Tumor sampling device

Abstract

The utility model provides a tumor sampling device which comprises a shell, a hollow puncture needle is arranged at the end of the shell, a sampling opening is formed in the side wall of the puncture needle, a cutting pipe is rotatably and slidably arranged in the puncture needle, a cutting groove is formed in the side wall of the cutting pipe, a cutting knife is arranged on the side edge of the cutting groove, and a locking assembly is arranged on the shell. Sliding of the cutting pipe can be selectively locked or unlocked through the locking assembly, the suction assembly connected with the cutting pipe is arranged in the shell, air in the cutting pipe is sucked through suction, and the cutting pipe can be controlled to rotate. Compared with a traditional mode of sampling by rotating a scraper, the device has the advantages that the tumor cutting area is smaller in the sampling process, so that the injury to a patient is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tumor sampling device. BACKGROUND

[0002] In the diagnosis and treatment process of tumor, accurate tumor sampling is the first key step. Accurate diagnosis of tumor depends on obtaining high-quality tumor tissue samples for pathological analysis, gene detection, etc., so as to provide basis for subsequent personalized treatment plan.

[0003] At present, the commonly used tumor sampling device in clinic has many problems. For example, the utility model discloses a kind of tumor biopsy sampler, including needle body and needle handle, strip-shaped hole is equipped on needle body, scraper is equipped on the side of strip-shaped hole, puncture knife is equipped at the front end of scraper, rotating handle is equipped on needle handle. When carrying out tumor biopsy sampling to patient, needle body is pierced into tumor and scraper is introduced into tumor by puncture knife, and tissue is scraped by rotating rotating handle scraper, so that sampling can be carried out.

[0004] But the existing sampling device in use, mostly by inserting sampler into tumor and rotating cutter to sample, this kind of sampling mode can cause large cutting surface, thereby causing great harm to patient, in view of this, a kind of tumor sampling device is presented to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides a kind of tumor sampling device to solve the technical problems that the existing sampling device in the background art is mostly inserted into tumor and rotated cutter to sample, which can cause large cutting surface, thereby causing great harm to patient.

[0006] To achieve the above purpose, the utility model provides the following technical scheme, a kind of tumor sampling device, comprising:

[0007] Shell, the hollow puncture needle is arranged at the end of the shell, and the sampling port is formed in the side wall of the puncture needle;

[0008] Cutting tube, rotatable and slidably arranged in the puncture needle, the cutting groove is formed in the side wall of the cutting tube, and the cutting knife is arranged on the side edge of the cutting groove;

[0009] Locking assembly, arranged on the shell, to selectively lock or unlock the sliding of the cutting tube;And

[0010] Suction assembly, arranged in the shell and connected with the cutting tube, to suck the air in the cutting tube, and the rotation of the cutting tube can be controlled.

[0011] Further, the locking assembly comprises a jackscrew, the jackscrew is screwed on the side wall of the shell, the cutting pipe is provided with a connecting barrel, an annular limiting groove is formed on the outer circular surface of the connecting barrel, and the jackscrew is clamped in the limiting groove.

[0012] Further, the suction assembly comprises:

[0013] A suction barrel is detachably arranged in the connecting barrel and communicates with the cutting pipe;

[0014] A pull rod is slidably arranged on the suction barrel along the axis of the pull rod; and

[0015] A piston block is arranged at one end of the pull rod located in the suction barrel.

[0016] Further, the outer side of the suction barrel is provided with a connecting column, an L-shaped groove is formed in the inner wall of the connecting barrel, and the connecting column is clamped in the L-shaped groove.

[0017] Further, the cutting pipe is slidably arranged along the axis of the cutting pipe and is provided with a containing pipe, the end of the containing pipe is provided with a connecting disc, and the connecting disc is detachably arranged in the connecting barrel.

[0018] Further, the connecting disc is provided with a sealing gasket, and the sealing gasket abuts against the end of the suction barrel.

[0019] Further, one end of the pull rod located outside the shell is provided with a push piece.

[0020] Compared with the prior art, the tumor sampling device has the following beneficial effects:

[0021] When the device is used, the puncture needle is pierced into the tumor, then the cutting rotation is controlled through the suction assembly, when the cutting groove coincides with the sampling port, the suction assembly is controlled to suck the air in the cutting pipe, so that the tumor enters the cutting pipe, the cutting pipe is continuously controlled to rotate, the cutting knife moves relative to the sampling port to cut the tumor, and finally the locking assembly is unlocked to the sliding of the cutting pipe. The cutting pipe can be taken out of the shell, so that the sampling of the tumor is completed. Compared with the traditional sampling method of rotating the scraper, the cutting area of the tumor in the sampling process is smaller, so that the harm to the patient is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present application, the drawings required in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0023] Figure 1 A cross-sectional view of the tumor sampling device is provided.

[0024] Figure 2 For Figure 1 enlarged view of the A area in the middle;

[0025] Figure 3 For the structure diagram of the cutting tube and the containing tube in the tumor sampling device of the utility model;

[0026] Figure 4 For the structure diagram of the suction assembly in the tumor sampling device of the utility model;

[0027] Reference signs:

[0028] 1, shell; 2, puncture needle; 3, sampling port; 4, cutting tube; 5, cutting groove; 6, cutting knife; 7, connecting barrel; 8, limiting groove; 9, L-shaped groove; 10, jackscrew; 11, containing tube; 12, connecting disc; 13, gasket; 14, suction barrel; 15, connecting column; 16, pull rod; 17, piston block; 18, push piece. DETAILED DESCRIPTION

[0029] The following detailed description of the utility model in conjunction with the drawings, it is necessary to point out that the following detailed description is only used to further illustrate the utility model, and can not be understood as limiting the scope of protection of the utility model, the skilled person in the art can make some non-essential improvements and adjustments to the utility model according to the above application content.

[0030] Embodiment:

[0031] As Figures 1 to 3 shown, the utility model provides a kind of tumor sampling device, including shell 1, the hollow puncture needle 2 of shell 1 end portion is provided with, the lateral wall of puncture needle 2 is opened with sampling port 3, cutting tube 4 is rotatably and slidably arranged in puncture needle 2, cutting groove 5 is opened in the lateral wall of cutting tube 4, and the side edge of cutting groove 5 is provided with cutting knife 6.

[0032] The sampling device is inserted into tumor body when using puncture needle 2, it can be understood that, in preferred embodiment, first rotate cutting tube 4 before inserting into tumor body so that cutting groove 5 does not coincide with sampling port 3, avoid in the process of inserting puncture needle 2, tumor is first subjected to extrusion of cutting groove 5 and causes damage. After placing puncture needle 2, rotate cutting tube 4 again so that cutting groove 5 coincides with sampling port 3, so that tumor can enter cutting tube 4, rotate cutting tube 4 again to drive cutting knife 6 to move and cut tumor, and the tumor after cutting is located in cutting tube 4.

[0033] As Figures 1 to 3As shown in the embodiment, the shell 1 is provided with a locking assembly, the sliding of the cutting tube 4 is selectively locked or unlocked through the locking assembly, the locking assembly comprises a jackscrew 10, the jackscrew 10 is screwed on the side wall of the shell 1, the cutting tube 4 is provided with a connecting barrel 7, the outer circular surface of the connecting barrel 7 is provided with an annular limiting groove 8, and the jackscrew 10 is clamped in the limiting groove 8. Through the arrangement of the jackscrew 10, the cutting tube 4 can only rotate in the puncture needle 2, so that the cutting tube 4 is prevented from sliding out due to misoperation in the cutting process. After sampling is completed, the jackscrew 10 can be rotated to be separated from the limiting groove 8, so that the cutting tube 4 can be taken out to obtain the sample cut.

[0034] As shown in the embodiment, the shell 1 is provided with a locking assembly, the sliding of the cutting tube 4 is selectively locked or unlocked through the locking assembly, the locking assembly comprises a jackscrew 10, the jackscrew 10 is screwed on the side wall of the shell 1, the cutting tube 4 is provided with a connecting barrel 7, the outer circular surface of the connecting barrel 7 is provided with an annular limiting groove 8, and the jackscrew 10 is clamped in the limiting groove 8. Through the arrangement of the jackscrew 10, the cutting tube 4 can only rotate in the puncture needle 2, so that the cutting tube 4 is prevented from sliding out due to misoperation in the cutting process. After sampling is completed, the jackscrew 10 can be rotated to be separated from the limiting groove 8, so that the cutting tube 4 can be taken out to obtain the sample cut. Figure 1 、 3 As shown in the embodiment, the shell 1 is provided with a locking assembly, the sliding of the cutting tube 4 is selectively locked or unlocked through the locking assembly, the locking assembly comprises a jackscrew 10, the jackscrew 10 is screwed on the side wall of the shell 1, the cutting tube 4 is provided with a connecting barrel 7, the outer circular surface of the connecting barrel 7 is provided with an annular limiting groove 8, and the jackscrew 10 is clamped in the limiting groove 8. Through the arrangement of the jackscrew 10, the cutting tube 4 can only rotate in the puncture needle 2, so that the cutting tube 4 is prevented from sliding out due to misoperation in the cutting process. After sampling is completed, the jackscrew 10 can be rotated to be separated from the limiting groove 8, so that the cutting tube 4 can be taken out to obtain the sample cut.

[0035] In some preferred embodiments, the outer side of the suction barrel 14 is provided with a connecting column 15, the inner wall of the connecting barrel 7 is provided with an L-shaped groove 9, the connecting column 15 is clamped in the L-shaped groove 9, and the detachable connection of the suction barrel 14 and the connecting barrel 7 can be realized through the cooperation of the connecting column 15 and the L-shaped groove 9. When the cutting groove 5 coincides with the sampling port 3, the piston block 17 can be slid in the suction barrel 14 by pulling the pull piece 18, so that the suction barrel 14 is in a negative pressure state, tumor tissue is sucked into the cutting tube 4, and the cutting and sampling work of the tumor are completed by rotating the pull piece 18 to drive the cutting tube 4 to rotate.

[0036] As shown in the embodiment, the shell 1 is provided with a locking assembly, the sliding of the cutting tube 4 is selectively locked or unlocked through the locking assembly, the locking assembly comprises a jackscrew 10, the jackscrew 10 is screwed on the side wall of the shell 1, the cutting tube 4 is provided with a connecting barrel 7, the outer circular surface of the connecting barrel 7 is provided with an annular limiting groove 8, and the jackscrew 10 is clamped in the limiting groove 8. Through the arrangement of the jackscrew 10, the cutting tube 4 can only rotate in the puncture needle 2, so that the cutting tube 4 is prevented from sliding out due to misoperation in the cutting process. After sampling is completed, the jackscrew 10 can be rotated to be separated from the limiting groove 8, so that the cutting tube 4 can be taken out to obtain the sample cut. Figures 1 to 3

[0037] The tumor tissue cut is dropped into the containing tube 11, the containing tube 11 is fixed through the abutment of the suction barrel 14 and the sealing pad 13, after the cutting is completed and the cutting tube 4 is taken out, the suction barrel 14 is disassembled, and then the containing tube 11 is taken out, so that the tumor tissue can be obtained, and the sample acquisition is also convenient.

[0038] The specific use mode and beneficial effects of the utility model are as follows:

[0039] ​In use, the device is used to stab the puncture needle 2 into the tumor, then control the cutting rotation through the suction assembly, when the cutting groove 5 is coincided with the sampling port 3, then control the suction assembly to suck the air inside the cutting tube 4, so that the tumor enters the cutting tube 4, then continue to control the cutting tube 4 to rotate, so that the cutting knife 6 moves relative to the sampling port 3 to cut the tumor, finally, the locking assembly is unlocked to unlock the cutting tube 4, then the cutting tube 4 is taken out of the shell 1, so that the sampling of the tumor is completed.

[0040] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious for those skilled in the art. Therefore, these modifications or improvements made without deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.

Claims

1. A tumor sampling device, comprising: The utility model relates to a blood sampling device, which comprises: a housing (1) provided with a hollow puncture needle (2) at one end, the side wall of the puncture needle (2) being provided with a sampling port (3); a cutting tube (4) rotatably and slidably arranged in the puncture needle (2), the side wall of the cutting tube (4) being provided with a cutting groove (5), the side edge of the cutting groove (5) being provided with a cutting knife (6); a locking assembly arranged on the housing (1) to selectively lock or unlock the sliding of the cutting tube (4); and a suction assembly arranged in the housing (1) and connected with the cutting tube (4) to suck the air inside the cutting tube (4) and control the rotation of the cutting tube (4). The locking assembly comprises a jackscrew (10) screwed on the side wall of the housing (1), the cutting tube (4) is provided with a connecting cylinder (7), the outer circular surface of the connecting cylinder (7) is provided with an annular limiting groove (8), and the jackscrew (10) is clamped in the limiting groove (8).

2. The tumor sampling device of claim 1, wherein: The suction assembly comprises:

3. The tumor sampling device of claim 2, wherein, a suction cylinder (14) detachably arranged in the connecting cylinder (7) and in communication with the cutting tube (4); a pull rod (16) slidably arranged along the axis of the suction cylinder (14); and a piston block (17) arranged at one end of the pull rod (16) located in the suction cylinder (14). The outer side of the suction cylinder (14) is provided with a connecting column (15), the inner wall of the connecting cylinder (7) is provided with an L-shaped groove (9), and the connecting column (15) is clamped in the L-shaped groove (9).

4. The tumor sampling device of claim 3, wherein: A containing tube (11) is slidably arranged along the axis of the cutting tube (4), the end of the containing tube (11) is provided with a connecting disc (12), and the connecting disc (12) is detachably arranged in the connecting cylinder (7).

5. The tumor sampling device of claim 3, wherein: The connecting disc (12) is provided with a sealing gasket (13), and the sealing gasket (13) abuts against the end of the suction cylinder (14).

6. The tumor sampling device of claim 5, wherein: The end of the pull rod (16) located outside the housing (1) is provided with a pull tab (18).

7. The tumor sampling device of claim 3, wherein: ​

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