Puncture sampling device for medical oncology

Abstract

The puncture sampling device comprises a biopsy gun and a sampling needle, the sampling needle comprises a puncture needle and a cutting sleeve, the cutting sleeve is arranged on the outer side of the puncture needle in a sleeving mode, the puncture needle and the cutting sleeve are both connected with the biopsy gun, a sampling groove is formed in the end, away from the biopsy gun, of the puncture needle, and the sampling groove is communicated with the biopsy gun. A sampling hole is formed in the end, close to the biopsy gun, of the side face of the puncture needle, a suction hole is formed in the position, aligned with the sampling hole, of the cutting sleeve, and a negative pressure suction device is connected to the suction hole and used for sucking tissue samples in the sampling groove into the suction hole. The biopsy gun is matched with the sampling needle to perform biopsy sampling on tumor tissues of a patient, the puncture needle is hollow, and medical staff can suck tissue samples in the sampling groove into the negative pressure suction device by utilizing the negative pressure suction device after sampling is completed, so that a needle head of the puncture needle can be effectively prevented from being polluted; the same puncture needle can be conveniently used for sampling for multiple times, and the whole sampling device is convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a puncture sampling device for oncology. Background Art

[0002] In the clinical diagnosis and treatment of oncology, it is often necessary to perform a puncture sampling of tumor tissue for pathological analysis, and then determine the treatment method based on the analysis results. This puncture sampling of tumor tissue requires a puncture sampling device, and the most commonly used puncture sampling device in clinical practice is a biopsy gun.

[0003] In actual operation, medical staff usually use a biopsy gun in conjunction with a sampling needle to take samples. When taking tumor biopsy samples from patients, sometimes the sampling volume is insufficient or the sampling does not meet the requirements. In this case, multiple biopsy samples need to be taken from the patient, but the sample needs to be taken out from the sampling slot after each sampling, which can easily cause contamination of the sampling needle. Continuing to use the contaminated sampling needle will increase the risk of infection for the patient, and replacing the sampling needle is more troublesome. Therefore, there is a lack of a biopsy sampling device on the market that can easily remove the biopsy sample from the sampling slot. Utility Model Content

[0004] The purpose of the utility model is to provide a puncture sampling device for oncology, aiming to improve the problem that the existing biopsy sampling device is inconvenient to remove tissue samples from the sampling needle and it is inconvenient for medical personnel to use the sampling needle to perform multiple biopsy sampling.

[0005] The utility model is achieved in this way:

[0006] A puncture sampling device for oncology includes a biopsy gun and a sampling needle. The sampling needle includes a puncture needle and a cutting cannula. The cutting cannula is arranged on the outside of the puncture needle. The puncture needle and the cutting cannula are both connected to the biopsy gun. A sampling groove is provided at the end of the puncture needle away from the biopsy gun, and a sampling hole is provided on the side of the puncture needle close to the biopsy gun. A suction hole is provided on the cutting cannula at a position aligned with the sampling hole. A negative pressure aspirator is connected to the suction hole to suck the tissue sample in the sampling groove into the interior thereof.

[0007] Furthermore, buckles are symmetrically provided on both sides of the biopsy gun, a pull rod is provided at the rear end of the biopsy gun, an end plate is provided at one end of the pull rod facing outward, and a connector is provided at the front end of the biopsy gun.

[0008] Furthermore, a needle is provided at the front end of the puncture needle, both the front and rear ends of the puncture needle are not opened, the inside of the puncture needle is hollow, and the sampling groove and the sampling hole are communicated.

[0009] Furthermore, a blade is provided at the front end of the cutting sleeve for cutting and sampling tumor tissue under the drive of the biopsy gun; the inner diameter of the suction hole is the same as the inner diameter of the sampling hole.

[0010] Furthermore, the negative pressure suction device includes a suction cylinder and a piston rod, the piston rod is inserted into the inner side of the suction cylinder, and the piston rod can move back and forth in the suction cylinder.

[0011] Furthermore, an observation port is longitudinally provided on the side of the suction tube, and scale lines are evenly provided on the side of the suction tube along the edge of the observation port. Buckle plates are symmetrically provided on the top of the side of the suction tube, and a suction tube is provided at the bottom end of the suction tube.

[0012] Furthermore, a rubber piston is provided at the bottom end of the piston rod, and a pressure head is provided at the top end of the piston rod.

[0013] Furthermore, it also includes a coaxial sleeve and a limiting cap, the coaxial sleeve is sleeved on the outside of the sampling needle, and the limiting cap is sleeved on the coaxial sleeve.

[0014] Furthermore, position marking lines are evenly arranged on the side surface of the coaxial sleeve from top to bottom, and a guide end is provided at the top end of the coaxial sleeve for smoothly inserting the sampling needle into the inner side of the coaxial sleeve.

[0015] Furthermore, a sleeve column is provided at one end of the limiting cap facing the biopsy gun, and a sleeve hole is provided in the middle of the limiting cap, and the sleeve hole is used to be sleeved on the coaxial sleeve.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This utility model can perform biopsy sampling on the patient's tumor tissue by using a biopsy gun in conjunction with a sampling needle. The puncture needle is hollow. After sampling is completed, medical personnel can use a negative pressure aspirator to suck the tissue sample inside the sampling groove into the negative pressure aspirator. This can effectively prevent the puncture needle from being contaminated and facilitate multiple sampling with the same puncture needle. In addition, this utility model is easy to operate, allowing staff to perform biopsy sampling efficiently.

[0018] 2. A limiting cap is provided on the outer side of the coaxial sleeve of the present invention. The limiting cap is moved to a suitable position to limit the puncture depth of the coaxial sleeve, thereby preventing the coaxial sleeve from puncturing too deeply. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0020] Figure 2 This is a schematic structural diagram of the biopsy gun of the utility model;

[0021] Figure 3 It is a structural diagram of the sampling needle of the utility model;

[0022] Figure 4 It is a structural diagram of the puncture needle of the utility model;

[0023] Figure 5 This is a schematic structural diagram of the cutting sleeve of the utility model;

[0024] Figure 6 It is a structural diagram of the negative pressure aspirator of the utility model;

[0025] Figure 7 This is a schematic structural diagram of the coaxial sleeve of the utility model;

[0026] Figure 8 It is a structural diagram of the limiting cap of the utility model.

[0027] In the figure: 1. Biopsy gun; 11. Retaining ring; 12. Pull rod; 13. End plate; 14. Connector; 2. Sampling needle; 21. Puncture needle; 211. Sampling slot; 212. Needle; 213. Sampling hole; 22. Cutting sleeve; 221. Blade; 222. Suction hole; 3. Negative pressure aspirator; 31. Suction cylinder; 311. Observation port; 312. Scale line; 313. Suction tube; 314. Retaining plate; 32. Piston rod; 321. Rubber piston; 322. Pressure head; 4. Coaxial sleeve; 41. Position marking line; 42. Guide end; 5. Limiting cap; 51. Sleeve column; 52. Sleeve hole. DETAILED DESCRIPTION

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0030] Example 1

[0031] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, a puncture sampling device for oncology includes a biopsy gun 1 and a sampling needle 2. The biopsy gun 1 and the sampling needle 2 are used to facilitate sampling of tumors in patients. The sampling needle 2 includes a puncture needle 21 and a cutting cannula 22. The cutting cannula 22 is mounted on the outside of the puncture needle 21. Both the puncture needle 21 and the cutting cannula 22 are connected to the biopsy gun 1. The puncture needle 21 and the cutting cannula 22 are used to facilitate puncturing and cutting tumor tissue in the patient. The end of the puncture needle 21 away from the biopsy gun 1 is provided with a sampling groove 211. The sampling groove 211 facilitates the cutting and temporary storage of tumor tissue with the cutting cannula 22. The side of the puncture needle 21 near the biopsy gun 1 is provided with a sampling hole 213. The cutting cannula 22 is provided with a suction hole 222 aligned with the sampling hole 213. The combination of the sampling hole 213 and the suction hole 222 facilitates the aspiration of tissue samples. The suction hole 222 is connected to a negative pressure suction device 3 for sucking the tissue sample in the sampling groove 211 into the interior thereof.

[0032] like Figure 2 As shown, the biopsy gun 1 is symmetrically provided with buckles 11 on both sides. Buckles 11 are convenient for medical personnel to hold the biopsy gun 1 with their fingers. A pull rod 12 is provided at the rear end of the biopsy gun 1. The pull rod 12 is used to tighten the sampling needle 2, thereby facilitating the activation of the sampling needle 2 for sampling. The pull rod 12 is provided with an end plate 13 at the outward end. The end plate 13 is convenient for pulling or pressing the pressure plate. A connector 14 is provided at the front end of the biopsy gun 1. The connector 14 facilitates the insertion of the sampling needle 2 into the biopsy gun 1, thereby facilitating the connection of the sampling needle 2 to the biopsy gun 1.

[0033] like Figure 4 As shown, a needle 212 is provided at the front end of the puncture needle 21. Both the front and rear ends of the puncture needle 21 are not opened. The inside of the puncture needle 21 is hollow, and the sampling groove 211 and the sampling hole 213 are connected. The puncture needle 21 with this structure is convenient for puncture and cooperates with the negative pressure absorber 3 to suck out the sample.

[0034] like Figure 5 As shown, a blade 221 is provided at the front end of the cutting sleeve 22 for cutting and sampling tumor tissue under the drive of the biopsy gun 1 ; the inner diameter of the suction hole 222 is the same as that of the sampling hole 213 , which is convenient for connection with the negative pressure suction device 3 .

[0035] like Figure 6As shown, the negative pressure suction device 3 includes a suction tube 31 and a piston rod 32. The piston rod 32 is inserted into the inner side of the suction tube 31, and the piston rod 32 can move back and forth in the suction tube 31. This structure makes it convenient to pull the piston rod 32 to suck out the tissue sample in the sampling slot 211. An observation port 311 is longitudinally provided on the side of the suction tube 31. The observation port 311 is used to observe the sample inside the suction tube 31. And scale lines 312 are evenly provided along the edge of the observation port 311 on the side of the suction tube 31. The scale lines 312 are convenient for observing whether the amount of the sample meets the usage requirements. A buckle plate 314 is symmetrically provided on the top of the side of the suction tube 31. The buckle plate 314 is convenient for medical staff to buckle the buckle plate 314. A straw 313 is provided at the bottom end of the suction tube 31. The straw 313 is convenient for inserting into the suction hole 222, thereby facilitating the suction of tissue samples. A rubber piston 321 is provided at the bottom end of the piston rod 32, and a pressure head 322 is provided at the top end of the piston rod 32; this structure facilitates the suction and use of the piston rod 32, and is convenient for pulling the piston rod 32 to suck the sample.

[0036] Working principle: When in use, connect the sampling needle 2 and the biopsy gun 1, then tighten the sampling needle 2 through the biopsy gun 1, then use the sampling needle 2 to puncture the tumor area, and stimulate the sampling needle 2 through the biopsy gun 1 to sample tumor tissue. After the sampling is completed, pull the piston rod 32, and use the negative pressure absorber 3 to suck the tissue sample inside the sampling groove 211 into the negative pressure absorber 3. This structure can effectively prevent medical staff from touching the puncture end of the sampling needle 2 with their hands or other tools, and effectively prevent the puncture needle 21 from being contaminated. Compared with the prior art, the present application can perform biopsy sampling on the patient's tumor tissue through the biopsy gun 1 in combination with the sampling needle 2, and the puncture needle 21 is hollow. After the sampling is completed, the medical staff can use the negative pressure absorber 3 to suck the tissue sample inside the sampling groove 211 into the negative pressure absorber 3, which can effectively prevent the needle head 212 of the puncture needle 21 from being contaminated, and facilitate multiple sampling using the same puncture needle 21. The entire sampling device is easy to operate, which facilitates the staff to perform biopsy sampling efficiently.

[0037] Example 2

[0038] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, a puncture sampling device for oncology includes a biopsy gun 1 and a sampling needle 2. The biopsy gun 1 and the sampling needle 2 are used to facilitate sampling of tumors in patients. The sampling needle 2 includes a puncture needle 21 and a cutting cannula 22. The cutting cannula 22 is mounted on the outside of the puncture needle 21. Both the puncture needle 21 and the cutting cannula 22 are connected to the biopsy gun 1. The puncture needle 21 and the cutting cannula 22 are used to facilitate puncturing and cutting tumor tissue in the patient. The end of the puncture needle 21 away from the biopsy gun 1 is provided with a sampling groove 211. The sampling groove 211 facilitates the cutting and temporary storage of tumor tissue with the cutting cannula 22. The side of the puncture needle 21 near the biopsy gun 1 is provided with a sampling hole 213. The cutting cannula 22 is provided with a suction hole 222 aligned with the sampling hole 213. The combination of the sampling hole 213 and the suction hole 222 facilitates the aspiration of tissue samples. The suction hole 222 is connected to a negative pressure suction device 3 for sucking the tissue sample in the sampling groove 211 into the interior thereof.

[0039] like Figure 2 As shown, the biopsy gun 1 is symmetrically provided with buckles 11 on both sides. Buckles 11 are convenient for medical personnel to hold the biopsy gun 1 with their fingers. A pull rod 12 is provided at the rear end of the biopsy gun 1. The pull rod 12 is used to tighten the sampling needle 2, thereby facilitating the activation of the sampling needle 2 for sampling. The pull rod 12 is provided with an end plate 13 at the outward end. The end plate 13 is convenient for pulling or pressing the pressure plate. A connector 14 is provided at the front end of the biopsy gun 1. The connector 14 facilitates the insertion of the sampling needle 2 into the biopsy gun 1, thereby facilitating the connection of the sampling needle 2 to the biopsy gun 1.

[0040] like Figure 4 As shown, a needle 212 is provided at the front end of the puncture needle 21. Both the front and rear ends of the puncture needle 21 are not opened. The inside of the puncture needle 21 is hollow, and the sampling groove 211 and the sampling hole 213 are connected. The puncture needle 21 with this structure is convenient for puncture and cooperates with the negative pressure absorber 3 to suck out the sample.

[0041] like Figure 5 As shown, a blade 221 is provided at the front end of the cutting sleeve 22 for cutting and sampling tumor tissue under the drive of the biopsy gun 1 ; the inner diameter of the suction hole 222 is the same as that of the sampling hole 213 , which is convenient for connection with the negative pressure suction device 3 .

[0042] like Figure 6As shown, the negative pressure suction device 3 includes a suction tube 31 and a piston rod 32. The piston rod 32 is inserted into the inner side of the suction tube 31, and the piston rod 32 can move back and forth in the suction tube 31. This structure makes it convenient to pull the piston rod 32 to suck out the tissue sample in the sampling slot 211. An observation port 311 is longitudinally provided on the side of the suction tube 31. The observation port 311 is used to observe the sample inside the suction tube 31. And scale lines 312 are evenly provided along the edge of the observation port 311 on the side of the suction tube 31. The scale lines 312 are convenient for observing whether the amount of the sample meets the usage requirements. A buckle plate 314 is symmetrically provided on the top of the side of the suction tube 31. The buckle plate 314 is convenient for medical staff to buckle the buckle plate 314. A straw 313 is provided at the bottom end of the suction tube 31. The straw 313 is convenient for inserting into the suction hole 222, thereby facilitating the suction of tissue samples. A rubber piston 321 is provided at the bottom end of the piston rod 32, and a pressure head 322 is provided at the top end of the piston rod 32; this structure facilitates the suction and use of the piston rod 32, and is convenient for pulling the piston rod 32 to suck the sample.

[0043] like Figure 1 As shown, it also includes a coaxial sleeve 4 and a limiting cap 5. The coaxial sleeve 4 is sleeved on the outside of the sampling needle 2, and the limiting cap 5 is sleeved on the coaxial sleeve 4; the coaxial sleeve 4 is conveniently sleeved on the sampling needle 2, and then the coaxial sleeve 4 is conveniently used in conjunction with the sampling needle 2, which is convenient for multiple sampling of the patient. The limiting cap 5 can limit the depth of the coaxial sleeve 4 inserted into the patient's body.

[0044] like Figure 7 As shown, the side of the coaxial cannula 4 is evenly provided with position marking lines 41 from top to bottom. The position marking lines 41 are used to facilitate understanding the insertion depth of the coaxial cannula 4 into the patient's body. A guide end 42 is provided at the top of the coaxial cannula 4 for smoothly inserting the sampling needle 2 into the inner side of the coaxial cannula 4.

[0045] like Figure 8 As shown, a sleeve column 51 is provided at one end of the limiting cap 5 facing the biopsy gun 1 , and a sleeve hole 52 is provided in the middle of the limiting cap 5 , and the sleeve hole 52 is used to be sleeved on the coaxial sleeve 4 .

[0046] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A puncture sampling device for oncology, comprising a biopsy gun (1) and a sampling needle (2), characterized in that: The sampling needle (2) comprises a puncture needle (21) and a cutting sleeve (22), wherein the cutting sleeve (22) is sleeved on the outside of the puncture needle (21), and both the puncture needle (21) and the cutting sleeve (22) are connected to the biopsy gun (1). The end of the puncture needle (21) away from the biopsy gun (1) is provided with a sampling groove (211), and the side of the puncture needle (21) close to the biopsy gun (1) is provided with a sampling hole (213), and the cutting sleeve (22) is provided with a suction hole (222) aligned with the sampling hole (213). The suction hole (222) is connected to a negative pressure suction device (3) for sucking tissue samples in the sampling groove (211) into the interior thereof.

2. The oncology puncture sampling device according to claim 1, characterized in that: Buckles (11) are symmetrically provided on both sides of the biopsy gun (1), and a pull rod (12) is provided at the rear end of the biopsy gun (1), an end plate (13) is provided at the end of the pull rod (12) facing outward, and a connecting head (14) is provided at the front end of the biopsy gun (1).

3. The oncology puncture sampling device according to claim 1, characterized in that: The front end of the puncture needle (21) is provided with a needle head (212), and both the front and rear ends of the puncture needle (21) are not opened. The inside of the puncture needle (21) is hollow, and the sampling groove (211) and the sampling hole (213) are connected.

4. The oncology puncture sampling device according to claim 1, characterized in that: The front end of the cutting sleeve (22) is provided with a blade (221) for cutting and sampling tumor tissue under the drive of the biopsy gun (1); the inner diameter of the suction hole (222) is the same as the inner diameter of the sampling hole (213).

5. The oncology puncture sampling device according to claim 1, characterized in that: The negative pressure suction device (3) comprises a suction cylinder (31) and a piston rod (32). The piston rod (32) is inserted into the inner side of the suction cylinder (31), and the piston rod (32) can move back and forth in the suction cylinder (31).

6. The oncology puncture sampling device according to claim 5, characterized in that: An observation port (311) is longitudinally provided on the side of the suction tube (31), and scale lines (312) are evenly provided on the side of the suction tube (31) along the edge of the observation port (311). A buckle plate (314) is symmetrically provided on the top of the side of the suction tube (31), and a suction pipe (313) is provided at the bottom end of the suction tube (31).

7. The oncology puncture sampling device according to claim 5, characterized in that: A rubber piston (321) is provided at the bottom end of the piston rod (32), and a pressure head (322) is provided at the top end of the piston rod (32).

8. The oncology puncture sampling device according to any one of claims 1 to 7, characterized in that: It also includes a coaxial sleeve (4) and a limiting cap (5), wherein the coaxial sleeve (4) is sleeved on the outside of the sampling needle (2), and the limiting cap (5) is sleeved on the coaxial sleeve (4).

9. The oncology puncture sampling device according to claim 8, characterized in that: Position marking lines (41) are evenly arranged on the side of the coaxial sleeve (4) from top to bottom, and a guide end (42) is provided at the top of the coaxial sleeve (4) for smoothly inserting the sampling needle (2) into the inner side of the coaxial sleeve (4).

10. The oncology puncture sampling device according to claim 8, characterized in that: The end of the limiting cap (5) facing the biopsy gun (1) is provided with a sleeve column (51), and the middle of the limiting cap (5) is provided with a sleeve hole (52), and the sleeve hole (52) is used to be sleeved on the coaxial sleeve (4).

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