Tissue sampling device for breast biopsy

Abstract

The utility model relates to the field of medical sampling equipment, in particular to a tissue sampling device for breast biopsy. The tissue sampling device for breast biopsy comprises a shell and the like. The shell is provided with a complete needle inserting structure jointly composed of the needle head and the needle tube, after the inserting needle is inserted into the chest disease area of a patient, the spline shaft is pulled to drive the needle head to cut off biopsy tissue samples in the chest disease area of the patient, then the biopsy tissue samples cut off by the needle head are conveyed into the storage chamber through the micro screw rod, and the whole device is small, exquisite and compact. The operating room can work in the operating room with simple supporting facilities without being externally connected with any equipment, operation is convenient and free of hindrance, and the working efficiency of medical staff is greatly improved. The defects that an existing tissue sampling device for breast biopsy needs air exhaust equipment externally connected with an air exhaust pipe, the operation working range is limited, and the operation working efficiency is affected are effectively overcome.

Description

Technical Field

[0001] The utility model relates to the field of medical sampling equipment, in particular to a tissue sampling device for breast biopsy. Background Art

[0002] The existing breast biopsy tissue sampling device consists of a needle tube and a suction mechanism. After the medical staff inserts the needle tube into the diseased area of ​​the patient's chest, the cutting mechanism provided in the needle tube cuts the biopsy tissue sample in the diseased area of ​​the patient's chest, and then uses the suction mechanism to suck the cut biopsy tissue sample out of the needle tube through an external suction device. Therefore, the patient's breast biopsy tissue sampling operation needs to be performed in an operating room equipped with a suction device, which limits the working scope of the patient's breast biopsy tissue sampling operation. In addition, when the medical staff operates the breast biopsy tissue sampling device to perform the breast biopsy tissue sampling operation on the patient, the suction mechanism of the breast biopsy tissue sampling device is connected to a long suction pipe, which makes it impossible for the medical staff to flexibly operate the breast biopsy tissue sampling device, affecting the working efficiency of the breast biopsy tissue sampling operation. Utility Model Content

[0003] In order to overcome the shortcomings of the existing breast biopsy tissue sampling device that requires an external suction device through a suction tube, which not only limits the surgical working range but also affects the surgical working efficiency, the utility model provides a breast biopsy tissue sampling device.

[0004] The utility model discloses a tissue sampling device for breast biopsy, comprising a shell, a shaft sleeve, a needle tube, a spline shaft, a needle head, a micro screw and a driving assembly; a conveying chamber is arranged on the left side of the shell; a storage chamber connected to the conveying chamber is arranged in the middle of the shell; a needle tube connected to the conveying chamber is fixedly connected to the left end of the shell; a shaft sleeve is rotatably connected to the right side of the shell; a spline shaft is slidably connected in the shaft sleeve; a needle head is fixedly connected to the left end of the spline shaft, and the needle head is set as a conical structure contracted to the left; the needle head and the needle tube together form a complete needle insertion structure; a micro screw is rotatably connected in the conveying chamber in the shell; the spline shaft penetrates the micro screw; a driving assembly for driving the shaft sleeve to rotate is connected to the shell, and the driving assembly drives the shaft sleeve to rotate.

[0005] Preferably, a transparent sheet is provided on the storage chamber in the shell.

[0006] Preferably, a spring is fixedly connected between the right side of the spline shaft and the shaft sleeve.

[0007] Preferably, the right end of the spline shaft is rotatably connected with a pull block.

[0008] Preferably, the edge of the needle is provided with a flower tip structure.

[0009] Preferably, the driving assembly includes a micro motor, a first spur gear and a second spur gear; the micro motor is fixedly connected to the housing; the output shaft of the micro motor is fixedly connected to the first spur gear; the second spur gear is fixedly connected to the sleeve; the first spur gear is meshed with the second spur gear.

[0010] The utility model discloses a tissue sampling device for breast biopsy. The shell is provided with a complete needle structure composed of a needle and a needle tube. After the needle is inserted into the diseased area of ​​the patient's chest, the spline shaft is pulled to drive the needle to cut the biopsy tissue sample in the diseased area of ​​the patient's chest, and then the biopsy tissue sample cut by the needle is transported to the storage room through the micro screw. The device is small and compact as a whole, does not need any external equipment, can meet the needs of working in an operating room with simple supporting facilities, and is easy to operate without obstacles, which greatly improves the work efficiency of medical staff.

[0011] The utility model discloses a tissue sampling device for breast biopsy, which effectively avoids the disadvantages that the existing tissue sampling device for breast biopsy needs to be connected to an external suction device through a suction pipe, which not only limits the scope of surgical operation but also affects the efficiency of surgical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure described in the utility model;

[0013] Figure 2 A cross-sectional view of the shell described in the utility model;

[0014] Figure 3 This is a schematic diagram of the needle structure described in the utility model.

[0015] Markings in the accompanying drawings: 1-housing, 101-conveying chamber, 102-storage chamber, 11-sleeve, 12-transparent sheet, 2-needle tube, 21-spline shaft, 22-needle head, 220-spline tip, 23-spring, 24-pull block, 3-micro screw, 31-micro motor, 32-first spur gear, 33-second spur gear. DETAILED DESCRIPTION

[0016] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0017] Example

[0018] A tissue sampling device for breast biopsy, such as Figure 1-Figure 3As shown, it includes a housing 1, a sleeve 11, a needle tube 2, a spline shaft 21, a needle head 22, a micro screw 3 and a driving assembly; a conveying chamber 101 is provided on the left side of the housing 1; a storage chamber 102 connected to the conveying chamber 101 is provided in the middle of the housing 1; a transparent sheet 12 is provided on the front and rear sides of the storage chamber 102 in the housing 1 for convenient observation of the internal sampling situation; the needle tube 2 connected to the conveying chamber 101 is fixedly connected to the left end of the housing 1; the sleeve 11 is rotatably connected to the right side of the housing 1; A spline shaft 21 is slidably connected in the sleeve 11, and the left end of the spline shaft 21 passes through the storage chamber 102, the delivery chamber 101 and the needle tube 2 in sequence; a needle head 22 is fixedly connected to the left end of the spline shaft 21, and the needle head 22 is set to a conical structure that contracts to the left; the needle head 22 and the needle tube 2 together form a complete needle insertion structure; a micro screw 3 is rotatably connected in the delivery chamber 101 in the shell 1; the spline shaft 21 penetrates the micro screw 3; a driving assembly is connected to the shell 1, and the driving assembly drives the sleeve 11 to rotate.

[0019] like Figure 2 As shown, a spring 23 is fixedly connected between the right side of the spline shaft 21 and the sleeve 11 ; a pull block 24 is rotatably connected to the right end of the spline shaft 21 , and when the medical staff holds the pull block 24 , the pull block 24 will not rotate with the spline shaft 21 .

[0020] like Figure 2 As shown, the driving assembly includes a micro motor 31, a first spur gear 32 and a second spur gear 33; the micro motor 31 is bolted to the housing 1; the first spur gear 32 is fixedly connected to the output shaft of the micro motor 31; the second spur gear 33 is fixedly connected to the sleeve 11; the first spur gear 32 is meshed with the second spur gear 33.

[0021] When using the tissue sampling device for breast biopsy of the utility model, the medical staff holds the shell body 1 and inserts the complete needle structure composed of the needle 22 and the needle tube 2 into the diseased area of ​​the patient's chest. Then the medical staff presses the pull block 24 with one hand to push the spline shaft 21 to drive the spring 23 to compress to the left, so that the spline shaft 21 pushes the needle 22 to the left away from the needle tube 2. At this time, there will be a gap between the needle 22 and the needle tube 2. The size of the gap is controlled by the medical staff through the force of pressing the pull block 24. The larger the gap, the more diseased tissue in the diseased area of ​​the patient's chest enters the gap between the needle 22 and the needle tube 2. Then the medical staff releases the pull block 24, and the compressed spring 23 pushes the spline shaft 21 to drive the needle 22 to reset to the right, and the needle 22 cuts the diseased tissue into the needle tube 2 through the non-tip structure on the right, completing the single cutting of the biopsy tissue sample in the diseased area of ​​the patient's chest.

[0022] After that, the medical staff pulls the pull block 24 to the right, and the pull block 24 pulls the spline shaft 21 to drive the spring 23 to stretch to the right, so that the spline shaft 21 pulls the needle 22 to push the cut biopsy tissue sample along the needle tube 2 to the right into the delivery chamber 101. At the same time, the medical staff turns on the micro motor 31, and the micro motor 31 drives the first spur gear 32 to rotate. The first spur gear 32 engages with the second spur gear 33 to drive the sleeve 11 and the spline shaft 21 to rotate. The spline shaft 21 drives the micro screw 3 to rotate, and the rotating micro screw 3 sends the biopsy tissue sample entering the delivery chamber 101 to the right into the storage chamber 102. The medical staff can observe the biopsy tissue sample in the storage chamber 102 through the transparent sheet 12 to determine whether it is necessary to perform multiple single biopsy tissue sample cutting operations according to the above steps to obtain more biopsy tissue samples. The entire operation step does not require any external equipment, can meet the needs of working in an operating room with simple supporting facilities, and is convenient and unobstructed, greatly improving the work efficiency of medical staff.

[0023] In addition, if Figure 3 As shown, the edge of the needle 22 near one end of the needle tube 2 is provided with a plurality of flower tip 220 structures. When the medical staff presses the pull block 24 with one hand to push the spline shaft 21 to drive the spring 23 to compress to the left, so that the spline shaft 21 pushes the needle 22 to the left and away from the needle tube 2, the medical staff first turns on the micro motor 31 in advance. The micro motor 31 drives the spline shaft 21 and the needle 22 to rotate. The rotating needle 22 loosens the surrounding diseased tissue through the flower tip 220 structure, so that in the subsequent steps, the needle 22 cuts the diseased tissue into the needle tube 2 through the non-tip structure on the right, thereby improving the single cutting effect of the biopsy tissue sample.

[0024] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A tissue sampling device for breast biopsy, comprising: a housing (1); A conveying chamber (101) is provided on the left side of the housing (1); a storage chamber (102) connected to the conveying chamber (101) is provided in the middle of the housing (1); Its characteristics are: Also includes a needle tube (2); The left end of the shell (1) is fixedly connected to a needle tube (2) connected to a delivery chamber (101); the right side of the shell (1) is rotatably connected to a shaft sleeve (11); a spline shaft (21) is slidably connected inside the shaft sleeve (11); a needle head (22) is fixedly connected to the left end of the spline shaft (21), and the needle head (22) is configured as a cone structure that contracts to the left; the needle head (22) and the needle tube (2) together form a complete needle insertion structure; a micro screw (3) is rotatably connected inside the delivery chamber (101) in the shell (1); the spline shaft (21) penetrates the micro screw (3); a driving component that drives the shaft sleeve (11) to rotate is connected to the shell (1), and the driving component drives the shaft sleeve (11) to rotate.

2. A tissue sampling device for breast biopsy according to claim 1, characterized in that: A transparent sheet (12) is provided on the storage chamber (102) in the housing (1).

3. A tissue sampling device for breast biopsy according to claim 1, characterized in that: A spring (23) is fixedly connected between the right side of the spline shaft (21) and the shaft sleeve (11).

4. A tissue sampling device for breast biopsy according to claim 1, characterized in that: The right end of the spline shaft (21) is rotatably connected with a pull block (24).

5. A tissue sampling device for breast biopsy according to claim 1, characterized in that: The edge of the needle head (22) is provided with a flower tip (220) structure.

6. A tissue sampling device for breast biopsy according to any one of claims 1 to 5, characterized in that: The driving assembly includes a micro motor (31); A micro motor (31) is fixedly connected to the housing (1); a first spur gear (32) is fixedly connected to the output shaft of the micro motor (31); a second spur gear (33) is fixedly connected to the shaft sleeve (11); and the first spur gear (32) is meshed with the second spur gear (33).

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