Disposable high-development breast minimally invasive rotary cutting biopsy device

Abstract

The disposable high-development breast minimally invasive rotary cutting biopsy device comprises a blade, a needle tube and a handle, the blade is arranged at the front end of the needle tube, the handle is arranged at the rear end of the needle tube, a sampling window is formed in the needle tube, a plurality of development parts are arranged on the surface of the outer wall, located on the right side of the sampling window, of the needle tube, and the development parts are arranged on the needle tube. The plurality of developing parts are arranged at intervals along the axial direction of the needle tube and are distributed along the whole axial length of the needle tube. The breast minimally invasive rotary cutting biopsy device solves the problem that in the prior art, developing is not obvious in the operation process of a breast minimally invasive rotary cutting biopsy device. A wound scar left by cutting the side surface of the breast can be easily hidden, so that the medical experience of a patient is greatly improved; and moreover, the tissue cutting process is smoother.

Description

TECHNICAL FIELD

[0001] The present application relates to the breast surgery equipment technical field, more specifically, it relates to a disposable high-visualization breast minimally invasive rotary biopsy device. BACKGROUND

[0002] With the increase of the incidence of breast disease, biopsy system is usually used to help patients determine whether the cells in the detected area are cancerous. Medical staff usually uses a rotary biopsy system to repeatedly cut the suspicious lesion and obtains a histological specimen of the breast by vacuum suction into a sample collection device. The breast minimally invasive rotary biopsy device is a commonly used medical instrument for biopsy sampling, cell suction and other purposes in breast tissue.

[0003] However, the needle tube of the existing breast minimally invasive rotary biopsy device is usually smooth on the outer wall, and after extending into the human tissue, it needs to be rotated in a certain direction to make the sampling window on the needle tube located at the position of the tumor. This causes the sampling window after rotation to be opposite to the medical staff, so that the smooth outer wall of the needle tube is opposite to the ultrasonic B-ultrasound, and the smooth outer wall of the needle tube will produce mirror reflection to the incident sound wave under the ultrasonic B-ultrasound image, resulting in unclear image of the visualized needle tube, inaccurate judgment of the position of the needle tube by the doctor, and the rotary biopsy needle may be inserted too much or not in place, resulting in deviation of the sampling window from the predetermined tumor position, which is not convenient for the doctor to operate.

[0004] Therefore, the prior art still needs to be improved and developed. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a disposable high-visualization breast minimally invasive rotary biopsy device, which solves the problem of inaccurate positioning of the rotary biopsy position caused by unclear visualization of the breast minimally invasive rotary biopsy device in the prior art during the operation.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is:

[0007] The present application provides a disposable high-visualization breast minimally invasive rotary biopsy device, which comprises a blade, a needle tube and a handle, the blade is arranged at the front end of the needle tube, the handle is arranged at the rear end of the needle tube, and a sampling window is formed on the needle tube. A plurality of visualization parts are arranged on the outer wall surface of the right side of the needle tube, the plurality of visualization parts are arranged at intervals along the axial direction of the needle tube, and are distributed along the entire axial length of the needle tube.

[0008] Optionally, the plurality of visualization parts are arranged at intervals along a predetermined length, and the interval is not more than 10mm.

[0009] Optionally, the visualization part comprises a visualization groove.

[0010] Optionally, the visualization groove comprises a circular groove, and the outer diameters of the plurality of circular grooves are equal.

[0011] Optionally, the developing recess comprises a polygonal recess.

[0012] Optionally, the developing recess has a midline perpendicular to the axial direction of the needle tube, and the inner wall of the developing recess is inclined to the midline.

[0013] Optionally, the inner wall of the developing recess is provided as a frosted surface.

[0014] Optionally, the developing part comprises a scale groove, and the scale groove extends along the circumferential direction of the needle tube by a predetermined length.

[0015] Alternatively, the developing part comprises a frosted area.

[0016] Optionally, the needle tube comprises a cylindrical part and a side part, the sampling window is arranged on the cylindrical part, the needle tube is rolled to form the side part by the edge abutting of the cylindrical part, the side part is located at the right side of the sampling window, and the developing part is arranged on the side part.

[0017] Optionally, the side part is recessed inwardly from the outer circumferential wall of the cylindrical part.

[0018] Optionally, the length of the needle tube is 110 mm, 130 mm or 150 mm.

[0019] Optionally, the blade has a blade tip angle of no more than 35° at the end away from the needle tube.

[0020] Optionally, the front end of the needle tube is connected to the blade through a streamlined fixing end, the longitudinal section of the streamlined fixing end is an arc profile, and the slope of the arc profile gradually increases in the direction from the front end to the rear end.

[0021] The one-time high-developing breast minimally invasive rotary biopsy device provided by the application has at least the following beneficial effects: a plurality of developing parts are arranged on the outer wall surface of the needle tube at the right side of the sampling window, the plurality of developing parts are arranged at intervals along the axial direction of the needle tube, the right outer wall of the entire needle tube forms a non-smooth surface, when the needle tube is located under the B-ultrasound image and the sampling window is located below the tumor and the right side of the needle tube is opposite to the B-ultrasound image during the operation process, the plurality of developing parts on the right side of the needle tube can be distinguished from other areas and highlighted in the developing image, thereby enhancing the developing effect of the needle tube and the sampling window under the B-ultrasound, and enabling the doctor to accurately determine the position of the needle tube and improve the operation efficiency and save the operation time. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0023] Figure 1 A structure schematic view of a disposable high-visualization breast minimally invasive rotary biopsy device provided by the embodiment of the present application;

[0024] Figure 2 A front view of a needle tube part of a disposable high-visualization breast minimally invasive rotary biopsy device provided by the embodiment of the present application;

[0025] Figure 3 A structure schematic view of a needle tube part of a disposable high-visualization breast minimally invasive rotary biopsy device provided by the embodiment of the present application;

[0026] Figure 4 A front view of various visualization parts of a disposable high-visualization breast minimally invasive rotary biopsy device provided by the embodiment of the present application, wherein Figure 4 (a) is a front view of a structure of a polygonal groove, Figure 4 (b) is a front view of another structure of a polygonal groove, Figure 4 (c) is a front view of a ruled groove, Figure 4 (d) is a front view of a frosted area;

[0027] Figure 5 A sectional view of a front end part of a disposable high-visualization breast minimally invasive rotary biopsy device provided by the embodiment of the present application.

[0028] In the drawings, various reference numerals refer to various identical or similar parts.

[0029] 100, needle tube; 110, sampling window; 120, visualization part; 130, visualization groove; 131, circular groove; 132, polygonal groove; 133, ruled groove; 134, inclined inner wall; 135, frosted surface; 136, frosted area; 140, cylindrical part; 141, side part; 200, blade; 210, blade tip angle; 220, streamlined fixed end; 300, handle. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0031] It should be noted that when a component is referred to as being "fixed" or "set up" on another component, it can be directly or indirectly on the other component. When a component is referred to as being "connected" to another component, it can be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or position shown in the drawings, and are used only for convenience of description, and cannot be understood as a limitation on the technical solutions. The terms "first", "second" are only used for convenience of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0032] The existing rotary biopsy needle not only has the problem of unclear visualization during the operation due to the smooth right side wall of the needle tube, affecting the positioning of the rotary cutting position. Moreover, the length of the existing rotary biopsy needle is usually 90 mm. For a 90 mm long rotary biopsy needle, the doctor usually inserts it from the front of the breast close to the lesion position (tumor position) during use, which will leave a scar on the front of the breast after the operation. If it is inserted from the side of the breast base, the scar will be left on the breast base and will not be very obvious, which can improve the patient's medical experience; however, in anatomy, the breast base diameter is 120-160 mm, and if you want to insert it from the side of the breast base to the lesion position (tumor position) during the operation, the length of the existing 90 mm long rotary biopsy needle is too short, and the distance is usually not enough. In addition, the blade at the front end of the existing rotary biopsy needle has an acute angle, and the angle is usually 45 degrees, which is not sharp during use, resulting in difficulty in puncturing the existing rotary biopsy needle. Therefore, the following embodiments are proposed to solve the above problems, as follows:

[0033] As Figure 1 , Figure 2As shown, the embodiment proposes a disposable high-visualization breast minimally invasive rotary biopsy device, which comprises a blade 200, a needle tube 100 and a handle 300. The blade 200 is arranged at the front end of the needle tube 100, used to open the patient's breast to insert the needle tube 100 into the patient's body; the handle 300 is arranged at the rear end of the needle tube 100, which is convenient for the doctor to hold. In this embodiment, the needle tube 100 and the blade 200 are improved, and the handle 300 can adopt the existing structure form, so the handle 300 is not specifically described. A sampling window 110 is arranged on the needle tube 100, and the direction of the sampling window 110 facing the doctor is the positive direction of the needle tube 100. When the positive direction faces the doctor, the line of sight looks from back to front, the left side of the sampling window 110 is the left direction, and the right side of the sampling window 110 is the right direction. A plurality of visualization parts 120 are arranged on the outer wall surface of the right side of the needle tube 100, and the plurality of visualization parts 120 are arranged along the axial direction of the needle tube 100 and distributed along the entire axial length of the needle tube 100. In this way, a row of visualization parts 120 are arranged on the right side of the sampling window 110 on the outer side wall of the needle tube 100, and the plurality of visualization parts 120 can enhance the visualization of the ultrasonic B-ultrasound.

[0034] In a possible use process of the disposable high-visualization breast minimally invasive rotary biopsy device, first, the position of the tumor in the breast is located by ultrasonic B-ultrasound, the approach of the minimally invasive rotary biopsy device is determined, the opening is cut out by the blade 200 at the front end, the needle tube 100 is inserted into the breast according to the approach, the visualization of the B-ultrasound is observed, the sampling window 110 on the needle tube 100 is positioned at the tumor (in this process, it needs to be rotated by 90° to make the sampling window 110 face the tumor, so that the right side outer wall of the needle tube 100 faces the ultrasonic B-ultrasound), the tissue is sucked into the sampling window 110 by the negative pressure in the sampling window 110, the tissue is cut off by the inner rotary knife, and then the tissue is taken away from the sampling window 110 by the backward negative pressure, and the process is repeated until the suspicious lesion tissue is completely removed.

[0035] The disposable high-visualization breast minimally invasive rotary biopsy device provided by the application can make the plurality of visualization parts 120 on the right side of the needle tube 100 distinguish from other areas and highlight in the visualization image when the needle tube 100 is rotated to make the sampling window 110 located below the tumor and the right side of the needle tube 100 faces the B-ultrasound image during the operation process, thereby enhancing the visualization effect of the needle tube 100 and the sampling window 110 under the B-ultrasound, and enabling the doctor to accurately judge the position of the needle tube 100 and improve the operation efficiency and save the operation time.

[0036] As Figure 1 , Figure 2 illustrated, it should be noted that the plurality of developing portions 120 are arranged only on the right side of the outer wall of the needle tube 100, and only one developing portion 120 can be arranged in the circumferential direction. When the needle tube 100 is turned during the operation to position the sampling window 110 at the tumor site, causing the right side of the outer wall of the needle tube 100 to face the ultrasound B-ultrasound, the developing portion 120 on the right side can achieve a clearer developing image, which can meet the use requirements of the doctor. It is not necessary to arrange redundant developing portions 120 on other places in the circumferential direction of the outer circle of the needle tube 100. The present embodiment only needs to arrange a row of developing portions 120 on the right side, which simplifies the production process and makes the production process simpler.

[0037] Further, the plurality of developing portions 120 of the present embodiment are arranged at intervals along a predetermined length, which can be set as needed, but should not be too large. In the process, the plurality of developing portions 120 at intervals of the predetermined length can enhance the developing effect under B-ultrasound, so that the image of the needle tube 100 in the breast is clearer, and the doctor can clearly determine the insertion length of the needle tube 100 according to the position of the plurality of developing portions 120 and more accurately determine the position of the sampling window 110, so that the sampling window 110 can be aligned to the tumor position. The interval of the predetermined length in the present embodiment is not more than 10 mm. Using this interval will not be too large, and the position of the sampling window 110 can be more accurately marked, so that the doctor can more accurately penetrate to the predetermined position through the developing of the developing portions 120 at intervals.

[0038] In the specific process, the predetermined length between the adjacent developing portions 120 of the present embodiment can be 10 mm, so that clear developing is achieved while the number of developing portions 120 in the axial direction of the entire needle tube 100 is slightly less, and the processing is simpler. The predetermined length can also be designed to be 3 mm, and more developing portions 120 can achieve clearer and more accurate developing, so that the position of the needle tube 100 is more accurate. It is easy to think that other distances can also be used, and the corresponding technical effects can also be achieved.

[0039] Further, the developing portion 120 of the present embodiment can have various structures, and the number of developing portions 120 is not limited, for example, it can be more than 9. The developing portion 120 can include a developing groove 130, which is specifically as follows:

[0040] As Figure 1 , Figure 2 , Figure 3As shown, in the first structure, the imaging groove 130 includes a circular groove 131. Using a circular groove 131 reduces specular reflection of the incident sound waves, thus making the ultrasound image clearer. Furthermore, the circular groove 131 is easy to manufacture, with low process requirements and low production costs. In this embodiment, the multiple circular grooves 131 have equal outer diameters. Circular grooves 131 with equal outer diameters have good consistency in the imaging image, making it easier for doctors to determine the position of the entire needle tube 100.

[0041] like Figure 4 As shown, in the second structure, the imaging groove 130 includes a polygonal groove 132. The polygonal groove 132 further enhances the surface roughness of the needle tube 100 through its multi-angled edges. This further reduces specular reflection of the incident sound waves at that location, achieving a clearer ultrasound image display effect. The outer contour of the polygonal groove 132 can be triangular (e.g., Figure 4 As shown in (a), quadrilaterals (such as...) Figure 4 (as shown in (b)), pentagrams, hexagons, etc.

[0042] like Figure 5 As shown, in one possible structure based on the above structure, the developing groove 130 has a centerline perpendicular to the axial direction of the needle tube 100. This centerline can be considered as the central axis of the developing groove 130. The inner wall of the developing groove 130 is inclined to the centerline, thus forming an inclined inner wall 134. Taking a circular groove 131 as an example, the outer contour of the circular groove 131 is circular, and the inner wall of the circular groove 131 is inclined, thus forming a conical structure, or the inclined inner wall 134 is arc-shaped, forming a spherical structure. Taking a polygonal groove 132 as an example, the inner wall of the polygonal groove 132 is inclined, thus forming a conical groove structure. By setting the inner wall of the developing groove 130 as an inclined inner wall 134, an irregular surface is formed due to the irregular angle between the inclined inner wall 134 and the outer wall of the needle tube 100, thereby reducing specular reflection of the incident sound waves at this position and achieving a clearer ultrasound image display effect.

[0043] like Figure 5 As shown, in one possible structure based on the above structure, the bottom surface of the developing groove 130 is set as a frosted surface 135 to enhance the roughness of the surface of the needle tube 100. Because the roughness of the entire developing groove 130 is further enhanced, specular reflection of the incident sound waves at that location is further reduced, resulting in a clearer ultrasound image display effect.

[0044] In addition, such as Figure 4As shown in (c), in the third structure of the developing section, the developing section 120 includes a groove 133 that extends a predetermined length circumferentially along the needle tube 100. The groove 133 also enhances the surface roughness of the needle tube 100. Furthermore, when multiple grooves 133 are formed on the surface of the needle tube 100, the spacing between the grooves 133 can be set smaller, making the grooves 133 more densely packed. This further roughens the surface of the needle tube 100, resulting in a clearer ultrasound image display. Figure 4 As shown in (d), in the fourth structure of the developing section 120, the developing section 120 can be directly set as a polygonal or circular frosted area 136, which can also enhance the surface roughness and achieve the effect of enhanced developing.

[0045] like Figure 2 , Figure 3 As shown, the syringe 100 can be cylindrical, with the entire outer circular sidewall of the syringe 100 being a complete circle. The developing section 120 is located on the outer wall surface of the complete circular syringe 100 on the right side of the sampling window 110.

[0046] However, the needle 100 is typically made by rolling a stainless steel sheet into a cylindrical shape and then welding the edges together. This process creates a seam at the weld, which would result in unevenness if a completely cylindrical needle 100 were used. Therefore, in another design, the needle 100 specifically includes a cylindrical portion 140 and a side portion 141. The sampling window 110 is located on the cylindrical portion 140. The side portion 141 is formed by rolling the needle 100 into a cylindrical portion 140 and joining the edges together. The side portion 141 is located to the right of the sampling window 110 and is recessed into the outer circular sidewall of the cylindrical portion 140. The imaging section 120 is located on the side portion 141. By contracting the outer wall of the cylindrical portion 140 inwards through the side portion 141, the connection point is made concave, ensuring smooth insertion of the needle 100 into the tissue. Furthermore, the developing section 120 is provided on the concave side section 141, which can be used for positioning, making it convenient to align multiple developing sections 120 during processing.

[0047] Further, the needle tube 100 of the present embodiment has a length of 110 mm, 130 mm or 150 mm. Since the length of the existing rotary biopsy needle is usually 90 mm, the length is feasible for the operation through the skin on the front of the breast close to the tumor position. However, this will leave a visible scar on the front of the breast, affecting the patient's experience. The lesion position (tumor position) can be inserted from the base side of the breast, and the doctor can perform the operation from the base side of the breast to the lesion position (tumor position). The scar on the side of the incision can be easily hidden, greatly improving the patient's experience. However, if the existing 90 mm long rotary biopsy needle is used for puncture insertion from the base side of the breast, the length of the needle is too short, and the distance is usually not enough. Therefore, the present embodiment lengthens the needle tube 100, and according to the large difference in subcutaneous fat of individuals, different specifications of the needle tube 100 can be designed for the doctor to choose. In this way, the doctor can choose the appropriate size of the needle tube 100 for the operation, improving the convenience of the operation.

[0048] Since the angle of the tip of the blade 200 at the front end of the existing rotary biopsy needle is usually 40°-45°, the cutting is not sharp when used, which makes it difficult for the existing rotary biopsy needle to puncture. As shown in Figure 2 , Figure 3 Therefore, further, the blade tip angle 210 of the end of the blade 200 away from the needle tube 100 is not greater than 35°. The smaller blade tip angle 210 makes the blade 200 at the front end more sharp, thereby facilitating the incision of the skin. The blade tip angle 210 of the present embodiment can be 30°, so that the blade 200 also has a certain width, which can ensure the sharpness while also ensuring the structural strength of the blade 200 at the front end. Alternatively, the blade 200 at the front end can be made of a new type of steel, which can grind a sharper blade, such as the steel of a scalpel.

[0049] As shown in Figure 5As shown, in one possible structure based on the above structure, the front end of the needle tube 100 is connected with the blade 200 through a streamlined fixed end, and the longitudinal section of the streamlined fixed end 220 is arc-shaped. The adoption of the streamlined fixed end 220 for fixedly connecting the needle tube 100 and the blade 200 makes the surface of the blade 200 and the connecting position of the needle tube 100 realize a smooth transition. The slope of the arc-shaped profile of the streamlined fixed end 220 gradually increases from the front end to the rear end, that is, the angle between the tangent of the arc-shaped profile and the surface of the blade 200 is small at the end close to the blade 200, and the angle gradually increases as the arc-shaped profile gradually approaches the needle tube 100. In this way, during the process of the blade 200 cutting the tissue, the tissue gradually separates to both sides along the arc-shaped profile of the streamlined fixed end 220, which reduces the contact resistance between the tissue and the streamlined fixed end 220, and makes the cutting process of the tissue more smooth, and the resistance of the doctor operating the minimally invasive rotary biopsy device is smaller.

[0050] In summary, the disposable high-visualization breast minimally invasive rotary biopsy device provided in the present application has a row of visualization portions on the outer side wall of the needle tube on the right side of the sampling window, and the roughness of the right side surface of the needle tube is increased through the multiple visualization portions, so as to enhance the visualization of the ultrasonic B-ultrasound, and the doctor can accurately determine the position of the needle tube, and the operation efficiency is improved and the operation time is saved. The length of the needle tube is designed to be lengthened, so as to be inserted into the lesion position (tumor position) from the base side of the breast, and the scar on the side of the incision can be easily hidden, which greatly improves the patient's medical experience. The adoption of a smaller blade tip angle, or / and the adoption of a streamlined fixed end for connecting the blade and the needle tube, or / and the adoption of a new type of steel material to grind a sharper blade reduces the contact resistance between the tissue and the streamlined fixed end, and makes the cutting process of the tissue more smooth.

[0051] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A single-use high-visualization breast minimally-invasive rotary biopsy device, comprising: The utility model discloses a blade, needle tube and handle, the blade is arranged in the front end of needle tube, handle is arranged in the rear end of needle tube, and the sampling window is seted up on needle tube, its characterized in being that the multiple development parts are seted up on the outer wall surface of the right side of sampling window of needle tube, and multiple development parts are arranged along the axial direction spacing and are distributed along the entire axial length of needle tube.

2. The single-use high-visualization breast minimally invasive core biopsy device of claim 1, wherein, Multiple development parts are arranged along the predetermined length spacing, and the interval predetermined length is not more than 10mm.

3. The disposable high-visualization breast minimally invasive core biopsy device of claim 1, wherein, The development part includes the development groove.

4. The single-use high-visualization breast minimally invasive core biopsy device of claim 3, wherein, The development groove includes: circular groove, the outer diameter of multiple circular grooves is equal. Or, the development groove includes polygonal groove.

5. The single-use high-visualization breast minimally invasive core biopsy device of claim 3, wherein, The development groove has the midline perpendicular to the axial direction of needle tube, and the inner wall of development part is inclined to midline.

6. The disposable high-visualization breast minimally invasive core biopsy device of claim 3, wherein, The inner wall of development groove is set to be frosted surface.

7. The disposable high-visualization breast minimally invasive core biopsy device of claim 1, wherein, The development part includes the scale groove, and the scale groove extends along the circumference of needle tube for a predetermined length. Or, the development part includes the frosted area.

8. The disposable high-visualization breast minimally invasive core biopsy device of claim 1, wherein, The length of needle tube is 110mm, 130mm or 150mm.

9. The disposable high-visualization breast minimally invasive core biopsy device of claim 1, wherein, The blade tip angle of the end of the blade away from the needle tube is not more than 35 °.

10. The single-use high-visualization breast minimally invasive core biopsy device of claim 9, wherein, The front end of needle tube is connected with the blade through the streamline fixed end, the longitudinal section of the streamline fixed end is arc profile, and the slope of the arc profile gradually increases along the direction from the front end to the rear end.

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