Rotary-cut biopsy needle pressing tool

Abstract

The utility model discloses a rotary cutting biopsy needle pressing tool which comprises a bottom plate and a pressing plate, the pressing plate is fixed above the bottom plate, a driving unit is arranged below the pressing plate, an in-place block and a limiting unit are arranged on the pressing plate, the limiting unit is used for limiting the position of a knife tube, and the knife tube is arranged on the pressing plate. The in-place block is used for supporting the cutter tube and limiting the position of the inner cutter sleeve, and the driving unit pushes the outer thread sleeve to be assembled with the inner cutter sleeve in a press fit mode; according to the rotary-cut biopsy needle pressing tool, the limiting unit is used for limiting the knife tube, the driving unit is used for achieving pressing of the outer thread sleeve and the inner knife sleeve, the structure is simple, operation is convenient, the pressing efficiency of the outer thread sleeve and the inner knife sleeve is greatly improved, the pressing distance of the inner knife sleeve and the outer thread sleeve is positioned through the in-place block, and the pressing efficiency is improved. The pressing degree of the outer thread sleeve and the inner cutter sleeve is guaranteed, and the pressing precision is improved.

Description

Technical Field

[0001] The utility model relates to a biopsy technology, in particular to a rotary cutting biopsy needle pressing tool. Background Art

[0002] Breast biopsy is the abbreviation of "breast biopsy pathological examination", which refers to the method of taking the lesion tissue from the patient's body for pathological examination by local excision, forceps extraction, puncture needle aspiration, scraping, removal and other surgical methods to determine the diagnosis;

[0003] The existing disposable breast puncture needle needs to press the outer screw sleeve onto the inner knife sleeve bonded to the knife tube, so that the inner knife sleeve and the knife tube can be assembled in the biopsy gun. However, in order to prevent the outer screw sleeve and the inner knife sleeve from being misaligned during use, the inner wall of the outer screw sleeve and the outer wall of the inner knife sleeve must fit extremely tightly. At present, manual pressing is generally adopted, which requires workers to press hard, and the pressing efficiency is poor, which is far from meeting the requirements of mass production. In addition, the outer screw sleeve often cannot be completely pressed onto the inner knife sleeve, and the pressing accuracy is poor. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides a rotary biopsy needle pressing tooling, which has a simple structure and is easy to operate. It greatly improves the pressing efficiency of the outer screw sleeve and the inner knife sleeve, and can ensure the pressing degree of the outer screw sleeve and the inner knife sleeve with high pressing accuracy.

[0005] To achieve the above technical objectives, the utility model adopts the following technical solutions: a rotary biopsy needle pressing tool, used for pressing an outer screw sleeve and an inner tool sleeve, comprising a base plate and a pressing plate, wherein the pressing plate is fixed above the base plate, a driving unit is provided below the pressing plate, a positioning block and a limiting unit are provided on the pressing plate, the limiting unit is used to limit the position of the tool tube, the positioning block is used to support the tool tube and limit the position of the inner tool sleeve, and the driving unit drives the outer screw sleeve and the inner tool sleeve to be pressed and assembled.

[0006] Preferably, the driving unit comprises a cylinder and a push plate, wherein the cylinder is fixed to the bottom of the pressing plate, the cylinder piston rod is fixedly connected to the push plate, a through slot is provided on the pressing plate, and the top of the push plate passes through the through slot and abuts against the outer screw sleeve.

[0007] Preferably, a groove is provided on the top of the push plate, the groove wall of the groove abuts against the outer wall of the knife tube, and the push plate abuts against the end of the outer screw sleeve on the side facing the positioning block.

[0008] Preferably, a positioning groove is provided on the positioning block, the groove wall of the positioning groove abuts against the outer wall of the knife tube, and the positioning block abuts against one end of the inner knife sleeve relative to the push plate.

[0009] Preferably, a switch is fixed on the bottom plate, and the switch controls the working state of the cylinder.

[0010] Preferably, the limiting unit includes a limiting plate and a positioning plate, the positioning plate and the limiting plate are respectively arranged at both ends of the pressing plate, the limiting plate is provided with a limiting groove, the positioning plate is provided with a positioning groove, and the two ends of the knife tube are respectively limited in the limiting groove and the positioning groove.

[0011] In summary, the utility model has achieved the following technical effects:

[0012] The utility model discloses a rotary cutting biopsy needle pressing tool, adopts a limiting unit to limit the knife tube, and adopts a driving unit to realize the pressing of the outer screw sleeve and the inner knife sleeve. It has a simple structure and is easy to operate, which greatly improves the pressing efficiency of the outer screw sleeve and the inner knife sleeve. In addition, the pressing distance between the inner knife sleeve and the outer screw sleeve is positioned by a positioning block, so as to ensure the pressing degree of the outer screw sleeve and the inner knife sleeve and improve the pressing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the rotary biopsy needle pressing tooling of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the rotary biopsy needle pressing tooling of the utility model;

[0015] Explanation of the reference numerals in the accompanying drawings in the specification: 1. Base plate; 2. Pressing plate; 3. Switch; 4. Cylinder; 5. Push plate; 6. Knife tube; 7. Inner knife sleeve; 8. Outer screw sleeve; 9. Limit plate; 10. Positioning block; 11. Positioning plate. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] Embodiment 1:

[0023] like Figure 1-2 As shown, a rotary biopsy needle pressing tool is used for pressing an outer screw sleeve and an inner knife sleeve, comprising a base plate 1 and a pressing plate 2, wherein the pressing plate 2 is fixed above the base plate 1, a driving unit is provided below the pressing plate 2, a positioning block 10 and a limiting unit are provided on the pressing plate 2, the limiting unit is used for limiting the position of the knife tube 6, the positioning block 10 is used for supporting the knife tube 6 and limiting the position of the inner knife sleeve 7, and the driving unit pushes the outer screw sleeve 8 and the inner knife sleeve 7 to be pressed and assembled.

[0024] The driving unit includes a cylinder 4 and a push plate 5. The cylinder 4 is fixed to the bottom of the pressing plate 2. The piston rod of the cylinder 4 is fixedly connected to the push plate 5. A through groove is provided on the pressing plate 2. The top of the push plate 5 passes through the through groove and abuts against the outer screw sleeve 8.

[0025] A groove is provided on the top of the push plate 5 , and the groove wall abuts against the outer wall of the knife tube 6 , and the push plate 5 abuts against the end of the outer screw sleeve 8 toward the side of the positioning block 10 .

[0026] The positioning block 10 is provided with a positioning groove, the groove wall of which abuts against the outer wall of the knife tube 6 , and the positioning block 10 abuts against one end of the inner knife sleeve 7 relative to the push plate 5 .

[0027] A switch 3 is fixed on the bottom plate 1 , and the switch 3 controls the working state of the cylinder 4 .

[0028] The limiting unit includes a limiting plate 9 and a positioning plate 11, which are respectively arranged at both ends of the pressing plate 2. The limiting plate 9 is provided with a limiting groove, and the positioning plate 11 is provided with a positioning groove. Both ends of the knife tube 6 are respectively limited in the limiting groove and the positioning groove.

[0029] Working principle: first, the outer screw sleeve 8 is sleeved on the knife tube 6 and against the inner knife sleeve 7, then the knife tube 6 is placed on the pressing plate 2, and the two ends of the knife tube 6 are respectively limited in the limit groove and the positioning groove, and the knife tube 6 is further limited in the groove and the positioning groove. At this time, the push plate 5 is against the outer screw sleeve 8, and the positioning block 10 is against the inner knife sleeve 7, and then the worker controls the cylinder 4 to work through the switch 3, pushes the push plate 5 to press the outer screw sleeve 8 into place onto the inner knife sleeve 7, after maintaining the pressure for a while, controls the cylinder 4 to drive the push plate 5 to reset, the worker removes the finished product, loads the next knife tube 6 to be pressed, and repeats the above operation.

[0030] The rotary cutting biopsy needle pressing tool of the present embodiment adopts a limiting unit to limit the knife tube 6, and adopts a driving unit to realize the pressing of the outer screw sleeve 8 and the inner knife sleeve 7. It has a simple structure and is easy to operate, which greatly improves the pressing efficiency of the outer screw sleeve 8 and the inner knife sleeve 7. In addition, the pressing distance between the inner knife sleeve 7 and the outer screw sleeve 8 is positioned by the positioning block 10, thereby ensuring the pressing degree of the outer screw sleeve 8 and the inner knife sleeve 7 and improving the pressing accuracy.

[0031] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A rotary biopsy needle pressing tool, used for pressing an outer screw sleeve and an inner cutter sleeve, characterized in that: It includes a base plate and a pressing plate, wherein the pressing plate is fixed above the base plate, a driving unit is provided below the pressing plate, a positioning block and a limiting unit are provided on the pressing plate, the limiting unit is used to limit the position of the tool tube, the positioning block is used to support the tool tube and limit the position of the inner tool sleeve, and the driving unit pushes the outer screw sleeve and the inner tool sleeve to press and assemble.

2. The rotary biopsy needle pressing tool according to claim 1, characterized in that: The driving unit comprises a cylinder and a push plate, wherein the cylinder is fixed to the bottom of the pressing plate, the cylinder piston rod is fixedly connected to the push plate, a through slot is arranged on the pressing plate, and the top of the push plate passes through the through slot and abuts against the outer screw sleeve.

3. The rotary biopsy needle pressing tool according to claim 2, characterized in that: The top of the push plate is provided with a groove, the groove wall of the groove abuts against the outer wall of the knife tube, and the push plate abuts against the end of the outer screw sleeve toward the side of the positioning block.

4. The rotary biopsy needle pressing tool according to claim 3, characterized in that: The positioning block is provided with a positioning groove, the groove wall of the positioning groove abuts against the outer wall of the knife tube, and the positioning block abuts against one end of the inner knife sleeve relative to the push plate.

5. The rotary biopsy needle pressing tool according to claim 1, characterized in that: A switch is fixed on the bottom plate, and the switch controls the working state of the cylinder.

6. The rotary biopsy needle pressing tool according to claim 1, characterized in that: The limiting unit includes a limiting plate and a positioning plate, the positioning plate and the limiting plate are respectively arranged at both ends of the pressing plate, the limiting plate is provided with a limiting groove, the positioning plate is provided with a positioning groove, and the two ends of the knife tube are respectively limited in the limiting groove and the positioning groove.

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