Mammary gland positioning device capable of repeatedly positioning
By designing a repeatable breast positioning device with a handle and moving components, the problem of requiring two hands to operate, which affects positioning accuracy, has been solved in the existing technology. This enables single-handed operation and repeatable positioning of the positioning wire, improving the accuracy and safety of breast lesion positioning.
Patent Information
- Application Number
- CN202423128218.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Current breast localization needles require two-handed operation, which affects the accuracy of the localization wire and makes it difficult to repeat localization, thus increasing surgical risks.
A repeatable breast positioning device was designed, comprising a handle, a puncture needle, and a moving component. It enables one-handed operation through a push-pull button and a sliding groove structure, allowing the positioning wire to be retracted and repositioned, thereby improving positioning accuracy.
It enables single-handed release and retraction of the positioning wire, improving positioning accuracy and ease of operation, and reducing surgical risks.
Smart Images
Figure CN223799819U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to breast positioning device technical field, concretely is a breast positioning device of repeatable positioning. BACKGROUND
[0002] With the popularization of various breast screening technologies and the continuous improvement of people's cancer prevention awareness, the detection rate of breast lesions has increased significantly. For small lesion occupants, using breast positioning needles can accurately position and lock the lesions, which can effectively improve the success rate of surgery. The breast puncture positioning needles currently used in clinical practice are basically products that cannot be repositioned. If there is a mistake in CT judgment or a medical operation error, only surgery can be used to remove the needle, and the needle cannot be retracted and repositioned, which can cause significant harm to the patient.
[0003] At present, in the prior art, most of the positioning needles used in clinical practice need to be operated with both hands, one hand fixes the puncture guide needle, and the other hand pushes the positioning wire inside the puncture guide needle to the needle tip. Not only is it inconvenient to operate, but it also affects the positioning accuracy of the positioning wire, so a breast positioning device that can be repositioned is proposed to solve the above problems. UTILITY MODEL CONTENT
[0004] In view of the shortcomings of the prior art, the utility model provides a breast positioning device that can be repositioned, which has the advantage of being able to be repositioned, and solves the problem that most of the positioning needles used in clinical practice need to be operated with both hands, one hand fixes the puncture guide needle, and the other hand pushes the positioning wire inside the puncture guide needle to the needle tip. Not only is it inconvenient to operate, but it also affects the positioning accuracy of the positioning wire.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a breast positioning device that can be repositioned, comprising a handle, the handle is provided with a puncture needle, the puncture needle is provided with a positioning wire, the handle is internally provided with a moving assembly;
[0006] The handle comprises a handle front shell and a handle rear shell, one end of the puncture needle is provided with a needle tip, the inner wall of the handle front shell is fixedly installed with two symmetrically distributed sliding rails, the moving assembly comprises a sleeve and a mandrel, the front end of the sleeve is fixedly connected with a spring piece, the inner wall of the sleeve is fixedly installed with two convex points, the mandrel is fixedly installed with a boss, one end of the mandrel inside the sleeve is symmetrically installed with two pressing pieces, and the outer part of the mandrel is fixedly installed with a push-pull button.
[0007] Further, the positioning wire comprises a straight wire and a positioning hook, one end of the straight wire penetrates the puncture needle and the moving assembly in sequence.
[0008] Further, the handle front shell and the handle rear shell are assembled to form a complete handle, the handle front shell is provided with a moving sliding groove radially parallel to the handle, a first release sliding groove perpendicular to the moving sliding groove and a second release sliding groove, and the puncture needle is fixedly connected with the handle front shell.
[0009] Further, the sleeve is a hollow tubular structure, the sleeve is provided with two grooves matched with the two sliding rails for sliding respectively, the elastic sheet is an integral structure with the sleeve, and the elastic sheet is provided with a window matched with the boss.
[0010] Further, one end of the mandrel penetrates and extends to the inside of the sleeve, the outer side surfaces of the two pressing sheets are circular arc surfaces with gradually changed diameters, and one end of the push-pull knob penetrates the moving sliding groove and extends to the outside of the handle front shell.
[0011] Further, the positioning wire is a memory alloy wire with an outer diameter of 0.2-0.4 mm, the straight wire is provided with three positioning marks, the three positioning marks are equidistantly distributed with a spacing of 1 cm, and the positioning hook is straightened to enter the inside of the puncture needle.
[0012] Compared with the prior art, the technical scheme has the following beneficial effects:
[0013] The breast positioning device with repeated positioning function is provided with the moving assembly, so that after the positioning wire is released, if the positioning position needs to be adjusted, the positioning wire can be pulled back into the puncture needle, then the position of the puncture needle tip is adjusted, the positioning wire is released again to complete the adjustment, the operation convenience is improved, the release and pulling back operation of the positioning wire can be completed by one hand, and therefore the practicality of the breast positioning device with repeated positioning function is enhanced. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of the utility model;
[0015] Figure 2 It is a structural schematic view of the handle front shell of the utility model;
[0016] Figure 3 It is a structural schematic view of the moving assembly of the utility model;
[0017] Figure 4 It is a structural schematic view of the shaft core of the utility model
[0018] Figure 5 It is a structural schematic view of the sleeve of the utility model;
[0019] Figure 6 It is a structural schematic view of the end surface of the sleeve of the utility model;
[0020] Figure 7 It is a structural schematic view of the sleeve and the shaft core of the utility model
[0021] Figure 8 The utility model structural positioning wire's schematic view.
[0022] In the drawing: 1, handle;11, handle front shell;12, handle rear shell;114, slide rail;2, puncture needle;3, positioning wire;31, straight wire;32, positioning hook;4, moving assembly;41, sleeve;412, elastic sheet;414, convex point;42, mandrel;421, boss;422, pressing sheet;423, push-pull button. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0024] Please refer to Figures 1 to 8 The breast positioning device can be repeatedly positioned, and comprises a handle 1, a puncture needle 2 arranged on the handle 1, a positioning wire 3 arranged on the puncture needle 2, and a moving assembly 4 arranged in the handle 1.
[0025] Embodiment one: please refer to Figures 1 to 8 In the example, the handle 1 comprises a handle front shell 11 and a handle rear shell 12, the handle front shell 11 and the handle rear shell 12 are assembled to form the complete handle 1, the handle front shell 11 is provided with a moving sliding groove radially parallel to the handle 1, a first release sliding groove perpendicular to the moving sliding groove and a second release sliding groove, the puncture needle 2 is fixedly connected with the handle front shell 11, one end of the puncture needle 2 is provided with a needle tip, the inner wall of the handle front shell 11 is fixedly installed with two symmetrically distributed slide rails 114, the moving assembly 4 comprises a sleeve 41 and a mandrel 42, the front end of the sleeve 41 is fixedly connected with an elastic sheet 412, the inner wall of the sleeve 41 is fixedly installed with two convex points 414, the mandrel 42 is fixedly installed with a boss 421, one end of the mandrel 42 inside the sleeve 41 is symmetrically installed with two pressing sheets 422, and the outer part of the mandrel 42 is fixedly installed with a push-pull button 423.
[0026] The sleeve 41 is a hollow tubular structure, two grooves are arranged on the sleeve 41 and are matched with the two slide rails 114 to slide, the elastic sheet 412 is an integral structure with the sleeve 41, a window is arranged on the elastic sheet 412 and is matched with the boss 421, the window on the elastic sheet 412 is used to clamp the boss 421, and the position is fixed.
[0027] Need to explain, the mandrel 42 one end through and extend to the inside of the sleeve 41, two tablet 422 outside diameter gradually changing circular surface, the push-pull button 423 one end through the moving slot and extend to the outside of the handle front shell 11, convenient to limit the sliding track and rotation track of the push-pull button 423.
[0028] In addition, the unique structure design allows the positioning to be adjusted twice or multiple times during the operation according to the actual situation, such as when the lesion position is found to be deviated from the preoperative assessment, or the positioning accuracy is affected by factors such as patient position change, the push-pull button 423 and the moving assembly 4 can be conveniently operated to reposition.
[0029] The above technical scheme, the unique structure design allows the positioning to be adjusted twice or multiple times during the operation according to the actual situation, such as when the lesion position is found to be deviated from the preoperative assessment, or the positioning accuracy is affected by factors such as patient position change, the push-pull button 423 and the moving assembly 4 can be conveniently operated to reposition, the operation of the device is relatively simple, the doctor only needs to push, rotate and pull the push-pull button 423, to realize the locking and unlocking of the positioning wire 3, the moving slot, the first release slot and the second release slot on the handle front shell 11 provide a clear path and limit for the operation of the push-pull button 423, making the operation more intuitive and convenient.
[0030] Embodiment two: please refer to Figures 1 to 8 In this example, the positioning wire 3 includes a straight wire 31 and a positioning hook 32, one end of the straight wire 31 passes through the puncture needle 2 and the moving assembly 4 in turn, the positioning wire 3 is a 0.2-0.4mm diameter memory alloy wire, the straight wire 31 is provided with three positioning marks, the three positioning marks are equally spaced at an interval of one centimeter, the positioning hook 32 is straightened and enters the inside of the puncture needle 2.
[0031] The above technical scheme, through the cooperation of the puncture needle 2 and the positioning wire 3 on the handle 1, the positioning wire 3 can be accurately placed at the breast lesion site or the predetermined position, so that the depth of the puncture needle 2 can be accurately adjusted and locked, effectively improving the positioning accuracy, reducing the surgical risk and adverse consequences caused by positioning errors.
[0032] The working principle of the above embodiment is:
[0033] The repositionable breast positioning device, in use, under image guidance, punctures the puncture needle 2 to the predetermined position, rotates the push-pull knob 423 from the first release slot to the moving slot, at this time, the two pressing pieces 422 clamp the positioning wire 3 due to the extrusion of the convex point 414, at this time, the positioning wire 3 is locked on the moving assembly 4, pushes the push-pull knob 423 forward along the moving slot, the positioning wire 3 moves forward so that the positioning hook 32 extends from the needle tip of the puncture needle 2 and restores to the original shape to complete positioning, at this time, rotate the push-pull knob 423 from the moving slot to the second release slot, the extrusion of the convex point 414 on the pressing piece 422 gradually disappears, the pressing piece 422 is opened, the positioning wire 3 is unlocked from the moving assembly 4, if the puncture needle 2 is withdrawn from the body at this time, the positioning wire 3 will be left in the original position.
[0034] If repositioning is needed, rotate the push-pull knob 423 from the second release slot to the moving slot, the two pressing pieces 422 clamp the positioning wire 3, push the push-pull knob 423 backward along the moving slot, the positioning wire 3 moves backward so that the positioning hook 32 is withdrawn into the puncture needle 2.
[0035] It is to be noted that the relative terms such as first and second, and the like are used herein solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.
[0036] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the changes in the embodiments, the substitutions, the replacements and the modifications can be made by those skilled in the art without departing from the principles and the spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A repositionable breast positioning device comprising a handle (1), characterised in that: The handle (1) is provided with a puncture needle (2), the puncture needle (2) is provided with a positioning wire (3), and the handle (1) is internally provided with a moving assembly (4); The handle (1) comprises a handle front shell (11) and a handle rear shell (12), one end of the puncture needle (2) is provided with a needle tip, the inner wall of the handle front shell (11) is fixedly installed with two symmetrically distributed sliding rails (114), the moving assembly (4) comprises a sleeve (41) and a mandrel (42), the front end of the sleeve (41) is fixedly connected with a spring piece (412), the inner wall of the sleeve (41) is fixedly installed with two convex points (414), the mandrel (42) is fixedly installed with a boss (421), and two pressing pieces (422) are symmetrically installed at one end of the mandrel (42) in the sleeve (41); and the outer portion of the mandrel (42) is fixedly installed with a push-pull button (423).
2. A repositionable breast positioning device according to claim 1, wherein: The positioning wire (3) comprises a straight wire (31) and a positioning hook (32), one end of the straight wire (31) penetrates the puncture needle (2) and the moving assembly (4) in sequence.
3. A repositionable breast positioning device according to claim 1, wherein: The handle front shell (11) and the handle rear shell (12) are assembled to form a complete handle (1), the handle front shell (11) is provided with a moving sliding groove radially parallel to the handle (1), a first release sliding groove perpendicular to the moving sliding groove and a second release sliding groove, and the puncture needle (2) is fixedly connected with the handle front shell (11).
4. The repositionable breast positioning device of claim 1, wherein: The sleeve (41) is a hollow tubular structure, two grooves are formed in the sleeve (41) and are matched with the two sliding rails (114) to slide, the spring piece (412) is an integral structure with the sleeve (41), and the spring piece (412) is provided with a window matched with the boss (421).
5. A repositionable breast positioning device according to claim 3, wherein: One end of the mandrel (42) penetrates and extends into the inside of the sleeve (41), the outer sides of the two pressing pieces (422) are circular arc surfaces with gradually changed diameters, and one end of the push-pull button (423) penetrates the moving sliding groove and extends to the outside of the handle front shell (11).
6. A repositionable breast positioning device according to claim 2, wherein: The positioning wire (3) is a memory alloy wire with an outer diameter of 0.2-0.4 mm, the straight wire (31) is provided with three positioning marks, the three positioning marks are equidistantly distributed at an interval of one centimeter, and the positioning hook (32) is straightened and enters the inside of the puncture needle (2).