Puncture needle guiding device

Abstract

The utility model particularly relates to the field of medical equipment, and discloses a puncture needle guiding device which comprises a base, a first notch is formed in the middle of the base, a limiting block is connected in the first notch in a sliding mode, the limiting block is in an inverted-T shape and is matched with the first notch in internal size, and a second notch is formed in the middle of the base. A support is fixedly connected to the top end of the limiting block, a tray is fixedly connected to the top end of the support, a reference ruler is installed at the top end of the tray, an angle measuring ruler is hinged to the end of the reference ruler, and a guide ruler is fixedly connected to the side wall of the angle measuring ruler. By arranging the limiting block, the threaded lead screw, the lead screw sliding table and the driving motor, the limiting block is matched with the inner size of the first notch in an inverted-T shape, the moving stability of the limiting block is improved, the threaded lead screw can be driven to rotate by starting the driving motor, and therefore the horizontal position of the limiting block is changed, and the convenience of horizontal adjustment of the support is improved; and the workload of adjusting the bracket by medical staff is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment, and in particular relates to a puncture needle guiding device. Background Art

[0002] When a tumor lesion occurs inside the human body, it has become an important technical means to accurately puncture the lesion with a needle-like instrument for biopsy or treatment under the guidance of CT scan images. First, the lesion and its surrounding tissue structure are displayed through a CT scan cross-sectional image, the lesion puncture level and the lesion puncture endpoint are determined, and a suitable needle insertion site is selected on the skin surface at this level. The two points are connected to determine the needle insertion route and depth; on this basis, the horizontal or vertical line of the body surface is used as the reference line to measure the puncture angle where the reference line and the needle insertion route intersect; after the puncture point, puncture angle, and puncture depth are determined, the needle-like instrument is passed through the skin through the tissue to the predetermined lesion puncture endpoint to achieve the diagnosis and treatment goals of the disease. Although the operator can accurately plan the needle insertion route, angle, and depth on the CT scan image, due to the limitations of current technical conditions, the puncture process cannot be guided in real time. Instead, it is necessary to remove the patient from the CT scanner and determine a general needle insertion direction in vitro with reference to the screen image, and re-scan the CT scan after the puncture to confirm it.

[0003] Existing technical solutions, such as announcement number: CN 217793267 U, discloses a puncture needle guiding device, including a base, a reference ruler, a guide ruler and a bracket, the base includes a body, a first slider and a second slider, the first slider slides with the body in a first direction, and the second slider slides with the body in a second direction; the guide ruler is hinged with the reference ruler, and has a first state of relative rotation and a second state of relative fixation, and the guide ruler is used to slide with the puncture needle along the length direction of the guide ruler; one end of the bracket is simultaneously penetrated by the first slider and the second slider, the bracket and the first slider have two states of relative sliding and relative fixation in the second direction, the bracket and the second slider have two states of relative sliding and relative fixation in the first direction, the other end of the bracket is fixedly connected to the reference ruler, and the reference ruler can adjust its relative angle with the body through the deformation of the bracket. The device has a strong position adjustment capability and can meet the puncture diagnosis and treatment of patients in different environments.

[0004] The above technical solution has the following technical problems: when using this type of puncture needle guiding device, medical staff are required to manually adjust the bracket to change the position of the puncture needle, thereby increasing the burden on medical staff during the puncture process. Utility Model Content

[0005] The utility model provides a puncture needle guiding device, aiming to solve the problem that when using the puncture needle guiding device, medical staff need to manually adjust a bracket to change the position of the puncture needle, thereby increasing the burden on the medical staff.

[0006] The utility model is implemented as follows: a puncture needle guiding device comprises a base, a slot one is provided at the middle position of the base, a limiting block is slidably connected inside the slot one, the limiting block is convex in shape and matches the internal size of the slot one, the top of the limiting block is fixedly connected to a bracket, the top of the bracket is fixedly connected to a tray, the top of the tray is installed with a reference ruler, the end of the reference ruler is hinged with a protractor, the side wall of the protractor is fixedly connected with a guide ruler, the inside of the guide ruler is plugged with a puncture needle, the side wall of the base is fixedly connected with a driving motor, the output end of the driving motor passes through the base and is fixedly connected with a threaded screw, the side wall of the limiting block close to the threaded screw is rotatably connected with a screw slide, and the screw slide is threadedly connected to the outer surface of the threaded screw.

[0007] Preferably, a protective pad is fixedly connected to the side wall of the base away from the slot 1, and the protective pad is made of silicone material, thereby improving the stability of the base placement.

[0008] Preferably, a second slot is provided at a surface position of the tray close to the reference ruler, and two electric slide rails are symmetrically mounted on two inner side walls of the second slot.

[0009] Preferably, a slider is fixedly provided at the bottom end of the reference ruler close to the electric slide rail, and the outer width of the slider is adapted to the distance between the two electric slide rails, thereby improving the efficiency of the lateral movement of the reference ruler.

[0010] Preferably, the side walls of the second notch, the reference ruler and the protractor are all engraved with scale lines to facilitate observation by medical staff.

[0011] Preferably, the other end of the threaded screw passes through the limit block and is rotatably connected to the side wall of the base via a bearing, thereby improving the rotation stability of the threaded screw.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] Firstly, by setting a limit block, a threaded screw, a screw slide and a driving motor, the limit block is in a convex shape and matched with the internal size of the slot one, thereby improving the stability of the movement of the limit block. By starting the driving motor, the threaded screw can be driven to rotate, thereby changing the horizontal position of the limit block, improving the convenience of horizontal adjustment of the bracket, and reducing the workload of medical staff in adjusting the bracket; secondly, by setting an electric slide rail and a slider, the external size of the slider is matched with the internal size of the electric slide rail, and by starting the electric slide rail, the slider can be driven to move laterally, thereby improving the convenience of lateral adjustment of the puncture needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0015] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the limit block structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the reference ruler of the utility model.

[0018] The accompanying drawings are marked as follows: 1. base; 2. slot one; 3. limit block; 4. bracket; 5. tray; 6. slot two; 7. reference ruler; 8. protractor; 9. guide ruler; 10. puncture needle; 11. threaded screw; 12. screw slide; 13. drive motor; 14. protective pad; 15. electric slide rail; 16. slider. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] See also Figure 1-Figure 4The embodiment of the utility model provides: a puncture needle guiding device, including a base 1, the base 1 is made of stainless steel and is used to support and limit, a protective pad 14 is fixedly connected to the side wall of the base 1 away from the slot 2, the protective pad 14 is made of silicone material, which improves the stability of the base 1, a slot 2 is opened in the middle position of the base 1, the inner sliding connection of the slot 2 is a limited block 3, the limit block 3 is convex and adapted to the inner size of the slot 2, the top of the limit block 3 is fixedly connected to a bracket 4, the top of the bracket 4 is fixedly connected to a tray 5, the top of the tray 5 is installed with a reference ruler 7, the end of the reference ruler 7 is hinged with a protractor 8, the side wall of the protractor 8 is fixedly connected with a guide ruler 9, the inside of the guide ruler 9 is plugged with a puncture needle 10, the side walls of the slot 2 6, the reference ruler 7 and the protractor 8 are all engraved with scale lines, which is convenient for medical staff to observe A driving motor 13 is fixedly connected to the side wall of the base 1, and the output end of the driving motor 13 passes through the base 1 and is fixedly connected to a threaded screw 11. The other end of the threaded screw 11 passes through a limit block 3 and is rotatably connected to the side wall of the base 1 through a bearing, thereby improving the rotation stability of the threaded screw 11. The limit block 3 is rotatably connected to a screw slide 12 on the side wall close to the threaded screw 11. The screw slide 12 is threadedly connected to the outer surface of the threaded screw 11. By starting the driving motor 13, the threaded screw 11 can be driven to rotate. The rotation of the threaded screw 11 drives the screw slide 12 to rotate, thereby driving the limit block 3 to move. The limit block 3 is in a convex shape and is adapted to the internal size of the slot 2, thereby improving the stability of the movement of the limit block 3, thereby driving the bracket 4 to follow the limit block 3, improving the convenience of horizontal adjustment of the bracket 4, and reducing the workload of medical staff in adjusting the bracket 4.

[0022] A second slot 6 is provided at a surface position of the tray 5 near the reference ruler 7, and two electric slide rails 15 are symmetrically mounted on the two inner side walls of the second slot 6 by bolts. A slider 16 is fixedly provided at the bottom of the reference ruler 7 near the electric slide rail 15, and the outer width of the slider 16 is adapted to the distance between the two electric slide rails 15. By starting the electric slide rail 15, the slider 16 can be driven to move along the second slot 6, thereby improving the efficiency of the lateral movement of the reference ruler 7, thereby changing the lateral position of the puncture needle 10.

[0023] Working principle: When using this puncture needle guiding device, the operator first connects an external power supply. The protective pad 14 is made of silicone material, is soft in texture and has good adsorption. The protective pad 14 is placed on the patient's skin to improve the stability of the base 1, thereby realizing the placement of the base 1. The model of the driving motor 13 is JZD3657A. By starting the driving motor 13, the threaded screw 11 can be driven to rotate. The rotation of the threaded screw 11 drives the screw slide 12 to rotate, thereby driving the limit block 3 to move. The limit block 3 is convex in shape and is compatible with the internal size of the slot 2, which improves the stability of the movement of the limit block 3, thereby driving the bracket 4 to follow the limit block 3, and improving the convenience of horizontal adjustment of the bracket 4. , reducing the workload of medical staff in adjusting the bracket 4, thereby changing the horizontal position of the puncture needle 10, and the angle of the guide ruler 9 can be adjusted by rotating the protractor 8. Secondly, the external size of the slider 16 is adapted to the internal size of the electric slide rail 15. By starting the electric slide rail 15, the slider 16 can be driven to move laterally, thereby improving the convenience of lateral adjustment of the puncture needle 10. When the guide ruler 9 is adjusted to an appropriate position and angle, the medical staff applies a thrust to the end of the puncture needle 10, thereby inserting the other end of the puncture needle 10 into the patient's skin. By coordinating with the CT image, the other end of the puncture needle 10 is inserted into the patient's lesion to achieve puncture. CT is a prior art and will not be described in detail here.

[0024] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0025] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0026] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0027] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A puncture needle guiding device, characterized in that: The invention comprises a base (1): a notch (2) is provided at the middle position of the base (1); a limit block (3) is slidably connected to the inside of the notch (2); the limit block (3) is in a convex shape and matches the internal size of the notch (2); the top of the limit block (3) is fixedly connected to a bracket (4); the top of the bracket (4) is fixedly connected to a tray (5); the top of the tray (5) is installed with a reference ruler (7); the end of the reference ruler (7) is hinged with a protractor (8); a guide ruler (9) is fixedly connected to the side wall of the protractor (8); a puncture needle (10) is inserted into the inside of the guide ruler (9); A drive motor (13) is fixedly connected to the side wall of the base (1); an output end of the drive motor (13) passes through the base (1) and is fixedly connected to a threaded screw (11); a screw slide (12) is rotatably connected to the side wall of the limit block (3) close to the threaded screw (11); and the screw slide (12) is threadedly connected to the outer surface of the threaded screw (11).

2. A puncture needle guiding device according to claim 1, characterized in that: A protective pad (14) is fixedly connected to the side wall of the base (1) away from the slot one (2), and the protective pad (14) is made of silicone.

3. A puncture needle guiding device according to claim 1, characterized in that: A second slot (6) is provided at a surface position of the tray (5) close to the reference ruler (7), and two electric slide rails (15) are symmetrically mounted on two inner side walls of the second slot (6).

4. A puncture needle guiding device according to claim 3, characterized in that: A slider (16) is fixedly provided at the bottom of the reference ruler (7) close to the electric slide rail (15); the outer width of the slider (16) is adapted to the distance between the two electric slide rails (15).

5. A puncture needle guiding device according to claim 3, characterized in that: The side walls of the second notch (6), the reference ruler (7) and the protractor (8) are all engraved with scale lines.

6. A puncture needle guiding device according to claim 1, characterized in that: The other end of the threaded screw (11) passes through the limit block (3) and is rotatably connected to the side wall of the base (1) via a bearing.

Images