A positioning device

Abstract

The utility model relates to medical instrument technical field especially, and it is a kind of positioning device.The utility model discloses detachably installed on the probe clamping shell of medical diagnostic probe, and the one side of probe clamping shell is fixed with fixed strip, and fixed strip can make probe clamping shell stable clamping, and the one side of probe clamping shell away from fixed strip is fixed with guide rail, and the outside of guide rail is equipped with the first sliding slot, and the first sliding slot is slidably connected with positioning assembly;The utility model is through the structural design of positioning assembly, makes the device can accurately adjust the position of puncture point in the long axis direction of probe, and the setting of angle adjusting mechanism can adjust the inclination angle, and doctor can intuitively align the target shown on screen with puncture guide wire, improves the flexibility of positioning;The structure is stable after locking by the setting of knob locking, effectively avoids accidental shaking in puncture process, and by setting guide hole of different aperture, different thickness puncture needle can be compatible, increase the application range of device.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a positioning device. Background Technology

[0002] In modern clinical medicine, ultrasound-guided puncture techniques are widely used in various diagnostic and therapeutic procedures, such as liver biopsy, kidney puncture, tumor ablation, and catheter drainage. To improve the accuracy and safety of punctures, puncture positioning devices are usually used to assist doctors in the procedure. Existing puncture positioning devices are typically fixed directly to the ultrasound probe, providing a fixed or limitedly adjustable guide path for the puncture needle; however, these devices have some limitations.

[0003] For example, the positioning mechanism for ultrasound-guided medical interventional device puncture, with publication number CN209713077U, mainly relates to the field of puncture treatment positioning tools. This positioning mechanism for ultrasound-guided medical interventional device puncture includes an ultrasound probe, an integrally formed connecting part on one side of the ultrasound probe housing, a mounting bracket on the connecting part, a slide rail on the end of the mounting bracket away from the connecting part, a sliding sleeve on the slide rail, a connecting rod on the end of the sliding sleeve away from the connecting part, an angle adjustment disk on the connecting rod, a rotating disk pivotally connected to the angle adjustment disk, a positioning sleeve on one side of the rotating disk, and a cylindrical cavity at the center of the positioning sleeve for guiding the puncture needle.

[0004] In summary, the existing technology has the following technical problems: the positioning accuracy of the existing technology is limited, with only one or a few fixed puncture angles and positions. When the lesion is in a tricky location, the doctor needs to repeatedly adjust the position and posture of the entire probe to align with the target. The operation is cumbersome and time-consuming, which can easily lead to target deviation. The adjustment range is limited and cannot achieve rapid, intuitive and precise adjustment. Therefore, we propose a positioning device. Utility Model Content

[0005] The purpose of this invention is to provide a positioning device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A positioning device includes a probe clamping housing that can be detachably mounted on a medical diagnostic probe. A fixing strip is fixed to one side of the probe clamping housing to stably clamp the probe clamping housing. A guide rail is fixed to the side of the probe clamping housing away from the fixing strip. A first sliding groove is formed on the outer side of the guide rail. A positioning component is slidably connected in the first sliding groove. The positioning component enables more accurate positioning during puncture.

[0008] Preferably, the positioning component includes a first knob, a second slide groove, a sliding guide seat, and a screw hole. The second slide groove is provided through one side of the guide rail. The first slide groove is slidably connected to the sliding guide seat. A screw hole is provided on the side of the sliding guide seat near the second slide groove. A first knob is provided on one side of the sliding guide seat. The first knob is threadedly connected to the screw hole through the second slide groove. An angle adjustment mechanism is provided on the side of the sliding guide seat away from the guide rail. The angle adjustment mechanism can finely adjust the angle.

[0009] Preferably, the angle adjustment mechanism includes a second knob, a shaft, an arc-shaped groove, a turntable housing, a turntable guide block, a guide groove, and a fixing block. The second knob is threaded to the top of the side of the sliding guide seat away from the guide rail. The shaft is installed at the bottom of the same side of the sliding guide seat. The fixing block is rotatably connected to the outer side of the shaft. The turntable housing is fixed to the other side of the fixing block. An arc-shaped groove is formed on the top of the same side of the turntable housing. The turntable guide block is rotatably connected inside the arc-shaped groove. A guide groove is formed at the center of the turntable guide block. The second knob passes through the sliding guide seat and is slidably connected to the guide groove.

[0010] Preferably, a rotating wheel is rotatably connected inside the turntable housing, and the rotating wheel has multiple guide holes extending through it along the axial direction. Clamping screws are threaded into the guide holes, and a puncture needle is inserted into the center of the clamping screws. Anti-slip grooves are provided on the outer side of the rotating wheel.

[0011] Preferably, the bottom end of the turntable housing has an opening, which facilitates the rotation of the puncture needle. The inner side of the turntable housing has a first fixing groove, and the rotating wheel has a second fixing groove at a position corresponding to the first fixing groove. A bearing is provided between the first fixing groove and the second fixing groove.

[0012] Preferably, the clamping screw is shaped with a larger top and a smaller bottom, and has a clamping opening in the middle. The clamping screw has a certain degree of elasticity, and the clamping opening enables the clamping screw to clamp the puncture needle more stably.

[0013] Preferably, the guide hole is a through hole of different sizes, and the guide hole is designed to accommodate puncture needles of different sizes.

[0014] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0015] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0016] This invention, through the structural design of the positioning component, enables the device to precisely adjust the position of the puncture point along the long axis of the probe. The angle adjustment mechanism allows for quick adjustment of the tilt angle, allowing doctors to quickly and intuitively align the puncture guide line with the target displayed on the screen, greatly improving the flexibility and accuracy of positioning.

[0017] The device is locked with a knob, which stabilizes the structure and effectively prevents accidental shaking during puncture. The guide holes with different diameters can accommodate puncture needles of different thicknesses, increasing the applicability of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an enlarged schematic diagram of the positioning component of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the sliding guide seat and the turntable shell of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the clamping screw and the clamping jaw of this utility model.

[0023] Figure 5 This is a schematic diagram of the connection structure between the wheel and the bearing of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 100, probe clamping housing; 101, fixing strip; 200, guide rail; 201, first slide groove; 300, positioning assembly; 302, second slide groove; 303, sliding guide seat; 304, second knob; 305, shaft; 306, screw hole; 307, arc-shaped groove; 400, turntable housing; 401, turntable guide block; 402, guide groove; 403, fixing block; 404, rotating wheel; 405, guide hole; 406, clamping screw; 407, puncture needle; 408, anti-slip groove; 409, opening; 410, first fixing groove; 411, second fixing groove; 412, clamp; 413, bearing. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] Example 1

[0028] Reference Figure 1-3 A positioning device includes a probe clamping housing 100 detachably mounted on a medical diagnostic probe, facilitating assembly and disassembly with the probe and simplifying the use and storage of the device. A fixing strip 101 is fixed to one side of the probe clamping housing 100, ensuring stable clamping of the probe clamping housing 100. A guide rail 200 is fixed to the side of the probe clamping housing 100 away from the fixing strip 101. A first sliding groove 201 is provided on the outer side of the guide rail 200, within which a positioning component 300 is slidably connected. The positioning component 300 enables more accurate positioning during puncture. The first sliding groove 201 allows the positioning component 300 to slide along the guide rail 200, flexibly adjusting its position according to actual puncture needs, thereby improving the accuracy and effectiveness of the puncture operation.

[0029] The positioning component 300 includes a first knob 301, a second slide groove 302, a sliding guide seat 303, and a screw hole 306. The second slide groove 302 is provided through one side of the guide rail 200. The first slide groove 201 is slidably connected to the sliding guide seat 303. The screw hole 306 is provided on the side of the sliding guide seat 303 near the second slide groove 302. The first knob 301 is provided on one side of the sliding guide seat 303. The first knob 301 is threadedly connected to the screw hole 306 through the second slide groove 302, which can conveniently fix and adjust the position of the sliding guide seat 303 on the guide rail 200, so as to achieve precise control of the position of the positioning component. An angle adjustment mechanism is provided on the side of the sliding guide seat 303 away from the guide rail 200. The angle adjustment mechanism can finely adjust the angle.

[0030] The angle adjustment mechanism includes a second knob 304, a shaft 305, an arc-shaped groove 307, a turntable housing 400, a turntable guide block 401, a guide groove 402, and a fixing block 403. The second knob 304 is threaded to the top of the sliding guide seat 303 on the side away from the guide rail 200. The shaft 305 is mounted on the bottom of the sliding guide seat 303 on the same side. The fixing block 403 is rotatably connected to the outer side of the shaft 305. The turntable housing 400 is fixed to the other side of the fixing block 403. An arc-shaped groove 307 is provided on the top side of the outer shell 400. The inside of the arc-shaped groove 307 is rotatably connected to the turntable guide block 401. A guide groove 402 is provided in the center of the turntable guide block 401. The second knob 304 passes through the sliding guide seat 303 and is slidably connected to the guide groove 402. The turntable outer shell 400 rotates around the shaft 305, realizing the fine adjustment of the puncture angle, meeting the precise angle requirements of different patients and different puncture sites, and improving the success rate and safety of puncture operation.

[0031] Example 2

[0032] Further optimizations to Example 1, specifically, such as... Figure 4-5 As shown, a rotating wheel 404 is rotatably connected inside the turntable housing 400. Multiple guide holes 405 are opened through the rotating wheel 404 along the axial direction. Clamping screws 406 are connected to the guide holes 405 by internal threads. A puncture needle 407 is inserted into the center of the clamping screw 406. Anti-slip grooves 408 are provided on the outer side of the rotating wheel 404. By rotating the rotating wheel 404, different guide holes 405 can be selected and different sizes of puncture needles 407 can be switched.

[0033] An opening 409 is provided at the bottom of the turntable housing 400. The opening 409 facilitates the rotation of the puncture needle 407. A rotation limit block is installed inside the opening 409. Pushing the push button connected to the limit block can limit the rotation of the puncture needle 407. A first fixing groove 410 is provided inside the turntable housing 400. A second fixing groove 411 is provided at the position corresponding to the first fixing groove 410 on the rotating wheel 404. A bearing 413 is provided between the first fixing groove 410 and the second fixing groove 411 to ensure that the rotating wheel 404 can rotate stably inside the turntable housing 400, reduce friction and wear during rotation, and also stabilize the rotating wheel 404 so that the rotating wheel 404 will not easily fall off.

[0034] The clamping screw 406 is shaped with a larger top and a smaller bottom. A clamping opening 412 is provided in the middle of the clamping screw 406. The clamping screw 406 has a certain degree of elasticity. The clamping opening 412 enables the clamping screw 406 to clamp the puncture needle 407 more stably, preventing the puncture needle from shaking or shifting during puncture, thus improving the accuracy and safety of puncture.

[0035] The guide hole 405 is a through hole of different sizes. The design of the guide hole 405 makes it easy to adapt to puncture needles 407 of different models and sizes, so that the positioning device has a wider range of applicability and can meet the needs of different puncture surgeries for different specifications of puncture needles, thus improving the versatility and practicality of the device.

[0036] In summary:

[0037] This utility model addresses the technical problem that existing technologies have limited positioning accuracy, offering only one or a few fixed puncture angles and positions. When the lesion is in a difficult location, the doctor needs to repeatedly adjust the position and posture of the entire probe to align with the target, which is cumbersome and time-consuming, easily leading to target deviation. Furthermore, the adjustment range is limited, failing to achieve rapid, intuitive, and precise adjustments. The present invention employs the technical solutions described in the above embodiments. The implementation process of the above technical solutions is as follows:

[0038] The probe clamp housing 100 is installed on the medical diagnostic probe and secured using the fixing strip 101. According to the puncture requirements, the position of the sliding guide seat 303 on the guide rail 200 is adjusted by rotating the first knob 301 to determine the approximate puncture location. Then, the second knob 304 is rotated to finely adjust the angle of the turntable housing 400 to determine the puncture angle. The appropriate guide hole 405 is selected by rotating the wheel 404, and after the puncture needle 407 is installed, the puncture operation can be performed.

[0039] With the above-mentioned settings, this application will certainly solve the above-mentioned technical problems, and at the same time achieve the following technical effects:

[0040] This invention, through the structural design of the positioning component, enables the device to precisely adjust the position of the puncture point along the long axis of the probe. The angle adjustment mechanism allows for quick adjustment of the tilt angle, allowing doctors to quickly and intuitively align the puncture guide line with the target displayed on the screen, greatly improving the flexibility and accuracy of positioning.

[0041] The device is locked with a knob, which stabilizes the structure and effectively prevents accidental shaking during puncture. The guide holes with different diameters can accommodate puncture needles of different thicknesses, increasing the applicability of the device.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A positioning device, characterized in that, The device includes a probe clamping housing (100) that can be detachably mounted on a medical diagnostic probe. A fixing strip (101) is fixed to one side of the probe clamping housing (100), which can stably clamp the probe clamping housing (100). A guide rail (200) is fixed to the side of the probe clamping housing (100) away from the fixing strip (101). A first sliding groove (201) is provided on the outer side of the guide rail (200). A positioning component (300) is slidably connected in the first sliding groove (201), which can make the positioning more accurate during puncture.

2. The positioning device according to claim 1, characterized in that, The positioning component (300) includes a first knob (301), a second slide groove (302), a sliding guide seat (303), and a screw hole (306). The second slide groove (302) is provided through one side of the guide rail (200). The first slide groove (201) is slidably connected to the sliding guide seat (303). The screw hole (306) is provided on the side of the sliding guide seat (303) near the second slide groove (302). The first knob (301) is provided on one side of the sliding guide seat (303). The first knob (301) is threadedly connected to the screw hole (306) through the second slide groove (302). An angle adjustment mechanism is provided on the side of the sliding guide seat (303) away from the guide rail (200). The angle adjustment mechanism can finely adjust the angle.

3. A positioning device according to claim 2, characterized in that, The angle adjustment mechanism includes a second knob (304), a shaft (305), an arc-shaped groove (307), a turntable housing (400), a turntable guide block (401), a guide groove (402), and a fixing block (403). The second knob (304) is threadedly connected to the top of the side of the sliding guide seat (303) away from the guide rail (200). The shaft (305) is installed at the bottom of the same side of the sliding guide seat (303). The outer side of the shaft (305) rotates... A connecting fixing block (403) is provided, and a turntable shell (400) is fixed on the other side of the fixing block (403). An arc-shaped groove (307) is provided on the top of the same side of the turntable shell (400). The turntable guide block (401) is rotatably connected inside the arc-shaped groove (307). A guide groove (402) is provided in the center of the turntable guide block (401). The second knob (304) passes through the sliding guide seat (303) and is slidably connected to the guide groove (402).

4. A positioning device according to claim 3, characterized in that, The turntable housing (400) is rotatably connected to a turntable wheel (404). The turntable wheel (404) has multiple guide holes (405) through it along the axial direction. The guide holes (405) are threaded with clamping screws (406). A puncture needle (407) is inserted into the center of the clamping screws (406). The turntable wheel (404) is provided with anti-slip grooves (408) on the outer side.

5. A positioning device according to claim 4, characterized in that, The turntable housing (400) has an opening (409) at its bottom end, which facilitates the rotation of the puncture needle (407). The turntable housing (400) has a first fixing groove (410) on its inner side, and the turntable (404) has a second fixing groove (411) at the position corresponding to the first fixing groove (410). A bearing (413) is provided between the first fixing groove (410) and the second fixing groove (411).

6. A positioning device according to claim 4, characterized in that, The clamping screw (406) is shaped with a larger top and a smaller bottom. A clamping slot (412) is provided in the middle of the clamping screw (406). The clamping screw (406) has a certain elasticity. The clamping slot (412) enables the clamping screw (406) to clamp the puncture needle (407) more stably.

7. A positioning device according to claim 4, characterized in that, The guide hole (405) is a through hole of different sizes. The guide hole (405) is designed to accommodate puncture needles (407) of different sizes.

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