Integrated positioning guide frame
By designing an integrated positioning guide frame and using longitudinal and transverse buffers to cushion the movement of the puncture needle, the problem of puncture needle deviation during patient breathing movement is solved, and the puncture accuracy and stability are improved.
Patent Information
- Application Number
- CN202521695911.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-11
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2035-08-11
AI Technical Summary
When the patient breathes and moves, the puncture needle of the existing ultrasound-guided puncture device easily deviates from the predetermined direction, resulting in a decrease in puncture accuracy.
An integrated positioning guide frame is designed, which includes a mounting frame, an adjustment component, a buffer component and a guide frame. Longitudinal and transverse buffers are used to cushion the movement of the puncture needle to prevent the patient's pulling force from changing the puncture angle.
It effectively prevents the puncture needle from deviating from the predetermined direction during the patient's breathing movement, thereby improving the accuracy and stability of puncture.
Smart Images
Figure CN223350295U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of puncture guide devices, and particularly relates to an integrated positioning guide frame. Background Art
[0002] Ultrasound-guided biopsy is a minimally invasive diagnostic technique that involves puncturing tumors or solid organs under the monitoring and guidance of real-time ultrasound images. Ultrasound imaging clearly displays the location, size, and surrounding vascular distribution of the lesion, guiding the needle away from vital structures and precisely accessing the target tissue. It can accurately diagnose diseases at the pathological and even genetic levels, providing a basis for developing personalized, scientific treatment plans.
[0003] Ultrasound-guided puncture devices use an ultrasound probe equipped with a puncture stand to support and secure the puncture needle, allowing puncture to be performed under the guidance of the ultrasound instrument. Compared to manual puncture, the puncture process guided by the puncture stand allows the puncture needle to follow the guide line set by the ultrasound device and accurately reach the puncture target through observation on the ultrasound monitor.
[0004] During ultrasound-guided puncture of the chest or abdomen, the patient's skin and muscles constantly move with breathing. Currently used ultrasound probes with puncture guides can only guide the puncture needle at a fixed angle. The patient's breathing, which causes skin and muscle movement, can constantly pull on the puncture needle, causing it to deviate from the puncture direction. Utility Model Content
[0005] In response to the above problems, the present application discloses an integrated positioning guide frame.
[0006] An integrated positioning guide frame, which includes a mounting frame, an adjustment assembly, a buffer assembly, and a guide frame; the buffer assembly includes a buffer slot, a slide rail, a buffer block, a longitudinal buffer and a transverse buffer; one end of the adjustment assembly is connected to the mounting frame, and the other end is fixedly connected to the buffer slot; the slide rail and the longitudinal buffer are both located inside the buffer slot; one end of the buffer block is inserted into the interior of the buffer slot and then slidably connected to the slide rail; the longitudinal buffer is located on both sides of the buffer block; one end of the longitudinal buffer abuts the buffer block, and the other end abuts the inner wall of the buffer slot; a moving slot is provided at the end of the buffer block away from the buffer slot; one end of the guide frame is inserted into the interior of the moving slot; the transverse buffer is located between the guide frame and the inner wall of the moving slot.
[0007] Furthermore, one end of the buffer block away from the buffer slot is detachably connected to a latch; the latch is inserted into the motion slot and then passes through the guide frame.
[0008] Furthermore, the guide frame includes a guide tube and a connecting piece; the connecting piece is fixedly connected to the outer wall of the guide tube; and one end of the connecting piece away from the guide tube is inserted into the interior of the motion groove.
[0009] Furthermore, a first pointer and a second pointer are provided on the outer wall of the adjustment component; the first pointer points to the first scale plate; the second pointer points to the second scale plate; and the plane where the first scale plate is located is perpendicular to the plane where the second scale plate is located.
[0010] Furthermore, the adjustment assembly includes a slide, a sliding block, a ball joint, a locator and a connecting bracket; one side of the slide is fixedly connected to the outer wall of the mounting bracket, and the other side is slidably connected to the sliding block; the sliding block is provided with a ball joint at the end away from the slide; one end of the connecting bracket is provided with a mounting cavity, and the other end is fixedly connected to the buffer assembly; the locator presses the ball joint inside the mounting cavity.
[0011] Furthermore, the sliding block includes a slider, a button, a friction block, a pressing piece and a reset piece; one end of the slider moves along the slide, and the other end is fixedly connected to the ball joint; one end of the button is inserted into the interior of the slider and fixedly connected to the pressing piece; the friction block and the reset piece are both located inside the slider; one end of the reset piece abuts against the button, and the other end abuts against the inner wall of the slider; one end of the friction block is connected to the pressing piece, and the other end extends out of the slider and is connected to the slide.
[0012] Furthermore, the reset member is a spring.
[0013] Furthermore, the mounting frame includes a fixed bracket, a movable bracket and a limiter; the movable bracket slides inside the fixed bracket; the limiter enters the interior of the fixed bracket and abuts against the movable bracket; the limiter is threadedly connected to the fixed bracket.
[0014] Furthermore, a fixed jaw is provided on the contact surface between the fixed bracket and the movable bracket; and a movable jaw is provided on the contact surface between the movable bracket and the fixed bracket.
[0015] Furthermore, the guide frames are provided in at least two sizes; and the guide frames are detachably connected to the motion slots.
[0016] The beneficial effects of the present invention are as follows: during use, the mounting frame is mounted on the outside of the ultrasound probe, and the puncture needle is guided by the guide frame for puncture. A longitudinal buffer and a transverse buffer are provided between the guide frame and the mounting frame, providing buffering in both the transverse and longitudinal directions, allowing the puncture needle to move within a certain distance, preventing the patient's pulling force on the puncture needle from acting on the adjustment assembly, effectively preventing the patient's pulling force on the puncture needle from changing the puncture needle's puncture angle, and thus preventing the puncture needle from deviating from the puncture direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A three-dimensional diagram of an integrated positioning guide frame for implementing the present utility model;
[0018] Figure 2 This is a front view of an integrated positioning guide frame for implementing the utility model;
[0019] Figure 3 for Figure 2 AA sectional view;
[0020] Figure 4 for Figure 3 A partial enlarged view of
[0021] Figure 5 for Figure 2 BB cross-sectional view;
[0022] Figure 6 It is a side view of an integrated positioning guide frame for implementing the utility model;
[0023] Figure 7 for Figure 6 CC sectional view;
[0024] Figure 8 A top view of an integrated positioning guide frame for implementing the present utility model;
[0025] In the figure, 1. mounting frame; 2. adjustment assembly; 3. buffer assembly; 4. guide frame; 11. fixed bracket; 12. movable bracket; 13. limiter; 21. slideway; 22. sliding block; 23. ball joint; 24. positioner; 25. connecting bracket; 26. first pointer; 27. second pointer; 31. buffer groove; 32. slide rail; 33. buffer block; 34. longitudinal buffer member; 35. transverse buffer member; 41. guide tube; 42. connecting member; 43. latch; 221. slider; 222. button; 223. friction block; 224. pressing member; 225. reset member. DETAILED DESCRIPTION
[0026] To make the purpose, technical solutions, and advantages of this application more clear, the following will provide a clear and complete description of the technical solutions of this application in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0027] In this document, “illustrative” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “illustrative” should not be interpreted as a more preferred or more advantageous technical solution.
[0028] To simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled.
[0029] In this document, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "inner", "outer", etc., indicating orientations or positional relationships, are 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0030] In this document, unless otherwise expressly specified or limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Terms such as "connected" and "fixed" should be understood broadly. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; and can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0031] like Figure 1-8 The integrated positioning guide frame 4 shown includes a mounting frame 1, an adjustment component 2, a buffer component 3, and a guide frame 4; the buffer component 3 includes a buffer slot 31, a slide rail 32, a buffer block 33, a longitudinal buffer 34 and a transverse buffer 35; one end of the adjustment component 2 is connected to the mounting frame 1, and the other end is fixedly connected to the buffer slot 31; the slide rail 32 and the longitudinal buffer 34 are both located inside the buffer slot 31; one end of the buffer block 33 is inserted into the interior of the buffer slot 31 and then slidably connected to the slide rail 32; the longitudinal buffer 34 is located on both sides of the buffer block 33; one end of the longitudinal buffer 34 abuts against the buffer block 33, and the other end abuts against the inner wall of the buffer slot 31; a moving slot is provided at the end of the buffer block 33 away from the buffer slot 31; one end of the guide frame 4 is inserted into the interior of the moving slot; the transverse buffer 35 is located between the guide frame 4 and the inner wall of the moving slot.
[0032] During use, the mounting frame 1 is mounted on the outside of the ultrasound probe, and the puncture needle is guided by the guide frame 4 for puncture. A longitudinal buffer 34 and a transverse buffer 35 are provided between the guide frame 4 and the mounting frame 1, providing buffering in both the transverse and longitudinal directions, allowing the puncture needle to move within a certain distance. This prevents the patient's pulling force on the puncture needle from acting on the adjustment assembly 2, effectively preventing the patient's pulling force on the puncture needle from changing the puncture needle's puncture angle, thereby preventing the puncture needle from deviating from the puncture direction.
[0033] The longitudinal buffer members 34 are located on both sides of the buffer block 33 . When the patient applies a pulling force on the puncture needle so that the puncture needle moves in the longitudinal direction, the buffer block 33 moves along the slide rail 32 .
[0034] Specifically, the longitudinal buffer 34 is a spring, the slide rail 32 is a cylindrical structure, and the spring is sleeved on the outside of the slide rail 32 to prevent the longitudinal buffer 34 from deflecting.
[0035] Preferably, the longitudinal buffer 34 is made of 316L stainless steel with a stiffness coefficient of 0.8-1.5 N / mm.
[0036] The transverse buffer members 35 are located on both sides of the guide frame 4. When the patient's pulling force on the puncture needle causes the puncture needle to move in the transverse direction, the guide frame 4 moves transversely inside the movement groove.
[0037] refer to Figure 5 As can be seen, the end of the buffer block 33 away from the buffer groove 31 is detachably connected to a latch 43; the latch 43 is inserted into the movement groove and passes through the guide frame 4. When the patient exerts a lateral pulling force on the puncture needle, the guide frame 4 moves laterally along the latch 43.
[0038] Specifically, the transverse buffer 35 is a silicone damping ring with a Shore hardness of 30 A. The transverse buffer 35 has a through hole, and the latch 43 passes through the transverse buffer 35 through the through hole.
[0039] Alternatively, the transverse buffer 35 is a spring, and the spring is wrapped around the outside of the latch 43 .
[0040] Preferably, at least two sizes of guide frames 4 are provided to accommodate puncture needles of different sizes. The guide frame 4 is detachably connected to the movement slot via a latch 43 , and the guide frame 4 can be replaced by pulling out the latch 43 .
[0041] In some embodiments of the present application, micro pressure sensors are installed on the longitudinal buffer 34 and the transverse buffer 35, and an alarm is installed on the fixing frame. The pressure value is displayed in real time, and the alarm is triggered when the pressure exceeds the limit, and the alarm is sounded, lighted, etc.
[0042] like Figure 3 As shown, the adjustment component 2 includes a slide 21, a sliding block 22, a ball joint 23, a locator 24 and a connecting bracket 25; one side of the slide 21 is fixedly connected to the outer wall of the mounting frame 1, and the sliding block 22 is slidably connected on the other side; the end of the sliding block 22 away from the slide 21 is provided with a ball joint 23; one end of the connecting bracket 25 is provided with a mounting cavity, and the other end is fixedly connected to the buffer component 3; the locator 24 presses the ball joint 23 inside the mounting cavity.
[0043] The position of the sliding block 22 on the slideway 21 is changed to adjust the relative position between the guide frame 4 and the fixed frame according to the patient's physiological condition.
[0044] like Figure 3 As shown, the mounting frame 1 includes a fixed bracket 11, a movable bracket 12 and a limiter 13; the movable bracket 12 slides inside the fixed bracket 11; the limiter 13 enters the interior of the fixed bracket 11 and abuts against the movable bracket 12; the limiter 13 is threadedly connected to the fixed bracket 11.
[0045] When in use, the ultrasonic probe is placed between the inner wall of the fixed bracket 11 and the movable bracket 12, and the limiter 13 is tightened so that the movable bracket 12 presses the ultrasonic probe against the inner wall of the fixed bracket 11, thereby increasing the friction between the ultrasonic probe pressure regulating fixed bracket 11 and between the ultrasonic probe and the movable bracket 12, and using the friction force to lock the relative position relationship between the ultrasonic probe and the mounting frame 1.
[0046] Specifically, a fixed jaw is provided on the contact surface between the fixed bracket 11 and the movable bracket 12; a movable jaw is provided on the contact surface between the movable bracket 12 and the fixed bracket 11. Both the fixed jaw and the movable jaw have V-shaped grooves. This design aims to increase the contact area between the ultrasonic probe and the fixed and sliding jaws when clamping an ultrasonic probe with an arc-shaped surface, thereby enhancing stability.
[0047] like Figure 3-4 As shown, the sliding block 22 includes a slider 221, a button 222, a friction block 223, a pressing piece 224 and a reset piece 225; one end of the slider 221 moves along the slide 21, and the other end is fixedly connected to the ball joint 23; one end of the button 222 is inserted into the interior of the slider 221 and fixedly connected to the pressing piece 224; the friction block 223 and the reset piece 225 are both located inside the slider 221; one end of the reset piece 225 abuts against the button 222, and the other end abuts against the inner wall of the slider 221; one end of the friction block 223 is connected to the pressing piece 224, and the other end extends out of the slider 221 and is connected to the slide 21.
[0048] Pressing button 222 compresses reset member 225, disengaging friction block 223 from pressing member 224. No external force is now applied to friction block 223 against slideway 21. By moving slider 22, friction block 223 disengages from the sidewall of slideway 21, changing the relative position of slider 221 on slideway 21. Releasing button 222 restores reset member 225 to its original position. Pressing member 224 presses friction block 223 against slideway 21, increasing the friction between friction block 223 and slideway 21 and retaining slider 221 on slideway 21.
[0049] Specifically, the reset member 225 is a spring.
[0050] like Figure 7 As shown, guide frame 4 includes a guide tube 41 and a connector 42. Connector 42 is fixedly connected to the outer wall of guide tube 41. The end of connector 42, away from guide tube 41, is inserted into the interior of the movement slot. A latch 43, inserted into the movement slot, passes through connector 42. The puncture needle is inserted into the patient's body through guide tube 41.
[0051] In some embodiments of the present application, a speed sensor is provided inside the guide tube 41 to measure the movement speed of the puncture needle, and the insertion depth of the puncture needle is obtained by combining the movement time of the puncture needle.
[0052] like Figure 7-8 As shown, a first pointer 26 and a second pointer 27 are provided on the outer wall of the connecting bracket 25. The first pointer 26 points to the first scale, while the second pointer 27 points to the second scale. The plane of the first scale is perpendicular to the plane of the second scale. The first pointer 26 and the first scale indicate the deflection angle of the guide tube 41 in the horizontal plane. The second pointer 27 and the second scale indicate the angle between the axis of the guide tube 41 and the vertical plane.
[0053] Specifically, the first scale plate and the second scale plate are both arranged on the side wall of the sliding block 22 .
[0054] Preferably, the first pointer 26 and the second pointer 27 are both rotatably connected to the connecting bracket 25 . The purpose of this design is to prevent the first pointer 26 and the second pointer 27 from obstructing the rotation of the connecting bracket 25 .
[0055] The above description is only a specific embodiment of the present application. Based on the above teachings of the present application, those skilled in the art may make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above description is only a better explanation of the purpose of the present application, and the scope of protection of the present application shall be based on the scope of protection of the claims.
Claims
1. An integrated positioning guide frame, comprising a mounting frame, an adjustment assembly, a buffer assembly, and a guide frame, characterized in that: The buffer assembly includes a buffer groove, a slide rail, a buffer block, a longitudinal buffer and a transverse buffer; one end of the adjustment assembly is connected to the mounting frame, and the other end is fixedly connected to the buffer groove; the slide rail and the longitudinal buffer are both located inside the buffer groove; one end of the buffer block is inserted into the interior of the buffer groove and then slidably connected to the slide rail; the longitudinal buffer is located on both sides of the buffer block; one end of the longitudinal buffer abuts the buffer block, and the other end abuts the inner wall of the buffer groove; a moving groove is provided at the end of the buffer block away from the buffer groove; one end of the guide frame is inserted into the interior of the moving groove; the transverse buffer is located between the guide frame and the inner wall of the moving groove.
2. The integrated positioning guide frame according to claim 1, characterized in that: One end of the buffer block away from the buffer slot is detachably connected with a latch; the latch is inserted into the motion slot and then passes through the guide frame.
3. The integrated positioning guide frame according to claim 1, characterized in that: The guide frame includes a guide tube and a connecting piece; the connecting piece is fixedly connected to the outer wall of the guide tube; and one end of the connecting piece away from the guide tube is inserted into the interior of the motion groove.
4. The integrated positioning guide frame according to claim 1, characterized in that: A first pointer and a second pointer are provided on the outer wall of the adjustment component; the first pointer points to the first scale plate; the second pointer points to the second scale plate; the plane where the first scale plate is located is perpendicular to the plane where the second scale plate is located.
5. The integrated positioning guide frame according to claim 1, characterized in that: The adjustment assembly includes a slide, a sliding block, a ball joint, a locator and a connecting bracket; one side of the slide is fixedly connected to the outer wall of the mounting bracket, and the other side is slidably connected to the sliding block; the end of the sliding block away from the slide is provided with a ball joint; one end of the connecting bracket is provided with a mounting cavity, and the other end is fixedly connected to the buffer assembly; the locator presses the ball joint into the inside of the mounting cavity.
6. The integrated positioning guide frame according to claim 5, characterized in that: The sliding block includes a slider, a button, a friction block, a pressing piece and a reset piece; one end of the slider moves along the slide, and the other end is fixedly connected to the ball joint; one end of the button is inserted into the interior of the slider and fixedly connected to the pressing piece; the friction block and the reset piece are both located inside the slider; one end of the reset piece abuts against the button, and the other end abuts against the inner wall of the slider; one end of the friction block is connected to the pressing piece, and the other end extends out of the slider and is connected to the slide.
7. The integrated positioning guide frame according to claim 6, characterized in that: The reset element is a spring.
8. The integrated positioning guide frame according to claim 1, characterized in that: The mounting frame includes a fixed bracket, a movable bracket and a limiter; the movable bracket slides inside the fixed bracket; the limiter enters the interior of the fixed bracket and abuts against the movable bracket; the limiter is threadedly connected to the fixed bracket.
9. The integrated positioning guide frame according to claim 8, characterized in that: A fixed jaw is provided on the contact surface between the fixed bracket and the movable bracket; and a movable jaw is provided on the contact surface between the movable bracket and the fixed bracket.
10. The integrated positioning guide frame according to any one of claims 1 to 9, characterized in that: The guide frames are provided with at least two sizes; and the guide frames are detachably connected to the motion slots.