Ultrasound intervention guidance device
By designing an ultrasound interventional guidance device with a detachable sleeve and ball-head adjustment screw, the problems of unstable fixation of the ultrasound probe and puncture needle and inconvenient angle adjustment are solved, achieving precise positioning and stable operation of the puncture and improving medical safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING DITAN HOSPITAL CAPITAL MEDICAL UNIVERSTY
- Filing Date
- 2025-04-11
- Publication Date
- 2026-06-09
Smart Images

Figure CN224331004U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of puncture guidance devices, specifically relating to an ultrasound interventional guidance device. Background Technology
[0002] Ultrasound-guided interventional puncture is widely used in clinical medicine, especially in the diagnosis and treatment of organs such as the liver, kidneys, and breasts. With its advantages of real-time imaging and high-precision positioning, ultrasound-guided technology plays an irreplaceable role in interventional treatment.
[0003] With the development of medical technology, the precision requirements for ultrasound-guided interventional punctures are becoming increasingly stringent. Traditional ultrasound-guided devices have certain problems in practical applications, mainly manifested in insufficient puncture precision and even the possibility of accidental puncture due to factors such as insecure fixation of the ultrasound probe and puncture needle, inconvenience in angle adjustment, and difficulty in accurately controlling the direction of the puncture needle during the puncture process, which affect the patient's treatment effect and safety.
[0004] Specifically, existing ultrasound-guided interventional devices typically employ simple clamping structures or fixation devices lacking sufficient adjustment space. These devices often fail to achieve precise angle adjustment and stable fixation between the ultrasound probe and the puncture needle, causing the puncture needle's angle and direction to easily deviate from the target during the procedure, thus affecting the accuracy of the puncture. Furthermore, existing devices often require repetitive and cumbersome adjustments to the puncture needle, increasing the difficulty and risk of the surgery. Utility Model Content
[0005] To address the problems existing in the prior art, the purpose of this invention is to provide an ultrasound-guided interventional device that can stably fix the puncture needle and ultrasound probe. This device should provide more precise control over the puncture direction and angle, ensuring the stability and accuracy of the puncture operation, thereby improving medical safety and reducing operational risks.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An ultrasound interventional guidance device includes an ultrasound probe and a detachable sleeve fitted onto the ultrasound probe. A vertical guide rod is provided on the right side of the sleeve, and the right side of the sleeve is fixedly connected to the guide rod via a connector. A pinhole penetrating through the center of the guide rod is provided. The connector includes a first connecting rod fixed to the sleeve and a second connecting rod fixed to the guide rod. A connecting sleeve is fixed to the right end of the first connecting rod, and a ball head that is locked inside the connecting sleeve is fixed to the left end of the second connecting rod. The outer surface of the ball head is provided with evenly distributed anti-slip protrusions, and an adjusting screw that is tightened against the ball head is threaded on the outer side of the connecting sleeve.
[0008] Furthermore, a rubber head is fixed to one end of the adjusting screw near the ball head, and a handle is fixed to the other end of the adjusting screw.
[0009] Furthermore, the sleeve has an opening at the left end, and connecting ears that bend to the left are fixed at both the front and rear edges of the opening at the left end. The two connecting ears are fixedly connected by a locking screw.
[0010] Furthermore, the two connecting ears are respectively provided with through holes and threaded holes, and the locking screw passes through the through holes and is screwed into the inside of the threaded holes.
[0011] Furthermore, multiple anti-slip pads are provided on the inner front and rear side walls of the sleeve. The anti-slip pads are rubber pads and can be detachably fixed to the sleeve.
[0012] Furthermore, multiple fixing posts are fixed on the side of the anti-slip pad facing the inner side of the sleeve, and ring-shaped ribs are fixed on the outer side of the fixing posts near the end.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] First, the clamp is securely connected to the ultrasound probe via a detachable design and a precise locking structure, ensuring the probe remains stable throughout the procedure. Compared to existing devices, the clamp's secure design is more robust, effectively preventing puncture direction errors caused by probe instability. This design solves the problem of insufficient puncture accuracy due to insecure fixation in traditional devices, thus improving the safety of the puncture operation.
[0015] Secondly, the angle adjustment mechanism comprised of the adjusting screw, ball head, and connecting sleeve in the connector allows for flexible adjustment of the puncture needle angle in multiple directions. In traditional devices, the inflexible adjustment method often makes it difficult to precisely control the puncture needle angle, leading to inaccurate or offset puncture positions. Through the precision angle adjustment design in this invention, users can accurately adjust the puncture needle angle based on real-time imaging data from the ultrasound probe, thereby improving puncture accuracy. In particular, the combination of the ball head and adjusting screw enables multi-directional adjustment without blind spots, solving the problem of traditional devices' inability to finely adjust the angle.
[0016] Furthermore, the design of the locking screw and connecting lug not only ensures a secure connection between the clamp and the ultrasonic probe but also prevents loosening or displacement during operation, further ensuring the stability and reliability of the entire device. Compared with existing technologies, the locking structure of this device is more robust, avoiding probe position displacement caused by loosening, thereby effectively improving the accuracy of ultrasound guidance.
[0017] Finally, the anti-slip pad inside the sleeve is made of high-quality silicone material, providing stronger friction to prevent the probe from slipping during operation and further ensuring stability. Meanwhile, the removable design of the anti-slip pad makes cleaning and maintenance more convenient. Compared to the instability of existing anti-slip designs, the anti-slip design of this invention enhances the friction between the probe and the sleeve, significantly improving stability and ease of operation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the connecting component structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the adjusting screw of this utility model;
[0021] Figure 4 This is a schematic diagram of the clamp of this utility model;
[0022] Figure 5 This is a schematic diagram of the anti-slip mat of this utility model.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Hoop; 11. Anti-slip pad; 111. Fixing post; 112. Ring rib; 12. Connecting ear; 13. Locking screw; 2. Ultrasonic probe; 3. Connecting piece; 31. First connecting rod; 32. Connecting sleeve; 33. Adjusting screw; 331. Rotary handle; 332. Rubber head; 34. Ball head; 35. Second connecting rod; 36. Anti-slip boss; 4. Guide rod. Detailed Implementation
[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0026] like Figure 1As shown, an ultrasound-guided interventional device includes an ultrasound probe 2 and a detachable sleeve 1 mounted on the ultrasound probe 2. A vertical guide rod 4 is provided on the right side of the sleeve 1, and the right side of the sleeve 1 is fixedly connected to the guide rod 4 via a connector. A through-hole is provided in the center of the guide rod 4. The ultrasound probe 2 is used for real-time ultrasound imaging to ensure accurate positioning information during puncture operations. It typically uses a high-frequency probe with a diameter of 2.5 cm and an operating frequency range between 3.5 MHz and 7.5 MHz. The guide rod 4 is made of an adjustable-length metal material, usually stainless steel, which has good stability and corrosion resistance, ensuring that it maintains its functionality and strength during multiple operations.
[0027] like Figure 2 As shown, the connector includes a first connecting rod 31 fixed to the sleeve 1 and a second connecting rod 35 fixed to the guide rod 4. A connecting sleeve 32 is fixed to the right end of the first connecting rod 31, and a ball head 34, which is locked inside the connecting sleeve 32, is fixed to the left end of the second connecting rod 35. The outer surface of the ball head 34 is provided with evenly distributed anti-slip protrusions 36. An adjusting screw 33, which is tightened onto the ball head 34, is threaded onto the outer side of the connecting sleeve 32. The connector design allows the guide rod 4 and the puncture needle to freely adjust their angles during operation, ensuring the precise direction of the puncture needle under ultrasound guidance. The ball head 34 is made of polytetrafluoroethylene (PTFE) to improve wear resistance and reduce sliding resistance, while the anti-slip protrusions 36 are made of stainless steel and precision-machined to provide higher gripping force. The adjusting screw 33 is made of high-strength aluminum alloy, and its outer thread precision meets the standard ISO 965-1, ensuring stable adjustment and precise locking.
[0028] like Figure 3 As shown, a rubber head 332 is fixed to one end of the adjusting screw 33 near the ball head 34, and a handle 331 is fixed to the other end of the adjusting screw 33. The rubber head 332 is made of soft silicone material, which has good pressure resistance and aging resistance, ensuring that it will not be damaged due to operator fatigue after long-term use; the handle 331 is made of aluminum alloy material, which has been anodized, has a smooth and wear-resistant surface, and provides a good feel, making it easy for operators to adjust quickly.
[0029] like Figure 4 As shown, the sleeve 1 has an opening at its left end, and connecting ears 12 bent to the left are fixed to both the front and rear edges of the opening at the left end. The two connecting ears 12 are fixedly connected by a locking screw 13. The connecting ears 12 are made of high-strength steel and undergo heat treatment to enhance their structural stability and durability. The locking screw 13 has corrosion-resistant properties and is usually made of stainless steel. Its shape is designed to take into account the wear of the threads after long-term use, ensuring that the locking effect will not decrease with the extension of use time.
[0030] like Figure 4 As shown, each of the two connecting lugs 12 has a through hole and a threaded hole, respectively. The locking screw 13 passes through the through hole and is screwed into the inside of the threaded hole. This design ensures that the locking screw 13 can securely connect the connecting lugs 12, preventing loosening during operation and thus maintaining a firm connection between the sleeve 1 and the ultrasonic probe 2. The dimensions of the threaded hole and through hole of the locking screw 13 conform to GB / T 2284-2015 (bolt specifications), ensuring a tight fit with the screw and preventing any deviation caused by loosening.
[0031] like Figure 4 As shown, multiple anti-slip pads 11 are provided on the inner front and rear sidewalls of the sleeve 1. The anti-slip pads 11 are rubber pads and are detachably fixed to the sleeve 1. The anti-slip pads 11 are made of high-temperature resistant and wear-resistant silicone material with a thickness of 3mm, which can effectively increase the friction between the sleeve 1 and the ultrasonic probe 2, prevent slippage, and improve stability. The design of the anti-slip pads 11 allows for replacement or cleaning as needed, facilitating maintenance. Each anti-slip pad 11 is equipped with a fixing post 111 to ensure that it is firmly installed on the inner side of the sleeve 1, preventing displacement or loosening during use.
[0032] like Figure 5 As shown, multiple fixing posts 111 are fixed to the side of the anti-slip pad 11 facing the inner side of the sleeve 1, and annular ribs 112 are fixed to the outer side of the fixing posts 111 near their ends. The annular ribs 112 are made of plastic material and are precision injection molded, possessing high strength and durability. They increase the tight contact between the anti-slip pad 11 and the inner side of the sleeve 1, thereby improving friction and ensuring that the anti-slip pad 11 is not easily detached during long-term use. The combined design of the fixing posts 111 and the annular ribs 112 ensures the stability of the anti-slip pad and its reliability for long-term use.
[0033] The working principle of this utility model is as follows: When performing ultrasound interventional puncture, the sleeve 1 is put on the ultrasound probe 2, and the locking screw 13 is turned to make the two connecting ears 12 move relative to each other, thereby realizing the locking and fixing of the sleeve 1 on the ultrasound probe 2.
[0034] Then, the ultrasonic probe 2 is used to perform ultrasonic detection on the puncture site. When the puncture position and direction are determined, the puncture needle is inserted into the guide rod 4 through the needle hole. The angle of the puncture needle is adjusted according to the position detected by the ultrasonic probe 2. When adjusting the angle of the puncture needle, the adjusting screw 33 is loosened. At this time, the rotation of the ball head 34 in the connecting sleeve 32 is used to adjust the guide rod 4 and the puncture needle in more angles and directions. After the puncture needle is adjusted, the adjusting screw 33 is tightened again to make it press against the ball head 34. The anti-slip protrusion 36 on the ball head 34 and the rubber head 332 are used to lock the ball head 34 stably, thereby completing the locking and fixing of the puncture needle after the angle adjustment.
[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. An ultrasound interventional guidance device, comprising an ultrasound probe (2) and a detachable sleeve (1) fitted onto the ultrasound probe (2), characterized in that: A vertical guide rod (4) is provided on the right side of the sleeve (1), and the right side of the sleeve (1) is fixedly connected to the guide rod (4) through a connector. A pinhole is provided in the center of the guide rod (4). The connector includes a first connecting rod (31) fixed on the sleeve (1) and a second connecting rod (35) fixed on the guide rod (4). A connecting sleeve (32) is fixed to the right end of the first connecting rod (31), and a ball head (34) is fixed to the left end of the second connecting rod (35) and is inserted into the connecting sleeve (32). The outer surface of the ball head (34) is provided with uniformly distributed anti-slip protrusions (36). An adjusting screw (33) is threaded on the outer side of the connecting sleeve (32) and is tightened onto the ball head (34).
2. The ultrasound interventional guidance device according to claim 1, characterized in that: The adjusting screw (33) has a rubber head (332) fixed at one end near the ball head (34), and a handle (331) fixed at the other end of the adjusting screw (33).
3. The ultrasound interventional guidance device according to claim 1, characterized in that: The sleeve (1) has an opening at the left end, and the sleeve (1) has connecting ears (12) bent to the left at both the front and rear edges of the opening at the left end. The two connecting ears (12) are fixedly connected by a locking screw (13).
4. The ultrasound interventional guidance device according to claim 3, characterized in that: The two connecting ears (12) are respectively provided with through holes and threaded holes, and the locking screw (13) passes through the through hole and is screwed into the inside of the threaded hole.
5. The ultrasound-guided interventional device according to claim 4, characterized in that: Multiple anti-slip pads (11) are provided on the inner front and rear side walls of the sleeve (1). The anti-slip pads (11) are rubber pads and can be detachably fixed on the sleeve (1).
6. The ultrasound interventional guidance device according to claim 5, characterized in that: The anti-slip pad (11) has multiple fixing posts (111) fixed on the side facing the inner side of the sleeve (1), and a ring-shaped rib (112) is fixed on the outer side of the fixing post (111) near the end.