Ultrasonic-guided nerve block needle

Abstract

The invention discloses an ultrasound-guided nerve block needle. The ultrasound-guided nerve block needle comprises an ultrasonic probe, a connecting mechanism, a clamping mechanism and an adjusting assembly. The connecting mechanism is composed of a sliding rail mechanism, a connecting frame, a sliding frame, a rotating frame, a telescopic frame and a push-pull rod and can achieve flexible adjustment of components, the clamping mechanism achieves stable clamping of a needle head through a fixing groove frame, a clamping block, a connecting rod and a connecting frame, and the adjusting assembly comprises a plurality of threaded rods and is used for adjusting the needle inserting angle and height. By flexibly switching the needle inserting path and accurately adjusting the angle, the puncture efficiency, safety and accuracy are improved, and the discomfort of a patient and the risk of tissue damage are reduced.

Description

Technical Field

[0001] The invention belongs to the field of medical auxiliary equipment, and in particular relates to an ultrasound-guided nerve blocking needle. Background Art

[0002] Ultrasound-guided nerve block technology uses high-frequency ultrasound to visualize structures in the human body, allowing doctors to observe the positional relationship between the puncture needle and the target nerve in real time. Compared with the traditional blind puncture method, ultrasound-guided technology can greatly improve the accuracy of puncture and reduce damage to important structures such as blood vessels and pleura, thereby effectively reducing the incidence of complications. Nerve block under ultrasound guidance can intuitively display the direction, depth and needle tip position of the puncture needle, helping doctors to locate the target nerve more accurately and avoid accidental injury to other tissues.

[0003] Some existing technologies lack an effective fixing mechanism for angle adjustment, which causes the angle to deviate and the needle to be unstable during the needle insertion process, resulting in reduced puncture accuracy and increased risk of accidental injury to non-target tissues, which in turn affects the anesthesia effect and surgical safety. In addition, although some technologies have the function of angle fixation and stable needle insertion, they can only support a single needle insertion route, lack the function of angle fixation for in-plane and out-of-plane needle insertion routes, and lack applicability and flexibility.

[0004] Thus, the present invention provides an ultrasound-guided nerve block needle. Summary of the invention

[0005] The present invention designs an ultrasound-guided nerve blocking needle to solve the problems existing in the above-mentioned background technology.

[0006] In order to achieve the above technical effects, the present invention is implemented through the following technical solutions:

[0007] An ultrasound-guided nerve blocking needle comprises an ultrasound probe, a connecting mechanism, a clamping mechanism and an adjusting component.

[0008] Furthermore, the connecting mechanism includes a slide rail mechanism that is disassembled and clamped on the ultrasonic probe, a connecting frame arranged on the slide rail mechanism, a sliding frame slidably connected to the connecting frame, a rotating frame rotatably connected to the two lateral ends of the sliding frame, a telescopic frame slidably connected to the rotating frame, and a push-pull rod fixedly connected to the outer end of the telescopic frame and movably connected to the outer end of the rotating frame; the clamping mechanism includes a fixed groove frame fixedly connected to the two ends of the telescopic frame, a clamping block slidably connected to both sides of the fixed groove frame, a connecting rod rotatably connected to the clamping block and rotatably connected to both sides of the fixed groove frame, and a connecting frame movably connected between the two connecting rods; the adjusting assembly includes a first threaded rod arranged on the connecting frame, a second threaded rod arranged on both sides of the outer end of the sliding frame, a third threaded rod arranged on the rotating frame, and a fourth threaded rod arranged on the fixed groove frame; the puncture needle assembly is disassembled and connected to the clamping mechanism.

[0009] Furthermore, the slide rail mechanism includes a support frame that is detachably connected to the ultrasonic probe, an annular slide rail arranged at the outer end of the support frame, and a first slider that is cooperatively connected to the annular slide rail, and the first slider is fixedly connected to the connecting frame.

[0010] Furthermore, through grooves are provided inside the two sides of the rotating frame, and the two ends of the telescopic frame are movably connected in the through grooves.

[0011] Furthermore, slide grooves are provided on both sides of the fixed groove frame, rotating rods are fixedly connected on both sides of the fixed groove frame, the rotating rods and the connecting rods are rotatably connected, and a second sliding block is provided at the rear end of the clamping block, and the second sliding block is slidably connected to the slide grooves.

[0012] Furthermore, oblique guide grooves are provided at both ends of the connecting frame, and a slide bar is provided at the upper end of the rotating rod, and the slide bar is slidably connected to the oblique guide groove.

[0013] Furthermore, the lower end of the first threaded rod is rotatably connected to the upper end of the sliding frame.

[0014] Furthermore, the second threaded rod is detachably connected to both sides of the rotating frame.

[0015] Furthermore, the fourth threaded rod is rotatably connected to the upper end of the fixed groove frame.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention can easily switch between in-plane and out-of-plane needle entry through the flexible movement of the annular slide rail and the connecting frame; this design is compatible with the Weidong puncture of two commonly used nerve block puncture techniques, meeting the diversity of different patients' anatomical structures and surgical needs.

[0018] 2. The present invention realizes the fixation and angle adjustment of the nerve block needle through the linkage of the push-pull rod, the telescopic frame and the clamping mechanism. The clamping mechanism ensures that the nerve block needle can be clamped quickly and firmly; the self-locking performance of the threaded rod ensures the stability of the component during operation, avoids position displacement or loosening, thereby ensuring the smoothness and accuracy of needle insertion; the overall design optimizes the efficiency and safety of nerve block puncture, improves the success rate of the operation, and reduces the patient's discomfort and the risk of tissue damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a front view of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of different puncture angles of the present invention;

[0023] Figure 4 It is a schematic diagram of the connection between the connecting mechanism and the clamping mechanism of the present invention;

[0024] Figure 5 It is a schematic diagram of the local structure of the connecting mechanism of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the clamping mechanism of the present invention in a clamping state;

[0026] Figure 7 It is a structural schematic diagram of the clamping mechanism of the present invention in a released state;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Ultrasonic probe; 2. Connecting mechanism; 21. Slide rail mechanism; 211. Support frame; 212. Annular slide rail; 22. Connecting frame; 23. Sliding frame; 24. Rotating frame; 25. Telescopic frame; 26. Push-pull rod; 3. Clamping mechanism; 31. Fixed slot frame; 311. Rotating rod; 32. Clamping block; 321. Second sliding block; 31. Fixed slot frame; 33. Connecting rod; 34. Connecting frame; 341. Oblique guide groove; 4. Adjusting assembly; 41. First threaded rod; 42. Second threaded rod; 43. Third threaded rod; 44. Fourth threaded rod; 5. Puncture needle assembly. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figures 1 to 7As shown, an ultrasound-guided nerve block needle comprises an ultrasound probe 1, a connecting mechanism 2, a clamping mechanism 3 and an adjustment assembly 4, characterized in that: the connecting mechanism 1 comprises a connecting mechanism 2 comprising a slide rail mechanism 21 detachably clamped on the ultrasound probe 1, a connecting frame 22 arranged on the slide rail mechanism 21, a sliding frame 23 slidably connected to the connecting frame 22 through the slide rail, a rotating frame 24 rotatably connected to the two ends of the side of the sliding frame 23, a telescopic frame 25 slidably connected to the rotating frame 24, and a push-pull rod 26 fixedly connected to the outer end of the telescopic frame 25 and movably connected to the outer end of the rotating frame 24; the clamping mechanism 3 includes a fixed slot frame 31 fixedly connected to the two ends of the telescopic frame 25, a clamping block 32 slidably connected to the two sides of the fixed slot frame 31, a connecting rod 33 rotatably connected to the clamping block 32 through a rotating shaft and rotatably connected to the two sides of the fixed slot frame 31, and a connecting frame 34 movably connected between the two connecting rods 33; the adjusting assembly 4 includes a first threaded rod 41 arranged on the connecting frame 22, a second threaded rod 42 arranged on both sides of the outer end of the sliding frame 23, a third threaded rod 43 arranged on the rotating frame 24, and a fourth threaded rod 44 arranged on the fixed slot frame 31; the clamping mechanism 3 is detachably connected to the puncture needle assembly 5.

[0032] The slide rail mechanism 21 comprises a support frame 211 that is detachably connected to the ultrasonic probe 1, an annular slide rail 212 disposed at the outer end of the support frame 211, and a first slider that is connected to the annular slide rail 212. The first slider is fixedly connected to the connection frame 22. The first slider is a slider with a self-locking function.

[0033] Through slots are provided inside the two sides of the rotating frame 24, and the two ends of the telescopic frame 25 are movably connected in the through slots.

[0034] Slide grooves are provided on both sides of the fixed groove frame 31, and rotating rods 311 are fixedly connected on both sides of the fixed groove frame 31. The rotating rod 311 is rotatably connected to the connecting rod 33. A second slider 321 is provided at the rear end of the clamping block 32, and the second slider 321 is slidably connected to the slide grooves.

[0035] The two ends of the connecting frame 34 are provided with oblique guide grooves 341, the upper end of the rotating rod 311 is provided with a sliding rod, the sliding rod is slidably connected to the oblique guide groove 341, and the rear end of the connecting frame 34 is slidably connected to the fixed groove frame 31 through a sliding rail. The lower end of the first threaded rod 41 and the upper end of the sliding frame 23 are rotatably connected through a rotating shaft structure or a bearing seat.

[0036] The rotating frame 24 is provided with rotating shafts on both sides, and the rotating shafts match the rotating holes on both sides of the sliding frame 23. The second threaded rod 42 is detachably connected to the rotating shafts on both sides of the rotating frame 24, and the second threaded rod 42 can limit the rotation of the rotating frame 24.

[0037] The fourth threaded rod 44 and the upper end of the fixed slot frame 31 are rotatably connected via a rotating shaft structure or a bearing seat.

[0038] The threaded rod has a self-locking effect. Through its self-locking performance, the relative positions of the connecting mechanism, the clamping mechanism and its related components can be stably adjusted without the need for additional locking devices, preventing position displacement or loosening due to external forces during operation or use, thereby ensuring the reliability and accuracy of the device.

[0039] Example 2

[0040] The operating principle of the present invention:

[0041] In modern medical anesthesia, nerve block anesthesia has become an important method to effectively prevent surgical pain and relieve patients' suffering. When performing nerve block puncture under ultrasound guidance, two techniques are mainly used: in-plane needle approach and out-of-plane needle approach:

[0042] 1. In-plane needle entry:

[0043] The insertion direction of the puncture needle is consistent with the ultrasound beam plane of the ultrasound probe. The needle can be fully imaged as it approaches the target structure. The advantage of this method is that the entire puncture needle position including the needle tip can be observed during the operation, effectively avoiding non-neural structures such as blood vessels and pleura.

[0044] 2. Out-of-plane needle approach:

[0045] The direction of the puncture needle is perpendicular to the ultrasound beam plane of the ultrasound probe, and the image is a short-axis cross-sectional image of the needle. Although this method can only show a portion of the needle, since the needle insertion path is similar to the traditional nerve block method, the needle passes through the least tissue, which helps to improve the efficiency of the operation.

[0046] The annular slide rail 212 allows the connecting frame 22 to move flexibly thereon. With this structure, medical personnel can select the insertion direction of the nerve block needle, thereby deciding to use an in-plane needle insertion route or an out-of-plane needle insertion route. After completing the selection of the needle insertion route, the connecting frame is fixed in the desired position by locking the first slider to ensure the stability and accuracy of the system during the puncture process.

[0047] When inserting the needle, it should be inserted smoothly at a fixed angle. First, pull the push-pull rod 26 to drive the clamping mechanism 3 to move outward through the telescopic frame 25. Place the needle seat of the puncture needle assembly between the clamping blocks 32, and connect the infusion tube of the puncture needle assembly and the syringe for injecting anesthetic. Rotate the fourth threaded rod 44 and push it downward to drive the connecting frame 34 to move downward. The oblique guide groove 341 on the connecting frame 34 presses the upper end of the connecting rod 33 to swing, and rotates with the rotating rod 311 as the fulcrum, thereby bringing the clamping block 32 at the lower end of the connecting rod 33 closer to fix and clamp the needle seat. By rotating the first threaded rod 41, adjust the fixed slot frame 31 to slide up and down to achieve the adjustment of the height of the nerve block needle.

[0048] And the rotating frame 24 is rotated and adjusted, and the push-pull rod 26 is pulled, and the puncture angle and distance of the blocking needle are adjusted through these adjustment operations. Scale marks can be set on the surface of the connecting frame 22 and the rotating frame 24, and medical staff can make more precise adjustments according to the scale marks. After adjusting to the ideal puncture angle, the position of each component is fixed by the self-locking performance of the threaded rod to ensure the stability of the adjustment state. Then loosen the third threaded rod 43, unlock the fixation of the push-pull rod 26, and the medical staff performs a smooth puncture operation by pushing the push-pull rod 26 until the needle reaches the target neural structure. After the puncture is completed, the anesthetic is injected to achieve the effect of nerve block.

Claims

1. An ultrasound-guided nerve block needle, comprising an ultrasound probe (1), a connecting mechanism (2), a clamping mechanism (3) and an adjustment component (4), characterized in that: The connecting mechanism (1) comprises a connecting mechanism (2) comprising a slide rail mechanism (21) detachably connected to the ultrasonic probe (1), a connecting frame (22) arranged on the slide rail mechanism (21), a sliding frame (23) slidably connected to the connecting frame (22), a rotating frame (24) rotatably connected to the two ends of the side of the sliding frame (23), a telescopic frame (25) slidably connected to the rotating frame (24), and a push-pull rod (26) fixedly connected to the outer end of the telescopic frame (25) and movably connected to the outer end of the rotating frame (24); the clamping mechanism (3) comprises a fixed slot frame (31) fixedly connected to the two ends inside the telescopic frame (25). , a clamping block (32) slidably connected to both sides of the fixed slot frame (31), a connecting rod (33) rotatably connected to the clamping block (32) and rotatably connected to both sides of the fixed slot frame (31), and a connecting frame (34) movably connected between the two connecting rods (33); the adjusting assembly (4) comprises a first threaded rod (41) arranged on the connecting frame (22), a second threaded rod (42) arranged on both sides of the outer end of the sliding frame (23), a third threaded rod (43) arranged on the rotating frame (24), and a fourth threaded rod (44) arranged on the fixed slot frame (31); the puncture needle assembly (5) is disassembled and connected on the clamping mechanism (3).

2. The ultrasound-guided nerve block needle according to claim 1, characterized in that: The slide rail mechanism (21) comprises a support frame (211) that is detachably clamped on the ultrasonic probe (1), an annular slide rail (212) arranged at the outer end of the support frame (211), and a first sliding block that is cooperatively connected to the annular slide rail (212), wherein the first sliding block is fixedly connected to the connecting frame (22).

3. The ultrasound-guided nerve block needle according to claim 1, characterized in that: Through slots are provided inside the two sides of the rotating frame (24), and the two ends of the telescopic frame (25) are movably connected in the through slots.

4. The ultrasound-guided nerve block needle according to claim 1, characterized in that: Slide grooves are provided on both sides of the fixed groove frame (31), rotating rods (311) are fixedly connected to both sides of the fixed groove frame (31), the rotating rod (311) and the connecting rod (33) are rotatably connected, and a second sliding block (321) is provided at the rear end of the clamping block (32), and the second sliding block (321) and the slide groove are slidably connected.

5. The ultrasound-guided nerve block needle according to claim 1, characterized in that: Both ends of the connecting frame (34) are provided with oblique guide grooves (341), the upper end of the rotating rod (311) is provided with a sliding rod, and the sliding rod and the oblique guide groove (341) are slidably connected.

6. The ultrasound-guided nerve block needle according to claim 1, characterized in that: The lower end of the first threaded rod (41) is rotatably connected to the upper end of the sliding frame (23).

7. The ultrasound-guided nerve block needle according to claim 1, characterized in that: The second threaded rod (42) and the rotating frame (24) are detachably connected at both sides.

8. The ultrasound-guided nerve block needle according to claim 1, characterized in that: The fourth threaded rod (44) is rotatably connected to the upper end of the fixed slot frame (31).

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