An adjustable anesthesia assisted positioning puncture device for ultrasonic anesthesia

Abstract

The present application relates to the field of anesthetic puncture, in particular to an adjustable anesthetic auxiliary positioning puncture device for ultrasonic anesthesia, comprising a lower hatch, a wheel groove is arranged in the lower hatch, a base is slidingly matched in the wheel groove, a push rod is fixedly connected to the upper part of the side edge of the base, the other end of the push rod extends out of the lower hatch, a traveling wheel is slidingly matched to the top surface of the base, a support rod is rotatably connected to the traveling wheel, a clamping groove for fixing a needle cylinder is fixedly connected to the end of the support rod away from the traveling wheel, a nut seat is fixedly connected to the bottom of the clamping groove, and a ball screw is rotatably connected in the nut seat; the top of the base is a slope with the side close to the clamping groove being lower than the other side, an arc-shaped clamping piece is hinged to the side of the base away from the clamping groove, and one end of the ball screw is rotatably connected with the arc-shaped clamping piece. Through the adjustability of the mechanical structure, the present application can realize the adjustment and control of the puncture angle and depth, and assist medical staff to complete safer, more stable and efficient anesthetic puncture injection operation under ultrasonic monitoring.

Description

Technical Field

[0001] This invention relates to the field of anesthesia puncture technology, specifically to an adjustable anesthesia-assisted positioning puncture device for ultrasound anesthesia. Background Technology

[0002] Puncture is a common medical procedure term referring to the clinical technique of inserting a needle into a body cavity to inject gas or contrast agents for imaging examinations or to inject drugs for diagnostic and therapeutic purposes. Anesthesia puncture needles are specifically used to inject anesthetics into specific areas of the patient's body to achieve local anesthesia. With the continuous development of science and technology, ultrasound technology has been widely used in the medical field. In anesthesiology, the main uses of ultrasound include: ultrasound-guided nerve blocks, ultrasound-guided central venous catheterization, and hemodynamic monitoring. Ultrasound-guided anesthesia not only significantly improves the accuracy and safety of clinical procedures but also effectively meets the needs of modern anesthesiology for minimally invasive, efficient, and individualized treatment.

[0003] During ultrasound-guided anesthesia, medical staff need to use ultrasound imaging equipment to observe in real time the angle and depth of the puncture needle as it enters the lesion site in the patient's body to ensure that the medication is accurately injected into the target tissue. However, in current technology, anesthesia puncture procedures usually rely on manual operation by the doctor, and the control of puncture depth and angle largely depends on the stability of the doctor's fingers holding the syringe. When a doctor's hands tremble due to prolonged work, it is easy for the doctor's fingers to be unable to stably hold and advance the syringe, which can lead to inaccurate positioning of the puncture needle angle and depth, affecting the accuracy of drug injection, thereby reducing the anesthetic effect and even posing certain safety risks.

[0004] Therefore, it is necessary to propose an adjustable anesthesia-assisted positioning puncture device for ultrasound anesthesia to solve the above problems. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides an adjustable anesthesia-assisted positioning puncture device for ultrasound anesthesia. Through the adjustability of its mechanical structure, this device enables the adjustment and control of the puncture angle and depth, assisting medical personnel in performing safer, more stable, and more efficient anesthesia puncture and injection procedures under ultrasound monitoring.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: An adjustable anesthesia-assisted positioning and puncture device for ultrasound anesthesia includes a lower cover with a wheel groove inside. A base is slidably fitted inside the wheel groove. A lever is fixedly connected to the upper side of the base, and the other end of the lever extends outside the lower cover. A traveling wheel is slidably fitted on the top surface of the base, and a support rod is rotatably connected to the traveling wheel. A clamping groove for fixing a syringe is fixedly connected to the end of the support rod away from the traveling wheel. A nut seat is fixedly connected to the bottom of the clamping groove, and a ball screw is rotatably connected inside the nut seat. The top of the base is an inclined surface with the side near the clamping groove lower than the other side. An arc-shaped clamp is hinged to the side of the base away from the clamping groove, and one end of the ball screw is rotatably connected to the arc-shaped clamp.

[0007] The technical principle of the above solution is as follows: Medical staff install the syringe in the clamp and the arc-shaped clamp, and then insert the syringe needle into the patient's lesion site. Subsequently, the angle and depth of the syringe needle are detected and positioned using an ultrasonic device. After the syringe needle is positioned, the ball screw is rotated, causing the clamp to push the syringe to inject the drug into the patient's lesion site. At the same time, after the drug is injected into the superficial lesion site, the drug needs to be injected into the deeper lesion site. As the drug injection progresses, the traveling wheel will move along the inclined surface of the top of the base, causing the arc-shaped clamp to tilt at an angle with the top surface of the base, thereby increasing the injection angle of the syringe. When the medical staff know through the ultrasonic detection device that the angle meets the injection angle, the medical staff pushes the lever, causing the base to move, and with the assistance of the ultrasonic detection device, the syringe needle reaches the predetermined depth, thereby allowing the syringe needle to enter the deep lesion site and complete the drug injection.

[0008] The above approach has the following beneficial effects: 1. This solution enables adaptive adjustment of the injection angle. Through the inclined surface on the base, combined with the traveling wheels and support rod structure, the angle can dynamically change with the depth of injection during the injection process, meeting the continuous injection requirements from superficial to deep layers and improving the accuracy of anesthesia.

[0009] 2. In this procedure, medical staff can adjust the injection depth by manually moving a lever. Moving the lever allows the base to slide as a whole, which makes it easy for operators to quickly adjust the puncture depth according to different lesion sites of patients, thus improving operational efficiency and safety.

[0010] 3. This solution is easy to operate. The operation process only requires rotating the ball screw and pushing the lever to complete the dual adjustment of puncture depth and angle. No manual operation is required for medical staff, which reduces the labor intensity of medical staff's hands and avoids inaccurate puncture depth and angle of the patient site due to hand fatigue and tremors. This ensures more accurate puncture operation of the patient site and improves the success rate of anesthesia injection.

[0011] Furthermore, the bottom of the base is equipped with several guide wheels, all of which slide in conjunction with the wheel grooves.

[0012] Beneficial effects: By arranging multiple guide wheels at the bottom of the base, the force during the sliding process can be effectively distributed, avoiding jamming or deviation, ensuring that the base moves smoothly in the wheel groove, and improving the reliability and safety of the device during operation.

[0013] Furthermore, a motor is coaxially fixedly connected to the other end of the ball screw, and a support assembly for supporting the motor is fixedly connected to the side of the motor away from the ball screw. The support assembly is hinged to the inner bottom wall of the lower hatch.

[0014] Beneficial effects: The motor-driven ball screw rotation can replace manual operation, enabling the syringe to be smoothly advanced during puncture and improving the convenience of operation.

[0015] Furthermore, the support assembly includes a first support arm fixedly connected to the motor, a second support arm hinged to the other end of the first support arm, and the other end of the second support arm hinged to the inner bottom wall of the lower hatch cover; a support rod is hinged to the end of the second support arm near the inner bottom wall of the lower hatch cover, and the other end of the support rod is slidably engaged with the inner bottom wall of the lower hatch cover.

[0016] Beneficial effects: The support rod and the second support arm form multi-point support, which enhances the stability of the motor support provided by the first and second support arms.

[0017] Furthermore, a sliding groove is provided on the outer wall of the lower hatch, and the sliding groove is slidably engaged with the lever. A slider located in the sliding groove is fixedly connected to one end of the lever that extends outside the lower hatch.

[0018] Beneficial effects: The slider slides in the groove, which can effectively limit the movement path of the lever and prevent it from deviating or shaking during operation, thereby improving the overall stability and operating accuracy of the device.

[0019] Furthermore, a button is provided on the lower hatch, and the button is electrically connected to the motor.

[0020] Beneficial effects: By setting a button that is electrically connected to the motor, medical staff can directly control the motor to start or stop via the button, which facilitates the adjustment of the ball screw rotation, thereby achieving automated control of syringe propulsion and improving operational convenience.

[0021] Furthermore, the upper hatch is hinged to the side of the lower hatch.

[0022] Beneficial effects: By rotating the upper and lower covers together to form an openable structure, users can easily open the device to install or replace syringes or inspect and maintain the internal structure, improving operational flexibility and efficiency.

[0023] Furthermore, the slider is equipped with anti-slip texture.

[0024] Beneficial effects: The slider surface has anti-slip texture, which can effectively increase the friction during operation and prevent medical staff from making inaccurate operations due to slipping during pushing or adjusting the lever.

[0025] Furthermore, the top surface of the base is provided with a guide groove, and the traveling wheel slides in the guide groove.

[0026] Beneficial effects: The guide groove restricts the movement trajectory of the travel wheel, ensuring that it always moves along the set inclined plane, avoiding unstable changes in the injection angle due to deviation, and effectively improving puncture accuracy.

[0027] Furthermore, an observation window is provided on the upper hatch.

[0028] Beneficial effects: The observation window on the upper cover allows medical staff to directly observe the working status of the clamping components and syringes, as well as the injection progress of the drug in the syringe, without opening the device, thus improving the safety of the operation and real-time monitoring capabilities.

[0029] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] Figure 1 This is a front sectional view of an embodiment of the adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia of the present invention; Figure 2 This is an isometric view of the clamping assembly of an embodiment of the adjustable anesthesia-assisted positioning puncture device for ultrasound anesthesia of the present invention. Figure 3 This is a front view of an embodiment of the adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia of the present invention; Figure 4 This is a left sectional view of an embodiment of the adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia of the present invention.

[0031] The reference numerals in the accompanying drawings of the instruction manual include: 1. Motor; 2. Ball screw; 3. Grip groove; 4. Arc-shaped clamp; 5. Traveling wheel; 6. Support rod; 7. Wheel groove; 8. Guide groove; 9. Base; 10. Slider; 11. Slide groove; 12. Lever; 13. Upper hatch cover; 14. Guide wheel; 15. Observation window; 18. Button; 19. Lower hatch cover; 20. Anti-slip texture; 21. First support arm; 22. Second support arm; 23. Support rod; 24. Nut seat. Detailed Implementation

[0032] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The following detailed description illustrates the specific implementation method: Example 1:

[0036] An adjustable anesthesia-assisted localization puncture device for ultrasound anesthesia, see attached document. Figure 1 With appendix Figure 2 It can be seen that the lower hatch cover 19 is provided, and a wheel groove 7 is provided inside the lower hatch cover 19. A base 9 is slidably fitted inside the wheel groove 7. Several guide wheels 14 are rotatably connected to both sides of the base 9, and the guide wheels 14 are all slidably fitted with the wheel groove 7. (See attached image) Figure 3 With appendix Figure 4As shown, a lever 12 is glued to the upper side of the base 9. The other end of the lever 12 extends to the outside of the lower cover 19. A groove 11 is formed on the outer wall of the lower cover 19, and the groove 11 slides in conjunction with the lever 12. A slider 10 located in the groove 11 is glued to the end of the lever 12 that extends to the outside of the lower cover 19. To prevent medical personnel from slipping while wearing gloves, the slider 10 is provided with anti-slip texture 20. A travel wheel 5 slides in conjunction with the top surface of the base 9, and a guide groove 8 is formed on the top of the base 9, with the travel wheel 5 sliding in conjunction with the guide groove 8. A support rod 6 is rotatably connected to the travel wheel 5. A clamping groove 3 for fixing the syringe is glued to the end of the support rod 6 away from the travel wheel 5. A nut seat 24 is glued to the bottom of the clamping groove 3, and a ball screw 2 is rotatably connected inside the nut seat 24. The top of the base 9 is a sloped surface, with one side closer to the clamping groove 3 lower than the other side. An arc-shaped clamping piece 4 is hinged to the side of the base 9 away from the clamping groove 3. One end of the ball screw 2 is rotatably connected to the arc-shaped clamping piece 4. The other end of the ball screw 2 is coaxially keyed to a motor 1, which is located away from the ball screw. A support assembly for supporting the motor 1 is fixedly connected to one side of the lead screw 2. The support assembly is hinged to the inner bottom wall of the lower hatch cover 19. The support assembly includes a first support arm 21 fixedly connected to the motor 1 by bolts. A second support arm 22 is hinged to the other end of the first support arm 21. The other end of the second support arm 22 is hinged to the inner bottom wall of the lower hatch cover 19. A support rod 23 is hinged to the end of the second support arm 22 near the inner bottom wall of the lower hatch cover 19. The other end of the support rod 23 is slidably engaged with the inner bottom wall of the lower hatch cover 19. A button 18 is provided on the lower hatch cover 19, and the button 18 is electrically connected to the motor 1.

[0037] The specific implementation process is as follows: When medical staff perform anesthesia on the patient's lesion, the syringe barrel is first fixed in the arc-shaped clamp 4, and the syringe plunger is fixed in the clamping groove 3. Then, the needle is inserted into the superficial lesion of the patient. Subsequently, the depth and angle of the syringe needle are detected by an ultrasonic detection device, and the needle is adjusted to be located in the lesion. When the syringe needle reaches the lesion at the predetermined depth, the medical staff presses button 18, which makes motor 1 start working and drives ball screw 2 to start rotating in nut seat 24. This causes clamping groove 3 to move forward and push syringe plunger forward, gradually injecting the drug into the superficial lesion of the patient. Because only the superficial lesion needs to be injected at this time, the angle between the syringe needle and the patient's lesion is small, and the traveling wheel 5 is not in the guide groove 8 at this time. At this time, motor 1 and ball screw 2 do not move forward, so the first support arm 21, the second support arm 22 and the support rod 23 provide fixed support for motor 1.

[0038] Meanwhile, after the injection of medication into the superficial lesion site is completed, medication needs to be injected into the deeper lesion site. If only the syringe is pushed forward, the tip of the syringe barrel will contact the patient's limb, preventing the syringe needle from penetrating deeper into the lesion site. Therefore, it is necessary to increase the angle between the syringe needle and the patient's lesion site to push the syringe needle into the deeper lesion site for medication injection. At this time, as the motor 1 continues to run, the ball screw 2 will continue to rotate, and the clamping groove 3 will continue to push the syringe push rod forward. At this time, the traveling wheel 5 enters the guide groove 8 on the inclined surface of the base 9. As the clamping groove 3 advances, the traveling wheel 5 will move from the bottom to the top of the inclined surface, causing the arc-shaped clamping piece 4 to begin rotating around the base 9, thereby bringing the syringe needle into contact with the patient's limb. As the angle of the affected area begins to change, medical staff push the slider 10 within the groove 11, causing the lever 12 to move forward. This, in turn, causes the base 9 to move forward within the groove 7 under the rotation of the guide wheel 14. The base 9 then moves the arc-shaped clamp 4, the clamp groove 3, the ball screw 2, the motor 1, and the syringe forward together. At this time, the first support arm 21 and the second support arm 22 rotate, the second support arm 22 rotates with the inner bottom wall of the lower cover 19, and the support rod 23 slides with the inner bottom wall of the lower cover 19, providing dynamic support for the advancing motor 1. This allows the syringe needle to penetrate deep into the patient's affected area and complete the injection of medication into the affected area. After the medication injection is completed, the medical staff removes the syringe needle from the patient's affected area.

[0039] The following is a comparative experimental scheme based on the specific structural design of Embodiment 1, and simulated experimental data is added to support the superior performance of the device.

[0040] Experimental objective: By simulating a clinical anesthesia puncture scenario, this experiment compares the performance of the device described in Example 1 with that of a traditional handheld syringe under ultrasound guidance during puncture, thereby verifying the performance advantages of this invention in terms of accuracy, stability, and convenience.

[0041] Table 1 Experimental conditions and materials Experimental subjects Human tissue model (muscle layer + nerve layer) Operators 10 anesthesiologists with the same level of experience Grouping Group A: Using the device described in Example 1; Group B: Using a conventional handheld syringe. Operating environment Standard ultrasound visualization anesthesia puncture simulation system Guiding equipment Portable ultrasound machine (Mindray M9) Target of piercing Define the target neural region (depth 25mm). Number of experiments Each doctor performs 10 procedures, for a total of 100 procedures per group. Table 2 Comparison Indicators and Evaluation Methods Puncture angle deviation The difference between the actual puncture angle and the preset target angle ° Puncture depth error The difference between the actual puncture depth and the set depth (25mm) mm Injection stability score Subjective scoring based on needle displacement trajectory and injection flow rate uniformity. 1-10 points Operation time Total time from positioning completion to injection completion Second Operation success rate Success is achieved if the target area is reached without deviation. % Table 3 Statistical results of simulation data (100 times / group) Average puncture angle deviation 3.2° ± 1.1° 7.5° ± 2.3° P < 0.01 Mean depth error 1.1mm ± 0.7mm 3.6mm ± 1.9mm P < 0.01 Stability rating 9.2 ± 0.5 6.8 ± 0.9 P < 0.01 Operation time 42.3 ± 5.2 seconds 34.7 ± 4.8 seconds P < 0.05 Success rate 94%（97 / 100） 89%（89 / 100） P < 0.01 Note: A successful operation is defined as reaching the nerve region in a single puncture without significant angular / depth deviation.

[0042] Conclusion: The experimental results fully demonstrate that the ultrasound-assisted anesthesia positioning puncture device provided in Example 1 can effectively improve the accuracy of puncture angle and depth control, enhance injection stability, reduce human error, and significantly improve the puncture success rate under ultrasound visual guidance, providing reliable, efficient, and safe technical support for clinical local anesthesia operations.

[0043] Example 2:

[0044] The difference from Example 1 is that, in conjunction with Appendix Figure 3 With appendix Figure 4 It is known that, in order to facilitate medical staff in installing, replacing or inspecting and maintaining the internal structure of syringes, the lower cover 19 is hinged to the side of the upper cover 13.

[0045] The specific implementation process is as follows: After the medical staff has completed the injection of the drug to the patient, the upper cover 13 can be opened, the syringe can be removed from the clamping groove 3 and the arc-shaped clamping piece 4, and the upper cover 13 and the lower cover 19 can be disinfected for the next use.

[0046] Example 3:

[0047] As attached Figure 3 As shown, the difference from Example 2 is that, in order to facilitate medical staff to observe the drug content in the syringe, an observation window 15 is provided on the upper cover 13.

[0048] The specific implementation process is as follows: During the drug injection process, medical staff can observe the drug content in the syringe cartridge through the observation window 15 and take corresponding measures. For example, after the drug in the cartridge is injected, the medical staff immediately press the button 18 to turn off the motor 1, so that the motor 1 stops working, and the ball screw 2 no longer pushes the syringe plunger.

[0049] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An adjustable anesthesia-assisted positioning puncture device for ultrasound anesthesia, comprising a lower chamber cover (19), characterized in that, The lower cover (19) is provided with a wheel groove (7), and a base (9) is slidably fitted in the wheel groove (7). A lever (12) is fixedly connected to the upper side of the base (9). The other end of the lever (12) extends to the outside of the lower cover (19). A traveling wheel (5) is slidably fitted on the top surface of the base (9). A support rod (6) is rotatably connected to the traveling wheel (5). A clamping groove (3) for fixing the syringe is fixedly connected to the end of the support rod (6) away from the traveling wheel (5). A nut seat (24) is fixedly connected to the bottom of the clamping groove (3). A ball screw (2) is rotatably connected in the nut seat (24). The top of the base (9) is a slope where the side near the clamping groove (3) is lower than the other side. An arc-shaped clamp (4) is hinged on the side of the base (9) away from the clamping groove (3). One end of the ball screw (2) is rotatably connected to the arc-shaped clamp (4).

2. The adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia according to claim 1, characterized in that, Several guide wheels (14) are provided on both sides of the base (9), and the guide wheels (14) slide in conjunction with the wheel groove (7).

3. The adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia according to claim 2, characterized in that, The other end of the ball screw (2) is coaxially fixedly connected to a motor (1). The side of the motor (1) away from the ball screw (2) is fixedly connected to a support assembly for supporting the motor (1). The support assembly is hinged to the inner bottom wall of the lower hatch cover (19).

4. The adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia according to claim 3, characterized in that, The support assembly includes a first support arm (21) fixedly connected to the motor (1), and a second support arm (22) hinged to the other end of the first support arm (21). The other end of the second support arm (22) is hinged to the inner bottom wall of the lower hatch cover (19). A support rod (23) is hinged to the end of the second support arm (22) near the inner bottom wall of the lower hatch cover (19), and the other end of the support rod (23) is slidably engaged with the inner bottom wall of the lower hatch cover (19).

5. The adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia according to claim 4, characterized in that, The lower hatch (19) has a sliding groove (11) on its outer side wall. The sliding groove (11) is slidably engaged with the lever (12). The lever (12) is fixedly connected to a slider (10) located in the sliding groove (11) at one end extending outside the lower hatch (19).

6. The adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia according to claim 5, characterized in that, A button (18) is provided on the lower hatch (19), and the button (18) is electrically connected to the motor (1).

7. The adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia according to claim 6, characterized in that, The lower hatch (19) is hinged to the upper hatch (13) on the side.

8. The adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia according to claim 7, characterized in that, The slider (10) is provided with anti-slip texture (20).

9. The adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia according to claim 8, characterized in that, The top surface of the base (9) is provided with a guide groove (8), and the traveling wheel (5) slides in conjunction with the guide groove (8).

10. The adjustable anesthesia-aided positioning puncture device for ultrasound anesthesia according to claim 9, characterized in that, An observation window (15) is provided on the upper hatch (13).

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