A color ultrasound probe self-adapting limiting mechanism adapting surgical asepsis

Abstract

This invention discloses an adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques, relating to the field of ultrasound-assisted medical devices. It includes a main support frame with side support plates on both sides. An adjustable frame is movably installed inside the main support frame, with damping sleeves fixedly installed at both ends. An elastic support fabric is fixedly connected to the inner wall of the damping sleeve, and a positioning ring is provided at the bottom of the outer surface of the elastic support fabric. The color Doppler ultrasound probe body is installed inside the adjustable frame, passing through the positioning ring. An outer sterile protective film is fitted onto the outer surface of the color Doppler ultrasound probe body. Support components are fixedly installed on both sides of the adjustable frame. The integrated clamping and limiting structure composed of the main support frame, the adjustable frame, and the positioning plates can replace manual holding and fixing of the color Doppler ultrasound probe, eliminating the need for prolonged holding by medical personnel, reducing hand fatigue, and improving the stability and continuity of intraoperative color Doppler ultrasound monitoring. Compared with existing technologies, it improves the operational efficiency of long-term monitoring.

Description

Technical Field

[0001] This invention relates to ultrasound-assisted medical device technology, specifically to an adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques. Background Technology

[0002] In surgical aseptic procedures, intraoperative color Doppler ultrasound probes are the core medical devices for real-time ultrasound monitoring during surgery. They are encased in a disposable sterile protective sheath before entering the sterile surgical field. During the procedure, they dynamically scan the target tissue, blood vessels, nerves, or organs, acquiring real-time ultrasound images of lesion morphology, tissue layers, and hemodynamics. This assists the surgeon in accurately locating lesion boundaries, guiding surgical instrument operation paths, and assessing immediate treatment effects. Widely used in various aseptic surgeries in neurosurgery, cardiovascular surgery, abdominal surgery, obstetrics and gynecology, and ophthalmology, they are crucial tools for improving surgical precision and reducing intraoperative exploratory damage. Because the probes directly contact the patient's surgical field during surgery, the color Doppler ultrasound probes and auxiliary operating structures must strictly adhere to aseptic operating procedures. A sterile isolation barrier is used to physically separate non-sterile instruments from the sterile surgical field, preventing iatrogenic cross-contamination.

[0003] In current clinical practice, the position, angle, and pressure of the color Doppler ultrasound probe are mostly controlled and adjusted manually by the operator. During the operation, medical staff need to hold the probe handle and continuously contact the surgical field or wound tissue through a sterile protective cover, and adjust the spatial position, scanning angle, and pressure depth of the probe in real time according to the imaging effect to maintain a stable imaging contact surface. During prolonged surgical procedures, operators must maintain a consistent grip and precise control of the probe. The hand muscles are in a state of static contraction for extended periods, easily leading to soreness, fatigue, and physiological tremors. This can cause probe positioning deviation, decreased accuracy in pressure control, ultrasound image drift, and fluctuations in image quality. Frequent adjustments to the probe posture are necessary to maintain effective monitoring, increasing the operator's workload and indirectly affecting the smoothness of the surgical process and the accuracy of monitoring results. Furthermore, purely manual operation lacks objective constraints; the probe insertion depth, deflection angle, and pressure rely entirely on the operator's clinical experience and feel. Significant differences exist between operators. Excessive pressure can compress fragile tissues and blood vessels in the surgical field, affecting the accurate interpretation of physiological indicators and even causing collateral damage. Insufficient pressure or angle deviation can lead to poor probe-tissue contact and target area deviation, making it difficult to maintain stable and continuous monitoring. In addition, manually adjusting the probe can easily pull or scratch the sterile protective sleeve, causing it to shift, wrinkle, or even break, thus compromising the integrity of the sterile barrier and posing a risk of contaminating the sterile surgical field. Furthermore, the operator's hands occupy the surrounding space of the surgical field for extended periods, making them prone to interference with surgical instruments and retraction devices, further increasing the complexity of the intraoperative procedure. Summary of the Invention

[0004] The purpose of this invention is to provide an adaptive limiting mechanism for color Doppler ultrasound probes adapted to surgical aseptic techniques, so as to solve the problems of fatigue, poor positioning accuracy, and lack of adaptive limiting in the prior art when manually holding the probe.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques, comprising a main support, side support plates provided on both sides of the main support, an adjustment frame movably installed inside the main support, damping sleeves fixedly installed at both ends of the adjustment frame, an elastic support cloth fixedly connected to the inner wall of the damping sleeve, and a positioning ring provided at the bottom of the outer surface of the elastic support cloth;

[0006] The color Doppler ultrasound probe body is installed inside the adjustment frame through the positioning ring, and the outer surface of the color Doppler ultrasound probe body is covered with an outer sterile protective film.

[0007] Support members are fixedly installed on both sides of the adjustment frame. A first driving part is provided on the upper surface of the support member. A connecting frame is fixedly connected to the output end of the bottom surface of the first driving part.

[0008] A second driving unit is fixedly installed inside the connecting frame. A positioning plate is installed at the output end of one side of the second driving unit. A fixing groove is opened in the middle of one side of the positioning plate. A clamping mechanism is provided inside the fixing groove to fix the positioning plate to the outer surface of the color ultrasound probe body.

[0009] The upper surface of the positioning card plate is provided with an air source control unit, and a limit support cover is fixedly installed on the lower bottom edge of the positioning card plate. Several air supply lines are fixedly connected to one side of the inner wall of the limit support cover, and a fine-tuning airbag is installed on the inner wall of the limit support cover near the end of the air supply line.

[0010] Furthermore, an electrically controlled guide rail is provided on the upper surface of the side support plate, a third drive unit is fixedly installed on one end of the electrically controlled guide rail, and guide sliders are fixedly installed on both sides of the main support, with the guide sliders extending into the interior of the electrically controlled guide rail.

[0011] Furthermore, the side support plate is located at the edge of the bed, and a limiting screw is threaded to the bottom of one side of the side support plate. A limiting pressure plate is provided on one side of the limiting screw, and one side of the limiting pressure plate abuts against the side of the bed.

[0012] Furthermore, the clamping mechanism includes a plurality of clamping airbags, which are equidistantly arranged on the inner wall of the fixed groove, and the clamping airbags are connected to the air source control unit through air pipes.

[0013] Furthermore, a magnetic suction component is fixedly installed on one side of the positioning plate, and the two magnetic suction components that are symmetrical on the left and right sides magnetically attract each other.

[0014] Furthermore, a fixing block is symmetrically fixedly installed on one side of a single positioning plate, and a fixing slot is symmetrically opened on one side of another positioning plate. One side of the fixing block extends into the fixing slot, and the fixing block and the fixing slot engage with each other.

[0015] Furthermore, a square through hole is provided on one side of the damping sleeve, the damping sleeve is sleeved on the outer surface of the main support, an elastic damping element is fixed to the inner wall of the damping sleeve, and the main support and the damping sleeve are slidably fitted together.

[0016] Furthermore, the outer diameter of the top of the limiting support cover is larger than the outer diameter of the bottom, the middle part of one side of the outer surface of the limiting support cover is located inside the positioning ring, the outer diameter of the top of the limiting support cover is larger than the inner diameter of the positioning ring, and the positioning ring and the limiting support cover are engaged with each other.

[0017] Furthermore, the inner diameter of the limiting support cover is larger than the outer diameter of the color Doppler ultrasound probe body, the fine-tuning airbag is located at the bottom of the inner wall of the limiting support cover, the end of the color Doppler ultrasound probe body is located inside the limiting support cover, and the outer surface of the fine-tuning airbag abuts against the outer surface of the outer sterile protective membrane.

[0018] Compared with existing technologies, the adaptive limiting mechanism for color Doppler ultrasound probes adapted to surgical aseptic techniques provided by this invention has the following beneficial effects:

[0019] 1. The present invention uses an integrated clamping and limiting structure composed of a main support, an adjustment frame and a positioning plate, which can replace manual holding and fixing of the color ultrasound probe. It eliminates the need for medical staff to hold and operate for a long time, reduces hand fatigue, and improves the stability and continuity of intraoperative color ultrasound monitoring. Compared with the existing technology, it improves the operational efficiency of long-term monitoring.

[0020] 2. This invention achieves rigid boundary limiting of the maximum depth and deflection angle of the probe through the limiting support cover. With the adaptive inflation and deflation of the fine-tuning airbag on the inner wall, the pressure of the probe can be automatically adjusted within a safe range to maintain constant pressure between the probe and the tissue, avoiding tissue damage due to excessive pressure or blurred imaging due to insufficient pressure. Compared with the existing technology, it improves the adaptability and safety of the probe limiting.

[0021] 3. This invention uses a clamping airbag clamping mechanism in conjunction with an outer sterile protective film to flexibly clamp the probe without damaging the sterile barrier, avoiding the risk of contamination caused by the clamping structure rubbing against the protective sleeve. At the same time, it can be adapted to probes of different diameters, improving the sterile safety and adaptability of the equipment compared with the prior art.

[0022] 4. This invention uses an electrically controlled guide rail to move the main support as a whole, which can adjust the position of the probe in the surgical field over a wide range. Combined with the buffering and damping effect of the damping sleeve and elastic support cloth, it absorbs movement and intraoperative vibration, maintains stable imaging, and improves the convenience of position adjustment and imaging quality compared with the prior art. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the bottom structure of the main support provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall exploded structure provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the adjustment frame structure provided in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the positioning ring structure provided in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of the limiting support cover provided in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the fine-tuning airbag structure provided in an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Main support; 2. Side support plate; 3. Adjustment frame; 4. Damping sleeve; 5. Elastic support cloth; 6. Positioning ring; 7. Color Doppler ultrasound probe body; 8. Outer sterile protective membrane; 9. Support component; 10. First drive unit; 11. Connecting frame; 12. Second drive unit; 13. Positioning plate; 14. Fixing groove; 15. Clamping airbag; 16. Gas source control unit; 17. Limiting support cover; 18. Gas pipeline; 19. Fine-tuning airbag; 20. Magnetic suction component; 21. Fixing block; 22. Fixing slot; 23. Electrically controlled guide rail; 24. Guide slider; 25. Third drive unit; 26. Limiting screw; 27. Limiting pressure plate. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] As attached Figure 1 To be continued Figure 7 As shown:

[0035] Example 1:

[0036] This invention provides an adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques, including a main support 1, side support plates 2 on both sides of the main support 1, an adjustment frame 3 movably installed inside the main support 1, damping sleeves 4 fixedly installed at both ends of the adjustment frame 3, an elastic support cloth 5 fixedly connected to the inner wall of the damping sleeve 4, and a positioning ring 6 at the bottom of the outer surface of the elastic support cloth 5.

[0037] A square through hole is provided on one side of the damping sleeve 4. The damping sleeve 4 is sleeved on the outer surface of the main support 1. An elastic damping element is fixed to the inner wall of the damping sleeve 4. The main support 1 and the damping sleeve 4 are slidably fitted together.

[0038] The color ultrasound probe body 7 is installed inside the adjustment frame 3 through the positioning ring 6, and the outer surface of the color ultrasound probe body 7 is covered with an outer sterile protective film 8.

[0039] Support members 9 are fixedly installed on both sides of the adjustment frame 3. A first drive part 10 is provided on the upper surface of the support member 9. The first drive part 10 is a first electric telescopic rod. A connecting frame 11 is fixedly connected to the output end of the bottom surface of the first drive part 10.

[0040] A second drive unit 12 is fixedly installed inside the connecting frame 11. The second drive unit 12 is a second electric telescopic rod. A positioning plate 13 is installed at the output end on one side of the second drive unit 12. A fixing groove 14 is opened in the middle of one side of the positioning plate 13. A clamping mechanism is provided inside the fixing groove 14 to fix the positioning plate 13 to the outer surface of the color ultrasound probe body 7.

[0041] A gas source control unit 16 is provided on the upper surface of the positioning plate 13. A limit support cover 17 is fixedly installed on the lower bottom edge of the positioning plate 13. Several gas supply lines 18 are fixedly connected to one side of the inner wall of the limit support cover 17. A fine-tuning airbag 19 is installed on the inner wall of the limit support cover 17 near the end of the gas supply line 18.

[0042] The outer diameter of the top of the limiting support cover 17 is larger than the outer diameter of the bottom. The middle part of one side of the outer surface of the limiting support cover 17 is located inside the positioning ring 6. The outer diameter of the top of the limiting support cover 17 is larger than the inner diameter of the positioning ring 6. The positioning ring 6 and the limiting support cover 17 are engaged with each other.

[0043] The inner diameter of the limiting support cover 17 is larger than the outer diameter of the color ultrasound probe body 7. The fine adjustment airbag 19 is located at the bottom of the inner wall of the limiting support cover 17. The end of the color ultrasound probe body 7 is located inside the limiting support cover 17. The outer surface of the fine adjustment airbag 19 abuts against the outer surface of the outer sterile protective membrane 8.

[0044] A magnetic suction component 20 is fixedly installed on one side of the positioning plate 13, and the two symmetrical magnetic suction components 20 magnetically attract each other.

[0045] A fixing block 21 is symmetrically fixedly installed on one side of a single positioning plate 13, and a fixing slot 22 is symmetrically opened on one side of another positioning plate 13. One side of the fixing block 21 extends into the fixing slot 22, and the fixing block 21 and the fixing slot 22 engage with each other.

[0046] Working principle: First, the operator inserts the color Doppler ultrasound probe body 7 from above the adjustment frame 3, through the positioning ring 6, into the adjustment frame 3, and covers the outer sterile protective film 8 on the outer surface of the color Doppler ultrasound probe body 7, so that the protective film completely covers the probe end and the rod body; the positioning plates 13 on both sides are brought closer to the color Doppler ultrasound probe body 7, and the fixing block 21 of one side of the positioning plate 13 is inserted into the fixing slot 22 of the other side of the positioning plate 13, and the magnetic suction parts 20 on both sides attract each other to complete the initial positioning; the air source control unit 16 is activated to inflate the clamping airbag 15 in the fixing groove 14. After the clamping airbag 15 expands, it is evenly pressed against the outer surface of the outer sterile protective film 8, and the positioning plate 13 is firmly clamped on the color Doppler ultrasound probe body 7, completing the assembly of the probe and the limiting mechanism;

[0047] Next, the staff controls the first drive unit 10 to move, which drives the positioning plate 13 and the color ultrasound probe body 7 to move axially through the connecting frame 11, adjusting the insertion depth of the probe; the staff controls the second drive unit 12 to move, which drives the positioning plate 13 to make slight adjustments in the horizontal direction, adjusting the left and right position of the probe; the limiting support cover 17 moves synchronously with the color ultrasound probe body 7, and the middle part of the limiting support cover 17 is engaged in the positioning ring 6, which limits the radial offset of the limiting support cover 17, thereby limiting the maximum deflection angle of the probe;

[0048] Then, during intraoperative monitoring, when the patient's breathing and tissue traction cause the probe to move slightly, the damping sleeves 4 at both ends of the adjustment frame 3 slide along the main support 1, and the elastic damping element on the inner wall generates motion damping. The elastic support cloth 5 simultaneously generates elastic deformation to absorb vibration energy and reduce the shaking and deviation of the probe. The air source control unit 16 adjusts the internal air pressure of the fine-tuning airbag 19 in real time through the air supply line 18. When the tissue bulges, the fine-tuning airbag 19 deflates and retracts accordingly. When the tissue sinks, the fine-tuning airbag 19 inflates and expands accordingly, always maintaining a stable contact pressure between the probe tip and the tissue, and realizing adaptive fine-tuning within the range. When the probe deflects or presses down to the limit position, the outer wall of the limiting support cover 17 abuts against the positioning ring 6 to form a rigid limit, preventing the probe from continuing to deflect or press down, avoiding excessive depth or deviation that could damage the tissue. No manual continuous holding and adjustment is required throughout the entire process.

[0049] Example 2:

[0050] This embodiment is basically the same as the previous embodiment, except that an electrically controlled guide rail 23 is provided on the upper surface of the side support plate 2, a third drive unit 25 is fixedly installed on one side of the electrically controlled guide rail 23, the third drive unit 25 is a servo motor, and guide sliders 24 are fixedly installed on both sides of the main bracket 1, the guide sliders 24 extend into the interior of the electrically controlled guide rail 23.

[0051] The side support plate 2 is located at the edge of the bed. A limit screw 26 is threaded to the bottom of one side of the side support plate 2. A limit pressure plate 27 is provided on one side of the limit screw 26. One side of the limit pressure plate 27 abuts against the side of the bed.

[0052] Working principle: First, the staff places the two side support plates 2 on the two sides of the operating table, and rotates the limiting screw 26 at the bottom of the side support plate 2. The limiting screw 26 feeds along the thread and pushes the limiting pressure plate 27 to the side of the bed until the limiting pressure plate 27 is pressed against the side of the bed, thus completing the fixed installation of the entire limiting mechanism on the operating table.

[0053] Next, the staff controlled the third drive unit 25 to start, the third drive unit 25 drove the electronically controlled guide rail 23 to run, the guide slider 24 slid along the inside of the electronically controlled guide rail 23, driving the main support 1 to move horizontally along the guide rail direction, adjusting the longitudinal position of the color Doppler ultrasound probe body 7 relative to the surgical field, and moving the probe above the target monitoring area.

[0054] Then, when a large-scale scanning is required during the operation, the electrically controlled guide rail 23 continuously drives the main support 1 to move smoothly. The sliding damping between the damping sleeve 4 and the main support 1 can offset the inertial shaking when the movement starts and stops, and avoid large swings at the probe end. After the movement is in place, the main support 1 remains fixed, replacing manual support of the moving probe, reducing the operator's workload, and maintaining imaging stability during the position adjustment process.

[0055] Example 3:

[0056] This embodiment is basically the same as the previous embodiment, except that the clamping mechanism includes a plurality of clamping airbags 15, which are equidistantly arranged on the inner wall of the fixed groove 14, and the clamping airbags 15 are connected to the air source control unit 16 through air pipes.

[0057] Working principle: First, according to the diameter of the color ultrasound probe body 7, the staff presets the inflation pressure of the clamping airbag 15 through the air source control unit 16. After the clamping airbag 15 is inflated, it is evenly wrapped around the outside of the outer sterile protective film 8, flexibly clamping the probe body and avoiding rigid clamping that would scratch the outer sterile protective film 8. At the same time, it is compatible with probe models with different outer diameters.

[0058] Next, during intraoperative monitoring, the gas source control unit 16 inflates the micro-adjustment airbag 19 with a set pressure through the gas supply line 18, so that the micro-adjustment airbag 19 is in contact with the surface of the outer sterile protective membrane 8, providing uniform support pressure for the probe; when the surgical field tissue rises and falls with breathing, the reaction force of the tissue on the probe changes, and the micro-adjustment airbag 19 adaptively compresses or rebounds, driving the probe tip to move slightly forward and backward, always maintaining constant pressure contact between the probe and the tissue;

[0059] Then, when the tissue reaction force increases abnormally and the probe is pressed down to the limit depth, the fine-tuning airbag 19 is compressed to the minimum stroke, and the bottom end face of the limiting support cover 17 is rigidly pressed against the support interface on the tissue side to prevent the probe from being pressed down further, forming overpressure protection; at the same time, the radial inner wall of the limiting support cover 17 limits the maximum deflection angle of the probe, realizing the dual protection of flexible adaptive adjustment and rigid boundary limit, ensuring monitoring stability and operational safety.

[0060] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A color Doppler ultrasound probe adaptive limiting mechanism adapted to surgical aseptic techniques, comprising a main support (1), characterized in that, Side support plates (2) are provided on both sides of the main support (1). An adjustment frame (3) is movably installed inside the main support (1). Damping sleeves (4) are fixedly installed at both ends of the adjustment frame (3). An elastic support cloth (5) is fixedly connected to the inner wall of the damping sleeve (4). A positioning ring (6) is provided at the bottom of the outer surface of the elastic support cloth (5). The color ultrasound probe body (7) is installed inside the adjustment frame (3) through the positioning ring (6), and the outer surface of the color ultrasound probe body (7) is covered with an outer sterile protective film (8). The adjustment frame (3) has a support member (9) fixedly installed on both sides. The support member (9) has a first driving part (10) on its upper surface. A connecting frame (11) is fixedly connected to the output end of the bottom surface of the first driving part (10). The connecting frame (11) is fixedly installed with a second driving part (12). A positioning plate (13) is installed at the output end on one side of the second driving part (12). A fixing groove (14) is provided in the middle of one side of the positioning plate (13). A clamping mechanism is provided inside the fixing groove (14) to fix the positioning plate (13) on the outer surface of the color ultrasound probe body (7). The upper surface of the positioning plate (13) is provided with a gas source control unit (16), and a limit support cover (17) is fixedly installed on the lower bottom edge of the positioning plate (13). Several gas supply lines (18) are fixedly connected to one side of the inner wall of the limit support cover (17), and a fine-tuning airbag (19) is installed on the inner wall of the limit support cover (17) near the end of the gas supply line (18).

2. The adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques according to claim 1, characterized in that, The upper surface of the side support plate (2) is provided with an electrically controlled guide rail (23). A third drive unit (25) is fixedly installed on one side of the electrically controlled guide rail (23). Guide sliders (24) are fixedly installed on both sides of the main support (1). The guide sliders (24) extend into the interior of the electrically controlled guide rail (23).

3. The adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques according to claim 1, characterized in that, The side support plate (2) is located at the edge of the bed. A limit screw (26) is threaded to the bottom of one side of the side support plate (2). A limit pressure plate (27) is provided on one side of the limit screw (26). The limit pressure plate (27) abuts against the side of the bed.

4. The adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques according to claim 1, characterized in that, The clamping mechanism includes a plurality of clamping airbags (15), which are equidistantly arranged on the inner wall of the fixed groove (14), and the clamping airbags (15) are connected to the air source control unit (16) through air pipes.

5. The adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques according to claim 1, characterized in that, A magnetic suction component (20) is fixedly installed on one side of the positioning plate (13), and the two magnetic suction components (20) that are symmetrical on the left and right are magnetically attracted to each other.

6. The adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques according to claim 1, characterized in that, A fixing block (21) is symmetrically fixed on one side of a single positioning plate (13), and a fixing slot (22) is symmetrically opened on one side of another positioning plate (13). One side of the fixing block (21) extends into the fixing slot (22), and the fixing block (21) and the fixing slot (22) engage with each other.

7. The adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques according to claim 1, characterized in that, The damping sleeve (4) has a square through hole on one side. The damping sleeve (4) is sleeved on the outer surface of the main support (1). An elastic damping element is fixed to the inner wall of the damping sleeve (4). The main support (1) and the damping sleeve (4) are slidably fitted together.

8. The adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques according to claim 1, characterized in that, The outer diameter of the top of the limiting support cover (17) is greater than the outer diameter of the bottom. The middle part of one side of the outer surface of the limiting support cover (17) is located inside the positioning ring (6). The outer diameter of the top of the limiting support cover (17) is greater than the inner diameter of the positioning ring (6). The positioning ring (6) and the limiting support cover (17) are engaged with each other.

9. The adaptive limiting mechanism for a color Doppler ultrasound probe adapted to surgical aseptic techniques according to claim 1, characterized in that, The inner diameter of the limiting support cover (17) is larger than the outer diameter of the color ultrasound probe body (7). The fine-tuning airbag (19) is located at the bottom of the inner wall of the limiting support cover (17). The end of the color ultrasound probe body (7) is located inside the limiting support cover (17). The outer surface of the fine-tuning airbag (19) abuts against the outer surface of the outer sterile protective membrane (8).

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