Electric pressurizing device
The servo motor in the electric charger drives the sliding rod and the L-shaped block to control the movement of the piston rod, which solves the problem of difficulty in manually controlling the piston rod, and achieves a more labor-saving and accurate balloon expansion operation.
Patent Information
- Application Number
- CN202422279642.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-19
AI Technical Summary
During the balloon expansion, due to the existence of squeeze pressure at the coronary artery stenosis, it is difficult to control the piston rod movement, the labor intensity is high and the movement distance of the piston rod cannot be accurately controlled, resulting in poor balloon expansion effect.
Using an electric charger, the first screw is driven by a servo motor to drive the sliding rod to move in the tube body, and the piston rod is pushed or pulled through the L-shaped block to pump or pump air in the air cylinder, and precise control is achieved by combining the positioning device and the pressure gauge.
It reduces the labor intensity of manual operation, improves the accuracy of piston rod movement and the use effect of the charger.
Smart Images
Figure CN223190568U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to an electric charger. Background Art
[0002] Balloon angioplasty is a minimally invasive endoscopic procedure commonly used to treat various stenotic or obstructive diseases, such as cardiovascular, respiratory, and digestive tract diseases. During the procedure, the doctor inserts a catheter with a balloon into the stenosis or obstruction and then inflates the balloon to expand the narrowed passage.
[0003] When expanding the balloon, medical staff usually hold the inflation cylinder and push the piston rod inside the inflation cylinder to pump the air inside the piston cylinder into the balloon to expand the balloon. However, when the piston rod is moved manually, due to the squeezing force at the narrowed coronary artery, it is difficult to control the movement of the piston rod. The labor intensity is high and the movement distance of the piston rod cannot be accurately controlled, resulting in poor effect of balloon expansion. Utility Model Content
[0004] The technical problem to be solved by the present invention is that when the piston rod is manually pushed to move, due to the squeezing pressure at the narrowed part of the coronary artery, it is difficult to control the movement of the piston rod, the labor intensity is high, and the moving distance of the piston rod cannot be accurately controlled, resulting in poor effect during balloon expansion.
[0005] The technical solution adopted by the utility model to solve its technical problems is: an electric inflator, including a tube body, one end of the tube body is fixedly connected to a handle, one side of the handle is provided with a plurality of control buttons, a pressure device is provided inside the tube body, one end of the tube body is provided with an air cylinder with the help of a positioning device, the inner wall of the air cylinder is slidably connected to a piston rod, one end of the air cylinder is provided with a pressure gauge, the pressure device includes a servo motor, the servo motor is located at one end of the inner wall of the tube body, the output end of the servo motor is fixedly connected to a first screw, the bottom end of the inner wall of the tube body A rectangular block is fixedly connected, and one end of the first screw away from the servo motor rotates on one side of the rectangular block. The outer surface of the first screw is threadedly connected to a sliding rod, and one side of the sliding rod slides on the top of the rectangular block. One end of the sliding rod is fixedly connected to an L-shaped block, and the inner wall of the L-shaped block is slidably connected to a slider. Two springs are provided at the bottom end of the slider, and the upper and lower ends of the spring are fixedly connected to the bottom end of the slider and the bottom end of the inner wall of the L-shaped block respectively. The bottom end of the slider is fixedly connected to a pull rod, and the outer surface of the pull rod slides on the inner wall of the L-shaped block and the inner wall of the tube body.
[0006] The effect achieved by the above components is as follows: when using the inflator, insert the end of the air cylinder toward the piston rod into the tube body, and at the same time pull the pull rod to control the slider to slide downward on the inner wall of the L-shaped block and compress the two springs, so that the push block at the tail of the piston rod is located between the L-shaped block and the slider, release the pull rod and the two springs return to their original state, push the slider to move upward, and clamp the push block at the tail of the piston rod between the L-shaped block and the slider, push the air cylinder so that one end of the air cylinder contacts one side of the two blocks on the inner wall of the tube body, and then fix the position of the air cylinder inside the tube body through the positioning device, connect one end of the balloon tube to one end of the air cylinder, and finally hold the outer surface of the handle and press the control button to operate the servo The motor drives the first screw to rotate through the output end of the servo motor, so that the sliding rod moves on the outer surface of the first screw and the top of the rectangular block, and pushes the piston rod to move inside the air cylinder through the L-shaped block to pump the air inside the air cylinder into the balloon tube to expand the balloon. The pressure index is observed by the pressure gauge. After the balloon tube is used, the servo motor is operated again to drive the first screw to rotate in the other direction, so that the sliding rod moves toward the inside of the tube body, and the piston rod is pulled away from the cylinder body through the slider and the L-shaped block to slide the piston rod in the direction away from the cylinder body to extract the air inside the balloon, and then the pull rod is pulled to move the slider downward, thereby releasing the positioning device from fixing the position of the air cylinder, and removing the air cylinder and the piston rod from the inside of the tube body.
[0007] Preferably, the inner wall of the L-shaped block is fixedly connected to two round rods, the slider slides on the outer surface of the round rod, and the two springs are respectively located on the outside of the two round rods.
[0008] The effect achieved by the above components is that when the slider moves and the spring is deformed, the spring will move outside the round rod. The round rod can reinforce the internal shape of the spring, thereby avoiding spring distortion and affecting normal use as much as possible.
[0009] Preferably, positioning rods are fixedly connected to both sides of the sliding rod, and one end of the positioning rod slides on one side of the inner wall of the tube body.
[0010] The effect achieved by the above components is: when the servo motor drives the first screw to rotate so that the sliding rod moves, one end of the positioning rod on both sides of the sliding rod will slide on the inner wall of the tube body, limiting the angle between the sliding rod and the tube body, and avoiding shaking of the sliding rod when it moves as much as possible.
[0011] Preferably, the bottom end of the pull rod is fixedly connected to a slot block, and the outer surface of the slot block is provided with two grooves.
[0012] The effect achieved by the above components is that by pinching the two grooves on the outer surface of the slot block, the slot block can be pulled more conveniently to control the movement of the pull rod and the slider.
[0013] Preferably, the positioning device includes two second screws, the thread directions of the outer surfaces of the two second screws are opposite, one side of the tube body is rotatably connected to a threaded barrel, the two ends of the inner wall of the threaded barrel are respectively threadedly connected to the outer surfaces of the two second screws, the end of the second screw away from the threaded barrel is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to an oblique rod, and the end of the oblique rod away from the connecting rod is fixedly connected to a pressure block.
[0014] The effect achieved by the above components is: after the air cylinder is inserted into the tube body, the threaded barrel is pushed to rotate so that the two second screws move in the same direction on the inner wall of the threaded barrel, and the connecting rod drives the inclined rod and the pressure block to move so that the sides of the two pressure blocks close to each other are pressed tightly against the upper and lower sides of the outer surface of the air cylinder, thereby fixing the position of the air cylinder inside the tube body.
[0015] Preferably, a plurality of convex strips are fixedly connected to one side of the pressing block, and the convex strips are made of rubber material.
[0016] The effect achieved by the above components is that by providing the rubber convex strips, the pressure block is pressed against the outer surface of the air cylinder, making the position of the air cylinder in the tube body more stable and less likely to slide accidentally.
[0017] Preferably, one side of the connecting rod is fixedly connected to an L-shaped rod, and both ends of the L-shaped rod are fixedly connected to one side of the oblique rod and one side of the connecting rod respectively.
[0018] The effect achieved by the above components is: by providing the L-shaped rod, the connection between the diagonal rod and the connecting rod can be reinforced and supported, thereby improving the stability of the connection between the connecting rod and the diagonal rod.
[0019] Preferably, a plurality of rectangular strips are fixedly connected to the outer surface of the threaded barrel, and the rectangular strips are distributed in a circular pattern on the outer surface of the threaded barrel.
[0020] The above components have the following effects: it is more convenient to push the threaded barrel to rotate by pressing the rectangular strip on the outer surface of the threaded barrel with your hand, and your hand is not likely to slip.
[0021] The beneficial effects of the utility model are:
[0022] The pressure-applying device of the present invention can control the forward and reverse rotation of the first screw by operating the servo motor to drive the sliding rod to move inside the tube body, and push or pull the piston rod by the L-shaped block to control the movement of the piston rod inside the air cylinder to inflate or exhaust air. Compared with the manual control method of the piston rod, it is more labor-saving and can control the movement of the piston rod more accurately, thereby improving the use effect of the inflator. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;
[0025] Figure 2 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the pipe body of the present invention;
[0026] Figure 3 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the pipe body of the present invention;
[0027] Figure 4 It is a schematic diagram of the partial cross-section of the L-shaped block of the utility model;
[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the threaded barrel of the utility model.
[0029] Legend: 1. Tube body; 2. Pressure-applying device; 3. Positioning device; 4. Handle; 5. Control button; 6. Air cylinder; 7. Piston rod; 8. Pressure gauge; 21. Servo motor; 22. First screw; 23. Rectangular block; 24. Sliding rod; 25. L-shaped block; 26. Slider; 27. Spring; 28. Pull rod; 29. Stop block; 210. Round rod; 211. Positioning rod; 212. Slot block; 31. Threaded barrel; 32. Second screw; 33. Connecting rod; 34. Oblique rod; 35. Pressure block; 36. Raised strip; 37. L-shaped rod; 38. Rectangular strip. DETAILED DESCRIPTION
[0030] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0031] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0032] Figure 1 and Figure 2 The electric inflator shown includes a tube body 1, one end of the tube body 1 is fixedly connected to a handle 4, one side of the handle 4 is provided with several control buttons 5, a pressure device 2 is provided inside the tube body 1, one end of the tube body 1 is provided with an air cylinder 6 with the aid of a positioning device 3, the inner wall of the air cylinder 6 is slidably connected to a piston rod 7, and one end of the air cylinder 6 is provided with a pressure gauge 8.
[0033] Figure 2-4The pressure-applying device 2 shown includes a servo motor 21, which is located at one end of the interior of the tube body 1. The output end of the servo motor 21 is fixedly connected to a first screw 22, and the bottom end of the inner wall of the tube body 1 is fixedly connected to a rectangular block 23. The end of the first screw 22 away from the servo motor 21 rotates on one side of the rectangular block 23. The outer surface of the first screw 22 is threadedly connected to a sliding rod 24, and one side of the sliding rod 24 slides on the top of the rectangular block 23. One end of the sliding rod 24 is fixedly connected to an L-shaped block 25, and the inner wall of the L-shaped block 25 is slidably connected to a slider 26. Two springs 27 are provided at the bottom end of the slider 26, and the upper and lower ends of the spring 27 are respectively connected to the bottom end of the slider 26 and the inner wall of the L-shaped block 25. The bottom end is fixedly connected, and the bottom end of the slider 26 is fixedly connected to a pull rod 28, and the outer surface of the pull rod 28 slides on the inner wall of the L-shaped block 25 and the inner wall of the tube body 1. When using the inflator, the air cylinder 6 is inserted into the tube body 1 toward one end of the piston rod 7, and the pull rod 28 is pulled at the same time to control the slider 26 to slide downward on the inner wall of the L-shaped block 25 and compress the two springs 27, so that the push block at the tail of the piston rod 7 is located between the L-shaped block 25 and the slider 26. Release the pull rod 28 and the two springs 27 to restore the original state, pushing the slider 26 to move upward to clamp the push block at the tail of the piston rod 7 between the L-shaped block 25 and the slider 26, pushing the air cylinder 6 so that one end of the air cylinder 6 contacts one side of the two blocks 29 on the inner wall of the tube body 1, and then through the fixed The positioning device 3 fixes the position of the air cylinder 6 inside the tube body 1, connects one end of the balloon tube to one end of the air cylinder 6, and finally holds the outer surface of the handle 4 and presses the control button 5 to operate the servo motor 21. The output end of the servo motor 21 drives the first screw 22 to rotate, so that the sliding rod 24 moves on the outer surface of the first screw 22 and the top of the rectangular block 23. The piston rod 7 is pushed to move inside the air cylinder 6 through the L-shaped block 25 to pump the air inside the air cylinder 6 into the balloon tube to inflate the balloon. The pressure index is observed by the pressure gauge 8. After the balloon tube is used, the servo motor 21 is operated again to drive the first screw 22 to rotate in the other direction, so that the sliding rod 24 moves toward the inside of the tube body 1. The slider 26 and the L-shaped block 25 pull the piston rod 7 to slide away from the cylinder to extract the air inside the balloon, and then pull the pull rod 28 to move the slider 26 downward, release the positioning device 3 from fixing the position of the air cylinder 6, and take the air cylinder 6 and the piston rod 7 out from the inside of the tube body 1. By setting up a pressure-applying device 2, when using the balloon tube, the servo motor 21 is operated to control the first screw 22 to move forward and reversely to drive the sliding rod 24 to move inside the tube body 1. The L-shaped block 25 pushes or pulls the piston rod 7 to control the movement of the piston rod 7 inside the air cylinder 6 to inflate or exhaust air. Compared with manual control of the piston rod 7, it is more labor-saving and can more accurately control the movement of the piston rod 7, thereby improving the use effect of the inflator.
[0034] Figure 2-4The inner wall of the L-shaped block 25 shown is fixedly connected to two round rods 210, and the slider 26 slides on the outer surface of the round rod 210. The two springs 27 are respectively located on the outside of the two round rods 210. When the slider 26 moves to deform the spring 27, the spring 27 will move on the outside of the round rod 210. The internal shape of the spring 27 can be reinforced by the round rod 210 to avoid the distortion of the spring 27 and affect normal use as much as possible.
[0035] Figure 2-4 The two sides of the sliding rod 24 shown are fixedly connected with positioning rods 211, and one end of the positioning rod 211 slides on one side of the inner wall of the tube body 1. When the servo motor 21 drives the first screw 22 to rotate to move the sliding rod 24, one end of the positioning rods 211 on both sides of the sliding rod 24 will slide on the inner wall of the tube body 1, thereby limiting the angle between the sliding rod 24 and the tube body 1, and avoiding shaking of the sliding rod 24 when moving as much as possible. The bottom end of the pull rod 28 is fixedly connected with a groove block 212, and the outer surface of the groove block 212 is provided with two grooves. Pinching the two grooves on the outer surface of the groove block 212 can more conveniently pull the groove block 212 to control the movement of the pull rod 28 and the slider 26.
[0036] Figure 1 、 Figure 2 、 Figure 3 and Figure 5 The positioning device 3 shown includes two second screws 32, the outer surfaces of the two second screws 32 have opposite thread directions, and one side of the tube body 1 is rotatably connected to a threaded barrel 31, and the two ends of the inner wall of the threaded barrel 31 are respectively threadedly connected to the outer surfaces of the two second screws 32, and the end of the second screw 32 away from the threaded barrel 31 is fixedly connected to a connecting rod 33, and one end of the connecting rod 33 is fixedly connected to an inclined rod 34, and the end of the inclined rod 34 away from the connecting rod 33 is fixedly connected to a pressing block 35. After the air cylinder 6 is inserted into the interior of the tube body 1, the threaded barrel 31 is pushed to rotate so that the two second screws 32 move in the same direction on the inner wall of the threaded barrel 31, and the inclined rod 34 and the pressing block 35 are driven to move by the connecting rod 33 to press the sides of the two pressing blocks 35 close to each other onto the upper and lower sides of the outer surface of the air cylinder 6, thereby fixing the position of the air cylinder 6 inside the tube body 1.
[0037] Figure 3 and Figure 5 One side of the shown pressure block 35 is fixedly connected with a plurality of ridges 36, which are made of rubber material. By providing the ridges 36 made of rubber material, the pressure block 35 is pressed against the outer surface of the air cylinder 6, and the position of the air cylinder 6 in the tube body 1 is fixed more stably and not prone to accidental sliding. One side of the connecting rod 33 is fixedly connected with an L-shaped rod 37, and the two ends of the L-shaped rod 37 are respectively fixedly connected to one side of the oblique rod 34 and one side of the connecting rod 33. By providing the L-shaped rod 37, the connection between the oblique rod 34 and the connecting rod 33 can be reinforced and supported, thereby improving the connection stability between the connecting rod 33 and the oblique rod 34.
[0038] Figure 3 and Figure 5 The outer surface of the threaded barrel 31 shown is fixedly connected with a plurality of rectangular strips 38, which are distributed circumferentially on the outer surface of the threaded barrel 31. It is more convenient to push the threaded barrel 31 to rotate by pressing the rectangular strips 38 on the outer surface of the threaded barrel 31 with your hands without slipping.
[0039] The two springs 27 are released to restore the original position, pushing the slider 26 to move upward, clamping the push block at the tail of the piston rod 7 between the L-shaped block 25 and the slider 26, pushing the cylinder 6 so that one end of the cylinder 6 contacts one side of the two stops 29 on the inner wall of the tube body 1, pushing the threaded cylinder 31 to rotate so that the two second screws 32 move in the same direction on the inner wall of the threaded cylinder 31, and driving the inclined rod 34 and the pressure block 35 to move through the connecting rod 33 so that the sides of the two pressure blocks 35 that are close to each other are pressed tightly against the upper and lower sides of the outer surface of the cylinder 6, fixing the position of the cylinder 6 inside the tube body 1 and connecting one end of the balloon tube to one end of the cylinder 6. Afterwards, the servo motor 21 is operated by pressing the control button 5 on the outer surface of the handle 4, and the first screw 22 is driven to rotate by the output end of the servo motor 21, so that the sliding rod 24 moves on the outer surface of the first screw 22 and the top end of the rectangular block 23, and the piston rod 7 is pushed to move inside the air cylinder 6 through the L-shaped block 25 to pump the air inside the air cylinder 6 into the balloon tube to inflate the balloon, and the pressure index is observed by the pressure gauge 8. After the balloon tube is used, the servo motor 21 is operated again to drive the first screw 22 to rotate in the other direction, so that the sliding rod 24 moves toward the inside of the tube body 1, and the piston rod 7 is pulled to slide away from the cylinder body through the slider 26 and the L-shaped block 25 to extract the air inside the balloon, and then the pull rod 28 is pulled to move the slider 26 downward, pushing the threaded cylinder 31 to rotate and control the two second screws 32 to drive the pressing blocks 35 away from each other, releasing the position fixation of the air cylinder 6, and taking the air cylinder 6 and the piston rod 7 out of the tube body 1.
[0040] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. An electric charger, comprising a tube body (1), characterized in that: One end of the tube body (1) is fixedly connected to a handle (4), and a plurality of control buttons (5) are provided on one side of the handle (4). A pressure-applying device (2) is provided inside the tube body (1). One end of the tube body (1) is provided with an air cylinder (6) by means of a positioning device (3). The inner wall of the air cylinder (6) is slidably connected to a piston rod (7). One end of the air cylinder (6) is provided with a pressure gauge (8). The pressure-applying device (2) includes a servo motor (21). The servo motor (21) is located at one end inside the tube body (1). The output end of the servo motor (21) is fixedly connected to a first screw (22). The bottom end of the inner wall of the tube body (1) is fixedly connected to a rectangular block (23). The end of the first screw (22) away from the servo motor (21) is fixedly connected to the rectangular block ( 23), the outer surface of the first screw rod (22) is threadedly connected to the sliding rod (24), one side of the sliding rod (24) slides on the top of the rectangular block (23), one end of the sliding rod (24) is fixedly connected to the L-shaped block (25), the inner wall of the L-shaped block (25) is slidably connected to the slider (26), the bottom end of the slider (26) is provided with two springs (27), the upper and lower ends of the spring (27) are respectively fixedly connected to the bottom end of the slider (26) and the bottom end of the inner wall of the L-shaped block (25), the bottom end of the slider (26) is fixedly connected to the pull rod (28), the outer surface of the pull rod (28) slides on the inner wall of the L-shaped block (25) and the inner wall of the tube body (1), and the inner walls of the tube body (1) are fixedly connected with stoppers (29).
2. An electric charger according to claim 1, characterized in that: Two round rods (210) are fixedly connected to the inner wall of the L-shaped block (25), the slider (26) slides on the outer surface of the round rod (210), and the two springs (27) are respectively located on the outer sides of the two round rods (210).
3. An electric charger according to claim 2, characterized in that: Positioning rods (211) are fixedly connected to both sides of the sliding rod (24), and one end of the positioning rod (211) slides on one side of the inner wall of the tube body (1).
4. An electric charger according to claim 3, characterized in that: The bottom end of the pull rod (28) is fixedly connected to a slot block (212), and the outer surface of the slot block (212) is provided with two grooves.
5. An electric charger according to claim 4, characterized in that: The positioning device (3) comprises two second screw rods (32), the threads of the outer surfaces of the two second screw rods (32) are in opposite directions, one side of the tube body (1) is rotatably connected to a threaded barrel (31), the inner wall ends of the threaded barrel (31) are respectively threadedly connected to the outer surfaces of the two second screw rods (32), one end of the second screw rod (32) away from the threaded barrel (31) is fixedly connected to a connecting rod (33), one end of the connecting rod (33) is fixedly connected to an inclined rod (34), and the end of the inclined rod (34) away from the connecting rod (33) is fixedly connected to a pressing block (35).
6. An electric charger according to claim 5, characterized in that: A plurality of convex strips (36) are fixedly connected to one side of the pressing block (35), and the convex strips (36) are made of rubber material.
7. An electric charger according to claim 6, characterized in that: One side of the connecting rod (33) is fixedly connected to an L-shaped rod (37), and both ends of the L-shaped rod (37) are respectively fixedly connected to one side of the oblique rod (34) and one side of the connecting rod (33).
8. An electric charger according to claim 7, characterized in that: A plurality of rectangular strips (38) are fixedly connected to the outer surface of the threaded barrel (31), and the rectangular strips (38) are distributed in a circular pattern on the outer surface of the threaded barrel (31).