Medical precision infusion device

Abstract

The invention relates to the technical field of medical instruments, in particular to a medical precise infusion device which comprises an infusion tube, an infusion needle is installed on the back face of the infusion tube, a limiting conveying frame is arranged on the outer surface of the infusion tube, a side block is installed on the top face of the limiting conveying frame, and a supporting column is installed on the right side of the side block. The upper surface of the supporting column abuts against the lower surface of a liquid conveying pipe, and a piston ring is installed in the liquid conveying pipe. And the first connecting block is mounted on one side of the surface of the stabilizing frame. According to the clamping device, a self-locking effect is achieved between a worm and a worm gear, so that a second abutting block and a first abutting block can stably clamp an infusion tube and a piston ring, and the infusion tube and the piston ring in the infusion tube can be stably clamped in an abutting mode through the second abutting block and the first abutting block; the piston ring can push the liquid medicine in the infusion tube to carry out infusion operation, so that the liquid medicine in the infusion tube can be stably conveyed through the piston ring.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a medical precision infusion device. Background Art

[0002] The infusion set is a frequently used medical device. In the medical field, the typical representative of portable high-precision human drug infusion is the insulin pump, which is used to treat diabetic patients.

[0003] In this regard, China applied for patent number: CN108273153B, which discloses a self-destructive precision infusion device, including an infusion tube filled with liquid medicine, an infusion needle arranged at the tail end of the infusion tube, and an injection mechanism arranged at the head end of the infusion tube, the injection mechanism including a piston inserted at the head end of the infusion tube for pushing the liquid medicine to feed, a blade arranged at the end of the piston away from the liquid medicine, and a driving mechanism for pulling the infusion tube to feed after the blade is cut, and the blade is fastened to the driving mechanism and extends outside the infusion tube. With this structural design, through the setting of the infusion tube, the piston cross-sectional area can be effectively reduced, the piston stroke can be increased, and the injection accuracy of the liquid medicine can be improved. In addition, through the setting of the injection mechanism, the product structure is greatly simplified, and while the injection accuracy is improved, the production cost of the product is greatly reduced.

[0004] However, in actual use, the infusion tube is not limited during the delivery process, so that an inclination angle will be generated when the infusion tube is subsequently cut by a blade, which will make the upper and lower parts of the infusion tube overall asymmetrical, and the infusion tube will become loose, resulting in the piston not being able to be completely installed inside the infusion tube, causing the medicine to leak out, affecting the subsequent infusion effect. Therefore, the overall infusion has certain limitations. Therefore, it has become an urgent problem to be solved to improve and perfect the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a medical precision infusion device to solve the problem that the infusion tube proposed in the above-mentioned background technology is not limited during the transportation process, so that an inclination angle will be generated when the infusion tube is subsequently cut by a blade, which will make the upper and lower parts of the infusion tube as a whole asymmetrical, so that the infusion tube will become loose, resulting in the piston being unable to be completely installed in the infusion tube, causing the medicine to leak out, affecting the subsequent infusion effect, and thus having certain limitations during the overall infusion.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a medical precision infusion device, comprising an infusion tube, an infusion needle is installed on the back of the infusion tube, a limited conveying frame is arranged on the outer surface of the infusion tube, a side block is installed on the top surface of the limited conveying frame, a support column is installed on the right side of the side block, the upper surface of the support column abuts against the lower surface of the infusion tube, a piston ring is installed inside the infusion tube, a connecting plate is installed on the front surface of the limited conveying frame, and a stabilizing frame is installed on the end of the connecting plate away from the limited conveying frame; A first connecting block, wherein the first connecting block is mounted on one side of the surface of the stabilizing frame, a second connecting block is mounted on the back of the stabilizing frame, a motor body is mounted on the upper surface of the first connecting block, a worm is mounted on the output end of the motor body, a worm is meshedly connected to the back of the worm, a transmission mechanism is mounted on the upper surface of the worm wheel, and a first gear is mounted on the lower end of the transmission mechanism.

[0007] Preferably, the first gear is mounted on the upper surface of the second connecting block, and the right side surface of the first gear is meshedly connected with the second gear.

[0008] Preferably, a first rotating column is installed at the lower end of the second gear passing through the interior of the second connecting block, and a first mounting cylinder is installed on the outer surface of the first rotating column.

[0009] Preferably, a first moving block is installed on the outer surface of the first mounting tube, and a first interference block is installed on the left side surface of the first moving block.

[0010] Preferably, a second rotating column is installed at the lower end of the worm wheel passing through the interior of the first connecting block, and a second mounting cylinder is installed on the outer surface of the second rotating column.

[0011] Preferably, a second moving block is installed on the back of the second mounting cylinder, a second resistance block is installed on the back of the second moving block, the back of the second resistance block resists against the left side surface of the infusion tube, and the left side of the first resistance block resists against the right side surface of the infusion tube.

[0012] Preferably, a mounting block is installed on the front surface of the stabilizing frame, a mounting groove is provided on the inner side wall of the mounting block, a fixing block and a positioning frame are installed in sequence from front to back inside the mounting groove, a clamping column is installed on the right side surface of the stabilizing frame, and two groups of the clamping columns are provided.

[0013] Preferably, a positioning hole is provided inside the positioning frame, and a slitting blade body is installed on the right side surface of the fixing block.

[0014] Preferably, a limiting frame is installed on the right side surface of the slitting blade body, a connecting tube is installed on the back side of the limiting frame, and one end of the connecting tube away from the limiting frame is installed on the front surface of the positioning frame.

[0015] Preferably, a servo motor is installed on the left surface of the mounting block, and the output of the servo motor passes through the interior of the mounting block and is connected to a winding roller.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the medical precision infusion device is performing infusion, there will be liquid medicine inside the infusion tube, and then the infusion tube will pass through the inside of the limiting conveying frame, and the position of the infusion tube will be limited by the limiting conveying frame to ensure the stability of the infusion tube during transportation. At the same time, the limiting conveying frame will pass through the inside of the two groups of clamping columns. When passing between the two groups of clamping columns, the motor body is started, and the worm is driven to rotate by the motor body, and then the worm drives the worm wheel to rotate, and then the worm wheel drives the transmission mechanism to rotate, and at the same time the transmission mechanism drives the first gear to rotate. Since the first gear is meshed with the second gear, the second gear will also rotate, and then the worm wheel will drive the second rotating column and the second mounting barrel to rotate, and the second gear will drive the first rotating column and the first mounting barrel to rotate. At this time, the second mounting barrel will drive the second moving block and the second resistance block to rotate clockwise, and similarly the first mounting barrel will drive the first moving block The piston ring is in a stable state inside the infusion tube when the infusion tube is conveyed, and the medicine liquid inside the infusion tube can be conveyed stably, and the overall conveying effect is good. At the same time, the worm and the worm gear have a self-locking effect, so that the second contact block and the first contact block can stably clamp the infusion tube and the piston ring. The design can stably clamp the infusion tube and the internal piston ring through the second contact block and the first contact block, so that the medicine liquid inside the infusion tube can be stably conveyed through the piston ring, and the piston ring can push the medicine liquid inside the infusion tube for infusion operation, which reflects the functionality of the design.

[0017] 2. When the medical precision infusion device is in use, when the infusion tube is transported forward, the infusion tube will pass through the inside of the two groups of clamping columns, and then the infusion tube will continue to pass through the inside of the positioning hole, and the position of the infusion tube will be limited again by the positioning frame to ensure the stability of the position of the infusion tube during transportation, and then the infusion tube will pass through the inside of the slitting blade body, and the infusion tube can be cut by the slitting blade body, and the overall cutting effect is good, and then the stability between the slitting blade body and the positioning frame can be ensured by the design of the limiting frame and the connecting tube, and then the back The cut infusion tube will be wound around the inside of the winding roller, and the winding roller can be driven to rotate by the servo motor. The cut infusion tube can be wound up by the winding roller, ensuring that the infusion tube can be quickly wound up after cutting, realizing the self-destruction operation of the infusion tube and ensuring the disposable use of the infusion tube. The design can limit the overall delivery position of the infusion tube when cutting the infusion tube through the slitting blade body, and the infusion tube can be squeezed by the clamping column, making subsequent cutting more convenient, which reflects the ingenuity of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the disassembly of the infusion tube and the position-limiting delivery frame structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the stabilizing frame and the mounting block structure of the present invention; Figure 4 It is a three-dimensional schematic diagram of the first connecting block and the transmission mechanism structure of the present invention; Figure 5 It is a three-dimensional schematic diagram of the structure of the second abutment block and the first abutment block of the present invention; Figure 6 It is a three-dimensional schematic diagram of the infusion tube and the position-limiting delivery frame structure of the present invention; Figure 7 It is a three-dimensional schematic diagram of the mounting block and winding roller structure of the present invention; Figure 8 It is a three-dimensional schematic diagram of the slitting blade body and the connecting tube structure of the present invention.

[0019] In the figure: 1. infusion tube; 2. limit conveying frame; 3. side block; 4. support column; 5. piston ring; 6. connecting plate; 7. infusion needle; 8. stabilizing frame; 9. first connecting block; 10. second connecting block; 11. motor body; 12. worm; 13. worm wheel; 14. transmission mechanism; 15. first gear; 16. second gear; 17. first rotating column; 18. first mounting cylinder; 19. first moving block; 20. first interference block; 21. second rotating column; 22. second mounting cylinder; 23. second moving block; 24. second interference block; 25. mounting block; 26. mounting groove; 27. positioning frame; 28. positioning hole; 29. ​​fixing block; 30. slitting blade body; 31. limit frame; 32. connecting cylinder; 33. servo motor; 34. winding roller; 35. clamping column. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 8 , an embodiment provided by the present invention: A medical precision infusion device, the infusion tube 1, infusion needle 7, piston ring 5, motor body 11, slitting blade body 30 and servo motor 33 used in this application are all products that can be directly purchased on the market, and their principles and connection methods are all existing technologies well known to those skilled in the art, so they will not be repeated here, including an infusion tube 1, an infusion needle 7 is installed on the back of the infusion tube 1, a limited conveying frame 2 is arranged on the outer surface of the infusion tube 1, a side block 3 is installed on the top surface of the limited conveying frame 2, a support column 4 is installed on the right side of the side block 3, the upper surface of the support column 4 abuts against the lower surface of the infusion tube 1, a piston ring 5 is installed inside the infusion tube 1, and the front surface of the limited conveying frame 2 A connecting plate 6 is installed, and a stabilizing frame 8 is installed at one end of the connecting plate 6 away from the limiting conveying frame 2, a mounting block 25 is installed on the front surface of the stabilizing frame 8, and a mounting groove 26 is provided on the inner side wall of the mounting block 25, and a fixing block 29 and a positioning frame 27 are installed in sequence from front to back inside the mounting groove 26, a clamping column 35 is installed on the right side surface of the stabilizing frame 8, and two groups of clamping columns 35 are provided, and a positioning hole 28 is provided inside the positioning frame 27, a slitting blade body 30 is installed on the right side surface of the fixing block 29, a limiting frame 31 is installed on the right side surface of the slitting blade body 30, a connecting tube 32 is installed on the back side of the limiting frame 31, and the connecting tube 32 is installed at one end away from the limiting frame 31 A servo motor 33 is installed on the left side surface of the mounting block 25 and is mounted on the front surface of the positioning frame 27. The output of the servo motor 33 passes through the interior of the mounting block 25 and is connected to a winding roller 34. When the infusion tube 1 is transported forward, the infusion tube 1 passes through the interior of the two groups of clamping columns 35, and then the infusion tube 1 continues to pass through the interior of the positioning hole 28. The position of the infusion tube 1 is limited again by the positioning frame 27 to ensure the stability of the position of the infusion tube 1 during transportation. Then the infusion tube 1 passes through the interior of the slitting blade body 30, and the infusion tube 1 can be cut by the slitting blade body 30, and the overall cutting effect is good. Then, the limiting frame 31 and the connecting tube 32 are used to cut the infusion tube 1. The design can ensure the stability between the slitting blade body 30 and the positioning frame 27. Then, the infusion tube 1 after back cutting will be wound inside the winding roller 34. The servo motor 33 can drive the winding roller 34 to rotate. The winding roller 34 can be used to reel in the infusion tube 1 after cutting, ensuring that the infusion tube 1 can be quickly reeled in after cutting, realizing the self-destruction operation of the infusion tube 1, and ensuring the disposable use of the infusion tube 1. When the infusion tube 1 is cut by the slitting blade body 30, the overall conveying position of the infusion tube 1 can be limited. At the same time, the infusion tube 1 can be squeezed by the clamping column 35, making the subsequent cutting more convenient. A first connecting block 9 is mounted on one side of the surface of the stabilizing frame 8, a second connecting block 10 is mounted on the back of the stabilizing frame 8, a motor body 11 is mounted on the upper surface of the first connecting block 9, a worm 12 is mounted on the output end of the motor body 11, a worm 13 is meshedly connected to the back of the worm 12, a transmission mechanism 14 is mounted on the upper surface of the worm gear 13, a first gear 15 is mounted on the lower end of the transmission mechanism 14, the first gear 15 is mounted on the upper surface of the second connecting block 10, a second gear 16 is meshedly connected to the right side surface of the first gear 15, a first rotating column 17 is mounted on the lower end of the second gear 16 passing through the interior of the second connecting block 10, a first mounting cylinder 18 is mounted on the outer surface of the first mounting cylinder 18, and a first gear 15 is mounted on the outer surface of the first mounting cylinder 18. A moving block 19, a first abutment block 20 is installed on the left side surface of the first moving block 19, the lower end of the worm gear 13 passes through the interior of the first connecting block 9 and is installed with a second rotating column 21, the outer surface of the second rotating column 21 is installed with a second mounting cylinder 22, a second moving block 23 is installed on the back of the second mounting cylinder 22, a second abutment block 24 is installed on the back of the second moving block 23, the back of the second abutment block 24 abuts against the left side surface of the infusion tube 1, and the left side of the first abutment block 20 abuts against the right side surface of the infusion tube 1. When infusion is performed, there will be liquid medicine inside the infusion tube 1, and then the infusion tube 1 will pass through the interior of the limiting conveying frame 2, and the position of the infusion tube 1 will be limited by the limiting conveying frame 2 to ensure the stability of the infusion tube 1 during transportation, while limiting The conveying frame 2 will pass through the inside of the two groups of clamping columns 35. When passing between the two groups of clamping columns 35, the motor body 11 is started to drive the worm 12 to rotate, and then the worm 12 will drive the worm wheel 13 to rotate, and then the worm wheel 13 will drive the transmission mechanism 14 to rotate, and at the same time the transmission mechanism 14 will drive the first gear 15 to rotate. Since the first gear 15 is meshed with the second gear 16, the second gear 16 will also rotate, and then the worm wheel 13 will drive the second rotating column 21 and the second mounting cylinder 22 to rotate, and the second gear 16 will drive the first rotating column 17 and the first mounting cylinder 18 to rotate. At this time, the second mounting cylinder 22 will drive the second moving block 23 and the second interference block 24 to rotate clockwise, and similarly, the first mounting cylinder 22 will drive the second moving block 23 and the second interference block 24 to rotate clockwise. The barrel 18 will drive the first moving block 19 and the first resistance block 20 to rotate counterclockwise, and then the second resistance block 24 and the first resistance block 20 will both resist the left and right outer surfaces of the infusion tube 1, and at the same time, the second resistance block 24 and the first resistance block 20 will resist the piston ring 5 inside the infusion tube 1, and by limiting the position of the piston ring 5, when the infusion tube 1 is conveying, the infusion tube 1 moves forward at this time, and the piston ring 5 will also be in a stable state inside the infusion tube 1, so that the medicine inside the infusion tube 1 can be stably conveyed, and the overall conveying effect is good. At the same time, the worm 12 and the worm wheel 13 have a self-locking effect, so that the second resistance block 24 and the first resistance block 20 can stably clamp the infusion tube 1 and the piston ring 5.This design can stably clamp the infusion tube 1 and the piston ring 5 inside through the second contact block 24 and the first contact block 20, so that the liquid medicine inside the infusion tube 1 can be stably transported through the piston ring 5, and the piston ring 5 can push the liquid medicine inside the infusion tube 1 to perform the infusion operation.

[0022] Working principle: during infusion, there will be liquid medicine inside the infusion tube 1, and then the infusion tube 1 will pass through the inside of the limiting conveying frame 2, and the position of the infusion tube 1 will be limited by the limiting conveying frame 2 to ensure the stability of the infusion tube 1 during transportation. At the same time, the limiting conveying frame 2 will pass through the inside of the two groups of clamping columns 35. When passing between the two groups of clamping columns 35, the motor body 11 is started, and the worm 12 is driven by the motor body 11 to rotate, and then the worm 12 drives the worm wheel 13 to rotate, and then the worm wheel 13 drives the transmission mechanism 14 to rotate, and at the same time the transmission mechanism 14 drives the first gear 15 to rotate, and since the first gear 15 is meshed with the second gear 16, the second gear 16 will also rotate, and then the worm wheel 13 will drive the second rotating column 21 and the second mounting cylinder 22 to rotate, and the second gear 16 will drive the first rotating column 17 and the first When the mounting cylinder 18 rotates, the second mounting cylinder 22 will drive the second moving block 23 and the second resistance block 24 to rotate clockwise. Similarly, the first mounting cylinder 18 will drive the first moving block 19 and the first resistance block 20 to rotate counterclockwise. Then the second resistance block 24 and the first resistance block 20 will both resist the left and right outer surfaces of the infusion tube 1. At the same time, the second resistance block 24 and the first resistance block 20 will resist the piston ring 5 inside the infusion tube 1. By limiting the position of the piston ring 5, when the infusion tube 1 is conveyed, the infusion tube 1 moves forward at this time, and the piston ring 5 will also be in a stable state inside the infusion tube 1, so that the medicine inside the infusion tube 1 can be stably conveyed. At the same time, the worm 12 and the worm wheel 13 have a self-locking effect, so that the second resistance block 24 and the first resistance block 20 can stably clamp the infusion tube 1 and the piston ring 5. When the infusion tube 1 is transported forward, the infusion tube 1 will pass through the inside of the two groups of clamping columns 35, and then the infusion tube 1 will continue to pass through the inside of the positioning hole 28, and the position of the infusion tube 1 will be limited again by the positioning frame 27 to ensure the stability of the position of the infusion tube 1 during transportation, and then the infusion tube 1 will pass through the inside of the slitting blade body 30, and the infusion tube 1 can be cut by the slitting blade body 30, and then the stability between the slitting blade body 30 and the positioning frame 27 can be ensured by the design of the limiting frame 31 and the connecting tube 32, and then the infusion tube 1 after the back cut will be wound around the inside of the winding roller 34, and the winding roller 34 can be driven to rotate by the servo motor 33, and the cut infusion tube 1 can be wound up by the winding roller 34, ensuring that the infusion tube 1 can be quickly wound up after cutting. The above is all the working principles of the present invention.

[0023] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A medical precision infusion device, comprising an infusion tube (1), an infusion needle (7) being mounted on the back of the infusion tube (1), characterized in that: A limited conveying frame (2) is arranged on the outer surface of the infusion tube (1), a side block (3) is installed on the top surface of the limited conveying frame (2), a support column (4) is installed on the right side of the side block (3), the upper surface of the support column (4) abuts against the lower surface of the infusion tube (1), a piston ring (5) is installed inside the infusion tube (1), a connecting plate (6) is installed on the front surface of the limited conveying frame (2), and a stabilizing frame (8) is installed on the end of the connecting plate (6) away from the limited conveying frame (2); A first connecting block (9), wherein the first connecting block (9) is mounted on one side of a surface of a stabilizing frame (8), a second connecting block (10) is mounted on the back of the stabilizing frame (8), a motor body (11) is mounted on the upper surface of the first connecting block (9), a worm (12) is mounted on the output end of the motor body (11), a worm wheel (13) is meshingly connected to the back of the worm (12), a transmission mechanism (14) is mounted on the upper surface of the worm wheel (13), and a first gear (15) is mounted on the lower end of the transmission mechanism (14).

2. A medical precision infusion device according to claim 1, characterized in that: The first gear (15) is mounted on the upper surface of the second connecting block (10), and the right side surface of the first gear (15) is meshingly connected with the second gear (16).

3. A medical precision infusion device according to claim 2, characterized in that: The lower end of the second gear (16) passes through the interior of the second connecting block (10) and is provided with a first rotating column (17), and the outer surface of the first rotating column (17) is provided with a first mounting cylinder (18).

4. A medical precision infusion device according to claim 3, characterized in that: A first moving block (19) is mounted on the outer surface of the first mounting cylinder (18), and a first resisting block (20) is mounted on the left side surface of the first moving block (19).

5. A medical precision infusion device according to claim 1, characterized in that: The lower end of the worm wheel (13) passes through the interior of the first connecting block (9) and is provided with a second rotating column (21), and the outer surface of the second rotating column (21) is provided with a second mounting cylinder (22).

6. A medical precision infusion device according to claim 5, characterized in that: A second moving block (23) is mounted on the back of the second mounting cylinder (22), a second abutting block (24) is mounted on the back of the second moving block (23), the back of the second abutting block (24) abuts against the left side surface of the infusion tube (1), and the left side of the first abutting block (20) abuts against the right side surface of the infusion tube (1).

7. A medical precision infusion device according to claim 1, characterized in that: A mounting block (25) is mounted on the front surface of the stabilizing frame (8), a mounting groove (26) is formed on the inner side wall of the mounting block (25), a fixing block (29) and a positioning frame (27) are mounted in sequence from front to back inside the mounting groove (26), and a clamping column (35) is mounted on the right side surface of the stabilizing frame (8), and two groups of the clamping columns (35) are provided.

8. A medical precision infusion device according to claim 7, characterized in that: A positioning hole (28) is provided inside the positioning frame (27), and a slitting blade body (30) is mounted on the right side surface of the fixing block (29).

9. A medical precision infusion device according to claim 8, characterized in that: A limiting frame (31) is mounted on the right side surface of the slitting blade body (30), a connecting tube (32) is mounted on the back side of the limiting frame (31), and an end of the connecting tube (32) away from the limiting frame (31) is mounted on the front surface of the positioning frame (27).

10. A medical precision infusion device according to claim 7, characterized in that: A servo motor (33) is mounted on the left surface of the mounting block (25), and the output of the servo motor (33) passes through the interior of the mounting block (25) and is connected to a winding roller (34).

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