Deep vein prevent fool puncture system

Abstract

The application discloses a deep vein anti-fumble puncture system and relates to the field of deep vein puncture auxiliary tools, which comprises a top plate and a bottom plate arranged in an up-down mode, two symmetrically-arranged butt shafts arranged on the outer sides of the top plate and the bottom plate, the axis of each butt shaft being located on the central plane of the top plate and the bottom plate, two second connecting plates being hingedly arranged between each butt shaft and the top plate, a first connecting plate being hingedly arranged between each butt shaft and the bottom plate, and a straight groove for guiding a guide wire to pass through being formed in the end face of the bottom plate close to the top plate. In the application, the guide wire can be located between the top plate and the bottom plate through the action of the connecting component, the guide wire can be pushed through the pushing component, the trigger component is started when the guide wire leaves between the top plate and the bottom plate, the buzzer starts to alarm at the moment, the medical staff is informed that the guide wire is in a separated state from the top plate and the bottom plate and is not limited, and the medical staff is prompted to be careful that the guide wire completely enters the blood vessel.

Description

Technical Field

[0001] This invention relates to the field of deep vein puncture auxiliary tools, specifically a deep vein puncture prevention system. Background Technology

[0002] Deep vein catheterization is a percutaneous procedure involving puncturing the internal jugular vein, subclavian vein, or femoral vein to insert a catheter into the superior or inferior vena cava near the right atrium. It is a core invasive clinical procedure. During the procedure, a puncture site is created using a puncture needle. A guidewire is then inserted into the vein through the needle's cannula. While maintaining the guidewire's position, the needle is removed. After dilating the skin at the puncture site, a two- or three-way stopcock is inserted into the vein guided by the guidewire. Once the stopcock is in place, the guidewire is removed, and the stopcock is finally sutured to the skin tissue for fixation.

[0003] During the insertion of the catheter into the vein, the operator may simultaneously advance the guidewire into the patient's vein. If the guidewire is fully inserted into the vein and not removed in time, it will affect the smooth flow of blood in the vein. Moreover, the hard tip of the guidewire may scratch the heart endothelium and venous endothelium, causing endothelial tears and bleeding. In extreme cases, it may puncture the atrium, causing cardiac tamponade, which is extremely dangerous. Summary of the Invention

[0004] The purpose of this invention is to provide a deep vein puncture prevention system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a deep vein puncture prevention system, comprising: a top plate and a bottom plate distributed vertically, two symmetrically distributed docking shafts distributed on the outer sides of the top plate and the bottom plate, the axis of the docking shafts being located on the central plane of the top plate and the bottom plate, two second connecting plates hinged to each docking shaft and the top plate, a first connecting plate hinged to each docking shaft and the bottom plate, a straight groove for guide wire passage opened on one end face of the bottom plate near the top plate, and a pushing component for conveying the guide wire provided between the bottom plate and the top plate, and a connecting component also provided between the top plate and the bottom plate; It also includes: a warning unit for preventing the guidewire from completely entering the vein, the warning unit being disposed inside the top plate; The warning unit includes at least one cavity formed inside the top plate, and a rechargeable battery is fixedly installed inside the cavity. A buzzer is fixedly installed on the top of the cavity. A first electrode plate and a second electrode plate are also distributed inside the cavity. The rechargeable battery, the first electrode plate, the second electrode plate and the buzzer are connected in series. A triggering component is also provided on the outside of the rechargeable battery. When the first electrode plate and the second electrode plate come into contact under the action of the triggering component, the series circuit is connected, and the buzzer will sound an alarm.

[0006] Preferably, the triggering component includes an elliptical cylinder fixed inside the cavity, and a sliding plate is slidably sleeved on the outer surface of the elliptical cylinder. A second spring is distributed on the outer surface of the elliptical cylinder, and the upper and lower ends of the second spring are fixedly disposed with the top plate and the sliding plate. A second electrode plate is fixed on the lower end face of the sliding plate, and a first electrode plate is located directly below the second electrode plate and fixed to the top plate. A retaining plate that slides through the cavity is fixedly disposed on the lower end face of the sliding plate, and the retaining plate is slidably embedded in the straight groove.

[0007] Preferably, the axis of the elliptical cylinder is perpendicular to the axis of the docking shaft, and the sliding plate can slide down the surface of the elliptical cylinder.

[0008] Preferably, the connecting component includes two symmetrically distributed fixed cylinder seats fixed inside the base plate. A first slider is axially slidably mounted inside the fixed cylinder seat, and a support rod that slides through the fixed cylinder seat is fixedly provided on the top of the first slider. The first slider can only move up and down inside the fixed cylinder seat and cannot rotate. The support rod is fixed to the bottom of the top plate. A first tension spring is fixedly provided between the top of the first slider and the fixed cylinder seat, and the first tension spring is distributed outside the support rod. The axis of the support rod is parallel to the axis of the elliptical cylinder. A positioning element is also provided between the fixed cylinder seat and the first slider.

[0009] Preferably, the positioning element includes a limiting sleeve fixed to the outer wall of the fixed cylinder base, and the axis of the limiting sleeve intersects perpendicularly with the axis of the support rod. A second slider is slidably mounted inside the limiting sleeve. A first spring is fixedly disposed between the end of the second slider away from the axis of the support rod and the limiting sleeve. A domed pin that slides through the fixed cylinder base is fixedly disposed at the other end of the second slider. A conical positioning groove is formed on the outer surface of the first slider, and the domed pin is slidably embedded in the conical positioning groove. The elastic stiffness of the first spring is greater than the elastic stiffness of the first tension spring.

[0010] Preferably, the maximum inner diameter of the conical positioning groove is greater than the outer diameter of the dome pin.

[0011] Preferably, the pushing component includes a slot formed at the center of the bottom of the top plate, and a limiting frame is distributed inside the slot. Two symmetrically distributed hanging rods are slidably inserted inside the limiting frame, and the hanging rods are fixed to the top plate. The top of the limiting frame extends out of the top plate. A limiting plate is fixedly provided at the bottom of each hanging rod. A second tension spring is fixedly provided between the upper end face of the limiting plate and the limiting frame, and the second tension spring is distributed outside the hanging rod. Two first gears are rotatably mounted at the bottom of the limiting frame through a first pin, and a silicone wheel is coaxially fixed between the two first gears. A second gear is rotatably mounted at the top of the limiting frame through a second pin, and the second gear meshes with both first gears simultaneously.

[0012] Preferably, the height of the silicone wheel is the same as the width of the straight groove, and the bottom plate has an inner receiving groove for accommodating the limiting frame. The straight groove has an arc bottom, the outer diameter of which is the same as the outer diameter of the silicone wheel. Two symmetrically distributed inclined transition portions are also provided between the arc bottom and the straight groove.

[0013] Preferably, the elastic stiffness of the second tension spring is less than that of the first spring.

[0014] Compared with the prior art, the beneficial effects of the present invention are: In this invention, the connecting component allows the guidewire to be positioned between the top plate and the bottom plate. The pushing component can also push the guidewire. When the guidewire leaves between the top plate and the bottom plate, the triggering component will be activated, and the buzzer will start to sound an alarm, thus informing medical staff that the guidewire is now separated from the top plate and the bottom plate and is not restricted, thereby reminding medical staff to be careful to ensure that the guidewire is completely inserted into the blood vessel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation of the present invention inside a tunnel; Figure 2 This is a schematic diagram showing the opening and closing states of the top and bottom plates of the present invention; Figure 3 This is a schematic diagram of the closed state of the top plate and bottom plate of the present invention; Figure 4 This is a cross-sectional view of the base plate of the present invention; Figure 5 This is a sectional view of the fixed cylinder base of the present invention; Figure 6 This is a schematic diagram of the dome-shaped pin and conical positioning groove structure of the present invention; Figure 7This is a schematic diagram of the internal structure of the cavity in this invention; Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the elliptical cylinder structure of the present invention; Figure 10 This is a schematic diagram of the first and second gear structures of the present invention.

[0016] In the diagram: 1. Top plate; 2. Bottom plate; 3. Connecting shaft; 4. First connecting plate; 5. Second connecting plate; 6. Straight groove; 7. Arc bottom; 8. Sloping transition section; 9. Buzzer; 10. Fixed cylinder seat; 11. Support rod; 12. First slider; 13. First tension spring; 14. Limiting sleeve; 15. Second slider; 16. First spring; 17. Dome pin; 18. Conical positioning groove; 19. Limiting frame; 20. First gear; 21. Silicone wheel; 22. Second gear; 23. Hanging rod; 24. Limiting plate; 25. Second tension spring; 26. Receiving groove; 27. Cavity; 28. Elliptical cylinder; 29. ​​Sliding plate; 30. Second spring; 31. Rechargeable battery; 32. First electrode plate; 33. Second electrode plate; 34. Clamping plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example: Please refer to Figures 1-10 The figure shows a deep vein puncture prevention system, including: a top plate 1 and a bottom plate 2 distributed vertically; two symmetrically distributed docking shafts 3 on the outer sides of the top plate 1 and the bottom plate 2; the axis of the docking shafts 3 is located on the central plane of the top plate 1 and the bottom plate 2; two second connecting plates 5 are hinged to the top plate 1 between each docking shaft 3 and the top plate 1; a first connecting plate 4 is hinged to the bottom plate 2 between each docking shaft 3 and the bottom plate 2; a straight groove 6 for guide wire to pass through is opened on the end face of the bottom plate 2 near the top plate 1; a pushing component for conveying the guide wire is provided between the bottom plate 2 and the top plate 1; and a connecting component is also provided between the top plate 1 and the bottom plate 2. It also includes: a warning unit to prevent the guidewire from entering the vein completely; the warning unit is located inside the top plate 1. The warning unit includes at least one cavity 27 opened inside the top plate 1, and a rechargeable battery 31 is fixedly installed inside the cavity 27. A buzzer 9 is fixedly installed on the top of the cavity 27. A first electrode plate 32 and a second electrode plate 33 are also distributed inside the cavity 27. The rechargeable battery 31, the first electrode plate 32, the second electrode plate 33 and the buzzer 9 are connected in series. A triggering component is also provided on the outside of the rechargeable battery 31. When the first electrode plate 32 and the second electrode plate 33 come into contact under the action of the triggering component, the series circuit is connected, and the buzzer 9 will sound an alarm.

[0019] The triggering component includes an elliptical cylinder 28 fixed inside the cavity 27, and a sliding plate 29 is slidably fitted on the outer surface of the elliptical cylinder 28. Second springs 30 are distributed on the outer surface of the elliptical cylinder 28, and the upper and lower ends of the second springs 30 are fixedly disposed with the top plate 1 and the sliding plate 29. A second electrode plate 33 is fixed to the lower end face of the sliding plate 29. A first electrode plate 32 is located directly below the second electrode plate 33 and is fixed to the top plate 1. A retaining plate 34 that slides through the cavity 27 is fixedly disposed on the lower end face of the sliding plate 29, and the retaining plate 34 is slidably embedded in the straight groove 6. When the retaining plate 34 is fully embedded in the straight groove 6... When the guide wire is not obstructed, the elastic pressure of the second spring 30 on the sliding plate 29 allows the first electrode 32 to contact the second electrode 33, thereby triggering the buzzer 9 to alarm. When the guide wire is between the clamping plate 34 and the straight groove 6, the first electrode 32 cannot contact the second electrode 33, and the alarm will not be triggered. The guide wire diameter used for adult central venous catheterization is 0.89mm, and the rechargeable battery 31 is a common 3V / 9V DC battery. That is, when the gap between the first electrode 32 and the second electrode 33 is 0.89mm, the air will not be broken down between them to form a passage, and there will be no false alarm.

[0020] The axis of the elliptical cylinder 28 is perpendicular to the axis of the docking shaft 3. The sliding plate 29 can slide down the surface of the elliptical cylinder 28, ensuring that the sliding plate 29 can slide up and down with the clamping plate 34.

[0021] The connecting component includes two symmetrically distributed fixed cylindrical seats 10 fixed inside the base plate 2. A first slider 12 is axially slidably mounted inside each fixed cylindrical seat 10, and a support rod 11 that slides through the fixed cylindrical seat 10 is fixedly mounted on the top of the first slider 12. The first slider 12 can only move up and down inside the fixed cylindrical seat 10 and cannot rotate. The support rod 11 is fixed to the bottom of the top plate 1. A first tension spring 13 is fixed between the top of the first slider 12 and the fixed cylindrical seat 10, and the first tension spring 13 is distributed outside the support rod 11. The axis of the support rod 11 is parallel to the axis of the elliptical cylinder 28. A positioning element is also provided between the fixed cylinder 10 and the first slider 12. The elastic tension applied to the first slider 12 and the support rod 11 by the first tension spring 13 can keep the top plate 1 and the bottom plate 2 in an open or closed state. When the top plate 1 and the bottom plate 2 are closed, the first slider 12 moves down to its maximum value inside the fixed cylinder 10. Then, the positioning element can lock the first slider 12 inside the fixed cylinder 10, that is, the positioning element keeps the top plate 1 and the bottom plate 2 in a closed state.

[0022] The positioning component includes a limiting sleeve 14 fixed to the outer wall of the fixed cylinder base 10, and the axis of the limiting sleeve 14 intersects perpendicularly with the axis of the support rod 11. A second slider 15 is slidably assembled inside the limiting sleeve 14. A first spring 16 is fixedly arranged between the end of the second slider 15 away from the axis of the support rod 11 and the limiting sleeve 14. A dome pin 17 that slides through the fixed cylinder base 10 is fixedly arranged at the other end of the second slider 15. A conical positioning groove 18 is opened on the outer surface of the first slider 12, and the dome pin 17 is slidably embedded in the conical positioning groove 18. The elastic stiffness of the first spring 16 is greater than the elastic stiffness of the first tension spring 13. That is, when the dome pin 17 is engaged with the conical positioning groove 18 under the elastic pressure of the first spring 16, the elastic tension applied by the first tension spring 13 to the first slider 12 will not cause the conical positioning groove 18 to separate from the end of the dome pin 17.

[0023] The maximum inner diameter of the conical positioning groove 18 is greater than the outer diameter of the dome pin 17. When medical staff squeeze the two docking shafts 3 at the same time, the separation force between the top plate 1 and the bottom plate 2 can make the dome pin 17 slide out from the inside of the conical positioning groove 18. At this time, the top plate 1 and the bottom plate 2 can change from the closed state to the open state.

[0024] The pushing component includes a slot at the center of the bottom of the top plate 1, and a limiting frame 19 is distributed inside the slot. Two symmetrically distributed lifting rods 23 are slidably inserted inside the limiting frame 19, and the lifting rods 23 are fixed to the top plate 1. The top of the limiting frame 19 extends out of the top plate 1. A limiting plate 24 is fixedly installed at the bottom of each lifting rod 23. A second tension spring 25 is fixedly installed between the upper end face of the limiting plate 24 and the limiting frame 19, and the second tension springs 25 are distributed outside the lifting rods 23. Two first teeth are rotatably assembled at the bottom of the limiting frame 19 through a first pin. A silicone wheel 21 is coaxially fixed between the two first gears 20. The top of the limiting frame 19 is rotatably fitted with a second gear 22 via a second pin. The second gear 22 meshes with both first gears 20. The elastic tension applied to the limiting frame 19 by the second tension spring 25 allows the silicone wheel 21 to squeeze the guide wire into the straight groove 6. When the medical staff pushes the second gear 22 with their fingers, the second gear 22 can rotate the first gear 20. The high friction between the silicone wheel 21 and the guide wire allows the guide wire to be transported.

[0025] The height of the silicone wheel 21 is the same as the width of the straight groove 6, and the bottom plate 2 has an inner receiving groove 26 for accommodating the limiting frame 19. The straight groove 6 has an inner arc bottom 7, the outer diameter of which is the same as the outer diameter of the silicone wheel 21. There are also two symmetrically distributed inclined transition parts 8 between the arc bottom 7 and the straight groove 6. When the silicone wheel 21 and the arc bottom 7 are engaged, the contact area between the guide wire and the surface of the silicone wheel 21 can be increased, making it easier to push the guide wire.

[0026] The elastic stiffness of the second tension spring 25 is less than that of the first spring 16, meaning that the elastic force applied by the second tension spring 25 to the base plate 2 through the silicone wheel 21 will not affect the installation state of the dome pin 17 and the conical positioning groove 18.

[0027] Working principle: When performing tube embedding operation with the guide wire, the guide wire is first placed inside the straight groove 6, and then the top plate 1 and bottom plate 2 are pinched together. The dome pin 17 positions the conical positioning groove 18, which can keep the top plate 1 and bottom plate 2 in a closed state. At this time, the clamping plate 34 will be embedded inside the straight groove 6. Since the guide wire is between the end of the clamping plate 34 and the straight groove 6, the first electrode plate 32 and the second electrode plate 33 will not contact each other. At this time, the buzzer 9 will not be energized. It should be noted that the exposed end of the clamping plate 34 is chamfered or rounded to facilitate the sliding of the guide wire between the clamping plate 34 and the straight groove 6.

[0028] Depending on the direction of guidewire pushing, medical staff can selectively rotate the second gear 22 clockwise or counterclockwise. The friction generated by the silicone wheel 21 squeezing the guidewire allows for selective pushing of the guidewire.

[0029] In this design, when the guidewire falls out between the clamping plate 34 and the straight groove 6, the elastic pressure of the second spring 30 allows the first electrode plate 32 and the second electrode plate 33 to come into contact. At this time, the buzzer 9 will connect to the rechargeable battery 31 and sound an alarm, warning the staff that the guidewire is in a free state and to be careful to avoid the guidewire from completely entering the vein. The buzzer 9 will only stop sounding when the guidewire is clamped between the clamping plate 34 and the straight groove 6 again, thus effectively reminding medical staff to follow the correct procedure for catheter implantation.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A deep vein puncture prevention system, characterized in that, include: A top plate (1) and a bottom plate (2) are arranged vertically. Two symmetrically arranged docking shafts (3) are distributed on the outer side of the top plate (1) and the bottom plate (2). Two second connecting plates (5) are hinged to each docking shaft (3) and the top plate (1). A first connecting plate (4) is hinged to each docking shaft (3) and the bottom plate (2). A straight groove (6) for the guide wire to pass through is opened on one end face of the bottom plate (2) near the top plate (1). A pushing component for conveying the guide wire is provided between the bottom plate (2) and the top plate (1). A connecting component is also provided between the top plate (1) and the bottom plate (2). Also includes: A warning unit is provided to prevent the guidewire from entering the vein completely, and the warning unit is disposed inside the top plate (1); The warning unit includes at least one cavity (27) opened inside the top plate (1), and a rechargeable battery (31) is fixedly installed inside the cavity (27). A buzzer (9) is fixedly installed on the top of the cavity (27). A first electrode plate (32) and a second electrode plate (33) are also distributed inside the cavity (27). The rechargeable battery (31), the first electrode plate (32), the second electrode plate (33) and the buzzer (9) are electrically connected in series. A triggering component is also provided on the outside of the rechargeable battery (31). When the first electrode plate (32) and the second electrode plate (33) come into contact under the action of the triggering component, the series circuit is connected, and the buzzer (9) will sound an alarm.

2. The deep vein puncture prevention system according to claim 1, characterized in that: The triggering component includes an elliptical cylinder (28) fixed inside the cavity (27), and a sliding plate (29) is slidably sleeved on the outer surface of the elliptical cylinder (28). A second spring (30) is distributed on the outer surface of the elliptical cylinder (28), and the upper and lower ends of the second spring (30) are fixedly set with the top plate (1) and the sliding plate (29). The second electrode plate (33) is fixed on the lower end face of the sliding plate (29). The first electrode plate (32) is located directly below the second electrode plate (33), and the first electrode plate (32) is fixed with the top plate (1). A retaining plate (34) that slides through the cavity (27) is fixedly set on the lower end face of the sliding plate (29), and the retaining plate (34) is slidably embedded in the straight groove (6).

3. The deep vein puncture prevention system according to claim 2, characterized in that: The axis of the elliptical cylinder (28) is perpendicular to the axis of the docking shaft (3), and the sliding plate (29) can slide down the surface of the elliptical cylinder (28).

4. The deep vein puncture prevention system according to claim 2, characterized in that: The connecting component includes two symmetrically distributed fixed cylinder seats (10) fixed inside the base plate (2). A first slider (12) is axially slidably mounted inside the fixed cylinder seat (10), and a support rod (11) that slides through the fixed cylinder seat (10) is fixedly provided on the top of the first slider (12). The support rod (11) is fixed to the bottom of the top plate (1). A first tension spring (13) is fixedly provided between the top of the first slider (12) and the fixed cylinder seat (10). A positioning component is also provided between the fixed cylinder seat (10) and the first slider (12).

5. A deep vein puncture prevention system according to claim 4, characterized in that: The positioning component includes a limiting sleeve (14) fixed to the outer wall of the fixed cylinder seat (10), and the axis of the limiting sleeve (14) intersects perpendicularly with the axis of the support rod (11). A second slider (15) is slidably assembled inside the limiting sleeve (14). A first spring (16) is fixedly arranged between one end of the second slider (15) away from the axis of the support rod (11) and the limiting sleeve (14). A dome pin (17) that slides through the fixed cylinder seat (10) is fixedly arranged at the other end of the second slider (15). A conical positioning groove (18) is opened on the outer surface of the first slider (12), and the dome top end of the dome pin (17) is slidably embedded in the conical positioning groove (18). The elastic stiffness of the first spring (16) is greater than the elastic stiffness of the first tension spring (13).

6. A deep vein puncture prevention system according to claim 5, characterized in that: The maximum inner diameter of the conical positioning groove (18) is greater than the outer diameter of the dome pin (17).

7. A deep vein puncture prevention system according to claim 5, characterized in that: The pushing component includes a slot at the center of the bottom of the top plate (1), and a limiting frame (19) is distributed inside the slot. Two symmetrically distributed hanging rods (23) are slidably inserted inside the limiting frame (19), and the hanging rods (23) are fixed to the top plate (1). The top of the limiting frame (19) extends out of the top plate (1). A limiting plate (24) is fixedly provided at the bottom of each hanging rod (23). A second tension spring (25) is fixedly provided between the upper end face of the limiting plate (24) and the limiting frame (19). Two first gears (20) are rotatably assembled at the bottom of the limiting frame (19) through a first pin, and a silicone wheel (21) is coaxially fixed between the two first gears (20). A second gear (22) is rotatably assembled at the top of the limiting frame (19) through a second pin, and the second gear (22) meshes with the first gear (20).

8. A deep vein puncture prevention system according to claim 7, characterized in that: The height of the silicone wheel (21) is the same as the width of the straight groove (6), and the bottom plate (2) has an inner cavity for accommodating the limiting frame (19). The straight groove (6) has an inner cavity for an arc bottom (7). The outer diameter of the arc bottom (7) is the same as the outer diameter of the silicone wheel (21). There are also two symmetrically distributed inclined transition parts (8) between the arc bottom (7) and the straight groove (6).

9. A deep vein puncture prevention system according to claim 7, characterized in that: The elastic stiffness of the second tension spring (25) is less than that of the first spring (16).

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