Temporary blood vessel bypass device for battlefield first aid

Abstract

The invention relates to the technical field of blood vessel bypass, and discloses a temporary blood vessel bypass device for battlefield first aid, comprising: a bypass tube for performing blood vessel bypass; the balloon is arranged on the bypass tube and is used for sealing a gap between the bypass tube and a blood vessel; the necking assembly is arranged on the balloon and is used for reducing the diameter of the end part of the balloon and the diameter of the end part of the bypass tube; the necking assembly comprises extrusion rods which are fixedly installed on the balloon at equal intervals in a surrounding mode. When the bypass tube needs to be pulled out, necking operation on the bypass tube and the balloon can be achieved, so that the contact area between the balloon and the bypass tube and a blood vessel can be reduced, abrasion to the inner wall of the blood vessel can be reduced when the balloon and the bypass tube are pulled out, the blood vessel can be protected, and the extrusion rod can be limited; therefore, it can be guaranteed that the extrusion rod maintains the necking state of the balloon and the bypass pipe, and the whole pulling-out process can be conducted more stably.

Description

Technical Field

[0001] This invention belongs to the field of vascular diversion technology, and specifically relates to a temporary vascular diversion device for battlefield emergency treatment. Background Technology

[0002] In the modern battlefield environment, soldiers face complex and diverse trauma risks, among which vascular injury is one of the most common and dangerous injuries. If effective first aid is not provided in time after a blood vessel ruptures, it may lead to serious consequences such as massive bleeding, tissue ischemia and necrosis, and even endanger life. Therefore, vascular bypass technology is a key first aid method in battlefield first aid.

[0003] However, when existing bypass catheters are removed, the contact area between the bypass catheter and balloon and the blood vessel is large, which causes greater wear and tear on the inner wall of the blood vessel and can easily damage the blood vessel.

[0004] Therefore, it is necessary to invent a temporary vascular bypass device for battlefield first aid to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, the present invention provides a temporary vascular transfer device for battlefield emergency treatment, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a temporary vascular transfer device for battlefield first aid, comprising: A bypass catheter is used for vascular bypass. A balloon, mounted on the bypass tube, is used to seal the gap between the bypass tube and the blood vessel; A constriction assembly, disposed on the balloon, is used to reduce the diameter of the ends of the balloon and the diversion tube; The narrowing component includes: Extrusion rods are equidistantly and fixedly installed around the balloon, and are used to extrude the balloon and the end of the diversion tube; A pushing component, disposed outside the extrusion rod, is used to push the extrusion rod toward the direction of the transfer tube.

[0007] Furthermore, the actuating component includes: A ring frame is fitted over the outside of the circulator tube; A cavity is provided on the ring frame, and the number and position of the cavities correspond to the extrusion rod; A sliding plate is slidably installed inside the cavity, with one end of the sliding plate extending to the outside of the cavity and fixedly connected to the extrusion rod; A ring plate is rotatably mounted on the bottom of the ring frame; The extrusion members are equidistantly arranged around the inner side of the ring plate and are used to extrude the extrusion rod.

[0008] Furthermore, the extrusion member includes: Extruded blocks are equidistantly arranged around the inner side of the ring plate; An inclined surface is provided on one side of the extruded block; The arc surface is located on the side of the extrusion block closest to the transfer tube.

[0009] Furthermore, the inclined surface can abut against the extrusion rod, and the curvature of the arc surface is consistent with the curvature of the inner wall of the ring plate.

[0010] Furthermore, the extrusion block is provided with a limiting component, which can restrict the position of the extrusion rod so that it does not detach from the arc surface.

[0011] Furthermore, the limiting component includes: The first baffle is rotatably mounted on the arc surface; A support component is disposed on the first baffle and can support the first baffle so that it is in an inclined state; The second baffle is disposed on the arc surface and can cooperate with the first baffle to restrict the position of the extrusion rod.

[0012] Furthermore, the support component includes: A shaft is symmetrically fixedly installed on both sides of the first baffle, and a rotating groove is provided on the arc surface. One end of the shaft is rotatably installed in the rotating groove. A torsion spring is sleeved on the outside of the shaft, and the two ends of the torsion spring are fixedly connected to the inner wall of the rotating groove and the shaft, respectively.

[0013] Furthermore, the distance between the first baffle and the second baffle is sufficient to accommodate the extrusion rod.

[0014] The technical effects and advantages of this invention are as follows: 1. When it is necessary to remove the bypass tube, the present invention can perform a constriction operation on the bypass tube and balloon, thereby reducing the contact area between the balloon and bypass tube and the blood vessel, reducing wear on the inner wall of the blood vessel when pulling out the balloon and bypass tube, and protecting the blood vessel. 2. This invention can limit the position of the extrusion rod, thereby ensuring that the extrusion rod maintains the constricted state of the balloon and the diversion tube, making the entire extraction process more stable. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a temporary vascular transfer device for battlefield first aid according to an embodiment of the present invention is shown; Figure 2A schematic diagram of a portion of the structure of an embodiment of the present invention is shown. Figure 1 ; Figure 3 A schematic diagram of a portion of the structure of an embodiment of the present invention is shown. Figure 2 ; Figure 4 A cross-sectional structural schematic diagram of a portion of an embodiment of the present invention is shown; Figure 5 An embodiment of the present invention is shown. Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 A schematic diagram of the structure of the first baffle and support assembly according to an embodiment of the present invention is shown; Figure 7 A physical diagram of an embodiment of the present invention is shown; In the diagram: 1. Circulator tube; 2. Balloon; 3. Extrusion rod; 4. Ring frame; 5. Cavity; 6. Slide plate; 7. Ring plate; 8. Extrusion block; 9. Inclined surface; 10. Arc surface; 11. First baffle; 12. Second baffle; 13. Shaft; 14. Torsion spring; 15. Indicator line. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0017] This invention provides a temporary vascular bypass device for battlefield first aid, such as... Figures 1 to 6 As shown, it includes: a diversion tube 1, a balloon 2, and a constriction assembly; The bypass tube 1 is used for vascular bypass. The bypass tube 1 is a medical bypass tube in the prior art. The balloon 2 is set on the bypass tube 1 and is used to seal the gap between the bypass tube 1 and the blood vessel. The balloon 2 is a balloon on the medical bypass tube in the prior art. The constriction assembly is set on the balloon 2 and is used to reduce the diameter of the ends of the balloon 2 and the bypass tube 1. The necking assembly includes: extruder 3 and push assembly; The extrusion rods 3 are equidistantly and fixedly installed around the balloon 2 to squeeze the ends of the balloon 2 and the diversion tube 1. The extrusion rods 3 are inserted into the balloon 2 and fixedly connected to the balloon 2. The pushing component is set outside the extrusion rods 3 to push the extrusion rods 3 to move closer to the diversion tube 1.

[0018] In use, the bypass tube 1 and balloon 2 are inserted into the blood vessel to be bypassed, causing balloon 2 to inflate. The inflation principle of balloon 2 is the same as that of balloon inflation on existing medical bypass tubes. The inflation of balloon 2 seals the gap between the bypass tube 1 and the blood vessel. Then, the bypass tube 1 is used. When it is necessary to remove the bypass tube 1, balloon 2 is reset and deflated. Then, the push assembly pushes the squeeze rod 3 towards the bypass tube 1, which pulls balloon 2 and squeezes the end of bypass tube 1. This causes the ends of balloon 2 and bypass tube 1 to wrinkle, reducing the contact area between balloon 2 and bypass tube 1 and the blood vessel. When the balloon 2 and bypass tube 1 are pulled out, wear on the inner wall of the blood vessel is reduced, protecting the blood vessel.

[0019] like Figures 2 to 5 As shown, the pushing assembly includes: ring frame 4, cavity 5, slide plate 6, ring plate 7, and extrusion component; The ring frame 4 is fitted outside the transfer tube 1. The cavity 5 is set on the ring frame 4. The number and position of the cavities 5 correspond to the extrusion rod 3. The slide plate 6 is slidably installed inside the cavity 5. One end of the slide plate 6 extends to the outside of the cavity 5 and is fixedly connected to the extrusion rod 3. The ring plate 7 is rotatably installed at the bottom of the ring frame 4. The extrusion parts are equidistantly arranged around the inner side of the ring plate 7 for extruding the extrusion rod 3.

[0020] Use tweezers to clamp the ring frame 4 to fix it, and rotate the ring plate 7 to make it squeeze the extrusion rod 3 with the extrusion component, so that the extrusion rod 3 moves towards the direction of the transfer tube 1, thereby pushing the extrusion rod 3.

[0021] like Figures 3 to 5 As shown, the extrusion component includes: extrusion block 8, inclined surface 9, and arc surface 10; The extrusion blocks 8 are equidistantly and fixedly installed on the inner side of the ring plate 7. The number of extrusion blocks 8 corresponds to the number of extrusion rods 3. The inclined surface 9 is set on one side of the extrusion block 8, and the arc surface 10 is set on the side of the extrusion block 8 near the diversion tube 1. The inclined surface 9 can abut against the extrusion rod 3. The arc of the arc surface 10 is consistent with the arc of the inner wall of the ring plate 7. The ring plate 7 and the ring frame 4 are provided with corresponding indicator lines 15. When the two indicator lines 15 coincide, it indicates that the ring plate 7 has been rotated into place. At this time, the narrowing of the balloon 2 and the diversion tube 1 is completed.

[0022] The rotating ring plate 7 causes the extrusion block 8 to move along with it. The extrusion block 8, together with the inclined surface 9, squeezes the extrusion rod 3. When the extrusion rod 3 comes into contact with the arc surface 10, the pushing of the extrusion rod 3 is completed.

[0023] like Figures 3 to 6 As shown, the extrusion block 8 is provided with a limiting component, which can limit the position of the extrusion rod 3 so that it does not detach from the arc surface 10.

[0024] The limiting component can limit the extrusion rod 3 when the diverter tube 1 is pulled out, preventing the extrusion rod 3 from detaching from the arc surface 10, thereby preventing the extrusion rod 3 from detaching from the extrusion block 8, and ensuring the maintenance of the constricted state of the balloon 2 and the diverter tube 1.

[0025] like Figure 5 and Figure 6 As shown, the limiting components include: a first baffle 11, a support component, and a second baffle 12; The first baffle 11 is rotatably mounted on the arc surface 10. The support assembly is set on the first baffle 11 and can support the first baffle 11 so that it is in an inclined state. The second baffle 12 is fixed on the arc surface 10 and can cooperate with the first baffle 11 to restrict the position of the extrusion rod 3. The support components include: shaft 13 and torsion spring 14; The shaft 13 is symmetrically fixed on both sides of the first baffle 11. A rotating groove is provided on the arc surface 10. One end of the shaft 13 is rotatably installed in the rotating groove. The torsion spring 14 is sleeved on the outside of the shaft 13. The two ends of the torsion spring 14 are fixedly connected to the inner wall of the rotating groove and the shaft 13, respectively.

[0026] The torsion spring 14 supports the shaft 13 and the first baffle 11, keeping them in an inclined state. As the extrusion block 8 moves, the extrusion rod 3 comes into contact with the first baffle 11, squeezing the first baffle 11 and causing the shaft 13 to rotate. The torsion spring 14 twists and deforms the first baffle 11, allowing it to enter the rotating groove and avoid the extrusion rod 3. When the extrusion rod 3 moves between the first baffle 11 and the second baffle 12, it leaves the first baffle 11. The torsion spring 14 resets the shaft 13 and the first baffle 11. The restriction of the extrusion rod 3 by the first baffle 11 and the second baffle 12 prevents the extrusion rod 3 from detaching from the arc surface 10 and the extrusion block 8.

[0027] like Figure 5 As shown, the distance between the first baffle 11 and the second baffle 12 is sufficient to accommodate the extrusion rod 3.

[0028] This ensures that the first baffle 11 and the second baffle 12 limit the movement of the extrusion rod 3.

[0029] Working principle: During use, the bypass tube 1 and balloon 2 are inserted into the blood vessel to be bypassed, causing balloon 2 to inflate. The inflation principle of balloon 2 is the same as that of balloon inflation on existing medical bypass tubes. The inflation of balloon 2 seals the gap between bypass tube 1 and the blood vessel. Then, bypass tube 1 is used. When it is necessary to remove bypass tube 1, balloon 2 is reset to deflate. The ring frame 4 is clamped and fixed with forceps. The ring plate 7 is rotated so that the squeezing block 8 moves with it. The squeezing block 8, together with the inclined surface 9, squeezes the squeezing rod 3. When the squeezing rod 3 comes into contact with the arc surface 10, the squeezing rod 3 is pushed. The squeezing rod 3 moves towards bypass tube 1, which pulls balloon 2 and squeezes the end of bypass tube 1. This causes the ends of balloon 2 and bypass tube 1 to wrinkle, reducing the contact area between balloon 2 and bypass tube 1 and the blood vessel. When balloon 2 and bypass tube 1 are pulled out, wear on the inner wall of the blood vessel is reduced, protecting the blood vessel. The torsion spring 14 supports the shaft 13 and the first baffle 11, keeping them in an inclined state. As the extrusion block 8 moves, the extrusion rod 3 comes into contact with the first baffle 11, squeezing the first baffle 11 and causing the shaft 13 to rotate. The torsion spring 14 twists and deforms the first baffle 11, allowing it to enter the rotating groove and avoid the extrusion rod 3. When the extrusion rod 3 moves between the first baffle 11 and the second baffle 12, it leaves the first baffle 11. The torsion spring 14 resets the shaft 13 and the first baffle 11. The restriction of the extrusion rod 3 by the first baffle 11 and the second baffle 12 prevents the extrusion rod 3 from detaching from the arc surface 10 and the extrusion block 8, ensuring the maintenance of the constricted state of the balloon 2 and the diversion tube 1.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A temporary vascular bypass device for battlefield first aid, characterized in that, include: The bypass tube (1) is used for vascular bypass. A balloon (2) is placed on the bypass tube (1) to seal the gap between the bypass tube (1) and the blood vessel; A narrowing assembly is provided on the balloon (2) for reducing the diameter of the ends of the balloon (2) and the diversion tube (1); The narrowing component includes: The extrusion rod (3) is fixedly installed around the balloon (2) at equal intervals, and is used to extrude the balloon (2) and the end of the diversion tube (1); A pushing component is disposed outside the extrusion rod (3) for pushing the extrusion rod (3) to move toward the direction of the transfer tube (1).

2. The temporary vascular transfer device for battlefield first aid according to claim 1, characterized in that: The actuating component includes: The ring frame (4) is sleeved on the outside of the duct (1); Cavities (5) are provided on the ring frame (4), and the number and position of the cavities (5) correspond to the extrusion rods (3); The slide plate (6) is slidably installed inside the cavity (5), and one end of the slide plate (6) extends to the outside of the cavity (5) and is fixedly connected to the extrusion rod (3); The ring plate (7) is rotatably mounted on the bottom of the ring frame (4); The extrusion members are equidistantly arranged around the inner side of the ring plate (7) for extruding the extrusion rod (3).

3. The temporary vascular transfer device for battlefield first aid according to claim 2, characterized in that: The extrusion component includes: Extrusion blocks (8) are equidistantly arranged around the inner side of the ring plate (7); An inclined surface (9) is provided on one side of the extrusion block (8); The arc surface (10) is located on the side of the extrusion block (8) near the transfer tube (1).

4. The temporary vascular transfer device for battlefield first aid according to claim 3, characterized in that: The inclined surface (9) can abut against the extrusion rod (3), and the curvature of the arc surface (10) is consistent with the curvature of the inner wall of the ring plate (7).

5. The temporary vascular transfer device for battlefield first aid according to claim 4, characterized in that: The extrusion block (8) is provided with a limiting component, which can limit the position of the extrusion rod (3) so that it does not detach from the arc surface (10).

6. The temporary vascular transfer device for battlefield first aid according to claim 5, characterized in that: The limiting components include: The first baffle (11) is rotatably mounted on the arc surface (10); A support component is provided on the first baffle (11) and can support the first baffle (11) so that it is tilted. The second baffle (12) is disposed on the arc surface (10) and can cooperate with the first baffle (11) to restrict the position of the extrusion rod (3).

7. The temporary vascular transfer device for battlefield first aid according to claim 6, characterized in that: The support components include: A shaft (13) is symmetrically fixed on both sides of the first baffle (11). A rotating groove is provided on the arc surface (10), and one end of the shaft (13) is rotatably installed in the rotating groove. A torsion spring (14) is sleeved on the outside of the shaft (13), and the two ends of the torsion spring (14) are fixedly connected to the inner wall of the rotating groove and the shaft (13) respectively.

8. The temporary vascular transfer device for battlefield first aid according to claim 7, characterized in that: The distance between the first baffle (11) and the second baffle (12) is sufficient to accommodate the extrusion rod (3).

Images