Novel coronary sinus balloon sheath tube

Abstract

The utility model discloses a novel coronary sinus balloon sheathing canal, which belongs to the technical field of medical instruments and comprises a main sheathing canal body, the lower end of the main sheathing canal body is communicated with an elastic hose, one end of the elastic hose far away from the main sheathing canal body is communicated with a sheathing canal head, and the outer side wall of the sheathing canal head is provided with a balloon mechanism. A hemostasis valve is arranged at the upper end of the main sheath tube body, a contrast agent injection valve tube is arranged on the side, close to the hemostasis valve, of the main sheath tube body in a communicated mode, a bending adjusting mechanism is arranged on the main sheath tube body, and one end of the bending adjusting mechanism is fixedly connected with the inner wall of the sheath tube head. According to the coronary sinus balloon sheath tube, by arranging the bending adjusting mechanism, the elastic hose and the sheath tube head, the bending direction of the sheath tube head can be adjusted, the coronary sinus balloon sheath tube can be conveniently and accurately inserted, the proximal end of the coronary sinus can be blocked by arranging the balloon mechanism, the risks of vein tearing and vascular dissection can be obviously reduced, and operation steps are simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a novel coronary sinus balloon sheath. Background Art

[0002] In medical work, when placing a three-chamber pacemaker, before implanting the left ventricular pacing electrode, it is usually necessary to first use coronary sinus angiography to clarify the course of the blood vessels that flow into the coronary sinus vein, and then accurately send the pacing electrode into the coronary meridian branch to pace the ventricle. The pacemaker electrode lead must reach the ideal coronary vein to achieve a better therapeutic effect, which first requires the pacemaker electrode lead to reach the designated distal end of the vein.

[0003] The CS sheath currently used in CRT surgery does not have a balloon structure. During retrograde angiography, a special "balloon catheter" must be inserted through the CS sheath to block the proximal end of the coronary sinus, and then contrast agent is injected through the balloon catheter to display the coronary sinus and its vascular branches. However, if the balloon catheter accidentally enters a smaller venous branch, the insertion of the balloon catheter and inflation will cause venous tearing; the balloon tip is sharp, and excessive force or deep extension can easily pierce the vein or cause vascular dissection, which is a difficult and high-risk operation. Secondly, the existing sheath tip is difficult to bend, making it difficult to accurately insert the coronary sinus balloon sheath. Utility Model Content

[0004] The utility model aims to provide a novel coronary sinus balloon sheath to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel coronary sinus balloon sheath, comprising a main sheath body, the lower end of the main sheath body is connected with an elastic hose, the end of the elastic hose away from the main sheath body is connected with a sheath head, the outer wall of the sheath head is provided with a balloon mechanism, the upper end of the main sheath body is provided with a hemostatic valve, the side of the main sheath body close to the hemostatic valve is connected with a contrast agent injection valve tube, the main sheath body is provided with a bending mechanism, and one end of the bending mechanism is fixedly connected to the inner wall of the sheath head;

[0006] The bending adjustment mechanism includes a round shell connected to a side of the main sheath tube body close to the hemostatic valve, a pull rod is inserted and slidably connected to one end of the round shell, one end of the pull rod extends into the round shell and is fixedly connected to a sliding plate, the inner wall of the round shell is slidably connected to the outer wall of the sliding plate, a reset spring is fixedly connected between the sliding plate and the inner wall of the round shell, the reset spring is sleeved on the pull rod, a traction wire is fixedly connected to one side of the sliding plate, and the traction wire extends into the main sheath tube body at one end away from the sliding plate and is fixedly connected to the inner wall of the sheath tube head.

[0007] As a further solution of the utility model: wherein, the balloon mechanism includes a balloon body fixedly mounted on the sheath head, one side of the balloon body is connected to an inflation tube, and an inflation bag valve is provided at one end of the inflation tube away from the balloon body.

[0008] As a further solution of the utility model: wherein, the side wall of the inflation tube is fixedly connected to the side wall of the main sheath tube body.

[0009] As a further solution of the utility model: wherein, a through hole is opened at one end of the round shell, the pull rod is arranged through the through hole, a sealing ring is fixedly connected to the inner wall of the through hole, and the inner wall of the sealing ring is frictionally connected to the outer wall of the pull rod.

[0010] As a further solution of the utility model: wherein, one end of the pull rod located outside the round shell is fixedly connected with a pull ring.

[0011] As a further solution of the present invention: wherein, the outer side wall of the main sheath tube body is provided with scale lines.

[0012] As a further solution of the utility model: wherein, one end of the sheath tube head away from the elastic hose is fixedly connected with a spherical guide head, and the side wall of the spherical guide head is provided with a guide hole connected with the sheath tube head.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. This novel coronary sinus balloon sheath has a bending adjustment mechanism, an elastic hose and a sheath head. It only requires pulling the pull ring to drive the slide fixed to the pull rod to slide in the round shell. At this time, the reset spring is squeezed to generate elastic force. At the same time, the traction wire is pulled to move, thereby pulling the sheath head to swing on the elastic hose to achieve adjustment of the bending direction. The adjustment is convenient and the coronary sinus balloon sheath is accurately inserted. When the pull ring is released, the elastic force of the reset spring is used to reset the sheath head.

[0015] 2. This novel coronary sinus balloon sheath has a balloon mechanism. When performing retrograde angiography, there is no need to insert an additional angiography catheter. The inflatable bag valve is directly squeezed and the balloon body is inflated through the inflation tube to block the proximal end of the coronary sinus. Contrast agent is then injected through the contrast agent injection valve tube through the main sheath body to display the coronary sinus and its vascular branches. This device can significantly reduce the risk of venous tearing and vascular dissection and simplify the operating steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 For the utility model Figure 2 A is an enlarged structural diagram of FIG.

[0019] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0020] 1. Main sheath body; 2. Elastic hose; 3. Sheath head; 4. Hemostatic valve; 5. Contrast agent injection valve tube; 6. Round shell; 7. Pull rod; 8. Slide; 9. Reset spring; 10. Traction wire; 11. Balloon body; 12. Inflation tube; 13. Inflation bag valve; 14. Through hole; 15. Sealing ring; 16. Pull ring; 17. Scale line; 18. Spherical guide head; 19. Guide hole. DETAILED DESCRIPTION

[0021] See also Figures 1 to 3 In the practical embodiment, a novel coronary sinus balloon sheath comprises a main sheath body 1, the lower end of the main sheath body 1 is connected with an elastic hose 2, the end of the elastic hose 2 away from the main sheath body 1 is connected with a sheath head 3, so that the sheath head 3 can be bent, a balloon mechanism is provided on the outer wall of the sheath head 3, the upper end of the main sheath body 1 is provided with a hemostatic valve 4, the side of the main sheath body 1 close to the hemostatic valve 4 is connected with a contrast agent injection valve tube 5, the main sheath body 1 is provided with a bending mechanism, and one end of the bending mechanism is fixedly connected to the inner wall of the sheath head 3;

[0022] The bending adjustment mechanism includes a round shell 6 connected to one side of the main sheath tube body 1 near the hemostatic valve 4, a pull rod 7 is inserted and slidably connected to one end of the round shell 6, one end of the pull rod 7 extends into the round shell 6 and is fixedly connected to a slide 8, the inner wall of the round shell 6 is slidably connected to the outer wall of the slide 8, a reset spring 9 is fixedly connected between the slide 8 and the inner wall of the round shell 6, the reset spring 9 is sleeved on the pull rod 7, a traction wire 10 is fixedly connected to one side of the slide 8, and the traction wire 10 extends to the main sheath tube body 1 at one end away from the slide 8 and is connected to the sheath tube The inner wall of the head 3 is fixedly connected. When intubation needs to be performed and the bending direction of the sheath head 3 needs to be adjusted, it is only necessary to pull the pull ring 16 to drive the slide 8 fixed to the pull rod 7 to slide in the round shell 6. At this time, the reset spring 9 is squeezed to generate elastic force. At the same time, the traction wire 10 is pulled to move, thereby pulling the sheath head 3 to swing on the elastic hose 2 to achieve the adjustment of the bending direction. The adjustment is convenient and it is easy to accurately insert the coronary sinus balloon sheath. When the pull ring 16 is released, the elastic force of the reset spring 9 is used to reset the sheath head 3.

[0023] like Figure 1 and Figure 2As shown: the balloon mechanism includes a balloon body 11 fixedly mounted on the sheath head 3, one side of the balloon body 11 is connected to an inflation tube 12, and an inflation bag valve 13 is provided at one end of the inflation tube 12 away from the balloon body 11. When performing retrograde angiography, there is no need to insert an additional angiography catheter, and the inflation bag valve 13 is directly squeezed to inflate the balloon body 11 through the inflation tube 12 to block the proximal end of the coronary sinus, and then the contrast agent is injected through the contrast agent injection valve tube 5 through the main sheath body 1, so that the coronary sinus and its vascular branches can be displayed. The device can significantly reduce the risk of venous tearing and vascular dissection and simplify the operation steps.

[0024] like Figure 2 As shown: the side wall of the inflation tube 12 is fixedly connected to the side wall of the main sheath tube body 1 to prevent the inflation tube 12 from shaking.

[0025] like Figure 3 As shown: a through hole 14 is opened at one end of the round shell 6, and the pull rod 7 is arranged through the through hole 14. A sealing ring 15 is fixedly connected to the inner wall of the through hole 14. The inner wall of the sealing ring 15 is frictionally connected to the outer wall of the pull rod 7, which does not affect the displacement of the pull rod 7 and prevents liquid leakage.

[0026] like Figure 3 As shown: one end of the pull rod 7 located outside the round shell 6 is fixedly connected with a pull ring 16 to facilitate pulling the pull rod 7.

[0027] like Figure 1 As shown: the outer wall of the main sheath body 1 is provided with scale lines 17 to facilitate observation of the insertion depth.

[0028] like Figure 1 As shown: one end of the sheath tube head 3 away from the elastic hose 2 is fixedly connected with a spherical guide head 18, and a guide hole 19 connected to the sheath tube head 3 is opened on the side wall of the spherical guide head 18, which is convenient for insertion and reduces friction.

[0029] Working principle: When using the device for retrograde angiography, there is no need to insert an additional angiography catheter. The inflatable bag valve 13 is directly squeezed, and the balloon body 11 is inflated through the inflation tube 12 to block the proximal end of the coronary sinus. Then, the contrast agent is injected through the main sheath tube body 1 through the contrast agent injection valve tube 5 to display the coronary sinus and its vascular branches. The device can significantly reduce the risk of venous tearing and vascular dissection and simplify the operation steps.

[0030] When intubation needs to be performed and the bending direction of the sheath head 3 needs to be adjusted, it is only necessary to pull the pull ring 16 to drive the slide 8 fixed to the pull rod 7 to slide in the round shell 6. At this time, the reset spring 9 is squeezed to generate elastic force. At the same time, the traction wire 10 is pulled to move, thereby pulling the sheath head 3 to swing on the elastic hose 2 to achieve the adjustment of the bending direction. The adjustment is convenient and accurate insertion of the coronary sinus balloon sheath is facilitated. When the pull ring 16 is released, the elastic force of the reset spring 9 is used to reset the sheath head 3.

[0031] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel coronary sinus balloon sheath, comprising a main sheath body (1), characterized in that: The lower end of the main sheath tube body (1) is connected to an elastic hose (2), the end of the elastic hose (2) away from the main sheath tube body (1) is connected to a sheath tube head (3), the outer wall of the sheath tube head (3) is provided with a balloon mechanism, the upper end of the main sheath tube body (1) is provided with a hemostatic valve (4), the side of the main sheath tube body (1) close to the hemostatic valve (4) is connected to a contrast agent injection valve tube (5), and the main sheath tube body (1) is provided with a bending adjustment mechanism, one end of which is fixedly connected to the inner wall of the sheath tube head (3); The bending adjustment mechanism comprises a round shell (6) connected to one side of the main sheath tube body (1) near the hemostatic valve (4); a pull rod (7) is inserted and slidably connected to one end of the round shell (6); one end of the pull rod (7) extends into the round shell (6) and is fixedly connected to a slide (8); the inner wall of the round shell (6) is slidably connected to the outer wall of the slide (8); a reset spring (9) is fixedly connected between the slide (8) and the inner wall of the round shell (6); the reset spring (9) is sleeved on the pull rod (7); one side of the slide (8) is fixedly connected to a traction wire (10); the traction wire (10) extends from one end of the slide (8) into the main sheath tube body (1) and is fixedly connected to the inner wall of the sheath tube head (3).

2. A novel coronary sinus balloon sheath according to claim 1, characterized in that: The balloon mechanism comprises a balloon body (11) fixedly sleeved on a sheath tube head (3); one side of the balloon body (11) is connected to an inflation tube (12); and an inflation tube valve (13) is provided at one end of the inflation tube (12) away from the balloon body (11).

3. A novel coronary sinus balloon sheath according to claim 2, characterized in that: The side wall of the inflation tube (12) is fixedly connected to the side wall of the main sheath tube body (1).

4. The novel coronary sinus balloon sheath according to claim 1, characterized in that: A through hole (14) is provided at one end of the circular shell (6), and the pull rod (7) is arranged through the through hole (14). A sealing ring (15) is fixedly connected to the inner wall of the through hole (14), and the inner wall of the sealing ring (15) is frictionally connected to the outer wall of the pull rod (7).

5. The novel coronary sinus balloon sheath according to claim 1, characterized in that: One end of the pull rod (7) located outside the round shell (6) is fixedly connected to a pull ring (16).

6. The novel coronary sinus balloon sheath according to claim 1, characterized in that: The outer side wall of the main sheath tube body (1) is provided with scale lines (17).

7. The novel coronary sinus balloon sheath according to claim 1, characterized in that: One end of the sheath tube head (3) away from the elastic hose (2) is fixedly connected to a spherical guide head (18), and a guide hole (19) connected to the sheath tube head (3) is provided on the side wall of the spherical guide head (18).

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