Kidney blood flow protection sheath tube device used after cardiovascular intervention operation

Abstract

The utility model relates to the technical field of medical instruments, in particular to a cardiovascular intervention postoperative kidney blood flow protection sheathing canal device which comprises an inner sheathing canal and an outer sheathing canal, the inner sheathing canal is arranged in the outer sheathing canal in a sliding mode, the two ends of the inner sheathing canal both extend to the outside of the outer sheathing canal, and a conical protection umbrella is fixedly installed at one end of the inner sheathing canal. The protective umbrella comprises elastic rods and a protective net bag, the multiple elastic rods are evenly and fixedly arranged on the protective net bag, one end of each elastic rod is fixedly connected with the end of the inner sheath tube, a through hole is formed in the side, away from the protective umbrella, of the tube wall of the outer sheath tube, an adjusting mechanism is arranged between the through hole and the inner sheath tube, and the adjusting mechanism comprises a locking rod. According to the utility model, the outer sheath tube can be adjusted to limit the angles of the plurality of elastic rods, so that the closing size of the protective umbrella can be adjusted, the universality is improved, the protective umbrella is completely closed after debris collection is completed, and the bent part can prevent debris from being separated when the elastic rods are bent into a horizontal state, so that the reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a kind of renal blood flow protection sheath tube device after cardiovascular intervention. BACKGROUND

[0002] Vascular endoluminal intervention surgery is a common treatment for vascular diseases, and surgical operation in the lumen is prone to thrombus debris, which is easily transported to embolize renal artery, lower extremity distal and other small arteries via abdominal aorta. The product and patent about the protection umbrella in sheath tube for taking thrombus surgery to isolate debris are not common in the market.

[0003] In the patent with announcement number CN219594734U, a protection umbrella opening structure in sheath tube is disclosed, which comprises a sheath tube, a plurality of circumferentially arranged guide rods are arranged on the inner wall of the sheath tube, one end of the guide rod is connected with the protection umbrella, and the other end of the guide rod is a push block exposed from the sheath tube. The push block drives the guide rod to expose or retract the protection umbrella from one end of the sheath tube.

[0004] The above-mentioned patent has the following problems:

[0005] It is inconvenient to adjust the size of the protection umbrella opening according to the size of the blood vessel and the need of the operation, and after the protection umbrella is closed, the debris can fall from the opening of the protection umbrella, and the reliability is insufficient, so we propose a renal blood flow protection sheath tube device after cardiovascular intervention. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a renal blood flow protection sheath tube device after cardiovascular intervention, which can adjust the angle limit of the outer sheath tube to the plurality of elastic rods, thereby realizing the adjustment of the closing size of the protection umbrella, improving the universality, completely closing the protection umbrella after the debris collection is completed, preventing the debris from falling off when the elastic rod is bent to the horizontal state, and improving the reliability to solve the problems in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A renal blood flow protection sheath tube device after cardiovascular intervention, comprising an inner sheath tube and an outer sheath tube, the inner sheath tube is slidably arranged inside the outer sheath tube, and both ends of the inner sheath tube extend to the outside of the outer sheath tube, a protection umbrella is fixedly installed at one end of the inner sheath tube, the protection umbrella is conical, the protection umbrella comprises an elastic rod and a protection net, a plurality of elastic rods are uniformly fixedly arranged on the protection net, and one end of the elastic rod is fixedly connected with the end of the inner sheath tube, a through hole is formed in the side of the tube wall of the outer sheath tube away from the protection umbrella, and an adjusting mechanism is arranged between the through hole and the inner sheath tube.

[0009] Further, the adjusting mechanism comprises a locking rod, the locking rod is slidingly arranged in the through hole, both ends of the locking rod extend to the outside of the through hole, one end of the locking rod outside the inner sheath is fixedly provided with a pull plate, both sides of the pull plate are provided with sliding holes, sliding rods are slidingly arranged in the sliding holes, one end of the sliding rod is fixedly connected with the outer sheath, the other end of the sliding rod is fixedly provided with a round block, a spring is movably arranged on the sliding rod wall between the pull plate and the round block, and the inner sheath is uniformly provided with a plurality of locking grooves matched with the locking rod.

[0010] Further, the upper end of the locking rod is provided with an inclined surface near one side of the umbrella.

[0011] Further, the diameter of the round block is greater than the diameter of the spring.

[0012] Further, the inner sheath is fixedly provided with an inner pull ring away from one end of the umbrella.

[0013] Further, the outer sheath is fixedly provided with an outer pull ring away from one end of the umbrella.

[0014] Further, the elastic rod is provided with a bending part away from one end of the inner sheath.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The cardiovascular intervention postoperative kidney blood flow protection sheath device is provided with a net, an elastic rod, an outer sheath, an outer pull ring, an inner pull ring, an inner sheath, a locking rod, a pull plate, a spring, a sliding rod and a round block, when the detached thrombus debris needs to be collected, one hand positions the outer sheath through the outer pull ring, one hand pulls the inner sheath through the inner pull ring, the inner sheath moves to drive the umbrella to move, the outer sheath drives the angles of the plurality of elastic rods to gradually tend to be horizontal and enter the outer sheath, when the inner sheath moves, the locking rod slides out of the locking groove through the inclined surface and is continuously clamped into the left locking groove, the locking rod extrudes the spring through the pull plate, when the plurality of outer sheaths are in the horizontal state, the inner sheath and the outer sheath are inserted into the specified position in the blood vessel, the pull plate is pulled downward, the pull plate extrudes the spring and drives the locking rod to move to the outside of the locking groove, at this moment, the position of the inner sheath in the outer sheath can be moved, the position of the inner sheath in the outer sheath can be positioned through the limiting of the plurality of locking grooves on the locking rod, the angle of the outer sheath to the plurality of elastic rods can be limited, the size of the umbrella can be adjusted, the universality is improved, after the collection of the debris is completed, the umbrella is completely closed, and the bending part can prevent the debris from separating when the elastic rod is bent to be horizontal. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the cardiovascular intervention postoperative kidney blood flow protection sheath device.

[0018] Figure 2 It is a side view structure schematic diagram of a renal blood flow protection sheath device after cardiovascular intervention.

[0019] Figure 3 It is Figure 2 It is an enlarged schematic view of the middle local A part.

[0020] In the figure: 1, mesh bag; 2, elastic rod; 3, outer sheath; 4, outer pull ring; 5, inner pull ring; 6, inner sheath; 7, locking rod; 8, pull plate; 9, spring; 10, sliding rod; 11, round block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1 to 3 The present application provides a technical solution:

[0023] A renal blood flow protection sheath device after cardiovascular intervention, comprising an inner sheath 6 and an outer sheath 3, the inner sheath 6 is slidably arranged inside the outer sheath 3, and both ends of the inner sheath 6 extend to the outside of the outer sheath 3, one end of the inner sheath 6 is fixedly installed with a protection umbrella, the protection umbrella is conical, the protection umbrella comprises an elastic rod 2 and a protection mesh bag 1, a plurality of elastic rods 2 are uniformly fixedly arranged on the protection mesh bag 1, and one end of the elastic rod 2 is fixedly connected with the end of the inner sheath 6, the pipe wall of the outer sheath 3 away from the protection umbrella is provided with a through hole, the through hole and the inner sheath 6 are provided with an adjusting mechanism, the end of the inner sheath 6 away from the protection umbrella is fixedly provided with an inner pull ring 5, the inner pull ring 5 can facilitate pulling the inner sheath 6, the end of the outer sheath 3 away from the protection umbrella is fixedly provided with an outer pull ring 4, and the outer pull ring 4 can facilitate pulling the outer pull ring 4.

[0024] The adjusting mechanism comprises a locking rod 7, the locking rod 7 is slidingly arranged in the through hole, both ends of the locking rod 7 extend to the outside of the through hole, one end of the locking rod 7 outside the inner sheath 6 is fixedly provided with a pull plate 8, both sides of the pull plate 8 are provided with sliding holes, sliding rods 10 are slidingly arranged in the sliding holes, one end of the sliding rod 10 is fixedly connected with the outer sheath 3, the other end of the sliding rod 10 is fixedly provided with a round block 11, the spring 9 is movably sleeved on the rod wall of the sliding rod 10 between the pull plate 8 and the round block 11, the inner sheath 6 is uniformly provided with a plurality of locking grooves matched with the locking rod 7, the upper end of the locking rod 7 is provided with an inclined surface near the side of the umbrella, the locking rod 7 is clamped into the locking groove through the inclined surface, the diameter of the round block 11 is greater than the diameter of the spring 9, and the round block 11 can limit the spring 9.

[0025] The elastic rod 2 is provided with a bending part at the end away from the inner sheath 6, the bending part can drive the mesh bag 1 to limit the intercepted debris, and the debris can be prevented from separating from the umbrella when the umbrella is closed.

[0026] When the detached thrombus debris needs to be collected, one hand positions the outer sheath 3 through the outer pull ring 4, and the other hand pulls the inner sheath 6 through the inner pull ring 5, the inner sheath 6 moves to drive the umbrella to move, the outer sheath 3 drives the angles of the plurality of elastic rods 2 to gradually tend to be horizontal and enter the outer sheath 3, the locking rod 7 slides out of the locking groove through the inclined surface when the inner sheath 6 moves, and continuously clamps into the locking groove on the left side, the locking rod 7 extrudes the spring 9 through the pull plate 8, when the plurality of outer sheaths 3 are in the horizontal state, the inner sheath 6 and the outer sheath 3 are inserted into the specified position in the blood vessel, the pull plate 8 extrudes the spring 9 while driving the locking rod 7 to move to the outside of the locking groove by pulling down, at this time, the position of the inner sheath 6 in the outer sheath 3 can be moved, the position of the inner sheath 6 in the outer sheath 3 can be positioned through the limitation of the plurality of locking grooves on the locking rod 7, the angle of the outer sheath 3 to the plurality of elastic rods 2 can be limited, and then the size of the umbrella can be adjusted, after the collection of the debris is completed, the umbrella is completely closed, and the bending part can prevent the debris from separating when the elastic rod 2 is bent to be horizontal.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A renal blood flow protection sheath device after cardiovascular intervention, comprising an inner sheath (6) and an outer sheath (3), characterized in that: The inner sheath (6) is slidingly arranged inside the outer sheath (3), and both ends of the inner sheath (6) extend outside the outer sheath (3), one end of the inner sheath (6) is fixedly installed with a protective umbrella, the protective umbrella is conical, the protective umbrella comprises elastic rods (2) and a protective mesh bag (1), a plurality of elastic rods (2) are uniformly fixed on the protective mesh bag (1), and one end of the elastic rod (2) is fixedly connected with the end of the inner sheath (6), the side of the pipe wall of the outer sheath (3) away from the protective umbrella is provided with a through hole, and an adjusting mechanism is arranged between the through hole and the inner sheath (6).

2. The renal blood flow protection sheath apparatus for use after cardiovascular interventions according to claim 1, characterized in that: The adjusting mechanism comprises a locking rod (7), the locking rod (7) is slidingly arranged in the through hole, both ends of the locking rod (7) extend outside the through hole, one end of the locking rod (7) located outside the inner sheath (6) is fixedly provided with a pull plate (8), the pull plate (8) is provided with a sliding hole on both sides, a sliding rod (10) is slidingly arranged in the sliding hole, the sliding rod (10) is slidingly arranged in the sliding hole, one end of the sliding rod (10) is fixedly connected with the outer sheath (3), the other end of the sliding rod (10) is fixedly provided with a circular block (11), a spring (9) is movably sleeved on the rod wall of the sliding rod (10) between the pull plate (8) and the circular block (11), and the outer pipe wall of the inner sheath (6) is uniformly provided with a plurality of locking grooves matched with the locking rod (7).

3. The renal blood flow protection sheath apparatus after cardiovascular intervention of claim 2, wherein: The upper end of the locking rod (7) is provided with an inclined surface close to the side of the protective umbrella.

4. The renal blood flow protection sheath apparatus of claim 2, wherein: The diameter of the circular block (11) is greater than the diameter of the spring (9).

5. The renal blood flow protection sheath apparatus of claim 1, wherein: The end of the inner sheath (6) away from the protective umbrella is fixedly provided with an inner pull ring (5).

6. The renal blood flow protection sheath apparatus of claim 1, wherein: The end of the outer sheath (3) away from the protective umbrella is fixedly provided with an outer pull ring (4).

7. The renal blood flow protection sheath apparatus of claim 1, wherein: The end of the elastic rod (2) away from the inner sheath (6) is provided with a bending part. The end of the elastic rod (2) away from the inner sheath (6) is provided with a bending part.

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