Anti-bending hypotube

Abstract

The invention discloses an anti-bending hypotube, and relates to the technical field of hypotubes. The anti-bending hypotube comprises a hypotube body, a plurality of L-shaped rubber plates are fixedly connected to the inner side wall of the hypotube body, two symmetrically-arranged fixing blocks are fixedly connected to the inner side wall of the hypotube body, and rubber tubes are fixedly inserted into the opposite side walls of the two fixing blocks. A plurality of connecting rods arranged in an array mode are fixedly connected between the rubber plates and the rubber pipes, and a connecting mechanism is arranged between every two adjacent connecting rods. Each connecting mechanism comprises a first sleeve rod. According to the anti-bending hypotube, the internal supporting effect on the hypotube body can be achieved, and the anti-bending effect of the hypotube body is better; after the hypotube body is bent, the hypotube body can be supported and limited, so that the hypotube body can be kept in a bent state, the hypotube body is prevented from being bent at will, the using effect is guaranteed, and the anti-bending effect of the hypotube body is better.

Description

Technical Field

[0001] The invention relates to the technical field of hypotubes, in particular to a bending-resistant hypotube. Background Art

[0002] The hypotube itself is a component commonly used in medical devices. It refers to the metal tube at the proximal end (the end closest to the operator) of the balloon dilatation catheter. It will enter the human body during interventional surgery. The material is generally medical grade 304 stainless steel. In stent implantation, the hypotube is part of the delivery system, and its design often needs to consider bending resistance to meet the requirements during use.

[0003] However, the existing anti-bending sea wave tube still has the problem of poor anti-bending effect when in use, and after bending, it is not convenient to keep it in a bent state, which affects its use effect and also has the problem of poor anti-bending effect. Summary of the invention

[0004] The object of the present invention is to provide a bending-resistant hypotube to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bending-resistant hypotube, comprising a hypotube body, the inner side wall of the hypotube body is fixedly connected with a plurality of L-shaped rubber plates, and the inner side wall of the hypotube body is fixedly connected with two symmetrically arranged fixing blocks, the opposite side walls of the two fixing blocks are fixedly inserted with rubber tubes, and a plurality of array-arranged connecting rods are fixedly connected between each rubber plate and the rubber tube, and a connecting mechanism is arranged between two adjacent connecting rods; Each of the connecting mechanisms includes a first set of rods, and a first rotating mechanism is arranged between one end of the first set of rods and the connecting rod, the other end of the first set of rods is sleeved with a first sleeve, and a second rotating mechanism is arranged between the other end of the first sleeve and the connecting rod, and the side wall of the rubber tube is provided with a limiting mechanism for limiting the first set of rods and the first sleeve.

[0006] Preferably, the first rotating mechanism comprises a first mounting groove formed on a side wall of the connecting rod, and a first universal ball is arranged in the first mounting groove, and one end of the first sleeve rod is fixed to the side wall of the first universal ball.

[0007] Preferably, the second rotating mechanism comprises a second mounting groove formed on a side wall of the connecting rod, and a second universal ball is arranged in the second mounting groove, and the other end of the first sleeve is fixed to the side wall of the second universal ball.

[0008] Preferably, the limiting mechanism includes a moving block, and the moving block is connected to the side wall of the rubber tube through a first moving mechanism, the side wall of the moving block is fixedly connected with a plurality of pins arranged in an array, the side wall of the first sleeve rod is provided with a plurality of first sockets arranged in an array, and the side wall of the first sleeve is provided with a plurality of second sockets arranged in an array.

[0009] Preferably, the first moving mechanism includes a fixed tube fixedly inserted in the side wall of the rubber tube, and a moving rod is inserted in the fixed tube, the other end of the moving rod is fixed to the side wall of the moving block, a guiding mechanism is arranged between the moving block and the rubber tube, and a reset member is arranged between the moving block and the rubber tube, the rubber tube is filled with hydraulic oil, and an extrusion mechanism for extruding the hydraulic oil is arranged at the end of the rubber tube.

[0010] Preferably, the guide mechanism comprises two symmetrically arranged second sleeve rods fixedly connected to the side wall of the moving block, and the side wall of the second sleeve rod is sleeved with a second sleeve tube, and the other end of the second sleeve tube is fixed to the side wall of the rubber tube.

[0011] Preferably, the reset member comprises a spring sleeved on the side wall of each second sleeve, and two ends of the spring are respectively fixed to the moving block and the side wall of the rubber tube.

[0012] Preferably, the extrusion mechanism comprises a through hole opened at one end of the rubber tube, and a piston rod is connected to the through hole via a second moving mechanism.

[0013] Preferably, the second moving mechanism includes two symmetrically arranged first connecting blocks fixedly connected to the side walls of the piston rod, and the side walls of the rubber tube are fixedly connected to two symmetrically arranged second connecting blocks, the side wall of one of the first connecting blocks is fixedly connected to a third sleeve rod, and the side wall of the third sleeve rod is sleeved with a third sleeve tube, the other end of the third sleeve tube is fixed to the side wall of one of the second connecting blocks, and the side wall of the other first connecting block is rotatably connected to a threaded rod, the side wall of the threaded rod is threadedly connected to a threaded tube, and the other end of the threaded tube is fixed to the side wall of the other second connecting block.

[0014] Preferably, one end of the threaded rod away from the threaded tube is fixedly connected to a rocking wheel, and a rubber sleeve is provided on the side wall of the rocking wheel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The anti-bending hypotube is provided with a rubber tube and a plurality of rubber plates inside a hypotube body by arranging a rubber plate, etc., and a plurality of connecting rods are fixedly connected between each rubber plate and the rubber tube, which can provide an internal support effect for the hypotube body and make it more anti-bending; by arranging a connecting mechanism and a limiting mechanism, etc., when the hypotube body is bent during use, the rubber plate and the rubber tube can be adaptively bent at this time, and at the same time, when the rubber plate and the rubber tube are bent, the first universal ball can be adaptively rolled and adjusted in the first mounting groove, and the second universal ball can be adaptively rolled and adjusted in the second mounting groove, and The first set of rods can slide along the first sleeve. After the bending is completed, the rocker is turned. The rotation of the rocker drives the threaded rod to rotate, thereby driving the piston rod to move in the direction close to the rubber tube, thereby squeezing the hydraulic oil temporarily stored in the rubber tube and entering the fixed tube. Under the action of the hydraulic pressure, the moving rod and the moving block can be pushed to move, and the pin can be inserted into the second socket and the first socket to limit the first set of rods and the first sleeve. At this time, the hypotube body can be supported and limited so that it can maintain a bent state, avoid arbitrary bending, ensure the use effect, and make its anti-bending effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the position of the connecting mechanism in the present invention; Figure 4 A schematic diagram showing the position of the connecting mechanism in the present invention from another perspective; Figure 5 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 6 for Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 7 for Figure 3 Schematic diagram of the enlarged structure at C in the middle; Figure 8 for Figure 4 Schematic diagram of the enlarged structure at D in the middle; Fig. 9 for Figure 5 Schematic diagram of the enlarged structure at E in the middle.

[0017] In the figure: 1, hypotube body; 2, first rotating mechanism; 201, first mounting groove; 202, first universal ball; 3, second rotating mechanism; 301, second mounting groove; 302, second universal ball; 4, limiting mechanism; 401, first plug hole; 402, second plug hole; 403, moving block; 404, latch; 5, spring; 6, guiding mechanism; 601, second sleeve; 602, second sleeve rod; 7, first moving mechanism; 701, moving rod; 70 2. Fixed tube; 8. Rocker; 9. Extrusion mechanism; 901. Through hole; 902. Piston rod; 10. Second moving mechanism; 1001. First connecting block; 1002. Second connecting block; 1003. Third set of rods; 1004. Third sleeve; 1005. Threaded rod; 1006. Threaded tube; 11. Rubber sheet; 12. Fixed block; 13. Rubber tube; 14. Connecting rod; 15. Connecting mechanism; 1501. First set of rods; 1502. First sleeve. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-Figure 9 The present invention provides a technical solution: a bending-resistant hypotube, comprising a hypotube body 1, a plurality of L-shaped rubber plates 11 are fixedly connected to the inner side wall of the hypotube body 1, and two symmetrically arranged fixing blocks 12 are fixedly connected to the inner side wall of the hypotube body 1, and rubber tubes 13 are fixedly inserted into the opposite side walls of the two fixing blocks 12, and a plurality of array-arranged connecting rods 14 are fixedly connected between each rubber plate 11 and the rubber tube 13, and a connecting mechanism 15 is arranged between each adjacent two connecting rods 14; Each connecting mechanism 15 includes a first set of rods 1501, and a first rotating mechanism 2 is arranged between one end of the first set of rods 1501 and the connecting rod 14, the other end of the first set of rods 1501 is sleeved with a first sleeve 1502, and a second rotating mechanism 3 is arranged between the other end of the first sleeve 1502 and the connecting rod 14, and the side wall of the rubber tube 13 is provided with a limiting mechanism 4 for limiting the first set of rods 1501 and the first sleeve 1502, which can play an internal supporting effect on the sea wave tube body 1 and make it more anti-bending; after the sea wave tube body 1 is bent, the sea wave tube body 1 can be supported and limited so that it can maintain a bent state, avoid it from bending at will, ensure the use effect, and make it more anti-bending.

[0020] See also Figure 7The first rotating mechanism 2 includes a first mounting groove 201 opened on the side wall of the connecting rod 14, and a first universal ball 202 is arranged in the first mounting groove 201. One end of the first set of rods 1501 is fixed to the side wall of the first universal ball 202 to ensure that the first set of rods 1501 can rotate arbitrarily.

[0021] See also Figure 8 The second rotating mechanism 3 includes a second mounting groove 301 opened on the side wall of the connecting rod 14, and a second universal ball 302 is arranged in the second mounting groove 301. The other end of the first sleeve 1502 is fixed to the side wall of the second universal ball 302 to ensure that the first sleeve 1502 can rotate arbitrarily.

[0022] See also Figure 7 The limiting mechanism 4 includes a moving block 403, and the moving block 403 is connected to the side wall of the rubber tube 13 through the first moving mechanism 7. The side wall of the moving block 403 is fixedly connected with a plurality of latches 404 arranged in an array. The side wall of the first sleeve 1501 is provided with a plurality of first jacks 401 arranged in an array, and the side wall of the first sleeve 1502 is provided with a plurality of second jacks 402 arranged in an array. When the hypotube body 1 is bent, the rubber plate 11 and the rubber tube 13 can bend adaptively. At the same time, when the rubber plate 11 and the rubber tube 13 are bent, the first universal ball 202 can be in the first mounting groove 201. The second universal ball 302 can perform adaptive rolling adjustment in the second installation groove 301, and the first set of rods 1501 can slide along the first sleeve 1502. After the bending is completed, the moving block 403 is driven to move by the first moving mechanism 7, and the pin 404 is inserted into the second socket 402 and the first socket 401, so as to limit the first set of rods 1501 and the first sleeve 1502. At this time, the sea wave tube body 1 can be supported and limited, so that it can maintain the bending state, avoid it from bending at will, ensure the use effect, and make it have better anti-bending effect.

[0023] See also Figure 7 The first moving mechanism 7 includes a fixed tube 702 fixedly inserted in the side wall of the rubber tube 13, and a moving rod 701 is inserted in the fixed tube 702, the other end of the moving rod 701 is fixed to the side wall of the moving block 403, a guide mechanism 6 is arranged between the moving block 403 and the rubber tube 13, and a reset member is arranged between the moving block 403 and the rubber tube 13, the rubber tube 13 is filled with hydraulic oil, and an extrusion mechanism 9 for extruding the hydraulic oil is arranged at the end of the rubber tube 13, the hydraulic oil in the rubber tube 13 is squeezed by the extrusion mechanism 9, and under the action of the hydraulic pressure, the moving rod 701 and the moving block 403 can be pushed to move.

[0024] See also Figure 7The guide mechanism 6 includes two symmetrically arranged second rods 602 fixedly connected to the side walls of the moving block 403, and the side walls of the second rods 602 are sleeved with second sleeves 601, and the other end of the second sleeve 601 is fixed to the side wall of the rubber tube 13, which plays a guiding and limiting role in the movement of the moving block 403.

[0025] See also Figure 7 The reset member includes a spring 5 sleeved on the side wall of each second sleeve 601, and the two ends of the spring 5 are respectively fixed to the side wall of the moving block 403 and the rubber tube 13, so as to reset the movement of the moving block 403.

[0026] See also Fig. 9 The extrusion mechanism 9 includes a through hole 901 opened at one end of the rubber tube 13, and a piston rod 902 is connected to the through hole 901 through a second moving mechanism 10. The piston rod 902 is driven by the second moving mechanism 10 to move toward the rubber tube 13, so that the hydraulic oil temporarily stored in the rubber tube 13 can be squeezed.

[0027] See also Fig. 9 The second moving mechanism 10 includes two symmetrically arranged first connecting blocks 1001 fixedly connected to the side walls of the piston rod 902, and the side walls of the rubber tube 13 are fixedly connected to two symmetrically arranged second connecting blocks 1002, wherein the side wall of one of the first connecting blocks 1001 is fixedly connected with a third sleeve rod 1003, and the side wall of the third sleeve rod 1003 is sleeved with a third sleeve tube 1004, the other end of the third sleeve tube 1004 is fixed to the side wall of one of the second connecting blocks 1002, and the side wall of the other first connecting block 1001 is rotatably connected with a threaded rod 1005, the side wall of the threaded rod 1005 is threadedly connected with a threaded tube 1006, and the other end of the threaded tube 1006 is fixed to the side wall of the other second connecting block 1002, and when the threaded rod 1005 rotates, it can drive the piston rod 902 to move in a direction close to the rubber tube 13.

[0028] See also Fig. 9 One end of the threaded rod 1005 away from the threaded tube 1006 is fixedly connected to a rocking wheel 8, and a rubber sleeve is provided on the side wall of the rocking wheel 8. When the rocking wheel 8 is rotated, the rotation of the rocking wheel 8 drives the threaded rod 1005 to rotate.

[0029] Working principle: By arranging a rubber tube 13 and a plurality of rubber plates 11 inside the hypotube body 1, and a plurality of connecting rods 14 are fixedly connected between each rubber plate 11 and the rubber tube 13, the hypotube body 1 can be internally supported, so that the hypotube body 1 has a better anti-bending effect; When in use, when the hypotube body 1 is bent, the rubber plate 11 and the rubber tube 13 can bend adaptively. At the same time, when the rubber plate 11 and the rubber tube 13 are bent, the first universal ball 202 can be adaptively rolled and adjusted in the first mounting groove 201, the second universal ball 302 can be adaptively rolled and adjusted in the second mounting groove 301, and the first sleeve rod 1501 can slide along the first sleeve tube 1502. After the bending is completed, the rocker 8 is turned, and the rotation of the rocker 8 drives the threaded rod 1005 to rotate, thereby driving the piston rod 902 to move in the direction close to the rubber tube 13, so as to squeeze the hydraulic oil temporarily stored in the rubber tube 13, and at the same time, enter the fixed tube 702, and under the action of the hydraulic pressure, it can push the moving rod 701 and the moving block 403 to move, and insert the pin 404 into the second socket 402 and the first socket 401, so as to limit the first set of rods 1501 and the first sleeve 1502. At this time, the sea wave tube body 1 can be supported and limited, so that it can maintain the bent state, avoid it from bending at will, ensure the use effect, and make it have better anti-bending effect.

Claims

1. A bending-resistant hypotube, comprising a hypotube body (1), characterized in that: The inner side wall of the hypotube body (1) is fixedly connected to a plurality of L-shaped rubber plates (11), and the inner side wall of the hypotube body (1) is fixedly connected to two symmetrically arranged fixing blocks (12), and rubber tubes (13) are fixedly inserted into the opposite side walls of the two fixing blocks (12), and a plurality of connecting rods (14) arranged in an array are fixedly connected between each rubber plate (11) and the rubber tube (13), and a connecting mechanism (15) is provided between each adjacent two connecting rods (14); Each of the connecting mechanisms (15) comprises a first sleeve rod (1501), wherein a first rotating mechanism (2) is arranged between one end of the first sleeve rod (1501) and the connecting rod (14), a first sleeve tube (1502) is sleeved on the other end of the first sleeve rod (1501), and a second rotating mechanism (3) is arranged between the other end of the first sleeve tube (1502) and the connecting rod (14), and a limiting mechanism (4) for limiting the first sleeve rod (1501) and the first sleeve tube (1502) is arranged on the side wall of the rubber tube (13).

2. The bending-resistant hypotube according to claim 1, characterized in that: The first rotating mechanism (2) comprises a first mounting groove (201) formed on a side wall of the connecting rod (14), a first universal ball (202) being arranged in the first mounting groove (201), and one end of the first sleeve rod (1501) being fixed to the side wall of the first universal ball (202).

3. The bending-resistant hypotube according to claim 1, characterized in that: The second rotating mechanism (3) comprises a second mounting groove (301) formed on a side wall of the connecting rod (14), a second universal ball (302) being arranged in the second mounting groove (301), and the other end of the first sleeve (1502) is fixed to the side wall of the second universal ball (302).

4. The bending-resistant hypotube according to claim 1, characterized in that: The limiting mechanism (4) comprises a moving block (403), and the moving block (403) is connected to the side wall of the rubber tube (13) via a first moving mechanism (7), a plurality of latches (404) arranged in an array are fixedly connected to the side wall of the moving block (403), a plurality of first plug holes (401) arranged in an array are formed on the side wall of the first sleeve rod (1501), and a plurality of second plug holes (402) arranged in an array are formed on the side wall of the first sleeve tube (1502).

5. The bending-resistant hypotube according to claim 4, characterized in that: The first moving mechanism (7) comprises a fixed tube (702) fixedly inserted into the side wall of the rubber tube (13), and a moving rod (701) is inserted into the fixed tube (702), the other end of the moving rod (701) is fixed to the side wall of the moving block (403), a guide mechanism (6) is provided between the moving block (403) and the rubber tube (13), and a reset member is provided between the moving block (403) and the rubber tube (13), the rubber tube (13) is filled with hydraulic oil, and an extrusion mechanism (9) for extruding the hydraulic oil is provided at the end of the rubber tube (13).

6. The bending-resistant hypotube according to claim 5, characterized in that: The guide mechanism (6) comprises two symmetrically arranged second sleeve rods (602) fixedly connected to the side wall of the moving block (403), and the side wall of the second sleeve rods (602) is sleeved with a second sleeve tube (601), and the other end of the second sleeve tube (601) is fixed to the side wall of the rubber tube (13).

7. The bending-resistant hypotube according to claim 5, characterized in that: The reset member comprises a spring (5) sleeved on the side wall of each second sleeve (601), and two ends of the spring (5) are respectively fixed to the moving block (403) and the side wall of the rubber tube (13).

8. The bending-resistant hypotube according to claim 5, characterized in that: The squeezing mechanism (9) comprises a through hole (901) formed at one end of the rubber tube (13), and a piston rod (902) is connected to the through hole (901) via a second moving mechanism (10).

9. The bending-resistant hypotube according to claim 8, characterized in that: The second moving mechanism (10) comprises two symmetrically arranged first connecting blocks (1001) fixedly connected to the side wall of the piston rod (902), and the side wall of the rubber tube (13) is fixedly connected to two symmetrically arranged second connecting blocks (1002), wherein the side wall of one of the first connecting blocks (1001) is fixedly connected to a third sleeve rod (1003), and the side wall of the third sleeve rod (1003) is sleeved with a third sleeve tube (1004), the other end of the third sleeve tube (1004) is fixed to the side wall of one of the second connecting blocks (1002), and the side wall of the other first connecting block (1001) is rotatably connected to a threaded rod (1005), the side wall of the threaded rod (1005) is threadedly connected to a threaded tube (1006), and the other end of the threaded tube (1006) is fixed to the side wall of the other second connecting block (1002).

10. The bending-resistant hypotube according to claim 9, characterized in that: One end of the threaded rod (1005) away from the threaded tube (1006) is fixedly connected to a rocking wheel (8), and a rubber sleeve is provided on the side wall of the rocking wheel (8).

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