Novel embolism spring ring device

Abstract

The utility model discloses a novel embolism spring ring device which comprises an auxiliary catheter, guide grooves are formed in the two sides of the inner wall of the auxiliary catheter, guide blocks are arranged in the two guide grooves in a sliding mode, an arc-shaped seat is fixedly arranged between the two guide blocks, and a connecting piece is arranged on the inner side of the arc-shaped seat in a clamped mode. According to the novel embolism spring ring device, the structures such as the pushing wire, the connecting block, the arc-shaped seat, the connecting piece and the spring ring are guided into the auxiliary guide pipe, so that the two guide blocks are in sliding connection with the two guide grooves respectively until the two limiting blocks are clamped with the two limiting holes, and then the two guide blocks are limited; and then a pushing wire is pushed, so that two limiting elastic pieces are separated from two limiting grooves, then a connecting block is driven to move, a connecting piece is pushed to move through the connecting block, two connecting clamping columns are separated from two connecting clamping grooves, then the connecting piece is dismounted, and therefore precise conveying of the spring ring is achieved.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a novel embolism coil device. Background Art

[0002] In the prior art, aneurysms are generally treated by embolization therapy with implanted coils. The current mainstream coil release methods mainly include electrolysis release, hydrolysis release and mechanical release. The electrolysis release method is that the part of the coil connected to the guide wire is disconnected due to electrolysis, so that the coil is released and remains in the aneurysm. The coil and the guide wire are generally connected by welding, but the welding part is uneven, resulting in uncontrollable electrolysis release time, which usually ranges from tens of seconds to several minutes. Long release time will bring additional risks to the operation. The hydrolysis release method is that the coil and the delivery guide wire are released by injecting an aqueous solution into the delivery catheter. This release method has poor stability and low controllability. The mechanical release method is that after the coil is pushed into place by the push rod, the lock or limit structure between the push rod and the coil is contacted by a mechanical structure to achieve the purpose of releasing the coil.

[0003] Most of the current mechanical release structures include a push tube and a limit wire. An opening is provided on the tube wall at the distal end of the push tube, or a circular step is provided inside the tube at the distal end of the push tube. There is a spherical protrusion at the proximal end of the spring coil, which is located inside the distal end of the push tube. The limit wire is located inside the push tube and extends out of the distal end of the push tube. When the limit wire is withdrawn, the spherical protrusion at the proximal end of the spring coil can be released from the push tube. However, in actual operation, before the limit wire is withdrawn, the spring coil has reached the aneurysm, and when the limit wire is withdrawn, the spherical protrusion on the spring coil is subjected to force, which may cause the spring coil to shift, affecting the treatment effect. Moreover, after the limit wire is withdrawn, although the protrusion of the spring coil has been released, the spring coil is still located in the push tube. There is still a certain probability that the spring coil will shift during the withdrawal of the push tube, which brings additional risks to the operation and reduces the safety of the operation.

[0004] In order to solve the above problems, a new embolic coil device is proposed herein. Utility Model Content

[0005] The purpose of the utility model is to provide a novel embolic spring coil device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel embolic spring coil device, comprising an auxiliary catheter, guide grooves are provided on both sides of the inner wall of the auxiliary catheter, guide blocks are slidably provided inside the two guide grooves, an arc seat is fixedly provided between the two guide blocks, a connecting piece is provided on the inner side of the arc seat, a spring coil is fixedly connected to the side of the connecting piece away from the arc seat, a through groove is provided in the middle of the arc seat, a connecting block is inserted in the through groove, mounting grooves are provided on both sides of the inner wall of the through groove, limiting spring sheets are fixedly provided inside the two mounting grooves, limiting grooves are provided on both sides of the connecting block, a push wire is fixedly connected to one side of the connecting block, placement grooves are provided at the connection between the two guide blocks and the two guide grooves, support springs are fixedly connected to the inner sides of the two placement grooves, connecting strips are fixedly connected to the ends of the two support springs away from the inner side of the placement groove, limiting blocks are fixedly provided in the middle of the two connecting strips, and limiting holes are provided at the connection between the two guide grooves and the two guide blocks.

[0007] By introducing the push wire, connecting block, arc seat, connecting piece and spring coil into the auxiliary guide tube, the two guide blocks are respectively slidably connected with the two guide grooves until the two limit blocks are engaged with the two limit holes, and then the two guide blocks are limited, thereby limiting the arc seat, and then the push wire is pushed to separate the two limit springs from the two limit grooves, thereby driving the connecting block to move, and pushing the connecting piece to move through the connecting block, so that the two connecting clamping columns are separated from the two connecting clamping grooves, and then the connecting piece is removed, thereby realizing accurate delivery of the spring coil.

[0008] Preferably, the two limiting blocks are respectively engaged with the two limiting holes, and the arc seat can be limited by the two limiting blocks being respectively engaged with the two limiting holes.

[0009] Preferably, both sides of the inner walls of the two accommodating grooves are provided with sliding grooves, and the four sliding grooves are respectively slidably connected to the two ends of the two connecting strips, so as to ensure the stable movement of the two limit blocks.

[0010] Preferably, the two limiting spring sheets are respectively engaged with the two limiting grooves, and the connection block is conveniently connected to the arc seat through the limiting engagement of the two limiting spring sheets with the two limiting grooves.

[0011] Preferably, two connecting clamps are fixedly connected at the connection between the arc seat and the connecting piece, and two connecting slots are provided at the connection between the connecting piece and the arc seat. The two connecting slots are respectively engaged with the two connecting clamps, and the connecting piece is conveniently connected to the arc seat through the limiting engagement of the two connecting slots with the two connecting clamps.

[0012] Preferably, the connecting block is arranged corresponding to the connecting piece, and the connecting piece can be easily pushed out through the arrangement of the connecting block.

[0013] Preferably, one end of the pushing wire away from the connecting block extends to the outside.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By introducing the push wire, connecting block, arc seat, connecting piece and spring coil into the auxiliary catheter, the two guide blocks are slidably connected with the two guide grooves respectively until the two limit blocks are engaged with the two limit holes, and then the two guide blocks are limited, thereby limiting the arc seat, and then the push wire is pushed to separate the two limit springs from the two limit grooves, thereby driving the connecting block to move, and pushing the connecting piece to move through the connecting block, so that the two connecting clamping columns are separated from the two connecting clamping grooves, and then the connecting piece is removed, thereby realizing accurate delivery of the spring coil. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a front sectional view of the utility model.

[0018] Figure 3 It is an enlarged view of part A of the utility model.

[0019] Figure 4 It is an enlarged view of part B of the utility model.

[0020] In the figure: 1. Auxiliary guide tube; 2. Guide groove; 3. Arc seat; 4. Connector; 5. Connecting block; 6. Push wire; 7. Spring ring; 8. Guide block; 9. Receiving groove; 10. Support spring; 11. Connecting strip; 12. Limit block; 13. Limit hole; 14. Slide groove; 15. Through groove; 16. Limit groove; 17. Mounting groove; 18. Limit spring; 19. Connecting card slot; 20. Connecting card column. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figure 1-4The utility model provides a novel embolic spring coil device, comprising an auxiliary catheter 1, guide grooves 2 are provided on both sides of the inner wall of the auxiliary catheter 1, guide blocks 8 are slidably arranged inside the two guide grooves 2, an arc seat 3 is fixedly arranged between the two guide blocks 8, a connecting piece 4 is clamped on the inner side of the arc seat 3, a spring coil 7 is fixedly connected to the side of the connecting piece 4 away from the arc seat 3, a through groove 15 is provided in the middle of the arc seat 3, a connecting block 5 is inserted in the through groove 15, mounting grooves 17 are provided on both sides of the inner wall of the through groove 15, limiting spring sheets 18 are fixedly arranged inside the two mounting grooves 17, limiting grooves 16 are provided on both sides of the connecting block 5, a push wire 6 is fixedly connected to one side of the connecting block 5, and placement grooves 9 are provided at the connection between the two guide blocks 8 and the two guide grooves 2, respectively, and support springs 10 are fixedly connected to the inner sides of the two placement grooves 9. The ends of the springs 10 away from the inner side of the placement grooves 9 are fixedly connected with connecting strips 11, and the middle parts of the two connecting strips 11 are fixedly provided with limiting blocks 12. Limiting holes 13 are respectively provided at the connection points between the two guide grooves 2 and the two guide blocks 8. By introducing the push wire 6, the connecting block 5, the arc seat 3, the connecting piece 4 and the spring coil 7 and other structures into the auxiliary catheter 1, the two guide blocks 8 are respectively slidably connected with the two guide grooves 2 until the two limiting blocks 12 are engaged with the two limiting holes 13, and then the two guide blocks 8 are limited, thereby limiting the arc seat 3, and then the push wire 6 is pushed to separate the two limiting spring sheets 18 from the two limiting grooves 16, thereby driving the connecting block 5 to move, and pushing the connecting piece 4 to move through the connecting block 5, so that the two connecting clamping columns 20 are separated from the two connecting clamping grooves 19, and then the connecting piece 4 is removed, thereby realizing the precise delivery of the spring coil 7.

[0023] When in use, the two limit blocks 12 are respectively engaged with the two limit holes 13, and the two sides of the inner wall of the two placement grooves 9 are provided with slide grooves 14. The four slide grooves 14 are respectively slidably connected with the two ends of the two connecting strips 11, and the two limit springs 18 are respectively engaged with the two limit grooves 16.

[0024] The arc seat 3 can be limited by the two limiting blocks 12 respectively engaging with the two limiting holes 13 , and the connection block 5 can be connected to the arc seat 3 by the two limiting spring sheets 18 respectively engaging with the two limiting grooves 16 .

[0025] When in use, two connecting posts 20 are fixedly connected at the connection between the arc seat 3 and the connecting member 4, and two connecting slots 19 are provided at the connection between the connecting member 4 and the arc seat 3. The two connecting slots 19 are respectively engaged and connected with the two connecting posts 20. The connecting block 5 and the connecting member 4 are arranged correspondingly, and the push wire 6 extends to the outside at one end away from the connecting block 5.

[0026] The two connection slots 19 are respectively engaged with the two connection posts 20 to facilitate the connection of the connection member 4 to the arc seat 3 , and the connection block 5 is provided to facilitate the ejection of the connection member 4 .

[0027] When the embodiment of the present application is in use: the two limiting spring sheets 18 are respectively engaged with the two limiting grooves 16 and the two connecting grooves 19 are respectively engaged with the two connecting clamping columns 20 to facilitate the connection of the push wire 6, the connecting block 5, the arc seat 3, the connecting piece 4 and the spring coil 7 into an integrated structure, so that the push wire 6 can drive the spring coil 7 to move back and forth, and then the push wire 6, the connecting block 5, the arc seat 3, the connecting piece 4 and the spring coil 7 are introduced into the auxiliary catheter 1, so that the two guide blocks 8 are respectively slidably connected with the two guide grooves 2 until the two limiting blocks 12 are engaged with the two limiting holes 13, and then the two guide blocks 8 are limited, thereby limiting the arc seat 3, and then the push wire 6 is pushed, so that the two limiting spring sheets 18 are separated from the two limiting grooves 16, thereby driving the connecting block 5 to move, and pushing the connecting piece 4 to move through the connecting block 5, so that the two connecting clamping columns 20 are separated from the two connecting grooves 19, and then the connecting piece 4 is removed, thereby realizing the precise delivery of the spring coil 7.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel embolic coil device, comprising an auxiliary catheter (1), characterized in that: Guide grooves (2) are provided on both sides of the inner wall of the auxiliary conduit (1), guide blocks (8) are slidably arranged inside the two guide grooves (2), an arc seat (3) is fixedly arranged between the two guide blocks (8), a connecting piece (4) is clamped and arranged on the inner side of the arc seat (3), a spring ring (7) is fixedly connected to the side of the connecting piece (4) away from the arc seat (3), a through groove (15) is provided in the middle of the arc seat (3), a connecting block (5) is inserted inside the through groove (15), mounting grooves (17) are provided on both sides of the inner wall of the through groove (15), and limited spacers are fixedly arranged inside the two mounting grooves (17). A spring sheet (18) is provided on both sides of the connecting block (5), a limiting groove (16) is provided on one side of the connecting block (5), a push wire (6) is fixedly connected to the two guide blocks (8), a placement groove (9) is provided at the connection between the two guide blocks (8) and the two guide grooves (2), a support spring (10) is fixedly connected to the inner side of the two placement grooves (9), a connecting strip (11) is fixedly connected to one end of the two support springs (10) away from the inner side of the placement groove (9), a limiting block (12) is fixedly provided at the middle of the two connection strips (11), and a limiting hole (13) is provided at the connection between the two guide grooves (2) and the two guide blocks (8).

2. A novel embolic coil device according to claim 1, characterized in that: The two limit blocks (12) are respectively engaged and connected with the two limit holes (13).

3. A novel embolic coil device according to claim 1, characterized in that: Slide grooves (14) are provided on both sides of the inner walls of the two placement grooves (9), and the four slide grooves (14) are respectively slidably connected to the two ends of the two connecting strips (11).

4. The novel embolic coil device according to claim 1, characterized in that: The two limiting spring pieces (18) are respectively engaged and connected with the two limiting grooves (16).

5. The novel embolic coil device according to claim 1, characterized in that: Two connection clamping columns (20) are fixedly connected at the connection point between the arc seat (3) and the connection member (4), and two connection clamping grooves (19) are provided at the connection point between the connection member (4) and the arc seat (3), and the two connection clamping grooves (19) are respectively engaged and connected with the two connection clamping columns (20).

6. The novel embolic coil device according to claim 1, characterized in that: The connecting block (5) is arranged corresponding to the connecting piece (4).

7. The novel embolic coil device according to claim 1, characterized in that: One end of the pushing wire (6) away from the connecting block (5) extends to the outside.

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