Plug spring ring and processing device thereof

Abstract

The utility model provides an embolism spring ring and a machining device thereof, and belongs to the technical field of embolism spring rings. The embolism spring ring is provided with a plurality of transverse parts arranged at intervals and a plurality of longitudinal parts arranged at intervals, the transverse parts and the longitudinal parts are both of spiral winding spring structures, the transverse parts and the longitudinal parts are arranged in a staggered mode, and the axes of the transverse parts are perpendicular to the axes of the longitudinal parts; the machining device for the embolism spring ring comprises a winding rod, a plurality of winding columns arranged at intervals in the axial direction of the winding rod are arranged on the winding rod, and the winding columns are perpendicular to the axis direction of the winding rod; according to the technical scheme, the plug spring ring is used for solving the technical problems that in the prior art, a spring ring has structural defects, the plug effect is poor, and the spring ring is inconvenient to stack into a closed structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of embolic spring coils, and in particular relates to an embolic spring coil and a processing device thereof. Background Art

[0002] Intravascular embolization refers to a technique in which embolic materials are filled into the target blood vessel through a catheter, which can slow down the blood flow in the target blood vessel or cause thrombosis in the target blood vessel, thereby completing vascular embolization or blood flow diversion.

[0003] The peripheral embolization coil system is usually used in the embolization of peripheral blood vessels to block or reduce the blood / lymph flow rate in the peripheral vascular system during the embolization operation. Because the diameter of peripheral blood vessels is large and the blood flow is large, it is difficult to achieve the ideal embolization effect by using the existing three-dimensional spherical or linear spiral embolization coils because they have hollow areas inside; in addition, because the coils are three-dimensional spherical or linear spiral, it is not convenient to stack the coils into a structure with good occlusion effect, and the embolization is often insufficient, and the blood vessels cannot be effectively embolized, which places high demands on the surgical operator.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The utility model aims to provide an embolic spring coil and a processing device thereof, which are used to solve the technical problems in the prior art that the spring coils have structural defects, poor embolization and plugging effects, and are inconvenient to be stacked into an occlusive structure.

[0006] In order to achieve the above-mentioned purpose, the embolic spring coil of the utility model provides the following technical solutions:

[0007] An embolic spring coil comprises a plurality of spaced-apart transverse portions and a plurality of spaced-apart longitudinal portions, wherein both the transverse portions and the longitudinal portions are spirally wound spring structures, the transverse portions are staggered with the longitudinal portions, and the axes of the transverse portions are perpendicular to the axes of the longitudinal portions.

[0008] As a further optimized technical solution, the length of each of the transverse portions differs from the number of spiral windings of each of the longitudinal portions by no more than 2.

[0009] As a further optimized technical solution, the length of each of the transverse portions is the same as the diameter of each of the longitudinal portions.

[0010] As a further optimized technical solution, the number of spiral turns of each of the transverse portions and each of the longitudinal portions is no more than 4.

[0011] The utility model also provides a technical solution for a processing device for an embolic spring coil.

[0012] A processing device for an embolic spring coil comprises a winding rod, on which are provided a plurality of winding columns spaced apart along the axial direction of the winding rod, wherein the winding columns are perpendicular to the axial direction of the winding rod.

[0013] As a further optimized technical solution, the winding columns are arranged evenly spaced apart on the winding rod.

[0014] As a further optimized technical solution, the lengths of all the winding poles are the same.

[0015] As a further optimized technical solution, a positioning ring is fixedly connected to one side of the winding rod on the winding column. The positioning ring is coaxially arranged with the winding rod. The diameter of the positioning ring is larger than the winding column and is used to clamp the winding rod extended into the processing mold in the mold hole.

[0016] As a further optimized technical solution, stop structures are respectively provided on the outer sides of the two outermost winding columns for fixing the two ends of the spring coil.

[0017] As a further optimized technical solution, the stop structure is a stop rod fixedly connected to the winding rod, the axial direction of the stop rod is perpendicular to the axial direction of the winding column, and the length of the stop rod is close to the diameter of the winding rod.

[0018] Beneficial effects of embolic spring coils: The spring coils in the utility model have longitudinal and transverse parts that are staggered with each other, so that when filling, the spring coils can be repeatedly overlapped, and the transverse and longitudinal parts are hooked together to form a more stable filling tissue. Compared with tubular spring coils and spherical spring coils, this tissue does not have a hollow area, thereby achieving a better occlusion effect.

[0019] Beneficial effects of the processing device for embolic spring coils: by setting a winding rod and a winding column, the winding rod is used to wind the longitudinal part, and the winding column is used to wind the transverse part. In this way, when processing the embolic spring coil, the transverse part and the longitudinal part arranged alternately can be wound on the device, thereby improving the convenience of processing the embolic spring coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0021] Figure 1 This is a schematic diagram of the overall structure of an embolic spring coil according to an embodiment of the utility model;

[0022] Figure 2This is a schematic diagram of the embolic spring coil in use according to one embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the overall structure of a processing device for an embolic spring coil according to an embodiment of the utility model;

[0024] Figure 4 The figure is a schematic diagram of the processing of an embolic spring coil according to an embodiment of the utility model.

[0025] In the figure: 1, transverse part; 2, longitudinal part; 3, winding rod; 4, winding column; 5, positioning ring; 6, stop structure; 7, blood vessel. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0027] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0029] The utility model provides an embolic spring coil, which has staggered transverse parts and longitudinal parts, and the spiral windings of the transverse parts and the longitudinal parts are relatively low, so that the spring coil has no hollow area. During the surgical filling process, the transverse parts and the longitudinal parts are repeatedly stacked to form a stable embolic structure with a better occlusion effect.

[0030] like Figure 1As shown, the embolic spring coil has a plurality of spaced transverse portions 1 and a plurality of spaced longitudinal portions 2, both of which are spring structures wound by spirally winding memory alloy wire. The transverse portions 1 and the longitudinal portions 2 are arranged alternately, and it should be noted that "interlaced" means that one transverse portion 1 is connected to one longitudinal portion 2 in such a circular arrangement, and the axis of the transverse portion 1 is perpendicular to the axis of the longitudinal portion 2.

[0031] In the utility model, the number of spiral turns of each transverse part 1 or longitudinal part 2 is not greater than 4 (for example, 1 turn, 2 turns, 3 turns, 4 turns), so that neither the transverse part 1 nor the longitudinal part 2 will form a stable tubular structure, and thus there is no hollow area, thereby ensuring a better occlusion effect during the surgical stacking process.

[0032] The length of each transverse portion 1 differs from the number of spiral windings of each longitudinal portion 2 by no more than 2. That is, the number of spiral windings of the transverse portion 1 and the longitudinal portion 2 may be the same, or differ by 1 or 2. In this way, the structures of the transverse portion 1 and the longitudinal portion 2 are not much different, so that they can interact and tie with each other during the stacking process.

[0033] In addition, the length of each transverse portion 1 is the same as the diameter of each longitudinal portion 2. There is no difference in diameter between the transverse portion 1 and the longitudinal portion 2, so that the stacked tissues overlap evenly, which is conducive to reducing the gaps generated by the different diameters of the transverse portion 1 and the longitudinal portion 2 during the stacking process, thereby ensuring the occlusion effect.

[0034] When using, Figure 2 As shown, the embolic spring coil is pushed into the blood vessel 7, and then squeezed and curled, so that the transverse portion 1 and the longitudinal portion 2 are stacked and tied to each other, thereby forming an embolic structure with strong stability.

[0035] The utility model also provides a processing device for an embolic spring coil, which facilitates the processing of the spring coil by evenly arranging winding columns on a winding rod.

[0036] Specific as Figure 3 As shown, a processing device for an embolic spring coil has a winding rod 3, which is used to wind the longitudinal portion 2. The winding rod 3 has a plurality of winding columns 4 arranged at intervals along the axial direction of the winding rod 3, and the winding columns 4 are used to wind the transverse portion 1. The winding columns 4 are arranged perpendicular to the axial direction of the winding rod 3, so as to facilitate the winding of the transverse portion 1 and the longitudinal portion 2 whose axes are perpendicular to each other.

[0037] In order to ensure that the transverse portion 1 is evenly connected to the longitudinal portion 2, the winding columns 4 are evenly spaced and arranged on the winding rod 3. In this embodiment, in order to facilitate the processing of the device, the lengths of all the winding columns 4 are processed to be the same.

[0038] After all the spring coils are wound around the winding rod 3 and the winding column 4, the spring coils need to be heat treated and shaped. The shaping process specifically includes placing the spring coils into the mold for heating, heat preservation and cooling, so that the memory alloy reaches the desired shape. In order to facilitate the fixing of the winding rod 3 in the mold, a positioning collar 5 is fixedly connected to the winding rod 3. The positioning collar 5 is arranged on one side of the winding rod 3 where all the winding columns 4 are arranged. The positioning collar 5 is coaxially arranged with the winding rod 3 and has a diameter larger than the winding rod 3, so that the winding rod 3 inserted into the processing mold can be conveniently clamped in the mold hole. In this embodiment, a coating is also provided on the outside of the positioning collar 5, and the specific model of the device can be printed on the coating, thereby facilitating the use of the device.

[0039] In order to prevent the spring coil from loosening during the shaping process, stop structures 6 are respectively provided on the outer sides of the two outermost winding columns 4 to fix the two ends of the spring coil. In this embodiment, the stop structure 6 is a stop rod fixedly connected to the winding rod 3, the axial direction of the stop rod is perpendicular to the axial direction of the winding column 4, and the middle part of the stop rod is fixedly connected to the winding rod 3, so that when the spring coil is wound, the two ends are wound on the two ends of the stop rod and approach the side close to the winding rod 3, so that the memory alloy wire can be clamped between the winding rod 3 and the stop rod, ensuring the stability of the spring coil position fixation, and then ensuring the effect of shape shaping. In addition, the larger the length of the stop rod, the more firmly the end of the spring coil is wound, otherwise it is easy to loosen, but the larger the length, the more difficult it is to wind, so the length of the stop rod is preferably close to the diameter of the winding rod 3.

[0040] Specifically when processing spring coils, Figure 4 As shown, the spring coil is continuously wound on the winding rod 3 and the winding column 4 to form a set shape, and the two ends of the memory alloy wire are wound and fixed on the stop rod. Then the device is placed in the mold, and the positioning ring 5 is clamped in the mold hole to shape the wound spring coil. After shaping, the spring coil is removed from the device and the special-shaped parts formed on the stop rod at both ends are cut off.

[0041] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. An embolic coil, characterized in that: The embolic spring coil comprises a plurality of spaced-apart transverse portions (1) and a plurality of spaced-apart longitudinal portions (2), wherein both the transverse portions (1) and the longitudinal portions (2) are spirally wound spring structures, the transverse portions (1) and the longitudinal portions (2) are arranged in an alternating manner, and the axis of the transverse portion (1) is perpendicular to the axis of the longitudinal portion (2).

2. The embolic coil according to claim 1, characterized in that: The length of each of the transverse portions (1) differs from the number of spiral windings of each of the longitudinal portions (2) by no more than 2.

3. The embolic coil according to claim 1 or 2, characterized in that: The length of each of the transverse portions (1) is the same as the diameter of each of the longitudinal portions (2).

4. The embolic coil according to claim 3, characterized in that: The number of spiral turns of each of the transverse portions (1) and each of the longitudinal portions (2) is no more than 4.

5. A processing device for an embolic spring coil according to any one of claims 1 to 4, characterized in that: The processing device comprises a winding rod (3), on which are provided a plurality of winding columns (4) spaced apart along the axial direction of the winding rod (3), wherein the winding columns (4) are perpendicular to the axial direction of the winding rod (3).

6. The processing device for embolic spring coil according to claim 5, characterized in that: The winding columns (4) are arranged on the winding rod (3) at even intervals.

7. The processing device for embolic spring coil according to claim 5, characterized in that: All the winding columns (4) have the same length.

8. The processing device for embolic spring coil according to claim 7, characterized in that: A positioning collar (5) is fixedly connected to one side of the winding rod (3) on the winding column (4); the positioning collar (5) is coaxially arranged with the winding rod (3); the diameter of the positioning collar (5) is larger than that of the winding rod (3) and is used to clamp the winding rod (3) inserted into the processing mold into the mold hole.

9. The processing device for embolic spring coil according to claim 8, characterized in that: The outer sides of the two outermost winding columns (4) are respectively provided with stop structures (6) for fixing the two ends of the spring coil.

10. The processing device for embolic spring coil according to claim 9, characterized in that: The stop structure (6) is a stop rod fixedly connected to the winding rod (3), the axial direction of the stop rod is perpendicular to the axial direction of the winding column (4), and the length of the stop rod is close to the diameter of the winding rod (3).

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