Embolism spring ring structure

Abstract

The utility model relates to an embolism spring ring structure which comprises a conveying rod and a spring, two connecting pieces are installed at the end, facing the conveying rod, of the spring, inserting grooves are formed in the connecting pieces, a push rod is inserted into the conveying rod, a guide rod is installed at the end, facing the spring, of the push rod, and an air bag is installed on the outer surface of the guide rod through an inflation and deflation mechanism. Movable plates are connected to the upper side and the lower side of the outer surface of the air bag, and inserting blocks matched with the inserting grooves are arranged on the outer surfaces of the movable plates. The inside of the air bag is inflated and deflated through the inflation and deflation mechanism, so that the insertion block can be driven to ascend and descend, when the insertion block is inserted into the insertion groove, the spring can be fixed, the situation that the spring loosens and shifts in the operation process is avoided, potential safety hazards are eradicated, and when the insertion block is pulled out of the insertion groove, fixation of the spring can be relieved. And the materials are pushed into the conveying rod through the push rod to complete separation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an embolization spring coil structure. Background Technology

[0002] Embolization coils are interventional medical devices that can be inserted into the vascular system via a catheter. By forming a basket-like structure, they can slow down or block blood flow within an aneurysm, promote thrombus formation, and occlude the aneurysm to achieve hemostasis and treatment. They are commonly used for the embolization treatment of peripheral aneurysms, intracranial aneurysms, arteriovenous malformations, and arteriovenous fistulas.

[0003] Chinese patent CN221600038U discloses a plug spring coil. The first and second connecting parts are pressed and fixed to the inner wall of the conveyor rod by an elastic release member. When the operator pulls the pull rope, the elastic release member moves away from the outlet end of the conveyor rod, thereby separating the elastic release member from the first and second connecting parts. Without the compression of the elastic release member, the first and second connecting parts cannot be fixed to the inner wall of the conveyor rod, thus separating the spring from the conveyor rod.

[0004] The aforementioned patent relies solely on the frictional force applied by the elastic release component to the first and second connecting components for fixation, resulting in poor fixation. This can easily lead to the springs loosening and shifting during surgery, posing a safety hazard. Utility Model Content

[0005] The purpose of this invention is to provide a plug spring coil structure that effectively solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] An embolized spring coil structure includes a conveying rod and a spring. Two connectors are installed on the end of the spring facing the conveying rod. The connectors have slots inside. A push rod is inserted into the conveying rod. A guide rod is installed on the end of the push rod facing the spring. An air bladder is installed on the outer surface of the guide rod through an inflation / deflation mechanism. Movable plates are connected to the upper and lower sides of the outer surface of the air bladder. The outer surface of the movable plates is provided with inserts that match the slots.

[0008] As can be seen, the inflation and deflation mechanism inflates and deflates the airbag, thereby driving the insertion block to rise and fall. When the insertion block is inserted into the slot, the spring can be fixed to prevent the spring from loosening or shifting during the operation, thus eliminating safety hazards. When the insertion block is pulled out of the slot, the spring can be released, and the insertion block can be pushed out of the delivery rod to complete the separation.

[0009] Furthermore, the inflation / deflation mechanism includes a tube body located outside the push rod, a rod body inserted inside the tube body, a piston located at the end of the rod body inside the tube body, and an air tube connected to the outer surface of the tube body, with the end of the air tube communicating with the interior of the airbag.

[0010] Furthermore, a guide rod is connected to the lower surface of the movable plate, and a guide hole matching the guide rod is opened on the outer surface of the guide rod.

[0011] Furthermore, the outer surface of the rod is provided with external threads, and the rod is inserted into the inside of the tube and connected to it by the threads.

[0012] Furthermore, a knob is installed at the end of the rod away from the piston, and the outer surface of the knob is textured with anti-slip grooves.

[0013] Furthermore, the tube body and the trachea are detachably connected.

[0014] Furthermore, the push rod and guide rod have a common through hole inside, through which the end of the air tube passes and extends to the inside of the airbag.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0016] This invention uses an inflation / deflation mechanism to inflate and deflate the airbag, thereby driving the insertion block to rise and fall. When the insertion block is inserted into the slot, the spring can be fixed to prevent the spring from loosening or shifting during the operation, thus eliminating safety hazards. When the insertion block is pulled out of the slot, the spring can be released, and the insertion block can be pushed out of the delivery rod by a push rod to complete the separation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a front view cross-sectional structural diagram of the present invention;

[0020] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B;

[0022] Figure 6 This is a schematic diagram of the guide rod in this utility model.

[0023] In the diagram: 100, conveying rod; 101, spring; 102, connector; 103, slot; 104, push rod; 105, guide rod; 106, airbag; 107, movable plate; 108, insert block; 200, inflation / deflation mechanism; 201, tube body; 202, rod body; 203, piston; 204, air pipe; 300, guide rod; 301, guide hole; 400, knob. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0026] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0027] Please see Figures 1-6The present invention provides a plug spring coil structure, including a conveying rod 100 and a spring 101. Two connectors 102 are installed on the end of the spring 101 facing the conveying rod 100. The connectors 102 have slots 103 inside. A push rod 104 is inserted into the conveying rod 100. A guide rod 105 is installed on the end of the push rod 104 facing the spring 101. An air bag 106 is installed on the outer surface of the guide rod 105 through an inflation / deflation mechanism 200. Movable plates 107 are connected to the upper and lower sides of the outer surface of the air bag 106. The outer surface of the movable plate 107 is provided with a plug 108 that matches the slot 103.

[0028] In use, first insert the push rod 104 into the delivery rod 100 and extend the guide rod 105 from the end of the delivery rod 100. Then, align the two slots 103 with the two inserts 108 respectively. Inflate the airbag 106 through the inflation / deflation mechanism 200, causing it to move the movable plate 107 toward the connector 102, so that the inserts 108 are inserted into the slots 103. Since the spring 101 has the ability to deform, in order to prevent the inserts 108 from falling out of the slots 103 during the operation, the guide rod 105 can be pulled back into the delivery rod 100. The connector 102 is limited by the inner wall of the delivery rod 100, thereby ensuring the stability of the spring 101 during the operation. When the airbag 106 is deflated by the inflation / deflation mechanism 200, the airbag 106 contracts and pulls the inserts 108 out of the slots 103. Then, push the push rod 104 to push them out of the delivery rod 100 to complete the separation.

[0029] Preferably, the inflation / deflation mechanism 200 includes a tube 201 disposed outside the push rod 104, a rod 202 inserted inside the tube 201, a piston 203 disposed at the end of the rod 202 located inside the tube 201, and an air tube 204 connected to the outer surface of the tube 201, the end of the air tube 204 communicating with the interior of the airbag 106.

[0030] When the piston 203 moves inside the tube 201 via the rod 202, the airbag 106 can be inflated or deflated via the air tube 204.

[0031] Preferably, a guide rod 300 is connected to the lower surface of the movable plate 107, and a guide hole 301 matching the guide rod 300 is opened on the outer surface of the guide rod 105.

[0032] Since the end of the guide rod 300 is inserted into the guide hole 301, it can limit the movement of the movable plate 107, allowing it to rise and fall vertically under the expansion of the airbag 106, so that the insert block 108 can be accurately inserted into the slot 103.

[0033] Preferably, the outer surface of the rod 202 is provided with external threads, and the rod 202 is inserted into the inside of the tube 201 and connected to it by threads.

[0034] The piston 203 can be locked by means of a threaded connection, so that the airbag 106 can remain inflated during the operation.

[0035] Preferably, a knob 400 is installed at the end of the rod 202 away from the piston 203, and the outer surface of the knob 400 is provided with anti-slip texture.

[0036] The knob 400 makes it easy to rotate the rod 202 to drive the piston 203 to move inside the tube 201, and the anti-slip texture increases the friction between the hand and the body, reducing the chance of slipping.

[0037] Preferably, the tube body 201 and the trachea 204 are detachably connected.

[0038] The detachable connection makes it easy to replace if it is damaged.

[0039] Preferably, the push rod 104 and the guide rod 105 have a common through hole, and the end of the air tube 204 passes through the through hole and extends to the inside of the airbag 106.

[0040] By inserting the trachea 204 into the push rod 104, it can be hidden, improving aesthetics and reducing the possibility of the trachea 204 being damaged.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A plug spring coil structure, comprising a conveying rod (100) and a spring (101), wherein two connectors (102) are mounted on the end of the spring (101) facing the conveying rod (100), characterized in that: The connector (102) has a slot (103) inside, and a push rod (104) is inserted inside the conveying rod (100). A guide rod (105) is installed on the end of the push rod (104) facing the spring (101). An air bag (106) is installed on the outer surface of the guide rod (105) through the inflation / deflation mechanism (200). Movable plates (107) are connected to the upper and lower sides of the outer surface of the air bag (106). The outer surface of the movable plate (107) is provided with a plug (108) that matches the slot (103).

2. The embolization spring coil structure according to claim 1, characterized in that: The inflation / deflation mechanism (200) includes a tube (201) disposed outside the push rod (104), a rod (202) inserted inside the tube (201), a piston (203) disposed at the end of the rod (202) located inside the tube (201), and an air tube (204) connected to the outer surface of the tube (201), the end of the air tube (204) communicating with the interior of the airbag (106).

3. The embolization spring coil structure according to claim 1, characterized in that: The lower surface of the movable plate (107) is connected to a guide rod (300), and the outer surface of the guide rod (105) is provided with a guide hole (301) that matches the guide rod (300).

4. The embolization spring coil structure according to claim 2, characterized in that: The outer surface of the rod (202) is provided with external threads, and the rod (202) is inserted into the inside of the tube (201) and connected to it by threads.

5. The embolization spring coil structure according to claim 2, characterized in that: A knob (400) is installed at the end of the rod (202) away from the piston (203), and the outer surface of the knob (400) is provided with anti-slip texture.

6. The embolization spring coil structure according to claim 2, characterized in that: The tube body (201) and the air tube (204) are detachably connected.

7. The embolized spring coil structure according to claim 2, characterized in that: The push rod (104) and the guide rod (105) have a common through hole, and the end of the air tube (204) passes through the through hole and extends to the inside of the airbag (106).

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