Guiding and positioning device facilitating adjustment of medical guide wire

Abstract

The utility model relates to the technical field of guide wire positioning devices, in particular to a guiding and positioning device facilitating adjustment of a medical guide wire. The utility model relates to a medical guide wire positioning device which mainly aims at solving the problems that in the prior art, positioning is completed by screwing a threaded sleeve, manual operation screwing is needed in the positioning and positioning releasing process, the operation efficiency is easily affected, meanwhile, the operation stability is reduced after hand fatigue, and a medical guide wire can cause secondary injury to a treated part. According to the technical scheme, the device comprises a guide pipe part, a medical guide wire penetrates through an inner cavity channel of the guide pipe part, positioning assemblies are symmetrically arranged on the guide pipe part, each positioning assembly comprises a movable rod, the top end of each movable rod is arranged in an inclined state, and the wall body of the outer surface of the guide pipe part is sleeved with a movable sleeve. According to the positioning device, the guide pipe piece can be quickly positioned or released, the risk of screw slipping and loosening caused by conventional thread screwing positioning is avoided, and the positioning device is simple and easy to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of guidewire positioning devices, and in particular to a guide and positioning device that facilitates the adjustment of medical guidewires. Background Technology

[0002] Medical guidewires are important medical devices that play a vital role in the medical field, assisting in various types of surgical treatments to help doctors achieve their therapeutic goals. Medical guidewires are made from a variety of materials, including non-deformable metals (such as stainless steel or titanium alloys) and elastic materials (such as polyester or polycarbonate), making them flexible and easy to adjust. Nowadays, when using medical guidewires, a guiding and positioning device is inserted beforehand. These devices are mostly cylindrical and assist in the insertion of the guidewire into the patient's body, facilitating subsequent treatment.

[0003] However, currently, some positioning is achieved by twisting the threaded sleeve. Since the positioning and unpositioning process requires manual operation, it can easily affect the efficiency of the operation. At the same time, hand fatigue reduces the stability of the operation and may also cause secondary damage to the treatment site by the medical guidewire. In view of this, we propose a guide and positioning device that is easy to adjust the medical guidewire. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a guiding and positioning device for medical guidewires that is easy to adjust.

[0005] The technical solution of this utility model is as follows: A guiding and positioning device for easy adjustment of medical guidewires, comprising a guide tube, in which a medical guidewire passes through the inner cavity of the guide tube. Positioning components are symmetrically arranged on the guide tube, each positioning component including a movable rod with its top end inclined. A movable sleeve is fitted onto the outer surface wall of the guide tube, and a movable cavity is formed within the movable sleeve. Multiple guiding components for assisting the movable sleeve in resetting are arranged within these movable cavities. A double-groove is formed on the outer surface wall of the guide tube, and a locking component is installed within the double-groove. The locking component includes a movable plate, with a pull rod and a locking block connected to the top wall of the movable plate, and a second spring connected to the bottom wall of the movable plate.

[0006] Preferably, the top and bottom walls of the guide tube are symmetrically provided with movable openings, and the bottom end of the movable rod passes through the movable opening and is inserted into the guide tube.

[0007] Preferably, a positioning clamp is installed at the bottom end of the movable rod, and a first spring is connected to the top wall of the positioning clamp. The ends of the two first springs away from the positioning clamp are connected to the inner surface wall of the guide tube.

[0008] Preferably, the positioning clamp is located above the medical guide wire, and an arc-shaped groove is formed on the inner surface wall of the positioning clamp, the arc-shaped groove being adapted to the outer surface size of the guide tube.

[0009] Preferably, two second springs are disposed in the double-mouth groove, and the bottom end of the second spring is connected to the bottom wall of the double-mouth groove.

[0010] Preferably, the locking block and the pull rod are symmetrically arranged on the top wall of the movable plate, and the pull rod is longer than the locking block.

[0011] Preferably, the guide assembly includes a guide rod, one end of which is connected to an anti-detachment block, and a third spring is connected to the side wall of the anti-detachment block, with the end of the third spring away from the anti-detachment block connected to the inner wall of the movable cavity.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] This invention uses a movable sleeve to move, causing the movable rod to be squeezed by the sleeve. The positioning clamp is used to hold and position the medical guide wire that passes through the guide tube. The operation is simple and convenient. At the same time, under the elastic action of the second spring, the locking block can be placed in the positioning groove on the inner surface of the movable sleeve to limit the position of the movable sleeve. The operation is simple and quick. Conversely, pressing the pull rod lowers the movable plate, causing the locking block to disengage from the positioning groove, releasing the restriction and positioning, and avoiding the risk of loosening and reducing the positioning effect caused by conventional screw-on positioning. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a guide and positioning device for easy adjustment of medical guidewires;

[0015] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure from a neutral view;

[0016] Figure 3 yes Figure 1 A three-dimensional structural diagram of the positioning component;

[0017] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the locking assembly.

[0018] Reference numerals: 1. Guide tube; 2. Medical guide wire; 3. Positioning assembly; 31. Movable rod; 32. Positioning clamp; 33. First spring; 4. Movable sleeve; 5. Locking assembly; 51. Movable plate; 52. Pull rod; 53. Locking block; 54. Second spring; 6. Guide assembly; 61. Guide rod; 62. Anti-dislodgement block; 63. Third spring. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] like Figures 1 to 4 As shown, this utility model proposes a guiding and positioning device for easy adjustment of a medical guidewire, including a guide tube 1 and a medical guidewire 2. The medical guidewire 2 passes through the inner cavity of the guide tube 1, and the guide tube 1 guides the medical guidewire 2. Two sets of positioning components 3 are symmetrically arranged at movable openings symmetrically opened on the top and bottom walls of the guide tube 1. The positioning component 3 includes a movable rod 31, a positioning clamp 32, and a first spring 33. The positioning clamp 32 is located inside the guide tube 1. The bottom end of the movable rod 31 passes through the movable opening on the outer wall of the guide tube 1 and is fixedly connected to the top wall of the positioning clamp 32 located in the inner cavity of the guide tube 1. The arc-shaped groove opened on the bottom wall of the positioning clamp 32 is adapted to the outer surface wall of the medical guidewire 2, so that the guide tube 1 can be clamped and positioned by the positioning clamp 32 under the guidance of the movable rod 31. The two first springs 31 are also included. The two first springs 33 are symmetrically arranged on the top wall of the positioning chuck 32. The bottom ends of the two first springs 33 are connected to the top wall of the positioning chuck 32 and the bottom ends are connected to the inner surface wall of the guide tube 1 to assist the movable rod 31 in resetting. The top end of the movable rod 31 passes through the movable opening on the guide tube 1 and is set in an inclined state. The movable sleeve 4 is fitted on the outer surface wall of the guide tube 1. The inclined surface of the movable rod 31 is set towards the movable sleeve 4, which is conducive to the movable rod 31 descending by the inclined surface during the movement of the movable sleeve 4. The guide tube 1 is divided into two parts: a small diameter guide structure and a large diameter guide structure. Both sides of the large diameter guide structure of the guide tube 1 are raised. The diameter of the raised part of the large diameter guide structure of the guide tube 1 is larger than that of the middle part, which is used to prevent the movable sleeve 4 from disengaging from the large diameter guide structure of the guide tube 1 in the moving state.

[0022] Furthermore, multiple sets of guide components 6 are respectively disposed in multiple movable cavities opened on the side wall of the movable sleeve 4. The guide component 6 includes a guide rod 61, an anti-detachment block 62, and a third spring 63. The anti-detachment block 62 and the third spring 63 are disposed in the movable cavities corresponding to their positions. The side wall of the anti-detachment block 62 is fixedly connected to one end of the guide rod 61, and the other end of the guide rod 61 passes through the opening of the movable cavity and is connected to the inner side wall of the large-diameter guide structure protrusion of the movable sleeve 4. This is used to cooperate with the anti-detachment block 62 to guide the movable sleeve 4 in the moving state. At the same time, the diameter of the anti-detachment block 62 is... The diameter is larger than that at the opening of the movable cavity to prevent the guide rod 61 from detaching from the movable sleeve 4 during its movement, thus affecting the subsequent reset of the movable sleeve 4. The third spring 63 is sleeved on the guide rod 61. One end of the third spring 63 is connected to the side wall of the anti-detachment block 62, and the other end is connected to the inner wall of the movable cavity to assist the movable sleeve 4 in resetting. Since the three sets of guide components 6 are arranged in a circular array around the outer arc surface of the guide tube 1, the movable sleeve 4 is prevented from moving during the guiding process, thus preventing it from affecting the subsequent positioning of the movable sleeve 4.

[0023] Furthermore, the locking assembly 5 is installed in a double-slot on the top wall of the guide tube 1. The locking assembly 5 includes a movable plate 51, a pull rod 52, a locking block 53, and a second spring 54. The movable plate 51 and the second spring 54 are set in the double-slot. The top ends of the two second springs 54 are connected to the bottom wall of the movable plate 51, and the bottom ends of the two second springs 54 are connected to the bottom wall of the double-slot to assist the movable plate 51 in moving up and down. The bottom ends of the pull rod 52 and the locking block 53 are respectively inserted into the two slots of the double-slot and fixedly connected to the top wall of the movable plate 51. The pull rod 52 is longer than the locking block 53. A positioning groove is provided on the inner surface wall of the movable sleeve 4. The locking block 53 is adapted to the positioning groove, which is conducive to restricting the position of the movable sleeve 4 after it is pulled. The pull rod 52 makes it convenient for the user to operate the locking block 53 to descend and release the restriction.

[0024] In this embodiment, the medical guidewire 2 passes through the inner cavity of the guide tube 1, and the guide tube 1 guides the medical guidewire 2. When positioning of the medical guidewire 2 is required, the movable sleeve 4 is pulled to move, so that the movable sleeve 4 moves under the guidance of the guide rod 61. At the same time, during the movement, the inclined surface at the top of the movable rod 31 is squeezed, so that the movable rod 31 pushes the positioning clamp 32 down. The arc-shaped groove opened on the bottom wall of the positioning clamp 32 clamps and positions the guide tube 1. Due to the setting of the third spring 63, the movable sleeve 4 can automatically reset. No manual operation is required. As the movable sleeve 4 moves toward the locking assembly 5, pressing the pull rod 52 during the movement pushes the movable plate 51, causing the locking block 53 to descend. When the positioning groove moves to the position corresponding to one of the slots of the double slot, the pull rod 52 is released. Under the elastic release action of the second spring 54, the locking block 53 is pushed to lock in the positioning groove, thus achieving the purpose of positioning the movable sleeve 4. Conversely, pressing the pull rod 52 will cause the movable plate 51 to drive the locking block 53 to disengage from the positioning groove and contact the restriction. It is simple and easy to operate.

[0025] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A guiding positioning device for facilitating adjustment of a medical guide wire, comprising a guide tube (1) through which a medical guide wire (2) is threaded in the lumen of the guide tube (1), characterized in that: The positioning assembly (3) is symmetrically arranged on the guide pipe (1), the positioning assembly (3) comprises a movable rod (31), the top end of the movable rod (31) is arranged in an inclined state, the outer surface wall of the guide pipe (1) is sleeved with a movable sleeve (4), the movable sleeve (4) is provided with a movable cavity, a plurality of guide assemblies (6) for resetting the movable sleeve (4) are arranged in the movable cavity, a double-port groove is formed in the outer surface wall of the guide pipe (1), and a locking assembly (5) is installed in the double-port groove; the locking assembly (5) comprises a movable plate (51), the top wall of the movable plate (51) is connected with a pull rod (52) and a clamping block (53), and the bottom wall of the movable plate (51) is connected with a second spring (54).

2. The guide positioning device for facilitating adjustment of a medical guide wire according to claim 1, wherein The top and bottom walls of the guide pipe (1) are symmetrically provided with movable ports, and the bottom end of the movable rod (31) penetrates the movable port and is inserted into the guide pipe (1).

3. The guide positioning device for facilitating adjustment of a medical guide wire according to claim 1, wherein The bottom end of the movable rod (31) is provided with a positioning chuck (32), the top wall of the positioning chuck (32) is connected with a first spring (33), and the ends of the two first springs (33) away from the positioning chuck (32) are connected with the inner surface wall of the guide pipe (1).

4. The guide positioning device for facilitating adjustment of a medical guide wire according to claim 3, wherein The positioning chuck (32) is located above the medical guide wire (2), an arc-shaped groove is formed in the inner surface wall of the positioning chuck (32), and the arc-shaped groove is matched with the outer surface size of the guide pipe (1).

5. The guide positioning device for facilitating adjustment of a medical guide wire according to claim 1, wherein The two second springs (54) are arranged in the double-port groove, and the bottom end of the second spring (54) is connected with the bottom groove wall of the double-port groove.

6. The guide positioning device for facilitating adjustment of a medical guide wire according to claim 1, wherein The clamping block (53) and the pull rod (52) are symmetrically arranged on the top wall of the movable plate (51), and the pull rod (52) is longer than the clamping block (53).

7. The guide positioning device for facilitating adjustment of a medical guide wire according to claim 1, wherein The guide assembly (6) comprises a guide rod (61), one end of the guide rod (61) is connected with an anti-dropping block (62), the side wall of the anti-dropping block (62) is connected with a third spring (63), and one end of the third spring (63) away from the anti-dropping block (62) is connected with the inner wall of the movable cavity.

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