CN218512216U - Test device for detecting guide wire breakage - Google Patents

Abstract

The utility model provides a test device for detecting guide wire breakage, which comprises a guide wire shaft connecting column, wherein the guide wire shaft connecting column can be driven to rotate, and the end part of the guide wire shaft connecting column is provided with guide wire shaft connecting holes which are coaxially arranged; the wire guide shaft comprises a connecting end and a free end, and the connecting end is in adaptive connection with the wire guide shaft connecting hole; the guide wire fixing structure is arranged on the guide wire shaft or connected to the guide wire shaft, can fix the guide wire, leads the guide wire out along the surface of the guide wire shaft or out from the surface close to the guide wire shaft, and leads out the guide wire in a direction which is not vertical to the axial direction of the guide wire shaft; wherein a suspension space is formed below the guide wire shaft. The utility model provides a test device that detection seal wire is cracked utilizes seal wire fixed knot to construct the structural design, can make the seal wire draw forth the back from seal wire fixed knot and form the natural inclination with the seal wire shaft to when the seal wire shaft at the rotation in-process, the seal wire can be the spiral winding and epaxial at the seal wire, no longer need drive whole seal wire shaft at axial displacement.

Description

Test device for detecting guide wire breakage

Technical Field

The utility model relates to an intervention formula medical instrument field especially relates to a test device that detects seal wire and break.

Background

The guide wire is a common instrument in the field of interventional medical treatment, is the key to successful interventional operation, and has quite large use amount and wide application range. The guide wire is mainly used for guiding the instrument into blood, urinary system and digestive system, helping the instrument selectively enter tiny blood vessel branches or other lesion lacunae, and is an important accessory for replacing the related instrument in operation.

In the interventional treatment process of the guide wire, the interventional path is usually a bending structure path, such as a turning structure path, a turning structure path and the like, so that strict requirements on the flexibility of the guide wire are provided, and the bending and cracking resistance of the guide wire is generally required to be tested.

The bend damage resistance test method in the guide wire performance test standard is to repeatedly subject the guide wire to reverse bending and straightening, and then to check for damage and coating spalling. As the standard only specifies the carrier material and the bending shape of the guide wire and makes requirements, and does not specify automation or manual operation, and the guide wire has various specifications and sizes, the device has poor controllability and operability and fussy and uniform operation during product inspection.

When the bending and cracking resistance of the guide wire is tested in a manual mode, the situation that the bent parts are consistent every time cannot be easily guaranteed during manual bending, the situation that the bent angles are consistent every time cannot be avoided, operation is also controllable, and repeatability and accuracy of tests are greatly reduced.

When the bending rupture resistance of the guide wire is tested by adopting the testing device, the adopted product structure is complex, for example, the full-automatic video microscopic guide wire rupture test detection system disclosed in CN215727739U is provided with two motors, wherein one step motor II 9 drives the detection shaft 8 to rotate, and the other step motor I3 drives the positioning slide block 5 to slide along the horizontal direction, so that the guide wire is prevented from being wound at the same position when being wound.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve provides a detect cracked test device of seal wire, through making the seal wire draw forth the natural angle slope of formation after being fixed to seal wire locating hole structure to make seal wire shaft pivoted in-process, the seal wire can spiral winding at the seal wire epaxial.

In order to solve the technical problem, the utility model provides a detect cracked test device of seal wire, include:

the yarn guide shaft connecting column can be driven to rotate, and the end part of the yarn guide shaft connecting column is provided with yarn guide shaft connecting holes which are coaxially arranged;

the wire guide shaft comprises a connecting end and a free end, and the connecting end is in adaptive connection with the wire guide shaft connecting hole;

the guide wire fixing structure is arranged on the guide wire shaft or connected to the guide wire shaft, can fix the guide wire, leads the guide wire out along the surface of the guide wire shaft or out from the surface close to the guide wire shaft, and leads out the guide wire in a direction which is not vertical to the axial direction of the guide wire shaft, so that the guide wire can be automatically wound on the guide wire shaft by an inclination angle formed between the guide wire and the guide wire shaft in the rotating process of the guide wire shaft;

wherein a hanging space is formed below the guide wire shaft.

The guide wire fixing structure is a guide wire connecting hole arranged on the guide wire shaft, so that a guide wire can be arranged in the guide wire connecting hole; the guide wire is fixed by a fastening structure.

The fastening structure comprises a screw hole arranged on one side wall of the guide wire connecting hole and a fastening screw arranged in the screw hole.

The other side wall of the guide wire connecting hole is provided with a friction surface or a plane.

And an inclined guide fixing groove is formed in the other side wall of the guide wire connecting hole, and the depth of the guide fixing groove is smaller than the diameter of the guide wire, so that part of the guide wire still protrudes out of the other side wall after the guide wire is connected to the guide fixing groove, and the guide wire can be tightly pressed by the first fastening screw.

The guide wire connecting holes are arranged at an acute angle relative to the axis of the guide wire shaft.

The guide wire fixing structure is a fixing sleeve connected to the guide wire shaft, and a guide wire connecting hole is formed in the fixing sleeve.

The guide wire connecting hole is parallel to or forms an obtuse angle with the axis of the guide wire shaft.

The guide wire fixing structure is arranged on a notch of the free end of the guide wire shaft and connected with a wedge block of the notch, and the wedge block is connected with the notch to form a space for fixing the guide wire.

The notch is arranged in a manner of inclining to the axis of the wire guide shaft, and correspondingly, the wedge block is in a shape matched with the notch.

The guide wire shaft with the guide wire shaft connecting hole adopts detachable connection to the guide wire shaft test seal wire of different diameters is convenient for change.

The silk guide device also comprises a driving shaft which is fixedly connected with the silk guide shaft connecting column and is coaxially arranged with the silk guide shaft.

The driving shaft is connected with the driving motor and the speed reducer.

The driving motor is a forward and reverse rotation driving motor, or the speed reducer is a bidirectional rotation output speed reducer.

The driving shaft, the driving motor and the speed reducer are all accommodated in the box body, a shaft hole allowing the driving shaft to horizontally pass through is correspondingly formed in the side wall of the box body, and the driving shaft protrudes out of the side wall of the box body.

The controller is used for controlling the rotation of the motor and the output of the speed reducer; the controller is provided with a Bluetooth module;

the box body is provided with a display and an operating button, the display is used for displaying the working state of the motor, the rotating speed and the number of revolutions of the yarn guide shaft, and the operating button is triggered to send an operating instruction to the driving motor or the speed reducer; the display is a touchable control screen.

Implement the utility model discloses, following beneficial effect has:

the utility model provides a test device that detection seal wire is cracked utilizes the structural design of seal wire connecting hole, can make the seal wire draw forth the back from the seal wire connecting hole and form the natural inclination with the guide wire axle to when the guide wire axle at the rotation in-process, the seal wire can be the spiral winding and epaxial at the guide wire, no longer need drive whole guide wire axle at axial displacement. In addition, automatic control is carried out through a mechanical structure, manual operation steps can be reduced, time and cost are saved, manual errors are avoided, and the accuracy of a detection result is guaranteed.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application and are not to be construed as limiting the application.

Fig. 1 is a schematic diagram of the overall structure of a test device for detecting guide wire breakage according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a connection column of a yarn guiding shaft and a connection of the yarn guiding shaft provided by the embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a schematic structural diagram of a testing apparatus provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a testing apparatus provided in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a testing apparatus provided in an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a testing apparatus provided in an embodiment of the present invention.

Reference numbers in the figures:

10-a silk guide shaft connecting column; 11-wire guide shaft connecting hole;

20-a guide wire shaft; 21-free end; 22-a connection end; 23-guide wire attachment holes; 24-a first fastening screw; 25-guide fixing groove; 26-fixing a sleeve; 27-a notch; 28-wedge block;

30-a drive shaft;

40-a box body;

50-guide wire.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, the present embodiment provides a test device for detecting guide wire breakage, which includes a box 40, a driving shaft 30, a speed reducer, a display, a guide wire shaft connecting post 10, a guide wire fixing structure, a guide wire shaft 20, and the like. Wherein seal wire fixed knot constructs and its and the combination design of seal wire axle 20 is the utility model discloses a main innovation point, seal wire fixed knot construct can be the seal wire connecting hole 23 that sets up on seal wire axle 20, also can be fixed cover 26 or voussoir 28 of connection on seal wire axle 20, or also can be other based on the utility model discloses technical concept's feasibility implementation mode satisfies "make the seal wire derive along seal wire axle 20 surface promptly, or derive from being close to seal wire axle 20 surface, and the direction of deriving is not perpendicular with the axial of seal wire axle 20", and form the space of dangling below seal wire axle 20, in order for seal wire 50 to dangle to arrange the use, thereby make seal wire axle 20 at the pivoted in-process, seal wire 50 can and the inclination that forms between the seal wire axle 20 and automatic winding is on seal wire axle 20. Those skilled in the art can make adaptive design and adjustment based on this technical idea.

The following is specifically set forth in connection with the above design:

as shown in fig. 1 to 3, the guide wire fixing structure is a guide wire attachment hole 23 provided on the guide wire shaft 20 so that the guide wire 50 can be fitted into the guide wire attachment hole 23. Through the design of the guide wire connecting hole 23 on the guide wire shaft 20, the guide wire 50 can form a natural inclination angle with the guide wire shaft 20 after being led out from the guide wire connecting hole 23 after being fastened in the guide wire connecting hole 23 by the first fastening screw 24, so that the guide wire can be spirally wound on the guide wire shaft in the rotating process of the guide wire shaft, and the whole guide wire shaft does not need to be driven to move in the axial direction.

As shown in fig. 4, the guide wire connection hole 23 may be obliquely arranged on the guide wire shaft 20 and arranged at an acute angle with respect to the axis of the guide wire shaft 20, after the guide wire 50 is arranged in the guide wire connection hole 23, the guide wire 50 is led out along the guide wire connection hole 23, the led-out direction forms an inclination angle with the guide wire shaft 20, and when the guide wire shaft 20 is rotated by the motor, the guide wire 50 is spirally wound on the guide wire shaft 20.

As shown in fig. 5 to 6, the guide wire fixing structure may also be a fixing sleeve 26 connected to the guide wire shaft 20, a guide wire connecting hole 23 is provided on the fixing sleeve, and the arrangement direction of the guide wire connecting hole 23 may be parallel to the guide wire shaft 20 as shown in fig. 5, or may be an obtuse angle with the guide wire shaft 20 as shown in fig. 6. Those skilled in the art will appreciate that the guidewire securing structure may be disposed at the free end 21 of the guidewire shaft 20 or may be disposed adjacent the fixed end 22 of the guidewire shaft 20, as desired for use.

As shown in fig. 7, the guide wire fixing structure may be a wedge 28 attached to a notch 27 of the free end 21 of the guide wire shaft 20, and a space for fixing the guide wire 50 is formed by connecting the wedge 28 to the notch 27. In particular, it is possible to arrange the notch 27 in an inclined arrangement, as shown in fig. 7, and correspondingly to arrange the wedge 28 in a shape adapted to the notch.

The utility model discloses a design on the silk guide shaft spliced pole 10 and the silk guide shaft connecting hole 11 of silk guide shaft 20 adaptation, can make silk guide shaft 20 dismantle from silk guide shaft spliced pole 10 conveniently, change the silk guide shaft 20 of different diameters according to the experimental needs of the seal wire of different diameters to can satisfy the experiment of the different intensity of same silk guide shaft and a plurality of different silk guide shafts.

The silk guide shaft connecting column 10 can be driven to rotate, and the center of the end part of the silk guide shaft connecting column 10 is provided with the silk guide shaft connecting hole 11 which is coaxially arranged, so that the silk guide shaft 20 can be driven to coaxially rotate by the rotation of the silk guide shaft connecting column 10, and the situation that the silk guide shaft 20 deflects or jumps is avoided;

the thread guide shaft 20 comprises a connecting end 22 and a free end 21, and the connecting end 22 is connected with the thread guide shaft connecting hole 11 in a matching way; the guide wire shaft 20 is also provided with a guide wire connecting hole 23, the guide wire connecting hole 23 is in a long strip shape and is positioned on the inner side of the connecting end 22, wherein the width of the guide wire connecting hole 23 is larger than the diameter of the guide wire, so that the guide wire 50 can be arranged in the guide wire connecting hole 23; a first fastening screw hole penetrating the guide wire shaft 20 is further provided on one side wall of the guide wire attachment hole 23, and is installed in the first fastening screw hole by a first fastening screw 24. To facilitate the mounting and dismounting of the first fastening screw 24, the first fastening screw 24 may be provided with a knob structured nut.

The length of the guide wire connecting hole 23 is larger than the diameter of the first fastening screw hole, so that after the guide wire 50 is fixed by the guide wire connecting hole 23, when the guide wire 50 is led out and wound on the guide wire shaft 20 outside the guide wire connecting hole 23, a natural inclination angle can be generated, and in the rotating process of the guide wire shaft 20, the guide wire 50 can be spirally wound on the guide wire shaft 20.

In this embodiment, it is optionally designed that, as shown in fig. 1 to 3, the other side wall of the guide wire attaching hole 23 is provided with a friction surface or a plane:

when a friction surface is adopted, the friction force between the guide wire 50 and the side wall of the guide wire connecting hole 23 is larger, the guide wire 50 is prevented from slipping from the guide wire connecting hole 23, the friction surface can be a granular friction surface or a corrugated friction surface, and a frosted surface can be usually adopted to avoid damage to the guide wire;

when the plane is adopted, the contact area between the guide wire 50 and the guide wire connecting hole 23 can be larger, so that the larger friction force is provided between the guide wire 50 and the guide wire connecting hole 23, and the guide wire 50 is prevented from slipping out of the guide wire connecting hole 23.

In this embodiment, it may also be designed that an inclined guide fixing groove 25 is provided on the other sidewall of the guide wire connecting hole 23, and the depth of the guide fixing groove 25 is smaller than the diameter of the guide wire, so that the guide wire still partially protrudes from the other sidewall after being connected to the guide fixing groove 25, and can be pressed by the first fastening screw 24. Because the guide fixing grooves 25 are obliquely arranged, the guide wires 50 are ensured to have uniformity after being fixed, the same spiral effect can be achieved for multiple tests of the same guide wire 50 and for multiple tests of different guide wires 50, and therefore a better reference value can be provided for the accuracy of the test. Generally, the guide fixing groove 25 is disposed in the guide wire attaching hole 23 in a maximally inclined manner, i.e., between two opposite corners of the guide wire attaching hole 23.

The guide wire shaft 20 is detachably connected with the guide wire shaft connecting hole 11, so that the test guide wires 50 can be conveniently tested by replacing the guide wire shafts 20 with different diameters. In order to ensure the coaxiality between the guide wire shaft 20 and the guide wire shaft connecting post 10, a conical surface structure can be arranged in the guide wire shaft connecting hole 11 to be connected and fixed with the guide wire shaft 20 in a guiding manner.

A second fastening screw hole (not shown in the figure, and can be designed by referring to the first fastening screw hole structure by those skilled in the art) is further formed in the side surface of the guide wire shaft connecting column 10, and the second fastening screw hole penetrates through the side wall of the guide wire shaft connecting column 10 and is communicated with the guide wire shaft connecting hole 11;

the second fastening screw is installed in the second fastening screw hole, and the front end of the second fastening screw abuts against the surface of the guide wire shaft, so that the guide wire shaft is fixed in the guide wire shaft connecting hole 11.

In this embodiment, it is optionally provided that the drive shaft 30 is fixedly connected to the guide wire shaft connection post 10 and is arranged coaxially with the guide wire shaft 20, so that the drive shaft 30 can drive the guide wire shaft 20 to rotate coaxially after rotating.

Drive shaft 30 and driving motor and retarder connection because driving motor, reduction gear etc. all can adopt conventional technique to realize the utility model discloses an among the technical scheme, do not improve the structure of driving motor, reduction gear, technical staff in the field can be according to actual need and use conventional technique can.

The driving motor is a forward and reverse rotation driving motor, or the speed reducer is a bidirectional rotation output speed reducer.

In this embodiment, it is optionally designed that the driving shaft 30, the driving motor and the speed reducer are all accommodated in the box body 40, and correspondingly, a shaft hole for allowing the driving shaft to horizontally pass through is provided on the sidewall of the box body 40, and the driving shaft 30 protrudes out of the sidewall of the box body 40;

a controller (not shown) for controlling the rotation of the motor and the output of the reducer; the controller is provided with a Bluetooth module, and can be remotely connected with a mobile phone, an IPAD and the like through the Bluetooth module to realize remote control;

correspondingly, the box 40 is provided with a display for displaying the working state of the motor, the rotating speed and the number of revolutions of the thread guide shaft, and an operating button for being triggered to send an operating instruction to the driving motor or the speed reducer. The operator can observe the working state of the motor and the rotating speed and the number of revolutions of the wire guide shaft according to the display; the display is a touchable control screen, so that an operator can manually touch the screen to operate on site or operate the screen in a contactless space manner.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (16)

1. A test device for detecting guidewire rupture, comprising:

the thread guide shaft connecting column (10) can be driven to rotate, and the end part of the thread guide shaft connecting column (10) is provided with thread guide shaft connecting holes (11) which are coaxially arranged;

the thread guide shaft (20) comprises a connecting end (22) and a free end (21), and the connecting end (22) is connected with the thread guide shaft connecting hole (11) in an adaptive mode;

the guide wire fixing structure is arranged on the guide wire shaft (20) or connected to the guide wire shaft (20), can fix the guide wire, leads the guide wire out along the surface of the guide wire shaft (20) or leads the guide wire out from the surface close to the guide wire shaft (20), and leads out the guide wire in a direction which is not vertical to the axial direction of the guide wire shaft (20), so that the guide wire (50) can be automatically wound on the guide wire shaft (20) by an inclination angle formed between the guide wire shaft (20) and the guide wire shaft (20) in the rotating process of the guide wire shaft (20);

wherein a suspension space is formed below the guide wire shaft (20).

2. The trial device of claim 1 for detecting guidewire breakage,

the guide wire fixing structure is a guide wire connecting hole (23) arranged on the guide wire shaft (20), so that a guide wire (50) can be installed in the guide wire connecting hole (23); the guide wire is fixed by a fastening structure.

3. The trial device for detecting guidewire breakage of claim 2, wherein the trial device further comprises a second guide wire,

the fastening structure comprises a screw hole arranged on one side wall of the guide wire connecting hole (23) and a fastening screw (24) installed in the screw hole.

4. The trial device of claim 3 for detecting guidewire breakage,

the other side wall of the guide wire connecting hole (23) is provided with a friction surface or a plane.

5. The trial device of claim 3 wherein the trial guide wire is configured to be broken,

and an inclined guide fixing groove (25) is formed in the other side wall of the guide wire connecting hole (23), and the depth of the guide fixing groove (25) is smaller than the diameter of the guide wire, so that the guide wire still partially protrudes out of the other side wall after being connected to the guide fixing groove (25) to be tightly pressed by a first fastening screw (24).

6. The trial device for detecting guidewire breakage of claim 2, wherein the trial device further comprises a second guide wire,

the guide wire connecting holes (23) are arranged at an acute angle relative to the axis of the guide wire shaft (20).

7. The test device for detecting guidewire breakage of claim 1,

the seal wire fixed knot constructs for connecting fixed cover (26) on seal wire axle (20) set up seal wire connecting hole (23) on the fixed cover.

8. The trial device for detecting guidewire breakage of claim 7, wherein the trial device further comprises a guide wire guide member,

the guide wire connecting hole (23) is parallel to the axis of the guide wire shaft (20) or forms an obtuse angle with the axis.

9. The test device for detecting guidewire breakage of claim 1,

the seal wire fixed knot constructs for setting up breach (27) and the connection of free end (21) of seal wire axle (20) are in wedge (28) of breach (27), wedge (28) with breach (27) are connected and are formed the space fixed to the seal wire.

10. The trial device of claim 9 for detecting guidewire breakage,

the notch (27) is inclined to the axis of the guide wire shaft (20), and correspondingly, the wedge block (28) is in a shape matched with the notch (27).

11. The test device for detecting guidewire rupture according to any of claims 1-10,

the guide wire shaft (20) is detachably connected with the guide wire shaft connecting hole (11) so that the guide wire shaft (20) with different diameters can be replaced to test the guide wire (50).

12. The test device for detecting guidewire breakage according to any one of claims 1 to 10,

the silk guide device is characterized by further comprising a driving shaft (30) which is fixedly connected with the silk guide shaft connecting column (10) and is coaxially arranged with the silk guide shaft (20).

13. The trial device for detecting guidewire rupture according to claim 12,

the driving shaft (30) is connected with a driving motor and a speed reducer.

14. The trial device of claim 13 for detecting guidewire breakage,

the driving motor is a forward and reverse rotation driving motor, or the speed reducer is a bidirectional rotation output speed reducer.

15. The trial device for detecting guidewire rupture according to claim 13,

further comprising:

the box body (40), the said driving shaft (30), driving motor, decelerator are held in the said box body, there is shaft hole that allows the driving shaft (30) to pass horizontally on the sidewall of the said box body correspondingly, and the said driving shaft (30) protrudes out of the sidewall of the said box body (40); and

a controller for controlling the rotation of the motor and the output of the speed reducer;

correspondingly, be equipped with display, operating button on box (40), the display is used for showing the operating condition of motor the rotational speed and the revolution of wire guide shaft, operating button is used for being triggered in order to send operating instruction to driving motor or reduction gear.

16. The trial device of claim 15 for detecting guidewire breakage,

the controller is provided with a Bluetooth module; the display is a touchable control screen.

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