Support assembly for grinding guide wire

Abstract

The utility model relates to the technical field of grinding tools, and discloses a support assembly for guide wire grinding, which comprises a supporting seat and a supporting cutter detachably connected to the supporting seat, the supporting seat comprises a bottom table and two clamping parts, the two clamping parts are arranged at the top of the bottom table at intervals along a first direction, each clamping part comprises two clamping blocks, and the two clamping blocks are arranged on the supporting cutter. The two clamping blocks are fixedly connected with the bottom table and define a channel extending in the first direction, the bottom table is provided with a first groove corresponding to the channel, the first groove penetrates through the bottom table in the first direction, and a bearing protruding strip is arranged at one end in the first groove; the supporting cutter is arranged in the channel and extends in the first direction, the bottom of the supporting cutter protrudes out of the channel and is embedded into the first groove, the two ends of the supporting cutter are detachably connected with the clamping parts respectively, and the top and the bottom of the end, away from the bearing protruding strip, of the supporting cutter are provided with matched protrusions with the same height as the bearing protruding strip. The support assembly for grinding the guide wire can reduce the machining cost of the guide wire by improving the utilization rate of the supporting cutter.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding tools, in particular to a support assembly for guide wire grinding. Background Art

[0002] The guidewire plays the role of introduction, support, opening and exchange in vascular intervention, and is an auxiliary medical device. The guidewire guides and supports the catheter through soft tissues such as subcutaneous tissue and vascular wall, enters the blood vessel through the puncture hole, and needs to guide the catheter through tortuous and hardened blood vessels. The core wire plays the role of strengthening the hardness and support of the guidewire, and the tip of the core wire needs to be soft to reduce the damage to the vascular endothelium when the guidewire passes through the blood vessel.

[0003] At present, grinding tools are usually used to perform precision grinding on both ends of the core wire using the centerless grinding method to reduce the hardness of both ends of the core wire. The grinding tool includes a grinding wheel, an adjusting wheel and a bracket assembly, wherein the grinding wheel actually performs the grinding work, the adjusting wheel controls the rotation of the workpiece to make the workpiece feed speed, and the bracket assembly supports the workpiece during grinding. The specific bracket assembly includes a support seat and a supporting tool detachably connected to the support seat. The core wire is placed on the top of the supporting tool. During grinding, the supporting tool will be ground and worn along with the core wire, and a new supporting tool needs to be frequently replaced, resulting in a high cost for guide wire processing. Utility Model Content

[0004] The purpose of the utility model is to provide a support assembly for grinding a guide wire, so as to reduce the processing cost of the guide wire.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a support assembly for wire grinding, comprising a support seat and a support tool detachably connected to the support seat, the support seat comprising a base and two clamping parts, the two clamping parts are arranged at intervals on the top of the base along a first direction, each of the clamping parts comprises two clamping blocks, the two clamping blocks are fixedly connected to the base and define a channel extending along the first direction, the base is provided with a first groove corresponding to the channel, the first groove passes through the base along the first direction, and a supporting convex strip is provided at one end inside the first groove;

[0006] The supporting tool is arranged in the channel and extends along the first direction. The bottom of the supporting tool protrudes from the channel and is embedded in the first groove. The two ends of the supporting tool are detachably connected to each of the clamping parts. The top and bottom of one end of the supporting tool away from the supporting convex strip are provided with matching protrusions with the same height as the supporting convex strip.

[0007] Preferably, the guide wire grinding bracket assembly also includes two connecting bolts and two connecting nuts, the two clamping blocks of each clamping part are opposite to each other and have a first through hole, the two ends of the supporting tool are respectively provided with a second through hole, each of the connecting bolts passes through the first through hole, the second through hole and is connected to each of the connecting nuts.

[0008] Preferably, the second through hole is a waist-shaped hole extending along the first direction.

[0009] Preferably, a clearance opening is defined between the two clamping parts and the base, and a clearance chamfer is provided at the top of the base corresponding to the clearance opening.

[0010] Preferably, the guide wire grinding bracket assembly further comprises a feeding portion, wherein the feeding portion is connected to an end of the top of the base platform away from the matching protrusion, and a feeding groove extending along the first direction is formed on the top of the feeding portion.

[0011] Preferably, the feeding portion is provided with a taking-in and putting-out opening, and the taking-in and putting-out opening passes through the middle of the feeding trough and protrudes downward from the bottom of the feeding trough.

[0012] Preferably, the feeding trough is a V-shaped groove.

[0013] Preferably, a second chamfer is provided on the top of the opposite side of the two clamping blocks of each clamping portion.

[0014] The embodiment of the utility model is a support assembly for wire grinding, and compared with the prior art, its beneficial effects are:

[0015] By arranging a supporting convex strip in the first groove of the base, the supporting tool is placed in the first groove, and the top and bottom of the end of the supporting tool away from the supporting convex strip are provided with matching protrusions with the same height as the supporting convex strip, so that the supporting tool can be first installed on the supporting seat through the clamping part, and the core wire is placed on the top of the supporting tool and limited to the clamping part during use. When the top of the supporting tool is worn to a certain extent during the core wire grinding process, the supporting tool is disassembled and installed upside down so that the unworn side is located at the top, thereby improving the utilization rate of the supporting tool and effectively reducing the processing cost of the guide wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a guide wire grinding support assembly according to an embodiment of the utility model;

[0017] Figure 2 It is a top view of the guide wire grinding support assembly of the embodiment of the utility model;

[0018] Figure 3 yes Figure 2 Cross-sectional view in the AA direction;

[0019] Figure 4 This is a schematic diagram of the structure of the supporting tool of an embodiment of the utility model;

[0020] In the figure, 1, support seat; 11, base; 111, first groove; 112, supporting convex strip; 113, make way chamfer; 12, clamping part; 121, clamping block; 1211, second chamfer; 1212, first through hole; 122, passage; 13, make way opening; 2, supporting tool; 21, matching protrusion; 22, second through hole; 3, feeding part; 31, feeding trough; 32, taking and releasing opening; 9, core wire. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] like Figures 1 to 4As shown, a guide wire grinding support assembly of a preferred embodiment of the utility model comprises a support seat 1 and a support tool 2 detachably connected to the support seat 1, the support seat 1 comprises a base 11 and two clamping parts 12, the two clamping parts 12 are arranged at intervals on the top of the base 11 along a first direction, each clamping part 12 comprises two clamping blocks 121, the two clamping blocks 121 of each clamping part 12 are fixedly connected to the base 11 and define a channel 122 extending along the first direction, the base 11 is provided with a first groove 111 corresponding to the channel 122, the first groove 111 penetrates the base 11 along the first direction, and a supporting convex strip 112 is provided at one end inside the first groove 111;

[0025] The supporting tool 2 is arranged in the channel 122 and extends along the first direction. The bottom of the supporting tool 2 protrudes from the channel 122 and is embedded in the first groove 111. The two ends of the supporting tool 2 are detachably connected to each clamping part 12 respectively. The top and bottom of the end of the supporting tool 2 away from the supporting convex strip 112 are provided with matching protrusions 21 with the same height as the supporting convex strip 112.

[0026] Based on the guide wire grinding bracket assembly of the above embodiment, a supporting ridge 112 is arranged in the first groove 111 of the base 11, and the supporting tool 2 is placed in the first groove 111. The top and bottom of the end of the supporting tool 2 away from the supporting ridge 112 are provided with matching protrusions 21 with the same height as the supporting ridge 112, so that the supporting tool 2 can be first installed on the support seat 1 through the clamping part 12. When in use, the core wire 9 is placed on the top of the supporting tool 2 and limited to the clamping part 12. When the top of the supporting tool 2 is worn to a certain extent during the grinding process of the core wire 9, the supporting tool 2 is disassembled and installed upside down, so that the unworn side is located at the top, thereby improving the utilization rate of the supporting tool 2 and effectively reducing the processing cost of the guide wire.

[0027] In some embodiments, the support assembly for guide wire grinding further includes two connecting bolts (not shown) and two connecting nuts (not shown), the two clamping blocks 121 of each clamping portion 12 are relatively provided with a first through hole 1212, and the two ends of the supporting tool 2 are respectively provided with a second through hole 22, and each connecting bolt passes through the first through hole 1212 and the second through hole 22 and is connected to each connecting nut.

[0028] Furthermore, the second through hole 22 is a waist-shaped hole extending along the first direction, so that the installation position of the supporting tool 2 along the first direction can be adjusted.

[0029] Preferably, a clearance opening 13 is defined between the two clamping parts 12 and the base 11 , and a clearance chamfer 113 is provided at the top of the base 11 corresponding to the clearance opening 13 to make way for the grinding wheel and the adjusting wheel.

[0030] Preferably, the support assembly for guide wire grinding also includes a feeding part 3, which is connected to one end of the top of the base 11 facing away from the matching protrusion 21 of the supporting tool 2, and a feeding groove 31 extending along the first direction is opened on the top of the feeding part 3. The core wire 9 is placed in the feeding groove 31, and the head end extends out of the feeding groove 31 and is placed on the supporting tool 2.

[0031] Preferably, the feeding part 3 is provided with a take-in and put-out opening 32, which passes through the middle of the feeding trough 31 and protrudes downward from the bottom of the feeding trough 31. By providing the take-in and put-out opening 32 that passes through the feeding trough 31 in the feeding part 3, and the take-in and put-out opening 32 protrudes downward from the bottom of the feeding trough 31, personnel can conveniently take out the core wire 9 placed in the feeding trough 31 from the take-in and put-out opening 32.

[0032] Preferably, the feeding groove 31 is a V-shaped groove so as to accommodate the placement of core wires 9 of different diameters.

[0033] Preferably, a second chamfer 1211 is provided on the top of the opposite side of the two clamping blocks 121 of each clamping portion 12 to facilitate the positioning and insertion of the supporting tool 2.

[0034] In summary, the embodiment of the utility model provides a bracket assembly for guide wire grinding, which includes a supporting tool that can be used on both sides, and the base of the support seat is provided with a supporting convex strip that cooperates with the supporting tool. When the top of the supporting tool is worn to a certain extent during the core wire grinding process, the supporting tool is disassembled and installed upside down so that the unworn side is located at the top, thereby improving the utilization rate of the supporting tool and effectively reducing the processing cost of the guide wire.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A support assembly for guide wire grinding, comprising a support seat and a support tool detachably connected to the support seat, characterized in that: The support seat includes a base and two clamping parts, the two clamping parts are arranged at intervals on the top of the base along the first direction, each of the clamping parts includes two clamping blocks, the two clamping blocks are fixedly connected to the base and define a channel extending along the first direction, the base is provided with a first groove corresponding to the channel, the first groove passes through the base along the first direction, and a supporting convex strip is provided at one end of the first groove; The supporting tool is arranged in the channel and extends along the first direction. The bottom of the supporting tool protrudes from the channel and is embedded in the first groove. The two ends of the supporting tool are detachably connected to each of the clamping parts. The top and bottom of one end of the supporting tool away from the supporting convex strip are provided with matching protrusions with the same height as the supporting convex strip.

2. The guide wire grinding support assembly according to claim 1, characterized in that: It also includes two connecting bolts and two connecting nuts. The two clamping blocks of each clamping part are opposite to each other and have first through holes. The two ends of the supporting tool are respectively provided with second through holes. Each connecting bolt passes through the first through hole, the second through hole and is connected to each connecting nut.

3. The guide wire grinding support assembly according to claim 2, characterized in that: The second through hole is a waist-shaped hole extending along the first direction.

4. The guide wire grinding support assembly according to claim 1, characterized in that: A clearance opening is defined between the two clamping parts and the base, and a clearance chamfer angle is provided at the top of the base corresponding to the clearance opening.

5. The guide wire grinding support assembly according to claim 1, characterized in that: It also includes a feeding portion, which is connected to an end of the top of the base away from the matching protrusion, and the top of the feeding portion is provided with a feeding groove extending along the first direction.

6. The guide wire grinding support assembly according to claim 5, characterized in that: The feeding part is provided with a taking-in and putting-out opening, which passes through the middle of the feeding trough and protrudes downward from the bottom of the feeding trough.

7. The guide wire grinding support assembly according to claim 5, characterized in that: The feeding trough is a V-shaped groove.

8. The guide wire grinding support assembly according to claim 1, characterized in that: A second chamfer is provided on the top of one side opposite to the two clamping blocks of each clamping portion.

Images