CN107447383B

CN107447383B - Threading apparatus

Info

Publication number: CN107447383B
Application number: CN201710765116.8A
Authority: CN
Inventors: 胡直友; 魏欢; 刘宗均; 朱春燕
Original assignee: Wuxi County Animal Husbandry And Veterinary Management Center
Current assignee: Wuxi County Animal Husbandry And Veterinary Management Center
Priority date: 2017-08-30
Filing date: 2017-08-30
Publication date: 2020-11-24
Anticipated expiration: 2037-08-30
Also published as: CN107447383A

Abstract

The invention provides a threading apparatus, which comprises a machine body, a spring, a power supply and a T-shaped guide rod made of memory alloy; the machine body is provided with a horizontally arranged needle accommodating cavity and a vertically arranged through hole; the needle accommodating cavity is communicated with the through hole; the vertical part of the guide rod is inserted into the through hole and is in sliding connection with the machine body; the top end of the guide rod is provided with a guide slit; a heating device is arranged on the inner wall of the guide seam; the heating device is connected with a power supply; and two ends of the spring are respectively connected with the machine body and the horizontal part of the guide rod. The threading device provided by the invention has the advantages that the threading operation hole is enlarged, the threading difficulty is reduced, and the threading efficiency is improved.

Description

Threading apparatus

Technical Field

The invention relates to the field of auxiliary threading instruments, in particular to a threading device.

Background

Suture needles have been present in our daily lives since the beginning of the original society. Surgical needles, from needles used for sewing clothing to doctors for closing wounds, require a thread to be threaded through the needle hole of the needle before use. Due to the limitation of the size of the suture needle, the needle hole of the suture needle is often smaller, namely the operation hole for threading is smaller, the suture line is often good in flexibility and poor in stiffness, threading difficulty is caused, and threading efficiency is low.

Disclosure of Invention

Aiming at the defects in the prior art, the threading device provided by the invention has the advantages that the threading operation hole is enlarged, the threading difficulty is reduced, and the threading efficiency is improved.

The invention provides a threading apparatus, which comprises a machine body, a spring, a power supply and a T-shaped guide rod made of memory alloy; the machine body is provided with a horizontally arranged needle accommodating cavity and a vertically arranged through hole; the needle accommodating cavity is communicated with the through hole; the vertical part of the guide rod is inserted into the through hole and is in sliding connection with the machine body; the top end of the guide rod is provided with a guide slit; a heating device is arranged on the inner wall of the guide seam; the heating device is connected with a power supply; and two ends of the spring are respectively connected with the machine body and the horizontal part of the guide rod.

Optionally, the heating device is a heating resistance wire installed on the inner wall of the guide seam; the heating resistance wire is connected with a power supply.

Optionally, the top end of the guide rod is provided with a ball; the ball is rotatably connected with the guide rod.

Optionally, the device further comprises a clamping handle provided with a cavity; the clamping handle is rotatably connected with the machine body, and the cavity is communicated with the needle accommodating cavity; a plurality of clamping plates are arranged in the cavity along the circumferential direction; the clamping plate can slide on the clamping handle along the radial direction; and the clamping handle is provided with a driving device for driving the clamping plate to slide.

Optionally, the drive means comprises an apply spring; two ends of the force application spring are respectively connected with the clamping handle and the clamping plate; the clamping handle can slide on the machine body along the horizontal direction; a boss is arranged on the machine body; the boss is inserted into the cavity and is connected with the clamping plate in a wedge shape.

Optionally, the clamping plate is provided with anti-slip teeth; and the outer peripheral surface of the clamping handle is provided with anti-skid reticulate patterns.

Optionally, a baffle is further included; the baffle is slidably mounted at one end of the machine body far away from the guide rod.

According to the technical scheme, the invention has the beneficial effects that: the invention provides a threading apparatus, which comprises a machine body, a spring, a power supply and a T-shaped guide rod made of memory alloy; the machine body is provided with a horizontally arranged needle accommodating cavity and a vertically arranged through hole; the needle accommodating cavity is communicated with the through hole; the vertical part of the guide rod is inserted into the through hole and is in sliding connection with the machine body; the top end of the guide rod is provided with a guide slit; a heating device is arranged on the inner wall of the guide seam; the heating device is connected with a power supply; and two ends of the spring are respectively connected with the machine body and the horizontal part of the guide rod. The threading device provided by the invention has the advantages that the threading operation hole is enlarged, the threading difficulty is reduced, and the threading efficiency is improved.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic structural view of the working state of the present invention;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is an enlarged view taken at A in FIG. 1;

fig. 6 is an enlarged view of fig. 3 at B.

Reference numerals:

1-machine body, 2-spring, 3-guide rod, 4-clamping handle, 5-baffle, 6-needle, 11-needle receiving cavity, 12-through hole, 13-boss, 31-guide slot, 32-ball, 33-heating resistance wire, 41-cavity, 42-force application spring, 61-needle hole and 411-clamping plate.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-6, the threader of the present embodiment includes a body 1, a spring 2, a power source and a T-shaped guiding rod 3 made of memory alloy; the machine body 1 is provided with a horizontally arranged needle accommodating cavity 11 and a vertically arranged through hole 12; the needle accommodating cavity 11 is communicated with the through hole 12; the vertical part of the guide rod 3 is inserted into the through hole 12 and is connected with the machine body 1 in a sliding way; the top end of the guide rod 3 is provided with a guide slit 31; a heating device is arranged on the inner wall of the guide slit 31; the heating device is connected with a power supply; both ends of the spring 2 are respectively connected with the machine body 1 and the horizontal part of the guide rod 3. The needle receiving cavity 11 is adapted to the needle 6. In the initial state, the guide rod 3 is in the shape of a slender rod, and after the transition temperature is reached, the guide slit 31 expands outwards to form a circular ring. The guide rod 3 is pulled downwards, so that the guide rod 3 is positioned below the needle containing cavity 11, and the needle containing cavity 11 is communicated with the through hole 12. The needle 6 is inserted into the needle accommodating chamber 11 so that the needle accommodating chamber 11 is spaced from the through hole 12. The guide rod 3 is released and the guide rod 3 interferes with the needle 6 under the action of the spring 2. The needle 6 is rotated, the guide rod 3 is relatively rotated around the needle 6, and the guide rod 3 abuts against the outer peripheral surface of the needle 6. When the pinhole 61 is located on the same axis as the through-hole 12 and communicates with the through-hole 12. The guide rod 3 slides upwards under the action of the spring 2 and extends upwards along the pin hole 61 through the through hole 12. The heating device is activated to heat the guide rod 3. When the transition temperature of the guide rod 3 is reached, the guide slit 31 expands outward to form a circular ring. The thread is passed through the guide slit 31. The heating device is turned off. When the guide bar 3 is cooled, the guide slits 31 contract inward, and return to the original state. The guide bar 3 is restored to the initial state. The guide rod 3 is pulled downwards, so that the guide rod 3 returns to the position below the needle accommodating cavity 11 along the needle hole 61. The wire is now passed through the needle hole 61 by the guide rod 3. The needle 6 is pulled out from the needle accommodating cavity 11 to cut off the thread. And finishing the threading work. According to the threading device provided by the invention, the aperture of the threading operation hole is enlarged through the guide rod, the threading difficulty is reduced, and the threading efficiency is improved.

As a further improvement to the above technical solution, the heating device is a heating resistance wire 33 installed on the inner wall of the guiding slit 31; the heating resistance wire 33 is connected with a power supply. Simple structure and convenient maintenance.

As a further improvement to the above technical solution, a ball 32 is provided at the top end of the guide rod 3; said balls 32 are rotatably connected to the guide rod 3. The needle 6 can rotate in the needle accommodating cavity 11 conveniently, and the guide rod 3 is prevented from interfering with the needle 6.

As a further improvement to the above technical solution, the device further comprises a clamping handle 4 provided with a cavity 41; the clamping handle 4 is rotatably connected with the machine body 1, and the cavity 41 is communicated with the needle accommodating cavity 11; a plurality of clamping plates 411 are arranged in the cavity 41 along the circumferential direction; the clamping plate 411 can slide on the clamping handle 4 along the radial direction; a driving device for driving the clamping plate 411 to slide is mounted on the clamping handle 4. In the initial state, the grip handle 4 is located at the right side of the machine body 1, and the grip plate 411 is expanded outward in the radial direction. The needle 6 is inserted into the needle receiving chamber 11 along the cavity 41. Under the action of the driving means, the gripping plates 411 slide radially inwards, gripping the needles 6. The grip handle 4 is rotated and the needle 6 is rotated by the grip handle 4. When the pinhole 61 is rotated so that the through-holes 12 are positioned on the same vertical line, the pinhole 61 communicates with the through-holes 12. The guide rod 3 slides upwards under the action of the spring 2 and penetrates out of the through hole 12 along the pin hole 61. When the threading is completed, the gripping plates 411 slide radially outwards under the action of the driving means, releasing the needle 6. The needle 6 is convenient to rotate and operate.

As a further improvement to the above technical solution, the driving means includes an urging spring 42; two ends of the force application spring 42 are respectively connected with the clamping handle 4 and the clamping plate 411; the clamping handle 4 can slide on the machine body 1 along the horizontal direction; a boss 13 is arranged on the machine body 1; the boss 13 is inserted into the cavity 41 and is wedge-connected with the holding plate 411. When the grip handle 4 is slid to the left, the grip plate 411 slides the grip needle 6 radially inward under the pressing of the boss 13. When the holding handle 4 slides to the right, the holding plate 411 slides outward in the radial direction under the action of the force applying spring 42, and the needle is released. The sliding of the clamping plate 411 is convenient to control, other power sources are not used, the structure is simple, and the maintenance is convenient.

As a further improvement to the above technical solution, the clamping plate 411 is provided with anti-slip teeth; and anti-skid reticulate patterns are processed on the peripheral surface of the clamping handle 4. The needle is convenient to rotate, and slipping is prevented.

As a further improvement to the above technical solution, the device further comprises a baffle 5; the baffle 5 is slidably mounted on the machine body 1 at an end away from the guide rod 3. In the initial state, the baffle 5 seals the through hole 12. The grip handle 4 is rotated to communicate the needle hole 61 with the through hole 12. The guide rod 3 slides upwards under the action of the spring 2, passes through the pinhole 61 and interferes with the shutter 5. The slide baffle 5 opens the through hole 12, and the guide rod 3 slides upwards to penetrate out of the through hole 12 under the action of the spring 2. The guide rod 3 is prevented from suddenly penetrating through the through hole 12, the guide rod 3 is prevented from sliding upwards to stab a user, and safety is improved.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A threading apparatus is characterized in that: comprises a machine body (1), a spring (2), a power supply and a T-shaped guide rod (3) made of memory alloy; the machine body (1) is provided with a horizontally arranged needle accommodating cavity (11) and a vertically arranged through hole (12); the needle accommodating cavity (11) is communicated with the through hole (12); the vertical part of the guide rod (3) is inserted into the through hole (12) and is connected with the machine body (1) in a sliding way; the top end of the guide rod (3) is provided with a guide slit (31); a heating device is arranged on the inner wall of the guide slit (31); the heating device is connected with a power supply; two ends of the spring (2) are respectively connected with the horizontal parts of the machine body (1) and the guide rod (3);

the heating device is a heating resistance wire (33) arranged on the inner wall of the guide seam (31); the heating resistance wire (33) is connected with a power supply;

also comprises a baffle (5); the baffle (5) is slidably arranged at one end of the machine body (1) far away from the guide rod (3).

2. The threader of claim 1, wherein: the top end of the guide rod (3) is provided with a ball (32); the balls (32) are connected to the guide rod (3) in a rotatable manner.

3. The threader of claim 1, wherein: also comprises a clamping handle (4) provided with a cavity (41); the clamping handle (4) is rotatably connected with the machine body (1), and the cavity (41) is communicated with the needle accommodating cavity (11); a plurality of clamping plates (411) are arranged in the cavity (41) along the circumferential direction; the clamping plate (411) can slide on the clamping handle (4) along the radial direction; and a driving device for driving the clamping plate (411) to slide is arranged on the clamping handle (4).

4. The threader of claim 3, wherein: the driving device comprises an application spring (42); two ends of the force application spring (42) are respectively connected with the clamping handle (4) and the clamping plate (411); the clamping handle (4) can slide on the machine body (1) along the horizontal direction; a boss (13) is arranged on the machine body (1); the boss (13) is inserted into the cavity (41) and is connected with the clamping plate (411) in a wedge shape.

5. The threader of claim 3, wherein: the clamping plate (411) is provided with anti-skid teeth; and the outer peripheral surface of the clamping handle (4) is processed with anti-skid reticulate patterns.