CN219331761U - Threading device - Google Patents

Abstract

The present utility model provides a threader, comprising: the threading rod comprises a first rod body and a second rod body arranged at the first end of the first rod body, and the second rod body is bent to form a spiral structure; the handle is arranged at the second end of the first rod body. By applying the technical scheme of the utility model, the problem that the suture thread in the related technology is easy to slip from the threading apparatus can be effectively solved.

Description

Threading device

Technical Field

The utility model relates to the field of surgical auxiliary instruments, in particular to a threading apparatus.

Background

After a bone operation, a patient generally needs to reconstruct joint capsules and muscle groups for better postoperative function and recovery. However, both the joint capsule and the tendons of the muscle have been broken during the operation, and thus it is necessary to suture the muscle and the joint capsule to the bone of the patient. The suture operation needs to drill a threading hole on the bone of a patient, and then the suture thread firstly passes through the muscle and then penetrates into the threading hole on the bone of the patient, but in the process of threading the suture thread out of the threading hole, the suture thread is softer, so that the suture thread is difficult to smoothly thread out of the threading hole.

In order to solve the above problems, the suture thread is generally hooked by the threader with a hook portion, but the suture thread is easy to slip from the hook portion of the threader, so that the threader is difficult to smoothly take out the suture thread, the suture efficiency is reduced, and the risk of operation is increased.

Disclosure of Invention

The utility model mainly aims to provide a threading apparatus, which solves the problem that a suture thread in the related art is easy to slip off the threading apparatus.

In order to achieve the above object, the present utility model provides a threader comprising: the threading rod comprises a first rod body and a second rod body arranged at the first end of the first rod body, and the second rod body is bent to form a spiral structure; the handle is arranged at the second end of the first rod body.

Further, the end of the spiral structure remote from the handle has a pulling hook.

Further, the helix has a first end proximal to the handle and a second end distal to the handle, the width of the helix decreasing in a direction from the first end of the helix to the second end of the helix.

Further, the ratio of the width L1 of the first end of the spiral structure to the width L2 of the second end of the spiral structure is between 0.6 and 0.9.

Further, the length of the spiral structure is between 5mm and 30 mm; and/or the ratio of the length of the spiral structure to the length of the threading rod is between 1/10 and 1/12.

Further, the opening of the hook groove of the traction hook part faces to the side where the handle is located.

Further, the diameter of the threading rod is between 0.8mm and 1.2 mm.

Further, an anti-slip structure is arranged on the handle.

Further, a rotation direction indicating structure is arranged on the handle, and the rotation direction indicating structure is the same as the rotation direction of the spiral structure.

Further, be provided with the first mounting hole that extends along the axial direction of handle on the terminal surface of handle, the second mounting hole that extends along the radial direction of handle on the side of handle, first mounting hole and second mounting hole intercommunication, the second end of first body of rod passes first mounting hole, is provided with the first fastener that is located threading pole one side and the second fastener that is located the threading pole opposite side in the second mounting hole, and the threading pole presss from both sides to be fixed in between first fastener and the second fastener.

By applying the technical scheme of the utility model, when the muscles and bones are sutured, the suture thread can firstly pass through the muscles and the suture hole penetrating into the bones of a patient, the thread end of the suture thread can be remained in the suture hole due to softer suture thread, at the moment, a doctor can hold the handle of the threader, the second rod body of the threader is screwed into the suture hole by rotating the handle, and the second rod body is in a spiral structure, so that the doctor rotates along with the second rod body and gradually moves into the suture hole in the process of continuously rotating the handle, at the moment, the suture thread can be wound on the second rod body, and when the doctor pulls the threader outwards, the suture thread can be pulled out from the suture hole along with the threader, and the threading operation is completed. The structure can improve the efficiency of the suture passing out of the threading hole, thereby being beneficial to shortening the time of the muscle suture process and further reducing the risk of operation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic view of an embodiment of a threader according to the utility model operating;

FIG. 2 shows a schematic perspective view of an angle of the threader of FIG. 1;

FIG. 3 shows an enlarged schematic view of the threader of FIG. 2 at A;

FIG. 4 shows a schematic perspective view of the threader of FIG. 1 at another angle;

FIG. 5 shows a cross-sectional view at B-B of the threader of FIG. 4;

fig. 6 is an enlarged view showing a partial structure of the threader of fig. 3.

Wherein the above figures include the following reference numerals:

10. a threading rod; 11. a first rod body; 12. a second rod body; 121. a traction hook; 20. a handle; 21. a second mounting hole; 30. an anti-slip structure; 40. a rotation direction indication structure; 50. a first fastener; 60. a second fastener; 70. a bone; 71. a threading hole; 80. suture line.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Fig. 1 shows a schematic view of an embodiment of a threader according to the utility model when operated, in fig. 1 a bone 70, a threading hole 71 and a suture 80 are shown, the bone 70 being an operation object of the threader, the threading hole 71 being located on the bone 70 and penetrating the bone 70, the suture 80 being capable of being wound around the threader; fig. 2 shows a schematic perspective view of the threader of fig. 1 at an angle, in fig. 2 a rotation direction indicating structure 40 on the handle 20 can be shown; fig. 3 shows an enlarged schematic view of the threader of fig. 2 at a, and fig. 3 mainly shows a specific structure of the second rod body 12.

As shown in fig. 1 to 3, the threader of the present embodiment includes: a threading rod 10 and a handle 20. The threading rod 10 comprises a first rod body 11 and a second rod body 12 arranged at a first end of the first rod body 11, and the second rod body 12 is bent to form a spiral structure; the handle 20 is disposed at the second end of the first rod 11.

By applying the technical scheme of the embodiment, when the muscle and the bone are sutured, the suture thread can be firstly threaded through the muscle, and the suture thread 80 is threaded into the threading hole 71 of the bone 70 of the patient, the thread end of the suture thread 80 can be left in the threading hole 71 because the suture thread 80 is softer, at the moment, a doctor can hold the handle 20 of the column threading device, the handle 20 is rotated to screw the second rod body 12 of the threading device into the threading hole 71, and the doctor continuously rotates the handle 20 and gradually moves into the threading hole 71 due to the fact that the second rod body 12 rotates along with the second rod body 12, at the moment, the suture thread 80 can be wound on the second rod body 12, and when the doctor pulls the threading device outwards, the suture thread 80 can be pulled out from the threading hole 71 along with the threading device, so that the threading operation is completed. The above structure can promote the efficiency of the suture thread 80 passing out from the threading hole 71, thereby helping to shorten the time of the muscle sewing process and further reducing the risk of operation.

It should be noted that, the "bending to form the spiral structure" includes bending the second rod 12 to form a rounded corner structure, and also includes bending the second rod 12 to form a sharp corner structure, preferably, in this embodiment, bending the second rod 12 to form a rounded corner structure.

Further, when the surgeon pulls the threader out of the threading hole 71 after the suture 80 is wound around the spiral structure, the suture 80 still has a certain probability of slipping off the spiral structure. To further reduce the probability of the suture 80 slipping off the threaded rod when the threader is pulled out of the threaded bore 71, the end of the spiral structure remote from the handle 20 has a pulling hook 121 in this embodiment, as shown in fig. 1. In the above structure, the traction hook 121 provided at the end of the spiral structure helps to catch the suture 80 before the suture 80 slips off, so that the suture 80 is smoothly carried out with the threader.

As shown in fig. 2 to 4, in the present embodiment, the spiral structure has a first end close to the handle 20 and a second end far from the handle 20, and the width of the spiral structure gradually decreases in a direction from the first end of the spiral structure to the second end of the spiral structure. The above structure enables the screw structure to move more smoothly when screwed into the threading hole 71. Thereby improving convenience when the threader enters the threading hole 71. On the other hand, the above structure can also make the spiral structure adapt to the threading holes 71 of different diameters, contributing to the improvement of the versatility of the threader. Specifically, when the hole diameter of the threading hole 71 is smaller, the first end of the spiral structure is smaller in width, so that the spiral structure is facilitated to enter the threading hole 71, and at this time, the spiral structure can be attached to the hole wall of the threading hole 71 when being screwed into the threading hole 71 again, so that the probability of contact between the spiral structure and the suture thread 80 is facilitated to be increased, and the suture thread 80 is more easily wound on the spiral structure. Accordingly, when the hole diameter of the threading hole 71 is large, it is also advantageous to increase the probability of the spiral structure coming into contact with the suture 80 because the width of the second end of the spiral structure is large.

Specifically, as shown in fig. 3, in the present embodiment, the ratio of the width L1 of the first end of the spiral structure to the width L2 of the second end of the spiral structure is between 0.6 and 0.9. The above structure enables the threader to be adapted to the threading holes 71 of different diameters, thereby facilitating the improvement of the versatility of the threader.

Further, the ratio of the width L1 of the first end of the spiral structure to the width L2 of the second end of the spiral structure may be 0.6, 0.7, 0.8, 0.9 or any value between 0.6 and 0.9.

As shown in fig. 2 and 4, in the present embodiment, the length of the spiral structure is between 5mm and 30 mm; the structure enables the threading apparatus to be adapted to threading holes of different lengths, thereby further improving the universality of the threading apparatus.

FIG. 4 shows a schematic perspective view of another angle of the threader of FIG. 1, with first fastener 50 shown in FIG. 4; fig. 5 shows a cross-sectional view at B-B of the threader of fig. 4, and fig. 5 shows the manner in which the threading bar 10 is secured within the handle 20.

As shown in fig. 2 and 4, in the present embodiment, the ratio of the length of the spiral structure to the length of the threading rod 10 is between 1/10 and 1/12. The structure makes the threading apparatus reasonable in structure, so that a doctor can conveniently apply force during threading.

Specifically, the ratio of the length of the spiral structure to the length of the threading bar 10 may be 1/10, 1/11, 1/12 or any value between 1/10 and 1/12.

Fig. 6 is an enlarged view showing a partial structure of the threader of fig. 3, and fig. 6 mainly shows a specific structure of the second rod body 12. As shown in fig. 6, in the present embodiment, the opening of the hook groove of the pulling hook portion 121 is directed toward the side of the handle 20. The above structure enables the doctor to hook the suture 80 before the suture 80 is slipped off when pulling the threader, thereby allowing the suture 80 to be smoothly carried out with the threader.

As shown in fig. 2 and 4, in the present embodiment, the threading rod 10 has a diameter of between 0.8mm and 1.2 mm. In the above structure, the threading rod 10 is made of metal, and a doctor may adjust the angle of the threading rod 10 according to the extending direction of the threading hole 71 on the bone 70 of the patient during operation, specifically, the doctor may bend the threading rod 10 to make it easier to penetrate into the threading hole 71, so that the diameter of the threading rod 10 is set between 0.8mm and 1.2mm, which is helpful for the doctor to bend the threading rod 10, so that the doctor can better adapt to the extending direction of the threading hole 71 of the patient, and convenience of the sewing process is improved.

As shown in fig. 2, in the present embodiment, the handle 20 is provided with an anti-slip structure 30. The structure can increase the friction between the threading apparatus and the fingers of the doctor, so that the threading apparatus is not easy to slip when the doctor holds the threading apparatus for operation, and the convenience of the doctor for the operation of the threading apparatus is improved.

As shown in fig. 2, in the present embodiment, the handle 20 is provided with a rotation direction indicating structure 40, and the rotation direction indicating structure 40 is the same as the rotation direction of the spiral structure. The structure enables a doctor to not need to distinguish the screwing direction of the spiral structure in advance, and only needs to rotate the threading apparatus according to the indication of the indication structure to finish the operation of extending the threading apparatus into the threading hole 71, so that the convenience of the doctor in use is improved.

As shown in fig. 4 and 5, in the present embodiment, a first mounting hole extending in the axial direction of the handle 20 is provided on the end surface of the handle 20, a second mounting hole 21 extending in the radial direction of the handle 20 is provided on the side surface of the handle 20, the first mounting hole communicates with the second mounting hole 21, the second end of the first rod body 11 passes through the first mounting hole, a first fastener 50 located at one side of the threading rod 10 and a second fastener 60 located at the other side of the threading rod 10 are provided in the second mounting hole 21, and the threading rod 10 is sandwiched and fixed between the first fastener 50 and the second fastener 60. The structure enables the threading rod 10 to be fixed in the handle 20, and ensures the stability of the fixing of the threading rod 10.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A threader, comprising:

the threading rod (10) comprises a first rod body (11) and a second rod body (12) arranged at the first end of the first rod body (11), and the second rod body (12) is bent to form a spiral structure;

the handle (20) is arranged at the second end of the first rod body (11).

2. Threading device according to claim 1, characterized in that the end of the spiral structure remote from the handle (20) has a pulling hook (121).

3. A threader according to claim 1, characterized in that the helix has a first end close to the handle (20) and a second end remote from the handle (20), the width of the helix decreasing gradually in the direction from the first end of the helix to the second end of the helix.

4. A threader according to claim 3 characterized in that the ratio of the width L1 of the first end of the spiral structure to the width L2 of the second end of the spiral structure is between 0.6 and 0.9.

5. A threader according to claim 3 characterized in that the length of the spiral structure is between 5mm and 30 mm; and/or the ratio of the length of the spiral structure to the length of the threading rod (10) is between 1/10 and 1/12.

6. A threader according to claim 2, characterized in that the opening of the hook groove of the pulling hook (121) is directed towards the side of the handle (20).

7. Threading device according to any of claims 1 to 6, characterized in that the threading rod (10) has a diameter comprised between 0.8mm and 1.2 mm.

8. Threading device according to any of claims 1 to 6, characterized in that the handle (20) is provided with an anti-slip structure (30).

9. Threading device according to any of claims 1 to 6, characterized in that the handle (20) is provided with a rotation direction indicating structure (40), the rotation direction indicating structure (40) being the same as the rotation direction of the spiral structure.

10. The threader according to claim 1, characterized in that a first mounting hole extending in an axial direction of the handle (20) is provided on an end surface of the handle (20), a second mounting hole (21) extending in a radial direction of the handle (20) is provided on a side surface of the handle (20), the first mounting hole communicates with the second mounting hole (21), a second end of the first rod body (11) passes through the first mounting hole, a first fastener (50) located at one side of the threading rod (10) and a second fastener (60) located at the other side of the threading rod (10) are provided in the second mounting hole (21), and the threading rod (10) is clamped and fixed between the first fastener (50) and the second fastener (60).

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