CN219331761U - Threader - Google Patents

Abstract

The utility model provides a threader, comprising: a threading rod, including a first rod body and a second rod body arranged at the first end of the first rod body, the second rod body is bent to form a spiral structure; a handle is arranged on the first rod body the second end of . The application of the technical solution of the utility model can effectively solve the problem in the related art that the suture thread is easy to slip off from the threader.

Description

Threader

technical field

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

Background technique

After bone surgery, patients generally need to rebuild the joint capsule and muscle groups in order to achieve better postoperative function and recovery. However, the tendons of the joint capsule and muscle have been ruptured during the operation, so the muscle and joint capsule need to be sutured to the patient's bone. The suturing operation needs to drill a threading hole on the patient's bone earlier, and then the suture thread first passes through the muscle and then penetrates into the threading hole on the patient's bone, but in the process of passing the suture thread out of the threading hole, due to the suture The thread is soft, making it difficult to thread it smoothly through the threading hole.

In the related art, in order to solve the above problems, the suture thread is generally hooked out by a threader with a hook, but the suture is easy to slip off from the hook of the threader, making it difficult for the threader to take out the suture smoothly, reducing the efficiency of suturing. increased surgical risk.

Utility model content

The main purpose of the utility model is to provide a threader to solve the problem in the related art that sutures are easy to slip off from the threader.

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

Further, the end of the helical structure away from the handle has a traction hook.

Further, the helical structure has a first end close to the handle and a second end far away from the handle, and the width of the helical structure gradually decreases from the first end of the helical structure to the second end of the helical structure.

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

Further, the length of the helical structure is between 5 mm and 30 mm; and/or, the ratio of the length of the helical 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 faces the side where the handle is located.

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

Further, the handle is provided with an anti-slip structure.

Further, the handle is provided with a rotation direction indicating structure, which has the same rotation direction as the helical structure.

Further, a first installation hole extending along the axial direction of the handle is provided on the end surface of the handle, a second installation hole extending along the radial direction of the handle is provided on the side of the handle, the first installation hole communicates with the second installation hole, The second end of the first rod body passes through the first mounting hole, and the second mounting hole is provided with a first fastener on one side of the threading rod and a second fastener on the other side of the threading rod, and the threading rod is clamped Fixed between the first fastener and the second fastener.

Applying the technical scheme of the utility model, when suturing muscles and bones, the suture thread can be passed through the muscle first, and in the threading hole of the patient's bone, because the suture thread is relatively soft, the thread end of the suture thread will stay in the threading hole At this time, the doctor can hold the handle of the threader, and rotate the handle to screw the second rod body of the threader into the threading hole. Since the second rod body is in a helical structure, the doctor rotates the handle continuously. It rotates and gradually moves into the threading hole. At this time, the suture can be wound on the second rod body. When the doctor pulls the threader outward, the suture can be pulled out from the threading hole along with the threader to complete the threading operation. . The above-mentioned structure can improve the efficiency of the suture thread passing through the thread hole, thereby helping to shorten the time of the muscle suturing process, thereby reducing the risk of the operation.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 shows the schematic diagram when operating according to the embodiment of the threader of the present utility model;

Fig. 2 shows a perspective view of the three-dimensional structure of the threader in Fig. 1;

Fig. 3 shows the schematic diagram of the enlarged structure of A place of the threader of Fig. 2;

Fig. 4 shows a perspective view of the three-dimensional structure of the threader of Fig. 1 from another angle;

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

FIG. 6 shows an enlarged view of a partial structure of the threader in FIG. 3 .

Wherein, the above-mentioned accompanying drawings include the following reference signs:

10. Threading rod; 11. First rod body; 12. Second rod body; 121. Traction hook; 20. Handle; 21. Second mounting hole; 30. Anti-slip structure; 40. Rotation direction indicating structure; 50. First Fastener; 60, second fastener; 70, bone; 71, threading hole; 80, suture.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. The following description of at least one exemplary embodiment is merely illustrative in nature, and in no way serves as any limitation of the invention and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Specification. In all examples shown and discussed herein, any specific values should be construed as illustrative only, and not as limiting. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

Fig. 1 shows the schematic diagram when operating according to the embodiment of threader of the present utility model, in Fig. 1 shows skeleton 70, threading hole 71 and suture 80, and skeleton 70 is the operation object of threader, threading hole 71 is located on the bone 70 and runs through the bone 70, and the suture 80 can be wound on the threader; FIG. 2 shows a perspective view of the three-dimensional structure of the threader in FIG. Rotation direction indicating structure 40; FIG. 3 shows an enlarged schematic view of the structure at A of the threader in FIG. 2 , and FIG. 3 mainly shows the specific structure of the second rod body 12 .

As shown in FIGS. 1 to 3 , the threader of this embodiment includes: a threading rod 10 and a handle 20 . Wherein, the threading rod 10 includes a first rod body 11 and a second rod body 12 disposed at the first end of the first rod body 11 , the second rod body 12 is bent to form a helical structure; the handle 20 is disposed at the second end of the first rod body 11 .

Applying the technical scheme of this embodiment, when suturing muscles and bones, the suture thread can be passed through the muscle first, and in the threading hole 71 penetrating into the patient's bone 70, because the suture thread 80 is soft, the thread ends of the suture thread 80 will remain In the threading hole 71, the doctor can hold the handle 20 of the column threader at this time, and rotate the handle 20 to screw the second rod body 12 of the threader into the threading hole 71. Since the second rod body 12 is in a helical structure, the doctor is constantly In the process of rotating the handle 20, the second rod body 12 rotates thereupon and gradually moves into the threading hole 71. At this time, the suture thread 80 can be wound on the second rod body 12. When the doctor pulls the threader outward, the suture thread 80 The threading operation can be completed as the threader is pulled out from the threading hole 71 . The above-mentioned structure can improve the efficiency of the suture thread 80 passing through the thread hole 71, thereby helping to shorten the time of the muscle suturing process, thereby reducing the risk of the operation.

It should be noted that the above-mentioned "bending to form a helical structure" includes bending the second rod body 12 to form a smooth corner structure, and also includes bending the second rod body 12 to form a sharp corner structure. Preferably, in this embodiment, the second The two rod bodies 12 are bent to form a smooth corner structure.

Further, when the doctor pulls out the threader from the threading hole 71 after the suture 80 is wound on the helical structure, there is still a certain probability that the suture 80 will slip off the helical structure. In order to further reduce the probability that the suture 80 slips off the threading rod when the threader is pulled out from the threading hole 71, as shown in FIG. In the above structure, the traction hook 121 provided at the end of the helical structure helps to hook the suture 80 before the suture 80 slips off, so that the suture 80 is brought out smoothly with the threader.

2 to 4, in this embodiment, the helical structure has a first end close to the handle 20 and a second end away from the handle 20, and the width of the helical structure is between the first end of the helical structure and the width of the helical structure. gradually decreases in the direction of the second end. The above structure enables the helical structure to move more smoothly when screwed into the threading hole 71 . Thereby, the convenience when the threader enters the threading hole 71 is improved. On the other hand, the above structure can also enable the helical structure to adapt to threading holes 71 of different diameters, which helps to improve the versatility of the threader. Specifically, when the aperture of the threading hole 71 is small, because the width of the first end of the helical structure is small, it helps the helical structure to enter the threading hole 71, and when the helical structure is screwed into the threading hole 71, it can be connected with the threading hole 71. The hole walls of the holes 71 are in close contact, so it is beneficial to increase the probability that the helix will be in contact with the suture 80, making it easier for the suture 80 to be wound on the helix. Correspondingly, when the diameter of the threading hole 71 is larger, since the width of the second end of the helical structure is larger, it is also beneficial to increase the probability of contact between the helical structure and the suture 80 .

Specifically, as shown in FIG. 3 , in this embodiment, the ratio of the width L1 of the first end of the helical structure to the width L2 of the second end of the helical structure is between 0.6 and 0.9. The above structure enables the threader to adapt to threading holes 71 of different diameters, which is beneficial to improve the versatility of the threader.

Further, the ratio of the width L1 of the first end of the helical structure to the width L2 of the second end of the helical 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 FIG. 4 , in this embodiment, the length of the helical structure is between 5mm and 30mm; the above-mentioned structure enables the threader to adapt to threading holes of different lengths, thereby further improving the versatility of the threader.

Fig. 4 shows a schematic perspective view of the three-dimensional structure of another angle of the threader of Fig. 1, and Fig. 4 shows a first fastener 50; Fig. 5 shows a cross-sectional view at B-B of the threader of Fig. 4, Fig. 5 The manner in which the threading rod 10 is secured within the handle 20 is shown.

As shown in FIG. 2 and FIG. 4 , in this embodiment, the ratio of the length of the helical structure to the length of the threading rod 10 is between 1/10 and 1/12. The above-mentioned structure makes the structure of the threader reasonable, so that the doctor can conveniently apply force when threading the thread.

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

FIG. 6 shows an enlarged view of a partial structure of the needle threader in FIG. 3 , and FIG. 6 mainly shows the specific structure of the second rod body 12 . As shown in FIG. 6 , in this embodiment, the opening of the hook groove of the towing hook portion 121 faces the side where the handle 20 is located. The above structure enables the pulling hook 121 to hook the suture 80 before the suture 80 slips off when the doctor pulls the threader, so that the suture 80 is brought out smoothly along with the threader.

As shown in FIG. 2 and FIG. 4 , in this embodiment, the diameter of the threading rod 10 is between 0.8mm and 1.2mm. In the above structure, the threading rod 10 is made of metal, and the doctor may adjust the angle of the threading rod 10 according to the extension direction of the threading hole 71 on the patient's bone 70 during the operation. Specifically, the doctor may adjust the threading rod 10 to Bending, making it easier to pass through the threading hole 71, so setting the diameter of the threading rod 10 between 0.8mm and 1.2mm helps the doctor to bend the threading rod 10 so that it can better fit Match the extension direction of the patient threading hole 71, thereby improving the convenience of the suturing process.

As shown in FIG. 2 , in this embodiment, the handle 20 is provided with an anti-slip structure 30 . The above structure can increase the friction between the threader and the doctor's fingers, so that the threader is not easy to slip when the doctor holds the threader for operation, thereby improving the convenience for the doctor to operate the threader.

As shown in FIG. 2 , in this 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 helical structure. The above-mentioned structure makes it unnecessary for the doctor to distinguish the direction of rotation of the helical structure in advance, and only needs to rotate the threader according to the instruction of the indicating structure to complete the operation of inserting the threader into the threading hole 71, which improves the convenience of the doctor when using it.

As shown in Figures 4 and 5, in this embodiment, the end face of the handle 20 is provided with a first installation hole extending along the axial direction of the handle 20, and the side surface of the handle 20 extends along the radial direction of the handle 20. The second mounting hole 21, 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, and the second mounting hole 21 is provided with a second mounting hole on one side of the threading rod 10. A fastener 50 and a second fastener 60 located on the other side of the threading rod 10 , the threading rod 10 is interposed and fixed between the first fastener 50 and the second fastener 60 . The above structure enables the threading rod 10 to be fixed in the handle 20 and ensures the stability of the threading rod 10 being fixed.

In the description of the present utility model, it should be understood that orientation words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. indicate The orientation or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description. In the absence of a contrary statement, these orientation words do not indicate or imply the referred device Or components must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be construed as limiting the protection scope of the present utility model; the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations”. Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. To limit the scope of protection of the utility model.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A threader, characterized in that, comprising: A threading rod (10), comprising a first rod body (11) and a second rod body (12) arranged at the first end of the first rod body (11), the second rod body (12) being bent to form a helical structure; The handle (20) is arranged at the second end of the first rod body (11). 2. The needle threader according to claim 1, characterized in that, an end of the helical structure away from the handle (20) has a traction hook (121). 3. The threader according to claim 1, characterized in that, the helical structure has a first end close to the handle (20) and a second end away from the handle (20), the helical structure The width gradually decreases in a direction from the first end of the helical structure to the second end of the helical structure. 4 . The threader according to claim 3 , wherein the ratio of the width L1 of the first end of the helical structure to the width L2 of the second end of the helical structure is between 0.6 and 0.9. 5. The threader according to claim 3, characterized in that, the length of the helical structure is between 5mm and 30mm; and/or, the length of the helical structure is equal to the length of the threading rod (10). The ratio is between 1/10 and 1/12. 6. The needle threader according to claim 2, characterized in that, the opening of the hook groove of the traction hook part (121) faces the side where the handle (20) is located. 7. The threader according to any one of claims 1 to 6, characterized in that the diameter of the threading rod (10) is between 0.8mm and 1.2mm. 8. The needle threader according to any one of claims 1 to 6, characterized in that, the handle (20) is provided with an anti-slip structure (30). 9. The needle threader according to any one of claims 1 to 6, characterized in that, the handle (20) is provided with a rotation direction indicating structure (40), and the rotation direction indicating structure (40) is compatible with the rotation direction indicating structure (40) The helical structures have the same hand direction. 10. The needle threader according to claim 1, characterized in that, the end face of the handle (20) is provided with a first installation hole extending along the axial direction of the handle (20), and the handle (20) ) on the side of the second mounting hole (21) extending along the radial direction of the handle (20), the first mounting hole communicates with the second mounting hole (21), and the first rod body (11 ) through the first mounting hole, the second mounting hole (21) is provided with the first fastener (50) on one side of the threading rod (10) and the The second fastener (60) on the other side of the threading rod (10), the threading rod (10) is clamped and fixed on the first fastener (50) and the second fastener (60) )between.

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