A line puller

Abstract

The application relates to the technical field of surgical thread end processing devices, and particularly discloses a thread lifter, which comprises a penetrating piece, a traction line and an operator; the front end of the penetrating piece is provided with a through hole which is in communication with the outside; the two end heads of the traction line are both extended to the outside of the penetrating piece in the rear end direction, and the traction line passes through the through hole; the operator is used for pushing away the traction line at the front end of the penetrating piece, so that the traction line at the front end of the penetrating piece forms an open thread fixing cavity. In the scheme, the penetrating piece can carry the traction line to extend into a cut, then the traction line is operated by the operator to form a thread fixing cavity, the thread end is placed into the thread fixing cavity, the medical staff can tighten the thread fixing cavity by pulling the traction line from the rear end, the thread end is fixed, finally the penetrating piece is taken out, and the process of taking out the thread end is completed. Since the penetrating piece does not have a hook structure, the risk of damaging tissues during taking out is small, and the operation difficulty of the medical staff can be reduced.

Description

Technical Field

[0001] This application relates to the field of surgical suture handling devices, and more particularly to a suture lifter. Background Technology

[0002] Temporomandibular joint disorder (TMD) is a general term for diseases affecting the temporomandibular joint and surrounding muscles, ligaments, and other structures. Its main symptoms include pain in the joint area, abnormal mandibular movement (such as limited mouth opening), and clicking or whistling sounds in the joint. The temporomandibular joint, located 0.5-1 cm anterior to the tragus (the cartilaginous protrusion at the entrance to the ear canal), is one of the most complex joints in the human body. It is composed of the condyle, glenoid fossa, articular disc, and surrounding muscles and ligaments, and participates in and performs functions such as chewing, speech, swallowing, and facial expressions.

[0003] Studies show that psychological and emotional problems can lead to tension in the masticatory muscles; long-term unilateral chewing or biting hard objects can also lead to fatigue of the masticatory muscles or damage to the joint discs; under the multiple factors such as the widespread psychological stress and bad habits in people today, temporomandibular joint disorder has become one of the most common diseases of the oral and maxillofacial region, with a high incidence rate (the annual incidence rate in the general population is about 6.7%).

[0004] Irreversible anterior displacement of the temporomandibular joint disc is one of the most common classifications of temporomandibular joint disorders. For example... Figure 1 and Figure 2 As shown: Figure 1 This diagram shows the change in position of articular disc 1 on condyle 2 under normal conditions, from the closed position (left side of the image) to the open position (right side of the image). Figure 2 This diagram illustrates the positional change of disc 1 on condyle 2 during the transition from a closed to an open position in the case of irreducible anterior displacement of the articular disc. (Combined with...) Figure 1 and Figure 2 It can be seen that when the temporomandibular joint disc undergoes irreversible anterior displacement, the disc will separate from the condyle 2, resulting in limited mouth opening, mouth deviation, and mouth opening pain.

[0005] The treatment for irreducible anterior displacement of the temporomandibular joint disc is usually a temporomandibular joint disc repositioning and fixation procedure. Specifically, non-absorbable sutures are used to pass through the inner and outer sides of the joint disc 1, and an incision is made below the external auditory canal. Then, the suture ends in the joint cavity are hooked out using a suture hooker.

[0006] The hook device has a hook structure at the front end that can catch the end of the thread. Under the magnification of the arthroscopy, it can accurately catch the end of the thread. However, arthroscopic surgery is difficult to perform, and few people have mastered it in clinical practice. It has the problems of high difficulty in operation and high risk of tissue damage. Utility Model Content

[0007] In view of this, the purpose of this application is to provide a thread puller to solve the problems of existing thread removal methods being difficult to operate and having a high risk of damaging tissue.

[0008] To achieve the above-mentioned technical objectives, this application provides a wire lifting device, including: an insert, a traction wire, and an operator;

[0009] The front end of the insert is provided with a through hole that communicates with the outside.

[0010] Both ends of the traction wire extend out of the insert along the rear end direction, and the traction wire passes through the through hole;

[0011] The manipulator is used to pry open the traction wire at the front end of the insert to form an open wire-fixing cavity.

[0012] Furthermore, the insert is cylindrical;

[0013] The through hole extends through the insert along the axial direction of the insert.

[0014] Furthermore, the insert is cylindrical;

[0015] The through hole extends radially through the insert.

[0016] Furthermore, the insertion component includes: a puncture needle and a metal wire;

[0017] The puncture needle has a through hole extending from the front end to the rear end.

[0018] The metal wire is folded in half and twisted into a double-strand twisted structure, and the front end of the double-strand twisted structure forms the through hole;

[0019] The double-strand twisted structure extends into the perforation;

[0020] The traction line is attached to the outside of the puncture needle.

[0021] Furthermore, the metal wire is an orthogonal wire.

[0022] Furthermore, the traction suture is a surgical suture.

[0023] Furthermore, the tip of the puncture needle has a rounded transition structure.

[0024] Furthermore, the manipulator is tweezers.

[0025] As can be seen from the above technical solutions, this application provides a wire lifting device, including: an insert, a traction wire, and an operator; the front end of the insert is provided with a through hole communicating with the outside; both ends of the traction wire extend out of the insert along the rear end direction, and the traction wire passes through the through hole; the operator is used to pry open the traction wire at the front end of the insert so that the traction wire at the front end of the insert forms an open wire-fixing cavity.

[0026] In this procedure, the insertion device carries the traction suture to the incision site. The manipulator then manipulates the traction suture to create a fixation cavity. The suture end is placed into this cavity, and medical staff pull the traction suture from the rear to tighten the cavity, securing the suture end. Finally, the insertion device is removed, completing the suture removal process. Because the insertion device lacks a hook structure, the risk of tissue damage during removal is low, and the procedure is less difficult for medical staff. In practical applications, the suture lifter provided by this procedure can be used during open surgery under direct visualization without the need for arthroscopy, thus improving the applicability of the suture lifter. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This diagram shows the change in position of the articular disc on the condyle during the process of opening the mouth from closed to open under normal circumstances.

[0029] Figure 2 This diagram shows the change in the position of the articular disc on the condyle during the process from closure to opening in the case of irreversible anterior displacement of the articular disc.

[0030] Figure 3 A structural exploded view of a wire lifting device provided in an embodiment of this application;

[0031] Figure 4 A structural diagram of a wire lifting device provided in an embodiment of this application;

[0032] Figure 5 A structural exploded view of a string lifter provided in another embodiment of this application;

[0033] Figure 6 A structural diagram of a wire lifter provided in another embodiment of this application;

[0034] Figure 7A schematic diagram of a wire lifter inserted axially through a through hole, as provided in an embodiment of this application;

[0035] Figure 8 Another schematic diagram of a wire lifter when it penetrates the insert along the axial direction of the through hole, as provided in the embodiments of this application;

[0036] Figure 9 A schematic diagram of a wire lifter radially penetrating a through-hole in an embodiment of this application;

[0037] In the image: 1. Articular disc; 2. Condyle;

[0038] 10. Insertion part; 11. Through hole; 12. Puncture needle; 13. Metal wire; 14. Perforation; 20. Traction line. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0040] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0042] Please see Figures 3 to 4This application provides a suture puller that can be used to pull out the suture end during surgery requiring sutures. For ease of explanation, the embodiment provided in this application takes temporomandibular joint disc reduction and fixation surgery as an example.

[0043] During temporomandibular joint disc repositioning and fixation, an incision is made approximately 0.5 cm anterior to the tragus (the cartilage behind the external auditory canal). Medical staff then suture the disc through this incision.

[0044] In this embodiment, the suture puller includes: an inserter 10, a traction thread 20, and an operator. The inserter 10 can be inserted from the external auditory canal to the incision. The traction thread 20 is disposed on the inserter 10 and can follow the inserter 10 from the external auditory canal to the incision to connect the suture end; the operator is used to operate the traction thread 20 to connect the suture end to the traction thread 20.

[0045] Specifically, the front end of the insert 10 has a through hole 11 that communicates with the outside; both ends of the traction wire 20 extend out of the insert in the rearward direction, and the traction wire 20 passes through the through hole 11; the operator is used to pry open the traction wire 20 at the front end of the insert 10, so that the traction wire 20 at the front end of the insert 10 forms an open wire-fixing cavity 21. In the embodiments provided in this application, the front-rear direction of the wire lifter can be as follows: Figure 3 As shown, the axial direction of the insert 10 is defined as follows: the end of the insert 10 used to penetrate the patient's body is its front end, and the other end is its rear end.

[0046] As one implementation method, please refer to Figure 4 The through hole 11 can be a hole that extends through the entire length of the device. The traction wire 20 can pass through the rear end of the through hole 11 into the insert 10 and exit the insert 10 from the front end of the through hole 11. Specifically, the traction wire 20 is folded in half and then passes through the through hole 11 so that the protruding part of the traction wire 20 can form a wire-fixing cavity 21. The actuator is not shown in the figure, but it can be a needle-shaped actuator that can separate one section of the traction wire 20 from the other section, thereby forming a wire-fixing cavity 21 between the two sections of the traction wire 20.

[0047] In practical applications, after the inserter 10 is inserted into the ear canal and exits through the incision, the front end of the inserter 10 can be moved to a position where it does not come into contact with human tissue. At this point, there is no risk of damaging human tissue when the manipulator opens the front end of the inserter 10. After the traction suture 20 is opened to form the suture fixation cavity 21, the inserter 10 moves to the suture fixation cavity 21 to cover the end of the suture. Then, the medical staff pulls the rear end of the traction suture 20, which tightens the traction suture 20, causing the suture fixation cavity 21 to gradually shrink until the end of the suture is clamped between the two sections of the traction suture 20. At this point, the inserter 10 and the traction suture 20 are pulled out of the external auditory canal, thus pulling the end of the suture out of the external auditory canal.

[0048] During the pulling out of the insert 10 and the traction suture 20, the insert 10 does not have barbs or other parts that could easily damage tissue, thus reducing the risk of tissue damage and simplifying the operation for medical staff. Furthermore, since the volume of the suture cavity 21 after it is opened is larger than the volume of the hook on the suture hook, skilled medical staff can perform open surgery without arthroscopy, thereby reducing the cost and complexity of the surgery.

[0049] It should be noted that during the surgery, both the suture ends and the surface of the traction suture 20 extending into the incision will become moist due to contact with bodily fluids. Therefore, when the suture end and the traction suture 20 are in contact, the movement of the traction suture 20 can exert a pulling effect on the suture end. When the suture fixing cavity 21 tightens, the suture end is simultaneously held in the middle by the two traction sutures 20. At this time, pulling the traction suture 20 can move the suture end through the friction between the traction suture 20 and the suture end. In existing operating methods, after the hook device hooks the suture end, it also moves the suture end through the friction between the hook structure and the suture end; that is, in principle, both use friction. Therefore, using this device will not increase the difficulty of moving the suture end after fixing it.

[0050] In practical applications, two sutures are typically used on each side of the articular disc, resulting in a total of four suture ends. In this embodiment, the suture fixing cavity 21 can simultaneously attach multiple suture ends during operation to improve operational efficiency.

[0051] It should be noted that during the procedure, if the suture end is in contact with human tissue, medical staff can use a manipulator to lift the suture end so that it can be inserted into the suture securing cavity 21. This process is consistent with existing methods of lifting the suture end with a manipulator so that the hook can catch it. Therefore, using this device will not increase the risk of tissue damage.

[0052] As one implementation method, the insertion device 10 and the traction wire 20 can be designed as an integrated structure during production. For example, during production, the traction wire 20 can be threaded through the through hole 11 and made to fit snugly against the insertion device 10, so that medical personnel can use the insertion device 10 directly upon receiving it.

[0053] As one implementation method, please refer to Figure 7 and Figure 8 The insert 10 can be a columnar structure; the through hole 11 can be located inside the insert 10 and extend through the through hole of the insert 10 in the front-back direction (i.e., the axial direction of the insert 10). In this way, such as Figure 6 As shown, the traction wire 20 passes through the inside of the insert 10. (As indicated...) Figure 7As shown, the traction wire 20 passing through the through hole 11 can be partially located inside the insert 10 and partially located outside the insert 10.

[0054] As one implementation method, please refer to Figure 9 The through hole 11 may be located only at the front end of the insert 10 and extend through the through hole of the insert 10 in the horizontal direction (i.e., the radial direction of the insert 10). In this way, the traction wire 20 passing through the through hole 11 is located on the outside of the insert 10.

[0055] In another embodiment provided in this application, please refer to Figure 5 and Figure 6 The insert 10 includes a puncture needle 12 and a metal wire 13; the puncture needle 12 has a through hole 14 extending from the front end to the rear end; the metal wire 13 is folded in half and twisted into a double-strand twisted structure, and the front end of the double-strand twisted structure forms a through hole 11; the double-strand twisted structure extends into the through hole 14; the traction wire 20 is attached to the outside of the puncture needle 12.

[0056] The folding and twisting of the metal wire 13 into a double-strand twisted structure means that after folding a section of metal wire 13 into two contacting sections of metal wire 13, the two sections of metal wire 13 are twisted together in a cross-twisting manner to form a "twisted" structure, and finally a hole-like structure is formed at the front end of the metal wire 13 as a through hole 11.

[0057] In this embodiment, the metal wire 13, being a rigid and shape-maintaining thread, can be folded in half, twisted into strands, and then passed through the perforation 14. The puncture needle 12, as a commonly used instrument in surgical departments, is readily available to medical personnel. During actual surgery, medical personnel can create their own insertion piece 10 from the metal wire 13 and the puncture needle 12, and pass the traction line 20 through the through hole 11, thus achieving self-made suture lifting device structure.

[0058] Since the through hole 11 at the front end of the metal wire 13 extends out of the front end of the puncture needle 12, and the traction wire 20 passes through the through hole 11, the two ends of the traction wire 20 can be tightened when pulled at the rear end. In this embodiment, after the traction wire 20 passes through the through hole 11, it is located outside the puncture needle 12.

[0059] It should be noted that in some special cases during actual surgery, such as when the traction suture 20 breaks during the operation and the suture head cannot be threaded through, the through hole 11 of the metal wire 13 extending from the front end of the puncture needle 12 can serve as a socket structure for the suture head to pass through, thereby improving the error tolerance during the operation.

[0060] As one implementation method, the metal wire 13 is an orthodontic wire, which is readily available to medical staff.

[0061] As one implementation method, the traction suture 20 is a surgical suture, which is readily available to medical personnel.

[0062] As one implementation method, the tip of the puncture needle 12 has a rounded transition structure to reduce the risk of tissue damage during the insertion of the puncture needle 12 into the incision. In practical applications, a puncture needle with a ground tip can be used.

[0063] As one implementation method, the manipulator is tweezers, specifically medical tweezers commonly used in the department in the existing technology.

[0064] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A string lifting device, characterized in that, include: Insertion device (10), traction line (20) and operator; The front end of the insert (10) is provided with a through hole (11) that is open to the outside. Both ends of the traction wire (20) extend out of the insert in the rear direction, and the traction wire passes through the through hole (11). The manipulator is used to pry open the traction wire (20) at the front end of the insert (10) so that the traction wire (20) at the front end of the insert (10) forms an open wire-fixing cavity (21).

2. The lifting device according to claim 1, characterized in that, The insert (10) is cylindrical; The through hole (11) extends through the insert (10) along the axial direction of the insert (10).

3. The lifting device according to claim 1, characterized in that, The insert (10) is cylindrical; The through hole (11) extends radially through the insert (10).

4. The thread lifter according to claim 1, characterized in that, The insertion component (10) includes: a puncture needle (12) and a metal wire (13); The puncture needle (12) is provided with a perforation (14) extending from the front end to the rear end. The metal wire (13) is folded in half and twisted into a double-strand twisted structure, and the front end of the double-strand twisted structure forms the through hole (11). The double-strand twisted structure extends into the perforation (14); The traction line (20) is attached to the outside of the puncture needle (12).

5. The thread lifter according to claim 4, characterized in that, The metal wire (13) is an orthodontic wire.

6. The thread lifter according to claim 4, characterized in that, The traction suture (20) is a surgical suture.

7. The thread lifter according to claim 4, characterized in that, The front end of the puncture needle (12) has a rounded transition structure.

8. The lifting device according to claim 1, characterized in that, The manipulator is tweezers.

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