Connecting wire tightening device for orthopedic surgery

Abstract

This invention comprises a main body and a secondary body. The main body has a mating recess, a mating guide groove, a main magnetic suction part, a limiting protrusion, a main channel part, and a driven part. The secondary body has a mating surface, a mating guide protrusion, a secondary magnetic suction part, a limiting recess, and a secondary channel part. The main body and the secondary body are separable so that the two ends of a steel wire are respectively threaded through the main channel part and the secondary channel part. The mating guide protrusion corresponds to the mating guide groove, the mating surface corresponds to the mating recess, the secondary magnetic suction part corresponds to the main magnetic suction part, and the limiting protrusion corresponds to the limiting recess, making it difficult for the main body and the secondary body to detach after being combined as one unit. The driven part can rotate to tightly wind the two ends of the steel wire. This design combines the advantages of easy threading without breaking the wire, a separate design that improves the convenience of threading the wire, easy assembly and resistance to detachment, a wing design for easy handling and operation, and a separate design that makes it easy to hold and apply force when pre-tensioned.

Description

Jointed wire tightening device for orthopedic surgery The present invention relates to a joint type steel wire tightening device for orthopedic surgery, and more particularly to a joint type steel wire tightening device for orthopedic surgery that is easy to thread without pinching the steel wire, has a separate design to improve the convenience of threading the steel wire, is easy to combine and not easy to separate, has a wing design for easy holding and operation, and has a separate design for easy holding and force application when pre-tightened. 13 , conventional orthopedic surgery generally uses at least one bone screw 93 in conjunction with a wire 91 to assist in fixing the broken bone. After the steel wire 91 is wound, two steel wire ends 911 are exposed, and the two steel wire ends 911 must be tightened. Usually, the two wire ends 911 are first fixed with a wire auxiliary fixing member 94, and then rotated with a handheld electric rotating device 92 to complete the tightening operation. However, in reality, the auxiliary steel wire fixing member 94 is very small, and the two steel wire ends 911 are difficult to pass through. The passing process may be very time-consuming, which may delay the progress of the operation. Of course, the wire 91 can also be wrapped with a clamp 95 (having two wire holes 951) (see Figures 14 and 15). The disadvantage is that the two wire ends 911 must be passed through the two wire holes 951 at a nearly vertical angle. In addition to being difficult to thread, the wire 91 is easily cut by the clamp 95 during the wrapping process. As a result, the originally wrapped wire 91 must be removed and a new wire 91 must be inserted and wrapped again, which is very troublesome and delays the original operation time. Furthermore, assuming that the wire 91 has been initially wrapped around a bone three times, with the two wire ends 911 exposed, it is generally advisable to pull the two wire ends 911 outwards before tightening them. This will speed up the subsequent tightening process. However, if the wires are directly pulled outwards with both hands, they are prone to slipping and are difficult to tighten effectively. In view of this, it is necessary to develop a technology that can solve the above-mentioned conventional shortcomings. The present invention aims to provide a joint-type wire tightening device for orthopedic surgery that combines the advantages of being easy to thread without pinching the wire, a separate design that improves the convenience of wire threading, easy to connect and difficult to disengage, a wing design that facilitates handling, and a separate design that facilitates easy handling and application of force during pre-tensioning. In particular, the present invention aims to solve the problem that conventional auxiliary wire fasteners are very small, making it difficult to thread the two wire ends, which can be very time-consuming. Furthermore, when the wire is wrapped with a clamp, not only is it difficult to thread due to the vertical angle, but the wire is also easily pinched off by the clamp during the tightening process, requiring the previously wrapped wire to be removed, reinserted, and wrapped with a new wire, which is very troublesome and delays the original surgical time. The technical means to solve the above problems is to provide a joint type wire tightening device for orthopedic surgery, which includes: A main body, comprising a main body portion, a joint recess, a joint guide groove portion, at least one main body magnetic portion, a limiting protrusion, a main body channel portion and a driven portion; the main body portion has a main body first end face, a main body second end face and a main body side end face; the main body side end face is between the main body first end face and the main body second end face, the joint recess is recessed in the main body portion, and is between the main body first end face and the main body second end face, and is opposite to the main body side end face; the joint guide groove portion and the at least one main body magnetic portion are respectively recessed in the joint recess, the joint guide groove portion is adjacent to the main body first end face, and the at least one main body magnetic portion is opposite to the main body The side end face of the body; the limiting protrusion is extended from the second end face of the main body in the opposite direction of the side end face of the main body; the main body channel portion passes through the main body portion, and the main body channel portion has a main body inlet and a main body outlet, the main body inlet is located at the second end face of the main body, and the main body outlet is located at the side end face of the main body, and there is a first angle between the main body inlet and the main body outlet, and the first angle is 135±30 degrees, the main body inlet is for one of the two steel wire ends of a steel wire to pass through the main body channel portion, the main body outlet is for one of the two steel wire ends to extend out of the main body channel portion, and the driven portion extends outward from the first end face of the main body; and The guide groove is formed on the second end surface of the auxiliary body, and the guide groove is formed on the second end surface of the auxiliary body, and the guide groove is formed on the second end surface of the auxiliary body. The face portion is coupled to the coupling recess, the at least one auxiliary magnetic portion is magnetically coupled to the at least one main magnetic portion, the limiting protrusion is used to limit and block the limiting recess, so that the main part and the auxiliary part are not easily separated after being combined into one, the auxiliary channel portion passes through the auxiliary part, and the auxiliary channel portion has an auxiliary entrance and an auxiliary exit, the auxiliary entrance is located on the second end face of the auxiliary part, and the auxiliary exit is located on the side end face of the auxiliary part, and a second angle is formed between the auxiliary entrance and the auxiliary exit, and the second angle is 135±30 degrees, the auxiliary entrance is provided for the other of the two steel wire ends of the steel wire to pass through the auxiliary channel portion, and the auxiliary exit is provided for the other of the two steel wire ends to extend out of the auxiliary channel portion; Among them, the main body and the auxiliary body have a relatively separated position and a relatively combined position. The relatively separated position is convenient for the joint type steel wire tightening device used for orthopedic surgery to pass through the two steel wire ends, and the relative combined position is for the joint type steel wire tightening device used for orthopedic surgery to tighten the two steel wire ends. The above-mentioned objects and advantages of the present invention can be more clearly understood from the following detailed description of the selected embodiments and the accompanying drawings. The present invention is described in detail with reference to the following embodiments and accompanying drawings: Referring to Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10A, 10B, and 11, the present invention is a joint-type wire tightening device for orthopedic surgery, comprising: A main body 10 comprises a main body portion 11, a coupling recess 12, a coupling guide groove 13, at least one main body magnetic portion 14, a limiting protrusion 15, a main body channel portion 16, and a driven portion 17. The main body portion 11 has a main body first end surface 111, a main body second end surface 112, and a main body side end surface 113; the main body side end surface 113 is located between the main body first end surface 111 and the main body second end surface 112. The coupling recess 12 is recessed in the main body portion 11, between the main body first end surface 111 and the main body second end surface 112, and opposite to the main body side end surface 113. The coupling guide groove 13 and the at least one main body magnetic portion 14 are respectively recessed in the coupling recess 12, the coupling guide groove 13 being adjacent to the main body first end surface 111, and the at least one main body magnetic portion 14 being opposite to the main body side end surface 113. The limiting protrusion 15 extends from the second end surface 112 of the main body in the opposite direction of the side end surface 113 of the main body; the main body channel portion 16 passes through the main body portion 11, and the main body channel portion 16 has a main body inlet 161 and a main body outlet 162, the main body inlet 161 is located on the second end surface 112 of the main body, and the main body outlet 162 is located on the side end surface 113, and there is a first angle θ1 between the main body inlet 161 and the main body outlet 162, and the first angle θ1 is 135±30 degrees. The main body inlet 161 is for one of the two steel wire ends 911 of a steel wire 91 to pass through the main body channel portion 16, and the main body outlet 162 is for one of the two steel wire ends 911 to extend out of the main body channel portion 16; the driven portion 17 extends outward from the first end surface 111 of the main body. A subassembly 20 comprises a subassembly portion 21, a joint surface portion 22, a joint guide protrusion 23, at least one subassembly magnetic portion 24, a limiting recess 25, and a subassembly channel portion 26. The subassembly portion 21 comprises a first subassembly end surface 211, a second subassembly end surface 212, and a side subassembly end surface 213; the side subassembly end surface 213 is located between the first subassembly end surface 211 and the second subassembly end surface 212. The joint surface portion 22 is located between the first subassembly end surface 211 and the second subassembly end surface 212 and faces away from the side subassembly end surface 213. The joint guide protrusion 23 extends from the first subassembly end surface 211, the at least one subassembly magnetic portion 24 is recessed in the joint surface portion 22, and the limiting recess 25 is recessed in the second subassembly end surface 212. The joint guide protrusion 23 is used for the auxiliary body 21 to be inserted into the joint guide groove 13, and is used to guide the joint surface portion 22 to be combined with the joint recess 12. The at least one auxiliary magnetic attraction portion 24 is magnetically engaged with the at least one main magnetic attraction portion 14. The limiting protrusion 15 is used to limit and block the limiting recess 25, so that the main part 10 and the auxiliary body part 20 are not easily separated after being combined into one. The auxiliary body channel portion 26 passes through the auxiliary body portion 21, and the auxiliary body channel portion 26 has an auxiliary body inlet 261 and an auxiliary body outlet 26. 62, the auxiliary body inlet 261 is located at the second end surface 212 of the auxiliary body, and the auxiliary body outlet 262 is located at the side end surface 213 of the auxiliary body, and there is a second angle θ2 between the auxiliary body inlet 261 and the auxiliary body outlet 262, and the second angle θ2 is 135±30 degrees. The auxiliary body inlet 261 is provided for the other of the two steel wire ends 911 of the steel wire 91 to pass through the auxiliary body channel portion 26, and the auxiliary body outlet 262 is provided for the other of the two steel wire ends 911 to extend out of the auxiliary body channel portion 26. Among them, the main body 10 and the auxiliary body 20 have a relative separation position P1 (as shown in Figure 10A) and a relative connection position P2 (refer to Figure 10B). The relative separation position P1 is convenient for the joint type wire tightening device used for orthopedic surgery to pass through the two wire ends 911 (refer to Figure 12A), and the relative connection position P2 is for the joint type wire tightening device used for orthopedic surgery to tighten the two wire ends 911 (refer to Figures 10B, 11 and 12B). In practice, both the main body 10 and the auxiliary body 20 can be 3D printed as an integrated structure. 9 , the main body magnetic attraction portion 14 can be a magnet or a magnetically attracted object. The auxiliary magnetic attraction portion 24 corresponds to the main magnetic attraction portion 14 and can be a magnetically attracted object or a magnet. At least one of the main magnetic attraction portion 14 and the auxiliary magnetic attraction portion 24 is a magnet. The main channel portion 16 and the auxiliary channel portion 26 may both be arc-shaped channels, which can reduce the risk of the steel wire 91 slipping during the winding process of the steel wire 91 . The main body 10 may further include at least one pair of main body wings 18 . The at least one pair of main body wings 18 facilitates holding and operating the main body 10 . The auxiliary body 20 may further include at least one pair of auxiliary body wings 27 . The at least one pair of auxiliary body wings 27 facilitates holding and operating the auxiliary body 20 . The driven portion 17 can be connected to a handheld electric rotating device 92 (see Figures 2, 6, 7 and 9). The handheld electric rotating device 92 can be a conventional electric drill structure. When the handheld electric rotating device 92 is activated, the driven portion 17 can be controlled to rotate, and the driven portion 17 can be used to rotate the joint type steel wire tightening device for orthopedic surgery, thereby tightening the two steel wire ends 911 relative to each other. Furthermore, referring to FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 , the driven portion 17 may have an axial positioning recess 171 , which may improve the stability of the driven portion 17 in connection with the handheld electric rotating device 92 . The key points of this case are the following two points: [a] Separate type facilitates wire threading. In this embodiment, the pre-separated main body 10 (e.g., as shown in FIG. 1 , located at a first position PA) and the auxiliary body 20 (e.g., as shown in FIG. 1 , located at a second position PB) can be held separately. The two wire ends 911 of the wire 91 are respectively threaded through the main body channel portion 16 and the auxiliary body channel portion 26 in a convenient working space (or posture). The main body 10 and the auxiliary body 20 are then brought into relative alignment, with the engaging guide protrusion 23 engaging the engaging guide groove portion 13 to guide the engaging surface portion 22 to engage with the engaging recess 12. The auxiliary body magnetic portion 24 is then magnetically engaged with the main body magnetic portion 14. The limiting protrusion 15 blocks the limiting recess 25, so that the main body 10 and the auxiliary body 20 are not easily separated after being integrated. [b] Easy to combine and difficult to separate. When the main body 10 and the auxiliary body 20 are relatively close together, the joint guide protrusion 23 can be inserted into the joint guide groove 13 to guide the joint surface portion 22 to be combined with the joint recess 12. The design of the joint guide groove 13 is easy to combine. The auxiliary magnetic part 24 is magnetically guided to join with the main magnetic part 14, which can enhance the strength of the combination. The limiting protrusion 15 guides and blocks the limiting recess 25 with an inclined surface to ensure that it is not easy to separate after the combination. The aforementioned multiple mechanisms make it easy for the main body 10 and the auxiliary body 20 to be combined into one, and difficult to separate after the combination. The advantages and effects of this case can be summarized as follows: [1] It is easy to thread without pinching the wire. Regarding the main body: there is a first angle (135±30 degrees) between the main body inlet and the main body outlet, so that the main body channel portion is non-straight (at least has an arc), the main body inlet is for one of the two steel wire ends to be "straightly" inserted into the main body channel portion, and the main body outlet is for one of the two steel wire ends to be "obliquely" extended out of the main body channel portion. Regarding the auxiliary body portion: there is a second angle (135±30 degrees) between the auxiliary body inlet and the auxiliary body outlet, so that the auxiliary body channel portion is non-straight (at least has an arc), and the auxiliary body inlet is for the other "straight" of the two steel wire ends to be inserted into the auxiliary body channel portion, and the auxiliary body outlet is for the other "oblique" of the two steel wire ends to extend out of the auxiliary body channel portion. That is, it is very convenient to insert it in a straight line and extend obliquely toward both sides of the joint wire tightening device for orthopedic surgery, eliminating the risk of being pinched during the winding and tightening process. Therefore, it is easy to insert and will not be pinched. [2] The split design improves the convenience of threading the wire. In this case, the main body (for example, in the first position) and the auxiliary body (for example, in the second position) can be pre-separated into two independent entities. That is, the two ends of the wire can be respectively threaded through the main body channel and the auxiliary body channel according to the individual's habitual working space (or posture), and then the main body and the auxiliary body can be relatively combined to wind the wire, which greatly improves the convenience of operation. Therefore, the split design improves the convenience of threading the wire. [3] Easy to combine and difficult to separate. When the main body and the auxiliary body are relatively close together, the joint guide protrusion can be inserted into the joint guide groove to guide the joint surface to be combined with the joint recess. The design of the joint guide groove is easy to combine. The auxiliary magnetic part can be magnetically guided to join the main magnetic part, thereby strengthening the strength of the combination. The limiting protrusion can guide and stop the limiting recess at an angle, which can ensure that it is not easy to separate after the combination. This makes it easy for the main body and the auxiliary body to be combined into one, and difficult to separate after the combination. Therefore, it is easy to combine and difficult to separate. [4] The wing design facilitates handling and operation. The main body may further include at least one pair of main body wings; the auxiliary body may further include at least one pair of auxiliary body wings. The main body wings and the auxiliary body wings are used together to improve the convenience of separating, combining, and threading the wire of the joint type wire tightening device for orthopedic surgery. Therefore, the wing design facilitates handling and operation. [5] The split design facilitates easy holding and application of force during pre-tensioning. Since the main part and the auxiliary part of this case are in a separated state, they will first pass through the two ends of the steel wire respectively, which makes it convenient to hold them with both hands to perform the pre-tensioning action. After tightening the steel wire, the main part and the auxiliary part can be combined to speed up the subsequent tightening operation. Therefore, the split design facilitates easy holding and application of force during pre-tensioning. The above is merely a detailed description of the present invention through preferred embodiments. Any simple modifications and changes made to the embodiments do not depart from the spirit and scope of the present invention. 10: Main body 11: Main body portion 111: Main body first end surface 112: Main body second end surface 113: Main body side end surface 12: Engagement recess 13: Engagement guide groove portion 14: Main body magnetic attraction portion 15: Limiting protrusion 16: Main body channel portion 161: Main body inlet 162: Main body outlet 17: Driven portion 171: Axial positioning recess 18: Main body wing 20: Auxiliary body 21: Auxiliary body portion 211: Auxiliary body first end surface 212: Auxiliary body second end surface 213: Auxiliary body side end surface 22: Engagement surface 23: Engagement guide protrusion 24: Secondary body magnetic attraction 25: Limiting recess 26: Secondary body channel 261: Secondary body entrance 262: Secondary body exit 27: Secondary body wing 91: Steel wire 911: Steel wire end 92: Handheld electric rotation device 93: Bone screw 94: Steel wire auxiliary fixator 95: Clamp 951: Steel wire hole θ1: First angle θ2: Second angle P1: Relative separation position P2: Relative engagement position PA: First position PB: Second position FIG1 is an exploded schematic diagram of the first embodiment of the present invention. Figure 2 is a schematic diagram of the first angle of the combination of Figure 1. Figure 3 is a schematic diagram of the second angle after the combination of Figure 1. FIG4 is a schematic diagram of an exploded view of the second embodiment of the present invention. Figure 5 is a schematic diagram of the first angle of the combination of Figure 4. Figure 6 is a schematic diagram of the second angle after the combination of Figure 4. Figure 7 is a schematic diagram of the third angle after the combination of Figure 4. Figure 8 is a schematic diagram of the fourth angle after the combination of Figure 4. Figure 9 is a cross-sectional view of the IX-IX position of Figure 8. FIG10A is a schematic diagram showing the main body and the auxiliary body of the present invention in a relatively separated position. FIG10B is a schematic diagram showing a relative connection position between the main body and the auxiliary body of the present invention. FIG11 is a schematic diagram of the present invention in which two ends of steel wires are tightly wound relative to each other. Figure 12A is a schematic diagram of the two ends of the steel wire used in orthopedic surgery before being twisted together. Figure 12B is a schematic diagram of two ends of a steel wire being twisted together for use in orthopedic surgery. FIG13 is a schematic diagram of a conventional wire auxiliary fixing member in conjunction with a winding wire. Figure 14 is a schematic diagram of a conventional clamp used in conjunction with a winding wire. FIG15 is an enlarged schematic diagram of a portion of the structure of FIG14. 10: Main body 11: Main body 111: First end face of the main body 112: Second end face of the main body 113: side end face of the main body 12:Joining recess 13: Engagement guide groove 14: Main magnetic part 15: Limiting convex part 16: Main channel 161:Main entrance 162: Main Exit 17: driven part 18: Main body wing 20: auxiliary body parts 21: Secondary body 211: First end surface of auxiliary body 212: Second end face of auxiliary body 213: Side end surface of auxiliary body 22: Joint surface portion 23: Engagement guide protrusion 24: Auxiliary magnetic part 25: Limiting recess 26: Secondary body channel 261: Accessory body entrance 262: Secondary body exit 27: Secondary body wing 91: Steel Wire 911: Wire end 92:Handheld electric rotating device

Claims

1. A connecting wire tightening device for orthopedic surgery, comprising: A main body component comprises a main body portion, a mating recess, a mating guide groove, at least one main body magnetic attraction portion, a limiting protrusion, a main body channel portion, and a driven portion. The main body portion has a first main body end face, a second main body end face, and a side main body end face. The side main body end face is located between the first main body end face and the second main body end face. The mating recess is recessed into the main body portion, located between the first main body end face and the second main body end face, and faces away from the side main body end face. The mating guide groove and the at least one main body magnetic attraction portion are respectively recessed into the mating recess. The mating guide groove is adjacent to the first main body end face, and the at least one main body magnetic attraction portion faces away from the side main body end face. The limiting protrusion... The protrusion extends from the second end face of the main body in the opposite direction to the side end face of the main body; the main body channel penetrates the main body and has a main body inlet and a main body outlet. The main body inlet is located on the second end face of the main body, and the main body outlet is located on the side end face of the main body. A first angle of 135±30 degrees is formed between the main body inlet and the main body outlet. One of the two ends of a steel wire passes through the main body channel, and one of the two ends of the steel wire extends out of the main body channel. The driven part extends outward from the first end face of the main body; and a secondary body has a secondary body and a connecting part. The device comprises a surface portion, a connecting guide protrusion, at least one magnetic attachment portion, a limiting recess, and a device channel portion. The device portion has a first end face, a second end face, and a side end face. The side end face is located between the first and second end faces. The connecting surface portion is located between the first and second end faces and faces away from the side end face. The connecting guide protrusion extends from the first end face. The at least one magnetic attachment portion is recessed in the connecting surface portion. The limiting recess is recessed in the second end face. The connecting guide protrusion allows the device portion to engage with the connecting guide groove and guides the connecting surface portion to engage with the connecting surface portion. The at least one secondary magnetic attraction part magnetically engages with the at least one main magnetic attraction part. The limiting protrusion limits and stops the limiting recess, making it difficult for the main body and the secondary body to detach after they are combined into one piece. The secondary body channel extends through the secondary body and has a secondary body inlet and a secondary body outlet. The secondary body inlet is located on the second end face of the secondary body, and the secondary body outlet is located on the side end face of the secondary body. There is a second angle between the secondary body inlet and the secondary body outlet, which is 135±30 degrees. The secondary body inlet allows one of the two ends of the steel wire to pass through the secondary body channel, and the secondary body outlet allows one of the two ends of the steel wire to extend out of the secondary body channel.The main body and the auxiliary body have a relatively separate position and a relatively joined position. The relatively separate position facilitates the insertion of the two wire ends by the orthopedic surgical wire tightening device, while the relatively joined position allows the orthopedic surgical wire tightening device to tightly wrap the two wire ends.

2. The connecting wire tightening device for orthopedic surgery as described in claim 1, wherein: The main magnetic attraction part is either a magnet or a magnetically attracted object; the secondary magnetic attraction part is corresponding to the main magnetic attraction part and is either a magnetically attracted object or a magnet; and at least one of the main magnetic attraction part and the secondary magnetic attraction part is a magnet.

3. The connecting wire tightening device for orthopedic surgery as described in claim 1, wherein: The main passageway is an arc-shaped passageway; The channel of the sub-body is an arc-shaped channel.

4. The connecting wire tightening device for orthopedic surgery as described in claim 1, wherein: The main body system has at least one pair of main body flaps; and the secondary body system has at least one pair of secondary body flaps.

5. The connecting wire tightening device for orthopedic surgery as described in claim 1, wherein: The driven part is used to connect to a handheld electric rotating device; and the handheld electric rotating device is used to control the rotation of the driven part, and can rotate the orthopedic surgical coupling wire tightening device through the driven part, thereby tightly winding the ends of the two wires together.

6. The connecting wire tightening device for orthopedic surgery as described in claim 5, wherein, This handheld electric rotary device is a drill-like structure.

7. The connecting wire tightening device for orthopedic surgery as described in claim 5, wherein: The driven part also has an axial positioning recess; and the axial positioning recess is used to improve the stability of the driven part in connection with the handheld electric rotary device.

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