CN215273243U - A kind of wire tightening device for fixing fractures - Google Patents
A kind of wire tightening device for fixing fractures Download PDFInfo
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- CN215273243U CN215273243U CN202121716050.1U CN202121716050U CN215273243U CN 215273243 U CN215273243 U CN 215273243U CN 202121716050 U CN202121716050 U CN 202121716050U CN 215273243 U CN215273243 U CN 215273243U
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Abstract
本实用新型提供一种固定骨折用钢丝收紧装置，包括导向件、滑板、抽拉结构和限位结构；其中，导向件具有导向槽；滑板可滑动地安装在导向槽内部，一端适于固定钢丝；抽拉结构用于拉动滑板移动；限位结构用于将滑板限位在导向件上，使钢丝保持收紧。本实用新型的收紧装置，使用时先将钢丝的两端固定在滑板上，然后将导向件的一端抵靠在骨骼上，操作抽拉结构拉动滑板相对于导向件移动，此时滑板向着远离人体的方向移动，随着滑板的逐渐移动，钢丝逐渐被收紧；限位结构将滑板限位固定在导向件上，从而使钢丝保持收紧。本实用新型的收紧装置，借助限位结构，能够使保持住已被拉紧的钢丝，而且抽拉结构可以和限位结构相配合，分多次充分拉紧钢丝。
The utility model provides a steel wire tightening device for fixing fractures, comprising a guide piece, a slide plate, a pulling structure and a limit structure; wherein, the guide piece has a guide groove; the slide plate is slidably installed inside the guide groove, and one end is suitable for fixing Steel wire; the pull-out structure is used to pull the slide plate to move; the limit structure is used to limit the slide plate on the guide to keep the steel wire tightened. The tightening device of the present utility model, when in use, firstly fixes both ends of the steel wire on the slide plate, and then abuts one end of the guide member against the bone, and operates the pulling structure to pull the slide plate to move relative to the guide member. At this time, the slide plate moves away from the guide member. The direction of the human body moves, and the steel wire is gradually tightened with the gradual movement of the slide plate; the limit structure fixes the slide plate on the guide, so that the steel wire is kept tightened. The tightening device of the utility model can keep the tensioned steel wire by means of the limiting structure, and the pulling structure can cooperate with the limiting structure to fully tighten the steel wire in multiple times.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to steel wire tightening means for fixed fracture.
Background
Hip arthroplasty is currently the most effective method for clinically treating severe arthropathy, femoral neck fracture in the elderly and fracture between partial femoral tuberosities. Is widely applied at home and abroad as a mature treatment means. The widespread use of hip arthroplasty also means that the number of patients requiring hip revision surgery is increasing.
The hip revision surgery refers to the surgery that the patient needs to revise the prosthesis after the artificial hip replacement due to the fracture around the prosthesis, the loosening of the prosthesis, the fracture of the prosthesis, the dislocation of the prosthesis and the like. In the hip joint revision surgery, for some patients with the conditions of abnormal hip joint anatomy, serious acetabulum invagination, congenital hip joint dysplasia accompanied with high dislocation, abductor muscle relaxation and the like, a great tuberosity lengthening osteotomy is needed to be firstly performed, an old prosthesis handle is taken out, a new prosthesis handle is put in after the osteotomy is cleaned, and after the osteotomy part is reset, the new prosthesis handle and the original bone body are bound and fixed together by using steel wires. For some patients with periprosthetic fractures, the fracture site is reduced and then fixed using steel wire.
At present, the steel wire is often tightened and screwed and fixed by using forceps in clinic, however, due to the influence of soft tissues around the femur and the fact that the steel wire has certain elasticity, when the steel wire is used for fixing, the operation force of a doctor is small, the operation cannot be continued and stabilized, and the like, the steel wire is difficult to tighten. If the steel wire can not be tightened in place at the beginning, later when the steel wire is screwed and fixed, the steel wire is difficult to tighten again, and the situation that the steel wire is screwed off at the screwed part and can not be tightened by the fixed position often occurs. Once this occurs, the steel wire needs to be reused for re-fixing. At present, the steel wire is tightened up and fixed manually by using a pliers in the operation, so that the time and the labor are wasted, the operation efficiency is low, and the operation effect is general.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming and using the pliers to tighten up the steel wire and fix among the prior art, and it is difficult to tighten up often to appear the steel wire, or need change after the steel wire is twisted off and fix again to waste time and energy, the inefficiency of operation and the poor technical defect of operation effect, thereby provide one kind and can be used for tightening up the steel wire tightening means for fixed fracture of steel wire and fixed.
Therefore, the utility model provides a steel wire tightening means for fixed fracture, include:
a guide having a guide groove;
the sliding plate is slidably arranged in the guide groove, and one end of the sliding plate is suitable for fixing a steel wire; the end part of the sliding plate is provided with at least 2 steel wire through holes, threaded holes are communicated with the steel wire through holes, and the sliding plate also comprises a fixing bolt which can be in threaded connection with the threaded holes;
the drawing structure is suitable for drawing the sliding plate to slide along the guide groove relative to the guide piece;
and the limiting structure is suitable for limiting and fixing the sliding plate on the guide piece.
As a preferred solution, the drawing structure comprises:
the fixed handle is fixedly arranged below the guide piece;
a movable handle rotatably mounted above the guide;
the pull rod is rotatably arranged on the movable handle and is connected with the sliding plate through a traction structure.
As a preferable aspect, the pulling structure includes:
the traction hook is arranged on the pull rod;
and the sawtooth structure is formed at the top of the sliding plate.
As a preferable mode, the tie bar includes:
one end of the first pull rod is provided with the pulling hook;
one end of the second pull rod is connected with the other end of the first pull rod;
the rotating shaft hole is formed in the joint of the first pull rod and the second pull rod;
the elastic sheet is bent in an arc shape, one end of the elastic sheet is connected with the outer side of one end of the second pull rod, which is far away from the rotating shaft hole, and the other end of the elastic sheet is abutted against the movable handle.
Preferably, the movable handle has a U-shaped structure, and the ends of two side plates forming the U-shaped structure are rotatably connected with the guide piece; the pull rod is rotatably arranged inside the U-shaped structure through a rotating shaft arranged on the inner side of the U-shaped structure.
As a preferred scheme, limit structure includes:
the fixed block is fixedly arranged on the guide piece and arranged across the upper opening of the guide groove;
and one end of the arc-shaped limiting piece is connected with the fixing block, and the other end of the arc-shaped limiting piece is suitable for abutting against the sawtooth structure.
As a preferred scheme, limit structure still includes:
the long through holes are arranged on the guide pieces in pairs and oppositely;
and the releasing rod is slidably arranged in the long through hole and can push the arc-shaped limiting sheet to be released from the connection with the sawtooth structure.
As a preferable scheme, the end part of the sliding plate is provided with at least 2 steel wire through holes, threaded holes are communicated with the steel wire through holes, and the sliding plate further comprises a fixing bolt which can be in threaded connection with the threaded holes;
preferably, the steel wire perforation is arranged to penetrate through the sliding plate along the axial direction of the sliding plate.
As a preferable scheme, the screw structure further comprises a screw structure, and the screw structure comprises:
the screwing block is arranged at the end part of the guide piece through a movable mounting structure and can rotate relative to the guide piece;
preferably, one end of the screwing block facing the guide piece is provided with an arc-shaped inner wall, one end of the guide piece facing the screwing block is provided with an arc-shaped outer wall, and the guide piece and the screwing block are rotatably connected through the arc-shaped outer wall and the arc-shaped inner wall;
preferably, two limiting columns are oppositely arranged at one end of the screwing block, which is far away from the guide piece, and the middle parts of the limiting columns are cylindrical or the side surfaces of the limiting columns are inwards in a cylindrical shape with an arc-shaped recess;
preferably, the limiting column is rotatably mounted on the screwing block.
As a preferable aspect, the movable mounting structure includes:
the sliding frame is slidably sleeved on the guide piece;
the limiting block is fixedly arranged on the guide piece and used for limiting the position of the sliding frame;
at least two side elastic sheets, one end of each side elastic sheet is fixedly connected with the sliding frame, and the other end of each side elastic sheet is provided with a bending clamping structure;
the arc-shaped bulge is formed on the outer wall of the screwing piece;
the recess, the shaping is in revolve twisting on the piece outer wall, and be located the protruding rear side of arc is suitable for buckle the screens structure and cross the protruding back card of arc is gone into.
The technical scheme provided by the utility model, following advantage has:
1. the utility model relates to a steel wire tightening device for fixing fracture, which comprises a guide piece, a sliding plate, a drawing structure and a limiting structure; wherein the guide member has a guide groove; the sliding plate is slidably arranged in the guide groove, and one end of the sliding plate is suitable for fixing the steel wire; the drawing structure is used for drawing the sliding plate to move relative to the guide piece so as to tighten the steel wire; the limiting structure is used for limiting and fixing the sliding plate on the guide piece, so that the steel wire is kept tightened. The utility model discloses a steel wire tightening means for fixed fracture fixes the both ends of steel wire on the slide earlier during the use, then supports the one end of guide on the skeleton, and operation pull structure pulling slide moves for the guide, and the slide moves towards the direction of keeping away from the human body this moment, and along with the gradual movement of slide, the steel wire is tightened up gradually; the limiting structure limits and fixes the sliding plate on the guide piece, so that the steel wire is kept tightened. The steel wire tightening device for fixing fracture of the utility model has the advantages that with the help of the drawing structure, the force for drawing the steel wire is larger, and the steel wire is easier to tighten; by means of the limiting structure, the tensioned steel wire can be kept, and the drawing structure can be matched with the limiting structure to sufficiently tension the steel wire for multiple times.
2. The utility model discloses a steel wire tightening device for fixing fracture, the drawing structure comprises a fixed handle, a movable handle and a pull rod, wherein the fixed handle is fixedly arranged below the guide piece, the movable handle is rotatably arranged below the guide piece, the pull rod is rotatably arranged on the movable handle and is connected with the sliding plate through a drawing structure; through pushing down movable handle, pulling pull rod, and then remove through the relative guide of tractive structure pulling slide, it is more laborsaving, can be with the tighter that the steel wire was drawn.
3. The steel wire tightening device for fixing fracture of the utility model has the advantages that the traction structure comprises the traction hook and the sawtooth structure, the traction hook of the pull rod is placed downwards on the sawtooth structure, so that the stable connection can be realized, and the connection can be released by lifting the traction hook upwards; when the pulling hook is connected with the sawtooth structure, the movable handle is pressed, and the sliding plate can be pulled to move relative to the guide piece through the pulling rod; after the sliding plate reaches the set position by pressing, the sliding plate is fixed by the limiting structure in a limiting mode, so that the traction hook can be lifted, the pull rod is lifted upwards, the traction hook is placed on a sawtooth structure closer to one side of a human body, the movable handle is pressed again, and the steel wire is tightened again on the basis of first pressing and tightening.
4. The utility model discloses a steel wire tightening device for fixing fracture, the pull rod comprises a first pull rod, a second pull rod, a rotating shaft hole arranged at the joint of the first pull rod and the second pull rod, and a spring plate, wherein the spring plate is bent in an arc shape, one end of the spring plate is connected with the outer end of the second pull rod, which is far away from one side of the rotating shaft hole, and the other end of the spring plate is propped against a movable handle; the advantage that so set up lies in, under the spring action of shell fragment, the tractive hook of first pull rod is automatic to be leaned on the slide, is connected with the sawtooth structure. When the connection between the traction hook and the sawtooth structure needs to be released, the first pull rod is lifted up to overcome the elastic force of the elastic sheet, and the operation is more convenient.
5. The utility model discloses a steel wire tightening device for fixing fracture, the limiting structure comprises a fixing block and an arc limiting sheet; wherein the fixed block is fixedly arranged on the guide piece and arranged across the upper opening of the guide groove; one end of the arc-shaped limiting sheet is connected with the fixing block, and the other end of the arc-shaped limiting sheet is abutted against the sawtooth structure; the arrangement has the advantages that when the drawing structure draws the sliding plate to move relative to the guide piece, the arc-shaped limiting sheet slides over the gentle surface of the sawtooth structure and falls on the vertical surface, and when the drawing structure loses the pulling force on the sliding plate, the end part of the arc-shaped limiting sheet abuts against the vertical surface of the sawtooth structure, so that the sliding plate is prevented from retracting; just because this limit structure's setting, just make the utility model discloses a fixed steel wire tightening means for fracture can divide and continuously tighten up the steel wire many times.
6. The utility model discloses a steel wire tightening device for fixing fracture, the limiting structure also comprises a long-strip through hole and a releasing rod, wherein the long-strip through hole is arranged on the guide piece in pairs and relatively, and the releasing rod can be installed inside the long-strip through hole in a sliding way; in the initial state, the releasing rod is positioned at the upstream of the arc-shaped limiting sheet, and does not apply force to the arc-shaped limiting sheet; when the arc-shaped limiting piece needs to be lifted up to remove the limiting fixation of the arc-shaped limiting piece on the sliding plate, the releasing rod is pushed by external force to move towards the arc-shaped limiting piece, the releasing rod pushes the arc-shaped limiting piece to be lifted up, and the limiting fixation of the arc-shaped limiting piece on the sliding plate can be removed.
7. The utility model discloses a steel wire tightening means for fixed fracture, the tip of slide are equipped with 2 at least steel wire and perforate, are linked together with the steel wire perforation and are provided with the screw hole to and fixing bolt penetrates the steel wire and perforates the back, uses fixing bolt screw in screw hole, can fix the steel wire extrusion inside the steel wire perforation. Preferably, set up the steel wire perforation and run through the slide along the axial of slide, the steel wire can also be in the slide keep away from human one side and knot and fix.
8. The utility model discloses a steel wire tightening means for fixed fracture still twists the structure including twisting, and the steel wire twists the back, twists the piece and supports and lean on the human body soon, and the piece rotation is twisted relatively soon to the operation guide this moment, can twist the both ends of steel wire together, accomplishes the fixed of steel wire on human skeleton. Preferably, the end, far away from the guide piece, of the screwing block is relatively provided with two limiting columns, the middle of each limiting column is circular or the side surface of each limiting column is inwards in an arc-shaped sunken cylindrical shape, and the limiting columns can guide the steel wires to be tightened better. Preferably, the limiting column is rotatably mounted on the screwing block, and the steel wire can be better guided to be tightened by rotating the limiting column.
9. The utility model discloses a steel wire tightening device for fixing fracture, which is characterized in that a movable mounting structure for movably mounting a screwing block on a guide piece comprises a sliding frame, a limiting block, a side elastic sheet, and an arc-shaped bulge and a groove which are formed on the outer wall of the screwing block; when the steel wire is tightened, the screwing block is installed on the guide piece through the movable installation structure, and when the steel wire is fixed, the movable installation structure releases the fixation of the screwing block and the guide piece, so that the guide piece can rotate relative to the screwing block, and the fixation of the steel wire is realized.
Drawings
In order to more clearly illustrate the technical solutions in the prior art or the embodiments of the present invention, the drawings used in the description of the prior art or the embodiments are briefly introduced below.
Fig. 1 is a schematic view of the whole structure of the steel wire tightening device for fixing fracture.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Fig. 3 is another perspective view of fig. 1.
Fig. 4 is an enlarged schematic view of the structure of part B in fig. 3.
Fig. 5 is an enlarged schematic view of the structure of the portion C in fig. 3.
Fig. 6 is an explosion structure diagram of the steel wire tightening device for fixing fracture of the present invention.
Fig. 7 is an enlarged schematic view of the structure of portion D in fig. 6.
Reference numerals: 1. a guide member; 11. a guide groove; 12. a circular arc outer wall; 2. a slide plate; 21. perforating a steel wire; 22. fixing the bolt; 31. fixing a handle; 32. a movable handle; 33. a pull rod; 331. a first pull rod; 332. a second pull rod; 333. a rotating shaft hole; 334. a spring plate; 34. a rotating shaft; 35. a side plate; 41. pulling the hook; 42. a sawtooth structure; 51. a fixed block; 52. an arc-shaped limiting sheet; 53. a strip through hole; 54. a release lever; 6. screwing blocks; 61. a circular arc-shaped inner wall; 62. an arc-shaped bulge; 63. a groove; 64. a limiting column; 71. a sliding frame; 72. a limiting block; 73. a side spring plate; 74. buckling and clamping structure.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
Examples
The embodiment provides a steel wire tightening device for fixing fracture, which comprises a guide part 1, a sliding plate 2, a drawing structure and a limiting structure, as shown in fig. 1, 2 and 4;
wherein: the guide 1 has a guide groove 11 extending in the axial direction; the sliding plate 2 is slidably arranged in the guide groove 11, and one end of the sliding plate is suitable for fixing a steel wire; a drawing structure, which is suitable for drawing the sliding plate 2 to slide along the guide groove 11 relative to the guide member 1; and the limiting structure is suitable for limiting and fixing the sliding plate 2 on the guide part 1.
The principle of the steel wire tightening device for fixing fracture in the embodiment is that the sliding plate 2 is pulled through the drawing structure to move relative to the guide part 1, so that the steel wire is tensioned, the sliding plate 2 is fixed on the guide part 1 in a limiting mode through the limiting structure, and the steel wire is gradually pulled very tightly through the drawing structure and the limiting structure in multiple times.
Specifically, the pull structure includes: a fixed handle 31, a movable handle 32, and a pull rod 33; the fixed handle 31 is fixedly arranged below the guide piece 1; a movable handle 32 is rotatably mounted above the guide member 1; a pull rod 33 is rotatably mounted on the movable handle 32 and is connected to the slide plate 2 by a pulling structure.
The pulling structure comprises: a pulling hook 41 arranged on the pull rod 33; and a sawtooth structure 42 formed on the top of the sliding plate 2.
The traction structure is arranged to be matched with the traction hook 41 and the sawtooth structure 42, so that the connection and the separation are very easy; the stable connection can be realized by placing the pulling hook 41 of the pulling rod 33 downward on the sawtooth structure 42, and the connection can be released by lifting the pulling hook 41 upward.
When the pulling hook 41 is connected with the sawtooth structure 42, the sliding plate 2 can be pulled to move relative to the guide member 1 by pressing the movable handle 32 through the pull rod 33; after the push reaches the set position, the sliding plate 2 is limited and fixed by the limiting structure, so that the pulling hook 41 is lifted, the connection between the pulling hook 41 and the sawtooth structure 42 is released, and the sliding plate 2 cannot retract; at this time, the pulling hook 41 is lifted up, the pulling rod 33 is lifted up, the pulling hook 41 can be placed on the sawtooth structure 42 closer to the human body, the movable handle 32 is pressed again, and the steel wire is tightened again on the basis of the first pressing tightening.
Preferably, the pull rod 33 includes a first pull rod 331, a second pull rod 332 and an elastic sheet 334.
Wherein: the end part of the first pull rod 331 is provided with the traction hook 41; a second pull rod 332, one end of which is connected to the other end of the first pull rod 331; a rotation shaft hole 333 provided at a connection part of the first pull rod 331 and the second pull rod 332; the elastic sheet 334 is bent in an arc shape, one end of the elastic sheet is connected with the outer side of one end of the second pull rod 332 far away from the rotating shaft hole 333, and the other end of the elastic sheet abuts against the movable handle 32.
The advantage of this arrangement is that the pulling hook 41 provided at one end of the first pull rod 331 automatically abuts against the slide 2 and is connected to the sawtooth structure 42 under the elastic force of the elastic piece 334. In a natural state, the drawing hook 41 is abutted against the sliding plate 2 and is connected with the sawtooth structure 42; when the connection between the pulling hook 41 and the sawtooth structure 42 needs to be released, the first pulling rod 331 is lifted up to overcome the elastic force of the elastic sheet 334, so that the operation is more convenient.
The movable handle 32 has a U-shaped structure, and the ends of two side plates 35 forming the U-shaped structure are rotatably connected with the guide member 1; the pull rod 33 is rotatably mounted inside the U-shaped structure by a rotating shaft 34 mounted inside the U-shaped structure.
As shown in fig. 3-4, the limiting structure comprises: a fixed block 51 fixedly provided on the guide member 1 and disposed across an upper opening of the guide groove 11; and one end of the arc-shaped limiting sheet 52 is connected with the fixing block 51, and the other end of the arc-shaped limiting sheet is suitable for abutting against the sawtooth structure 42. The arrangement has the advantages that when the sliding plate 2 is pulled by the drawing structure to move relative to the guide 1, the arc-shaped limiting piece 52 slides over the lower surface of the sawtooth structure 42 and falls on the vertical surface, and when the pulling force of the drawing structure on the sliding plate 2 disappears, the end part of the arc-shaped limiting piece 52 abuts against the vertical surface of the sawtooth structure 42, so that the sliding plate 2 is prevented from retracting; just because the arrangement of this limit structure makes the steel wire tightening means for fixed fracture of this embodiment, can divide many times to continuously tighten up the steel wire.
Limit structure still includes: the long through holes 53 are arranged on the guide member 1 in pairs and oppositely; and a release rod 54 slidably installed in the elongated through hole 53 and capable of pushing the arc-shaped stopper 52 to release the connection with the saw-tooth structure 42.
In the initial state, the release lever 54 is located upstream of the arc stopper 52 and does not apply force to the arc stopper 52; when the arc-shaped limiting piece 52 needs to be lifted up to release the limiting fixation of the arc-shaped limiting piece 52 on the sliding plate 2, the releasing rod 54 is pushed by external force to move towards the direction of the arc-shaped limiting piece 52, and the releasing rod 54 pushes the arc-shaped limiting piece 52 to be lifted up, so that the limiting fixation of the arc-shaped limiting piece 52 on the sliding plate 2 can be released.
The end part of the sliding plate 2 is provided with at least 2 steel wire through holes 21, threaded holes are communicated with the steel wire through holes 21, and the sliding plate also comprises a fixing bolt 22 which can be in threaded connection with the threaded holes; after the steel wire penetrates into the steel wire through hole 21, the steel wire can be fixed inside the steel wire through hole 21 in an extruding mode by screwing the fixing bolt 22 into the threaded hole. Preferably, the steel wire perforation 21 is arranged to penetrate through the sliding plate 2 along the axial direction of the sliding plate 2, and the steel wire can be knotted and fixed on the side of the sliding plate far away from the human body.
And a screw structure, as shown in fig. 5-7, the screw structure comprising: and the screwing block 6 is arranged at the end part of the guide part 1 through a movable mounting structure and can rotate relative to the guide part 1.
Specifically, one end of the screwing block 6 facing the guide piece 1 is provided with an arc-shaped inner wall 61, one end of the guide piece 1 facing the screwing block 6 is provided with an arc-shaped outer wall 12, and the guide piece 1 and the screwing block 6 are rotatably connected through the arc-shaped outer wall 12 and the arc-shaped inner wall 61.
After the steel wire is tightened, the screwing block 6 is abutted against a human body, and the guide piece 1 is operated to rotate relative to the screwing block 6, so that two ends of the steel wire can be screwed together, and the fixation of the steel wire on the human skeleton is completed. Preferably, two limiting columns 64 are oppositely arranged at one end of the screwing block 6 far away from the guide piece, the middle parts of the limiting columns 64 are round or the side surfaces of the limiting columns 64 are inwards arc-shaped and concave cylindrical, and the limiting columns 64 can guide the steel wire to be better tightened. Preferably, the limiting column 64 is rotatably mounted on the screwing block 6, and the rotatably arranged limiting column 64 can better guide the steel wire to be tightened.
The movable mounting structure for movably mounting the screwing block 6 on the guide member 1 comprises a sliding frame 71, a limiting block 72, a side elastic sheet 73, an arc-shaped protrusion 62 and a groove 63 which are formed on the outer wall of the screwing block 6; wherein the sliding frame 71 is slidably sleeved on the guide member 1; a stop block 72 is fixedly arranged on the guide member 1 and used for limiting the position of the sliding frame 71; at least two side elastic sheets 73 are provided, one end of each side elastic sheet is fixedly connected with the sliding frame 71, and the other end of each side elastic sheet is provided with a bent clamping structure 74; an arc-shaped bulge 62 is formed on the outer wall of the screwing block 6; the groove 63 is formed in the outer wall of the screwing block 6 and located at the rear side of the arc-shaped protrusion 62, and is suitable for the bending clamping structure 74 to go over the arc-shaped protrusion 62 and then be clamped in.
When the steel wire is tightened, the screwing block 6 is installed on the guide 1 through a movable installation structure, and when the steel wire is fixed, the movable installation structure releases the fixation of the screwing block 6 and the guide 1, so that the guide 1 can rotate relative to the screwing block 6, and the steel wire is fixed.
The use method of the steel wire tightening device for fixing fracture in the embodiment is as follows:
two ends of at least one circle of steel wire which bypasses the human skeleton enter from the middle parts of the two limiting columns 64, the two ends of the steel wire are respectively inserted into the steel wire through holes 21 of the guide piece 1, and the steel wire is extruded and fixed in the steel wire through holes 21 by using the fixing bolts 22; or the steel wire can penetrate through the steel wire perforation 21 and is fixed together at one side of the sliding plate 2 away from the human body;
the movable handle 32 is pressed, the movable handle 32 rotates relative to the guide piece 1, the pull rod 33 which is rotatably arranged on the movable handle 32 is connected with the sawtooth structure 42 arranged on the sliding plate 2 through the pulling hook 41, and in the pressing process of the movable handle 32, the pulling pull rod 33 pulls the sliding plate 2 to move relative to the guide piece 1 through the pulling hook 41 and the sawtooth structure 42, and at the moment, the steel wire is gradually tensioned;
in the process that the steel wire is gradually tensioned, one end of the arc-shaped limiting sheet 52 fixed on the fixing block 51 continuously slides over the relatively slow surface of the sawtooth structure 42 and falls on one side of the relatively vertical surface; when the movable handle 32 is pressed to a certain position and the force application is stopped, the arc-shaped limiting piece 52 is abutted against the vertical surface of the sawtooth structure 42, so that the sliding plate 2 is limited and fixed on the guide member 1;
the first pull rod 331 is lifted upwards, the first pull rod 331 rotates around the rotating shaft 34, and then the second pull rod 332 is driven to rotate, the elastic force of the elastic sheet 334 is overcome, and the connection between the drawing hook 41 arranged at the end part of the first pull rod 331 and the sawtooth structure 42 is released;
the first pull rod 331 is lifted greatly, the force application to the first pull rod 331 is stopped, the first pull rod 331 abuts against the sliding plate 2 under the elastic force of the elastic sheet 334, and the pulling hook 41 arranged at the end part of the first pull rod 331 is connected with the sawtooth structure 42 again;
the movable handle 32 is pressed again, the rotation of the movable handle 32 drives the first pull rod 331, the sliding plate 2 is pulled to move towards the direction far away from the human body relative to the guide part 1 again, and the arc-shaped limiting piece 52 continuously limits the sliding plate 2; repeating the process for many times until the steel wire is tightened to meet the requirement;
the side elastic sheet 73 is pulled outwards, so that the bent clamping structure 74 slides out from the groove 63 across the arc-shaped protrusion 62, the sliding frame 71 is pushed to move towards the direction far away from the limiting block 72, and the limitation of the rotation direction of the screwing block 6 and the guide piece 1 is released;
the operation guide piece 1 rotates relative to the screwing block 6, and the circular arc-shaped outer wall 12 arranged at the end part of the operation guide piece 1 rotates relative to the circular arc-shaped inner wall 61 arranged at the end part of the screwing block 6; the two ends of the steel wire are guided by the limiting columns 64 and then are more easily tightened, screwed and fixed;
continuously rotating the guide part 1 until the two ends of the steel wire are screwed together to complete the fixation of the steel wire on the human skeleton;
reversely rotating the fixing bolt 22, taking down the steel wire tightening device for fixing the fracture, and finishing the steel wire by using other instruments;
the pushing release rod 54 moves along the direction of the long through hole 53, and when moving to the lower part of the arc-shaped limiting piece 52, the arc-shaped limiting piece 52 is lifted up to push the sliding plate 2 to reset;
the screwing block 6 is abutted against one end of the guide member 1, the sliding frame 71 is pushed to move towards the direction close to the screwing block 6, and the bending clamping structure 74 passes over the arc-shaped protrusion 62 and then slides into the groove 63, so that the installation and the reset of the screwing block 6 and the guide member 1 are realized.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121716050.1U CN215273243U (en) | 2021-07-27 | 2021-07-27 | A kind of wire tightening device for fixing fractures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121716050.1U CN215273243U (en) | 2021-07-27 | 2021-07-27 | A kind of wire tightening device for fixing fractures |
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| Publication Number | Publication Date |
|---|---|
| CN215273243U true CN215273243U (en) | 2021-12-24 |
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| CN202121716050.1U Expired - Fee Related CN215273243U (en) | 2021-07-27 | 2021-07-27 | A kind of wire tightening device for fixing fractures |
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| Country | Link |
|---|---|
| CN (1) | CN215273243U (en) |
-
2021
- 2021-07-27 CN CN202121716050.1U patent/CN215273243U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211224 |