CN114617624B - Lifting and resetting auxiliary device for femoral shaft fracture operation - Google Patents
Lifting and resetting auxiliary device for femoral shaft fracture operation Download PDFInfo
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- CN114617624B CN114617624B CN202210239242.0A CN202210239242A CN114617624B CN 114617624 B CN114617624 B CN 114617624B CN 202210239242 A CN202210239242 A CN 202210239242A CN 114617624 B CN114617624 B CN 114617624B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8866—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices for gripping or pushing bones, e.g. approximators
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Abstract
The invention provides a lifting and resetting auxiliary device for femoral shaft fracture surgery, which comprises two lifting pull rods, wherein the lifting pull rods are provided with sliding grooves, arc-shaped grooves and rotating holes, and the arc circle centers of the arc-shaped grooves are collinear with the axis of bones; the axis of the rotary hole is collinear with the axis of the lifting rod; one lifting rod of the two lifting rods is connected with an arc plate in a sliding way, and the thickness and the arc center of the arc plate are matched with those of the arc groove; the other lifting rod of the two lifting rods is connected with a rotating shaft in a sliding way, and the outer diameter of the rotating shaft is matched with the inner diameter of the rotating hole; the arc-shaped plate is provided with a first sliding plate which is in sliding connection with the sliding groove; the outer surface of the rotating shaft is provided with a second sliding plate which is in sliding connection with the sliding groove; the lengths of the first sliding plate and the second sliding plate are 1/2 of the length of the sliding groove. The invention can realize axis reduction under the action of traction and realize contour reduction through torsion action, thereby achieving the purpose of completely reducing the fracture position.
Description
Technical Field
The invention relates to a fracture treatment device, in particular to a lifting and resetting auxiliary device for femoral shaft fracture operation.
Background
In recent years, with the continuous progress of fracture treatment concepts, minimally invasive fracture treatment surgery is gradually adopted by orthopedics doctors. The minimally invasive fracture treatment mode can reduce the damage to soft tissues around the fracture to the greatest extent, protect blood supply around the fracture end, effectively accelerate the recovery speed of a patient and improve the fracture healing rate. Although minimally invasive surgery can greatly improve the fracture treatment rate, as the incision of the minimally invasive surgery is very small, the exposure of the fracture end in the surgery is very limited, the difficulty of fracture reduction is greatly increased, and the lower limb muscle strength is strong, and the accurate reduction of the fracture end cannot be realized by simply relying on the Huffman drag hook. The fracture dislocation comprises axis dislocation and peripheral dislocation, wherein the axis dislocation refers to that the axes of two sections of broken bones are not collinear; the circumferential misalignment refers to the deviation of the front and rear directions of two fractured bones (for example, the feet on the lower leg bones should face forward, the feet may face forward after the circumferential misalignment, and the feet may face backward in severe cases), while most auxiliary fracture reduction devices on the market at present mostly achieve the auxiliary axial misalignment by traction, although the fracture position can be improved to a certain extent, but the device cannot directly act on the fractured ends to realize effective circumferential reduction.
Disclosure of Invention
The invention aims to provide a lifting and resetting auxiliary device for femoral shaft fracture surgery, which aims at overcoming the defects of the prior art, can realize axial resetting through the traction effect and realize contour resetting through the twisting action, thereby achieving the purpose of completely resetting the fracture position.
The embodiment of the invention is realized by the following technical scheme: the lifting and resetting auxiliary device for the femoral shaft fracture operation comprises two lifting pull rods with the same structure, wherein the two lifting pull rods are fixedly connected with two sections of bones respectively; the lifting rod is provided with a chute, an arc-shaped groove and a rotary hole, the chute, the arc-shaped groove and the rotary hole are sequentially arranged along the circle center of the lifting rod to the outer side surface of the lifting rod, and the chute, the arc-shaped groove and the rotary hole are communicated through a notch; the arc center of the arc-shaped groove is collinear with the axis of the bone; the axis of the rotary hole is collinear with the axis of the lifting rod; an arc-shaped plate is connected in the arc-shaped groove of one lifting rod of the two lifting rods in a sliding manner, and the thickness and the arc center of the arc-shaped plate are matched with those of the arc-shaped groove; a rotating shaft is connected in a sliding way in a rotating hole of the other lifting pull rod of the two lifting pull rods, and the outer diameter of the rotating shaft is matched with the inner diameter of the rotating hole; the arc-shaped plate is provided with a first sliding plate which is in sliding connection with the chute; the outer surface of the rotating shaft is provided with a second sliding plate which is in sliding connection with the sliding groove; the lengths of the sliding groove, the arc-shaped groove and the rotary hole are matched; the lengths of the first sliding plate and the second sliding plate are 1/2 of the length of the sliding groove.
Further, a limiting hole is formed in the sliding groove, the limiting hole displaces 1/2 of the position of the sliding groove in the length direction, and a limiting screw is connected in the limiting hole in a threaded mode.
Further, a screw hole is formed in the lifting rod, a connecting screw is connected to the screw hole in a threaded mode, and the axis of the connecting screw is perpendicular to the axis of the lifting rod.
Further, a lifting hole is formed in the lifting rod, and a hand rod is connected to the lifting hole in a threaded mode.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
1. according to the invention, the axis of the lifting rod can be aligned by pulling the lifting rod and matching with the rotating hole, so that the purpose of dislocation and reduction of the axis of the fracture position is achieved;
2. according to the invention, the two lifting rods rotate in a matched mode through the arc-shaped grooves and the arc-shaped plates, so that the bone with the axis misplacement reduction can rotate along the axis of the bone, and the bone circumference misplacement reduction is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a structure provided by the present invention;
FIG. 2 is a schematic three-dimensional structure of a lifting rod according to the present invention;
FIG. 3 is a state diagram of the present invention when performing an axis misalignment reset;
FIG. 4 is a state diagram of the present invention when performing an axis misalignment reset;
icon: 1-a lifting rod; 11-a chute; 12-rotating the hole; 13-arc grooves; 14-pulling holes; 15-screw holes; 2-connecting screws; 3-a hand lever; 4-rotating shaft; 5-sliding plates; 6-arc plate; .
Detailed Description
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-4, a lifting and resetting auxiliary device for femoral shaft fracture surgery comprises two lifting pull rods 1 with the same structure, wherein the two lifting pull rods 1 are fixedly connected with two sections of bones respectively, and the movement of the lifting pull rods 1 brings the movement of the bones; the lifting pull rod 1 is provided with a sliding chute 11, an arc-shaped groove 13 and a rotary hole 12, the sliding chute 11, the arc-shaped groove 13 and the rotary hole 12 are sequentially arranged along the circle center of the lifting pull rod 1 to the outer side surface of the lifting pull rod 1, and the sliding chute 11, the arc-shaped groove 13 and the rotary hole 12 are communicated through gaps; the arc center of the arc-shaped groove 13 is collinear with the axis of the bone, and when the arc-shaped groove 13 is taken as a motion track, the rotation center of the lifting rod 1 is collinear with the axis of the bone, so that the bone can rotate around the axis of the bone, and the bone with the dislocation of the circumference is reset; the axis of the rotary hole 12 is collinear with the axis of the lifting rod 1, when the lifting rod 1 takes the rotary hole 12 as a motion track, the rotation center of the lifting rod 1 is matched with the axis of the lifting rod 1, and the lifting rod 1 rotates with the bone to realize the dislocation and the reset of the axis of the bone; an arc-shaped plate 6 is connected in a sliding manner in the arc-shaped groove 13 of one lifting pull rod 1 of the two lifting pull rods 1, the thickness and the arc center of the arc-shaped plate 6 are matched with the arc-shaped groove 13, and when the arc-shaped groove 13 is taken as a movement track, two ends of the arc-shaped plate 6 are respectively arranged in the arc-shaped grooves 13 of different lifting pull rods 1; a rotary shaft 4 is slidably connected in the rotary hole 12 of the other lifting rod 1, the outer diameter of the rotary shaft 4 is matched with the inner diameter of the rotary hole 12, and when the lifting rod 1 takes the rotary hole 12 as a motion track, two ends of the rotary shaft 4 are respectively arranged in the rotary holes 12 of different lifting rods 1; the arc-shaped plate 6 is provided with a first sliding plate 5, the first sliding plate 5 is in sliding connection with the sliding groove 11, and the first sliding plate 5 stretches into or withdraws from the arc-shaped groove 13 with the arc-shaped plate 6; the outer surface of the rotating shaft 4 is provided with a second sliding plate 5, the second sliding plate 5 is in sliding connection with the sliding groove 11, and the second sliding plate 5 stretches into or withdraws from the rotating hole 12 with the rotating shaft 4; the lengths of the sliding groove 11, the arc-shaped groove 13 and the rotary hole 12 are matched, and the lengths of the sliding groove 11, the arc-shaped groove 13 and the rotary hole 12 are matched with the axial direction of the lifting rod 1; the lengths of the first sliding plate 5 and the second sliding plate 5 are 1/2 of the length of the sliding groove 11, so that the first sliding plate 5 or the second sliding plate 5 is prevented from interfering with the movement of the lifting rod 1.
Specifically, the sections of the first sliding plate 5 and the second sliding plate 5 are T-shaped.
The plate and the first slide plate 5 and the second slide plate 5 correspondingly connected with the lifting rod 1 do not extend into the sliding groove 11 of the other lifting rod 1.
In this embodiment, a limiting hole is formed in the sliding groove 11, the limiting hole displaces 1/2 of the position of the sliding groove 11 in the length direction, a limiting screw is connected in the limiting hole in a threaded manner, and the limiting screw can limit the movement of the first sliding plate 5 and the second sliding plate 5, so that the first sliding plate 5 and the second sliding plate 5 are prevented from exiting the sliding groove 11 connected with the first sliding plate and the second sliding plate 5 or extending into the sliding groove 11 on the other lifting rod 1 when the lifting rod 1 works.
In this embodiment, the lifting rod 1 is provided with a screw hole 15, the screw hole 15 is internally screwed with a connecting screw 2, the axis of the connecting screw 2 is perpendicular to the axis of the lifting rod 1, and the lifting rod 1 is detachably and fixedly connected with the fracture section bones at two ends of the fracture through the connecting screw 2.
Specifically, the screw hole 15 is a countersunk hole, so that the screw cap of the connecting screw 2 is prevented from scratching tissues during the rotation of the lifting rod 1.
In this embodiment, the lifting rod 1 is provided with a lifting hole 14, the lifting hole 14 is internally connected with the walking rod 3 in a threaded manner, and an operator can hold the walking rod 3 to apply force to the lifting rod 1.
In this embodiment, a lifting and resetting auxiliary device for femoral shaft fracture surgery works as follows:
s1: the two lifting pull rods 1 are respectively connected to different broken bone segments through connecting screws 2;
s2: the operator lifts the lifting handle support rod 3, and carries one lifting handle rod 1 to translate, so that the axes of the two lifting handle rods 1 are overlapped; at this time, the two broken bones are positioned on an arc taking the axis of the lifting rod 1 as the center of a circle
S3: as shown in fig. 3, the operator slides the second slide plate 5 to insert the rotating shaft 4 into the rotating hole 12, and the operator dials the hand rest 3 to rotate with one of the lifting rods 1 along the axis of the rotating shaft 4, so that the axes of the two broken bones coincide, and the axis resetting of the broken bones is completed;
s4: as shown in fig. 4, after step S3, the operator slides the second slide plate 5 to withdraw the rotation shaft 4 from the rotation hole 12; and the operator slides the first sliding plate 5 to enable the arc-shaped plate 6 to be inserted into the arc-shaped groove 13, the operator dials the hand rod 3, and the hand rod 3 drives one of the lifting pull rods 1 to rotate by taking the arc-shaped groove 13 as a track, so that the broken bone rotates by taking the axis of the broken bone as a track, and the contour line reset of the broken bone is completed.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A lifting and resetting auxiliary device for femoral shaft fracture operation, which is characterized in that: the bone fracture fixation device comprises two lifting rods (1) with the same structure, wherein the two lifting rods (1) are fixedly connected with two sections of bones respectively; the lifting rod (1) is provided with a sliding groove (11), an arc-shaped groove (13) and a rotary hole (12), the sliding groove (11), the arc-shaped groove (13) and the rotary hole (12) are sequentially arranged from the center of the lifting rod (1) to the outer side surface of the lifting rod (1), and the sliding groove (11), the arc-shaped groove (13) and the rotary hole (12) are communicated through gaps; the arc center of the arc-shaped groove (13) is collinear with the axis of the bone; the axis of the rotary hole (12) is collinear with the axis of the lifting rod (1); an arc-shaped plate (6) is connected in a sliding manner in the arc-shaped groove (13) of one lifting rod (1) of the two lifting rods (1), and the thickness and the arc center of the arc-shaped plate (6) are matched with the arc-shaped groove (13); a rotating shaft (4) is connected in a sliding manner in a rotating hole (12) of the other lifting rod (1) of the two lifting rods (1), and the outer diameter of the rotating shaft (4) is matched with the inner diameter of the rotating hole (12); a first sliding plate (5) is arranged on the arc-shaped plate (6), and the first sliding plate (5) is in sliding connection with the sliding groove (11); the outer surface of the rotating shaft (4) is provided with a second sliding plate (5), and the second sliding plate (5) is in sliding connection with the sliding groove (11); the lengths of the sliding groove (11), the arc-shaped groove (13) and the rotary hole (12) are matched; the lengths of the first sliding plate (5) and the second sliding plate (5) are 1/2 of the length of the sliding groove (11).
2. A lifting and resetting aid for femoral shaft fracture surgery as defined in claim 1, wherein: a limiting hole is formed in the sliding groove (11), the limiting hole displaces 1/2 of the position of the sliding groove (11) in the length direction, and a limiting screw is connected in the limiting hole in a threaded mode.
3. A lifting and resetting aid for femoral shaft fracture surgery as defined in claim 1, wherein: the lifting rod (1) is provided with a screw hole (15), the screw hole (15) is internally connected with a connecting screw (2) in a threaded manner, and the axis of the connecting screw (2) is perpendicular to the axis of the lifting rod (1).
4. A lifting and resetting aid for femoral shaft fracture surgery as defined in claim 1, wherein: the lifting rod (1) is provided with a lifting hole (14), and the lifting hole (14) is internally connected with a hand rod (3) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210239242.0A CN114617624B (en) | 2022-03-09 | 2022-03-09 | Lifting and resetting auxiliary device for femoral shaft fracture operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210239242.0A CN114617624B (en) | 2022-03-09 | 2022-03-09 | Lifting and resetting auxiliary device for femoral shaft fracture operation |
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| Publication Number | Publication Date |
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| CN114617624A CN114617624A (en) | 2022-06-14 |
| CN114617624B true CN114617624B (en) | 2023-05-23 |
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| CN202210239242.0A Active CN114617624B (en) | 2022-03-09 | 2022-03-09 | Lifting and resetting auxiliary device for femoral shaft fracture operation |
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| CN113907882A (en) * | 2021-08-26 | 2022-01-11 | 四川大学华西医院 | A location robot resets for fracture operation |
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