CN110313981B - Bone plate aiming device and method - Google Patents
Bone plate aiming device and method Download PDFInfo
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- CN110313981B CN110313981B CN201910667780.8A CN201910667780A CN110313981B CN 110313981 B CN110313981 B CN 110313981B CN 201910667780 A CN201910667780 A CN 201910667780A CN 110313981 B CN110313981 B CN 110313981B
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title abstract description 18
- 208000010392 Bone Fractures Diseases 0.000 claims abstract description 33
- 230000008685 targeting Effects 0.000 claims description 12
- 238000013461 design Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 210000004872 soft tissue Anatomy 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Classifications
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
-
- 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
-
- 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
- A61B17/90—Guides therefor
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a bone plate aiming device and a method, wherein the bone plate aiming device comprises the following components: a clamping unit for clamping the bone plate and a navigation member for alignment with the holes in the bone plate; the navigation piece comprises a navigation plate provided with holes; the navigation piece is connected with the clamping unit, and the holes on the navigation plate correspond to the holes on the bone fracture plate. The bone plate aiming device can avoid soft tissues and accurately correspond to the bone plate, has simple structural design, low processing cost and convenient use, and is a good choice in clinical operation; the navigation piece and the clamping unit are arranged separately, so that the time for connecting and separating the navigation piece and the bone fracture plate can be saved, in addition, the navigation piece can be arranged on the clamping unit in a detachable way, when the bone fracture plates are different, only the navigation piece is needed to be replaced, the whole bone fracture plate aiming device is not needed to be replaced, and the operation cost is saved; the clamping or separating process is stable, which is beneficial to accurately implanting the bone fracture plate.
Description
Technical Field
The invention belongs to the technical field of surgical medical instruments, and relates to a bone plate aiming device and a bone plate aiming method.
Background
In medical clinic, limb fracture is one of the common diseases of bone trauma. The common method for treating the fracture is to connect and fix the fracture blocks by using bone plates after cutting the wound surface, and the defects after the fracture operation are as follows: because the incision wound surface is bigger, the postoperative recovery of a patient is slower, and longer scars can be caused on the skin, in the operation process, in order to avoid the defects, the incision wound surface is reduced as much as possible, more doctors adopt minimally invasive operation, and the minimally invasive operation can accurately complete nailing only by using an external sighting device. However, the existing operation sighting device is inaccurate in positioning, and is complex in structure and difficult to process.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides the bone plate aiming device and the bone plate aiming method, which are simple and accurate in positioning, save the steps of separating and connecting the bone plate and the navigation piece, are convenient to use and greatly save the operation time.
To achieve the purpose, the technical scheme of the invention is as follows:
one of the objects of the present invention is to provide a bone plate targeting device comprising: a clamping unit for clamping the bone plate and a navigation member for alignment with the holes in the bone plate;
the navigation piece comprises a navigation plate provided with holes;
the navigation piece is connected with the clamping unit, and the holes on the navigation plate correspond to the holes on the bone fracture plate.
Preferably, the clamping unit includes a first clamping portion and a second clamping portion;
the first clamping part comprises a first handheld part, a first clamping rod and a first clamping plate which are sequentially connected, and a first included angle is formed between the first clamping rod and the first clamping plate;
the second clamping part comprises a second handheld part, a second clamping rod and a second clamping plate which are sequentially connected, and a second included angle is formed between the second clamping rod and the second clamping plate;
the first handheld part and the second handheld part are connected through a first connecting shaft, and the degree of the first included angle and the degree of the second included angle do not comprise 0 degrees or 180 degrees independently;
the navigation piece is connected with the first clamping rod and/or the second clamping rod.
Preferably, the first hand-holding part comprises a first handle and a first connecting rod, one end of the first connecting rod is connected with the first handle, and the other end of the first connecting rod is connected with the first clamping rod.
Preferably, the second handheld portion includes a second handle and a second connecting rod, one end of the second connecting rod is connected to the second handle, and the other end of the second connecting rod is connected to the second clamping rod.
Preferably, the first connecting rod is provided with a first connecting hole, the second connecting rod is provided with a second connecting hole, and the first connecting hole is connected with the second connecting hole through a first connecting shaft.
The first connecting rod and the second connecting rod are arranged in parallel.
The first clamping rod is rotatably fixed to the first connecting rod.
Preferably, the second clamping lever is rotatably fixed to the second connecting lever.
The first clamping rod is connected with the first connecting rod in a meshed mode.
Preferably, the second clamping rod is in meshed connection with the second connecting rod.
An elastic piece is further arranged between the first handheld portion and the second handheld portion, and two ends of the elastic piece are respectively fixed to the first handheld portion and the second handheld portion.
The bone fracture plate sighting device is characterized in that the bone fracture plate sighting device is further provided with a buffer piece, the first clamping rod and the second clamping rod are arranged in parallel, a first groove is formed in one side, close to the second clamping rod, of the first clamping rod, a second groove is formed in one side, close to the first clamping rod, of the second clamping rod, and two ends of the buffer piece are respectively arranged in the first groove and the second groove.
Preferably, the buffer member comprises a cross stay, the cross stay comprises two rods which are arranged in a crossing and rotatable mode, and a second connecting shaft is arranged at the crossing position.
The first clamping plate and the second clamping plate are arranged in parallel, and the navigation plate is arranged in parallel with the first clamping plate and/or the second clamping plate.
The navigation piece comprises a navigation plate, a parallel adjusting table and a connecting part which are sequentially connected, and the connecting part is detachably connected with the first clamping rod and/or the second clamping rod.
Preferably, the navigation panel is a flat panel or a curved panel.
Preferably, the longitudinal section of the parallel adjustment table is triangular or trapezoidal.
Preferably, the connection portion includes a clip post.
It is a second object of the present invention to provide a targeting method of a bone plate targeting device as described above, the method comprising the steps of:
(1) The clamping unit clamps the bone fracture plate to be implanted;
(2) The bone plate to be implanted is inserted into the desired position, after which the bone plate sleeve is installed by the navigation plate and the locking member is screwed in.
Specifically, the aiming method adopting the bone plate aiming device comprises the following steps:
(1) Selecting a bone plate aiming device with a navigation piece with a specification corresponding to the bone plate to be implanted;
(2) Adjusting the width between the first clamping plate and the second clamping plate according to the width of the bone plate to be implanted: applying a force to the first and second hand-held portions such that the first clamping bar is distal to the second clamping bar and the first clamping plate is distal to the second clamping plate;
(3) Clamping a bone fracture plate to be implanted between a first clamping plate and a second clamping plate;
(4) The bone plate to be implanted is inserted into the required position, and then the special bone plate sleeve is installed through the navigation plate, and the locking piece is screwed in.
Compared with the prior art, the invention has the beneficial effects that:
the bone plate aiming device provided by the invention is suitable for mounting metal screws in the minimally invasive operation of the straight metal bone plate, has the advantages of simple structural design, low processing cost and convenience in use, and is a good choice in clinical operation;
the bone plate aiming device provided by the invention can avoid soft tissues and accurately correspond to the bone plate, is convenient for separating from the bone plate in structure, and can complete the nailing work by installing the special bone plate sleeve on the chute of the navigation piece;
according to the bone plate aiming device, the navigation piece is not in contact with the bone plate, and the bone plate is not required to be separated from the navigation piece after an operation, so that the operation time is saved; in addition, the navigation piece is detachably connected with the bone plate aiming device body, when the used bone plates are different, only the navigation piece is needed to be replaced, the whole bone plate aiming device is not needed to be replaced, the operation cost is saved, and the application range is wide;
according to the bone plate aiming device, the arrangement of the handheld part is more in accordance with human mechanics, the use is convenient, the handheld part and the handheld rod can be rotatably connected, and the position of the clamping rod can be conveniently adjusted, so that bone plates can be inserted into different positions;
according to the bone plate aiming device, the arranged cross stay bars can effectively limit the strokes of the first clamping rods and the second clamping rods, so that the distance between the first clamping plates and the second clamping plates can be regulated stably, and the distance can be corresponding to the width of the bone plate to be inserted quickly;
the aiming method using the bone plate aiming device provided by the invention is easy to operate and accurate in positioning.
Drawings
FIG. 1 is a schematic view of the bone plate targeting device provided in example 1;
FIG. 2 is a schematic view of the bone plate aiming device of example 1 after insertion into a bone plate;
FIG. 3 is a functional schematic of the bone plate targeting device provided in example 1;
FIG. 4 is a schematic view of the structure of the first hand-hold part provided in embodiment 1;
FIG. 5 is a schematic view of the structure of the second hand-hold part provided in embodiment 1;
FIG. 6 is a schematic view of the first clamping rod and the first clamping plate of the bone plate aiming device according to embodiment 1;
FIG. 7 is a schematic view of the second clamping rod and the second clamping plate of the bone plate aiming device according to embodiment 1;
FIG. 8 is a schematic view showing an assembled structure of a first clamping rod and a first hand-hold portion in the bone plate aiming device according to embodiment 1;
FIG. 9 is a schematic view of the cross stay in the bone plate aiming device provided in example 1;
FIG. 10 is a schematic perspective view of a navigation member in a bone plate aiming device according to an embodiment (the holes in the navigation plate are schematic and can be adjusted according to actual needs);
FIG. 11 is a front view of a navigation piece in a bone plate targeting device provided in one embodiment;
FIG. 12 is a side view of FIG. 11 provided by an embodiment;
FIG. 13 is a right side view of FIG. 11 provided by an embodiment;
FIG. 14 is a front view of the navigation piece provided in embodiment 1;
FIG. 15 is a front view of the navigation piece provided in embodiment 2;
FIG. 16 is a front view of the navigation piece provided in embodiment 3;
fig. 17 is a front view of the navigation member provided in embodiment 4.
Wherein:
1. first hand-held part
11. First connecting rod of first handle 12
13. Rectangular slot of first connecting slot 14
2. First clamping rod
21. First main rod 22 first connecting block
23. First connecting hole 24 first clamping hole
3. First clamping plate
31. First clamping groove
4. Second hand-held part
41. Second handle 42 second connecting rod
43. Second connecting groove
5. Second clamping rod
51. Second main rod 52 second connecting block
53. Second connecting hole 54 second clamping hole
6. Second clamping plate
61. Second clamping groove
7. First connecting shaft
8. Navigation piece
81. Navigation board 82 hole
83. Parallel adjusting table 84 clamping column
9. Elastic piece
10. Cross stay bar
101. Rod
102. Second connecting shaft
103. Bolt
100. Bone fracture plate
200. Spring mounting block
300. A spring;
the direction indicated by the arrow in fig. 3 is the insertion direction of the navigation piece.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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 can be understood by those of ordinary skill in the art in a specific case.
One of the objects of the present invention is to provide a bone plate targeting device comprising:
a clamping unit for clamping the bone plate and a navigation member for alignment with the holes in the bone plate;
the navigation piece comprises a navigation plate provided with holes;
the navigation piece is connected with the clamping unit, and the holes on the navigation plate correspond to the holes on the bone fracture plate.
The navigation piece is not connected with the bone fracture plate, so that the steps of connecting and disassembling the navigation piece and the bone fracture plate are omitted, the structure is simple, the use is convenient, and the operation time is saved.
Preferably, the clamping unit includes a first clamping portion and a second clamping portion;
the first clamping part comprises a first handheld part, a first clamping rod and a first clamping plate which are sequentially connected, and a first included angle is formed between the first clamping rod and the first clamping plate;
the second clamping part comprises a second handheld part, a second clamping rod and a second clamping plate which are sequentially connected, and a second included angle is formed between the second clamping rod and the second clamping plate;
the first handheld part and the second handheld part are connected through a first connecting shaft, and the degree of the first included angle and the degree of the second included angle do not comprise 0 degrees or 180 degrees independently;
the navigation piece is connected with the first clamping rod and/or the second clamping rod.
The bone plate aiming device is used for preventing the bone plate from contacting with the navigation piece when the bone plate is implanted, does not need to additionally separate the bone plate from the navigation piece, clamps the bone plate through the first clamping plate and the second clamping plate, and is convenient and quick. After the bone fracture plate is implanted, the special bone fracture plate sleeve is arranged on the runner of the navigation piece, and the nail loading operation of the bone fracture plate can be completed.
The bone plate aiming device is simple in structure and convenient to use, the bone plate and the navigation piece do not need to be separated after the bone plate is implanted, and the bone plate aiming device and the bone plate can be separated only by loosening the first clamping plate and the second clamping plate, so that the operation time can be saved.
The first clamping part is connected with the second clamping part through the first connecting shaft, accords with the design of human mechanics, and an operator holds the first clamping part and the second clamping part, exerts force on the bone plate aiming device through hands, so that the first clamping rod is separated from or close to the second clamping rod, and further the first clamping plate is driven to be separated from or close to the second clamping plate, thereby clamping or loosening the bone plate, and the requirement of bone plate implantation operation can be met.
In order to facilitate clamping of the bone fracture plate, the first clamping rod and the central axis of the first clamping plate have a certain included angle, the second clamping rod and the central axis of the second clamping plate have a certain included angle, and the two included angles are the same and are not 0 degrees or 180 degrees, such as 5 degrees, 10 degrees, 30 degrees, 50 degrees, 70 degrees, 90 degrees or 120 degrees, etc.
Preferably, the first hand-holding part comprises a first handle and a first connecting rod, one end of the first connecting rod is connected with the first handle, and the other end of the first connecting rod is connected with the first clamping rod.
Preferably, the second handheld portion includes a second handle and a second connecting rod, one end of the second connecting rod is connected to the second handle, and the other end of the second connecting rod is connected to the second clamping rod.
The design of the first handle and the second handle is convenient for the hand of an operator to apply a force to the bone plate aiming device, so that the first clamping rod is separated from or close to the second clamping rod, and the first clamping rod and the second clamping rod can be cylindrical, square, oval or round, and as a preferable technical scheme, the handles are preferably similar to an oval structure.
Preferably, the first connecting rod is provided with a first connecting hole, the second connecting rod is provided with a second connecting hole, and the first connecting hole is connected with the second connecting hole through a first connecting shaft. As the preferable technical scheme, the two ends of the connecting shaft are provided with bulges so as to prevent the first connecting rod and the second connecting rod from sliding off the connecting shaft.
The first handheld part and the second handheld part are connected through the connecting shaft of the first connecting rod and the second connecting rod, so that the first clamping rod and the second clamping rod can be separated or close.
The first connecting rod and the second connecting rod are arranged in parallel.
The first clamping rod is rotatably fixed to the first connecting rod.
Preferably, the second clamping lever is rotatably fixed to the second connecting lever.
The first clamping rod and/or the second clamping rod are/is rotatably fixed on the first connecting rod or the second connecting rod, so that the bone fracture plate is implanted in different positions of the bone fracture plate aiming device, and an operator can select a proper connecting angle between the clamping rod and the connecting rod according to the implantation position.
As an optimal technical scheme, the first clamping rod is connected with the first connecting rod in a meshed mode so as to keep the angle stable.
Preferably, the second clamping rod is in meshed connection with the second connecting rod, so that the connecting angle of the second connecting rod and the second clamping rod is kept stable.
An elastic piece is further arranged between the first handheld portion and the second handheld portion, and two ends of the elastic piece are respectively fixed to the first handheld portion and the second handheld portion.
The elastic piece enables the first handheld part and the second handheld part to recover the initial position more easily, and the bone plate aiming device is separated from the bone plate more easily after the bone plate is implanted. As the preferable technical scheme, the elastic piece comprises an elastic piece, and two ends of the elastic piece are respectively fixed on the first handheld part and the second handheld part.
The first clamping rod and the second clamping rod are arranged in parallel, a first groove is formed in one side, close to the second clamping rod, of the first clamping rod, a second groove is formed in one side, close to the first clamping rod, of the second clamping rod, and two ends of the buffer piece are respectively arranged in the first groove and the second groove.
The buffer piece can effectively limit the travel of the first clamping rod and the second clamping rod, and is favorable for stably adjusting the distance between the first clamping plate and the second clamping plate so as to quickly correspond to the width of the bone fracture plate to be inserted.
The buffer part is preferably a cross stay rod, the cross stay rod comprises two rods which are arranged in a crossed and rotatable mode, and a second connecting shaft is arranged at the crossed position.
The first clamping plate and the second clamping plate are arranged in parallel, and the navigation plate is arranged in parallel with the first clamping plate and/or the second clamping plate.
The first clamping plate and the second clamping plate are arranged in parallel, so that the bone fracture plate can be clamped conveniently. The navigation plate is parallel to the first clamping plate and/or the second clamping plate, and the holes on the navigation plate correspond to the holes on the bone plate, so that the navigation piece can be aligned with the holes on the bone plate, and the locking piece can be accurately driven into the bone plate through the navigation piece. As a preferred technical scheme, the navigation plate on the bone plate aiming device has the center line of the hole coincident with the center line of the hole on the inserted bone plate.
The navigation piece comprises a navigation plate, a parallel adjusting table and a connecting part which are sequentially connected, and the connecting part is detachably connected with the first clamping rod and/or the second clamping rod.
The connecting part is detachably connected with the first clamping rod and/or the second clamping rod, so that the bone plate aiming device can select different navigation pieces according to different bone plates, the bone plates are different, only the navigation pieces are needed to be replaced, the whole bone plate aiming device is not needed to be replaced, the operation cost is greatly saved, and the application range of the bone plate aiming device is wider.
Preferably, the navigation panel is a flat panel.
Preferably, the longitudinal section of the parallel adjustment table is triangular or trapezoidal. The longitudinal section of the parallel adjustment table is triangular or trapezoidal, so that the stability of the parallel adjustment table after being fixed is facilitated.
Preferably, the connecting portion comprises a clamping column, the first clamping rod and/or the second clamping rod is/are provided with a clamping groove, and the clamping column is inserted into the clamping groove to be fixed. The number of the clamping posts can be 1, 2, 3, 5, 7, 9 or 10, etc., and is preferably more than 2.
It is a second object of the present invention to provide a targeting method of a bone plate targeting device as described above, the method comprising the steps of:
(1) The clamping unit clamps the bone fracture plate to be implanted;
(2) The bone plate to be implanted is inserted into the desired position, after which the bone plate sleeve is installed by the navigation plate and the locking member is screwed in.
Specifically, the aiming method adopting the bone plate aiming device comprises the following steps:
(1) Selecting a bone plate aiming device with a navigation piece with a specification corresponding to the bone plate to be implanted;
(2) Adjusting the width between the first clamping plate and the second clamping plate according to the width of the bone plate to be implanted: applying a force to the first and second hand-held portions such that the first clamping bar is distal to the second clamping bar and the first clamping plate is distal to the second clamping plate;
(3) Clamping a bone fracture plate to be implanted between a first clamping plate and a second clamping plate;
(4) The bone plate to be implanted is inserted into the required position, and then the special bone plate sleeve is installed through the navigation plate, and the locking piece is screwed in.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
A bone plate aiming device, as shown in fig. 1-14, comprises a clamping unit for clamping a bone plate and a navigation piece 8 for aligning with a hole on the bone plate; the clamping unit comprises a first clamping part and a second clamping part;
the first clamping part comprises a first handheld part 1, a first clamping rod 2 and a first clamping plate 3 which are sequentially connected, and a first included angle is formed between the first clamping rod 2 and the first clamping plate 3;
the first hand-holding part 1 includes a first handle 11 (the first handle in this embodiment has an oval-like structure, and in another embodiment, it may have other shapes, so long as it is convenient to hold, and can cooperate with the second handle to prop open the first clamping rod and the second clamping rod), and a first connecting rod 12, where one end of the first connecting rod 12 is connected to the first handle 11, and the other end is connected to the first clamping rod 2; as shown in fig. 4, a first connecting groove 13 is formed at the front end of the first connecting rod 12; the first connecting groove 13 is of a semi-through groove structure with an open top end and an open front end, and a fixing hole is formed in the groove wall on one side of the first connecting groove 13;
as shown in fig. 6, the first clamping lever 2 includes a first main lever 21 and a first connecting block 22 provided at one end thereof, and the other end thereof is connected to the first clamping plate 3; the first connecting block 22 is a ring, the outer circumferential wall forms uniformly distributed teeth, and the end face forms a through hole; the teeth are arranged along the circumferential outer wall of the first connecting block 22; the outer circumferential wall of the first connecting block 22 is fixedly connected with the end face of the first main rod 21;
the first clamping rod 2 is in meshed connection with the first connecting rod 12 through the first connecting groove 13 and the first connecting block 22; as shown in fig. 8, a spring 300 is disposed in the first connecting groove 13, and the spring 300 is disposed in the first connecting groove 13 through a spring mounting block 200, and the end surface of the spring mounting block 200 contacting with the first connecting block 22 forms teeth; teeth on the first connecting block 22 are meshed with teeth on the end face of the spring mounting block 200, namely, each tooth rotates by the same angle and has a pause, and after the first clamping rod 2 rotates due to the elastic action of the spring 300, the spring mounting block 200 is ejected outwards by the spring 300 to fix the first clamping rod 2, so that the stability of the first clamping rod 2 is ensured; the first connecting block 22 is fixed in the first connecting groove 13 through a pin shaft (the pin shaft sequentially passes through a fixing hole on the side wall of the first connecting groove 13 and a through hole formed on the end surface of the first connecting block 22 to fix the first connecting block 22 in the first connecting groove 13); the spring 300 may be other elastic structures, as long as the spring can fix the first clamping rod 2; the engagement connection of the first clamping rod 2 and the first connecting rod 12 is shown in fig. 3;
the degree of the first included angle does not include 0 ° or 180 °;
the second clamping part comprises a second handheld part 4, a second clamping rod 5 and a second clamping plate 6 which are sequentially connected, and a second included angle is formed between the second clamping rod 5 and the second clamping plate 6;
the second hand-holding part 4 includes a second handle 41 (in this embodiment, the second handle has an oval-like structure, in another embodiment, it may have other shapes, so long as it is convenient to hold the hand and can cooperate with the first handle to prop open the first clamping rod and the second clamping rod), and a second connecting rod 42, where one end of the second connecting rod 42 is connected to the second handle 41, and the other end is connected to the second clamping rod 5; as shown in fig. 5, a second connection groove 43 is formed at the front end of the second connection rod 42; the second connecting groove 43 has a semi-through groove structure with an open top end and an open front end, and fixing holes are formed in the groove wall at one side of the second connecting groove 43;
as shown in fig. 7, the second clamping lever 5 includes a second main lever 51 and a second connection block 52 provided at one end thereof, and the other end thereof is connected to the second clamping plate 6; the second connecting block 52 is ring-shaped, and a through hole is formed in the end face;
in this embodiment, the second clamping rod 5 and the second connecting rod 42 are rotatably connected with the second connecting block 52 through the second connecting slot 43; the method comprises the following steps: the second connection block 52 is fixed in the second connection groove 43 through a pin shaft (the pin shaft sequentially passes through a fixing hole on the side wall of the second connection groove 43 and a through hole formed on the end face of the second connection block 22 to fix the second connection block 52 in the second connection groove 43);
in another embodiment, the second connecting block 52 and the second connecting slot may also adopt a manner of engagement connection between the first connecting block and the first connecting slot;
the degree of the second included angle does not include 0 ° or 180 °;
the first connecting rod 12 is arranged in parallel with the second connecting rod 42; the first connecting rod 12 is provided with a first connecting hole, the second connecting rod 42 is provided with a second connecting hole, and the first connecting hole is connected with the second connecting hole through a first connecting shaft 7 (the first connecting shaft is specifically a pin); a side wall of the first connecting rod 12 far away from the second connecting rod 42 is provided with a rectangular groove 14 which is vertically arranged;
an elastic piece 9 is further arranged between the first handle 11 and the second handle 41, and two ends of the elastic piece 9 are respectively fixed on opposite sides of the first handle 11 and the second handle 41;
the first clamping rod 2 and the second clamping rod 5 are arranged in parallel, a first groove is formed in one side, close to the second clamping rod 5, of the first clamping rod 2, a second groove is formed in one side, close to the first clamping rod 2, of the second clamping rod 5, two ends of the cross brace 10 are respectively arranged in the first groove and the second groove, the cross brace 10 comprises two rods 101 which are arranged in a crossed and rotatable mode, and a second connecting shaft 102 is arranged at the crossed position;
first connecting holes 23 connected with the cross stay bar 10 are formed at two ends of the top surface of the first main rod 21, and first clamping holes 24 connected with the navigation piece 8 are formed in the middle; second connecting holes 53 connected with the cross brace 10 are formed at two ends of the top surface of the second main rod 51, and second clamping holes 54 connected with the navigation piece 8 are formed in the middle;
four end portions of the rod 101 of the cross brace 10 are fixed in the two first connection holes 23 and the two second connection holes 53, respectively, by bolts 103; the rod 101 can be separated or folded around the second connecting shaft 102 after being acted by the acting force of the first clamping rod 2 and the second clamping rod 5, and plays a role of buffering the separation or folding of the first clamping rod 2 and the second clamping rod 5;
the first clamping plate 3 and the second clamping plate 6 are arranged in parallel; the side wall of the first clamping plate 3, which is close to the side of the second clamping plate 6, is provided with a first clamping groove 31; the side wall of the second clamping plate 6, which is close to the first clamping plate 3, is provided with a second clamping groove 61; the groove widths of the first clamping groove 31 and the second clamping groove 61 are matched with the thickness of the bone plate, and the bone plate is inserted into the bone plate for use during installation;
the navigation piece 8 comprises a navigation plate 81, a parallel adjusting table 83 and a connecting part which are connected in sequence;
the navigation plate 81 is provided with holes 82, the holes 82 correspond to the holes on the bone plate, and the center line of the holes 82 is in the same straight line with the center line of the corresponding holes on the bone plate; the shape of the hole 82 is round, square or oval, and the hole pattern can be adjusted as required; the length and shape of the navigation board 81 are adjustable, and can be a flat board or a curved board; the schematic structural diagram of the navigation board in this embodiment is shown in fig. 10, specifically, it is a navigation board provided with 6 oval holes;
the navigation plate 81 is arranged in parallel with the bone plate 6 through a parallel adjusting table 83; the parallel adjustment table 83 ensures that the hole in the navigation plate after the navigation piece 8 is fixed on the first clamping rod 2 and the second clamping rod 5 is on the same vertical line with the center of the hole in the bone plate 100; the longitudinal section of the parallel adjustment table 83 is triangular or trapezoidal; the width of the parallel adjustment table 83 is larger than the width of the navigation plate 81;
the connecting part comprises clamping columns 84, and the number of the clamping columns is 2 in the embodiment; the 2 clamping posts 84 are respectively inserted into the first clamping holes 24 and the second clamping holes 54 of the first clamping rod 2 and the second clamping rod 5.
Example 2
The bone plate aiming device has the same structure as the bone plate aiming device in the embodiment 1 except that the first connecting rod and the first clamping rod and the second connecting rod and the second clamping rod are fixedly connected, and the hole pattern on the navigation plate is elliptical and the number of holes is 4 as shown in fig. 15.
Example 3
The bone plate aiming device was constructed in the same manner as described in example 1, except that the hole pattern on the navigation plate was circular and the number of holes was 7 as shown in fig. 16.
Example 4
The bone plate aiming device was constructed in the same manner as described in example 1, except that the hole pattern on the navigation plate was circular and the number of holes was 4 as shown in fig. 17.
Example 5
The bone plate aiming device is the same as that described in embodiment 1 except that the cross stay 10 is not provided.
The method for driving the locking piece by adopting the bone plate aiming device to aim at the hole on the bone plate comprises the following steps:
(1) Selecting a bone plate aiming device with a navigation piece with a specification corresponding to the bone plate to be implanted;
(2) Adjusting the width between the first clamping plate and the second clamping plate according to the width of the bone plate to be implanted: applying force to the first handle and the second handle to drive the first clamping rod to be far away from the second clamping rod, and further drive the first clamping plate to be far away from the second clamping plate;
(3) Clamping a bone fracture plate to be implanted between a first clamping plate and a second clamping plate;
(4) Inserting the bone plate to be implanted into a required position, installing a bone plate sleeve through the navigation plate, and screwing in the locking piece;
(5) And removing the bone plate sleeve, continuing to apply force to the first handle and the second handle, so that the first clamping plate is far away from the second clamping plate, and the bone plate is separated from the first clamping plate and the second clamping plate, and removing the bone plate aiming device.
The bone plate aiming device is suitable for installing locking pieces such as metal screws and the like during the minimally invasive surgery of the straight metal bone plate, has simple structural design, low processing cost and convenient use, and is a good choice in clinical surgery; the structure of the guide piece is convenient to separate from the bone plate, and the sliding groove of the guide piece is provided with the bone plate sleeve so as to finish the nailing work;
the navigation piece is not contacted with the bone plate, and the bone plate and the navigation piece are not required to be separated after an operation, so that the operation time is saved; in addition, the navigation piece is detachably connected with the bone plate aiming device body, when the used bone plates are different, only the navigation piece is needed to be replaced, the whole bone plate aiming device is not needed to be replaced, the operation cost is saved, and the application range is wide;
the hand-held part is arranged to be more in line with the human mechanics, the use is convenient, the hand-held part and the hand-held rod can be rotatably connected, and the position of the clamping rod can be conveniently adjusted, so that the bone fracture plate can be inserted into different positions;
the cross brace can effectively limit the travel of the first clamping rod and the second clamping rod, and is beneficial to stably adjusting the distance between the first clamping plate and the second clamping plate so as to quickly correspond to the width of the bone fracture plate to be inserted.
The applicant declares that the above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be apparent to those skilled in the art that any changes or substitutions that are easily conceivable within the technical scope of the present invention disclosed by the present invention fall within the scope of the present invention and the disclosure.
Claims (7)
1. A bone plate targeting device, comprising: a clamping unit for clamping the bone plate and a navigation member and a bumper member for alignment with the holes in the bone plate;
the navigation piece comprises a navigation plate provided with holes;
the navigation piece is connected with the clamping unit, and the holes on the navigation plate correspond to the holes on the bone fracture plate;
the clamping unit comprises a first clamping part and a second clamping part;
the first clamping part comprises a first handheld part, a first clamping rod and a first clamping plate which are sequentially connected, and a first included angle is formed between the first clamping rod and the first clamping plate;
the second clamping part comprises a second handheld part, a second clamping rod and a second clamping plate which are sequentially connected, and a second included angle is formed between the second clamping rod and the second clamping plate;
the first handheld part and the second handheld part are connected through a first connecting shaft, and the degree of the first included angle and the degree of the second included angle do not comprise 0 degrees or 180 degrees independently;
the navigation piece is connected with the first clamping rod and the second clamping rod;
the first hand-held part comprises a first handle and a first connecting rod, one end of the first connecting rod is connected with the first handle, and the other end of the first connecting rod is connected with the first clamping rod;
the second handheld part comprises a second handle and a second connecting rod, one end of the second connecting rod is connected with the second handle, and the other end of the second connecting rod is connected with the second clamping rod;
the first connecting rod is provided with a first connecting hole, the second connecting rod is provided with a second connecting hole, and the first connecting hole is connected with the second connecting hole through a first connecting shaft; the first connecting shaft is a pin column and penetrates through the first connecting hole and the second connecting hole;
the navigation piece comprises a navigation plate, a parallel adjusting table and a connecting part which are connected in sequence, and the connecting part is detachably connected with the first clamping rod and the second clamping rod;
the navigation board is a flat board;
the longitudinal section of the parallel adjusting table is triangular or trapezoidal;
the connecting part comprises a clamping column, the first connecting rod and the second connecting rod are provided with clamping grooves, and the clamping column is fixed in the clamping grooves;
the parallel adjusting table is arranged between the navigation board and the connecting part;
when the navigation piece is connected with the clamping unit, one surface of the parallel adjusting table is abutted to the first clamping rod and the second clamping rod, so that the navigation plate can be arranged parallel to the bone fracture plate.
2. The bone plate targeting device of claim 1 wherein the first and second connecting rods are disposed in parallel.
3. The bone plate aiming device of claim 1, wherein the first clamping rod is rotatably fixed to the first connecting rod; the second clamping rod is rotatably fixed on the second connecting rod.
4. The bone plate targeting device of claim 1 wherein the first clamping bar is in meshed connection with a first connecting bar; the second clamping rod is connected with the second connecting rod in a meshed mode.
5. The bone plate aiming device according to claim 1, wherein an elastic member is further arranged between the first hand-held portion and the second hand-held portion, and two ends of the elastic member are respectively fixed to the first hand-held portion and the second hand-held portion.
6. The bone plate aiming device according to claim 1, wherein the first clamping rod and the second clamping rod are arranged in parallel, a first groove is formed in one side, close to the second clamping rod, of the first clamping rod, a second groove is formed in one side, close to the first clamping rod, of the second clamping rod, and two ends of the buffer piece are respectively arranged in the first groove and the second groove; the buffer piece comprises a cross stay bar, the cross stay bar comprises two rods which are rotatably arranged in a crossing way, and a second connecting shaft is arranged at the crossing part.
7. The bone plate aiming device according to claim 1, wherein the first clamping plate is arranged parallel to the second clamping plate and the navigation plate is arranged parallel to the first clamping plate and the second clamping plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910667780.8A CN110313981B (en) | 2019-07-23 | 2019-07-23 | Bone plate aiming device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910667780.8A CN110313981B (en) | 2019-07-23 | 2019-07-23 | Bone plate aiming device and method |
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| CN110313981A CN110313981A (en) | 2019-10-11 |
| CN110313981B true CN110313981B (en) | 2024-04-05 |
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| JP4185570B2 (en) * | 2005-07-01 | 2008-11-26 | 方仁 濱崎 | Tong |
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| WO2012161977A1 (en) * | 2011-05-24 | 2012-11-29 | Synthes Usa, Llc | Elbow compression instrument |
| CN204951140U (en) * | 2015-08-26 | 2016-01-13 | 黄迪超 | Sufficient ankle part location sight |
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| Publication number | Publication date |
|---|---|
| CN110313981A (en) | 2019-10-11 |
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