CN107088089B - Acetabulum nail placement navigator and acetabulum nail placement device - Google Patents
Acetabulum nail placement navigator and acetabulum nail placement device Download PDFInfo
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- CN107088089B CN107088089B CN201710474521.4A CN201710474521A CN107088089B CN 107088089 B CN107088089 B CN 107088089B CN 201710474521 A CN201710474521 A CN 201710474521A CN 107088089 B CN107088089 B CN 107088089B
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- acetabulum
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- 210000000588 acetabulum Anatomy 0.000 title claims abstract description 89
- 230000000149 penetrating effect Effects 0.000 claims abstract description 25
- 210000000078 claw Anatomy 0.000 claims description 38
- 238000009434 installation Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 description 21
- 230000035515 penetration Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 206010000397 Acetabulum fracture Diseases 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 208000002658 Intra-Articular Fractures Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 238000011269 treatment regimen Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides an acetabular nail navigator and an acetabular nail device, and relates to the field of medical instruments. The acetabulum nail placement navigator comprises a fixing part, a connecting rod and a needle penetrating column, wherein the fixing part is connected with one end of the connecting rod, and the needle penetrating column is movably connected with the other end of the connecting rod, so that the needle penetrating column can move towards the fixing part to clamp the acetabulum rear column between the fixing part and the needle penetrating column. The acetabulum nail placement navigator provided by the invention supports the acetabulum from two sides of the acetabulum, thereby realizing the fixation of the acetabulum.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an acetabular nail navigator and an acetabular nail device.
Background
Health is a continuous pursuit of human beings, everyone hopes to be able to live healthily, but in practice, most people suffer from various diseases in life, meanwhile, along with continuous development of economy and improvement of living standard of people, people also put higher demands on health problems of people, wherein fracture is most common and one of main threats to health of people, especially in recent years, pelvis and acetabulum fracture cases are in an increasing trend due to factors such as traffic accidents, the complexity and difficulty of operation are also increased, and operation risks are increased.
Acetabulum is an important weight-bearing joint for forming lower limbs of a human body, and the acetabulum fracture belongs to intra-articular fracture, is often caused by severe violent injury, and is often found in young people, wherein the acetabular fracture involves a rear column quite often. Treatment is based on a variety of factors such as clinical presentation, imaging assessment, etc. the treatment regimen should be selected. Anatomical reduction, firm fixation, and early onset of active and passive functional exercise are required.
In clinical treatment, for crushed acetabulum posterior column fracture, no better acetabulum posterior column resetting and nail placement navigator exists at present, the acetabulum posterior column is mainly reset and fixed by manual reduction and then is driven into a posterior column lag screw by bare hands, the implantation of the posterior column lag screw is difficult, the error of the bare hand nail placement is larger, the acetabulum fossa is easy to drive into, the fixing effect on the acetabulum is poor, and the nail placement direction is inaccurate.
Disclosure of Invention
The invention aims to provide an acetabular nail navigator, which aims to solve the problem that the existing acetabular nail navigator is poor in fixing effect.
The invention aims to provide an acetabular nail-setting device, which aims to solve the problem that the existing acetabular nail-setting navigator is poor in fixing effect.
The invention provides a technical scheme that:
the utility model provides a nail navigator is put to acetabulum for reset, fixed acetabulum post, includes fixed part, connecting rod and needle penetrating column, the fixed part with the one end of connecting rod is connected, the needle penetrating column with the other end swing joint of connecting rod makes the needle penetrating column can be directed the fixed part motion, in order to with the acetabulum post holder in fixed part with between the needle penetrating column.
Further, in a preferred embodiment of the present invention, the fixing portion includes a fixing portion body and a third connecting portion, the third connecting portion is connected to one end of the connecting rod, and the fixing portion body is disposed at one end of the third connecting portion away from the connecting rod.
Further, in a preferred embodiment of the present invention, the fixing portion body includes a first claw portion, a second claw portion and a third claw portion, and the first claw portion, the second claw portion and the third claw portion are all connected to an end of the third connecting portion, which is far from the connecting rod.
Further, in a preferred embodiment of the present invention, the first claw portion, the second claw portion and the third claw portion are distributed on the first connecting portion in a semicircle.
Further, in a preferred embodiment of the present invention, the third connecting portion is provided with a receiving hole, and the receiving hole is coaxially disposed with the needle-threading column.
Further, in a preferred embodiment of the present invention, the connecting rod includes a connecting rod body and a hook portion, one end of the connecting rod body is connected with one end of the hook portion, one end of the connecting rod body away from the hook portion is connected with the needle-threading column, and one end of the hook portion away from the connecting rod body is connected with the fixing portion.
Further, in a preferred embodiment of the present invention, the acetabular nailing navigator further includes a holding portion, and one end of the holding portion is connected to one end of the connecting rod near the needle penetrating post.
Further, in a preferred embodiment of the present invention, the needle-threading column is movably connected with the hand-holding part.
Further, in a preferred embodiment of the present invention, the acetabular nail navigator further includes a resetting device, the resetting device is disposed on the connecting rod and is movably connected with the connecting rod, and the resetting device moves along a direction perpendicular to the connecting rod so as to prop against the acetabulum.
The utility model provides an acetabulum is put nail ware, includes guiding pin and acetabulum and is put nail navigator, be provided with the through-hole in the needle passing post, the guiding pin with the through-hole cooperation, the acetabulum is put nail navigator include fixed part, connecting rod and needle passing post, fixed part with the one end of connecting rod is connected, the needle passing post with the other end swing joint of connecting rod, make the needle passing post can be directed the fixed part motion, with the acetabulum post holder in fixed part with between the needle passing post.
The acetabulum nail placement navigator provided by the invention has the beneficial effects that: in the invention, the acetabulum is clamped between the fixing part and the needle penetrating column, and the fixing part and the needle penetrating column are respectively propped against two sides of the acetabulum to fix the acetabulum. The acetabulum nail placement navigator provided by the invention supports the acetabulum from two sides of the acetabulum, thereby realizing the fixation of the acetabulum.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an acetabular nailing device according to an embodiment of the invention.
Fig. 2 is a schematic structural view of an acetabular nail navigator of the acetabular nail stapler according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a fixing portion of an acetabular nail navigator of an acetabular nail stapler according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a first view of a connecting rod of an acetabular nail navigator of an acetabular nail stapler according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a second view of a connecting rod of an acetabular nail navigator of an acetabular nail stapler according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a first view of a connecting rod of an acetabular nail navigator of an acetabular nail stapler according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a second view of a connecting rod of an acetabular nail navigator of an acetabular nail stapler according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of a first abutment of an acetabular nail navigator reduction apparatus of an acetabular nail stapler according to an embodiment of the present invention.
Fig. 9 is a schematic structural view of a second abutment of the acetabular nail navigator reduction apparatus of the acetabular nail stapler according to an embodiment of the present invention.
Fig. 10 is a schematic structural view of an acetabular nail navigator handle of an acetabular nail stapler according to an embodiment of the present invention.
Icon: 10-acetabular nailing device; 100-acetabulum nail placement navigator; 110-a fixing part; 112-a fixed part body; 1122-a first jaw portion; 1124-second jaw portion; 1126-a third jaw portion; 114-a third connection; 1142-receiving hole; 120-connecting rods; 122-connecting rod body; 1222-a first segment; 1224-second segment; 1226-third stage; 1228-a first connection plate; 1229-a second connection plate; 124-hook portion; 126-a third mount; 1262-a first mounting hole; 130-penetrating needle column; 132-needle-threading column body; 134-a third abutment; 1342-a third abutment body; 1344-third connection; 1346-third mounting hole; 136-working part; 1362-second mounting holes; 140-resetting means; 142-fixing sleeve; 144-a holding piece; 1442-a first abutment; 14422-first mount; 14424-first connecting portion; 14426—a first abutment; 1444-a second abutment; 14442-second mount; 14444-a second connection; 14446-a second abutment; 146-fixing piece; 148-locking member; 150-a hand-held part; 152-a handpiece body; 154-fourth mount; 1542-fourth mounting holes; 200-guiding needle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be understood that the azimuth or positional relationship indicated by the terms "upper", "inner", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship conventionally put in place when the inventive product is used, or the azimuth or positional relationship conventionally understood by those skilled in the art, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," "fourth," and the like are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to 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.
Examples
Referring to fig. 1, the present embodiment provides an acetabular nailing device 10, and the acetabular nailing device 10 provided in the present embodiment supports an acetabular posterior column from two sides of an acetabulum and performs pressurized reposition on the acetabular posterior column, thereby realizing reposition and fixation of the acetabular posterior column.
The acetabular nailing device 10 comprises an acetabular nailing navigator 100 and a guide needle 200, wherein the guide needle 200 is matched with the acetabular nailing navigator 100.
Referring to fig. 2, the present embodiment provides an acetabular nail navigator 100, where the acetabular nail navigator 100 in the present embodiment supports an acetabular posterior column from a longitudinal direction of an acetabulum, so as to realize longitudinal reposition of the acetabulum, thereby realizing longitudinal reposition and fixation of the acetabular posterior column.
The acetabulum nail placement navigator 100 comprises a fixing part 110, a connecting rod 120, a needle penetrating column 130, a resetting device 140 and a handheld part 150, wherein the fixing part 110 is connected with one end of the connecting rod 120, the needle penetrating column 130 is movably connected with the other end of the connecting rod 120, the handheld part 150 is connected with one end, close to the needle penetrating column 130, of the connecting rod 120, and the resetting device 140 is arranged on the connecting rod 120 and is movably connected with the connecting rod 120.
Referring to fig. 3, in the present embodiment, the fixing portion 110 includes a fixing portion body 112 and a third connecting portion 114, the third connecting portion 114 is connected to one end of the connecting rod 120, and the fixing portion body 112 is connected to one end of the third connecting portion 114 away from the connecting rod 120.
The fixing portion body 112 includes a first claw portion 1122, a second claw portion 1124 and a third claw portion 1126, and the first claw portion 1122, the second claw portion 1124 and the third claw portion 1126 are all connected to an end of the third connecting portion 114 away from the connecting rod 120.
In the present embodiment, the fixing portion body 112 includes the first claw portion 1122, the second claw portion 1124, and the third claw portion 1126, but the present invention is not limited thereto, and in other embodiments of the present invention, the fixing portion body 112 may include a fourth claw portion or the like, and the effects of the present embodiment can be achieved by the equivalent means of the present embodiment, and the present invention is within the scope of protection of the present invention.
In the present embodiment, the first claw portion 1122, the second claw portion 1124, and the third claw portion 1126 are distributed in a semicircle on the third connecting portion 114. Can hook the ischial spines of the acetabulum rear column, by longitudinally pressurizing and guiding the rear column and driving the guide needle 200 down, the longitudinal resetting of the acetabulum and the accurate effect of the lag screw implantation are improved, and the working effect of the acetabulum nail-placing navigator 100 is ensured.
In the present embodiment, the third connecting portion 114 has a circular fixing area, and the first claw portion 1122, the second claw portion 1124, and the third claw portion 1126 are distributed in a semicircular area.
In this embodiment, the first claw portion 1122, the second claw portion 1124 and the third claw portion 1126 are unevenly distributed in the semicircular area, so that the effect of fixing the post ischial spines of the acetabulum can be improved, and the working effect of the acetabular nail placement navigator 100 can be ensured.
In the present embodiment, the first claw portion 1122, the second claw portion 1124, and the third claw portion 1126 are distributed in a semicircular region. However, the present invention is not limited thereto, and in other embodiments of the present invention, the distribution areas of the first, second and third claw portions 1122, 1124 and 1126 may be smaller than a semicircle or slightly larger than a semicircle. The equivalent schemes of the embodiment can achieve the effects of the embodiment, and are all within the protection scope of the invention.
In this embodiment, the needle-passing column 130 moves in a direction approaching the fixing portion 110, and the acetabulum is held between the fixing portion 110 and the needle-passing column 130. Specifically, the fixing portion 110 hooks the ischial spines of the posterior acetabular column to abut against one side of the acetabulum. The needle-penetrating column 130 abuts against the other side of the acetabulum, so that the acetabulum is clamped between the fixing portion 110 and the needle-penetrating column 130.
In this embodiment, the third connecting portion 114 is provided with a receiving hole 1142, and the receiving hole 1142 is disposed coaxially with the needle-threading column 130. The guide needle 200 can be passed through the acetabulum and mated with the receiving bore 1142.
In this embodiment, the needle penetrating column 130 moves in a direction approaching the fixing portion 110, so that the acetabulum is clamped between the fixing portion 110 and the needle penetrating column 130, the fixing portion 110 and the needle penetrating column 130 are abutted against two sides of the acetabulum, and the guide needle 200 moves in a direction approaching the fixing portion 110, passes through the acetabulum and is matched with the accommodating hole 1142.
Referring to fig. 4, the connecting rod 120 includes a connecting rod body 122, a hook portion 124 and a third mounting portion 126, one end of the connecting rod body 122 is connected with one end of the hook portion 124, the other end of the connecting rod body 122 is connected with the third mounting portion 126, and one end of the hook portion 124 away from the connecting rod body 122 is connected with the fixing portion 110. The penetration pin 130 is movably connected with the third mounting portion 126.
Referring to fig. 5, in the present embodiment, a first mounting hole 1262 is provided on the third mounting portion 126, and the needle passing column 130 is engaged with the first mounting hole 1262. The needle post 130 is movable relative to the first mounting hole 1262. In this embodiment, the penetration pin 130 moves in a direction approaching or moving away from the fixing portion 110.
Preferably, in this embodiment, the first mounting hole 1262 is coaxial with the receiving hole 1142. The first mounting hole 1262 is coaxial with the receiving hole 1142 to enable the guide needle 200 to be selectively received within the receiving hole 1142.
In this embodiment, the needle-threading post 130 is threadably engaged with the first mounting hole 1262.
In the present embodiment, the needle-threading post 130 is screwed with the first mounting hole 1262, but the present invention is not limited thereto, and in other embodiments of the present invention, the needle-threading post 130 and the first mounting hole 1262 may be screwed with each other, and the equivalent solution to the present embodiment can achieve the effects of the present embodiment, which is within the scope of the present invention.
In this embodiment, the connecting rod body 122 includes a first segment 1222, a second segment 1224, and a third segment 1226, where the first segment 1222, the second segment 1224, and the third segment 1226 are sequentially connected, one end of the first segment 1222 away from the second segment 1224 is connected to the third mounting portion 126, and one end of the third segment 1226 away from the second segment 1224 is connected to the hook portion 124.
The second section 1224 includes a first web 1228 and a second web 1229, each of the first web 1228 and the second web 1229 being connected to the first section 1222 and the third section 1226, respectively. The first web 1228 is disposed in parallel with the second web 1229. In this embodiment, the reset device 140 is coupled to the first connecting plate 1228 and is movable relative to the first connecting plate 1228.
In this embodiment, the second section 1224 includes a first connecting plate 1228 and a second connecting plate 1229. But is not limited thereto, in other embodiments of the invention, the reset device 140 can be directly coupled to the second segment 1224. The equivalent schemes of the embodiment can achieve the effects of the embodiment, and are all within the protection scope of the invention.
Referring to fig. 6 and 7, the needle passing column 130 includes a needle passing column body 132, a third supporting portion 134 and a working portion 136, wherein the third supporting portion 134 is connected with one end of the needle passing column body 132, and the working portion 136 is connected with one end of the needle passing column body 132 far from the third supporting portion 134. In the present embodiment, the working portion 136 drives the needle passing column body 132 to move relative to the connecting rod 120.
The penetration needle post 130 is provided with a through hole, which is engaged with the guide needle 200.
In the present embodiment, the through hole is provided on the needle-threading body 132.
In the present embodiment, the needle-threading column 130 includes the needle-threading column body 132, the third supporting portion 134 and the working portion 136, but not limited thereto, the needle-threading column 130 may include only the needle-threading column body 132 and the third supporting portion 134, and the needle-threading column body 132 may be directly rotated or pushed to move the needle-threading column body 132 relative to the connecting rod 120, i.e., in a direction approaching or moving away from the fixing portion 110.
The needle-punching body 132 is engaged with the first mounting hole 1262, and the needle-punching body 132 is movable with respect to the first mounting hole 1262. In the present embodiment, the needle-threading body 132 moves in a direction approaching or moving away from the fixing portion 110.
In the present embodiment, the needle-threading body 132 is engaged with the first mounting hole 1262, but the present invention is not limited thereto, and in other embodiments of the present invention, the third abutting portion 134 may be engaged with the first mounting hole 1262, or the working portion 136 may be engaged with the first mounting hole 1262, and the equivalent of the present embodiment can achieve the effects of the present embodiment, and all the embodiments are within the scope of the present invention.
In this embodiment, the first mounting hole 1262 is threadably coupled to the needle-threading body 132.
In the present embodiment, the first mounting hole 1262 is screwed to the needle-threading body 132, but the present invention is not limited thereto, and in other embodiments of the present invention, the first mounting hole 1262 may be connected to the needle-threading body 132 by other means. The equivalent schemes of the embodiment can achieve the effects of the embodiment, and are all within the protection scope of the invention.
The working portion 136 is connected to an end of the needle-threading body 132 away from the third abutting portion 134, and in this embodiment, the working portion 136 is located at an end of the needle-threading body 132 away from the fixing portion 110. The working portion 136 is provided with a second mounting hole 1362, the second mounting hole 1362 communicates with the through hole, and the guide pin 200 is fitted with the second mounting hole 1362 and the through hole.
In this embodiment, the working portion 136 is a nut. The working portion 136 cooperates with the quincuncial opener, the quincuncial opener rotates the working portion 136, and the needle-threading column body 132 rotates relative to the third mounting portion 126, so that the needle-threading column 130 moves towards the direction close to the fixing portion 110 and abuts against one side of the acetabulum.
In this embodiment, the working portion 136 is a nut, and cooperates with the plum blossom opener to move the needle-threading column 130 relative to the third mounting portion 126. However, the present invention is not limited thereto, and the working portion 136 may have other structures in other embodiments of the present invention. The equivalent schemes of the embodiment can achieve the effects of the embodiment, and are all within the protection scope of the invention.
In this embodiment, the working portion 136 is a hex nut.
In the present embodiment, the working portion 136 is a hexagonal nut, but the present invention is not limited thereto, and in other embodiments of the present invention, the working portion 136 may be another nut, and the equivalent of the present embodiment can achieve the effects of the present embodiment, and all the embodiments are within the scope of the present invention.
In the present embodiment, the third abutting portion 134 includes a third abutting portion body 1342 and a third connecting portion 1344, one end of the third connecting portion 1344 is connected to one end of the needle-threading column 130 away from the working portion 136, and the other end is connected to the third abutting portion body 1342. The third abutting portion body 1342 abuts against one side of the acetabulum.
In this embodiment, the third supporting portion body 1342 is a plurality of protrusions, the third connecting portion 1344 is provided with a third mounting hole 1346, the third mounting hole 1346 is communicated with the through hole, and the guide needle 200 is matched with the second mounting hole 1362, the through hole and the third mounting hole 1346.
The rotation works to move the penetration pole 130 relative to the connection rod 120, and in this embodiment, the penetration pole 130 moves in a direction approaching or moving away from the fixing portion 110. The third supporting portion body 1342 abuts against one side of the acetabulum, the guide needle 200 moves towards the direction approaching the fixing portion 110, and passes through the acetabulum to be matched with the accommodating hole 1142.
With continued reference to fig. 2, the resetting device 140 includes a fixing sleeve 142, a supporting member 144, a fixing member 146 and a locking member 148, wherein the fixing sleeve 142 is sleeved on the connecting rod 120, and the supporting member 144 is selectively disposed in the fixing sleeve 142 and movably connected with the fixing sleeve 142. The fixing member 146 cooperates with the abutting member 144 and the fixing sleeve 142, and the fixing member 146 moves relative to the fixing sleeve 142 to move the abutting member 144 relative to the fixing sleeve 142. Retaining member 148 is movably coupled to retaining sleeve 142.
In this embodiment, the fixing sleeve 142 is sleeved on the first connecting plate 1228, and can move relative to the first connecting plate 1228 in a direction away from or towards the fixing portion 110.
In the present embodiment, the abutment 144 is perpendicular to the connecting rod 120 and is movable in a direction perpendicular to the connecting rod 120. Against the posterior acetabular column medial surface in a direction perpendicular to the needle-threading column 130.
In the present embodiment, the propping member 144 includes a first propping member 1442 and a second propping member 1444, and the first propping member 1442 and the second propping member 1444 mutually prop against each other. The first propping piece 1442 is selectively arranged in the fixed sleeve 142, the first propping piece 1442 is matched with the fixed sleeve 142 and the fixed piece 146, and the fixed piece 146 moves relative to the fixed sleeve 142, so that the first propping piece 1442 moves relative to the fixed sleeve 142.
One end of the second supporting member 1444 is supported by the first supporting member 1442, and the second supporting member 1444 is movably connected with the fixing sleeve 142. The fixing member 146 moves relative to the fixing sleeve 142, so that the first supporting member 1442 and the second supporting member 1444 move relative to the fixing sleeve 142, the first supporting member 1442 and the second supporting member 1444 are separated from the fixing sleeve 142, and one end of the second supporting member 1444 away from the first supporting member 1442 supports against the acetabulum.
In the present embodiment, the propping member 144 includes the first propping member 1442 and the second propping member 1444, but not limited thereto, and in other embodiments of the present invention, the propping member 144 may include only the first propping member 1442 or only the second propping member 1444, the propping member 144 includes the first propping member 1442, and an end of the first propping member 1442 away from the fixing member 146 directly butts against the acetabulum. The abutment 144 includes a second abutment 1444, and an end of the second abutment 1444 remote from the acetabulum is directly connected with the fixing piece 146. The equivalent schemes of the embodiment can achieve the effects of the embodiment, and are all within the protection scope of the invention.
Referring to fig. 8, in the present embodiment, the first supporting member 1442 includes a first mounting portion 14422, a first connecting portion 14424 and a first supporting portion 14426, the first mounting portion 14422 is movably connected to the fixing sleeve 142, the first supporting portion 14426 is matched with the second supporting member 1444, one end of the first mounting portion 14422 is connected to the first connecting portion 14424, and one end of the first connecting portion 14424 away from the first mounting portion 14422 is matched with the first supporting member 1442. The end of the first mounting portion 14422 remote from the first connecting portion 14424 mates with the securing member 146.
In the present embodiment, the first mounting portion 14422 is threadedly coupled to the retainer 146. The fixing member 146 is provided with external threads, the first mounting portion 14422 is provided with internal threads, and the first mounting portion 14422 is engaged with the fixing member 146 by the internal threads and the external threads.
In the present embodiment, the first mounting portion 14422 and the fixing piece 146 are connected by screw threads. However, in other embodiments of the present invention, the first attachment portion 14422 and the fixing member 146 may be engaged by other means, and the same scheme as that of the present embodiment can achieve the effects of the present embodiment, which is within the scope of the present invention.
In the present embodiment, the first mounting portion 14422 is screwed to the fixing sleeve 142. The outer surface of the first mounting portion 14422 is provided with external threads, the fixing sleeve 142 is internally provided with internal threads, and the first mounting portion 14422 is matched with the fixing sleeve 142 through the internal threads and the external threads.
In the present embodiment, the first attachment portion 14422 and the fixing sleeve 142 are screwed together. However, in other embodiments of the present invention, the first attachment portion 14422 and the fixing sleeve 142 may be engaged by other means, and the same or equivalent to the present embodiment can achieve the effects of the present embodiment, which is within the scope of the present invention.
In this embodiment, the fixing member 146 is screwed to the fixing sleeve 142.
In the present embodiment, the fixing member 146 is screwed with the first abutment member 1442. The fixing member 146 is rotated, and the fixing member 146 drives the first supporting member 1442 to rotate relative to the fixing sleeve 142 and move in a direction away from the fixing sleeve 142, so that the first supporting member 1442 is separated from the fixing sleeve 142.
In the present embodiment, one end of the first abutment 14426 is a protrusion, and when the abutment 144 includes only the first abutment 1442, the first abutment 14426 directly abuts against the acetabulum. One end of the first propping part 14426 propping against the acetabulum is a bulge, so that the first propping part 14426 can be in single-point contact with the acetabulum, and the fixing effect of the acetabulum is ensured.
Referring to fig. 9, the second supporting member 1444 includes a second mounting portion 14442, a second connecting portion 14444 and a second supporting portion 14446, one end of the second connecting portion 14444 is connected to the second mounting portion 14442, the other end is connected to the second supporting portion 14446, the second mounting portion 14442 is matched with the first supporting member 1442, and the second connecting portion 14444 is movably connected to the fixing sleeve 142. The second abutment 14446 selectively abuts the acetabulum.
In this embodiment, the second mounting portion 14442 is movably connected to the fixing sleeve 142 by threads. The outer surface of the second mounting portion 14442 is provided with external threads, and is engaged with the internal threads of the fixing sleeve 142, thereby achieving movable connection with the fixing sleeve 142.
In the present embodiment, the second mounting portion 14442 is movably connected to the fixing sleeve 142 by threads. But is not limited thereto, in other embodiments of the present invention, the second mounting portion 14442 and the fixed sleeve 142 may be movably coupled in other manners. The equivalent schemes of the embodiment can achieve the effects of the embodiment, and are all within the protection scope of the invention.
In the present embodiment, the second attachment portion 14442 is engaged with the first abutment 14426 near one end of the first abutment 1442.
In this embodiment, the second abutment 14446 is a plurality of protrusions, and the plurality of protrusions selectively interfere with the acetabulum. The protrusions are in contact with the acetabulum, so that the contact area between the second supporting portion 14446 and the acetabulum can be increased, and the fixing effect of the resetting device 140 on the acetabulum is improved.
In this embodiment, the fixing member 146 is rotated, so that the first supporting member 1442 and the second supporting member 1444 rotate relative to the fixing sleeve 142 and move in a direction away from the fixing sleeve 142, the first supporting member 1442 and the second supporting member 1444 are separated from the fixing sleeve 142 by rotating the fixing member 146, the second supporting portion 14446 supports the acetabulum from the direction perpendicular to the connecting rod 120, supports the acetabulum from the side surface of the acetabulum, and fixes the acetabulum from different directions of the acetabulum, thereby improving the fixing effect of the acetabular nail navigator 100 on the acetabulum.
The locking member 148 is movably connected with the fixing sleeve 142, and the locking member 148 selectively abuts against the connecting rod 120.
In this embodiment, the fixing sleeve 142 is movable on the connecting rod 120, and the locking member 148 is used to fix the fixing sleeve 142 relative to the connecting rod 120.
When the fixing sleeve 142 is fixed, the locking member 148 is pressed to abut the locking member 148 against the connecting rod 120, thereby fixing the fixing sleeve 142.
One end of the holding portion 150 is connected to one end of the connecting rod 120 near the needle penetrating post 130, and in this embodiment, the holding portion 150 is connected to a side of the third mounting portion 126 away from the connecting rod body 122.
Referring to fig. 10, in the present embodiment, the hand-holding portion 150 includes a hand-holding portion body 152 and a fourth mounting portion 154, the fourth mounting portion 154 is connected to the hand-holding portion body 152, the fourth mounting portion 154 is connected to the third mounting portion 126, a fourth mounting hole 1542 is provided on the fourth mounting portion 154, and the fourth mounting hole 1542 communicates with the third mounting hole 1346. The post body 132 mates with the third 1346 and fourth 1542 mounting holes.
The working principle of the acetabular nail navigator 100 and the acetabular nail navigator 10 provided by the present embodiment: in this embodiment, the first, second and third jaw portions 1122, 1124, 1126 secure the posterior acetabular post ischial spines. The working portion 136 is turned to move the needle passing column 130 in a direction approaching the fixing portion 110, and the third abutting portion body 1342 abuts against the other side of the acetabulum to clamp the acetabulum between the fixing portion 110 and the needle passing column 130. The reduction device 140 abuts the acetabulum from a direction perpendicular to the connecting rod 120. The fixing member 146 is rotated to move the first and second abutment members 1442 and 1444 in a direction approaching the acetabulum, and the second abutment 14446 abuts the acetabulum from the side of the acetabulum. After the acetabular posterior column is fixed, the guide needle 200 passes through the acetabulum to be matched with the accommodating hole 1142, and a nail hole is formed on the acetabular posterior column.
As described above, in the present embodiment, the acetabulum nail guide 100 and the acetabulum nail guide 10 are provided, and the acetabulum is clamped between the fixing portion 110 and the needle passing column 130 to fix the acetabulum. In this embodiment, the reset device 140 is perpendicular to the connecting rod 120, so that the reset device 140 abuts against the inner side surface of the acetabular posterior column from the direction perpendicular to the penetrating needle column 130 and the fixing portion 110, thereby improving the fixing effect of the acetabular nail navigator 100 on the acetabulum, and further ensuring the working effect of the acetabular nail navigator 100.
The above description is only of the preferred embodiments 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 (9)
1. The acetabulum nail placement navigator is used for resetting and fixing an acetabulum rear column and is characterized by comprising a fixing part, a connecting rod and a needle penetrating column, wherein the fixing part is connected with one end of the connecting rod, the needle penetrating column is movably connected with the other end of the connecting rod, so that the needle penetrating column can move towards the fixing part to clamp the acetabulum rear column between the fixing part and the needle penetrating column, and the needle penetrating column is used for allowing a guide needle to pass through;
the acetabulum nail placement navigator further comprises a resetting device which is arranged on the connecting rod and is movably connected with the connecting rod, and the resetting device moves along the direction perpendicular to the connecting rod so as to prop against the acetabulum;
the resetting device comprises a fixed sleeve, a supporting piece, a fixed piece and a locking piece, wherein the fixed sleeve is sleeved on the connecting rod, and the supporting piece is selectively arranged in the fixed sleeve and is movably connected with the fixed sleeve; the locking piece is movably connected with the fixed sleeve;
the propping piece comprises a first propping piece and/or a second propping piece;
the first supporting part comprises a first mounting part, a first connecting part and a first supporting part, wherein the first mounting part is movably connected with the fixed sleeve, one end of the first mounting part is connected with the first connecting part, one end of the first connecting part, which is far away from the first mounting part, is matched with the first supporting part, one end of the first mounting part, which is far away from the first connecting part, is matched with the fixed part, one end of the first supporting part is a bulge, and the first supporting part is used for supporting with the acetabulum or is matched with the second supporting part;
the second supporting piece comprises a second installation part, a second connection part and a second supporting part, one end of the second connection part is connected with the second installation part, the other end of the second connection part is connected with the second supporting part, the second installation part is matched with the first supporting piece, the second connection part is movably connected with the fixed sleeve, and the second supporting part selectively supports the acetabulum.
2. The acetabular nailing navigator of claim 1, wherein the fixation portion includes a fixation portion body and a third connection portion, the third connection portion being connected with one end of the connecting rod, the fixation portion body being disposed at one end of the third connection portion remote from the connecting rod.
3. The acetabular nail navigator according to claim 2, wherein the fixed portion body includes a first claw portion, a second claw portion and a third claw portion, the first claw portion, the second claw portion and the third claw portion are all connected to one end of the third connecting portion away from the connecting rod.
4. The acetabular nail navigator of claim 3, wherein the first jaw, the second jaw and the third jaw are distributed in a semicircle on the third connecting portion.
5. The acetabular nail navigator according to claim 2, wherein a receiving hole is provided on the third connecting portion, the receiving hole being coaxially provided with the needle-threading column.
6. The acetabular nail navigator according to claim 1, wherein the connecting rod comprises a connecting rod body and a hook-shaped portion, one end of the connecting rod body is connected with one end of the hook-shaped portion, one end of the connecting rod body away from the hook-shaped portion is connected with the needle-threading column, and one end of the hook-shaped portion away from the connecting rod body is connected with the fixing portion.
7. The acetabular nailing navigator of claim 1, further comprising a handheld portion having one end connected to one end of the connecting rod proximate to the needle passing post.
8. The acetabular nailing navigator of claim 7, wherein the needle threading column is movably connected with the handpiece.
9. An acetabular nailing device comprising a guide needle and an acetabular nailing navigator according to any one of claims 1 to 8, wherein a through hole is provided in the penetrating needle post, and the guide needle is engaged with the through hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474521.4A CN107088089B (en) | 2017-06-21 | 2017-06-21 | Acetabulum nail placement navigator and acetabulum nail placement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474521.4A CN107088089B (en) | 2017-06-21 | 2017-06-21 | Acetabulum nail placement navigator and acetabulum nail placement device |
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| CN107088089A CN107088089A (en) | 2017-08-25 |
| CN107088089B true CN107088089B (en) | 2024-01-19 |
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| CN2678585Y (en) * | 2003-10-13 | 2005-02-16 | 洪华兴 | Screw fixer of protrusio acetabuli |
| CN201108485Y (en) * | 2007-12-25 | 2008-09-03 | 山东省立医院 | Micro-wound automatic resetting machine of fracture of acetabulum |
| CN201263713Y (en) * | 2008-09-04 | 2009-07-01 | 潘伟波 | Bone fracture operation repositor with aiming function |
| CN207627394U (en) * | 2017-06-21 | 2018-07-20 | 南方医科大学第三附属医院 | A kind of acetabular bone sets nail omniselector and acetabular bone sets nail device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2678585Y (en) * | 2003-10-13 | 2005-02-16 | 洪华兴 | Screw fixer of protrusio acetabuli |
| CN201108485Y (en) * | 2007-12-25 | 2008-09-03 | 山东省立医院 | Micro-wound automatic resetting machine of fracture of acetabulum |
| CN201263713Y (en) * | 2008-09-04 | 2009-07-01 | 潘伟波 | Bone fracture operation repositor with aiming function |
| CN207627394U (en) * | 2017-06-21 | 2018-07-20 | 南方医科大学第三附属医院 | A kind of acetabular bone sets nail omniselector and acetabular bone sets nail device |
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|---|---|
| CN107088089A (en) | 2017-08-25 |
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