CN117137600B - Bone handling device based on cable - Google Patents
Bone handling device based on cableInfo
- Publication number
- CN117137600B CN117137600B CN202311166708.XA CN202311166708A CN117137600B CN 117137600 B CN117137600 B CN 117137600B CN 202311166708 A CN202311166708 A CN 202311166708A CN 117137600 B CN117137600 B CN 117137600B
- Authority
- CN
- China
- Prior art keywords
- nut
- bone
- hole
- cable
- cross arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary devices, e.g. pins or nails
- A61B17/7208—Flexible pins, e.g. ENDER pins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary devices, e.g. pins or nails
- A61B17/7216—Intramedullary devices, e.g. pins or nails for bone lengthening or compression
- A61B17/7225—Intramedullary devices, e.g. pins or nails for bone lengthening or compression for bone compression
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B2017/681—Alignment, compression, or distraction mechanisms
Landscapes
- 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
本发明公开了一种基于线缆的骨搬运装置，通过髓内钉将第一骨和第二骨进行连接；固定组件固定于第一骨和第二骨上，中间通过搬运组件连接；然后将线缆经皮肤通过第二骨远端内(外)侧进入第二骨髓腔内，再进入第一骨髓腔内后固定于其远端骨皮质外，线缆皮外部分连接于搬运组件；将第一骨截断为固定组件固定的第一骨和线缆拖拽的搬运骨段。定期驱动搬运组件上的移动部件，以带动线缆，从而带动搬运骨段向靠近第二骨逐渐移动，使搬运骨段最终接触第二骨，完成骨搬运。通过拖拽线缆来拉动搬运骨段顺髓内钉向第二骨靠近，能维持良好力线，避免畸形发生；不破坏搬运骨段的皮肤软组织结构；拖拽搬运方式较传统方式更简单。
The present invention discloses a cable-based bone transport device, which connects a first bone and a second bone through an intramedullary nail; a fixing assembly is fixed to the first bone and the second bone, and the middle is connected by a transport assembly; then the cable is passed through the skin through the inner (outer) side of the distal end of the second bone into the second medullary cavity, and then fixed to the outside of the distal bone cortex after entering the first medullary cavity, and the outer part of the cable is connected to the transport assembly; the first bone is cut into the first bone fixed by the fixing assembly and the transport bone segment dragged by the cable. The moving parts on the transport assembly are driven regularly to drive the cable, thereby driving the transport bone segment to gradually move closer to the second bone, so that the transport bone segment finally contacts the second bone, completing the bone transport. By dragging the cable to pull the transport bone segment closer to the second bone along the intramedullary nail, a good force line can be maintained to avoid deformity; the skin and soft tissue structure of the transport bone segment is not damaged; and the dragging transport method is simpler than the traditional method.
Description
Technical Field
The invention relates to the technical field of orthopedic medical instruments, in particular to a cable-based bone handling device.
Background
The bone conveying device is specially used for realizing bone extension (and/or bone conveying), and has the working principle that the proximal end or the distal end of a bone defect is cut for the position of the bone defect, the periosteum integrity, soft tissues and blood supply are reserved, then the bone conveying device is fixed at two ends of the bone, and the cut-off conveyed bone segments are pulled to enable the conveyed bone segments to slowly move towards the defect, in the process, the regeneration potential of human body tissues is activated, new bones are grown in a bone cutting gap, and finally the purposes of repairing the bone defect and shortening the lengthened bones are achieved.
The existing bone handling device adopts a ring-type external fixing support or a unilateral external fixing support and pulls free bones through external fixing nails or Kirschner wires, the scheme is time-consuming and labor-consuming to assemble, complex in operation, easy to cause position deviation of the handling bone segments in the pulling process, and the new bones which finally combine and grow are bent or offset, and the external fixing nails or the Kirschner wires are directly fixed on the handling bone segments through the skin, so that the integrity of skin soft tissues can be damaged in the pulling process, even blood vessels and nerve tissues can be damaged, and the infection risk is increased while pain is caused to patients.
Disclosure of Invention
The invention aims to provide a cable-based bone handling device, which aims to solve the problems that the existing bone handling device is time-consuming and labor-consuming to assemble, is complex in operation, is easy to cause position deviation of a handling bone segment in the pulling process, and an external fixing nail or a Kirschner wire can damage the integrity of skin soft tissues in the pulling process, even possibly damage blood vessels and nerve tissues, causes pain to patients and increases infection risk.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
The bone conveying device based on the cables comprises a fixing assembly, a conveying assembly, a moving part, an intramedullary nail and cables, wherein the conveying assembly comprises a first screw rod and a second screw rod which are parallel to each other, the number of the fixing assemblies is at least 2, the fixing assemblies are arranged on the conveying assembly, the fixing assemblies are used for fixing the conveying assembly to a first bone and a second bone which are respectively positioned at two ends of a conveying bone segment, the intramedullary nail sequentially penetrates through an intramedullary cavity of the first bone, an intramedullary cavity of the conveying bone segment and an intramedullary cavity of the second bone, the moving part is movably connected with the conveying assembly, one end of each cable is used for connecting the conveying bone segment, the other end of each cable is used for penetrating through the intramedullary cavity of the conveying bone segment, then penetrates through a limb after penetrating through the intramedullary cavity of the second bone and is connected with the moving part, and the moving part can move along the longitudinal axis of the first screw rod towards the direction close to the first bone so as to drive the cables and further drive the conveying bone segment to move along the axial direction of the intramedullary nail towards the second bone.
Preferably, the carrying assembly further comprises a first connecting rod, two ends of the first connecting rod are respectively connected with the first screw rod and the second screw rod, the first connecting rod is close to an extending point of the cable from a limb, and the other end of the cable extends from the limb, bypasses the first connecting rod and is connected with the moving part.
The carrying assembly further comprises an L-shaped connecting sleeve and a second connecting rod, wherein a first threaded hole and a second threaded hole are formed in the L-shaped connecting sleeve, the central axis of the first threaded hole and the central axis of the second threaded hole form a preset angle, the number of the L-shaped connecting sleeves is 2, one end of the first screw rod is matched with and penetrates through the first threaded hole of 1L-shaped connecting sleeve, one end of the second screw rod is matched with and penetrates through the first threaded hole of the other 1L-shaped connecting sleeve, two ends of the second connecting rod are respectively embedded into the second threaded hole of 1L-shaped connecting sleeve, the second connecting rod can rotate, one end, far away from the second connecting rod, of the second threaded hole is screwed with a first screw, the second connecting rod is close to an extending point of a cable from a limb, the other end of the cable extends from the limb, and then bypasses the second connecting rod and is connected to the moving part.
The movable component comprises a first nut, a second nut and a first connecting cross arm, wherein the first nut is matched and screwed on the first screw rod, the second nut is matched and screwed on the second screw rod, a first through hole and a second through hole are respectively formed in two ends of the first connecting cross arm, the first screw rod movably penetrates through the first through hole, the second screw rod movably penetrates through the second through hole, the other end of the cable is connected to the first connecting cross arm, and the first nut and the second nut are both used for abutting against one side, close to the first connecting rod, of the first connecting cross arm.
Preferably, the moving part further comprises a third nut and a fourth nut, the third nut is screwed on the first screw rod in a matched mode, the first nut and the third nut are respectively located at two sides of the first connecting cross arm, the fourth nut is screwed on the second screw rod in a matched mode, the second nut and the fourth nut are respectively located at two sides of the first connecting cross arm, and the third nut and the fourth nut are both used for abutting against one side, away from the first connecting cross arm, of the first connecting cross arm.
The first nut and the second nut are both outer hexagon nuts, 6 outer side walls are formed on the first nut, different numerical identifiers are respectively arranged on the 6 outer side walls of the first nut, 6 outer side walls are formed on the second nut, and different numerical identifiers are respectively arranged on the 6 outer side walls of the second nut.
The fixing assembly comprises a fixing plate, a buckling plate, a first fixing rod and a second screw, wherein the fixing plate is provided with a plurality of third threaded holes, the buckling plate is provided with a plurality of fourth threaded holes, the third threaded holes and the fourth threaded holes are in one-to-one correspondence, the buckling plate is provided with a first arc-shaped groove and a second arc-shaped groove, and the extending direction of the first arc-shaped groove is parallel to the extending direction of the second arc-shaped groove;
The buckling plate is buckled with the fixed plate in a matched mode, the third threaded hole is opposite to the fourth threaded hole, the first screw rod penetrates through the first arc-shaped groove, and the second screw rod penetrates through the second arc-shaped groove; the second screw is sequentially screwed in the third threaded hole and the fourth threaded hole, so that the buckling plate is fixedly connected with the fixed plate, and the first screw rod and the second screw rod are clamped and fixed by the buckling plate and the fixed plate;
The fixing plate is provided with a plurality of fifth threaded holes, one end of the first fixing rod is provided with second external threads, the first fixing rod is screwed into the fifth threaded holes through the second external threads, the other end of the fixing rod is used for being embedded into first bones or second bones, at least 1 first fixing rod of the fixing assembly is used for being embedded into first bones, and at least 1 first fixing rod of the fixing assembly is used for being embedded into second bones.
The cable is used for penetrating through a cable hole formed in the bone wall of the carried bone segment, extending into the intramedullary cavity of the carried bone segment, extending out of one end, close to the first connecting rod, of the carried bone segment, then entering the intramedullary cavity of the second bone, extending out of the limb and connecting with the moving part after penetrating through an outlet formed in the bone wall of the second bone, and the first clamping piece is used for abutting against the bone outer wall of the carried bone segment.
Preferably, an eleventh through hole and a twelfth through hole are respectively formed at two ends of the intramedullary nail, and the eleventh through hole and the twelfth through hole are used for penetrating the fixing nail.
Preferably, the handling assembly further comprises a second connecting cross arm, a fifth nut, a sixth nut, a seventh nut and an eighth nut; the cable is movably arranged in the seventh through hole in a penetrating mode, the fifth nut and the sixth nut are respectively arranged on two sides of the second connecting cross arm in a screwed mode, the seventh nut and the eighth nut are respectively arranged on the second screw rod in a screwed mode, the seventh nut and the eighth nut are respectively arranged on two sides of the second connecting cross arm in a screwed mode, the fifth nut and the seventh nut are respectively used for being abutted to one side, close to the first connecting cross arm, of the second connecting cross arm, and the sixth nut and the eighth nut are respectively used for being abutted to one side, far away from the first connecting cross arm, of the second connecting cross arm.
Compared with the prior art, the invention has at least the following beneficial effects:
1. The cable-based bone carrying device comprises a first bone, a second bone and a carrying assembly, wherein the first bone, the second bone and the carrying assembly are fixed through the fixing assembly, so that the relative positions of the first bone and the second bone are kept, one end of a cable is connected with the carrying bone segment, the other end of the cable penetrates through a marrow cavity of the carrying bone segment, penetrates through a marrow cavity of the second bone and penetrates through a bone wall of the second bone, then stretches out of a limb and is connected with a moving part, the cable is driven to drive the moving part periodically when in use, so that the carrying bone segment is driven to move in a direction approaching to the second bone, the carrying bone segment is enabled to gradually approach to the second bone, so that the regeneration potential of human body tissues is activated, new bones are enabled to grow between the first bone and the second bone in the process, finally, the carrying bone segment and the second bone are combined and grow together, the carrying bone segment is pulled to approach the second bone through the cable in the whole use process, the carrying bone segment is prevented from being pulled to approach the second bone through the cable, the carrying bone segment is prevented from being damaged in the pulling process, and the soft tissue of a patient is prevented from being damaged in the pulling process, and the soft tissue of the patient is prevented from being damaged in the pulling process.
2. The bone carrying device based on the cable is simple and convenient to assemble, reliable in fixation and relatively simple in operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a cable-based bone handling apparatus according to the present invention;
FIG. 2 is a schematic diagram of a front view of a cable-based bone handling apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic front view of another embodiment of a cable-based bone handling apparatus according to the present invention;
Fig. 4 is a schematic structural view of an L-shaped connecting sleeve and related components of another embodiment of the cable-based bone handling apparatus according to the present invention;
FIG. 5 is a schematic view of a fixing assembly of another embodiment of a cable-based bone handling apparatus according to the present invention;
FIG. 6 is an enlarged schematic view of a detail A in FIG. 2;
FIG. 7 is a schematic perspective view of a fixing assembly of an embodiment of a cable-based bone handling apparatus according to the present invention;
fig. 8 is a schematic structural view of a moving component and related components of another embodiment of a cable-based bone handling apparatus according to the present invention.
Reference numerals illustrate:
110. A first bone; 120, carrying the bone segments; 130, carrying a intramedullary canal of the bone fragment; 140, second bone, 150, intramedullary cavity of second bone, 160, cable, 170, cable hole, 180, first clamping piece, 190, outlet hole, 210, second fixing rod, 220, first lead screw, 230, second lead screw, 240, first connecting rod, 250, first connecting sleeve, 260, second connecting sleeve, 270, first connecting cross arm, 280, first nut, 290, second nut, 310, third nut, 320, fourth nut, 330, third through hole, 340, second clamping piece, 350, second connecting cross arm, 360, fifth nut, 370, sixth nut, 380, seventh nut, 390, eighth nut, 410, seventh through hole, 420, first connecting seat, 430, second connecting seat, 440, first press block, 450, second press block, 460, first through hole, 470, second threaded rod, 480, threaded rod, sixth threaded rod, 490, seventh threaded hole, 510, first outer corner nut, 520, second outer corner nut, 530, first clearance, 540, second clearance, 560, second through hole, 380, seventh through hole, 390, eighth nut, 410, seventh through hole, 420, first clearance, 720, second through hole, 720, second clearance, 720, second through hole, 720, and third through hole.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all 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 all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present invention) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "fixed" may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The invention provides a cable-based bone handling device.
Referring to fig. 1-8, in one embodiment of a cable-based bone handling apparatus according to the present invention, the cable-based bone handling apparatus includes a fixed assembly, a handling assembly, a moving member, an intramedullary nail 820, and a cable 160; the handling assembly comprises a first screw rod 220 and a second screw rod 230 which are parallel to each other, the number of the fixing assemblies is at least 2, the fixing assemblies are arranged on the handling assembly, the fixing assemblies are used for fixing the handling assembly to a first bone 110 and a second bone 140 which are respectively positioned at two ends of a handling bone segment 120, an intramedullary nail 820 sequentially penetrates through an intramedullary cavity of the first bone 110, the intramedullary cavity 130 of the handling bone segment and the intramedullary cavity 150 of the second bone (specifically, a transverse fixing rod (not shown) penetrates between the intramedullary nail 820 and the first bone 110 so that one end of the intramedullary nail 820 is fixed to the first bone 110, a transverse fixing rod (not shown) penetrates between the intramedullary nail 820 and the second bone 140 so that the other end of the intramedullary nail 820 is fixed to the second bone 140), one end of a cable 160 is used for connecting the handling bone segment 120, the other end of the cable 160 penetrates through the intramedullary cavity 130 of the handling bone segment and then penetrates through the bone wall of the second bone 140 so that one end of the intramedullary nail 820 extends out of the second bone 140 and is connected to the moving part, and the other end of the intramedullary nail 820 can move towards the first bone segment 140 along the longitudinal axis of the first bone 140, and the moving part 160 can move towards the first bone segment 140 along the axial direction of the first screw rod, and the moving part 160 moves towards the first bone segment and the second bone segment in the direction.
The cable-based bone conveying device provided by the invention firstly fixes the first bone 110, the second bone 140 and the conveying component through the fixing component, so that the relative positions of the first bone 110 and the second bone 140 are maintained; then, one end of the cable 160 is connected to the handling bone segment 120, the other end of the cable 160 penetrates through the intramedullary cavity 130 of the handling bone segment, penetrates through the intramedullary cavity 150 of the second bone, penetrates through the bone wall of the second bone 140, and then extends out of the limb and is connected to the moving component, when in use, the moving component is driven periodically to drive the cable 160 (in the implementation of fig. 1, the moving component moves at a speed of 1mm upwards per day), thereby driving the handling bone segment 120 to move towards the direction close to the second bone 140 (in the implementation of fig. 1, driving the handling bone segment 120 to move downwards), thereby enabling the handling bone segment 120 to gradually approach the second bone 140, so as to activate the regeneration potential of human body tissues, enabling the new bone to grow between the first bone 110 and the second bone 140 in the process, finally enabling the handling bone segment 120 to contact the second bone 140, enabling the handling bone segment 120 to grow together in a combined manner with the second bone 140, and in the whole use process, the handling bone segment 120 is pulled to approach the second bone 140 along the intramedullary nail 820 radially, thereby enabling the handling bone segment 120 to be prevented from being pulled towards the second bone 140 along the intramedullary nail, and the risk of damaging the soft bone segment 160 in the process is greatly reduced, and the risk of skin injury of a patient is avoided in the process of pulling the soft bone segment 160.
In addition, as shown in fig. 1-2, the handling assembly further includes a first connecting rod 240, two ends of the first connecting rod 240 are respectively connected to the first screw rod 220 and the second screw rod 230, the first connecting rod 240 is close to an extending point of the cable 160 from the limb (i.e., close to the second bone 140, so that the cable 160 is more conveniently wound around the first connecting rod 240 after passing out of the limb), the other end of the cable 160 extends from the limb, bypasses the first connecting rod 240 and is connected to the moving part, specifically, one end of the first screw rod 220 is connected to a first connecting sleeve 250, one end of the second screw rod 230 is connected to a second connecting sleeve 260, and two ends of the first connecting rod 240 are respectively hinged to the first connecting sleeve 250 and the second connecting sleeve 260. This improves the structure of the handling assembly, keeps the first and second screws 220, 230 relatively fixed, and the cable 160 bypasses the first connection rod 240, thereby facilitating the moving part to pull the cable 160.
Meanwhile, as shown in fig. 3-4, in another embodiment, the handling assembly further includes an L-shaped connecting sleeve 550 and a second connecting rod 560, the L-shaped connecting sleeve 550 is provided with a first threaded hole 570 and a second threaded hole 580, a central axis of the first threaded hole 570 forms a preset angle (for example, 90 °) with a central axis of the second threaded hole 580, the number of the L-shaped connecting sleeves 550 is 2, one end of the first screw rod 220 is matched with and penetrates through the first threaded hole 570 of one L-shaped connecting sleeve 550, one end of the second screw rod 230 is matched with and penetrates through the first threaded hole 570 of the other 1L-shaped connecting sleeve 550, two ends of the second connecting rod 560 are respectively embedded into the second threaded holes 580 of the other 1L-shaped connecting sleeve 550, the second connecting rod 560 can rotate, and one end, far away from the second connecting rod 560, of the second threaded hole 580 is screwed with a first screw 830 to prevent the second connecting rod 560 from falling out of the second threaded hole 580.
The second link 560 is adjacent to the point where the cable 160 extends from the limb, and the other end of the cable 160 extends from the limb, bypassing the second link 560 and being connected to the moving member.
The arrangement can more conveniently screw the first screw rod 220 or the second screw rod 230 into the L-shaped connecting sleeve 550, then screw the two ends of the second connecting rod 560 into the second threaded holes 580 of the 2L-shaped connecting sleeves 550 respectively, and the L-shaped connecting sleeves 550 arranged in a modularized manner are more practical.
In addition, as shown in fig. 1-2, the moving component includes a first nut 280, a second nut 290 and a first connecting cross arm 270, where the first nut 280 is screwed on the first screw rod 220 in a matching manner, the second nut 290 is screwed on the second screw rod 230 in a matching manner, two ends of the first connecting cross arm 270 are respectively provided with a first through hole (not shown) and a second through hole (not shown), the first screw rod 220 is movably inserted into the first through hole, the second screw rod 230 is movably inserted into the second through hole, the other end of the cable 160 is connected to the first connecting cross arm 270, and the first nut 280 and the second nut 290 are both used for abutting against one side of the first connecting cross arm 270 close to the first connecting rod 240. In use, only the first nut 280 and the second nut 290 need be screwed respectively to drive the first connecting arm 270 to move away from the first connecting rod 240, thereby pulling the cable 160.
Specifically, the moving part further includes a second clamping member 340 (e.g. a U-shaped pin), a third through hole 330 is formed in the middle of the first connecting cross arm 270, the other end of the cable 160 passes through the third through hole 330 and is connected to the second clamping member 340, and the second clamping member 340 abuts against one side of the first connecting cross arm 270, which is away from the first connecting rod 240. This completes the specific structure of the cable 160 connected to the moving part.
Meanwhile, the moving part further comprises a third nut 310 and a fourth nut 320, the third nut 310 is matched and screwed on the first screw rod 220, the first nut 280 and the third nut 310 are respectively positioned on two sides of the first connecting cross arm 270, the fourth nut 320 is matched and screwed on the second screw rod 230, the second nut 290 and the fourth nut 320 are respectively positioned on two sides of the first connecting cross arm 270, and the third nut 310 and the fourth nut 320 are respectively used for abutting against one side, away from the first connecting cross arm 270, of the first connecting cross arm 240.
By providing the third nut 310 and the fourth nut 320, the first connecting cross arm 270 can be abutted against the first connecting cross arm 270, so that the first connecting cross arm 270 is prevented from shaking, and when the first connecting cross arm 270 needs to be moved, the third nut 310 and the fourth nut 320 need to be unscrewed first.
Specifically, the first nut 280 and the second nut 290 are both outer hexagonal nuts, 6 outer side walls are formed on the first nut 280, different numerical identifiers (for example, 1-6) are respectively provided on the 6 outer side walls of the first nut 280, 6 outer side walls are formed on the second nut 290, and different numerical identifiers (for example, 1-6) are respectively provided on the 6 outer side walls of the second nut 290. This arrangement is more convenient for the operator to know the rotation angle of the first nut 280 and the second nut 290, and further control the moving distance of the first connecting cross arm 270 each time.
In addition, as shown in fig. 3 and 5, the fixing assembly includes a fixing plate 590, a fastening plate 610, a first fixing bar 690 and a second screw 660, the fixing plate 590 is provided with a plurality of third screw holes 640, the fastening plate 610 is provided with a plurality of fourth screw holes 650, the third screw holes 640 and the fourth screw holes 650 are in one-to-one correspondence, the fastening plate 610 is provided with a first arc-shaped groove 620 and a second arc-shaped groove 630, and an extending direction of the first arc-shaped groove 620 is parallel to an extending direction of the second arc-shaped groove 630.
The buckling plate 610 is buckled with the fixed plate 590 in a matched manner, the third threaded hole 640 is opposite to the corresponding fourth threaded hole 650, the first screw rod 220 penetrates through the first arc-shaped groove 620, the second screw rod 230 penetrates through the second arc-shaped groove 630, the second screw 660 is sequentially screwed on the third threaded hole 640 and the fourth threaded hole 650, so that the buckling plate 610 is fixedly connected with the fixed plate 590, and the buckling plate 610 and the fixed plate 590 clamp and fix the first screw rod 220 and the second screw rod 230.
The fixing plate 590 is provided with a plurality of fifth screw holes 670, one end of the first fixing rod 690 is provided with second external screw threads, the first fixing rod 690 is screwed into the fifth screw holes 670 through the second external screw threads, and the other end of the fixing rod is used for being embedded into the first bone 110 or the second bone 140.
The buckling plate 610 is provided with a fourth through hole 680 between the first arc-shaped groove 620 and the second arc-shaped groove 630, wherein 1 fifth threaded hole 670 is opposite to the fourth through hole 680, the inner diameter of the fourth through hole 680 is larger than that of the fifth threaded hole 670, at least 1 first fixing rod 690 of the fixing assembly is used for being embedded into the first bone 110, and at least 1 first fixing rod 690 of the fixing assembly is used for being embedded into the second bone 140. In this embodiment, the number of the first fixing bars 690 of the same fixing assembly is plural, thereby improving the fixing ability.
In use, the second screw 660 is screwed into the third screw hole 640 and the fourth screw hole 650 in sequence, so that the fastening plate 610 is fixedly connected with the fixing plate 590, the fastening plate 610 and the fixing plate 590 clamp and fix the first screw rod 220 and the second screw rod 230, then one end of the first fixing rod 690 is screwed into the fifth screw hole 670, and the other end of the first fixing rod 690 is embedded into the first bone 110 or the second bone 140, so that the first screw rod 220 and the second screw rod 230 are respectively fixed on the first bone 110 and the second bone 140.
In particular, the fixing plate can take different shapes according to practical situations, such as a rectangle or other shapes corresponding to bones.
In another embodiment of the cable-based bone handling apparatus according to the present invention, as shown in fig. 1, 2, 6 and 7, the fixing assembly includes a first connection seat 420, a second connection seat 430, a first pressing block 440, a second pressing block 450, a first threaded rod 460, a second threaded rod 470 and a second fixing rod 210, the first connection seat 420 is rotatably connected with the second connection seat 430, the first connection seat 420 is provided with a sixth threaded hole 480, the first threaded rod 460 is movably inserted through the first connection seat 420 and screwed into the sixth threaded hole 480, a first gap 530 is formed between the first pressing block 440 and the first connection seat 420, the first fixing rod 210 is inserted through the first gap 530, a first outer quadrangular nut 510 is formed at an end of the first threaded rod 460 away from the first connection block, the first outer quadrangular nut 510 is used for abutting against a side of the first pressing block 440 away from the first connection block so as to clamp the first pressing block 440 and the first connection seat 420 to fix the second fixing rod 210, and the second fixing rod 210 is used for embedding the first bone 110 or the second bone 140.
The second connecting seat 430 is provided with a seventh threaded hole 490, the second threaded rod 470 is movably arranged on the second connecting seat 430 in a penetrating way and screwed into the seventh threaded hole 490, a second gap 540 is formed between the second pressing block 450 and the second connecting seat 430, the second gap 540 is used for penetrating the first screw rod 220 or the second screw rod 230, one end, far away from the second connecting block, of the second threaded rod 470 is provided with a second outer quadrangle screw cap 520, the second outer quadrangle screw cap 520 is used for abutting against one side, far away from the second connecting block, of the second pressing block 450, so that the second pressing block 450 and the second connecting seat 430 clamp and fix the first screw rod 220 or the second screw rod 230, and the first threaded rod 460 and the second threaded rod 470 share a central axis.
Through the above technical scheme, another embodiment of the fixing assembly is provided, when in use, the first screw rod 220 or the second screw rod 230 is clamped in the second gap 540, then the second outer four-corner nut 520 is screwed down to fix the first screw rod 220 or the second screw rod 230, then the second fixing rod 210 is embedded in the first gap 530, the first outer four-corner nut 510 is screwed down to fix one end of the second fixing rod 210, and the other end of the second fixing rod 210 is embedded in the first bone 110 or the second bone 140 to fix the first screw rod 220, the second screw rod 230, the first bone 110 and the second bone 140.
In addition, as shown in fig. 1, the cable-based bone conveying device further comprises a first clamping member 180 (such as a U-shaped pin), wherein one end of the cable 160 is connected to the first clamping member 180, the cable 160 is used for penetrating through a cable hole 170 formed in a bone wall of the conveying bone segment 120 and extending into a intramedullary cavity 130 of the conveying bone segment, then extends out of one end of the conveying bone segment 120, which is close to the first connecting rod 240, then enters into a intramedullary cavity 150 of the second bone, then extends out of a limb and is connected to a moving part after penetrating through an outlet hole 190 formed in a bone wall of the second bone 140, the first clamping member 180 is used for abutting against a bone outer wall of the conveying bone segment 120, wherein the cable hole 170 is positioned at one end, which is far away from the second bone 140, of the conveying bone segment 120, and the second clamping member 340 is larger than the inner diameter of the cable hole 170. This can promote the connection stability of the cable 160 with the handling bone segment 120.
Further, an eleventh through hole (not shown) and a twelfth through hole (not shown) for penetrating the fixing pin (not shown) are respectively opened at both ends of the intramedullary nail 820. By providing the intramedullary nail 820, the coaxiality among the handling bone segment 120, the first bone 110 and the second bone 140 can be maintained, and deviation of the handling bone segment 120 in the moving process can be avoided.
Specifically, as shown in fig. 1-2, the handling assembly further includes a second connecting cross arm 350, a fifth nut 360, a sixth nut 370, a seventh nut 380 and an eighth nut 390, wherein a fifth through hole and a sixth through hole are respectively formed at two ends of the second connecting cross arm 350, the first screw rod 220 is movably inserted into the fifth through hole, the second screw rod 230 is movably inserted into the sixth through hole, a seventh through hole 410 is formed in the middle of the second connecting cross arm 350, the cable 160 is movably inserted into the seventh through hole 410, the fifth nut 360 and the sixth nut 370 are both screwed onto the first screw rod 220, the fifth nut 360 and the sixth nut 370 are respectively located at two sides of the second connecting cross arm 350, the seventh nut 380 and the eighth nut 390 are both screwed onto the second screw rod 230, the seventh nut 380 and the eighth nut 390 are respectively located at two sides of the second connecting cross arm 350, the fifth nut 360 and the seventh nut 380 are both used for abutting against one side of the second connecting cross arm 350 near the first connecting rod 240, and the sixth nut 370 and the eighth nut 390 are both used for abutting against one side of the second connecting cross arm 350 facing away from the first connecting rod 240. By providing the second connecting cross arm 350, the structural stability between the first screw 220 and the second screw 230 can be further improved.
In addition, as shown in fig. 8, in another embodiment of the cable-based bone handling apparatus according to the present invention, the moving parts further include a third connecting cross arm 740, a ninth nut 770, a tenth nut 780, an eleventh nut 790, a twelfth nut 810, a first external gear ring 710, a second external gear ring 720, a driving gear 730, and a rotating handle 760, wherein an eighth through hole and a ninth through hole are respectively formed at two ends of the third connecting cross arm 740, the first screw 220 is movably inserted into the eighth through hole, the second screw 230 is movably inserted into the ninth through hole, the ninth nut 770 and the tenth nut 780 are both screwed into the first screw 220, the ninth nut 770 and the tenth nut 780 are both screwed into the second screw 230, the eleventh nut 790 and the twelfth nut 810 are both screwed into the second screw 230, and the eleventh nut 790 and the twelfth nut 810 are both positioned on two sides of the third connecting cross arm 740, the ninth nut 770 and the eleventh nut 790 are both used for abutting against one side of the third connecting cross arm 740 near the first connecting rod 240, and the tenth nut 780 and the twelfth nut 780 are both used for abutting against one side of the third connecting cross arm 240.
The first outer gear ring 710 is coaxially sleeved on the first nut 280, the second outer gear ring 720 is coaxially sleeved on the second nut 290, the driving gear 730 is rotatably arranged on the third connecting cross arm 740, the driving gear 730 is simultaneously meshed with the first outer gear ring 710 and the second outer gear ring 720, the rotating handle 760 is coaxially connected with the driving gear 730, the third connecting cross arm 740 is positioned on one side, close to the first connecting rod 240, of the first connecting cross arm 270, a tenth through hole 750 is formed in the middle of the third connecting cross arm 740, and the cable 160 movably penetrates through the tenth through hole 750.
Through the above technical scheme, the first connecting cross arm 270 can be driven to move more conveniently, and when the portable bone fracture device is used, the rotating handle 760 is only required to be manually screwed to drive the driving gear 730 to rotate, so that the first outer gear ring 710 and the second outer gear ring 720 are driven to synchronously rotate in the same direction, the first nut 280 and the second nut 290 are driven to synchronously rotate and move, the first connecting cross arm 270 is driven to move in the direction deviating from the first connecting rod 240, and the cable 160 is pulled to drive the carrying bone fracture device 120.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311166708.XA CN117137600B (en) | 2023-09-11 | 2023-09-11 | Bone handling device based on cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311166708.XA CN117137600B (en) | 2023-09-11 | 2023-09-11 | Bone handling device based on cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117137600A CN117137600A (en) | 2023-12-01 |
| CN117137600B true CN117137600B (en) | 2025-09-09 |
Family
ID=88911788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311166708.XA Active CN117137600B (en) | 2023-09-11 | 2023-09-11 | Bone handling device based on cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117137600B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12471957B2 (en) * | 2024-01-03 | 2025-11-18 | DePuy Synthes Products, Inc. | Cable bone transport device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5626579A (en) * | 1993-02-12 | 1997-05-06 | The Cleveland Clinic Foundation | Bone transport and lengthening system |
| CN108498149A (en) * | 2018-07-13 | 2018-09-07 | 任广凯 | A kind of titanium cable drawing bone Filtting device and its application method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5429638A (en) * | 1993-02-12 | 1995-07-04 | The Cleveland Clinic Foundation | Bone transport and lengthening system |
| CN110537964B (en) * | 2019-09-04 | 2024-05-14 | 河北医科大学第三医院 | Lower limb traction device for intramedullary nail operation |
| CN211325484U (en) * | 2019-10-21 | 2020-08-25 | 天津市威曼生物材料有限公司 | Bone moving device |
| CN211610018U (en) * | 2020-02-25 | 2020-10-02 | 吴丹凯 | A Bone Transfer Device Based on Intramedullary Nail System |
-
2023
- 2023-09-11 CN CN202311166708.XA patent/CN117137600B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5626579A (en) * | 1993-02-12 | 1997-05-06 | The Cleveland Clinic Foundation | Bone transport and lengthening system |
| CN108498149A (en) * | 2018-07-13 | 2018-09-07 | 任广凯 | A kind of titanium cable drawing bone Filtting device and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117137600A (en) | 2023-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8142432B2 (en) | Apparatus for repositioning portions of fractured bone and method of using same | |
| US7169149B1 (en) | Device for external fixation of a proximal fracture of the ulna with a clamped medullar pin and multiple clamped pins holding bone fragments | |
| US20120123428A1 (en) | Repositioning Forceps With A Drilling Aid | |
| US11020159B2 (en) | Differential compression bone screw | |
| US5439465A (en) | Bone compression and distraction surgical tool | |
| CN104814779B (en) | External fixation device needle threading fixture capable of being adjusted in multiple directions and at multiple angles | |
| WO1997007732A1 (en) | Supporting endoscope especially for examinations of regions of epipharynx, oropharynx and/or hypopharynx and/or larynx | |
| US6086596A (en) | Magnetically assisted surgical wiring and cabling passer devices | |
| MX2015001048A (en) | Elongated pin for an external modular fixation system for temporary and/or permanent fixation applications and external modular fixation system. | |
| US4823781A (en) | Method and apparatus for percutaneous fracture reduction and fixation | |
| CN117137600B (en) | Bone handling device based on cable | |
| CN107920845B (en) | Pelvic internal fixator | |
| BR102014025022B1 (en) | REDUCTION FORCEPS | |
| WO2024199090A1 (en) | Intramedullary guide device | |
| EP1919381B1 (en) | Apparatus for external fixation of the pelvic ring | |
| CN204072305U (en) | A kind of fracture of medial malleolus replacement and fixation guider | |
| CN108498149A (en) | A kind of titanium cable drawing bone Filtting device and its application method | |
| ES3007683T3 (en) | Differential compression bone screw | |
| WO2009000854A1 (en) | Surgical instrument | |
| CN204092167U (en) | A kind of be applicable to comminuted fracture tie up guiding device | |
| US9320542B2 (en) | Device for treating flail chest | |
| RU2183435C2 (en) | Device for making reposition and osteosynthesis of forearm bones | |
| CN215079482U (en) | A C-type guide for orthopedic surgery | |
| CN209864019U (en) | Percutaneous minimally invasive fracture repositor | |
| RU114601U1 (en) | DEVICE FOR REPOSITION OF FRAGMENTS OF LONG TUBULAR BONES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20250621 Address after: 410000 Yuelu District, Hunan, Tongzi slope road, Changsha Applicant after: THE THIRD XIANGYA HOSPITAL OF CENTRAL SOUTH University Country or region after: China Address before: 410021 Hunan Province, Changsha City, Yuhua District, Shao Shan Middle Road No. 119, Building 4, Room 212 Applicant before: Luo Ling Country or region before: China |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |