CN109966106B - Auxiliary reduction mechanism for fracture - Google Patents
Auxiliary reduction mechanism for fracture Download PDFInfo
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- CN109966106B CN109966106B CN201910290814.6A CN201910290814A CN109966106B CN 109966106 B CN109966106 B CN 109966106B CN 201910290814 A CN201910290814 A CN 201910290814A CN 109966106 B CN109966106 B CN 109966106B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 230000009467 reduction Effects 0.000 title claims description 16
- 210000000689 upper leg Anatomy 0.000 claims abstract description 9
- 230000000750 progressive effect Effects 0.000 claims description 7
- 206010017076 Fracture Diseases 0.000 description 43
- 208000010392 Bone Fractures Diseases 0.000 description 42
- 230000006378 damage Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000008924 Femoral Fractures Diseases 0.000 description 1
- 208000026137 Soft tissue injury Diseases 0.000 description 1
- 206010048873 Traumatic arthritis Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
- A61G13/1245—Knees, upper or lower legs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2210/00—Devices for specific treatment or diagnosis
- A61G2210/10—Devices for specific treatment or diagnosis for orthopedics
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses an auxiliary fracture resetting mechanism which comprises a proximal fixed support, a proximal adjusting fixed ring, an adjusting rod and a proximal adjusting movable ring, wherein one end of the proximal fixed support is fixed on two sides of an operating table, adjusting arms extending outwards are arranged on two sides of the proximal adjusting fixed ring, the other end of the proximal fixed support is clamped on the adjusting arms and is movably connected with the adjusting arms, a plurality of adjusting rods are arranged, one end of each adjusting rod is connected with a first universal shaft, the other end of each adjusting rod is connected with a second universal shaft, the fixed end of each first universal shaft is fixedly connected with the corresponding proximal adjusting fixed ring, and the second universal shafts are detachably connected with the corresponding proximal adjusting movable ring; the invention can realize six-axis multi-angle adjustment of the position of the near-end adjusting moving ring, can adjust and fix each position of the femur, and has the advantages of high efficiency, flexible adjustment, convenience and accuracy; the near-end adjusting moving ring has various diameters, is suitable for fixing the position of various conditions, and has strong universality.
Description
Technical Field
The invention relates to the technical design field of medical machinery manufacturing, in particular to an auxiliary fracture reduction mechanism.
Background
Fractures always exist in all corners of life, and in the injury of long bones of limbs, after fracture, patients often have states of shortening deformity and the like due to muscle traction, and the patients are difficult to reset and effectively maintain during fixation. If the reduction cannot be performed in the operation, complications such as malformation healing and bad lower limb force lines can occur after the operation. Complications such as poor lower limb force lines and malunion after femoral fracture operation can cause traumatic arthritis or osteoarthritis, and seriously affect limb functions and life quality of patients.
In the prior art, the fracture fixation and reduction are generally divided into two types, one type is internal fixation, the other type is external fixation, a steel plate, an intramedullary needle and the like are fixed in the internal fixation of the steel plate, the damage to soft tissues is large, two operations are needed, the pain of a patient is large, the intramedullary needle is fixed to damage the blood circulation of the intramedullary canal, the anti-rotation and anti-bending forces are poor, the fracture reduction healing is not facilitated, the splint is fixed in the external fixation, the plaster is fixed in the external fixation, the splint is fixed in the external fixation, the binding is troublesome, the management is not easy, the blood circulation of the soft tissues is influenced, the complications caused are more, the plaster is fixed in the external fixation, and the movement of adjacent joints is influenced.
The patent number in the prior art is 87210403.6, and mainly comprises a needle holding adjusting frame, a needle seat, a needle clamp, an angle adjusting plate, an adjusting arm and the like, wherein the fixed restorer basically overcomes the defects of a single-arm fixed restorer and a ring-type fixed restorer, but still has the following problems of complex structure and high processing precision requirement, thus having high manufacturing cost; can only be used on long bones, can not be disassembled and assembled at will according to the illness state, and is limited to certain use in special parts; complicated operation, difficult control and professional training of doctors; the volume is large, and the rest of the patient is influenced due to the heavy weight. The external fixator and the existing fracture reduction structure have the following defects: firstly, the fixed position is inconvenient to adjust, the mechanism with different lengths and angles is required to be replaced to realize, and the problem of universality cannot be realized; and the distal joint cannot be supported after fixation, so that single action is difficult to maintain, the fracture part is maintained, and the action of a fracture patient is not facilitated.
Therefore, how to design a convenient-to-use reduction mechanism that can effectively assist fracture reduction and is beneficial to patient rehabilitation is a problem that needs to be innovated and solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a resetting mechanism which is convenient to use, can effectively assist fracture reduction and is beneficial to patient rehabilitation, and the resetting mechanism has the advantages of simple structure, convenient use, strong adjustable capability and higher practicability.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an auxiliary reduction gears of fracture, includes proximal end fixed bolster, and the proximal end adjusts solid fixed ring, adjusts the pole, and the proximal end is adjusted and is moved the ring, proximal end fixed bolster one end is fixed in the operating table both sides, proximal end is adjusted solid fixed ring both sides and is equipped with the outward regulation arm that extends, proximal end fixed bolster other end block inlay on the regulation arm and with regulation arm swing joint, adjust the pole and be a plurality of, the one end of adjusting the pole is connected with first universal shaft, and the other end is connected with the second universal shaft, the stiff end of first universal shaft with proximal end is adjusted solid fixed ring fixed connection, the second universal shaft with proximal end is adjusted and is moved the ring and can be dismantled and be connected.
The proximal end adjusting moving ring is connected with the plurality of adjusting rods through the first universal shaft, so that the position of the proximal end adjusting moving ring can be adjusted and fixed at six axes and multiple angles, and each position of the femur can be adjusted and fixed.
Further, the proximal adjustment fixing ring is any one of a circle, a square and a polygon, and the closed ring formed by the proximal adjustment fixing ring is enough to accommodate the root of the thigh of the adult.
Further, the adjusting rod is a progressive adjusting telescopic rod, the progressive adjusting telescopic rod comprises an outer pipe, one end of the outer pipe is of a tubular structure and is hinged with the first universal shaft, and the outer pipe is internally inserted with a plug-in connectorInner partA rod, saidInner partThe rod is of a rod-shaped structure, theInner partThe rod is parallel to the axial direction of the outer tube,inner partThe end part of the rod is provided with a mounting frame and is hinged with the second universal shaft,inner partThe outer surface cover of pole is equipped with the regulation pipe, and the surface of regulation pipe is equipped with the regulation section of thick bamboo, and the surface of regulation section of thick bamboo is equipped with the regulation thread groove, and the axial of outer tube is equipped with the spliced groove, and the regulation section of thick bamboo is installed in the spliced groove, and the internal surface of outer tube is equipped with the internal thread, adjusts the internal thread matching of thread groove and outer tube internal surface, and the axial of regulation pipe is equipped with the spliced eye, and the internal rod is pegged graft in spliced eye position, regulation pipe and regulation section of thick bamboo structure as an organic whole.
The invention adopts a plurality of adjusting rods to realize multi-axis adjustment of the near-end adjusting moving ring,
further, the proximal end adjusting moving ring is in a circular ring shape, the diameter of the fracture position of the femur is larger than or equal to that of the proximal end adjusting moving ring, a plurality of connecting pieces are uniformly fixed on the periphery of the proximal end adjusting moving ring, and the second universal shaft is detachably connected with the connecting pieces.
Further, the upper surface of the adjusting arm is provided with a plurality of grooves which are in linear arrangement, the fixing support is provided with an elastic positioning bolt, and the elastic positioning bolt is in fit and clamping connection with the grooves.
The invention can adopt the elastic locating bolt to adjust the position of the near-end fixed bracket when in use, can be suitable for various positions, has strong adjustable capability and higher practicability.
Further, the device also comprises a distal fixing device, wherein the distal fixing device comprises a distal fixing bracket, a distal adjusting bracket and a distal fixing arc;
the far-end fixing support, the far-end adjusting support and the far-end fixing arc are divided into two groups;
one end of each group of the distal end fixing brackets is fixed on two sides of the operating table and is far away from the proximal end fixing brackets, the other ends of the distal end fixing brackets are in sliding connection with one end of the distal end adjusting brackets, the other ends of the distal end adjusting brackets are provided with universal heads, and the universal heads are detachably connected with the distal end fixing arcs;
the two groups of the far-end fixed circular arcs are oppositely arranged to form a circular ring shape.
The invention fixes and adjusts the far end of the fracture part through the far end fixing arc, is beneficial to ensuring the accuracy of fracture reduction, can support the far end of the fracture of a fracture patient in the later stage and prevents secondary damage caused by movement of the fracture.
The inner surface of the fixed arc can be provided with a flexible object, so that friction damage of the fixed arc to a human body is prevented.
Further, a plurality of positioning holes are formed in the vertical surface of the distal fixing support, a positioning bolt is arranged at one end of the distal adjusting support, and the positioning bolt penetrates through the positioning holes to be hinged with the distal fixing support.
When the fracture fixing device is used, the fracture patient can be in a comfortable position by adjusting the proximal fixing support, the proximal adjusting fixing ring, the adjusting rod, the proximal adjusting moving ring and the distal fixing device in a multi-angle six-axis direction, the fracture area is fixed, the operation is convenient, the postoperative recovery is convenient, the angle adjusting capability is strong, the practicability is high, the adjustment is flexible and accurate, and the later recovery of the fracture area is facilitated.
Compared with the prior art, the fracture auxiliary reset mechanism provided by the invention has the following beneficial effects:
1. the invention is different from the general traditional internal fixation and external fixation modes, realizes multi-angle visual adjustment, has high adaptability, can fix and adjust the fracture area, and is accurate in adjustment; the soft tissue injury is small, the fixation is firm, the fixed area is small and convenient to manage, and the adjacent joint movement is not influenced.
2. According to the invention, the positions and the connection modes of the structures are reasonably designed, and the far-end fixing devices are arranged on the corresponding structures, so that the fixed far-end joints can be supported, single action can be maintained for a long time, the fracture part is maintained, and the rehabilitation of fracture patients is facilitated.
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 to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing the overall structure of the fracture auxiliary resetting mechanism.
Fig. 2 is a schematic view of the structure of the adjusting rod in the fracture auxiliary resetting mechanism.
FIG. 3 is a schematic view of the structure of the proximal end adjusting movable ring in the fracture auxiliary restoring mechanism.
Fig. 4 is a schematic diagram showing the connection structure of the adjusting arm and the fixing bracket in the fracture auxiliary resetting mechanism.
Wherein, in the figure: 1 is a proximal fixed bracket, 11 is an elastic positioning bolt, 2 is a proximal adjusting fixed ring, 21 is an adjusting arm, 211 is a groove, 3 is an adjusting rod, 31 is an outer tube, 32 is an inner rod, 33 is an adjusting tube, 34 is an adjusting cylinder, 35 is an adjusting thread groove, 37 is an inserting groove, 39 is an inserting hole, 4 is a proximal adjusting moving ring, 41 is a connecting piece, 5 is a first universal shaft, 6 is a second universal shaft, 7 is a distal fixed bracket, 71 is a positioning hole, 8 is a distal adjusting bracket, 81 is a universal head, and 9 is a distal fixed arc.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
As shown in the overall structure schematic diagram of the fracture auxiliary reset mechanism of the drawing of fig. 1, the embodiment of the invention discloses a fracture auxiliary reset mechanism, which comprises a proximal fixed support 1, a proximal adjusting fixed ring 2, an adjusting rod 3 and a proximal adjusting movable ring 4, wherein one end of the proximal fixed support 1 is fixed on two sides of an operating table, two sides of the proximal adjusting fixed ring 2 are provided with adjusting arms 21 extending outwards, the other end of the proximal fixed support 1 is clamped on the adjusting arms 21 and is movably connected with the adjusting arms 21, a plurality of adjusting rods 3 are arranged, one end of each adjusting rod 3 is connected with a first universal shaft 5, the other end of each adjusting rod 3 is connected with a second universal shaft 6, the fixed end of each first universal shaft 5 is fixedly connected with the proximal adjusting fixed ring 2, and the second universal shaft 6 is detachably connected with the proximal adjusting movable ring 4.
The proximal end adjusting moving ring 4 in this embodiment is connected with the plurality of adjusting rods 3 through the first universal shaft 5, so that the position of the proximal end adjusting moving ring 4 can be adjusted and fixed by six-axis multi-angle adjusting of the proximal end adjusting moving ring 4, the femur has the advantages of high efficiency, flexible adjustment, convenience and accuracy, various diameters of the proximal end adjusting moving ring in this embodiment are available, the position fixing is applicable to various conditions, the universality is strong, and the angle and the direction of the fracture part are easy to adjust.
In this embodiment, the proximal adjustment fixing ring 2 is regular hexagonal, and the sealing ring formed by the proximal adjustment fixing ring 2 is sufficient to accommodate the root of the thigh of the adult.
In this embodiment, the adult stretches into the proximal end adjusting and fixing ring 2 with the fracture position and then carries out the fixed of fracture position, and six axial adjustment can be realized to adjusting and fixing ring 2, and adjustable degree is high, is convenient for the accurate cutting recovery of fracture.
In other embodiments, the proximal adjustment retaining ring 2 is any one of circular, square, and any polygonal shape.
Fig. 2 is a schematic structural diagram of an adjusting rod 3 in the fracture auxiliary resetting mechanism of the embodiment, the adjusting rod 3 is a progressive adjusting telescopic rod, the progressive adjusting telescopic rod comprises an outer tube 31, one end of the outer tube 31 is of a tubular structure and is hinged with a first universal shaft 5, an inner rod 32 is inserted into the outer tube 31, the inner rod 32 is of a rod-shaped structure, the inner rod 32 is parallel to the axial direction of the outer tube 31, an installation frame is arranged at the end part of the inner rod 32 and is hinged with a second universal shaft 6, an adjusting tube 33 is sleeved on the outer surface of the inner rod 32, an adjusting cylinder 34 is arranged on the outer surface of the adjusting cylinder 33, an adjusting threaded groove 35 is arranged on the outer surface of the adjusting cylinder 34, an inserting groove 37 is arranged on the axial direction of the outer tube 31, an inner thread is arranged on the inner surface of the adjusting threaded groove 35 and is matched with the inner thread of the inner surface of the outer tube 31, an inserting hole 39 is arranged in the axial direction of the adjusting tube 33, the inner rod 32 is inserted into the position of the inserting hole 39, and the adjusting tube 33 and the adjusting tube 34 are of an integral structure.
In other embodiments, the adjusting rod 3 is a hydraulic adjusting telescopic rod, and the hydraulic adjusting telescopic rod is matched with a servo motor to accurately control the telescopic distance of the hydraulic adjusting telescopic rod.
In this embodiment, the proximal adjustment moving ring 4 is annular, the diameter of the proximal adjustment moving ring 4 is equal to or greater than the fracture diameter of the femur, and a plurality of connecting members 41 are uniformly fixed around the proximal adjustment moving ring, and the second universal shaft 6 is detachably connected with the connecting members 41.
In this embodiment, the upper surface of the adjusting arm 21 is provided with a plurality of grooves 211 in a linear arrangement, the fixing bracket 1 is provided with an elastic positioning bolt 11, and the elastic positioning bolt 11 is in fit and clamping connection with the grooves 211.
In this embodiment, the device further comprises a distal fixing device, wherein the distal fixing device comprises a distal fixing bracket 7, a distal adjusting bracket 8 and a distal fixing arc 9.
A distal fixing bracket 7, a distal adjusting bracket 8 and a distal fixing arc 9 are divided into two groups;
one end of each group of distal end fixing brackets 7 is fixed on two sides of the operating table and is far away from the proximal end fixing brackets 1, the other end of each distal end fixing bracket 7 is in sliding connection with one end of a distal end adjusting bracket 8, the other end of each distal end adjusting bracket 8 is provided with a universal head 81, and the universal heads 81 are detachably connected with a distal end fixing arc 9;
the embodiment is beneficial to ensuring the accuracy of fracture reduction by fixing and adjusting the far end of the fracture part through the far end fixing arc 9, and can support the far end of the fracture of a fracture patient in the later stage to prevent secondary injury caused by movement of the fracture.
The two groups of far-end fixed circular arcs 9 are oppositely arranged to form a circular ring shape.
In this embodiment, a plurality of positioning holes 71 are formed in the vertical surface of the distal fixing support 7, a positioning bolt is arranged at one end of the distal adjusting support 8, and the positioning bolt passes through the positioning holes 71 and is hinged with the distal fixing support 7.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The fracture auxiliary reset mechanism is characterized by comprising a proximal fixed support (1), a proximal adjusting fixed ring (2) and an adjusting rod (3), wherein the adjusting rod (3) is an adjusting telescopic rod, a proximal adjusting movable ring (4), one end of the proximal fixed support (1) is fixed on two sides of an operation table, adjusting arms (21) which extend outwards are arranged on two sides of the proximal adjusting fixed ring (2), the other end of the proximal fixed support (1) is clamped on the adjusting arms (21) and is movably connected with the adjusting arms (21), the adjusting rod (3) is multiple, one end of the adjusting rod (3) is connected with a first universal shaft (5), the other end of the adjusting rod is connected with a second universal shaft (6), the fixed end of the first universal shaft (5) is fixedly connected with the proximal adjusting fixed ring (2), and the second universal shaft (6) is detachably connected with the proximal adjusting movable ring (4);
the device also comprises a distal fixing device, wherein the distal fixing device comprises a distal fixing bracket (7), a distal adjusting bracket (8) and a distal fixing arc (9);
the two groups of the far-end fixing brackets (7), the far-end adjusting brackets (8) and the far-end fixing circular arcs (9) are arranged;
one end of each group of the far-end fixing brackets (7) is fixed on two sides of an operating table and far away from the near-end fixing brackets (1), the other end of each far-end fixing bracket (7) is in sliding connection with one end of each far-end adjusting bracket (8), the other end of each far-end adjusting bracket (8) is provided with a universal head (81), and the universal heads (81) are detachably connected with the far-end fixing circular arcs (9);
the two groups of far-end fixed circular arcs (9) are oppositely arranged to form a circular ring shape;
the proximal end adjusting and fixing ring (2) is any one of a circle and a polygon.
2. A fracture aid reducing mechanism according to claim 1, wherein the proximal adjustment fixation ring (2) forms a seal sufficient to accommodate the root of an adult thigh.
3. The fracture auxiliary reset mechanism according to claim 1, wherein the adjusting rod (3) is a progressive adjusting telescopic rod, the progressive adjusting telescopic rod comprises an outer tube (31), one end of the outer tube (31) is hinged to the first universal shaft (5), an inner rod (32) is inserted into the outer tube (31), the inner rod (32) is of a rod-shaped structure, the inner rod (32) is parallel to the axial direction of the outer tube (31), a mounting rack is arranged at the end part of the inner rod (32) and hinged to the second universal shaft (6), an adjusting tube (33) is sleeved on the outer surface of the inner rod (32), an adjusting cylinder (34) is arranged on the outer surface of the adjusting tube (33), an adjusting threaded groove (35) is arranged on the outer surface of the adjusting cylinder (34), an inserting groove (37) is arranged on the axial direction of the outer tube (31), the adjusting threaded groove (35) is matched with the inner thread of the inner surface of the outer tube (31), an adjusting hole (39) is arranged on the axial direction of the adjusting tube (33), and the adjusting cylinder (33) is of the adjusting cylinder (33) and the adjusting cylinder (39) is of the adjusting cylinder (33).
4. A fracture auxiliary reduction mechanism according to claim 3, wherein the proximal end adjusting moving ring (4) is annular, the diameter of the fracture position of the femur is greater than or equal to that of the proximal end adjusting moving ring (4), a plurality of connecting pieces (41) are uniformly fixed on the periphery of the proximal end adjusting moving ring, and the second universal shaft (6) is detachably connected with the connecting pieces (41).
5. The fracture auxiliary reduction mechanism according to claim 4, wherein a plurality of grooves (211) which are linearly arranged are formed in the upper surface of the adjusting arm (21), an elastic positioning bolt (11) is arranged on the proximal fixing support (1), and the elastic positioning bolt (11) is in fit and clamping connection with the grooves (211).
6. The fracture auxiliary reduction mechanism according to claim 1, wherein a plurality of positioning holes (71) are formed in the vertical surface of the distal fixing support (7), one end of the distal adjusting support (8) is provided with a positioning bolt, and the positioning bolt passes through the positioning holes (71) and is hinged with the distal fixing support (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290814.6A CN109966106B (en) | 2019-04-11 | 2019-04-11 | Auxiliary reduction mechanism for fracture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290814.6A CN109966106B (en) | 2019-04-11 | 2019-04-11 | Auxiliary reduction mechanism for fracture |
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| CN109966106B true CN109966106B (en) | 2023-11-21 |
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