CN108392365B - Lower limb fracture reduction device - Google Patents
Lower limb fracture reduction device Download PDFInfo
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- CN108392365B CN108392365B CN201810290664.4A CN201810290664A CN108392365B CN 108392365 B CN108392365 B CN 108392365B CN 201810290664 A CN201810290664 A CN 201810290664A CN 108392365 B CN108392365 B CN 108392365B
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- ring
- seat
- adjusting
- tibia
- traction
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/042—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for extension or stretching
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- 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
- A61G13/125—Ankles or feet
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- 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
Abstract
A lower limb fracture reduction device relates to the technical field of surgical medical appliances, and is provided with a supporting seat, wherein a tibia reduction plate is arranged on the supporting seat, the rear part of the tibia reduction plate is hinged with the rear part of the supporting seat, an adjusting support rod is hinged on the supporting seat, and a clamping groove matched with the upper end of the adjusting support rod is arranged on the lower side of the tibia reduction plate; the rear part of the tibia resetting plate is provided with a connecting seat, the connecting seat is provided with a traction resetting device, the traction resetting device comprises a mounting seat, a connecting sleeve, a connecting slide rod, an adjusting sleeve, a mounting ring, a locking ring, a sliding ring and an adjusting ring, and the front end of the connecting slide rod of the traction resetting device is provided with a traction bow. The invention has the advantages of simple structure, convenient use, simple operation, time and labor saving, high resetting speed, good resetting effect and the like.
Description
Technical Field
The invention relates to the technical field of surgical medical instruments, in particular to a lower limb fracture reduction device which is simple in structure, convenient to use, easy to operate, time-saving, labor-saving, high in reduction speed and good in reduction effect.
Background
When the lower limb fracture reduction operation is performed, the fracture dislocation deformation is adopted, and the dislocated position is required to be well reduced during the operation, so that the next operation can be performed; in particular, when the tibia fracture needs to be implanted into an intramedullary nail, after the tibia fracture is reset, a patient is required to bend the knee by a certain angle to implant the intramedullary nail. At present, the operation of lower limb fracture reduction is as follows: a doctor holds the ankle by hand to pull and reduce the fracture; because the person can not be fixed at a certain position and is unchanged, secondary dislocation is easy to cause during operation, whether an ideal resetting effect is achieved or not is required to be determined through multiple perspectives, the operation time is long, and secondary injury is easy to be caused to a patient.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides the lower limb fracture reduction device which is simple in structure, convenient to use, easy to operate, time-saving and labor-saving, high in reduction speed and good in reduction effect.
The invention solves the defects of the prior art, adopts the following technical proposal:
the lower limb fracture reduction device is characterized by being provided with a supporting seat, wherein a tibia reduction plate is arranged on the supporting seat, the rear part of the tibia reduction plate is hinged with the rear part of the supporting seat, an adjusting support rod is hinged on the supporting seat, and a clamping groove matched with the upper end of the adjusting support rod is arranged on the lower side of the tibia reduction plate; the back of the tibia reset plate is provided with a connecting seat, the connecting seat is provided with a traction reset device, the traction reset device comprises a mounting seat, a connecting sleeve, a connecting slide bar, an adjusting sleeve, a mounting ring, a locking ring, a sliding ring and an adjusting ring, the connecting sleeve consists of an anti-rotation tube and a traction tube, the anti-rotation tube is coaxially fixed on the front end of the traction tube, the outer diameter of the anti-rotation tube is smaller than that of the traction tube, a through hole in the middle of the anti-rotation tube is a polygonal slide hole, the front part of the connecting slide bar is a polygonal slide bar matched with the polygonal slide hole in the middle of the anti-rotation tube, and the polygonal slide bar can be axially and freely inserted in the anti-rotation tube; the mounting ring, the sliding ring and the adjusting ring are sleeved on the connecting sleeve in a way that the mounting ring, the sliding ring and the adjusting ring can rotate freely in sequence at the rear side of the mounting seat; the middle part of the inner side of the mounting ring is provided with a positioning baffle ring, the mounting ring at the front side of the positioning baffle ring is internally provided with a positioning end ring capable of freely rotating, the locking ring is arranged at the rear side of the positioning baffle ring, the locking ring is fixedly connected with the positioning end ring, the positioning end ring and the locking ring can rotate relative to the mounting ring, the mounting ring is fixedly arranged on the mounting seat, the locking ring is fixedly connected with the connecting sleeve, the opposite surfaces of the locking ring and the sliding ring are respectively provided with end surface teeth matched with each other, and a separation pressure spring is arranged between the opposite surfaces of the locking ring and the sliding ring; the rear end face of the mounting ring is provided with a guide sliding rod, the sliding ring is provided with a sliding hole matched with the guide sliding rod, the sliding ring is sleeved on the guide sliding rod through the sliding hole, the opposite faces of the sliding ring and the adjusting ring are respectively provided with a spherical groove and a spherical bulge which are matched with each other, the traction pipe is provided with an external thread and an internal thread, the outer side of the traction pipe at the rear side of the adjusting ring is in threaded connection with an adjusting nut, and the outer side of the traction pipe at the rear side of the adjusting nut is in threaded connection with a locking nut; the adjusting sleeve is sleeved at the rear part of the connecting slide rod in a freely rotatable manner and is in threaded connection with the inner side of the traction pipe, the rear end of the adjusting sleeve is provided with a rear end cover, a connecting slide hole is formed in the rear end cover, a connecting bolt capable of rotating in the connecting slide hole is arranged at the rear side of the rear end cover, and the front end of the connecting bolt is fixedly connected with the rear end part of the connecting slide rod; the front end of the connecting sliding rod of the traction restorer is provided with a traction bow.
The invention discloses a sliding ring, which is characterized in that an arc-shaped limiting groove concentric with the sliding ring is arranged on the rear end face of the sliding ring, a limiting sliding column matched with the arc-shaped limiting groove is arranged on the front end face of the adjusting ring, and the limiting sliding column can be freely and slidably inserted into the arc-shaped limiting groove. The limit sliding column is matched with the arc limit groove, so that a doctor can grasp the matching state between the adjusting ring and the sliding ring more easily.
The connecting slide rod extends out of the mounting seat forwards, and the front end part of the connecting slide rod is provided with a traction bow connecting hole. The traction bow is convenient to be connected with the connecting sliding rod.
The support seat is rectangular plate-shaped, the rear end part of the support seat is provided with two support rods, and the rear part of the tibia reset plate is respectively hinged with the two support rods; the left side and the right side of the front part of the supporting seat are respectively hinged with an adjusting supporting rod, the upper end of the adjusting supporting rod is provided with a clamping positioning rod, and a clamping groove arranged on the lower side of the tibia resetting plate is matched with the clamping positioning rod in a clamping way.
The clamping groove is characterized in that at least one row of clamping protrusions are arranged on the lower side face of the tibia reset plate, and a clamping groove is arranged between two adjacent clamping protrusions.
The tibia reset plate is uniformly provided with connecting jacks, the tibia reset plate is provided with three reset thrusters, each reset thruster comprises a push seat, a push plate and a push-pull screw rod, the lower side of the push seat is provided with a plug pin matched with the connecting jacks, the push-pull screw rod is arranged on the push seat through a screw hole on the push seat, the push-pull screw rod on one side of the push seat is provided with a force application handle, and the push plate can be relatively rotatably arranged on the end part of the push-pull screw rod on the other side of the push seat. When the device is used, the two reset thrusters are fixed on the tibia reset plate on one side of the lower limb through the inserting pin, the other reset thruster is fixed on the tibia reset plate on the other side of the lower limb and between the two fixed reset thrusters, the push plate is opposite to the lower limb, and the push plate rotates the push-pull screw rod through the force application handle, so that the push plate pushes the tibia at the fracture position to accurately reset.
The rear end of the tibia reset plate is provided with the adjusting seat, the front and rear directions of the adjusting seat are provided with at least two distance adjusting seats, and the connecting seat is detachably connected with the distance adjusting seats. According to patients of different ages or heights, the connecting seat can be connected with different distance adjusting seats, and the application range is wide.
When the invention is used, the invention is placed on an operating table through the supporting seat, the tibia of a patient is placed on the upper side of the tibia resetting plate, the angle between the tibia resetting plate and the supporting seat is adjusted through the cooperation of the adjusting support rod and different clamping grooves, the knee bending angle of the patient is further adjusted, the adjusting ring is rotated, the spherical bulge on the opposite surface of the sliding ring and the adjusting ring are separated from the spherical groove, the adjusting ring presses the sliding ring to overcome the elastic force of the separating pressure spring to slide forwards, the end face teeth on the opposite surface of the locking ring and the sliding ring are meshed with each other, the traction bow is linked with the ankle through the guide pin, the adjusting sleeve and the adjusting sleeve are rotated backwards relative to the traction tube, and the traction connecting slide rod is pulled backwards to drive the traction bow to pull and reset the tibia of the patient. When the patient twists and dislocates the fracture, the adjusting ring is rotated, the spherical bulge on the opposite surface of the sliding ring and the adjusting ring is embedded into the spherical groove, the sliding ring slides backwards under the action of the elasticity of the separating pressure spring, the end face teeth on the opposite surface of the locking ring and the sliding ring are separated, the rotating connecting sleeve is rotated, and the traction bow is driven to rotate to reset the tibia of the patient. The invention has the advantages of simple structure, convenient use, simple operation, time and labor saving, high resetting speed, good resetting effect, effective prevention of secondary injury of fracture patients, and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the traction reduction device according to the present invention.
Fig. 3 is a schematic view of an exploded construction of the pull-down reducer of the present invention.
Fig. 4 is a schematic view of an exploded view of another aspect of the pull-down reducer of the present invention.
Fig. 5 is a schematic structural view of the coupling sleeve and the coupling slide bar of the present invention mated with each other.
Fig. 6 is a partial enlarged view at a in fig. 3.
Fig. 7 is a partial enlarged view at B in fig. 4.
Reference numerals: the device comprises a force application handle 1, a push plate 2, a push seat 3, a plug pin 4, a traction bow 5, a tibia reset plate 6, a connection jack 7, a mounting seat 8, an adjusting ring 9, an adjusting nut 10, an adjusting sleeve 11, an adjusting seat 12, a connection seat 13, a supporting rod 14, a supporting seat 15, an adjusting supporting rod 16, a clamping protrusion 17, a connecting sliding rod 18, a rear end cover 19, a locking nut 20, a connecting sleeve 21, a mounting ring 22, a locking ring 23, end face teeth 24 on the locking ring, an arc-shaped limiting groove 25, a spherical groove 26, a sliding ring 27, a separation pressure spring 28, a guide sliding rod 29, a positioning end ring 30, end face teeth 31 on the sliding ring, a limiting sliding column 32 and a spherical protrusion 33.
Description of the embodiments
The lower limb fracture reduction device is provided with a platy supporting seat 15, a tibia reduction plate 6 is arranged on the supporting seat 15, the rear part of the tibia reduction plate 6 is hinged with the rear part of the supporting seat 15, an adjusting support rod 16 is hinged on the supporting seat 15, and a clamping groove matched with the upper end of the adjusting support rod 16 is arranged on the lower side of the tibia reduction plate; the back of the tibia reset plate 6 is provided with a connecting seat 13, the connecting seat 13 is provided with a traction reset device, the traction reset device comprises a mounting seat 8, a connecting sleeve 21, a connecting slide bar 18, an adjusting sleeve 11, a mounting ring 22, a locking ring 23, a sliding ring 27 and an adjusting ring 9, the mounting seat 8 is fixedly connected with the connecting seat 13, the connecting sleeve 21 consists of an anti-rotation tube and a traction tube, the anti-rotation tube is coaxially fixed on the front end of the traction tube, the outer diameter of the anti-rotation tube is smaller than the outer diameter of the traction tube, a through hole in the middle of the anti-rotation tube is a six-polygon slide hole, the front part of the connecting slide bar 18 is a polygon slide bar matched with the polygon slide hole in the middle of the anti-rotation tube, the back part is a cylinder bar, and the polygon slide bar can axially freely slide and circumferentially can not rotate and is inserted in the anti-rotation tube; the mounting ring 22, the sliding ring 27 and the adjusting ring 9 are sleeved on the connecting sleeve 21 in a sequentially freely rotatable manner at the rear side of the mounting seat 8, and the sliding ring 27 can axially slide; the middle part of the inner side (axial direction) of the mounting ring 22 is provided with a positioning baffle ring (protruding inwards), the mounting ring at the front side of the positioning baffle ring is internally provided with a positioning end ring 30 capable of freely rotating, the positioning end ring is sleeved on the anti-rotation pipe in a free rotating way, the locking ring 23 is arranged in the mounting ring 22 between the mounting ring and the sliding ring, the locking ring 23 and the positioning end ring 30 are fixedly connected through bolts penetrating through the middle through holes of the positioning baffle ring, the positioning end ring 30 and the locking ring 23 can relatively rotate with the mounting ring 22, the mounting ring 22 is fixed on the mounting seat 8 through bolts, the middle part of the front end of the mounting seat 8 is provided with a shaft hole, the anti-rotation pipe at the front part of the connecting sleeve 21 can freely rotate and is inserted in the shaft hole of the mounting seat, the locking ring 23 is fixedly connected with the connecting sleeve 21, the bolts penetrating through the middle through holes of the positioning baffle ring are fixedly arranged on the front end faces of the traction pipe, the locking ring 23 and the sliding ring 27 are fixedly provided with end face teeth matched with each other (the rear end face of the locking ring and the front end face of the sliding ring) respectively, as shown in fig. 6, 7, the end faces of the locking ring 24 and the tooth can be separated or the opposite tooth can be meshed with each other. A separation pressure spring 28 is arranged between the opposite surfaces (the outer side or the inner side of the end face teeth) of the locking ring 23 and the sliding ring 27, and the separation pressure spring 28 is a disc spring; the rear end face of the mounting ring 22 is provided with a guide slide bar 29, the sliding ring 27 is provided with a slide hole matched with the guide slide bar, the sliding ring can slide back and forth through the slide hole and can not be sleeved on the guide slide bar in a mutual rotating way, the opposite faces of the sliding ring and the adjusting ring are respectively provided with a spherical groove 26 and a spherical bulge 33 matched with each other, as can be seen from figures 6 and 7, the rear end face of the sliding ring 27 is provided with three spherical grooves 26 in a circular array, and the front end face of the adjusting ring 9 is provided with three spherical bulges 33 matched with the spherical grooves 26 in a circular array; when the adjusting ring and the sliding ring rotate relatively, the spherical protrusion 33 can be embedded into the spherical groove 26 or slide out of the spherical groove 26, so as to drive the adjusting ring and the sliding ring to move relatively axially. The traction tube is provided with external threads and internal threads, the outer side of the traction tube at the rear side of the adjusting ring 9 is in threaded connection with an adjusting nut 10, and the outer side of the traction tube at the rear side of the adjusting nut 10 is in threaded connection with a locking nut 20; the adjusting sleeve 11 is sleeved at the rear part of the connecting slide bar 18 in a freely rotatable manner and is in threaded connection with the inner side of the traction tube, the rear end of the adjusting sleeve 11 is fixedly provided with a rear end cover 19, the rear end cover 19 is provided with a connecting slide hole, the rear side of the rear end cover 19 is provided with a connecting bolt capable of rotating in the connecting slide hole, and the front end of the connecting bolt is fixedly connected with the rear end part of the connecting slide bar 18; the traction bow 5 is arranged at the front end of the connecting sliding rod 18 of the traction restorer.
According to a further improvement of the invention, an arc-shaped limiting groove 25 concentric with the sliding ring is arranged on the rear end face of the sliding ring 27, a limiting slide column 32 matched with the arc-shaped limiting groove 25 is arranged on the front end face of the adjusting ring 9, and the limiting slide column 32 can be freely and slidably inserted into the arc-shaped limiting groove 25; the limit sliding column 32 is matched with the arc limit groove 25, so that a doctor can grasp the matching state between the adjusting ring and the sliding ring more easily. The connecting slide bar extends out of the mounting seat forwards, and a traction bow connecting hole is formed in the front end of the connecting slide bar; the connection between the traction bow and the connecting sliding rod is facilitated. The support seat 15 is rectangular plate-shaped, the rear end part of the support seat 15 is provided with two support rods 14, and the rear part of the tibia reset plate 6 is respectively hinged with the upper ends of the two support rods 14; the left and right sides of the front part of the supporting seat 15 are respectively hinged with an adjusting supporting rod 16, the upper ends of the two adjusting supporting rods 16 are provided with clamping positioning rods (parallel to the supporting seat and the tibia resetting plate), and the lower side of the tibia resetting plate is provided with clamping grooves (parallel to the supporting seat and the tibia resetting plate) which are matched with the clamping positioning rods in a clamping way; the clamping grooves are formed in the left side and the right side of the lower side of the tibia reset plate, two parallel clamping bulges 17 are arranged in front of and behind the lower side of the tibia reset plate, and a clamping groove is formed between two adjacent clamping bulges 17.
According to the invention, the tibia reset plate 6 is uniformly provided with the connecting jacks 7, the tibia reset plate is provided with three reset thrusters, each reset thruster comprises a push seat 3, a push plate 2 and a push-pull screw rod, two plug pins 4 which are respectively matched with the two connecting jacks 7 on the tibia reset plate are arranged on the lower side of the push seat 3, the push-pull screw rod is arranged on the push seat through a screw hole on the push seat 3, the push-pull screw rod on one side of the push seat is provided with a force application handle 1, and the push plate 2 is arranged on the end part of the push-pull screw rod on the other side of the push seat in a relatively rotatable manner through a ball joint. When the device is used, the two reset thrusters are fixed on the tibia reset plate on one side of the lower limb through the inserting pin, the other reset thruster is fixed on the tibia reset plate on the other side of the lower limb and between the two fixed reset thrusters, the push plate is opposite to the lower limb, and the push plate rotates the push-pull screw rod through the force application handle, so that the push plate pushes the tibia at the fracture position to accurately reset. The tibia reset plate 6 is provided with an adjusting seat 12 at the rear end, at least two distance adjusting seats are arranged in the front-back direction of the adjusting seat 12, and a connecting seat 13 is detachably connected with the distance adjusting seats through bolts. According to patients of different ages or heights, the connecting seat can be connected with different distance adjusting seats, and the application range is wide.
When the invention is used, the invention is placed on an operating table through the supporting seat, the tibia of a patient is placed on the upper side of the tibia resetting plate (the front side of the tibia resetting plate is propped against the leg bend), the angle between the tibia resetting plate and the supporting seat is adjusted through the cooperation of the adjusting support rod and different clamping grooves, the knee bending angle of the patient is further adjusted, the traction bow is linked with the ankle through the guide pin, the adjusting ring is rotated, the spherical bulge on the opposite surface of the sliding ring and the adjusting ring is separated from the spherical groove, and the adjusting ring presses the sliding ring to slide forwards against the elasticity of the separating pressure spring, so that the end face teeth on the opposite surface of the locking ring and the sliding ring are meshed with each other; at the moment, the locking ring is fixedly connected with the mounting seat through the sliding ring mounting ring, the positioning end ring and the locking ring can not rotate relatively with the mounting ring, the connecting sleeve can not rotate and can only axially move, the adjusting sleeve is rotated through the rotating rear end cover, the traction tube of the adjusting sleeve relative to the connecting sleeve moves backwards, the traction connecting slide rod moves backwards, and the traction bow is driven to pull and reset the tibia of a patient. When the patient is twisted and misplaced and fractured, the adjusting ring is rotated, so that the spherical protrusions on the opposite surfaces of the sliding ring and the adjusting ring are embedded into the spherical grooves, the sliding ring slides backwards under the action of the elasticity of the separating pressure spring, the locking ring is separated from the end face teeth on the opposite surfaces of the sliding ring, and the connecting sleeve, the positioning end ring fixedly connected with the connecting sleeve and the locking ring can rotate relative to the mounting ring and the mounting seat; the connecting sleeve is rotated to drive the traction bow to rotate so as to reset the tibia of the patient. The invention has the advantages of simple structure, convenient use, simple operation, time and labor saving, high resetting speed, good resetting effect, effective prevention of secondary injury of fracture patients, and the like.
Claims (6)
1. The lower limb fracture reduction device is characterized by being provided with a support seat, wherein a tibia reduction plate is arranged on the support seat, the rear part of the tibia reduction plate is hinged with the rear part of the support seat, an adjusting support rod is hinged on the support seat, and a clamping groove matched with the upper end of the adjusting support rod is arranged on the lower side of the tibia reduction plate; the tibia reduction plate is characterized in that a connecting seat is arranged at the rear part of the tibia reduction plate, a traction reduction device is arranged on the connecting seat, the traction reduction device comprises a mounting seat, a connecting sleeve, a connecting slide bar, an adjusting sleeve, a mounting ring, a locking ring, a sliding ring and an adjusting ring, the connecting sleeve consists of an anti-rotation tube and a traction tube, the anti-rotation tube is coaxially fixed at the front end of the traction tube, the outer diameter of the anti-rotation tube is smaller than that of the traction tube, a through hole in the middle part of the anti-rotation tube is a polygonal slide hole, the front part of the connecting slide bar is a polygonal slide bar matched with the polygonal slide hole in the middle part of the anti-rotation tube, and the polygonal slide bar can be axially and freely inserted into the anti-rotation tube; the mounting ring, the sliding ring and the adjusting ring are sleeved on the connecting sleeve in a sequentially freely rotatable manner at the rear side of the mounting seat; the middle part of the inner side of the mounting ring is provided with a positioning baffle ring, the mounting ring at the front side of the positioning baffle ring is internally provided with a positioning end ring capable of freely rotating, the locking ring is arranged at the rear side of the positioning baffle ring, the locking ring is fixedly connected with the positioning end ring, the locking ring and the mounting ring can rotate relatively, the mounting ring is fixed on the mounting seat, the locking ring is fixedly connected with the connecting sleeve, the opposite surfaces of the locking ring and the sliding ring are respectively provided with mutually matched end surface teeth, and a separation pressure spring is arranged between the opposite surfaces of the locking ring and the sliding ring; the rear end face of the mounting ring is provided with a guide sliding rod, the sliding ring is provided with a first sliding hole matched with the guide sliding rod, the sliding ring is sleeved on the guide sliding rod through the first sliding hole, the opposite faces of the sliding ring and the adjusting ring are respectively provided with a spherical groove and a spherical bulge which are matched with each other, the traction pipe is provided with an external thread and an internal thread, the outer side of the traction pipe at the rear side of the adjusting ring is in threaded connection with an adjusting nut, and the outer side of the traction pipe at the rear side of the adjusting nut is in threaded connection with a locking nut; the adjusting sleeve is sleeved at the rear part of the connecting slide rod in a freely rotatable manner and is in threaded connection with the inner side of the traction pipe, a rear end cover is arranged at the rear end of the adjusting sleeve, a connecting slide hole is formed in the rear end cover, a connecting bolt capable of rotating in the connecting slide hole is arranged at the rear side of the rear end cover, and the front end of the connecting bolt is fixedly connected with the rear end part of the connecting slide rod; a traction bow is arranged at the front end of the connecting sliding rod of the traction restorer; the connecting slide bar extends forward out of the mounting seat, and a traction bow connecting hole is formed in the front end portion of the connecting slide bar.
2. The lower limb fracture reduction device according to claim 1, wherein the rear end face of the sliding ring is provided with an arc-shaped limiting groove concentric with the sliding ring, the front end face of the adjusting ring is provided with a limiting slide column matched with the arc-shaped limiting groove, and the limiting slide column can be freely and slidably inserted into the arc-shaped limiting groove.
3. The lower limb fracture reduction device according to claim 2, wherein the support base is rectangular plate-shaped, two support rods are arranged at the rear end part of the support base, and the rear part of the tibia reduction plate is respectively hinged with the two support rods; the left side and the right side of the front part of the supporting seat are respectively hinged with the adjusting supporting rod, the upper end of the adjusting supporting rod is provided with a clamping positioning rod, and the clamping groove arranged on the lower side of the tibia resetting plate is matched with the clamping positioning rod in a clamping way.
4. The lower limb fracture reduction device according to claim 3, wherein the clamping groove is at least one row of clamping bulges arranged on the lower side surface of the tibia reduction plate, and one clamping groove is arranged between two adjacent clamping bulges.
5. The lower limb fracture reduction device according to claim 4, wherein connecting jacks are uniformly distributed on the tibia reduction plate, three reduction thrusters are arranged on the tibia reduction plate, each reduction thruster comprises a push seat, a push plate and a push-pull screw rod, a plug pin matched with the connecting jack is arranged on the lower side of each push seat, each push-pull screw rod is arranged on each push seat through a screw hole on each push seat, a force application handle is arranged on each push-pull screw rod on one side of each push seat, and each push plate is rotatably arranged on the end part of each push-pull screw rod on the other side of each push seat.
6. The lower limb fracture reduction device according to claim 5, wherein the rear end of the tibia reduction plate is provided with an adjusting seat, at least two distance adjusting seats are arranged in the front-rear direction of the adjusting seat, and the connecting seat is detachably connected with the distance adjusting seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810290664.4A CN108392365B (en) | 2018-03-30 | 2018-03-30 | Lower limb fracture reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810290664.4A CN108392365B (en) | 2018-03-30 | 2018-03-30 | Lower limb fracture reduction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108392365A CN108392365A (en) | 2018-08-14 |
| CN108392365B true CN108392365B (en) | 2023-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810290664.4A Active CN108392365B (en) | 2018-03-30 | 2018-03-30 | Lower limb fracture reduction device |
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| US20060276786A1 (en) * | 2005-05-25 | 2006-12-07 | Brinker Mark R | Apparatus for accurately positioning fractured bone fragments toward facilitating use of an external ring fixator system |
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| CN101084848A (en) * | 2006-06-07 | 2007-12-12 | 北京天智航医疗技术有限公司 | Traction resetting device for treating bone fracture |
| CN103417274A (en) * | 2012-05-17 | 2013-12-04 | 董文伟 | Closed reduction surgical frame for tibial fracture of patient |
| CA2959262A1 (en) * | 2016-03-01 | 2017-09-01 | Innovative Medical Products, Inc. | Surgical patient positioner apparatus, system and method |
| CN106264692A (en) * | 2016-08-30 | 2017-01-04 | 河北医科大学第三医院 | A kind of shank and ankle fracture reduction by traction frame |
| CN106880465A (en) * | 2017-03-21 | 2017-06-23 | 北京思宇博特科技有限公司 | A kind of traction reduction equipment |
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| CN108392365A (en) | 2018-08-14 |
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