CN110537964A - Lower limb traction device for intramedullary nail surgery - Google Patents
Lower limb traction device for intramedullary nail surgery Download PDFInfo
- Publication number
- CN110537964A CN110537964A CN201910832613.4A CN201910832613A CN110537964A CN 110537964 A CN110537964 A CN 110537964A CN 201910832613 A CN201910832613 A CN 201910832613A CN 110537964 A CN110537964 A CN 110537964A
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- thigh
- traction
- supporting plate
- plate
- lower limb
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
Abstract
The invention discloses a lower limb traction device for intramedullary nail surgery, which comprises a bottom beam, a shank supporting plate, a thigh backup plate, a slide block, a traction needle, a traction bow and a traction mechanism, wherein the slide block is arranged on an axial slide way on the bottom beam and is provided with a slide block locking screw, the shank supporting plate and the thigh backup plate are hinged into a herringbone shape, the lower end of the thigh backup plate is rotatably connected with the head end of the bottom beam, the lower end of the shank supporting plate is rotatably connected with the slide block, thighs and shanks of a patient respectively lean against the upper parts of the shank supporting plate and the thigh backup plate, the traction needle penetrates through the far ends of anklebones or shines of the patient and is connected between the two ends of the traction bow in parallel, and the bow back of the traction bow. The invention can keep the patient in a leg bending state and reliably pull the tibia, and all parts are not higher than the lower limb of the patient, thus not influencing the operation. The device can ensure the smooth operation of the femoral and tibial intramedullary nail implantation operation and improve the operation quality and efficiency.
Description
Technical Field
The invention relates to a lower limb traction device suitable for femoral and tibial intramedullary nail implantation surgery, belonging to the technical field of orthopedic medical instruments.
Background
Femur and shin bone fracture are the common fracture in clinic, because leg muscle strength is powerful, often can appear shortening deformity under the traction of muscle after patient's shin bone takes place, and it is comparatively difficult to restore to the throne in the art, resume its length and effectively maintain. If the patient can not be anatomically reduced during the operation, complications such as malformation healing and poor lower limb force line can occur after the operation, thereby causing traumatic arthritis or osteoarthritis and seriously affecting the limb function and the life quality of the patient.
Intramedullary nail fixation is a common treatment method for femoral and tibial fractures, and intraoperative traction is an important means for reducing femoral and tibial fractures and recovering the length of lower limbs. At present, two assistants are generally needed to help a patient to be dragged during an intramedullary nail implanting operation, the two assistants respectively hold the near end and the far end of a broken bone to reposition a femur or a tibia, however, the fracture repositioning and the lower limb length cannot be stably maintained by the method, the repositioning effect is not ideal, and the treatment effect is affected; moreover, the two assistants can crowd the space of the operator and influence the operation of the operator.
The traction device is adopted to reset the fractured femur or tibia, so that the defects can be overcome, but the existing traction device generally needs to occupy the upper space of the lower limb of a patient to influence the operation, the existing traction device straightens the lower limb, an intramedullary nail is implanted from the far end of the femur or the near end of the tibia, and the patient can only perform the operation by keeping the leg bending posture. Therefore, it is necessary to design a lower limb traction device suitable for intramedullary nail implantation operation.
Disclosure of Invention
The invention aims to provide a lower limb traction device for intramedullary nail operation, aiming at the defects of the prior art, so that a femur or a tibia can be stably kept in a reset state required by implanting an intramedullary nail under the condition of not influencing operation.
In order to achieve the purpose, the invention adopts the following technical scheme:
The lower limb traction device for intramedullary nail surgery comprises a bottom beam, a shank supporting plate, a thigh backup plate, a sliding block, a traction needle, a traction bow and a traction mechanism, wherein the sliding block is arranged on an axial slide way on the bottom beam and is provided with a sliding block locking screw, the shank supporting plate and the thigh backup plate are hinged into a herringbone shape, the lower end of the thigh backup plate is rotatably connected with the head end of the bottom beam, the lower end of the shank supporting plate is rotatably connected with the sliding block, a thigh and a shank of a patient lean against the upper parts of the shank backup plate and the shank supporting plate respectively, the traction needle penetrates through the far ends of the ankle bones or the shin bones of the patient and is connected between the two ends of the traction bow, and the bow back of the traction bow is.
Above-mentioned a low limbs draw gear for intramedullary nail operation, traction mechanism includes vertical slide rail, elevator, screw, lead screw and hand wheel, the tail end at the floorbar is fixed to vertical slide rail, elevator and vertical slide rail sliding connection are equipped with elevator locking screw, the screw rotates with the elevator to be connected, the lead screw passes through screw thread and screw cooperation, and the one end of lead screw is rotated with the back of the bow of drawing the bow and is connected, the other end and hand wheel fixed connection.
Above-mentioned a low limbs draw gear for intramedullary nail operation, the lower extreme of thigh backup plate passes through the sleeve and is connected with the head end rotation of floorbar, the sleeve suit at the lower extreme of thigh backup plate and with thigh backup plate sliding connection, telescopic lower extreme is connected through rotating with the head end of floorbar vertically horizontal rotating shaft and floorbar, is connected with telescopic machanism between thigh backup plate and sleeve, telescopic machanism includes lead screw and nut, the nut is fixed on the sleeve, the lead screw passes through screw and nut cooperation, and the one end and the thigh backup plate rotation of lead screw are connected, and the other end is equipped with the turning handle.
The lower limb traction device for intramedullary nail surgery further comprises a broken bone resetting mechanism, the broken bone resetting mechanism comprises a binding belt, a jacking bolt, a side pressure plate, a side pressure bolt and a fixing bolt, the binding belt binds the lower limb of a patient on a shank supporting plate or a thigh backing plate, the jacking bolt is screwed into the jacking bolt hole of the shank supporting plate or the thigh backing plate and abuts against the lower part of the lower limb of the patient, the lower end of the side pressure plate is fixed on the side part of the shank supporting plate or the thigh backing plate through the fixing bolt, and the side pressure bolt is screwed into a threaded hole in the side pressure plate and abuts against the side part of the lower limb of the patient.
according to the lower limb traction device for intramedullary nail surgery, the two sides of the shank supporting plate and the thigh backing plate are respectively provided with the plurality of fixing bolt holes, the middle parts of the shank supporting plate and the thigh backing plate are respectively provided with the plurality of jacking bolt holes, and the fixing bolt holes and the jacking bolt holes are uniformly arranged along the length direction of the shank supporting plate and the thigh backing plate.
Above-mentioned a low limbs draw gear for intramedullary nail operation, the tail end middle part of floorbar is equipped with the opening, vertical slide rail sets up two, fixes respectively in the both sides of opening, elevator and two vertical slide rail sliding connection, screw and lead screw are corresponding with the opening of floorbar tail end.
The lower limb traction device for intramedullary nail surgery is characterized in that the lower part of the bottom beam is provided with the adjustable support legs.
In the lower limb traction device for intramedullary nail surgery, the surfaces of the shank supporting plate and the thigh backing plate corresponding to the shank and the thigh of the patient are arc concave surfaces.
The invention can keep the patient in a leg bending state and reliably pull the tibia, and all parts are not higher than the lower limb of the patient, thus not influencing the operation. The device can ensure the smooth operation of the femoral and tibial intramedullary nail implantation operation and improve the operation quality and efficiency. In addition, the invention has the advantages of simple structure, low cost, reliable performance and the like.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
Fig. 2 is a schematic view of the present invention in use (tibial intramedullary nail surgery).
The reference numbers in the figures are as follows: 1. the device comprises a hand wheel, 2, a nut, 3, a lead screw, 4, a traction bow, 5, a traction needle, 6, a jacking bolt, 7, a jacking bolt hole, 8, a side pressure bolt, 9, a side pressure plate, 10, a fixing bolt, 11, a shank supporting plate, 12, a thigh backing plate, 13, a lead screw, 14, a nut, 15, a rotating handle, 16, a sleeve, 17, an adjustable supporting leg, 18, a bottom beam, 19, a fixing bolt hole, 20, a sliding block locking screw, 21, a sliding block, 22, a lifting block locking screw, 23, a lifting block, 24, a vertical sliding rail, 25, lower limbs of a patient, 26 and a binding belt.
Detailed Description
Referring to fig. 1 and 2, the invention mainly comprises a hand wheel 1, a nut 2, a lead screw 3, a traction bow 4, a traction needle 5, a jacking bolt 6, a side pressure bolt 8, a side pressure plate 9, a fixing bolt 10, a shank supporting plate 11, a thigh backing plate 12, a lead screw 13, a nut 14, a rotating handle 15, a sleeve 16, an adjustable supporting leg 17, a bottom beam 18, a sliding block locking screw 20, a sliding block 21, a lifting block locking screw 22, a lifting block 23, a vertical sliding rail 24 and a binding belt 26.
The calf support plate 11, thigh rest plate 12 and base beam 18 form a stable triangular support for supporting the patient's lower limb 25 and mounting the traction components. The vertical slide rail 24, the slide block 21, the hand wheel 1, the nut 2, the lead screw 3, the traction bow 4 and the traction needle 5 are used for traction on the far end of the tibia of the patient. The lead screw 13, the nut 14, the rotating handle 15 and the sleeve 16 are used for adjusting the height of the thigh rest plate 12, so as to realize traction on the far end of the femur. The jacking bolt 6, the side pressure bolt 8, the side pressure plate 9, the fixing bolt 10 and the restraining belt 26 are used for adjusting the posture of the pulled broken bone so as to reduce the broken bone.
The base beam 18 is placed on the operating bed and is adjustable in height by its lower four adjustable legs 17 to accommodate different patients. The shank and the thigh of the patient lean against the shank supporting plate 11 and the thigh backing plate 12 respectively to form a leg bending state, so that the intramedullary nail can be conveniently implanted from a proximal tibia platform or a distal femur platform. The surfaces of the shank supporting plate 11 and the thigh backing plate 12 corresponding to the lower limbs 25 of the patient are made into arc concave surfaces, so that the stability of the lower limbs can be improved, and the operation quality can be ensured. The shank supporting plate 11, the thigh backing plate 12 and the bottom beam 18 form a triangular structure, and the height and the inclination angle of the thigh backing plate 12 are adjustable, so that the operation is more flexible and convenient. The tail end of the bottom beam 18 is provided with a notch, so that the moving range of the screw rod 3 is increased, and the traction direction is convenient to adjust.
When the tibial intramedullary nail implantation operation is carried out, the traction needle 5 and the traction bow 4 are needed to be used for traction on the tibia of a patient, the traction needle 5 can penetrate through the ankle bone of the patient and can also penetrate through the far end of the tibia of the patient, and two ends of the traction needle 5 are respectively connected with two ends of the traction bow 4. Hand wheel 1, screw 2, lead screw 3, elevator locking screw 22, elevator 23 and vertical slide rail 24 constitute the traction mechanism who pulls bow 4, two vertical slide rails 24 are fixed at the tail end of floorbar 18, elevator 23 can be followed vertical slide rail 24 and slided from top to bottom and can be locked by elevator locking screw 22, screw 2 rotates with elevator 23 to be connected, be convenient for adjust lead screw 3's angle, in lead screw 3 screw in screw 2, lead screw 3's one end rotates with the back of the arch of pulling bow 4 to be connected, hand wheel 1 is fixed to the other end. By rotating the hand wheel 1, the traction bow 4 can be moved, and then the far end of the tibia of the patient is dragged through the traction needle 5.
When the femoral intramedullary nail implantation operation is performed, the femur of a patient needs to be pulled, at the moment, the screw rod 13 and the nut 14 are relatively rotated by rotating the rotating handle 15, the screw rod 13 pushes the thigh backup plate 12 to move upwards (the thigh backup plate 12 slides along the inner hole of the sleeve 16), so that the calf of the patient moves upwards, and the traction on the femur is realized.
After the length of the lower limb is recovered by traction, if the fractured bones have dislocation, the fractured bones are reset by the jacking bolts 6, the side pressure bolts 8, the side pressure plates 9, the fixing bolts 10 and the binding belts 26. The binding belt 26 enables the broken bones to be close to the calf support plate 11 or the thigh backup plate 12, the jacking bolts 6 enable the broken bones to be far away from the calf support plate 11 or the thigh backup plate 12, the side pressure bolts 8, the side pressure plates 9 and the fixing bolts 10 apply lateral thrust to the broken bones, and the dislocated broken bones can be reset by comprehensively using the components.
The tibial traction method comprises the following steps:
1. the device is placed on an operating table and is placed at the lower part of a lower limb 25 of a patient, the height of the adjustable supporting leg 17 and the position of the sliding block 21 are adjusted according to the specific condition of the patient, so that the thigh and the calf of the patient lean against the thigh backup plate 12 and the calf supporting plate 11 respectively;
2. Adjusting the lifting block 23 to a proper height and then screwing a locking screw 22 of the lifting block;
3. A traction needle 5 is penetrated through the far end of the ankle bone or the tibia of a patient, and two ends of the traction needle 5 are respectively connected with two ends of a traction bow 4;
4. The hand wheel 1 is operated to rotate the lead screw 3, and the lead screw 3 draws the far end of the tibia to a proper position through the traction bow 4 and the traction needle 5;
5. The proper positions of the calf supporting plate 11 are provided with a jacking bolt 6, a side pressure bolt 8, a side pressure plate 9, a fixing bolt 10 and a binding belt 26, so that the fractured bones are reset;
6. performing intramedullary nail implantation operation.
the femoral traction method is similar to the above method, except that the thigh rest plate 12 is jacked up by rotating the screw rod 13, and the thigh rest plate 12 exerts upward force on the knee of the patient, thereby realizing the traction of the femur.
The device can ensure that the femur or the tibia stably keeps the reset state required by implanting the intramedullary nail and does not occupy the operation space, is favorable for improving the operation quality and the operation efficiency, and is suitable for popularization and application in various medical institutions.
Claims (8)
1. A lower limb traction device for intramedullary nail operation is characterized by comprising a bottom beam (18), a lower leg supporting plate (11), a thigh backup plate (12), a slide block (21), a traction needle (5), a traction bow (4) and a traction mechanism, the sliding block (21) is arranged on an axial slideway on the bottom beam (18) and is provided with a sliding block locking screw (20), the lower leg supporting plate (11) and the thigh supporting plate (12) are hinged into a herringbone shape, the lower end of the thigh supporting plate (12) is rotatably connected with the head end of the bottom beam (18), the lower end of the lower leg supporting plate (11) is rotatably connected with the slide block (21), the thigh and the calf of the patient respectively lean against the upper parts of the thigh supporting plate (12) and the lower leg supporting plate (11), the traction needle (5) passes through the far end of the ankle bone or the tibia of the patient and is connected between the two ends of the traction bow (4), the bow back of the traction bow (4) is connected with the tail end of the bottom beam (18) through a traction mechanism.
2. The lower limb traction device for intramedullary nail surgery is characterized in that the traction mechanism comprises a vertical slide rail (24), an elevating block (23), a nut (2), a lead screw (3) and a hand wheel (1), the vertical slide rail (24) is fixed at the tail end of a bottom beam (18), the elevating block (23) is in sliding connection with the vertical slide rail (24) and provided with an elevating block locking screw (22), the nut (2) is rotatably connected with the elevating block (23), the lead screw (3) is matched with the nut (2) through threads, one end of the lead screw (3) is rotatably connected with the arch back of a traction arch (4), and the other end of the lead screw is fixedly connected with the hand wheel (1).
3. The lower limb traction device for intramedullary nail surgery is characterized in that the lower end of the thigh backup plate (12) is rotatably connected with the head end of the bottom beam (18) through a sleeve (16), the sleeve (16) is sleeved on the lower end of the thigh backup plate (12) and is in sliding connection with the thigh backup plate (12), the lower end of the sleeve (16) is rotatably connected with the head end of the bottom beam (18) through a horizontal rotating shaft perpendicular to the bottom beam (18), a telescopic mechanism is connected between the thigh backup plate (12) and the sleeve (16), the telescopic mechanism comprises a screw rod (13) and a nut (14), the nut (14) is fixed on the sleeve (16), the screw rod (13) is matched with the nut (14) through threads, one end of the screw rod (13) is rotatably connected with the thigh backup plate (12), and the other end of the screw rod is provided with a rotating handle (15).
4. The lower limb traction device for intramedullary nail surgery is characterized by further comprising a broken bone reduction mechanism, wherein the broken bone reduction mechanism comprises a binding belt (26), a jacking bolt (7), a side pressure plate (9), a side pressure bolt (8) and a fixing bolt (10), the binding belt (26) binds the lower limb of a patient on a calf supporting plate (11) or a thigh backing plate (12), the jacking bolt (7) is screwed into the jacking bolt hole (7) of the calf supporting plate (11) or the thigh backing plate (12) and is pressed against the lower part of the lower limb (25) of the patient, the lower end of the side pressure plate (9) is fixed on the side part of the calf supporting plate (11) or the thigh backing plate (12) through the fixing bolt (10), and the side pressure bolt (8) is screwed into a threaded hole in the side pressure plate (9) and is pressed against the side part of the lower limb (25) of the patient.
5. The lower limb traction device for intramedullary nail surgery according to claim 4, wherein a plurality of fixing bolt (10) holes are formed in both sides of the shank supporting plate (11) and the thigh backing plate (12), a plurality of jacking bolt (7) holes are formed in the middle of the shank supporting plate (11) and the thigh backing plate (12), and the fixing bolt (10) holes and the jacking bolt (7) holes are uniformly arranged along the length direction of the shank supporting plate (11) and the thigh backing plate (12).
6. The lower limb traction device for intramedullary nail surgery is characterized in that a notch is formed in the middle of the tail end of the bottom beam (18), two vertical sliding rails (24) are arranged and fixed on two sides of the notch respectively, the lifting block (23) is connected with the two vertical sliding rails (24) in a sliding mode, and the screw nut (2) and the screw rod (3) correspond to the notch in the tail end of the bottom beam (18).
7. the lower limb traction device for intramedullary nail surgery according to claim 6, characterized in that the lower part of the bottom beam (18) is provided with adjustable legs (17).
8. The lower limb traction device for intramedullary nail surgery of claim 7 is characterized in that the surfaces of the shank supporting plate (11) and the thigh rest plate (12) corresponding to the shank and the thigh of the patient are arc-shaped concave surfaces.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832613.4A CN110537964A (en) | 2019-09-04 | 2019-09-04 | Lower limb traction device for intramedullary nail surgery |
| US16/819,264 US11395680B2 (en) | 2019-09-04 | 2020-03-16 | Lower limb traction device for intramedullary nail implantation operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832613.4A CN110537964A (en) | 2019-09-04 | 2019-09-04 | Lower limb traction device for intramedullary nail surgery |
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| Publication Number | Publication Date |
|---|---|
| CN110537964A true CN110537964A (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910832613.4A Pending CN110537964A (en) | 2019-09-04 | 2019-09-04 | Lower limb traction device for intramedullary nail surgery |
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| Country | Link |
|---|---|
| CN (1) | CN110537964A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111297589A (en) * | 2020-02-24 | 2020-06-19 | 倪威武 | Medical instrument for leg rehabilitation of patient with sickbed lying |
| CN111467185A (en) * | 2020-04-23 | 2020-07-31 | 江西省人民医院 | Hemiplegia rehabilitation physiotherapy device of neurosurgery |
| CN112022601A (en) * | 2020-09-29 | 2020-12-04 | 江山市人民医院 | Ankle fracture operation platform with adjustable leg posture |
| CN113101109A (en) * | 2021-05-12 | 2021-07-13 | 河南省胸科医院 | A operation platform for shank fracture operation |
-
2019
- 2019-09-04 CN CN201910832613.4A patent/CN110537964A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111297589A (en) * | 2020-02-24 | 2020-06-19 | 倪威武 | Medical instrument for leg rehabilitation of patient with sickbed lying |
| CN111297589B (en) * | 2020-02-24 | 2021-11-12 | 山东君泰安德医疗科技股份有限公司 | Medical instrument for leg rehabilitation of patient with sickbed lying |
| CN111467185A (en) * | 2020-04-23 | 2020-07-31 | 江西省人民医院 | Hemiplegia rehabilitation physiotherapy device of neurosurgery |
| CN112022601A (en) * | 2020-09-29 | 2020-12-04 | 江山市人民医院 | Ankle fracture operation platform with adjustable leg posture |
| CN113101109A (en) * | 2021-05-12 | 2021-07-13 | 河南省胸科医院 | A operation platform for shank fracture operation |
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