CN103690247B - A kind of femur neck hollow nail implant surgery biplane positioner - Google Patents
A kind of femur neck hollow nail implant surgery biplane positioner Download PDFInfo
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- CN103690247B CN103690247B CN201410012276.1A CN201410012276A CN103690247B CN 103690247 B CN103690247 B CN 103690247B CN 201410012276 A CN201410012276 A CN 201410012276A CN 103690247 B CN103690247 B CN 103690247B
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- slide plate
- moving carriage
- dovetail groove
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- biplane
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Abstract
The present invention discloses a kind of femur neck hollow nail implant surgery biplane positioner, comprise two covers vertically and horizontal mobile mechanism, a set of end effector mechanism and one fixedly mount block.The two vertical travel mechanisms of cover are that have can the support of vertical moving slide board; Being connected by being fixedly connected with block between the two vertical travel mechanisms of cover, realizing fixing with outside installing rack.Two cover horizontal mobile mechanisms are the guide rail having and can move horizontally moving carriage; Be arranged on respectively on two cover vertical travel mechanism middle slide plates.Described end effector mechanism is arranged on the moving carriage in two horizontal mobile mechanisms, comprises and rotates guide table and rotating base; Rotating base is equipped with on two moving carriages, and two ends, support rotating guide table left and right, and be slidably matched with the gathering sill rotating transverse design on guide table front and back sides.Advantage of the present invention is: can realize moving horizontally, vertical lift, horizontally rotates the compound motion with pitch rotation; And positioning precision is high, stable movement.
Description
Technical field
The present invention relates to medical instruments field, specifically, is a kind of femur neck hollow nail implant surgery biplane positioner.
Background technology
Fracture of femoral neck is modal type in Hip Fracture, is mainly in osteoporotic middle-aged and elderly people, the most common clinically, along with improving constantly of aged tendency of population, has the trend increased further.Because neck of femur needs to bear the motion under human body erectility and support function, its therapeutic effect will directly affect patient's quality of life from now on.Therefore, the operative treatment research of fracture of femoral neck has extensively been carried out both at home and abroad.
The main method of current treatment of femoral neck fracture is hollow nail methods of internal fixation, namely utilizes 3 hollow nails, the physiological anatomic architecture original according to patient, by the femoral head of fracture together with femoral shaft partial fixing.Its key technology is exactly the physiological structure accurately identifying individual patients, and hollow nail is implanted to desirable fixed position exactly.Conventional traditional method is by operating theater instruments in range estimation normotopia and position, side x-ray image relative to the angle and distance in surgical object path, and doctor's manual adjustments operating theater instruments makes itself and the coincidence of desirable operation pathway carry out location of operation.The surgical experience of this method heavy dependence doctor and skill, the positioning difficulty of operating theater instruments is large, and in operation process, main dependence doctor manually holds apparatus, and operating theater instruments can produce skew and concussion, thus reduces operation precision, affects surgical quality.
Summary of the invention
The object of the invention is for femur neck hollow nail implant surgery high to doctors experience requirement, operating theater instruments positioning difficulty is large, in operation process, apparatus easily produces the problems such as skew and concussion, the present invention proposes a kind of femur neck hollow nail implant surgery biplane positioner.This device utilizes biplane positioning principle, adopts series parallel structure, can provide and move horizontally, vertical lift, horizontally rotate and pitch rotation four degree of freedom, has structure simple, the advantages such as rigidity is large, easy to adjust.This device is fixed near operation table, the operation pathway that position, positive for computer analysis side x-ray image is planned can be fixed up, and provide support for operating theater instruments and locate holding, improve path accuracy in art, reduce vibration and the skew of operating theater instruments, thus improve degree of accuracy and the safety of femur neck hollow nail implant surgery.
A kind of femur neck hollow nail implant surgery biplane positioner, comprises the two vertical travel mechanisms of cover, two cover horizontal mobile mechanisms, a set of end effector mechanism and a fixed installation block.
Described two cover vertical travel mechanism structures are identical, include support, slide plate, rack and pinion.Wherein, slide plate, by the transmission between rack and pinion, realizes the movement of slide plate on support on vertical direction; Be connected by being fixedly connected with block between the support in the above-mentioned two vertical travel mechanisms of cover.
Described two cover horizontal mobile mechanism structures are identical, be fixedly mounted on the top of vertical travel mechanism middle slide plate, include guide rail, screw rod, nut and moving carriage respectively by screw; Wherein, moving carriage, by the transmission between screw rod and nut, realizes the movement of moving carriage on guide rail in horizontal direction.
Described end effector mechanism is arranged on the moving carriage in two horizontal mobile mechanisms, comprises rotation guide table and two and overlaps rotating base.Two cover rotating bases are U-shaped frame structure, and two sides inwall is designed with guide finger, and bottom is arranged on the moving carriage in two horizontal mobile mechanisms by sliding bearing respectively; Described rotation guide table front and back sides is designed with laterally steering groove; Guide finger on rotating base two sides embeds in the gathering sill on rotation guide table front and back sides respectively, realizes being slidably matched.
By said structure, regulate two vertical travel mechanism middle slide plates to move up and down equidistant, realize the lifting moving of rotating guide table; And move non-equally by adjustment two vertical travel mechanism middle slide plates, the pitch rotation of rotating guide table can be realized; And move forward and backward equidistant by moving carriage in adjustment two horizontal mobile mechanisms, the horizontal shifting rotating guide table can be realized; And move non-equally by moving carriage in adjustment two horizontal mobile mechanisms, can realize rotating horizontally rotating of guide table; Finally make rotation guide table have to move horizontally, vertical lift, to horizontally rotate and pitch rotation four degree of freedom.Carrying out in neck of femur intramedullary pin Operation process, the medical equipments such as the drillstock of medical electric drill can be fixed on the rotation guide table of end effector mechanism by doctor, by operating the movement of the slide plate in two vertical travel mechanisms and the moving carriage in horizontal mobile mechanism, the attitude of rotating guide table is adjusted, realizes the location of the medical equipments such as medical electric drill.
The invention has the advantages that:
1, femur neck hollow nail implant surgery biplane positioner of the present invention can realize moving horizontally, and vertical lift, horizontally rotates the compound motion with pitch rotation;
2, femur neck hollow nail implant surgery biplane positioner of the present invention adopts series parallel structure, and small volume structure is compact, and work space is large, and bearing capacity is large;
3, femur neck hollow nail implant surgery biplane positioner positioning precision of the present invention is high, stable movement, and easily controls.
Accompanying drawing explanation
Fig. 1 is femur neck hollow nail implant surgery biplane positioner overall structure schematic diagram of the present invention;
Fig. 2 is vertical travel mechanism structural representation in femur neck hollow nail implant surgery biplane positioner of the present invention;
Fig. 3 is vertical travel mechanism middle rack and gear matching relationship schematic diagram;
Fig. 4 is horizontal mobile mechanism structural representation in femur neck hollow nail implant surgery biplane positioner of the present invention;
Fig. 5 is screw rod and nut screw connection relation schematic diagram in horizontal mobile mechanism;
Fig. 6 is horizontal mobile mechanism middle carriage positioning sliding block installation site schematic diagram;
Fig. 7 is end effector mechanism structural representation in femur neck hollow nail implant surgery biplane positioner of the present invention;
Fig. 8 is rotary base structure schematic diagram in end effector mechanism.
In figure:
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Femur neck hollow nail implant surgery biplane positioner of the present invention, as shown in Figure 1, comprises the two vertical travel mechanisms of cover 1, two and overlaps horizontal mobile mechanism 2, a set of end effector mechanism 3 and a fixed installation block 4;
Described two cover vertical travel mechanism 1 structures are identical, include support 101, slide plate 102, tooth bar 103, gear 104 and vertical knob 105, as shown in Figure 2 and Figure 3.Wherein, support 101 vertically offers slide plate location dovetail groove 106, and axially offer gear detent 107 along slide plate location dovetail groove 106 on dovetail groove 106 bottom surface, slide plate location.Slide plate 102 is installed with the slide plate positioning sliding block 108 that dovetail groove 106 cross-sections match located by cross section and slide plate, and slide plate positioning sliding block 108 be axially fixed with tooth bar 103 by screw; Above-mentioned slide plate positioning sliding block 108 is arranged in the dovetail groove 106 of slide plate location, slide plate 102 and slide plate locate to coordinate between dovetail groove 106 and locates, and makes slide plate positioning sliding block 108 can locate vertical slip in dovetail groove 106 at slide plate.Described gear 103 is arranged in gear detent 107, engages with between tooth bar 103; Middle rack of the present invention and gear adopt helical rack and helical gear respectively.Gear 104 has the bar handle 109 of coaxial design, and bar handle 109, through the bar handle positioning sleeve 110 be fixed on support 101 sidewall, is supported by the overall structure of bar handle positioning sleeve to bar handle and gear; And bar handle is also coaxially connected by screw and vertical adjusting knob 111.Thus, by turn adjusting knob 111, make to realize transmission between gear 104 and tooth bar 103, and then realize slide plate 102 vertical direction and move up and down.Be connected by being fixedly connected with block 4 between the support 101 in the above-mentioned two vertical travel mechanisms 1 of cover; Thus, realize the connection location between the two vertical travel mechanisms 1 of cover, the two vertical travel mechanisms 1 of cover are symmetrically set; And be fixedly connected with block 4 and be also used for being connected with passive arm or fixed mount, realize the fixing of femur neck hollow nail implant surgery biplane positioner of the present invention.
Described two cover horizontal mobile mechanism 2 structures are identical, the top of vertical travel mechanism 1 middle slide plate 102 is fixedly mounted on respectively by screw, and be symmetrically set, include guide rail 201, screw rod 202, nut 203, moving carriage 204 and horizontal adjustment knob 205, as shown in Fig. 4, Fig. 5, Fig. 6.Wherein, guide rail 201 is horizontally disposed with, and rear portion is fixed by screws in slide plate 102 top in vertical travel mechanism 1; Guide rail 201 axially offers planker location dovetail groove 206 along guide rail 201, and axially offer screw rod detent 207 along planker location dovetail groove 206 on dovetail groove 206 bottom surface, planker location.The threaded portion of screw rod 202 is axially disposed within screw rod detent 207 along screw rod detent 207; The bar portion of screw rod 202, through screw rod positioning sleeve 208 fixing on guide rail 201 front end face, supported, and bar portion is also coaxially connected by screw and horizontal adjustment knob 205 by screw rod positioning sleeve to screw rod.Nut 203 threaded engagement is arranged on screw rod 202, makes to realize feed screw nut between nut 203 with screw rod 202 and coordinates.Described moving carriage 204 lower surface is installed with the planker positioning sliding block 209 that dovetail groove 206 cross-sections match located by cross section and planker, planker positioning sliding block 209 is arranged in the dovetail groove 206 of planker location, realizes moving carriage 204 and locates coordinating between dovetail groove 206 with planker and locate; And planker positioning sliding block 209 is also fixedly connected with nut 203, thus, by turn horizontal adjustment knob 205, screw rod 202 is rotated, drive nut 203 along screw rod 202 axially-movable, and then planker positioning sliding block 209 is axially moved along planker location dovetail groove 206, realize moving forward and backward in moving carriage 204 horizontal direction.
Described end effector mechanism 3 is arranged on the moving carriage 204 in two horizontal mobile mechanisms 2, comprises rotation guide table 301 and two and overlaps rotating base 302, as shown in Figure 7.Two cover rotating bases 302 are arranged on the moving carriage 204 in two horizontal mobile mechanisms 2 respectively by sliding bearing; Wherein, sliding bearing is fixed in the installing hole that moving carriage 204 upper surface offers by interference fit.Rotating base 302 is U-shaped frame structure, and as shown in Figure 8, underrun connecting axle is connected with sliding bearing, realizes being rotatably assorted; And be provided with cushion block between rotating base 302 bottom surface and moving carriage 204, reduce the frictional resistance in rotating base 302 rotation and between moving carriage 204.Above-mentioned rotating base 302 two sides symmetric position is designed with guide finger 303, be used for realizing rotating the support of guide table 301 and pose adjustment, concrete mode is: rotate guide table 301 and have rectangular cross section, front and back sides is designed with laterally steering groove 304; Thus the guide finger 303 on rotating base 302 two sides is embedded respectively in the gathering sill 304 on rotation guide table 301 front and back sides, and realize being slidably matched.Thus, by regulating two vertical travel mechanism 1 middle slide plates 102 to move up and down equidistant, realize the lifting moving of rotating guide table 301; And move non-equally by adjustment two vertical travel mechanism 1 middle slide plate 102, the pitch rotation of rotating guide table 301 can be realized; And move forward and backward equidistant by moving carriage 204 in adjustment two horizontal mobile mechanisms 2, the horizontal shifting rotating guide table 301 can be realized; And move non-equally by moving carriage 204 in adjustment two horizontal mobile mechanisms 2, can realize rotating horizontally rotating of guide table 301; Finally make rotation guide table 301 have to move horizontally, vertical lift, to horizontally rotate and pitch rotation four degree of freedom.The rotating manner of above-mentioned rotation guide table 301, specific implementation process is: make two cover horizontal mobile mechanisms 2 lay respectively at left and right directions, when two cover horizontal mobile mechanisms 2 are highly equal, continue to control left horizontal mobile mechanism 2 to rise or decline, rotating base 302 medial wall guide finger 303 in left horizontal mobile mechanism 2 on moving carriage 204 is slided along gathering sill 304, and the left end simultaneously promoting to rotate guide table 301 lifts or falls; Otherwise, continue to control right horizontal mobile mechanism 2 to rise or decline, make the rotating base 302 medial wall guide finger 303 in right horizontal mobile mechanism 2 on moving carriage 204 slide along gathering sill 304 thus, the right-hand member simultaneously promoting to rotate guide table 301 lifts or falls.And when two cover horizontal mobile mechanism 2 front and back positions are equal, continue to control left horizontal mobile mechanism 2 to move forward or backward, rotating base 302 medial wall guide finger 303 in left horizontal mobile mechanism 2 on moving carriage 204 is slided along gathering sill 304, and the left end simultaneously promoting to rotate guide table 301 advances or retreats; Otherwise, control right horizontal mobile mechanism 2 to move forward or backward, rotating base 302 medial wall guide finger 303 in right horizontal mobile mechanism 2 on moving carriage 204 is slided along gathering sill 304, and the right-hand member simultaneously promoting to rotate guide table 301 advances or retreats.Thus, carrying out in neck of femur intramedullary pin Operation process, the medical equipments such as the drillstock of medical electric drill can be fixed on the rotation guide table 301 of end effector mechanism 3 by doctor, by operating the movement of the slide plate 102 in two vertical travel mechanisms 1 and the moving carriage 204 in horizontal mobile mechanism 2, the attitude of rotating guide table 301 is adjusted, realizes the location of the medical equipments such as medical electric drill.
Also on the bottom surface and side of two rotating bases 302, level angle scale 305 and vertical angles scale 306 is all installed with in the present invention, level angle scale 305 on the rotating base 302 of then support rotating guide table 301 left end and right-hand member be used for respectively measuring rotate guide table 301 right-hand member and left end horizontally rotate angle, realize the accurate control to rotating guide table 301 attitude regulation; Equally, the vertical angles scale 306 on the rotating base 302 of support rotating guide table 301 left end and right-hand member is used for measuring the luffing angle rotating guide table 301 right-hand member and left end respectively.
Claims (6)
1. a femur neck hollow nail implant surgery biplane positioner, comprises the two vertical travel mechanisms of cover, two cover horizontal mobile mechanisms, a set of end effector mechanism and one is fixedly connected with block;
Described two cover vertical travel mechanism structures are identical, include support, slide plate, rack and pinion; Wherein, slide plate, by the transmission between rack and pinion, realizes the movement of slide plate on support on vertical direction; Be connected by being fixedly connected with block between the above-mentioned two vertical travel mechanisms of cover;
Described two cover horizontal mobile mechanism structures are identical, are fixedly mounted on respectively on vertical travel mechanism middle slide plate, include guide rail, screw rod, nut, moving carriage; Wherein, moving carriage, by the transmission between screw rod and nut, realizes the movement of moving carriage on guide rail in horizontal direction;
Described end effector mechanism is arranged on the moving carriage in two horizontal mobile mechanisms, comprises rotation guide table and two and overlaps rotating base; Two cover rotating bases are U-shaped frame structure, and two sides inwall is designed with guide finger, and bottom is arranged on the moving carriage in two horizontal mobile mechanisms by sliding bearing respectively; Described rotation guide table front and back sides is designed with laterally steering groove; Guide finger on rotating base two sides embeds in the gathering sill on rotation guide table front and back sides respectively, realizes being slidably matched.
2. a kind of femur neck hollow nail implant surgery biplane positioner as claimed in claim 1, is characterized in that: the movement between described slide plate and support on vertical direction, realizes especially by following manner: described support vertically offers slide plate location dovetail groove; And axially gear detent is offered along slide plate location dovetail groove on dovetail groove bottom surface, slide plate location; Slide plate is installed with slide plate positioning sliding block, slide plate positioning sliding block be axially fixed with tooth bar by screw; Above-mentioned slide plate positioning sliding block is arranged in the dovetail groove of slide plate location, realizes slide plate and slide plate and locates to coordinate between dovetail groove and locate; Described gear is arranged in gear detent, engages with between tooth bar; Gear has the bar handle of coaxial design, and bar handle, through after the bar handle positioning sleeve be fixed on rack side wall, is coaxially fixed with vertical adjusting knob.
3. a kind of femur neck hollow nail implant surgery biplane positioner as claimed in claim 1, it is characterized in that: the movement of described moving carriage on guide rail in horizontal direction, realize especially by following manner: along lead rail axis to offering planker location dovetail groove on guide rail, and axially offer screw rod detent along planker location dovetail groove on dovetail groove bottom surface, planker location; Screw flight part is axially disposed within screw rod detent along screw rod detent; The bar portion of screw rod, through after screw rod positioning sleeve fixing on guide rail front end face, is coaxially fixed with horizontal adjustment knob; Nut thread cooperation is arranged on screw rod, makes to realize feed screw nut between nut with screw rod and coordinates; Described moving carriage lower surface is installed with planker positioning sliding block, and planker positioning sliding block is arranged in the dovetail groove of planker location, realizes moving carriage and locates coordinating between dovetail groove with planker and locate; And planker positioning sliding block is also fixedly connected with nut.
4. a kind of femur neck hollow nail implant surgery biplane positioner as claimed in claim 1, is characterized in that: described rack and pinion adopts helical rack and helical gear respectively.
5. a kind of femur neck hollow nail implant surgery biplane positioner as claimed in claim 1, is characterized in that: the bottom surface of described two rotating bases all and between moving carriage is provided with cushion block.
6. a kind of femur neck hollow nail implant surgery biplane positioner as claimed in claim 1, is characterized in that: the bottom surface of described two rotating bases and side are installed with level angle scale and vertical angles scale respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012276.1A CN103690247B (en) | 2014-01-10 | 2014-01-10 | A kind of femur neck hollow nail implant surgery biplane positioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012276.1A CN103690247B (en) | 2014-01-10 | 2014-01-10 | A kind of femur neck hollow nail implant surgery biplane positioner |
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| Publication Number | Publication Date |
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| CN103690247A CN103690247A (en) | 2014-04-02 |
| CN103690247B true CN103690247B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410012276.1A Expired - Fee Related CN103690247B (en) | 2014-01-10 | 2014-01-10 | A kind of femur neck hollow nail implant surgery biplane positioner |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107550552B (en) * | 2017-09-29 | 2024-05-24 | 宁波市第六医院 | Calcaneus fixed bolster |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5308352A (en) * | 1989-11-17 | 1994-05-03 | Koutrouvelis Panos G | Stereotactic device |
| CN202313574U (en) * | 2011-11-22 | 2012-07-11 | 王光明 | Dimensional coordinate location drilling guide apparatus |
| CN102670309A (en) * | 2012-06-12 | 2012-09-19 | 北京航空航天大学 | Route adjusting device for fracture surgery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080086137A1 (en) * | 2006-10-04 | 2008-04-10 | Robert Probe | Fixation of femoral neck fractures |
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2014
- 2014-01-10 CN CN201410012276.1A patent/CN103690247B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5308352A (en) * | 1989-11-17 | 1994-05-03 | Koutrouvelis Panos G | Stereotactic device |
| CN202313574U (en) * | 2011-11-22 | 2012-07-11 | 王光明 | Dimensional coordinate location drilling guide apparatus |
| CN102670309A (en) * | 2012-06-12 | 2012-09-19 | 北京航空航天大学 | Route adjusting device for fracture surgery |
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| CN103690247A (en) | 2014-04-02 |
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