CN102429710B - Bone grafting instrument and application method thereof - Google Patents
Bone grafting instrument and application method thereof Download PDFInfo
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- CN102429710B CN102429710B CN 201110265338 CN201110265338A CN102429710B CN 102429710 B CN102429710 B CN 102429710B CN 201110265338 CN201110265338 CN 201110265338 CN 201110265338 A CN201110265338 A CN 201110265338A CN 102429710 B CN102429710 B CN 102429710B
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- diaphysis
- pressure rod
- bone grafting
- support bar
- holding
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Abstract
The invention provides a bone grafting instrument and an application method thereof. The bone grafting instrument comprises a bone holding body, a slip cover, a pressurizing rod and a support rod, wherein the bone holding body has a cylinder structure with longitudinal length; the bone holding body and the slip cover are combined into an enclosed hollow cylinder structure; the pressurizing rod and the support rod can be combined into a tightly contacted cylinder structure which is accommodated in the enclosed hollow cylinder structure formed by the bone holding body and the slip cover; and the pressurizing rod can be inserted into a groove of the bone holding body through both sides of the support rod in the bone grafting process, so that bone materials can be pushed in the charging process, and lateral bone grafting can be performed in the bone grafting process. The invention further provides an application method of the bone grafting instrument for lateral bone grafting. The bone grafting instrument can be applied to positive bone grafting.
Description
Technical field
The present invention relates to orthopedic medical device, particularly the using method of a kind of bone grafting device and this bone grafting device.
Background technology
Bone grafting device in the market mostly adopts the mode of injection that osseous tunnel is carried out the filled type bone grafting, but for the damaged osseous tunnel of some sidewalls, in the revision after the Healing in Anterior Cruciate Ligament Reconstruction failure, when taking out interference screw, because the screw thread of interference screw causes osseous tunnel extended and often follow the bone of osseous tunnel wall damaged when taking out inevitably, need carry out bone grafting to femur or tibial side, before the Healing in Anterior Cruciate Ligament Reconstruction of carrying out the second phase, because at present still not at the damaged apparatus that carries out bone grafting of osseous tunnel sidewall, therefore at first carry out the operation first time usually, adopting injection system to carry out the full packing bone grafting fills up bone passage (comprising for interference screw fixing hole and because the expansion space of the osseous tunnel that the interference screw taking-up causes) fully, after treating the complete ankylose of sclerotin, carrying out second time operation again changes the position and sets up new tunnel, and be fixed in new tunnel with interference screw, make anterior cruciate ligament and femur or tibia fixing again.Such second operation can strengthen patient's misery, prolongs the course of disease, and increases the infected risk in affected part.
Summary of the invention
The invention provides the using method of a kind of bone grafting device and this bone grafting device, there is damaged situation can carry out sidewall pressurization bone grafting at osseous tunnel, osseous tunnel is repaired, this bone grafting device is simple to operate, can shorten doctor's operating time, and can under endoscope, carry out Minimally Invasive Surgery, greatly reduce patient's misery, and reduce the risk that infect in the affected part.Bone grafting device of the present invention is fit to the bone grafting operation that any osseous tunnel needs are repaired.
A kind of bone grafting device comprises and holds diaphysis, slip lid, pressure rod and support bar; Described diaphysis, slip lid, pressure rod and the support bar held is the column structure with longitudinal length, describedly hold diaphysis and described slip lid side separately includes the outer surface that is provided with mating surface longitudinal fluting, that extend longitudinally and joins with two vertical outer side edges of described mating surface, the mating surface of the described mating surface of holding diaphysis and described slip lid is suitable, the back is described holds the outer surface that diaphysis and described slip lid outer surface separately constitute complete combination cylinder so that two mating surfaces fasten, and groove combination separately constitutes complete vertical cavity; Described groove top of holding diaphysis has the enclosed construction of the described vertical cavity accent of sealing, and described enclosed construction is connected, is articulated and connected or removably connect with described groove one of holding diaphysis; Described pressure rod and described support bar are mutually superimposed and be placed in described vertical cavity; The described diaphysis of holding comprises that also the described slip lid of restriction and/or pressure rod can only be along the described position limiting structures that vertically moves of holding the groove of diaphysis.
The side of described pressure rod and described support bar can comprise the superposed surfaces that longitudinally both is combined into one respectively, reaches the lateral surface that joins with two vertical outer side edges of described superposed surfaces; The lateral surface of described pressure rod matches with the shape of at least part of inwall of described vertical cavity, and the superposed surfaces of described support bar matches with the superposed surfaces of described pressure rod, matches with at least part of inwall of described vertical cavity; And/or two determined planes of vertical outer side edges of described superposed surfaces overlap with described mating surface, parallel or approximate parallel.
The inwall of described vertical cavity can be cambered surface, the superposed surfaces of described support bar and the lateral surface of described pressure rod can be respectively arcwall face, and the arc of the arc of the superposed surfaces of described support bar and the lateral surface of described pressure rod and the arc of described vertical cavity inner wall are suitable.
The length of described pressure rod and/or support bar can equal or be longer than described groove length of holding diaphysis.
The outer surface of described combination cylinder can be the circular arc cylinder.
Described pressure rod rear end can be provided with pull-out elements,
Described slip lid can comprise the assembly of uncapping.
Described pressure rod top can have is convenient to insert the described ramp structure of holding diaphysis.
Described position limiting structure can be for being provided with the column structure of a through hole, and described pressure rod and support bar pass described through hole and enter in described vertical cavity; The Breadth Maximum of the identical or described through hole of the Breadth Maximum that the Breadth Maximum of described through hole and described pressure rod and described support bar are superimposed together is more bigger than the Breadth Maximum that described pressure rod and described support bar are superimposed together.
Described through-hole side wall can be provided with cannelure, be provided with stopping means in the described cannelure, described stopping means comprises the big screens of the position of the described slip lid of restriction and described pressure rod, have on the described slip lid with described big screens and engage spacing spacing hole, described pressure rod is provided with for engage spacing a plurality of spacing little groove with described big screens;
Described slip lid and described pressure rod can have scale, and the scale of described slip lid and described pressure rod is corresponding one by one.
Described stopping means can also comprise limiting the little screens of the position of support bar, and the little groove corresponding with the lesser calorie position arranged on the described support bar.
The described enclosed construction of holding the diaphysis front end can be demountable structure, or comprises detachable member;
The outside of described enclosed construction can be spherical crown.
The described diaphysis of holding can be two-stage structure, is respectively leading portion and back segment, and described leading portion comprises the described groove of holding diaphysis; Described back segment comprises tubular structure, and is connected with described leading portion one; Being connected to continuous the connection or smooth connection of the rear end of the inner chamber of described tubular structure and the described groove of holding diaphysis; Described slip lid vertically passes the described back segment of holding diaphysis and is combined together with the described leading portion of holding diaphysis and forms vertical cavity.
Described tubular structure can be provided with ledge structure at the end outer wall near described groove one side.
Described position limiting structure can be arranged within the described tubular structure.
Described diaphysis, slip lid, pressure rod and the support bar held can be made by medical metal or nontoxic plastic material.
Technique effect of the present invention
A kind of bone grafting device of technical scheme of the present invention, can side direction the pressurization bone grafting, the osseous tunnel that oppose side wall is damaged is repaired, bone grafting is even, bone grafting is effective, and has shortened operating time, reduces patient's slight illness.Describedly hold diaphysis and slip lid form fit, combine closely, make that bone material is not easy to reveal in airtight container.And described vertical cavity can be in order to hold support bar and pressure rod.Described bone grafting device is simple in structure, compact, easy to operate, makes this bone grafting device be applicable to Minimally Invasive Surgery, can operate under endoscope, has reduced the patient suffering.
The pressure rod of the further scheme of the present invention, the form fit of support bar, combine closely, be suitable for the bone grafting that pressurizes.And described vertical cavity can cooperate support bar and pressure rod closely in order to hold.
Inwall and the described superposed surfaces of the vertical cavity of the further scheme of the present invention are arcwall face, and on the one hand processing has easily reduced processing cost, and on the other hand, the inwall of arc and superposed surfaces rub less in contact process, make flexible operation and not fragile.
The further scheme of the present invention can be longer than described length part of holding the diaphysis groove with pressure rod and/or support bar described pressure rod and/or support bar are pulled out, and has saved the inconvenience of pulling out pressure rod and/or support bar with other instrument.
The further scheme of the present invention is described holds diaphysis and slip lid is combined as the circular arc cylinder with vertical cavity, and circular arc cylindrical structure smooth outer surface when described bone grafting device enters osseous tunnel, can not cause new wearing and tearing to the osseous tunnel edge.
The pull-out elements of the further scheme of the present invention is convenient to pull out pressure rod, the assembly of uncapping is convenient to open slip lid, and can not need to use external tool.
The further scheme of the present invention has ramp structure on the top of pressure rod, is convenient to pressure rod and inserts the bone grafting device from the both sides of support bar respectively in the different phase of bone grafting.
The further scheme of the present invention provides a kind of concrete position limiting structure, can limit pressure rod and make it can only vertically moving along described vertical cavity.
The stopping means of the further scheme of the present invention carries out spacing to described bone grafting device by the engaging mode, be convenient to processing, and is safe and reliable, low cost of manufacture.Can make the operation of described bone grafting device more accurate, quantitatively bone grafting.The slip lid of the further scheme of the present invention has scale, has guaranteed accuracy when making described bone grafting device convenient to operation.
Have little groove on the further scheme support bar of the present invention, little screens is carried out spacing to support bar, when preventing that pressure rod from pulling out support bar is taken out of, makes the more convenient to operate of described bone grafting device.
The enclosed construction of the further scheme of the present invention is detachable, or comprises detachable member, can be used for the forward bone grafting with described bone grafting device as injection bone grafting device, has increased forward bone grafting function again on the function of the original side direction pressurization of described bone grafting device bone grafting.
The further scheme of the present invention has connected tubular structure outside described circular arc cylinder, be applicable to the operation of articular cavity, when the described leading portion of holding diaphysis enters osseous tunnel, make described tubular structure enter location in the articular cavity, can not cause new wearing and tearing to the articular cavity edge.And the rear end of tubular structure to holding the carrier that diaphysis provides increases other possible miscellaneous function, makes the function of holding diaphysis further to expand under the situation that does not hinder slip lid to enter.
The further scheme of the present invention is arranged on the operation that ledge structure on the tubular structure goes for having articular cavity, in this class operation the bone grafting device is located in articular cavity, and can not increase new wearing and tearing to the articular cavity edge.
The further scheme of the present invention is arranged at position limiting structure on the tubular structure, is convenient to limit the moving direction of slip lid.
The further scheme of the present invention is selected medical metal or nontoxic plastic material for use, makes described bone grafting utensil that certain intensity and toughness be arranged.
The further scheme of the present invention provides a kind of diaphysis of holding for described bone grafting device, can become described bone grafting device with other unit construction, is convenient to split production.
The further scheme of the present invention provides a kind of slip lid for described bone grafting device, can become described bone grafting device with other unit construction, is convenient to split production.
The further scheme of the present invention provides a kind of pressure rod for described bone grafting device, can become described bone grafting device with other unit construction, is convenient to split production.
The further scheme of the present invention provides a kind of support bar for described bone grafting device, can become described bone grafting device with other unit construction, is convenient to split production.
The further scheme of the present invention provides the using method of above-mentioned bone grafting device, introduced and used above-mentioned bone grafting device to carry out the method for side direction bone grafting, on the one hand, under the situation of the osseous tunnel that the original operation of reservation has been got through, edge to former osseous tunnel is repaired, bone grafting is even, bone grafting is effective, and has shortened operating time, reduces patient's slight illness, on the other hand, make that the bone grafting device is simple in structure, easy to operate, make this bone grafting device be applicable to Minimally Invasive Surgery, can under endoscope, operate, reduce the patient suffering.
Description of drawings
Fig. 1 is the exploded view of the bone grafting device of a specific embodiment of the present invention.
Fig. 2 a is the cross-sectional view of holding diaphysis of a specific embodiment of the present invention.
Fig. 2 b is the cross-sectional view of holding diaphysis front end and slip lid assembly of a specific embodiment of the present invention.
Fig. 2 c is the cross-sectional view of holding diaphysis rear end and slip lid assembly of a specific embodiment of the present invention.
Fig. 2 d is the cross-sectional view of holding diaphysis rear end and slip lid assembly of a specific embodiment of the present invention.
Fig. 3 a is the cross-sectional view of the bone grafting device of a specific embodiment of the present invention.
Fig. 3 b is the cross-sectional view of the bone grafting device of a specific embodiment of the present invention.
Fig. 3 c is the cross-sectional view of the bone grafting device of a specific embodiment of the present invention.
Fig. 3 d is the cross-sectional view of the bone grafting device of a specific embodiment of the present invention.
Fig. 3 e is the cross-sectional view of the bone grafting device of a specific embodiment of the present invention.
Fig. 3 f is the cross-sectional view of the bone grafting device of a specific embodiment of the present invention.
Fig. 4 is the sketch map of the bone grafting device of a specific embodiment of the present invention.
Fig. 5 is the cross-sectional view of the tubular structure of holding diaphysis of a specific embodiment of the present invention.
Fig. 6 is the stopping means of a specific embodiment of the present invention.
Each label lists as follows among the figure:
1-holds diaphysis, and 2-slip lid, 3-are held the groove of diaphysis, the groove of 4-slip lid, 5-holds the position limiting structure of diaphysis, the 6-assembly of uncapping, 7-support bar, the 8-pressure rod, the 9-tubular structure, 10-controls structure, 11-holds the enclosed construction of diaphysis, 12-pull-out elements, 13-button, the vertical cavity of 14-, 15-superposed surfaces, 16-mating surface, the 17-outer surface, the lateral surface of 18-support bar, the lateral surface of 19-pressure rod, 20-ramp structure, 21-are held the leading portion of diaphysis, and 22-holds the back segment of diaphysis, 23-spring, 24-are held the diaphysis end, the big screens of 25-, the little screens of 26-, 27-spacing hole, the little groove on the 28-support bar, the 29-ledge structure, the limited impression on the 30-pressure rod, 31-gag lever post.
The specific embodiment
The present invention the present invention is further explained below in conjunction with the drawings and specific embodiments for better explaining.
Fig. 1 is the exploded view of a specific embodiment of the present invention.Fig. 2 a is the cross-sectional view of holding diaphysis of a specific embodiment; Fig. 2 b to Fig. 2 d is the cross-sectional view after the combination of diaphysis and slip lid held of a plurality of embodiments.As shown in the figure, a kind of bone grafting device comprises and holds diaphysis 1, slip lid 2, pressure rod 8 and support bar 7.Described diaphysis 1, slip lid 2, pressure rod 8 and the support bar 7 held is the column structure with longitudinal length, though describedly hold the outer surface 17 that diaphysis 1 and described slip lid 2 side separately include combination cylinder among the outer surface 17(figure that is provided with mating surface 16 longitudinal fluting 3 and 4, that extend longitudinally and joins with 16 two vertical outer side edges of described mating surface and be the circular arc cylinder, but described outer surface can also be other shape, such as the cylinder of faceted pebble and seamed edge composition).The described mating surface 16(of diaphysis 1 that holds is shown in Fig. 2 a) with as described in the mating surface 16 of slip lid 2 adaptive mutually, the back is described holds outer surface, the groove separately 3 and 4 that diaphysis 1 and described slip lid 2 outer surface 17 separately constitute complete combination cylinder and constitutes complete vertical cavity 14 so that two mating surfaces 16 fasten, shown in Fig. 2 b, Fig. 2 c, prevented the leakage of bone material in the bone grafting process.The cross section of described vertical cavity 14, namely hold the cross section of the assembly of diaphysis 1 and slip lid 2, can be circular (shown in Fig. 2 b), oval (preceding two kinds of situations be as described in the inwall of vertical cavity 14 are cambered surfaces) or rectangle (shown in Fig. 3 c), it can certainly be other qualified figure, such as the closed figure of being formed by two relative straight flanges and two relative circular arcs (in this case, at least a portion inwall of described vertical cavity 14 is cambered surfaces).
Described top of holding the groove 3 of diaphysis has the enclosed construction 11 of the described vertical cavity of sealing, as shown in Figure 1.The lateral dimension of described enclosed construction 11 can be consistent with the lateral dimension of described outer surface, can certainly be inconsistent.The described enclosed construction 11 of holding the diaphysis front end can be to be that one is connected with the described front end of holding the groove 3 of diaphysis, also can be to removably connect, and can certainly be to be articulated and connected.Described removably connecting both can refer to that described enclosed construction 11 is demountable structures, can refer to that also described enclosed construction 11 comprises detachable member.Under the situation as shown in Figure 1, namely enclosed construction 11 and the groove 3 of holding diaphysis are that one is connected or enclosed construction 11 when being installed in the front end of the described groove 3 of holding diaphysis, and described bone grafting device can be used for the side direction bone grafting; And if enclosed construction 11 is demountable structures, then dismountable enclosed construction 11 keeps closing of slip lid in the bone grafting process when being disassembled, and then can be used for the forward bone grafting with described bone grafting device as injection bone grafting device.Therefore, enclosed construction 11 is configured to demountable structure, can increase forward bone grafting function on the function of the original side direction bone grafting of described bone grafting device again.Certain described enclosed construction also can have detachable member, and its effect is the same with dismountable enclosed construction.The outside of described enclosed construction 11 can be the spherical crown with slick and sly surface, such as the hemispherical head structure, also can be to hold other shape that diaphysis 1 front end shape adapts with described, such as if the front end cross section of holding diaphysis 1 for oval, then described enclosed construction 11 should be with described hold the non-circular cross-section one of diaphysis front end or be installed together, have a structure that seamlessly transits.Described enclosed construction 11 can have the boss that stretches into described groove 3 directions with described front end joint of holding the groove 3 of diaphysis, described boss can be cylinder or cuboid, to be complementary with the groove 4 of slip lid, to support described slip lid 2, described boss can with enclosed construction 11 one, also can be dismountable.Described boss make slip lid with hold diaphysis more firm sealing arranged, further prevent the leakage of bone material.
The described diaphysis 1 of holding comprises that the described slip lid 2 of restriction and/or pressure rod 8 can only be along the described position limiting structures 5 of holding the vertically moving of groove 3 of diaphysis and can not moving and rotate arbitrarily, as shown in Figure 1 on three-dimensional; The sectional view of an one embodiment is shown in Fig. 2 a.Certainly the described diaphysis 1 of holding can have and only limits pressure rod 8 and hold the position limiting structure 5 that diaphysis groove 3 vertically moves along described, such as shown in Fig. 3 f by holding diaphysis along passing slip lid 2 respectively perpendicular to vertical cavity 14 directions and holding diaphysis groove 3 with the gag lever post 31 that moves of cavity direction longitudinally of pressure rod 8 as described in the direct control.As an embodiment of position limiting structure 5 restriction slip lids 2, described position limiting structure 5 can be the column structure that is provided with a through hole, makes described pressure rod 8 and support bar 7 pass described through hole and enters in described vertical cavity 14; The Breadth Maximum of described through hole is identical or bigger with the Breadth Maximum that described pressure rod 8 and described support bar 7 are superimposed together, shown in Fig. 3 a, Fig. 3 b, to guarantee that described pressure rod 8 and support bar 7 can pass described through hole after superimposed, make pressure rod 8 have face to contact with described through hole at least in part with the superimposed body of support bar 7, thereby guarantee that pressure rod is limited in vertically moving along the groove 3 of holding diaphysis.Preferably, described through hole and described vertical cavity 14 are one connectivity structures, and namely in Fig. 3 a to Fig. 3 c, through hole is identical with the cross section of vertical cavity 14.Certainly, through hole also can be that shape, position or the size with vertical cavity 14 is different, as long as can make pressure rod 8 and support bar 7 superimposed backs by described through hole and arrive described vertical cavity 14.Certainly position limiting structure not only can be the tubular structure shown in Fig. 2 c, can also be the tubular structure column structure of the band gap slot shown in Fig. 2 d.Certain described position limiting structure also can be the position limiting structure that limits slip lid 2 and pressure rod 8 cavity direction motion longitudinally simultaneously.
The described end of holding diaphysis 1 can also comprise be used to hold or control described hold diaphysis 1 control structure 10.It should be noted that and describedly control that structure 10 not necessarily specially arranges, can come double doing to control structure 10 with the described structure of holding the position limiting structure 5 of diaphysis 1 or having other function.
Described slip lid 2 can comprise the assembly 6 of uncapping, and in order to slip lid 2 is pulled out the described diaphysis 1 of holding, can certainly not have the special assembly of uncapping, but by external tool, and such as clip, or the gravity of slip lid 2 self is opened slip lid 2.The described assembly 6 of uncapping can be handle as shown in Figure 1, also can be that braking member is such as the mechanical mechanism of being made up of button, spring, also can only be that slip lid 2 cavity 14 directions prolongation longitudinally exceeds described part of holding outside diaphysis 1 rear end, as long as the structure that slip lid can be opened all should be thought the assembly of uncapping of the present invention.
Pressure rod 8 and support bar 7 is superimposed and be placed in described vertical cavity 14 mutually.Fig. 3 a to Fig. 3 e is the cross-sectional view of assembly drawing that has comprised the bone grafting device of described pressure rod 8 and support bar 7.The length of described pressure rod 8 and/or support bar 7 can equal or be longer than described length of holding the groove 3 of diaphysis, and situation shown in Figure 1 is that the length of pressure rod 8 and support bar 7 all is longer than described situation of holding the groove 3 of diaphysis.Described pressure rod 8 and support bar 7 embodiment superimposed and that be placed in described vertical cavity 14 mutually can be: the side of described pressure rod 8 and support bar 7 comprises the superposed surfaces 15 that longitudinally both is combined into one and the lateral surface 18,19 that joins with 15 two vertical outer side edges of described superposed surfaces respectively.Different according to the shape of cross section of support bar 7 and pressure rod 8, its superposed surfaces 15 can be plane or cambered surface, can certainly be other shape, is corrugated curved surface or faces directly such as its cross section of coupling mutually, shown in Fig. 3 d and Fig. 3 e.The lateral surface 19 of described pressure rod matches with the shape of at least part of inwall of described vertical cavity 14, the lateral surface 19 that is pressure rod can closely contact with at least a portion of described vertical cavity 14 inwalls, such as if vertically cavity 14 is cylinder (comprising oval cylinder), then the lateral surface 19 of pressure rod also is the consistent circular arc (comprising elliptic arc) of size and position with it, shown in Fig. 3 a; If the shape of described vertical cavity 14 is cuboids, then the lateral surface 19 of pressure rod is the consistent plane of size and position with it, shown in Fig. 3 c.The superposed surfaces 15 of described support bar 7 matches with the superposed surfaces 15 of described pressure rod 8 and matches with at least part of inwall of described vertical cavity 14.Described vertical cavity 14 is except can being the above-mentioned cylindrical cavity (comprising oval cylinder) and cuboid cavity (comprising the square cavity), it can also be other shape, as long as the superposed surfaces of described pressure rod 8 15 is identical shape with at least a portion of its lateral surface 19, shown in Fig. 3 e.If the superposed surfaces 15 of described pressure rod 8 can not finished bone grafting for identical shape with its lateral surface 19 yet certainly, but effect is relatively poor.Described support bar 7 has at least one superposed surfaces 15, shown in Fig. 3 a, can certainly be the superposed surfaces 15 that is complementary with described pressure rod 8 and described vertical cavity 14 in its both sides, shown in Fig. 3 b, Fig. 3 c, Fig. 3 e.In summary it can be seen that the cross section of described vertical cavity 14 can or equal pressure rod 8 and support bar 7 as described in (shown in Fig. 3 b) are superimposed as the column structure that forms after the one along superposed surfaces 15 cross section greater than (shown in Fig. 3 a, Fig. 3 c).Two determined planes of vertical outer side edges of described superposed surfaces 15 overlap with described mating surface, parallel or approximate parallel, shown in the lateral surface 18 of the support bar of Fig. 3 a and Fig. 3 c.Could guarantee that like this bone material of inserting is in opening one side of holding the diaphysis groove, and can not fall in the enclosed space that support bar and sealing one side of holding the diaphysis groove form, can guarantee that bone material is smoothly in the implantable bone tunnel.At least a portion inwall at described vertical cavity 14 is under the situation of cambered surface, the superposed surfaces 15 of described support bar 7 is respectively cambered surface with the lateral surface 19 of described pressure rod, the cambered surface of the cambered surface of the superposed surfaces 15 of described support bar 7 and the lateral surface 19 of described pressure rod and suitable with the cambered surface of described vertical cavity 14 inwalls is shown in Fig. 3 a, 3b.
Described pressure rod 8 rear ends are provided with pull-out elements 12.Described pull-out elements 12 can be handle as shown in Figure 1, also can be that braking member is such as the mechanical mechanism of being made up of button, spring, also can only be that pressure rod 8 cavity 14 directions prolongation longitudinally exceeds described part of holding outside diaphysis 1 rear end, as long as the structure that pressure rod 8 can be pulled out all should be thought pull-out elements 12 of the present invention.
Multiple different shape and structure can be made in the top of described pressure rod 8, and all can realize that insertion holds diaphysis 1 and push the purpose of support bar, but be preferably ramp structure 20, as shown in Figure 1, such as can being wedge shape or pyramidal structure,
It is two-stage structure that the described diaphysis of holding can be set, and as shown in Figure 4, is respectively leading portion 21 and back segment 22, and described leading portion 21 comprises the groove 3 of holding diaphysis; Described back segment 22 comprises tubular structure 9, and is connected with described leading portion 21 one; Being connected to continuous the connection or smooth connection of the rear end of the inner chamber of described tubular structure 9 and the described groove 3 of holding diaphysis; Described slip lid 2 vertically passes the described back segment 22 of holding diaphysis and is combined together with the described leading portion 21 of holding diaphysis and forms vertical cavity 14.Described smooth connection refers to there is not step or significantly raised or sunken in the junction; Described continuous connection refers to that the shape of its junction and/or its radius of curvature are also all identical with this shape of two sections and/or its radius of curvature when the shape of the shape of the cavity of holding diaphysis back segment 22 and position and the groove of described leading portion 21 and position are all identical.Preferably, the tubular structure 9 of the described back segment of holding diaphysis is hollow cylindrical structure, and/or the inwall of its inner chamber is cambered surface, and namely its cross section be circle or oval, or the closed figure of being made up of two relative straight flanges and two relative circular arcs.Inwall at described vertical cavity 14 is under the situation of cambered surface, the inner chamber of described tubular structure 9 can be the homogeneous texture of the identical one of shape with the described inner chamber of holding the position limiting structure 5 of diaphysis, as shown in Figure 5, also can be and described inner chamber smooth connection or the continuous two-stage structure that be connected, that have same diameter or different-diameter of holding the position limiting structure 5 of diaphysis.Certainly, the inner chamber of described tubular structure 9 can be in or be not in the described cavity of diaphysis back segment 22 and/or the axis of vertical cavity 14 held.Not careless movable in order to make described tubular structure 9 can limit described bone grafting device, described tubular structure 9 is provided with ledge structure 29 at the end outer wall near described groove 3 one sides.The described back segment 22 of holding diaphysis can also comprise the described position limiting structure of holding diaphysis 5 and or control structure 10.Certainly, described back segment 22 can also comprise other supplementary structure, and in fact, described back segment 22 can be used as increases the carrier of other possible miscellaneous function to holding diaphysis, and the function of holding diaphysis can further be expanded.Described tubular structure 9 can be integrative-structure or split package assembly with the described leading portion 21 of holding diaphysis.
Described diaphysis 1, slip lid 2, pressure rod 8 and the support bar 7 held can be made by medical metal or nontoxic plastic material.To satisfy certain intensity requirements and toughness reguirements.Can certainly select for use certain flexibility plastics or toughening ceramic.So-called plastic material refers to that under external force the material that is not destroyed though produce significantly distortion generally includes engineering plastics, plastic alloy, glass fibre etc.Toughness toughening ceramic preferably also belongs to available plastic material.
Described holding can also comprise on the diaphysis 1 described slip lid 2, described support bar 7 and described pressure rod 8 are carried out spacing stopping means.As a specific embodiment, have under the situation of through hole at described position limiting structure 5, described through-hole side wall can be provided with cannelure, can be provided with stopping means in described cannelure.As an example, the following stopping means of introducing the engaging mode with reference to Fig. 6.At this moment, described stopping means comprises the big screens 25 of the position of the described slip lid 2 of restriction and described pressure rod 8, have on the described slip lid 2 with described big screens 25 of holding diaphysis 1 and engage spacing spacing hole 27, described pressure rod 8 be provided with for hold diaphysis 1 on big screens 25 engage spacing a plurality of limited impressions 30.In addition, described stopping means can also comprise limiting the lesser calorie position 26 of the position of support bar 7.The little groove 28 corresponding with lesser calorie position 26 arranged on the described support bar 7.The described stopping means of holding diaphysis 1 can also comprise Control Component (such as button 13 and with the spring 23 of button 13 Collaborative Control), in order to realize the engaging operation, as shown in Figure 6.Certainly, the stopping means of alternate manner can also be arranged, such as stopping means of screw-on etc.Described slip lid 2 and described pressure rod 8 have scale, and the scale of described slip lid 2 and described pressure rod 8 is corresponding one by one.
Aforesaid hold diaphysis, slip lid, support bar, pressure rod all can be used as stand-alone assembly produce after again the assembling.
The described diaphysis of holding is the column structure with longitudinal length, its side comprises the outer surface that is provided with mating surface longitudinal fluting, that extend longitudinally and joins with two vertical outer side edges of described mating surface, described mating surface and the described outer surface of holding diaphysis should be adaptive mutually with mating surface and the outer surface of described slip lid respectively, and the back is described holds outer surface, the groove combination separately that diaphysis and described slip lid outer surface separately constitute complete combination cylinder and constitute complete vertical cavity so that two mating surfaces fasten; Described groove top of holding diaphysis has the enclosed construction of the described vertical cavity accent of sealing, and described enclosed construction is connected, is articulated and connected or removably connect with described groove one of holding diaphysis; The described diaphysis of holding comprises that also the described slip lid of restriction and/or pressure rod can only be along the described position limiting structures that vertically moves of holding the groove of diaphysis.The described diaphysis of holding can also be two-stage structure, is respectively leading portion and back segment, and described leading portion comprises the groove of holding diaphysis; Described back segment comprises above-mentioned tubular structure.
Described slip lid is the column structure with longitudinal length, its side comprises the outer surface that is provided with mating surface longitudinal fluting, that extend longitudinally and joins with two vertical outer side edges of described mating surface, the mating surface of described slip lid and described outer surface are should be respectively adaptive mutually with described mating surface and the outer surface of holding diaphysis, and the back is described holds outer surface, the groove combination separately that diaphysis and described slip lid outer surface separately constitute complete combination cylinder and constitute complete vertical cavity so that two mating surfaces fasten.Described slip lid can also have position limiting structure and/or control structure; Described slip lid can also have the stopping means that is complementary with the stopping means of holding diaphysis, such as spacing hole.Described slip lid can also have scale.
Described pressure rod and described support bar are mutually superimposed and be placed in described vertical cavity.
As an embodiment, the side of described pressure rod can comprise longitudinally the superposed surfaces that pressure rod and support bar group are integrated, and the lateral surface that joins with two vertical outer side edges of described superposed surfaces; The lateral surface of described pressure rod matches with the shape of at least part of inwall of described vertical cavity, and/or two determined planes of vertical outer side edges of described superposed surfaces overlap with described mating surface, parallel or approximate parallel.
Accordingly, the side of described support bar can comprise longitudinally the superposed surfaces that pressure rod and support bar group are integrated, and the lateral surface that joins with two vertical outer side edges of described superposed surfaces; The superposed surfaces of described support bar matches with the superposed surfaces of described pressure rod, matches with at least part of inwall of described vertical cavity; And/or two determined planes of vertical outer side edges of described superposed surfaces overlap with described mating surface, parallel or approximate parallel.
The side direction bone grafting using method of described bone grafting device can comprise the steps:
1) load bone material (such as being bone cement or bone piece etc.) process:
1.1) with pressure rod and the superimposed vertical cavity of holding diaphysis of putting into of support bar, and pressure rod is between support bar and slip lid, pressure rod is outwards extracted out at least in part (if there is pull-out elements then to use pull-out elements, if there is not pull-out elements then to use external tool, such as clip pressure rod is pulled out); Open described slip lid (deadweight or external tool such as clip that can be by slip lid, or the assembly of uncapping of himself be such as big screens, little screens and spring and button etc.), expose the groove of holding diaphysis at least in part; If slip lid has scale, then can be opened to corresponding scale according to result of calculation.
1.2) bone material is filled into the described expose portion of holding the groove of diaphysis;
1.4) closed slip lid is to the described enclosed construction of holding diaphysis, bone material is enclosed in vertical cavity of described bone grafting device;
1.5) described pressure rod is inserted the described groove of holding diaphysis, bone material is exerted pressure;
2) side direction bone grafting:
2.1) described bone grafting device is sent into osseous tunnel.
2.2) open slip lid; Described pressure rod is extracted out the groove of holding diaphysis, and Rotate 180 °, between described support bar and described sealing one side of holding the diaphysis groove, insert the described groove of holding diaphysis, in described pressure rod insertion process, apply power with pressure rod to described support bar, support bar promotes bone material, makes bone material enter osseous tunnel and carries out bone grafting.This step is that pressure rod and post position are exchanged, and reaches by pressure rod extruding support bar, support bar extruding bone material, and bone material or other fillers are expressed in the osseous tunnel sidewall space, replenishes the purpose of the damaged part of bone.
2.3) with the described diaphysis Rotate 180 ° held, utilize and hold the outer surface of diaphysis with the bone material compacting; Closed slip lid.This step is that the bone material of just mending into osseous tunnel is carried out compacting to the peripheral defect location of osseous tunnel, so that follow-up operation needs.Usually, should select the bone grafting device with osseous tunnel size coupling before the bone grafting for use, make bone grafting device its sidewall after inserting osseous tunnel with the inwall of osseous tunnel tight the contact be arranged, the outer surface that the ability better utilization is held diaphysis in this step carries out compacting to bone material.
3) described bone grafting device is taken out repeated execution of steps 1 from osseous tunnel) put into bone material; Then to the osseous tunnel opposite side according to step 2) carry out bone grafting.
Bone grafting device provided by the invention has damaged situation can carry out sidewall pressurization bone grafting at osseous tunnel, and osseous tunnel is repaired.For example after the failure of anterior cruciate ligament reconstruction operations, possible green bone tunnel location is no problem, does not need to rebulid passage, can carry out sidewall pressurization bone grafting at former channel position, the damaged part of former channel position periphery is repaired, directly use former passage rebuilding anterior cruciate ligament again.This bone grafting device is simple to operate, can shorten doctor's operating time, and can carry out Minimally Invasive Surgery under endoscope, greatly reduces patient's misery, and has reduced the risk that infect in the affected part.Bone grafting device of the present invention is fit to the bone grafting operation that any osseous tunnel needs are repaired, such as the sidewall of tubular bone being filled and full osseous tunnel filling bone grafting operation.
Claims (16)
1. a bone grafting device is characterized in that, comprises and holds diaphysis, slip lid, pressure rod and support bar;
Described diaphysis, slip lid, pressure rod and the support bar held is the column structure with longitudinal length, describedly hold diaphysis and described slip lid side separately includes the outer surface that is provided with mating surface longitudinal fluting, that extend longitudinally and joins with two vertical outer side edges of described mating surface, the mating surface of the described mating surface of holding diaphysis and described slip lid is suitable, the back is described holds the outer surface that diaphysis and described slip lid outer surface separately constitute complete combination cylinder so that two mating surfaces fasten, and groove combination separately constitutes complete vertical cavity; Described groove top of holding diaphysis has the enclosed construction of the described vertical cavity accent of sealing, and described enclosed construction is connected, is articulated and connected or removably connect with described groove one of holding diaphysis; Described pressure rod and described support bar are mutually superimposed and be placed in described vertical cavity; The described diaphysis of holding comprises that also the described slip lid of restriction and/or pressure rod can only be along the described position limiting structures that vertically moves of holding the groove of diaphysis.
2. bone grafting device according to claim 1 is characterized in that, the side of described pressure rod and described support bar comprises the superposed surfaces that longitudinally both is combined into one respectively, reaches the lateral surface that joins with two vertical outer side edges of described superposed surfaces; The lateral surface of described pressure rod matches with the shape of at least part of inwall of described vertical cavity, and the superposed surfaces of described support bar matches with the superposed surfaces of described pressure rod, matches with at least part of inwall of described vertical cavity; And/or two determined planes of vertical outer side edges of described superposed surfaces overlap with described mating surface, parallel or approximate parallel.
3. bone grafting device according to claim 2, it is characterized in that, the inwall of described vertical cavity is cambered surface, the superposed surfaces of described support bar and the lateral surface of described pressure rod are respectively arcwall face, and the arc of the arc of the superposed surfaces of described support bar and the lateral surface of described pressure rod and the arc of described vertical cavity inner wall are suitable.
4. bone grafting device according to claim 1 is characterized in that, the length of described pressure rod and/or support bar equals or is longer than described groove length of holding diaphysis.
5. bone grafting device according to claim 1 is characterized in that, the outer surface of described combination cylinder is the circular arc cylinder.
6. bone grafting device according to claim 1 is characterized in that, described pressure rod rear end is provided with pull-out elements, and/or described slip lid comprises the assembly of uncapping.
7. bone grafting device according to claim 1 is characterized in that, described pressure rod top has is convenient to insert the described ramp structure of holding diaphysis.
8. bone grafting device according to claim 1 is characterized in that, described position limiting structure is the column structure that is provided with a through hole, and described pressure rod and support bar pass described through hole and enter in described vertical cavity; The Breadth Maximum of the identical or described through hole of the Breadth Maximum that the Breadth Maximum of described through hole and described pressure rod and described support bar are superimposed together is more bigger than the Breadth Maximum that described pressure rod and described support bar are superimposed together.
9. bone grafting device according to claim 8, it is characterized in that, described through-hole side wall is provided with cannelure, be provided with stopping means in the described cannelure, described stopping means comprises the big screens of the position of the described slip lid of restriction and described pressure rod, have on the described slip lid with described big screens and engage spacing spacing hole, described pressure rod is provided with for engage spacing a plurality of spacing little groove with described big screens;
And/or described slip lid and described pressure rod have scale, and the scale of described slip lid and described pressure rod is corresponding one by one.
10. bone grafting device according to claim 9 is characterized in that, described stopping means also comprises limiting the little screens of the position of support bar, and the little groove corresponding with the lesser calorie position arranged on the described support bar.
11. bone grafting device according to claim 1 is characterized in that, the described enclosed construction of holding the diaphysis front end is demountable structure, or comprises detachable member;
And/or the outside of described enclosed construction is spherical crown.
12. according to any described bone grafting device in the claim 1 to 11, it is characterized in that the described diaphysis of holding is two-stage structure, is respectively leading portion and back segment, described leading portion comprises the described groove of holding diaphysis; Described back segment comprises tubular structure, and is connected with described leading portion one; Being connected to continuous the connection or smooth connection of the rear end of the inner chamber of described tubular structure and the described groove of holding diaphysis; Described slip lid vertically passes the described back segment of holding diaphysis and is combined together with the described leading portion of holding diaphysis and forms vertical cavity.
13. bone grafting device according to claim 12 is characterized in that, described tubular structure is provided with ledge structure at the end outer wall near described groove one side.
14. bone grafting device according to claim 13 is characterized in that described position limiting structure is arranged within the described tubular structure.
15., it is characterized in that described diaphysis, slip lid, pressure rod and the support bar held made by medical metal or nontoxic plastic material according to any described bone grafting device in the claim 1 to 11.
16. bone grafting device according to claim 14 is characterized in that, described diaphysis, slip lid, pressure rod and the support bar held made by medical metal or nontoxic plastic material.
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| CN 201110265338 CN102429710B (en) | 2011-09-08 | 2011-09-08 | Bone grafting instrument and application method thereof |
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| CN 201110265338 CN102429710B (en) | 2011-09-08 | 2011-09-08 | Bone grafting instrument and application method thereof |
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| CN102429710B true CN102429710B (en) | 2013-07-17 |
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|---|---|---|---|---|
| CN101002694A (en) * | 2005-12-20 | 2007-07-25 | 贺新宁 | Trans-vertebral arch pedicle type hollow vertebra centrum bone-grafting apparatus |
| US7670342B2 (en) * | 2006-01-25 | 2010-03-02 | Warsaw Orthopedic, Inc. | Osteochondral implant procedure and device |
| CN201701281U (en) * | 2010-06-24 | 2011-01-12 | 夏建龙 | Intervertebral bone grafting apparatus |
| CN202211740U (en) * | 2011-09-08 | 2012-05-09 | 北京纳通科技集团有限公司 | Bone grafting instrument |
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- 2011-09-08 CN CN 201110265338 patent/CN102429710B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101002694A (en) * | 2005-12-20 | 2007-07-25 | 贺新宁 | Trans-vertebral arch pedicle type hollow vertebra centrum bone-grafting apparatus |
| US7670342B2 (en) * | 2006-01-25 | 2010-03-02 | Warsaw Orthopedic, Inc. | Osteochondral implant procedure and device |
| CN201701281U (en) * | 2010-06-24 | 2011-01-12 | 夏建龙 | Intervertebral bone grafting apparatus |
| CN202211740U (en) * | 2011-09-08 | 2012-05-09 | 北京纳通科技集团有限公司 | Bone grafting instrument |
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Owner name: BEIJING LAIDUN BIOMATERIAL CO., LTD. Free format text: FORMER OWNER: BEIJING NATONG TECHNOLOGY GROUP CO., LTD. Effective date: 20150113 Owner name: BEIJING NATONG TECHNOLOGY GROUP CO., LTD. LI ZHONG Free format text: FORMER OWNER: LI ZHONGLI Effective date: 20150113 |
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Effective date of registration: 20150113 Address after: 100095, 1, 2, 3-3, 3-4, North Ching Road, 103, Beijing, Haidian District Patentee after: Beijing Laidun Biomaterial Co., Ltd. Patentee after: Beijing Natong Technology Group Co., Ltd. Patentee after: Li Zhongli Address before: 100094 Beijing city Haidian District Deshengmen West Street No. 15 ocean scenery area 8-2-1201 room Patentee before: Beijing Natong Technology Group Co., Ltd. Patentee before: Li Zhongli |