CN100484487C - Riveting nail for medical skelecton - Google Patents
Riveting nail for medical skelecton Download PDFInfo
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- CN100484487C CN100484487C CNB200510118260XA CN200510118260A CN100484487C CN 100484487 C CN100484487 C CN 100484487C CN B200510118260X A CNB200510118260X A CN B200510118260XA CN 200510118260 A CN200510118260 A CN 200510118260A CN 100484487 C CN100484487 C CN 100484487C
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Abstract
A method for fixing bone in orthopaedic repair operation includes such steps as primary location of fractured bone at the fixing position, installing the fixing nails, deforming the end of said nails for fixing it at the internal side of bone, and using the nail cap to connect the bone to the fixing plate. Said nail features that the deformation at its end is controllable.
Description
Technical field
The present invention relates to medical orthopaedics and repair fixing operation field, particularly a kind of medical skeletal fixation method and staple thereof.
Technical background
Human body, resets bone earlier during surgical intervention because of after a variety of causes bone fractures, and two sections are involutory, and reuse orthopaedics fixation device is fixed.Concrete condition difference according to fracture on fixed form adopts external fixation or internal fixation.Aspect internal fixation, all be at present to adopt steel plate and screw or Kirschner wire that two broken ends of fractured bone of bone are made internal fixation.This with steel plate connect, there are the following problems for the technology of screw fixings: the firm degree of screw fixings to depend on connect the size of thickness, density and the drag of skeleton cortical bone, for miniature bone, cranio-maxillofacial for example, cheekbone, socket of the eye bone and spongy bone, because its thickness and drag are all very little, the firm degree of screw fixings is not high, intensity is less, even can't use screw fixings.Need rotation during screw fixings, thus inconvenient operation, needing bigger surgical wound, the tissue injury outer to skeleton is very big.In the fixing operation of miniature bone, because the intensity of skeleton is far smaller than the intensity of screw, and it is very fragile, so follow closely in the fixed process at rotary screw, cause breaking or even fragmentation of skeleton easily, cause expendable wound, operating difficulty is very high, and is also very harsh to doctor's specification requirement.And reach hard fixed the time when screw, and it is big especially to be subjected to bone density, thickness effect, and range of application is limited, and the spongy bone that has can not be used at all.Above technological deficiency has caused in the existing skeletal fixation operation, and there is defective in the skeletal fixation effect.
Chinese patent application, application number are 97190009.4 to disclose a kind of bone screw, and its scheme is after being screwed into screw, expand by the expansion rod member, to reach the purpose of reinforcing fastening force.But, need to adopt screwdriver that nail is screwed in the skeleton, therefore need bigger surgical wound so that the screwdriver rotary manipulation because it adopts drive screw.And the screw-type nail is laterally oppressed skeleton easily in being screwed into the process of skeleton, cause skeleton to break, and causing can't fixed consequence.So this scheme needs doctor's very careful operation in operation process, selects suitable fixed position, and this scheme is not suitable in the connection operation of skeleton of very thin thickness yet, caused the limitation of using.
Summary of the invention
The objective of the invention is to overcome defective of the prior art, provide to have firm bed knife, the constant intensity height can be applicable to the fixing of all skeletons of human body, skeletal fixation method and staple thereof that operation wound is little.
The present invention is achieved through the following technical solutions its goal of the invention.
The present invention at first provides a kind of medical skeletal fixation method, the skeleton that is connected fracture by the cooperation of fixing head and staple, its process is as described below: at first the skeleton with fracture carries out Primary Location in the fixed position, owing to generally can produce dislocation after the bone fracture, therefore it must be resetted, position in the fixed position of needs; And respectively the both sides that skeleton connects seam offer with fixing head on the corresponding connecting hole of fixing hole, be used to install and fix nail, the diameter of connecting hole is general with the end that equals staple.Next be the staple end is passed the fixing hole of fixing head and to be inserted in the connecting hole of skeleton; Opening diameter on the fixing head is less than the head of a nail, and the head of a nail of staple front end is stuck in the outside of fixing head.Make the terminal distortion of staple, can be connected to the inboard of skeleton after the end distortion of staple, cooperate fastening fixing head of the head of a nail and skeleton.
The medical skeletal fixation method of another kind provided by the invention, it is the skeleton that directly connects fracture by staple, the concrete operations step is as follows: at first as first method, the skeleton of fracture is carried out Primary Location in the fixed position, and offer connecting hole on a slice skeleton therein, connecting hole runs through connection and is stitched in another sheet skeleton, and the diameter of connecting hole needs less than the head of a nail.Then the staple end is passed by connecting hole that wherein a slice skeleton is to another sheet skeleton, the head of a nail of staple front end is stuck in the outside of skeleton.Be to make the terminal distortion of staple equally at last, and cooperate fastening two skeletons of the head of a nail.Or with Dan Ding two splitting bone pieces are made the riveted formula and fix.
Operation method provided by the invention can be fixed owing to need not to follow closely the body rotation, and be not to cooperate with skeleton by screw thread to fix, and therefore, when carrying out the skeleton internal fixation, the wound face of the outer tissue of skeleton is little, can realize Wicresoft, and operation is also very easy simultaneously.Perforate can be adopted special instrument on skeleton, such as medical brill, laser, ultrasound wave or giant etc., with respect to the existing mode that directly adopts spiral staple, horizontal compressing power to skeleton is very little, less infringement to skeleton guarantees can not cause breaking of skeleton in the punching process.Therefore can be suitable for various skeletons, or even small-sized laminar skeleton.In addition, of the present invention fixedly is by similar riveted way fixation steel plate and skeleton, therefore is subjected to thickness, density, the resistance effect of institute's synthetism bone cortex amount less, applied widely, all big or small skeletons of whole body are all applicable, and firmly decide the degree extra-high-speed, and intensity is especially big.In two kinds of above-mentioned methods less to the requirement of strength of staple owing to adopt the mode offer connecting hole in advance, therefore staple can be made miniaturization more, general diameter is between 1～6mm.
The present invention in the end makes the mode of the terminal distortion of staple that various ways can be arranged in the step, such as adopting various ways such as memory metal, chemically expansible, temperature expansion.It is that axis hole by being located at the staple center applies pulling force or pressure to the staple end that most economical mode makes, and makes that staple is terminal to expand or crooked, and this mode is similar to the mode of the swell fixture of industrial usefulness.Adopt the staple of this mode can simplified structure, particularly for being used for the human skeleton standing finish, because accessory needs miniaturization, so the accessory structure is simple more, processing and producing with regard to Vietnamese side just can be produced in batches.And form riveted structure after the staple of this mode is fixing, have very high structural stability, the injury to skeleton in the connection procedure is also very little, helps the patient and recovers rapidly.
The invention discloses a kind of riveted type staple that uses the medical skeleton of above-mentioned two kinds of methods, include the nail body on the structure and be positioned at the head of a nail of following closely the body front end, the nail body adopts non-screw-in riveted structure, and be provided with a through hole and run through the whole nail body and the head of a nail, in through hole, be equipped with core body, one end of core body freely stretches out from the head of a nail is outside, and the other end is provided with the expansion-head of slightly larger in diameter in the through hole internal diameter, and expansion-head is positioned at the terminal outside of nail body.In the process of using, intercept the length of following closely body, will follow closely body again and insert in the connecting hole by the thickness of required fix bone and the degree of depth of connecting hole.Make core body and nail body do adverse movement then, then apply pulling force at the core body front end, make its terminal expansion-head enter the intravital through hole of nail, the front portion of nail body is expanded under the compressing of expansion-head and is expanded, and with the structure of head of a nail formation riveted joint, the parts that needs connect is fixed.The shape of expansion-head of the present invention is the rotary body of the bandy geometric surface of outer side edges, and front end can have the inclined plane of a transition, helps the distortion of extruding nail body front end.Nail body end is made of at least 2 isolating expansion pieces, can open distortion when being subjected to the expansion-head compressing.Apply pulling force to core body, make after the terminal distortion of expansion-head compressing nail body, cut off core body its front end is flushed with the head of a nail.Also can be provided with expansion-head disjunction neck at the core body position that is connected with expansion-head, its diameter is less than the diameter at other position of core body.When reaching certain design pulling force, the fracture of the disjunction neck of core body end is removed and the isolating core body of expansion-head, and expansion-head is squeezed in the intravital through hole of nail, and operation process has been simplified in the formality that need not to cut off.Expansion-head can also be made into the Y-shaped structure in cross section, and be provided with the weak portion of distortion in the middle, perhaps expansion-head being made becomes hollow structure.When exerting pressure to core body, expansion-head self also deforms in the terminal distortion of compressing nail body, can extract out from through hole at last, and is more safe and reliable.
It is the head of a nail that includes the nail body and be positioned at nail body front end that another kind disclosed by the invention is used on the riveted type staple structure of medical skeleton of said method, and the nail body adopts non-screw-in riveted structure, is provided with a through hole equally and runs through the nail body and the head of a nail.Its nail body end is made of at least 2 isolating expansion pieces, the internal diameter that expansion piece surrounds is less than the diameter of through hole, be equipped with core body in through hole, the front end of core body freely stretches out from the head of a nail is outside, and end diameter is between the diameter of internal diameter that expansion piece surrounds and through hole.In the process of using, will follow closely body and insert in the connecting hole, and exert pressure to core body then, the expansion piece of pushing tow nail body end is because the internal diameter that expansion piece surrounds is less than the diameter of through hole, so can outwards be out of shape expansion under the effect of core body.Cooperate fixed the time when distortion is sufficient to the head of a nail, draw back core body or block core body and the head of a nail flushes.Also can be in through hole, the front end of core body adds a plunger tip, the plunger tip end diameter is between the diameter of internal diameter that expansion piece surrounds and through hole.In the process of using, promote the distortion of plunger tip extrusion expansion sheet, extract core body at last out, keep plunger tip between expansion piece, keep expansion piece to be in the state of distortion by core body.
The riveted type staple of two kinds of above-mentioned structures can adopt rustless steel or titanium niobium metal material, characteristics such as titanium niobium metal material has the intensity height, and resistance to corrosion is strong, and the rejection that occurs in human body is little, can remain in for a long time in the human body body, need not to change.Also can adopt macromolecule, human body absorbable material to make.As a kind of novel surgical material, macromolecular material can slowly be absorbed by the body, and forms the part of human body, therefore has more safety.In order to guarantee that staple can not come off, the present invention can have tooth or matsurface in above-mentioned two kinds of external surface distributed of nail.
The present invention has following outstanding substantive distinguishing features and obvious improvement with respect to prior art.
1. the inventive method step is simple, and is easy and simple to handle, can be applicable to Minimally Invasive Surgery;
2. adopt the fixed skeleton of this method closely to contact, fastness is good, and fastening force is strong, and fixing being difficult for afterwards is shifted, and helps patient's rehabilitation as early as possible;
3. this method is not only applicable to the reparation of general skeletal injury, can also be applied in the cosmetic surgery in the processing, finishing to skeleton;
4. this method is little to the infringement of skeleton in operating process, can be applicable on the various skeletons of human body, particularly, can guarantee that it can not play good fixed effect under the disruptive situation, overcome the great deficiency of existing rotary staple for small-sized, sheet type skeleton;
5. staple of the present invention has good fixed effect, and fixing skeleton afterwards can not become flexible or slide relatively, has very high reliability;
6. described riveted type staple simple in structure is convenient to suitability for industrialized production and processing, and can be made into very small-sized specification, is applicable to the fixing of multiple small-sized, sheet type skeleton, less greatly surgical wound area, the recovery of favourable patient's postoperative;
7. riveted type staple of the present invention has multiple structure, carry out fixed mode and can draw and push away dual mode, made things convenient for the doctor in operation process, to select suitable staple structure and modus operandi at different type of surgery, operative site, the motility height has improved surgical effect to a great extent;
8. the riveted type staple is easy to operate in operation process, need not excessive surgical wound, helps the enforcement of Minimally Invasive Surgery, reduces patient's misery, helps rehabilitation.
Description of drawings
Fig. 1 is the operation chart of the inventive method embodiment 1;
Fig. 2 is the operation chart of the inventive method embodiment 2;
Fig. 3 A is the structural representation of riveted type staple embodiment 1 of the present invention;
Fig. 3 B is the user mode figure of Fig. 3 A embodiment;
Fig. 4 A is the structural representation of riveted type staple embodiment 2 of the present invention;
Fig. 4 B is the user mode figure of Fig. 4 A embodiment;
Fig. 5 A is the structural representation of riveted type staple embodiment 3 of the present invention;
Fig. 5 B is the user mode figure of Fig. 5 A embodiment;
Fig. 6 A is the structural representation of riveted type staple embodiment 4 of the present invention;
Fig. 6 B is the user mode figure of Fig. 6 A embodiment;
Fig. 7 A is the structural representation of riveted type staple embodiment 5 of the present invention;
Fig. 7 B is the user mode figure of Fig. 7 A embodiment;
Fig. 8 A is the structural representation of riveted type staple embodiment 6 of the present invention;
Fig. 8 B is the user mode figure of Fig. 8 A embodiment;
Fig. 9 A is the structural representation of riveted type staple embodiment 7 of the present invention;
Fig. 9 B is the user mode figure of Fig. 9 A embodiment;
Figure 10 A is the structural representation of riveted type staple embodiment 8 of the present invention;
Figure 10 B is the user mode figure of Figure 10 A embodiment;
Figure 11 A is the structural representation of riveted type staple embodiment 9 of the present invention;
Figure 11 B is the user mode figure of Figure 11 A embodiment;
Figure 12 A is the structural representation of riveted type staple embodiment 10 of the present invention;
Figure 12 B is the user mode figure of Figure 12 A embodiment;
Figure 13 A is the structural representation of riveted type staple embodiment 11 of the present invention;
Figure 13 B is Figure 13 A profile;
Figure 13 C is the user mode figure of Figure 13 A embodiment;
Figure 14 A is the structural representation of riveted type staple embodiment 12 of the present invention;
Figure 14 B is the user mode figure of Figure 14 A embodiment;
Figure 15 A is the structural representation of riveted type staple embodiment 13 of the present invention;
Figure 15 B is the user mode figure of Figure 15 A embodiment;
Figure 16 A is the structural representation of riveted type staple embodiment 14 of the present invention;
Figure 16 B is the user mode figure of Figure 16 A embodiment;
Figure 17 A is riveted type staple embodiment 15 fixing preceding view of the present invention;
Figure 17 B is riveted type staple embodiment 15 fixing back view of the present invention;
Figure 18 A is riveted type staple embodiment 16 fixing preceding view of the present invention;
Figure 18 B is riveted type staple embodiment 16 fixing back view of the present invention.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
As shown in Figure 1, operating process is shown in arrow among the figure, and the skeleton A of the method for present embodiment fracture is connected with 4 staples 10 by fixing head B with C, shown in first figure of Fig. 1.At first skeleton A and the C with fracture carries out Primary Location in the fixed position, and respectively skeleton A be connected with C the seam both sides offer with fixing head B on fixing hole 11 corresponding connecting holes 12, connecting hole 12 can be offered by laser, shown in first figure of Fig. 1 and second figure.Then, staple 10 ends are passed the fixing hole 11 of fixing head B and be inserted in the connecting hole 12 of skeleton A and C, the head of a nail of staple 10 front ends is stuck in the outside of fixing head B, shown in second figure.Apply pulling force for the core body of staple 10, make the end distortion of staple 10, be connected and fixed plate 2 and skeleton A and C, cut off unnecessary core body when distortion is enough to cooperate the head of a nail.Structure after fixing is shown in the 3rd figure, as long as offer very tiny connecting hole 12 at skeleton A and C, the about 1～2mm of diameter is just can fix two skeleton A and C by staple 10 and fixing head B as can be seen.With the difference of existing operation method be, the inventive method is to offer connecting hole 12 in advance, and is fixing by staple 10 again.Compared with the existing mode that directly adopts the staple punching, the inventive method is very little to the infringement of skeleton, can be suitable for the connection between thin, the weak skeleton especially, such as for example cranio-maxillofacial.
The method of present embodiment is that fractured bone A directly is connected by staple 10 with C, and its fixation procedure is shown in Fig. 2 arrow.At first skeleton A and the C with fracture carries out Primary Location in the fixed position, and offers connecting hole 12 on skeleton C, and connecting hole 12 runs through connection and is stitched among another sheet skeleton A, shown in first figure.Then staple 10 ends are passed by connecting hole 12 that wherein a slice skeleton C is to another sheet skeleton A, the head of a nail of staple 10 front ends is stuck in the outside of skeleton C.Install after the staple 10, give its core body applied thrust, shown in second figure.Core body makes staple 10 terminal distortion, cooperates the head of a nail to connect two skeleton A and C, extracts core body then out, finishes the fixing of skeleton A and C, shown in the 3rd figure.
More than among two method embodiment core body the end of staple 10 is deformed, do further explanation below in conjunction with the concrete structure of staple 10.
The riveted type staple of a kind of medical skeleton as shown in Figure 3A, include nail body 1 and be positioned at the head of a nail 2 of following closely body 1 front end, one through hole 3 runs through the whole nail body 1 and the head of a nail 2, in through hole 3, be equipped with core body 4, one end of core body 4 outwards freely stretches out from the head of a nail 2, the other end is provided with the expansion-head 5 of slightly larger in diameter in through hole 3 internal diameters, and expansion-head 5 is positioned at the front end outside of nail body 1.Described staple adopts titanium niobium metal material, and in the process of use, the thickness of fixed skeleton is cut out the length of suitable nail body 1 at first on demand.Again staple is passed in the connecting hole that fixing head B offers in advance to skeleton A, apply pulling force for then core body 4, make it drive expansion-head 5 and move, the end of expansion-head 5 extruding nail bodies 1 relative to nail body 1, make it expand distortion, can cooperate the head of a nail 2 riveted and fixed plate B and skeleton A.After realizing the fixedlying connected of fixing head B and skeleton A, cut off unnecessary core body 4, its front end is flushed, shown in Fig. 3 B with the head of a nail 2.Riveted type staple of the present invention as can be seen easy to operate owing to do not adopt existing general rotational driving device in the operation, so also need not to offer bigger opening in operation process, can be realized the purpose of Wicresoft.
Present embodiment is to do further improvement on the structure of embodiment 1, and shown in Fig. 4 A, the structure of improvement is to be provided with expansion-head disjunction neck 6 at core body 4 positions that expansion-head 5 connects, and its diameter is less than the diameter at core body 4 other positions.Adopt titanium niobium metal material, apply pulling force for core body 4, make in the process of its end that drives expansion-head 5 extruding nail bodies 1, when pulling force reaches certain design pulling force, draw disjunction neck 6 fractures of core 4 front ends, remove and expansion-head 5 isolating core bodys 4, expansion-head 5 is squeezed in the through hole of following closely in the body 13.The tip engages head of a nail 2 riveted and fixed plate B and the skeleton A of expansible nail body 1 are shown in Fig. 4 B.Present embodiment need not to cut off unnecessary core body 4 these steps, so operation is simpler, goes for carrying out skeleton and connect in the comparatively narrow and small environment of operative space, in Minimally Invasive Surgery.
Present embodiment is to do further improvement on the structure of embodiment 1, shown in Fig. 5 A, the structure of improvement be will nail body 1 end be processed into by 4 isolating expansion pieces 8 and constitute.When applying pulling force for core body 4, because the end of nail body 1 is the structure of isolating expansion piece 8, so easy deformation more when receiving expansion-head 5 extruding.The staple of present embodiment adopts titanium niobium metal material, is applicable to when needing in the operation of higher bed knife.Owing to need bed knife higher, and, must improve the strength of materials of staple, cause it not yielding in order to be suitable for the structure of small staples.Be processed into expansion piece 8 structures so will follow closely the end of body 1, the distortion that helps following closely body 1 end, and the intensity of nail body 1 major part is still very high, can satisfy requirements of operation, shown in Fig. 5 B.
Present embodiment is to do further improvement on the basis of embodiment 2, and nail body 1 outer surface as shown in Figure 6A is distributed with tooth 9.Present embodiment adopts human body absorbable polymer material, and its scope that can be out of shape is little than titanium niobium metal material.So added after the tooth 9, as long as nail body 1 end is out of shape a little,, be connected on the skeleton A inboard just tooth 9 is opened, shown in Fig. 6 B, play reinforcing, prevent the effect that comes off.
Present embodiment is improved on embodiment 3, shown in Fig. 7 A, expansion-head 5 is processed into circle, like this in the process that core body 4 is pulled out, expansion-head 5 can make the bigger and easier expansion of expansion piece 8 unfolded angles, shown in Fig. 7 B, so more helps following closely the fixing of body 1.
Present embodiment is improved on embodiment 4, shown in Fig. 8 A, expansion-head 5 is processed into circle, like this in the process that core body 4 is pulled out, expansion-head 5 can make the terminal expansion of nail body easilier, can allow the unfolded angle of tooth bigger with the expansion-head of core body 4 after separating circles, shown in Fig. 8 B, more help following closely the fixing of body 1.
The riveted type staple of a kind of medical skeleton shown in Fig. 9 A, include nail body 1 and be positioned at the head of a nail 2 of following closely body 1 front end, one through hole 3 runs through the whole nail body 1 and the head of a nail 2, be equipped with core body 4 in through hole 3, an end of core body 4 outwards freely stretches out from the head of a nail 2, and the other end is provided with the expansion-head 5 of slightly larger in diameter in through hole 3 internal diameters, expansion-head 5 is positioned at the front end outside of nail body 1, its cross section is Y-shaped, and is provided with the weak portion 7 of distortion in the middle, and the end of nail body 1 is processed into by 4 isolating expansion pieces 8 and constitutes.Adopt titanium niobium metal material, in the use, expansion piece 8 deforms under the effect of expansion-head 5 easily because expansion-head 5 also is provided with the weak portion 7 of distortion, so its when making expansion piece 8 distortion, self also deforms.Shown in Fig. 9 B, the expansion-head 5 after the distortion can be directly extracted out from through hole 3, and core body 4 can not residue in the nail body 1, thus use safer, littler to the influence of human body.
Riveted type staple structure shown in Figure 10 A is similar to embodiment 7, and the cross section of expansion-head 5 is Y-shaped equally, and is provided with the weak portion 7 of distortion in the middle, and the terminal outside of distinguishing to nail body 1 is provided with tooth 9.In the process of pulling out core body 4, expansion-head 5 compressing nail bodies 1 end deforms it, and tooth 9 opens, and cooperates the head of a nail 2 fix bone A and fixing head B, shown in Figure 10 B.Simultaneously, expansion-head 5 also deforms, can be directly by pulling out in the through hole 3, core body 4 can not residue in the nail body 1, thus use safer, littler to the influence of human body.
The riveted type staple of a kind of medical skeleton shown in Figure 11 A, include nail body 1 and be positioned at the head of a nail 2 of following closely body 1 front end, one through hole 3 runs through the whole nail body 1 and the head of a nail 2, in through hole 3, be equipped with core body 4, one end of core body 4 outwards freely stretches out from the head of a nail 2, and the other end is provided with the expansion-head 5 of slightly larger in diameter in through hole 3 internal diameters, and expansion-head 5 is positioned at the front end outside of nail body 1, be hollow structure, in be provided with cavity 71.The end of nail body 1 is processed into by 4 isolating expansion pieces 8 and constitutes.Adopt titanium niobium metal material, in the use, expansion piece 8 deforms under the effect of expansion-head 5 easily because expansion-head 5 be a hollow structure, so its when expansion piece 8 is out of shape, self also deforms.Shown in Figure 11 B, the expansion-head 5 after the distortion can be directly extracted out from through hole 3, and core body 4 can not residue in the nail body 1, thus use safer, littler to the influence of human body.
Riveted type staple structure shown in Figure 12 A is similar to embodiment 9, and expansion-head 5 is a hollow structure, in be provided with cavity 71, the terminal outside of distinguishing to nail body 1 is provided with tooth 9.In the process of pulling out core body 4, expansion-head 5 compressing nail bodies 1 end deforms it, and tooth 9 opens, and cooperates the head of a nail 2 fix bone A and fixing head B, shown in Figure 12 B.Simultaneously, expansion-head 5 also deforms, can be directly by pulling out in the through hole 3, core body 4 can not residue in the nail body 1, thus use safer, littler to the influence of human body.
Present embodiment provides a kind of medical skeleton riveted type staple of new construction, as shown in FIG. 13A, includes nail body 11 and is positioned at the head of a nail 21 of following closely body 11 front ends, and nail body 11 ends are made of 4 isolating expansion pieces 81.In conjunction with the profile of Figure 13 B, a through hole 31 runs through the nail body 11 and the head of a nail 21, and the internal diameter that expansion piece 81 surrounds is equipped with core body 41 less than the diameter of through hole 31 in through hole 31, and the front end of core body 41 outwards freely stretches out from the head of a nail 21.The inboard holes that form wedge shapes of expansion piece 81, core body 41 ends are wedge shape, and end diameter is between the diameter of internal diameter that expansion piece 81 surrounds and through hole 31.Adopt human body absorbable polymer material, in the process of using, on skeleton A, offer with fixing head B earlier and think corresponding connecting hole, insert after the staple, give core body 41 applied thrusts, shown in Figure 13 C.Promote expansion piece 81 when core body 41 moves forward and outwards expand, cooperate fix bone A and fixing head B with the head of a nail 21.Extract core body 41 at last out, also can cut off the part that core body 41 is given prominence to, it is flushed with the head of a nail 2.
Present embodiment is to do further improvement on the basis of embodiment 11, shown in Figure 14 A, adds tooth 91 in the outside of expansion piece 81, and when expansion piece 81 outwards expanded, tooth 91 opened, and can further play fixed effect, as shown in Figure 14B.
Staple embodiment 13
Present embodiment is to do further improvement on the basis of embodiment 11, and shown in Figure 15 A, in through hole 31, the front end of core body 41 is provided with plunger tip 61, plunger tip 61 end diameters are between the diameter of internal diameter that expansion piece 81 surrounds and through hole 31.In the process of using, exert pressure for core body 41, its pushing tow plunger tip 61 is moved forward, plunger tip 61 compressing expansion pieces 81 expand, and are connected in expansion piece 81 inboards at last, make it can continue to keep swelling state, extraction core body 41 is finished fixing, shown in Figure 15 B.
Staple embodiment 14
Present embodiment is in conjunction with the embodiments 12 and the advantage of embodiment 13, is provided with plunger tip 61 and tooth 91 simultaneously, and shown in Figure 16 A, the structure after fixing is shown in Figure 16 B, and it is better firm fixed to have, and generally is used for the skeleton regulation operation higher to requirement of strength.
Staple embodiment 15
Present embodiment is the riveted type staple structure that adopts embodiment 2, by fixing head, does not directly fix two skeleton A and C.Shown in Figure 17 A, two skeleton A and C are carried out Primary Location, and adopt medical operation to bore and offer a connecting hole that passes skeleton C to A, insert staple, apply an outside pulling force for then core body 4.According to embodiment 2 described uses, the end of nail body 1 will expand, and cooperate the head of a nail to fix two skeleton A and C, draw disjunction neck 6 fractures of core 4 front ends, remove and expansion-head 5 isolating core bodys 4, expansion-head 5 is squeezed in the through hole of following closely in the body 13, shown in Figure 17 B.
Staple embodiment 16
Present embodiment is the riveted type staple structure that adopts embodiment 13, by fixing head, does not directly fix two skeleton A and C.Shown in Figure 18 A, two skeleton A and C are carried out Primary Location, and adopt giant to offer a connecting hole that passes skeleton C to A, insert staple, apply an inside thrust for then core body 41.According to embodiment 9 described uses, pushing tow plunger tip 61 moves forward, and plunger tip 61 compressing expansion pieces 81 expand, be connected in expansion piece 81 inboards at last, cooperate the head of a nail to fix two skeleton A and C, make it can continue to keep swelling state, extraction core body 41 is finished fixing, shown in Figure 18 B.
Claims (7)
1. the riveted type staple of a medical skeleton, include nail body (1) and be positioned at the head of a nail (2) of following closely body (1) front end, it is characterized in that following closely body (1) and adopt non-screw-in riveted structure, one through hole (3) runs through the whole nail body (1) and the head of a nail (2), in through hole (3), be equipped with core body (4), one end of core body (4) outwards freely stretches out from the head of a nail (2), and the other end is provided with the expansion-head (5) of slightly larger in diameter in through hole (3) internal diameter, and expansion-head (5) is positioned at the terminal outside of nail body (1); Described expansion-head (5) cross section is Y-shaped, and is provided with the weak portion (7) of distortion in the middle, and the expansion-head after the distortion (5) can directly be extracted out from through hole (3).
2. riveted type staple according to claim 1 is characterized in that following closely body (1) end and is made of at least 2 isolating expansion pieces (8).
3. riveted type staple according to claim 1 and 2 is characterized in that adopting rustless steel or titanium niobium metal material.
4. riveted type staple according to claim 1 and 2 is characterized in that adopting macromolecular material to make.
5. riveted type staple according to claim 1 and 2 is characterized in that adopting the human body absorbable material to make.
6. riveted type staple according to claim 1 and 2 is characterized in that following closely external surface and is distributed with tooth.
7. riveted type staple according to claim 1 and 2 is characterized in that following closely external surface and is distributed with matsurface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510118260XA CN100484487C (en) | 2005-04-12 | 2005-10-22 | Riveting nail for medical skelecton |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510034056 | 2005-04-12 | ||
| CN200510034056.X | 2005-04-12 | ||
| CNB200510118260XA CN100484487C (en) | 2005-04-12 | 2005-10-22 | Riveting nail for medical skelecton |
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| Publication Number | Publication Date |
|---|---|
| CN1785131A CN1785131A (en) | 2006-06-14 |
| CN100484487C true CN100484487C (en) | 2009-05-06 |
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| CNB200510118260XA Active CN100484487C (en) | 2005-04-12 | 2005-10-22 | Riveting nail for medical skelecton |
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| CN (1) | CN100484487C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11202674B2 (en) | 2018-04-03 | 2021-12-21 | Convergent Dental, Inc. | Laser system for surgical applications |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106606371B (en) * | 2015-10-24 | 2020-04-28 | 刘学奎 | Larynx function restoration system of implanting, staple and nail rifle |
| CN111658053A (en) * | 2020-07-02 | 2020-09-15 | 上海拓舜医疗科技有限公司 | Hemostatic buckle |
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|---|---|---|---|---|
| US2381050A (en) * | 1943-12-04 | 1945-08-07 | Mervyn G Hardinge | Fracture reducing device |
| CN1177918A (en) * | 1996-02-28 | 1998-04-01 | 卢茨·比德尔曼 | Bone screw |
| CN2436711Y (en) * | 2000-06-11 | 2001-06-27 | 张树春 | Energy-saving check series screw connection means |
| CN2582552Y (en) * | 2002-11-19 | 2003-10-29 | 武汉理工大学 | Biodegradable internal fitting bone screw and its mating screw tap and rotary screw |
| CN2794453Y (en) * | 2005-04-12 | 2006-07-12 | 梁巍 | Rigid fixing pull nail for medical fixing equipment for orthopedics |
| CN2862996Y (en) * | 2005-04-12 | 2007-01-31 | 梁巍 | Medical skeletal fixation nail |
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- 2005-10-22 CN CNB200510118260XA patent/CN100484487C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2381050A (en) * | 1943-12-04 | 1945-08-07 | Mervyn G Hardinge | Fracture reducing device |
| CN1177918A (en) * | 1996-02-28 | 1998-04-01 | 卢茨·比德尔曼 | Bone screw |
| CN2436711Y (en) * | 2000-06-11 | 2001-06-27 | 张树春 | Energy-saving check series screw connection means |
| CN2582552Y (en) * | 2002-11-19 | 2003-10-29 | 武汉理工大学 | Biodegradable internal fitting bone screw and its mating screw tap and rotary screw |
| CN2794453Y (en) * | 2005-04-12 | 2006-07-12 | 梁巍 | Rigid fixing pull nail for medical fixing equipment for orthopedics |
| CN2862996Y (en) * | 2005-04-12 | 2007-01-31 | 梁巍 | Medical skeletal fixation nail |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11202674B2 (en) | 2018-04-03 | 2021-12-21 | Convergent Dental, Inc. | Laser system for surgical applications |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1785131A (en) | 2006-06-14 |
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