CN205433858U - Fixed lock of fracture skin external - Google Patents
Fixed lock of fracture skin external Download PDFInfo
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- CN205433858U CN205433858U CN201521067352.5U CN201521067352U CN205433858U CN 205433858 U CN205433858 U CN 205433858U CN 201521067352 U CN201521067352 U CN 201521067352U CN 205433858 U CN205433858 U CN 205433858U
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Abstract
Fixed lock of fracture skin external, its characteristic includes interim fixer of first aid and minimal access surgery fixer, the interim fixer of first aid includes that skin external fixes mainboard, thread tightening needle and thread tightening needle nut, the minimal access surgery fixer includes fixed mainboard of skin external and locking screw to the pad applies the protection pad layer between fixed mainboard of skin external and skin when reaching the operation. Adopt the fixed lock of skin external can avoid locking plate internal fixation, intramedullary nail fixed not enough, fixed locking operation is favorable to postoperative rehabilitation and union, and skin external is fixed, and the lock is placed in skin external, after the union, can remove in the outpatient service and to be in hospital, has made things convenient for the patient to seek medical advice, has effectively reduced the hospitalization cost, especially is suitable for the emergent rescue of great natural disasters or wartime and uses.
Description
Technical field
This utility model relates to a kind of orthopedic medical device, particularly a kind of fracture skin extenal fixation locking utensil.
Background technology
Operation fixing for extremity fracture, at present frequently be in steel plate screw fixing, exterior fixation bracket fix and in intramedullary pin fixing.When fixing in using steel plate screw, in order to appear fracture end completely and place steel plate, generally requiring cleavage fracture end soft tissue on a large scale, operation wound is bigger, and compression steel plate is close to surface of bone and can be caused the ischemia of periosteum under steel plate, these all can increase the risk of nonunion and infection.Along with popularization and the appearance of locking steel plate of Minimally Invasive Surgery theory, use little otch to be percutaneously inserted locking steel plate and carry out the technology of Fracture internal fixaiion and apply more and more extensive clinically.Compared to the Plate internal fixiation being close to surface of bone, the blood supply of fracture end is disturbed less by this Plate internal fixiation technology that is percutaneously inserted, and is provided that more preferable union of fracture biological environment, it is thus achieved that good curative effect, but in percutaneous plate body, still suffer from the problems such as higher infection, soft tissue excitation.And, after union of fracture, considerable patient requests removes internal fixation steel plate, the problem facing again hospitalisation for surgery.After union of fracture, in removing when fixing intramedullary pin or locking steel plate: intramedullary pin inserted and deeply causes nail afterbody to be covered by a large amount of callus, has to when removing dig bone at entry point, causes the Cranial defect that entry point is excessive；Lock screw is engaged too tight or screw tail end shrinkage pool stripped thread with steel plate female thread, causes screwdriver to skid at screw tail end, it is impossible to lock screw of back-outing, or the fracture of screw tail end, causes the screw nubbin in sclerotin to take out difficulty etc..The External technique of fracture has a some superiority in reply disaster, the interim first aid of wartime severely injured personnel, but existing exterior fixation bracket is because the many reason of complex structural designs parts exists two big shortcomings: one, exterior fixation bracket poor stability；Two, exterior fixation bracket comfortableness is poor, and its configuration is more too fat to move, and time movable, exterior fixation bracket is easily subject to clash into, and influences whether its structural stability.
Summary of the invention
The defect that the technical problems to be solved in the utility model exists for fixing in fixing in existing steel plate screw, intramedullary pin and exterior fixation bracket, in urgent rescue, particularly lack the technical problem for interim quick fixer tool of fracturing, there is provided one first quickly to rescue at first aid scene, the utensil that operation is fixing can have been continued again after the wounded are transferred to operating room.
Fracture skin extenal fixation lock, its feature includes first aid temporary fasteners and Minimally Invasive Surgery holder, described first aid temporary fasteners includes skin extenal fixation mainboard, protective pad layer, be screwed pin and the pin nut that is screwed, described Minimally Invasive Surgery holder includes skin extenal fixation mainboard and lock screw, and during operation, pad spreads on the protective pad layer between skin extenal fixation mainboard and skin.
Tapped screw hole and the most tapped kirschner pin hole are set on described skin extenal fixation mainboard.
The edge shape of described protective pad layer is corresponding with skin extenal fixation mainboard, and protective pad layer is provided with the through hole corresponding with the screw hole fixing mainboard and kirschner pin hole.
Described lock screw head is sharp cone distal, and head has sub-thread or bifilar threaded extension to middle and upper part, and caudad is the most threaded, and afterbody has screw thread, and upper rear is Flos Mume or inner hexagonal hole.
The needle section that is screwed is sharp cone distal, and head has sub-thread or bifilar threaded extension to middle and lower part, and middle part and afterbody are non-threaded cylinder.
The described pin nut that is screwed is inverted cone, bottom to cone horizontal 2/3 is the screw thread suitable with described skin extenal fixation mainboard screw hole, bottom is longitudinal seam through centrage to cone horizontal 2/3, and head is outer-hexagonal nut, and center cavity is the through hole suitable with the described pin that is screwed.
Percutaneous fixation lockplate system involved by this utility model has good economic results in society: using skin extenal fixation lockplate system can avoid fixing, the deficiency of Intramedullary nailing, exterior fixation bracket in locking steel plate, the operation of its Wicresoft is conducive to postoperative rehabilitation and union of fracture.And percutaneous fixation master determines plate and is positioned over outside skin, after union of fracture, need not be in hospital outpatient service is the most dismountable, facilitate patient and seek medical advice, effectively reduce the emergent rescue of medical expense, especially suitable disaster or wartime and use.
Accompanying drawing explanation
Fig. 1 is upper limb metaphysis skin extenal fixation mainboard structure schematic diagram of the present utility model.
Fig. 2 is that the operation of Fig. 1 uses view.
Fig. 3 is femur skin extenal fixation mainboard structure schematic diagram of the present utility model.
Fig. 4 is the use view of Fig. 3.
Fig. 5 is upper limb of the present utility model straight type skin extenal fixation mainboard structure schematic diagram.
Fig. 6 is the use view of Fig. 5.
Fig. 7 is upper limb S type skin extenal fixation mainboard structure schematic diagram of the present utility model.
Fig. 8 is the use view of Fig. 7.
Fig. 9 is ossiculum of the present utility model straight type skin extenal fixation mainboard structure schematic diagram.
Figure 10 is the use view of Fig. 9.
Figure 11 is tibia skin extenal fixation mainboard structure schematic diagram of the present utility model.
Figure 12 is the use view of Figure 11.
Figure 13 is lock screw structure chart of the present utility model.
Figure 14 is the B enlarged drawing of Fig. 1.
Detailed description of the invention
Referring to shown in Fig. 1～Figure 14, fracture skin extenal fixation lock includes skin extenal fixation mainboard 1, lock screw 2, screw hole 3, kirschner pin hole 4, the pin 5 that is screwed, the pin nut 6 that is screwed, protective pad layer 7, Kirschner wire 9.
Skin extenal fixation mainboard 1 is according to the anatomic form of each position skeleton, soft tissue and nervus vasculairs beam ratio neighbour's relation in conjunction with local, configuration design and dissection matched, skin extenal fixation mainboard 1 is provided with the kirschner pin hole 4 without locking screw thread and the screw hole 3 of locking screw thread.
Protective pad layer 7 is pasted onto the skin extenal fixation mainboard 1 side by skin 8, and its edge shape is corresponding with skin extenal fixation mainboard 1, and protective pad layer 7 has kirschner pin hole and the clavicle nail nail being provided without locking screw thread.The Main Function of protective pad layer is to be protected local skin when carrying out physical operation, reserve suitable gap for skin extenal fixation mainboard and local skin.
Lock screw 2 head is sharp cone distal 21, extends to middle and upper part with sub-thread or bifilar screw thread 22, and caudad is the most threaded, and afterbody has screw thread 24, afterbody 25 to be arranged above Flos Mume or inner hexagonal hole；Lock screw head and have threaded portion to primarily serve the purpose of to shoot human body bone and hold is provided, caudad is the most threaded to be reduced in art and the postoperative excitation cutting to soft tissue, the Main Function of tailing screw flight is to carry out snap-lock with skin extenal fixation mainboard, the Flos Mume of upper rear or the holding interface that inner hexagonal hole structure is related tool.
Pin 5 end that is screwed is sharp cone distal, end has sub-thread or bifilar threaded extension to middle and lower part, middle part and afterbody are non-threaded cylinder, primarily serve the purpose of and shoot human body bone and provide hold, and middle part and the most threaded structure of afterbody can reduce in art and the postoperative excitation to soft tissue cuts.
Be screwed pin nut 6 for inverted cone, bottom is at cone horizontal 2/3 being and the suitable screw thread of screw hole of described skin extenal fixation mainboard, bottom is longitudinal crack through centrage to cone horizontal 2/3, and center cavity is the through hole suitable with the described pin that is screwed, and is arranged above outer-hexagonal.
The center hole of pin nut 6 of being screwed is designed as the percutaneous pin 5 that is screwed and provides operating walk way, the waist screw thread Main Function of pin nut 6 of being screwed is to carry out snap-lock with skin extenal fixation mainboard 1, being screwed bottom pin nut has line style cutting to extend in these parts the crack at upper 2/3 to primarily serve the purpose of and produce the holding gathering chucking power realization to the pin 5 that is screwed during locking, and on the pin nut 6 that is screwed, outer-hexagonal structure is the holding interface of related tool.
Described skin outer stationary plates, lock screw, the nail that is screwed, fixing oncomelania cap can be selected for rustless steel or titanium alloy Steel material, protective pad layer and medical elastic material.
When using the fixing fracture of fracture skin extenal fixation lock, need not too much peel off fracture end and adjacent parts, a little otch only by fracture local carries out the reduction of the fracture.
Embodiment 1: under emergency situations, as a example by humerus skin extenal fixation mainboard, referring to Fig. 1, shown in 2.
Be screwed under aseptic technique pin 5, be screwed the pin nut 6 interim fixing use when emergency call salving situation: for several sections of fracture, by distalmost end bone piece and the most proximal end bone piece of the fixing fracture of lock screw 3, middle bone piece can be used the pin 5 that is screwed, the pin nut 6 that is screwed dynamically is fixed, concrete operation step is: the first step, the reduction of the fracture, metaphyseal segment for closure simple types is fractured, including walking crosswise, oblique, spiral fracture, skin 3cm～4cm is cut in fracture 10 portion of end office (EO), the anatomical reduction of fracture end is carried out after the soft tissue of cleaning impaction fracture end and hematoma, the loaded reset maintaining fracture 10 ends with point-type reset forceps fixes fracture end with 1～2 piece of lag screw or Kirschner wire 9；Second step, lay protective pad layer 7 and the skin extenal fixation mainboard 1 of skin extenal fixation lock, in order to increase fixing stability, protective pad layer 7 is adjacent to skin, skin extenal fixation mainboard 1 is close to protective pad layer 7, use Kirschner wire 9, by the kirschner pin hole 4 on skin extenal fixation mainboard 1, mainboard is fixed on relevant position if desired, it is ensured that to reserve corresponding hole count (upper limb non-weight bearing ossiculum, upper limb heavy burden ossiculum and pelvis, lower limb non-weight bearing ossiculum, the loading by lower limbs ossiculum recommendation every side of fracture end are reserved screw hole and be respectively 3 holes, 4 holes, 4 holes, 5 holes) in fracture end both sides；3rd step, near-end and far-end set up fixing passage, avoid fracturing the near-end of 10 ends and the operation sharp knife skin perforate of far-end locking screw hole position at skin extenal fixation mainboard 1, sleeve is used to avoid skin operating through surface of bone, then drill bit pierces along nail sleeve, penetrate cortical bone: the 4th step, near-end and position, far-end occasional passage hole screw in fixing pin nut 6 but do not lock, being pierced through the pin 5 that is screwed to unilateral or contralateral cortex by the center hole of fixing pin nut 6, be then locked pin nut 6；5th step, stage casing free bone is folded into Mobile state fix, screw in fixing pin nut 6 by the position, hole of floating bone block corresponding on skin extenal fixation mainboard 1 but do not lock, the pin 5 that is screwed is pierced to unilateral or contralateral cortex by the center hole of fixing pin nut 6, fixing pin nut 6, to being satisfied with position, is then locked by the holding pin 5 free fracture site of lifting that is screwed；6th step, checks cleaning, through X-ray examination after the assembling of all accessories is complete, confirms that protective pad layer under steel plate is removed after meeting fixed standard by fixing mainboard 1 and screw hole 3 position and length；7th step, proceeds to hospital, lays lock screw in mode described in embodiment 2 and reinforces.)
The application that humeral fracture is fixedly locked is summarized as follows by embodiment 2 skin extenal fixation lock of fracturing, referring to Fig. 1, shown in 2.
Under aseptic technique, step is laid in the locking of skin extenal fixation mainboard: the first step, the reduction of the fracture, metaphyseal segment for closure simple types is fractured, including walking crosswise, oblique, spiral fracture, skin 3cm～4cm is cut in fracture 10 portion of end office (EO), carry out the anatomical reduction of fracture end after the soft tissue of cleaning impaction fracture end and hematoma, maintain with point-type reset forceps the loaded reset of fracture end to fix fracture end with 1～2 piece of lag screw or Kirschner wire 9；Second step, lay protective pad layer 7 and the skin extenal fixation mainboard 1 of skin extenal fixation lock, for increasing fixing stability, protective pad layer 7 is adjacent to skin, skin extenal fixation mainboard 1 is close to protective pad layer 7, use Kirschner wire 9, by the kirschner pin hole 4 on skin extenal fixation mainboard, skin extenal fixation mainboard 1 is fixed on relevant position if desired, it is ensured that to reserve corresponding hole count (upper limb non-weight bearing bone, upper limb heavy burden bone and pelvis, lower limb non-weight bearing bone, the loading by lower limbs bone recommendation every side of fracture end are reserved screw hole and be respectively 3 holes, 4 holes, 4 holes, 5 holes) at fracture 10 two ends；3rd step, set up fixing passage, avoid both sides screw hole 3 the operation sharp knife skin perforate of fracture end at skin extenal fixation mainboard 1, use sleeve to avoid skin operating through surface of bone, then drill bit pierces along nail sleeve, until penetrating contralateral cortex bone；4th step, measures lock screw 2 length and also lays lock screw 2, use specific purpose tool measure this position, hole until the length of offside cortical bone, the lock screw 2 of corresponding length is screwed in locking；5th step, checks cleaning, through X-ray examination after the assembling of all accessories is complete, confirms that protective pad layer under steel plate is removed after meeting fixed standard by fixing mainboard 1 and lock screw 2 position and length.
For femur, shown in forearm long bone of limbs Fig. 3,4,5,6,11,12 and shown in ossiculum Fig. 7～Figure 10 such as toe metacarpal bone, clavicle, basin bone, the using method of skin extenal fixation mainboard uses the method described in embodiment 1 and 2 to lay percutaneous fixation mainboard.
For Guan Bi comminuted fracture, use closed reduction, manual traction is carried out under the perspective monitoring of C arm, correct fracture end cripetura and rotation displacement, dial fracture end with Kirschner wire percutaneous sled if desired and obtain the functional reduction of fracture, then use ibid method described in embodiment 1 and 2 to lay skin extenal fixation lock.
For open fracture, first carrying out emergency treatment debridement thoroughly, then reset fracture end, reset requires and fixing step is consistent with described closed fracture, then, uses the method described in embodiment 1 and 2 to carry out the locking of skin extenal fixation mainboard fixing.
Claims (6)
1. fracture skin extenal fixation lock, its feature includes first aid temporary fasteners and Minimally Invasive Surgery holder, described first aid temporary fasteners includes skin extenal fixation mainboard, be screwed pin and the pin nut that is screwed, described Minimally Invasive Surgery holder includes skin extenal fixation mainboard and lock screw, and during operation, pad spreads on the protective pad layer between skin extenal fixation mainboard and skin.
The most according to claim 1, fracture skin extenal fixation lock, is characterized in that arranging on described skin extenal fixation mainboard (1) tapped screw hole (3) and the most tapped kirschner pin hole (4).
Fracture skin extenal fixation lock the most according to claim 1, it is characterized in that the edge shape of described protective pad layer (7) is corresponding with skin extenal fixation mainboard (1), protective pad layer is provided with the through hole corresponding with the screw hole (3) fixing mainboard (1) and kirschner pin hole (4).
Fracture skin extenal fixation lock the most according to claim 1, it is characterized in that described lock screw (2) head is sharp cone distal (21), head has sub-thread or bifilar screw thread (22) to extend to middle and upper part, caudad is the most threaded, afterbody has screw thread (24), afterbody (25) to be arranged above Flos Mume or inner hexagonal hole.
The most according to claim 1, fracture skin extenal fixation lock, pin (5) head that it is characterized in that being screwed is sharp cone distal, and head has sub-thread or bifilar threaded extension to middle and lower part, and middle part and afterbody are non-threaded cylinder.
Fracture skin extenal fixation lock the most according to claim 1, the pin nut (6) that is screwed described in it is characterized in that is inverted cone, bottom to cone horizontal 2/3 is the screw thread suitable with described skin extenal fixation mainboard screw hole (3), bottom is longitudinal crack through centrage to cone horizontal 2/3, center cavity is the through hole suitable with the described pin that is screwed (5), is arranged above outer-hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067352.5U CN205433858U (en) | 2015-12-21 | 2015-12-21 | Fixed lock of fracture skin external |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067352.5U CN205433858U (en) | 2015-12-21 | 2015-12-21 | Fixed lock of fracture skin external |
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| Publication Number | Publication Date |
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| CN205433858U true CN205433858U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521067352.5U Active CN205433858U (en) | 2015-12-21 | 2015-12-21 | Fixed lock of fracture skin external |
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| CN (1) | CN205433858U (en) |
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