CN207979739U

CN207979739U - A kind of Multi-function fracture setting guide forceps

Info

Publication number: CN207979739U
Application number: CN201720700581.9U
Authority: CN
Inventors: 翟延荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2018-10-19
Anticipated expiration: 2027-06-16

Abstract

The utility model is a kind of Multi-function fracture setting guide forceps, including centre pilot sleeve, the surface of the centre pilot sleeve is movably equipped with sliding sleeve, sliding sleeve is equipped with a pair of of caliper hinged end, centre pilot sleeve is equipped with a pair of jaw corresponding with caliper hinged end hinged end, it is respectively hinged with a caliper on two caliper hinged ends and constitutes caliper of taking down the exhibits, it is respectively hinged with jaw composition arc on two jaw hinged ends and encircles jaw, it is hinged by a public hinged end between caliper and jaw, caliper driving jaw is rotated centered on jaw hinged end to be encircled or is unfolded, determine the backbone cross-sectional view center of circle, compressive sleeve is equipped in centre pilot sleeve, centre pilot sleeve is equipped with fastener structures and is limited to compressive sleeve movement position.The utility model energy aids fracture resets, and solves the problems, such as that closed reduction is difficult in operation, and can be fixed temporarily, has many advantages, such as that easy to operate, operating time is short, soft tissue injury is small, bleeding is few, union is fast.

Description

A kind of Multi-function fracture setting guide forceps

Technical field

The utility model is related to medical instruments fields, and in particular to one kind being used for pilot hole, the doctor that aids fracture resets Treat instrument.

Background technology

Microinvasive Percutaneous Steel Plate technique for fixing (minimally invasive percutaneous plate Osteosynthesis, MIPPO) it is mainly characterized by fracture end and does not cut, indirect fracture closed reduction, it is percutaneously inserted into dissection lock Determine to fix in bone plate, utmostly protect fracture end periosteum soft tissue blood supply, be conducive to union, its advantage is that operation wound Hinder small, the advantages that bleeding is few, and union is fast, and Infective morbidity is few, shorten the hospital stays, but due to being indirect closed reduction, It cannot be effectively fixed temporarily after reduction of the fracture difficulty, the reduction of the fracture, the complication such as malunion, delayed union often occur. These problems limit the extensive use of MIPPO technologies.

The remote closing reduction of the fracture in recent years, robot reset the technologies such as long bone fracture and realize Minimally Invasive Surgery, especially mesh The three-dimensional of preceding prevalence（3D）The appearance of the technologies such as the imaging based navigation robot assisted reduction of the fracture provides some sides for Minimally Invasive Surgery Method, but due to equipment costliness, complicated for operation, fracture closed reduction position is bad, poor reliability, it can not be clinical universal.

Patent（Publication number：203138653U）A kind of reset guide pincers are disclosed, are used for pair, encircle pincers by two mutually The caliper of intersection is made up of shaft, and jaw is designed with caliper in Z-shaped, makes jaw and inner sleeve in the same plane, still, Such reduction forceps disadvantage has：1. the caliper structure of reduction forceps is not with control centre's structure in same plane, stability is bad；2. by Volume is larger before and after reasons in structure, reduction forceps, can not place reduction forceps in bone plate adjacent screw hole；3. jaw is in caliper Z-shaped design makes jaw in the same plane, easily deform when resetting stress with inner sleeve, influence the reduction of the fracture；4. fast Two inverted "L" shape buckle teeth of speed pressurization cylinder easily slip when buckling into stress in flat thread.

Utility model content

The purpose of the utility model is to overcome problems of the existing technology, provide a kind of Multi-function fracture setting guiding Pincers.

To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions：

The surface of a kind of Multi-function fracture setting guide forceps, including centre pilot sleeve, the centre pilot sleeve is movable Ground is equipped with sliding sleeve, and the sliding sleeve is equipped with a pair of of caliper hinged end, and the centre pilot sleeve is equipped with a pair of hinged with caliper Corresponding jaw hinged end is held, a caliper is respectively hinged on two caliper hinged ends and constitutes caliper of taking down the exhibits, two jaw hinged ends On be respectively hinged with a jaw constitute arc encircle jaw, be hinged on one by a public hinged end between the caliper and jaw of homonymy It rises, the caliper rotate centered on caliper hinged end when taking down the exhibits is with jaw hinged end by public hinged end driving jaw Heart rotation is encircled or is unfolded, jaw and centre pilot sleeve synergistic effect so that centre pilot sleeve is always between two jaws Bisector on, so that it is determined that the backbone cross-sectional view center of circle, compressive sleeve is movably equipped in the centre pilot sleeve, center is led Fastener structures are equipped with to sleeve to limit compressive sleeve movement position.

Further, two caliper hinged ends are along sliding sleeve central symmetry, and described two jaw hinged ends are in Heart pilot sleeve central symmetry, and the caliper hinged end is coplanar with jaw hinged end.

Further, the caliper hinged end, jaw hinged end and public hinged end are rotation auxiliary structure, the caliper one End is equipped with caliper bending section, and described jaw one end is equipped with jaw bending section, and the intersection of the caliper and caliper bending section rotates Ground is arranged on caliper hinged end, and the intersection of the jaw and jaw bending section is rotatably arranged on jaw hinged end, institute The one end for stating caliper bending section and jaw bending section is pivotally connected together by public hinged end.

Further, the jaw is that arc encircles structure, and longitudinal type trigone structure grooves are equipped on the inside of the segmental arc of jaw.

Further, the front end of the jaw is that taper collects structure, and the tip that structure is collected in taper is equipped with circular arc mistake Cross section.

Further, the caliper is structure as a whole with caliper bending section, and the jaw is integrated knot with jaw bending section Structure.

Further, the long rack and buckle teeth ring of mutual cooperation padlock are respectively equipped on two calipers.

Further, the fastener structures by coordinating block, bolt tooth and spring plate group at during the coordinating block bottom is fixed in On heart pilot sleeve, coordinating block top is equipped with groove, and the bolt tooth is arranged in the groove on coordinating block top, and the bolt tooth Coordinating block is rotationally connected by shaft, one end of the affixed spring leaf on the outside of the coordinating block, the spring leaf compresses bolt tooth Back of tooth portion and pre- thrust is applied to the back of tooth portion for compressing bolt tooth, the compressive sleeve outer surface is equipped with helical teeth screw thread, the bolt The tooth tip portion of tooth is matched with the helical teeth screw thread of compressive sleeve outer surface.

Further, the compressive sleeve upper end is equipped with flat key face, and T-type spanner, the T-type are combined on the flat key face Protruding block is equipped on the inside of spanner, the T-type spanner turns compressive sleeve by the cooperation in protruding block and flat key face and rotates.

The utility model has the beneficial effects that:

1. the reduction of the fracture of the utility model, which is oriented to wrench structure, agrees with " the tangent axis of backbone resets " theoretical, reduction of the fracture It is good reliable, it is easy to operate, solve the problems, such as that closed reduction is difficult in clinical operation, and can be fixed temporarily, operating time is short, Bleeding is few, and notch is small.

2. the reduction of the fracture guide forceps of the utility model can be with MIPPO（Microinvasive Percutaneous Steel Plate is fixed）Technology matches, art In do not cut fracture end closed reduction, fracture end soft tissue and periosteum injury are small, and union is fast, advantageously reduce infection hair It is raw.

3. the reduction of the fracture is fixed reliably, adjusted without repeatedly perspective in art, reduction doctor and the exposure of patient's ray, in principle As long as traction is abundant, fracture can reset good.

4. resetted using reduction of the fracture guide forceps, change the tradition dissection single fixed function of locking bone fracture plate, with dissection Locking bone fracture plate is to cooperate with replacement and fixation with reference to reduction of the fracture guide forceps.

5. reduction of the fracture guide forceps jaw, which is arc, encircles structure, jaw, which only requires more than femoral shaft semicircle, can fix bone It is dry, it is not required to all surround femoral shaft, place simply, wound is smaller, avoids damage to backbone depths important blood vessels nerve, safely may be used It leans on.

It is fixed with elasticity bridge joint 6. replacement and fixation is used, allows the appropriate fine motion of fracture end, stimulated osteanagenesis, be conducive to poroma It is formed.

7. need to only unclamp reduction forceps if you need to adjust dissection locking bone fracture plate position, conventional interim drilling fixation is avoided to connect Bone plate reduces the generation of iatrogenic fracture.

Description of the drawings

Fig. 1 is the main structure figure of the utility model；

Fig. 2 is the side block diagram of the utility model；

Fig. 3 is the overlooking structure figure of the utility model（Vertically）；

Fig. 4 is the drift angle axonometric three-dimensional view of the utility model；

Fig. 5 is the caliper three-dimensional structure diagram of the utility model；

Fig. 6 is the jaw three-dimensional structure diagram of the utility model；

Fig. 7 is the utility model jaw front end structure chart；

Fig. 8 is the utility model fastener structures schematic diagram；

Fig. 9 is the utility model compressive sleeve front view；

Figure 10 is the utility model T-type spanner stereogram；

Figure 11 is the utility model T-type spanner upward view；

Figure 12 is that quill geodesic structure figure is locked in the utility model.

Figure label explanation：1, centre pilot sleeve, 2, sliding sleeve, 3, caliper hinged end, 4, jaw hinged end, 5, caliper, 51, caliper bending section, 6, jaw, 61, jaw bending section, 62, longitudinal type trigone structure grooves, 63, taper collect structure, 64, circular arc Changeover portion, 7, public hinged end, 8, compressive sleeve, 81, flat key face, 9, coordinating block, 10, bolt tooth, 11, spring leaf, 12, helical teeth spiral shell Line, 13, long rack, 14, buckle teeth ring, 15, T-type spanner, 151, protruding block, 16, interior locking bushing.

Specific implementation mode

Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in detail.

Shown in Fig. 4, a kind of Multi-function fracture setting guide forceps, including centre pilot sleeve 1, the center The surface of pilot sleeve 1 is movably equipped with sliding sleeve 2, and the sliding sleeve 2 is equipped with a pair of of caliper hinged end 3, the centre pilot set Cylinder 1 is equipped with a pair of jaw corresponding with caliper hinged end 3 hinged end 4, and in the present embodiment, two caliper hinged ends 3 are in cunning With the center line symmetrical setting of sliding sleeve 2 on set 2, two jaw hinged ends 4 are on centre pilot sleeve 1 with centre pilot sleeve 1 Center line symmetrical setting, and two caliper hinged ends 3 and jaw hinged end 4 are coplanar with, each on two caliper hinged ends 3 It is hinged with a caliper 5 and constitutes caliper of taking down the exhibits, a jaw 6 composition arc is respectively hinged on two jaw hinged ends 4 and encircles jaw, together Hinged by a public hinged end 7 between the caliper 5 and jaw 6 of side, the caliper 5 is centered on caliper hinged end 3 It drives jaw 6 to rotate centered on jaw hinged end 4 by public hinged end 7 when rotation is taken down the exhibits to encircle or be unfolded, jaw 6 is in The synergistic effect of heart pilot sleeve 1 determines the backbone cross-sectional view center of circle, and compressive sleeve 8 is movably equipped in the centre pilot sleeve 1, Centre pilot sleeve 1 is equipped with fastener structures and is limited to 8 movement position of compressive sleeve.

Two caliper hinged ends 3 are along 2 central symmetry of sliding sleeve, and described two jaw hinged ends 4 are along centre pilot 1 central symmetry of sleeve, and the caliper hinged end 3 is coplanar with jaw hinged end 4.

Shown in referring to figure 5 and figure 6, the caliper hinged end 3, jaw hinged end 4 and public hinged end 7 are revolute pair knot Structure, 5 one end of the caliper are equipped with caliper bending section 51, and 6 one end of the jaw is equipped with jaw bending section 61, the caliper 5 and pincers The intersection of body bending section 51 is rotatably arranged on caliper hinged end 3, and the jaw 6 and the intersection of jaw bending section 61 turn It is arranged dynamicly on jaw hinged end 4, one end of the caliper bending section 51 and jaw bending section 61 passes through 7 turns of public hinged end It links together dynamicly.

With reference to shown in Fig. 7, the jaw 6 is that arc encircles structure, and longitudinal type trigone structure grooves are equipped on the inside of the segmental arc of jaw 6 62, can be anti-skidding and reduce soft tissue injury.

The front end of the jaw 6 is that taper collects structure 63, and the tip that structure is collected in taper is equipped with arc transition section 64, Taper collects structure and reduction forceps jaw 6 is facilitated to be pierced into the outer soft tissue of bone, and arc transition section 64 is easy to slip over bone rough surface, prevent Only 6 tip of jaw is caught in bone, utmostly protects bone and surrounding soft tissue.

The caliper 5 is structure as a whole with caliper bending section 51, and the jaw 6 is structure as a whole with jaw bending section 61.

The long rack 13 and buckle teeth ring 14 of mutual cooperation padlock are respectively equipped on two calipers 5.

With reference to shown in Fig. 8, the fastener structures are made of coordinating block 9, bolt tooth 10 and spring leaf 11,9 bottom of the coordinating block Portion is fixed on centre pilot sleeve 1, and 9 top of coordinating block is equipped with groove, and the groove on 9 top of coordinating block is arranged in the bolt tooth 10 It is interior, and the bolt tooth 10 rotationally connects coordinating block by shaft, it is described in the 9 affixed spring leaf 11 in outside of the coordinating block One end of spring leaf 11 compresses the back of tooth portion of bolt tooth 10 and applies pre- thrust, the compressive sleeve to the back of tooth portion for compressing bolt tooth 10 8 outer surfaces are equipped with helical teeth screw thread 12, and the tooth tip portion of the bolt tooth 10 is matched with the helical teeth screw thread 12 of 8 outer surface of compressive sleeve.

With reference to shown in Fig. 9 to Figure 11,8 upper end of the compressive sleeve is equipped with flat key face 81, and T is combined on the flat key face 81 Type spanner 15,15 inside of the T-type spanner are equipped with protruding block 151, and the T-type spanner 15 passes through protruding block 151 and flat key face 81 Cooperation turn the rotation of compressive sleeve 8, also set up one in the present embodiment for the interior locking bushing 16 that coordinates with bone plate, Referring to Fig.1 shown in 2,16 upper end of interior locking bushing is again provided with flat key face, and 16 lower end of interior locking bushing is taper, taper Surface is matched equipped with thread surface with the lock hole screw thread on bone plate, in use, interior locking bushing 16 is screwed into bone plate Lock hole screw thread is fixed as an overall structure, and during being turned by T-type spanner 15, lower end positioning pushes against to be connect compressive sleeve 8 Bone plate.

The utility model process and principle

Specifically used process is：Dorsal position, art area routine disinfection drape, C arm machine perspective is taken to determine after patient's anesthesia onset Fracture site is respectively about 4cm notch in fracture proximal end, distal end, and incision skin is subcutaneous, detaches muscle layer, skin is established outside periosteum Locking dissection locking bone fracture plate is inserted by lower tunnel from hypodermic tunnel, and locking bushing 16 in two pieces is respectively installed at both ends, then every Reduction forceps are placed at a interior locking bushing 16, first two reduction forceps of tightening fracture distal end, screwed using T-type spanner 15 and quickly added Pressure cylinder 8, traction fracture distal end, then the reduction forceps of proximal end two are installed, the same tightening fracture reduction forceps of proximal end two are pulled using T-type Hand 15 screws Quick-pressing cylinder 8, and nearly distal end backbone of fracturing at this time is parallel to bone plate, in the case where not cutting fracture end, leads to Cross reduction forceps, dissection locking bone fracture plate, backbone triple interaction, fracture fixed in no any screw Reset is fixed temporarily firm.After C arm machine perspective checks that reduction of the fracture situation and dissection locking bone fracture plate position are good, from interior locking Sleeve 16 drills, and interior locking bushing 16 is then back-outed from compressive sleeve 8, in 8 internal fixation screw of compressive sleeve, avoids spiral shell Nail slides into muscle depths, leads to the situation of fixed difficulty, and screw finally rinses notch by the backbone center of circle at this time, closes notch.

Principle is：The reset wrench structure of the utility model can be in any state, centre pilot sleeve 1, compressive sleeve 8 and interior All on the bisector of jaw 6, bone plate lock hole is threaded into locking bushing 16 perpendicular to synthetism plate axis, bone plate lock hole When interior locking bushing 16, centre pilot sleeve 1, compressive sleeve 8 and interior locking bushing 16, perpendicular to synthetism plate axis, reduction forceps Backbone is clamped in encircling type, and 16 extended line of interior locking bushing is screwed compressive sleeve 8 and pull to backbone and connect by the backbone cross section center of circle Bone plate, when backbone is contacted with bone plate, this backbone phase cross circular section is tangential on bone plate, and 2 points determine a straight line, work as bone Folding proximal end, distal end is each fixes two reduction forceps, and round long diaphysis axis is in spatially flat with dissection locking bone fracture plate long axis Row relationship, fracture can reset.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims

1. a kind of Multi-function fracture setting guide forceps, including centre pilot sleeve（1）, which is characterized in that the centre pilot set Cylinder（1）Surface movably be equipped with sliding sleeve（2）, the sliding sleeve（2）It is equipped with a pair of of caliper hinged end（3）, the centre pilot Sleeve（1）It is equipped with a pair of and caliper hinged end（3）Corresponding jaw hinged end（4）, two caliper hinged ends（3）It is upper each hinged There is a caliper（5）Composition is taken down the exhibits caliper, two jaw hinged ends（4）On be respectively hinged with a jaw（6）It constitutes arc and encircles jaw, The caliper of homonymy（5）With jaw（6）Between pass through a public hinged end（7）It is hinged, the caliper（5）It is hinged with caliper End（3）Centered on rotation when taking down the exhibits by public hinged end（7）Drive jaw（6）With jaw hinged end（4）Centered on swivel becket It embraces or is unfolded so that centre pilot sleeve（1）Always in two jaws（6）Between bisector on, so that it is determined that backbone cross-sectional view The center of circle, the centre pilot sleeve（1）Inside movably it is equipped with compressive sleeve（8）, centre pilot sleeve（1）It is equipped with fastener structures To compressive sleeve（8）Movement position limits.

2. Multi-function fracture setting guide forceps according to claim 1, which is characterized in that two caliper hinged ends （3）Along sliding sleeve（2）Central symmetry, described two jaw hinged ends（4）Along centre pilot sleeve（1）Central symmetry, and institute State caliper hinged end（3）With jaw hinged end（4）It is coplanar with.

3. Multi-function fracture setting guide forceps according to claim 1 or 2, which is characterized in that the caliper hinged end （3）, jaw hinged end（4）With public hinged end（7）To rotate auxiliary structure, the caliper（5）One end is equipped with caliper bending section （51）, the jaw（6）One end is equipped with jaw bending section（61）, the caliper（5）With caliper bending section（51）Intersection turn It is arranged dynamicly in caliper hinged end（3）On, the jaw（6）With jaw bending section（61）Intersection be rotatably arranged at jaw Hinged end（4）On, the caliper bending section（51）With jaw bending section（61）One end pass through public hinged end（7）Rotationally connect It is connected together.

4. Multi-function fracture setting guide forceps according to claim 3, which is characterized in that the jaw（6）For arc ring Embrace structure, jaw（6）Segmental arc on the inside of be equipped with longitudinal type trigone structure grooves（62）.

5. Multi-function fracture setting guide forceps according to claim 3, which is characterized in that the jaw（6）Front end be Taper collects structure（63）, the tip that structure is collected in taper is equipped with arc transition section（64）.

6. Multi-function fracture setting guide forceps according to claim 3, which is characterized in that the caliper（5）It is rolled over caliper Curved segment（51）It is structure as a whole, the jaw（6）With jaw bending section（61）It is structure as a whole.

7. Multi-function fracture setting guide forceps according to claim 3, which is characterized in that two calipers（5）On It is respectively equipped with the long rack of mutual cooperation padlock（13）With buckle teeth ring（14）.

8. Multi-function fracture setting guide forceps according to claim 1, which is characterized in that the fastener structures are by coordinating block （9）, bolt tooth（10）And spring leaf（11）Composition, the coordinating block（9）Bottom is fixed in centre pilot sleeve（1）On, coordinating block （9）Top is equipped with groove, the bolt tooth（10）It is arranged in coordinating block（9）In the groove on top, and the bolt tooth（10）Pass through Shaft rotationally connects coordinating block, in the coordinating block（9）The affixed spring leaf in outside（11）, the spring leaf（11）A side pressure Tight bolt tooth（10）Back of tooth portion and to compress bolt tooth（10）Back of tooth portion apply pre- thrust, the compressive sleeve（8）Outer surface is set There is helical teeth screw thread（12）, the bolt tooth（10）Tooth tip portion and compressive sleeve（8）The helical teeth screw thread of outer surface（12）It matches.

9. the Multi-function fracture setting guide forceps according to claim 1 or 8, which is characterized in that the compressive sleeve（8）On End is equipped with flat key face（81）, the flat key face（81）On be combined with T-type spanner（15）, the T-type spanner（15）Inside is equipped with convex It is bittiness（151）, the T-type spanner（15）Pass through protruding block（151）With flat key face（81）Cooperation turn compressive sleeve（8）Rotation Turn.