CN209301266U - It is a kind of freely to adjust pelvis external fixed mount - Google Patents

It is a kind of freely to adjust pelvis external fixed mount Download PDF

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Publication number
CN209301266U
CN209301266U CN201821740206.8U CN201821740206U CN209301266U CN 209301266 U CN209301266 U CN 209301266U CN 201821740206 U CN201821740206 U CN 201821740206U CN 209301266 U CN209301266 U CN 209301266U
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CN
China
Prior art keywords
rod
fixed mount
external fixed
adjustable
freely adjust
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CN201821740206.8U
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Chinese (zh)
Inventor
王旭鹏
许洪涛
王建庭
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TIANJIN JINXINGDA INDUSTRIAL Co Ltd
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TIANJIN JINXINGDA INDUSTRIAL Co Ltd
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Priority to CN201821740206.8U priority Critical patent/CN209301266U/en
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Abstract

Pelvis external fixed mount is freely adjusted the utility model discloses a kind of, belong to orthopedic medical device technical field, the pelvis external fixed mount that freely adjusts includes sequentially connected at least 3 section adjustable rods, adjustable rod includes adjusting sleeve and being threaded in two adjusting screw rods for adjusting sleeve two sides, adjusts and is provided with operation structure in the middle part of sleeve;It is connected between the relative adjustment screw rod of adjacent two adjustable rod by lockable universal joint;Extension rod is connected with by lockable universal ball end structure on the adjusting screw rod of the outer end of the adjustable rod of two sides, the fixture block for connecting spicule is provided on extension rod.The utility model can realize length adjustment by more piece adjustable rod, multi-angle regulation can be realized by lockable universal joint and universal ball end structure, it is easy to use, it can guarantee that a specification is multi-purpose, the fixed fracture portions of spicule need to only be cooperated at the extension rod of two sides, it threads a needle less, preferable therapeutic effect can be played.

Description

It is a kind of freely to adjust pelvis external fixed mount
Technical field
The utility model relates to orthopedic medical device technical field, particularly relate to a kind of freely adjust pelvis external fixed mount.
Background technique
Os pelvicum fracture is mostly High energy trauma, often merges blood vessel, nerve and visceral injury, and os pelvicum fracture accounts for the 1- of whole body fracture 2%, and pelvis unstable fracture merges the death rate of big bleeding between 20-50%.There is reported in literature, wound early stage is applied Expopexy makes the Resuscitation Period death rate drop to 8% from 22%.The pelvis external fixator for restoring of clinical application at present, is adjusting There is limitation in multi-angle and entire length, length specification is complicated, cannot a specification it is multi-purpose, when use, is also extremely inconvenient, Flexibility ratio has significant limitation, not only threads a needle more, inconvenient, and brings many difficulties to functional training.
Utility model content
It is easy to use freely to adjust the technical problem to be solved by the present invention is to provide a kind of multi-angle and length are adjustable Save pelvis external fixed mount.
In order to solve the above technical problems, the utility model offer technical solution is as follows:
It is a kind of freely to adjust pelvis external fixed mount, including sequentially connected at least 3 section adjustable rods, in which:
The adjustable rod includes adjusting sleeve and being threaded in the two of the adjusting sleeve two sides to adjust spiral shells Bar is provided with operation structure in the middle part of the adjusting sleeve;
It is connected between the relative adjustment screw rod of adjacent two adjustable rod by lockable universal joint;
It is connected on the adjusting screw rod of the outer end of the adjustable rod of two sides by lockable universal ball end structure Extension rod is provided with the fixture block for connecting spicule on the extension rod.
Further, the operation structure is successively four rectangular operation planars connected vertically, and/or, square crossing Two through holes being arranged.
Further, the internal screw thread for adjusting sleeve is double thread.
Further, the hand of spiral of two adjusting screw rods of the adjustable rod is opposite.
Further, the universal joint includes two orthogonal living hinges, and each living hinge includes U-lag and is located at The articulated shaft of articulated shaft in the U-lag, described two orthogonal living hinges passes through the orthogonal connection of a link block, one of them The articulated shaft of living hinge is screw bolt and nut fit structure, and the screw bolt and nut sinks to being arranged in corresponding living hinge U-lag two sidewalls in.
Further, the universal ball end structure includes connector, U-shaped part and annular clamping lock, in which:
The connector includes spherical head and the square head portion with the spherical head integrally connected;
The U-shaped part is fixedly connected on the end of adjusting screw rod, and the spherical head is connected to institute by the annular clamping lock It states in U-shaped part, the square head portion stretches out the annular clamping lock and the connection extension rod;
It is provided with the pressure pad for squeezing the spherical head between the U-shaped part and spherical head and is used for the pressure Pad the cam lever of pressure.
Further, the handle hole for driving the cam lever rotation is provided on the cam lever.
Further, the extension rod is set in the square head portion and is fixed by pin.
Further, hemispherical groove is provided on the distal face of the U-shaped part;Annular clamping lock inside and the U The corresponding position of the distal face of shape part is provided with aperture, and spring is provided in the aperture, and the end of the spring is provided with The ball of the hemispherical groove can be rolled into.
Further, the fixture block includes the threaded screw body in distal end, and the is sequentially installed in the screw body One annular intermediate plate, the second annular intermediate plate, crimp sleeve and nut, in which:
The axial middle part of the screw body is provided with the open-work for accommodating spicule;
It is provided on the outside of the screw body for clamping between the first annular intermediate plate and the second annular intermediate plate The clamp groove of the extension rod.
The utility model has the following beneficial effects:
The utility model freely adjusts pelvis external fixed mount, can realize length adjustment by more piece adjustable rod, Multi-angle regulation can be realized by lockable universal joint and universal ball end structure, it is easy to use, it can guarantee that a specification is multi-purpose, only The fixed fracture portions of spicule need to be cooperated at the extension rod of two sides, thread a needle less, preferable therapeutic effect can be played, reduce iatrogenic Damage, shorten operating time, mitigate the pain to be born of patient, make operation fast, be safely completed.The utility model is applicable in In treating os pelvicum fracture in bone surgery, there is good fracture to be connected and fixed effect;And the utility model can adapt to and The case where realizing spicule multi-angle inserting needle, accordingly can be applied to pelvis complicated fracture.
Detailed description of the invention
Fig. 1 is the separate structure schematic diagram for freely adjusting pelvis external fixed mount of the utility model;
Fig. 2 is the structural schematic diagram of adjustable rod in Fig. 1;
Fig. 3 is the enlarged structure schematic diagram of part A in Fig. 2.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing And specific embodiment is described in detail.
The utility model provide it is a kind of freely adjust pelvis external fixed mount, as shown in Figs. 1-2, including it is sequentially connected at least 3 section adjustable rods 11,12,13, in which:
Adjustable rod 11 includes two adjusting screw rods for adjusting sleeve 111 and being threaded in adjusting 111 two sides of sleeve 112,113;Adjustable rod 12 includes two adjusting screw rods for adjusting sleeve 121 and being threaded in adjusting 121 two sides of sleeve 122,123;Adjustable rod 13 includes two adjusting screw rods for adjusting sleeve 131 and being threaded in adjusting 131 two sides of sleeve 132,133;The middle part for adjusting sleeve 111,121,131 is provided with the operation structure 114,124,134 for instrumentation;Consider It is adjustable to the adjustable rod this body length and adjustable extent is larger, therefore usually 3 sections of setting are just able to satisfy various situations substantially Under use demand;
Pass through (between i.e. 113 and 122, between 123 and 132) between the relative adjustment screw rod of adjacent two adjustable rod Lockable universal joint 21,22 connects;
Pass through lockable multi-directional ball on the adjusting screw rod 112,133 of the outer end of the adjustable rod 11,13 of two sides Header structure 31,32 is connected with extension rod 41,42, and the fixture block 5 for connecting spicule is provided on extension rod 41,42, needs to illustrate , fixture block 5 illustrates only one in Fig. 1, quantity can flexible setting as needed, settable one on each extension rod Or multiple fixture blocks.
In use, first unclamping universal joint 21,22 and universal ball end structure 31,32, fixture block 5 is connected to extension rod 41,42 On;Then, one end of spicule is fixed on fracture, the other end is connected on fixture block 5;Finally, according to adjustable rod 11, length required for 12,13, rotation adjusts sleeve 111,121,131 so that the adjusting screw rod of two sides is stretched out or shunk, thus So that adjustable rod is extended or is shortened, when being adjusted to required length, stops operating and adjust sleeve, later according to required for It dehisces size, adjust the direction of universal joint 21,22 and universal ball end structure 31,32 and locks, so far, adjusting finishes, and length can Tightening force required for adjusting rod 11,12,13 can apply spicule.For example, hand-reset is tired when os pelvicum fracture linear slit gap is excessive When difficult, spicule can be installed by the pelvis external fixed mount that freely adjusts of the utility model, spicule is implanted into fracture, then rotates Sleeve is adjusted, adjusting sleeve, which will drive adjusting screw rod, to be shortened, and achievees the purpose that fracture line gap of furthering.Also, this is practical It is novel can also realize not remove when being mounted on human body readjust.
The utility model freely adjusts pelvis external fixed mount, can realize length adjustment by more piece adjustable rod, Multi-angle regulation can be realized by lockable universal joint and universal ball end structure, it is easy to use, it can guarantee that a specification is multi-purpose, only The fixed fracture portions of spicule need to be cooperated at the extension rod of two sides, thread a needle less, preferable therapeutic effect can be played, reduce iatrogenic Damage, shorten operating time, mitigate the pain to be born of patient, make operation fast, be safely completed.The utility model is applicable in In treating os pelvicum fracture in bone surgery, there is good fracture to be connected and fixed effect;And the utility model can adapt to and The case where realizing spicule multi-angle inserting needle, accordingly can be applied to pelvis complicated fracture.
In the utility model, for convenience of instrumentation, operating structure 114 (only for one) can be to surround a Zhou Yi Secondary four rectangular operation planars 1141 connected vertically, in order to carry out rotation adjusting by spanner;It and/or is square crossing Two through holes 1142 being arranged, penetrate through hole 1142 using barred body at this time and carry out rotation adjusting.
Preferably, the internal screw thread for adjusting 111,121,131 both ends of sleeve is double thread, in this way can be in adjustment length Accelerate adjustment speed, saves regulating time.Also, the hand of spiral of two adjusting screw rods of each adjustable rod 11,12,13 is excellent On the contrary, in this way when rotation adjusts sleeve 111,121,131, two adjusting screw rods can be simultaneously toward or away from movement, further for choosing Accelerate adjustment speed.Specifically, when may be arranged such that rotating regulating sleeve counterclockwise, two adjusting screw rods can extend toward both ends with It realizes and extends, when rotating clockwise adjusting sleeve, two adjusting screw rods past can adjust sleeve middle section close to realize shortening.
As shown in Figure 1, universal joint 21 (for one) preferably includes two orthogonal living hinges, each living hinge is equal The articulated shaft 212 of articulated shaft 212 including U-lag 211 and in U-lag 211, described two orthogonal living hinges passes through one The orthogonal connection of link block 213, the articulated shaft of one of living hinge be screw bolt and nut (be specifically as follows hexagon socket head cap screw and Hex nut) fit structure, and the screw bolt and nut sinks to being arranged in the two sidewalls of the U-lag of corresponding living hinge (being both located in U-lag outer wall).Bolt will not be protruded when screwing in this way scratches user and patient, and nut It by the way of sinking, preferably inlays and is fixed in U-lag outer wall, nut is fixed when screwing and unscrewing bolt, bolt Moving in rotation is carried out, a screw thread pair, more convenient operation are formed.Also, adjusting screw rod is connected with universal joint by bolt It connects, the angular range of adjustable adjusting screw rod when bolt unscrews, adjustable range about 0-270 degree, it can be with when bolt screws Adjusting screw rod and universal joint are linked together, fastening lock function is realized, to surround the closed region in three sides as shown in the figure.
As shown in figure 3, universal ball end structure 32 (for one) preferably includes connector 321, U-shaped part 322 and annular Clamping lock 323, in which:
Connector 321 includes spherical head 3211 and the square head portion 3212 with 3211 integrally connected of spherical head;
U-shaped part 322 is fixedly connected on the end (being specifically as follows integrated formed structure) of adjusting screw rod, annular clamping lock 323 Spherical head 3211 is connected in U-shaped part 322, square head portion 3212 stretches out annular clamping lock 323 and connection extension rod 42, for side Just it connects, extension rod 42 can be set in square head portion 3212 and be fixed by pin 326;
Be provided between U-shaped part 322 and spherical head 3211 pressure pad 324 for squeezing spherical head 3211 and for pair The cam lever 325 that pressure pad 324 presses.
The universal ball end structure is simple, easy to adjust.Certainly, universal ball end structure can also use those skilled in the art The other structures form being readily apparent that, and will not be described here in detail.
For convenience of the elastic state for adjusting universal ball end structure 32, the end of cam lever 325 can be set for driving The handle hole (not shown) that cam lever 325 rotates can be used instrument across U-shaped part 322 to operate the handle hole at that time, make convex It takes turns bar 325 to rotate, since cam lever 325 is variable-diameter structure, so that with the rotation of cam lever 325, so that it may which adjusting is applied to ball Pressure in forming head portion 3211, so as to adjust the elastic state of universal ball end structure.
Further, hemispherical groove 327 can be set on the distal face of U-shaped part 322;Annular 323 inside of clamping lock and U The corresponding position of the distal face of shape part 322 is provided with aperture 328, and spring 329, the end of spring 329 are provided in aperture 328 It is provided with the ball 320 that can roll into hemispherical groove 327.With this configuration, when 323 the two of U-shaped part 322 and annular clamping lock Between rotary clamping in place after, ball 320 can roll into hemispherical groove 327, thus prompt be installed in place.
As shown in Figure 1, fixture block 5 is preferably straight type fixture block, the threaded screw body 51 in distal end, screw can specifically include The annular intermediate plate 53 of first annular intermediate plate 52, second, crimp sleeve 54 and nut 55 are sequentially installed in main body 51, in which:
The axial middle part of screw body 51 is provided with the open-work (not shown) for accommodating spicule, and screw body 51 Side is also provided with the threaded hole being connected to the open-work, and the bolt for fixed bone spicule is equipped in the threaded hole, It in this way can position of the lock screw main body 51 on spicule by the bolt;
It is provided between first annular intermediate plate 52 and the second annular intermediate plate 53 in the outside of screw body 51 and prolongs for clamping The clamp groove 56 of stock.
In use, extension rod is put into clamp groove 56, then tightening nut 55, nut 55 are pressed by crimp sleeve 54 Tight two annular intermediate plates, to realize the fixation of extension rod.The fixture block 5 is structurally reasonable, easy to use, can be achieved at the same time extension rod With the connection of spicule.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art For personnel, under the premise of not departing from principle described in the utility model, it can also make several improvements and retouch, these improvement It also should be regarded as the protection scope of the utility model with retouching.

Claims (10)

1. a kind of freely adjust pelvis external fixed mount, which is characterized in that including sequentially connected at least 3 section adjustable rods, Wherein:
The adjustable rod includes two adjusting screw rods for adjusting sleeve and being threaded in the adjusting sleeve two sides, institute It states to adjust and is provided with operation structure in the middle part of sleeve;
It is connected between the relative adjustment screw rod of adjacent two adjustable rod by lockable universal joint;
Extension is connected with by lockable universal ball end structure on the adjusting screw rod of the outer end of the adjustable rod of two sides Bar is provided with the fixture block for connecting spicule on the extension rod.
2. according to claim 1 freely adjust pelvis external fixed mount, which is characterized in that the operation structure is successively to hang down The direct-connected rectangular operation planar of four connect, and/or, two through holes of square crossing setting.
3. according to claim 1 freely adjust pelvis external fixed mount, which is characterized in that the internal screw thread for adjusting sleeve For double thread.
4. according to claim 3 freely adjust pelvis external fixed mount, which is characterized in that the two of the adjustable rod The hand of spiral of adjusting screw rod is opposite.
5. according to claim 1 freely adjust pelvis external fixed mount, which is characterized in that the universal joint include two just Living hinge is handed over, each living hinge includes U-lag and the articulated shaft in the U-lag, described two orthogonal transmissions For the articulated shaft of hinge by the orthogonal connection of a link block, the articulated shaft of one of living hinge is screw bolt and nut cooperation knot Structure, and the screw bolt and nut sinks to being arranged in the two sidewalls of the U-lag of corresponding living hinge.
6. any in -5 according to claim 1 described freely adjust pelvis external fixed mount, which is characterized in that the universal ball end Structure includes connector, U-shaped part and annular clamping lock, in which:
The connector includes spherical head and the square head portion with the spherical head integrally connected;
The U-shaped part is fixedly connected on the end of adjusting screw rod, and the spherical head is connected to the U-shaped by the annular clamping lock In part, the square head portion stretches out the annular clamping lock and the connection extension rod;
The pressure pad for squeezing the spherical head is provided between the U-shaped part and spherical head and for applying to the pressure pad The cam lever of pressure.
7. according to claim 6 freely adjust pelvis external fixed mount, which is characterized in that be arranged on the cam lever useful In the handle hole for driving the cam lever rotation.
8. according to claim 6 freely adjust pelvis external fixed mount, which is characterized in that the extension rod is set in described It is fixed in square head portion and by pin.
9. according to claim 6 freely adjust pelvis external fixed mount, which is characterized in that on the distal face of the U-shaped part It is provided with hemispherical groove;
Position corresponding with the distal face of the U-shaped part is provided with aperture, setting in the aperture inside the annular clamping lock There is spring, the end of the spring is provided with the ball that can roll into the hemispherical groove.
10. according to claim 6 freely adjust pelvis external fixed mount, which is characterized in that the fixture block includes distally The screw body of screw thread is sequentially installed with first annular intermediate plate, the second annular intermediate plate, crimp sleeve and spiral shell in the screw body It is female, in which:
The axial middle part of the screw body is provided with the open-work for accommodating spicule;
It is provided on the outside of the screw body between the first annular intermediate plate and the second annular intermediate plate described for clamping The clamp groove of extension rod.
CN201821740206.8U 2018-10-24 2018-10-24 It is a kind of freely to adjust pelvis external fixed mount Active CN209301266U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821740206.8U CN209301266U (en) 2018-10-24 2018-10-24 It is a kind of freely to adjust pelvis external fixed mount

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821740206.8U CN209301266U (en) 2018-10-24 2018-10-24 It is a kind of freely to adjust pelvis external fixed mount

Publications (1)

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CN209301266U true CN209301266U (en) 2019-08-27

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CN201821740206.8U Active CN209301266U (en) 2018-10-24 2018-10-24 It is a kind of freely to adjust pelvis external fixed mount

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111529029A (en) * 2020-05-21 2020-08-14 上海长海医院 Integrative external fixation support of pelvis front and back ring
CN113813030A (en) * 2021-08-26 2021-12-21 杭州芬麦特机械有限公司 Pelvis repositor and use method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111529029A (en) * 2020-05-21 2020-08-14 上海长海医院 Integrative external fixation support of pelvis front and back ring
CN111529029B (en) * 2020-05-21 2024-01-23 上海长海医院 Integrative external fixation support of ring around pelvis
CN113813030A (en) * 2021-08-26 2021-12-21 杭州芬麦特机械有限公司 Pelvis repositor and use method thereof

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