CN205268269U - Shin calf screw is followed closely absolutely and is taken out locator down - Google Patents

Abstract

The utility model provides a shin calf screw is followed closely absolutely and is taken out locator down, belongs to orthopedic medical equipment technical field for pulling force screw to taking out down the position rupture of shin calf is fixed a position. Its technical scheme is: its locating support is by two L type connecting rod composition, and two abutment sleeve are connected respectively to the lower extreme of locating support, two abutment sleeve's the central axis point -blank, two L type connecting rods distance between can two abutment sleeve of slide adjusting, the location of taking out disconnected nail is accomplished to the position that can confirm through two abutment sleeve and ke shi needle to window the shin bone inboard and the orientation of windowing. The utility model discloses the location is quick, has once only solved the position of the inboard drilling of shin bone and the problem of boring direction, has avoided perspective radiation damage many times, and furthest has reduced the damage to the shin bone cortex of bone, has greatly shortened operation time, has reduced the operation degree of difficulty. The utility model discloses simple structure, easy operation are easily capable, are fit for the big hospital of basic hospital and each and carry out application promotion.

Description

A kind of lower tibiofibula screw broken nail takes out steady arm

Technical field

The utility model relates to a kind of steady arm taking out the lag screw use that lower tibiofibula position fractures, and belongs to orthopedic medical device technical field.

Background technology

In orthopaedics is clinical, for the patient of separation of Jower tibiofibular joint, adopt laterally squeezes into one piece above Jower tibiofibular joint or many pieces of lag screws are fixed more, owing to multiple reason (too early Go to ground activity or taking-up lag screw are too slow) can cause lag screw to rupture, the position of fracture is positioned at the position in the middle of shin bone and fibula more, taking-up is abandoned in the current many employings of broken nail to this position and operation taking-up two kinds of modes process, and these two kinds of processing modes all exist some problems at present:

First, if abandoning taking out, whether broken nail is retained for a long time has bad impact to have no report at present in body, but how many patients can be produced bad psychological impact simultaneously and determine. Secondly, when operation is taken out, owing to there is the stop of fibula in outside, fibula diameter is relatively thin in addition, easily causes fracture of fibula during taking-up, and therefore to adopt from window taking-ups, the position windowed and the direction windowed of tibial medial be the key of broken nail taking-up more. Traditional way is that dependence experience combines perspective repeatedly, this just makes the difficulty of operation increase, extend the time of operation, the more important thing is that the scope windowed is excessive, the loss of inner side cortex of bone is too much, and fracture of tibia easily occurs after art, and due to shin bone be the long bone with pulp cavity, art easily occurring, broken nail is subjected to displacement in pulp cavity direction, causes difficulty to getting nail.

Relatively above-mentioned two kinds of processing modes to broken nail, operation is taken out and is still compared positive mode, but needing to overcome determines the problem of the position windowed with the direction difficulty windowed, reducing operating difficulty, reduce operating time, avoid the loss of inner side cortex of bone too much, prevent art after there is fracture of tibia, reduce the radiation damage owing to repeatedly having an X-rayed medical personnel and the patient caused simultaneously, therefore develop a kind of take out lower tibiofibula position fracture screw time locating apparatus be very necessary.

Practical novel content

Technical problem to be solved in the utility model is to provide a kind of lower tibiofibula screw broken nail and takes out steady arm, this kind of steady arm can determine the position that tibial medial is windowed and the direction windowed fast, effectively shorten operating time, that avoids inner side cortex of bone crosses poly-injury, can significantly reduce the radiation damage to medical personnel and patient simultaneously.

The technical scheme solved the problems of the technologies described above is:

A kind of lower tibiofibula screw broken nail takes out steady arm, it comprises locating support, location sleeve, locating support is made up of two L-type connecting rods, each L-type connecting rod is made up of orthogonal bottom and upper segment, the top of two L-type connecting rods arranges point-blank, one end of two tops is relative, two of two top the other ends following relatively parallel, by sliding, structure is connected relative one end, two tops, the following lower end of two L-type connecting rods connects a location sleeve respectively, two location sleeves and two following perpendicular, the center axis of two location sleeves is point-blank, the internal diameter of two location sleeves mates mutually with kirschner pin diameter and hollow drill bit diameter respectively.

Above-mentioned lower tibiofibula screw broken nail takes out steady arm, the slip structure connecting two tops of described locating support is sliding sleeve and sliding bar, the front end of a top is sliding sleeve, the front end of another top is sliding bar, the external diameter of sliding bar mates mutually with the internal diameter of sliding sleeve, and sliding bar has latch recess alongst, and the tube wall of sliding sleeve has vertical locking screw, locking screw is relative with latch recess, and locking bolt holds out against in latch recess through locking screw.

Above-mentioned lower tibiofibula screw broken nail takes out steady arm, the slip structure connecting two tops of described locating support is slide block and chute, there is the slide block of projection alongst a top, there is chute alongst another top, slide block mates mutually with chute, slide block is embedded in chute, and slide block is arranged with multiple screw along its length respectively, and bolt passes screw by fastening for two tops.

The beneficial effects of the utility model are:

Locating support of the present utility model is made up of two L-type connecting rods, the lower end of locating support connects two location sleeves respectively, the center axis of two location sleeves is point-blank, two L-type connecting rods slide control two can locate the distance between sleeve, the position that tibial medial is windowed and the direction windowed can be determined by two location sleeves and kirschner pin, complete the location taking out broken nail. The utility model location is fast, solve the position of tibial medial boring and the problem of boring direction once, avoid the radiation damage repeatedly having an X-rayed medical matters personnel and patient, reduce the damage to tibial bone cortex to greatest extent, highly shortened operating time, reduce operating difficulty. The utility model takes full advantage of original common orthopedic instrument, and structure is simple, is convenient to that preoperative operation is simple to its sterilization, is applicable to basic hospital and various big hospital carries out application.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the utility model another kind of structural representation;

Fig. 4 is the A-A sectional view of Fig. 3.

Figure mark as follows: locating support 1, location sleeve 2, top 3, following 4, sliding sleeve 5, sliding bar 6, latch recess 7, lock bolt 8, slide block 9, chute 10, screw 11, standing bolt 12, kirschner pin 13, hollow drill bit 14.

Embodiment

The utility model is made up of locating support 1 and location sleeve 2.

Fig. 1,2 displays, locating support 1 is made up of two L-type connecting rods, and each L-type connecting rod is made up of orthogonal top 3 and following 4. The top 3 of two L-type connecting rods arranges point-blank, one end of two tops 3 is relative, two of two top 3 the other ends are following 4 relatively parallel, by sliding, structure is connected relative one end, two tops 3, the lower end of two following 4 connects a location sleeve 2 respectively, can be regulated the distance between the location sleeve 2 of two following 4 times ends by slip structure.

Fig. 1,2 displays, two location sleeves 2 are following 4 perpendicular with two respectively, and point-blank, the internal diameters of two location sleeves 2 mate mutually the center axis of two location sleeves 2 respectively with kirschner pin 13 diameter and hollow drill bit 14 diameter. The internal diameter of location sleeve 2 has multiple choices, so that kirschner pin 13 and hollow drill bit 14 phase with different diameter mate.

Due to two locate sleeves 2 center axis point-blank, locate sleeve 2 by two and it is placed in fibula side and tibial side respectively, utilize the nail insertion kirschner pin 13 of broken nail in fibula side, then the direction of kirschner pin 13 axis is the direction that hollow drill bit 14 is squeezed into from tibial side, and broken nail can eject from the hole that hollow drill bit 14 is squeezed into.

Above-mentioned two location sleeves 2 can be fixing being welded to connect respectively with the mode of connection of two following 4, it is also possible to is dismountable connection. In the first mode of connection, the location sleeve 2 of different diameter of bore is welded on respectively the lower end of multiple locating support 1, carries out selecting different locating supports 1 according to different kirschner pins 13 and hollow drill bit 14 diameter in use; In 2nd kind of mode of connection, the following lower end of locating support 1 has sleeve open holes, the internal diameter of sleeve open holes mates mutually with the external diameter of location sleeve 2, multiple location sleeve 2 adopts unified external diameter, but their diameter of bore mates from different kirschner pins 13 and hollow drill bit 14 phase respectively, at the lower end of locating support 1, different location sleeves 2 is installed respectively as required in use, and holds out against fixing at the outside jackscrew of sleeve open holes.

Fig. 1,2 displays, the slip structure connecting two tops 3 of locating support 1 is for being sliding sleeve 5 and sliding bar 6, the front end of a top 3 is sliding sleeve 5, the front end of another top is sliding bar 6, the external diameter of sliding bar 6 mates mutually with the internal diameter of sliding sleeve 5, sliding sleeve 5 and sliding bar 6 are for being slidably matched, it is possible to the distance at adjustment locating support 1 two ends.

Fig. 1,2 displays, sliding bar 6 has latch recess 7 alongst, the tube wall of sliding sleeve 5 has vertical locking screw, and locking screw is relative with latch recess 7, and locking bolt 8 holds out against in latch recess 7 through locking screw. Latch recess 7 is relative with locking screw, two tops 3 being possible to prevent locating support 1 relatively rotate, with to ensure two of locating support 2 following 4 parallel states of maintenance so that the center axis of two location sleeves 2 accurately point-blank, accurately to complete location.

Fig. 3,4 displays, another kind of structure of the present utility model is, the slip structure connecting two tops 3 of locating support 1 is slide block 9 and chute 10, there is the slide block 9 of projection alongst a top 3, there is chute 10 alongst another top 3, slide block 9 and chute 10 lay respectively on the medullary ray of two tops 3, and slide block 9 mates mutually with chute 10, and slide block 9 is embedded in chute 10. Being arranged with multiple screw 11 on slide block 9 along its length respectively, after the width adjustment of locating support 2, standing bolt 12 passes screw 11 by fastening for two tops 3. The slide block 9 of two tops 3 can ensure two of the locating support 2 following 4 parallel states of maintenance with the embedded structure of chute 10, accurately to complete location.

Use procedure of the present utility model is as follows:

The fibula part of broken nail being taken out in operation, slide in two tops 3 of locating support 1, fastening after adjusting to suitable width. Two of locating support 1 time end location sleeves 2 are placed in fibula side and tibial side respectively, select with broken nail diameter closest to kirschner pin 13, kirschner pin 13 is inserted from the tail end hole of broken nail, and passes from the interior hole of the location sleeve 2 of fibula side, the position of this location sleeve 2 is fixed. Select the hollow drill bit 14 slightly bigger than broken nail diameter from the location sleeve 2 of tibial side wear into, the internal diameter of location sleeve 2 can hold hollow drill bit 14, and also diameter is closest, hollow drill bit 14 by tibial medial cortex bore into, and punch pair sides cortex. Remove steady arm, with the kirschner pin 14 of hammer hammering fibula side, broken nail is hammered into shape out from tibial medial cortex.

Claims (3)

1. a lower tibiofibula screw broken nail takes out steady arm, it is characterized in that: it comprises locating support (1), location sleeve (2), locating support (1) is made up of two L-type connecting rods, each L-type connecting rod is made up of orthogonal top (3) and following (4), the top (3) of two L-type connecting rods arranges point-blank, one end of two tops (3) is relative, two of two top (3) the other ends following (4) are relatively parallel, by sliding, structure is connected the relative one end of two tops (3), the lower end of following (4) of two L-type connecting rods connects location sleeve (2) respectively, two location sleeve (2) are perpendicular with two following (4), the center axis of two location sleeve (2) is point-blank, the internal diameter of two location sleeve (2) mates mutually with kirschner pin (13) diameter and hollow drill bit (14) diameter respectively.

2. lower tibiofibula screw broken nail according to claim 1 takes out steady arm, it is characterized in that: the slip structure of the connection of described locating support (1) two tops (3) is sliding sleeve (5) and sliding bar (6), the front end of a top (3) is sliding sleeve (5), the front end of another top (3) is sliding bar (6), the external diameter of sliding bar (6) mates mutually with the internal diameter of sliding sleeve (5), sliding bar (6) has latch recess alongst (7), the tube wall of sliding sleeve (5) has vertical locking screw, locking screw is relative with latch recess (7), locking bolt (8) holds out against in latch recess (7) through locking screw.

3. lower tibiofibula screw broken nail according to claim 1 takes out steady arm, it is characterized in that: the slip structure of the connection of described locating support (1) two tops (3) is slide block (9) and chute (10), a top (3) has the slide block (9) of projection alongst, there is chute alongst (10) another top (3), slide block (9) mates mutually with chute (10), slide block (9) is embedded in chute (10), slide block (9) is arranged with multiple screw (11) along its length respectively, standing bolt (12) through screw (11) by fastening for two tops (3).