CN220344468U - Backbone sliding fixing device - Google Patents

Abstract

The utility model discloses a spine sliding fixing device which comprises a screw body, wherein a connector is detachably connected to the upper end of the screw body, a sliding connecting mechanism is detachably connected to one side of the connector, the sliding connecting mechanism comprises an upper sliding block, a sliding groove, a fixing bolt, a lower sliding block, a first connecting sleeve, a second connecting sleeve and a positioning bolt, and the sliding groove is formed in the upper end of the upper sliding block. According to the spine sliding fixing device, the sliding connecting mechanism can be used for adjusting the degree of the sliding connecting mechanism according to the distance between the two screw bodies, so that a better spine fixing effect is achieved, the connecting sleeve and the connecting strip can be fixed through the positioning bolt, looseness between the connecting sleeve and the connecting strip is avoided, the fixing and adjusting between the screw bodies and the connecting strip are facilitated through the locking cap, the screw opening and the screw bodies, discomfort of a patient is reduced, the practicability of the device is improved, and a better use prospect is brought.

Description

Backbone sliding fixing device

Technical Field

The utility model relates to the field of spine fixation, in particular to a spine sliding fixing device.

Background

When the existing spine fixing device is used, for dislocation type lumbar fracture, the internal fixation treatment of the pedicles of long segments is a treatment method which is recognized by people, but after the long segments are firmly and internally fixed, the activity of lumbar vertebrae is greatly limited, the fixed cutting activity is basically zero, and degeneration diseases close to joints are easy to generate, if short segments are adopted for fixation, risks of insufficient fixing strength, internal fixation looseness, breakage, fixing failure and the like are easy to generate, and certain adverse effects are brought to the use process of people.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the spine sliding fixing device which has the advantages of the spine sliding fixing device and the like and can effectively solve the problems in the background art.

Technical proposal

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a backbone sliding fixation device, includes the screw body, the upper end of screw body can be dismantled and be connected with the connector, one side of connector can be dismantled and be connected with sliding connection mechanism.

Preferably, the sliding connection mechanism comprises an upper sliding block, a sliding groove, a fixing bolt, a lower sliding block, a first connection sleeve, a second connection sleeve and a positioning bolt, wherein the sliding groove is formed in the upper end of the upper sliding block, the fixing bolt is fixedly arranged at the upper end of the sliding groove, the lower sliding block is movably connected with the lower sliding block at the lower end of the upper sliding block, the first connection sleeve is fixedly connected with one side of the lower sliding block, the second connection sleeve is fixedly connected with one side of the upper sliding block, and the positioning bolt is fixedly arranged at the upper ends of the first connection sleeve and the second connection sleeve.

Preferably, the inner cavity sliding connection of second adapter sleeve has first connecting strip, the inner cavity swing joint of first adapter sleeve has the second connecting strip, the lower extreme demountable connection of first connecting strip and second connecting strip has the screw body, the upper end demountable connection of first connecting strip and second connecting strip has the locking cap, the screw socket has been seted up to the upper end of locking cap.

Preferably, the screw body comprises a threaded rod, a U-shaped nail, a clamping groove, an annular groove and a limit pin hole, wherein the upper end of the threaded rod is fixedly connected with the lower end of the U-shaped nail, the clamping groove is formed in the upper end of the U-shaped nail, the annular groove is formed in the inner cavity of the clamping groove, and the limit pin hole is formed in one side of the U-shaped nail.

Preferably, the fixing bolt is in sliding connection with the upper end of the lower sliding block through a sliding groove.

Preferably, the first connecting strip and the second connecting strip are tightly attached to the clamping groove through the fixation of the locking cap, and the first connecting strip and the second connecting strip are respectively positioned at two sides of the sliding connection mechanism.

Preferably, the first connecting sleeve and the second connecting sleeve fix the first connecting strip and the second connecting strip through positioning bolts, and the number of the positioning bolts is two.

Compared with the prior art, the utility model provides a spine sliding fixing device, which has the following beneficial effects:

1. this backbone slip fixing device, through the slip joint mechanism that sets up upper slider, the spout, fixing bolt, lower slider, first adapter sleeve, second adapter sleeve and positioning bolt's under mutually supporting, can adjust slip joint mechanism's degree according to the distance between two screw bodies, reach the better effect to the backbone is fixed, fixing bolt's rotation drives upper slider and passes through the spout internal sliding, thereby adjust the distance of upper slider and lower slider, thereby drive first adapter sleeve and second adapter sleeve, make reach the effect of fastening between first connecting strip and the second connecting strip, thereby reach the better effect to the backbone is fixed, can fix between adapter sleeve and the connecting strip through positioning bolt, avoid not hard up between adapter sleeve and the connecting strip.

2. This backbone slip fixing device, under the mutually supporting of threaded rod, staple, draw-in groove, ring channel, spacing pinhole in through locking cap, screw socket and the screw body that set up, be convenient for fix and adjust between screw body and the connecting rod, can fix the connecting rod in the draw-in groove through the locking cap, be convenient for the dismantlement and the installation of locking cap through the screw socket, be convenient for restrict the height of connecting rod through spacing pinhole, reduce patient's uncomfortable sense, improved the practicality of device.

Drawings

Fig. 1 is a schematic view showing the overall structure of a spinal sliding fixation device according to the present utility model.

Fig. 2 is a block diagram of a sliding connection mechanism of the spinal sliding fixing device according to the present utility model.

Fig. 3 is a structure diagram showing the connection of the connecting strip and the screw body of the sliding fixing device for the spine.

Fig. 4 is a block diagram of a screw body in a spinal sliding fixation device according to the present utility model.

In the figure: 1. a screw body; 2. a connector; 3. a sliding connection mechanism; 4. a first connecting bar; 5. a second connecting bar; 6. a locking cap; 7. a screw; 101. a threaded rod; 102. a U-shaped nail; 103. a clamping groove; 104. an annular groove; 105. limiting pin holes; 301. an upper slider; 302. a chute; 303. a fixing bolt; 304. a lower slide block; 305. a first connection sleeve; 306. a second connecting sleeve; 307. and positioning bolts.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1 to 4, a spine sliding fixing device comprises a screw body 1, wherein a connector 2 is detachably connected to the upper end of the screw body 1, and a sliding connection mechanism 3 is detachably connected to one side of the connector 2.

Further, the sliding connection mechanism 3 includes an upper slider 301, a sliding chute 302, a fixing bolt 303, a lower slider 304, a first connection sleeve 305, a second connection sleeve 306 and a positioning bolt 307, the sliding chute 302 is provided at the upper end of the upper slider 301, the fixing bolt 303 is fixedly mounted at the upper end of the sliding chute 302, the lower slider 304 is movably connected at the lower end of the upper slider 301, the first connection sleeve 305 is fixedly connected at one side of the lower slider 304, the second connection sleeve 306 is fixedly connected at one side of the upper slider 301, the positioning bolt 307 is fixedly mounted at the upper ends of the first connection sleeve 305 and the second connection sleeve 306, and the degree of the sliding connection mechanism 3 can be adjusted according to the distance between the two screw bodies 1, so as to achieve a better effect on spine fixation.

Further, the inner cavity of the second connecting sleeve 306 is slidably connected with the first connecting strip 4, the inner cavity of the first connecting sleeve 305 is movably connected with the second connecting strip 5, the lower ends of the first connecting strip 4 and the second connecting strip 5 are detachably connected with the screw body 1, the upper ends of the first connecting strip 4 and the second connecting strip 5 are detachably connected with the locking cap 6, and the upper end of the locking cap 6 is provided with the screw 7.

Further, screw body 1 includes threaded rod 101, staple 102, draw-in groove 103, ring channel 104 and spacing pinhole 105, the lower extreme fixed connection of threaded rod 101 and staple 102, draw-in groove 103 has been seted up to the upper end of staple 102, the inner chamber of draw-in groove 103 is provided with ring channel 104, spacing pinhole 105 has been seted up to one side of staple 102, be convenient for fix and adjust between screw body 1 and the connecting rod, can fix the connecting rod in draw-in groove 103 through locking cap 6, be convenient for the dismantlement and the installation of locking cap 6 through screw 7, be convenient for restrict the height of connecting rod through spacing pinhole 105, reduce patient's uncomfortable sense, the practicality of device has been improved.

Further, the fixing bolt 303 is slidably connected with the upper end of the lower slider 304 through the sliding slot 302, and the rotation of the fixing bolt 303 drives the upper slider 301 to slide in the sliding slot 302, so as to adjust the distance between the upper slider 301 and the lower slider 304.

Further, the first connecting strip 4 and the second connecting strip 5 are tightly attached to the clamping groove 103 through the fixing of the locking cap 6, and the first connecting strip 4 and the second connecting strip 5 are respectively located at two sides of the sliding connecting mechanism 3.

Further, the first connecting sleeve 305 and the second connecting sleeve 306 fix the first connecting strip 4 and the second connecting strip 5 through the positioning bolts 307, and the number of the positioning bolts 307 is two, so that a better effect on spine fixation is achieved, the connecting sleeve and the connecting strip can be fixed through the positioning bolts 307, and looseness between the connecting sleeve and the connecting strip is avoided.

When the spine sliding fixing device is used, the sliding connecting mechanism 3 is arranged, the sliding connecting mechanism 3 is adjusted according to the distance between the two screw bodies 1, the degree of the sliding connecting mechanism 3 can be adjusted, the better spine fixing effect is achieved, the fixing bolt 303 rotates to drive the upper sliding block 301 to slide in the sliding groove 302, the distance between the upper sliding block 301 and the lower sliding block 304 is adjusted, the first connecting sleeve 305 and the second connecting sleeve 306 are driven, the fastening effect is achieved between the first connecting strip 4 and the second connecting strip 5, the better spine fixing effect is achieved, the connecting sleeve and the connecting strip can be fixed through the positioning bolt 307, looseness between the connecting sleeve and the connecting strip is avoided, the screw cap 6, the threaded rod 101, the U-shaped nail 102, the clamping groove 103, the annular groove 104 and the limiting pin hole 105 are arranged in the screw body 1, the fixing and adjusting between the screw body 1 and the connecting strip are facilitated, the connecting strip can be fixed in the clamping groove 7 through the locking cap 6, the practical applicability of the connecting strip is improved, and the patient can not be conveniently detached through the limiting pin hole 105.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (4)

1. A spinal sliding fixation device comprising a screw body (1), characterized in that: the upper end of the screw body (1) is detachably connected with a connector (2), and one side of the connector (2) is detachably connected with a sliding connection mechanism (3);

the sliding connection mechanism (3) comprises an upper sliding block (301), a sliding groove (302), a fixing bolt (303), a lower sliding block (304), a first connection sleeve (305), a second connection sleeve (306) and a positioning bolt (307), wherein the sliding groove (302) is formed in the upper end of the upper sliding block (301), the fixing bolt (303) is fixedly arranged at the upper end of the sliding groove (302), the lower sliding block (304) is movably connected with the lower sliding block (301), the first connection sleeve (305) is fixedly connected with one side of the lower sliding block (304), the second connection sleeve (306) is fixedly connected with one side of the upper sliding block (301), and the positioning bolt (307) is fixedly arranged at the upper ends of the first connection sleeve (305) and the second connection sleeve (306);

the inner cavity of the second connecting sleeve (306) is slidably connected with a first connecting strip (4), the inner cavity of the first connecting sleeve (305) is movably connected with a second connecting strip (5), the lower ends of the first connecting strip (4) and the second connecting strip (5) are detachably connected with a screw body (1), the upper ends of the first connecting strip (4) and the second connecting strip (5) are detachably connected with a locking cap (6), and the upper end of the locking cap (6) is provided with a screw (7);

screw body (1) include threaded rod (101), staple (102), draw-in groove (103), ring channel (104) and spacing pinhole (105), the upper end of threaded rod (101) is with the lower extreme fixed connection of staple (102), draw-in groove (103) have been seted up to the upper end of staple (102), the inner chamber of draw-in groove (103) is provided with ring channel (104), spacing pinhole (105) have been seted up to one side of staple (102).

2. A spinal slide fastener as recited in claim 1, wherein: the fixing bolt (303) is connected with the upper end of the lower sliding block (304) in a sliding way through the sliding groove (302).

3. A spinal slide fastener as recited in claim 1, wherein: the first connecting strip (4) and the second connecting strip (5) are tightly attached to the clamping groove (103) through the fixation of the lock cap (6), and the first connecting strip (4) and the second connecting strip (5) are respectively positioned at two sides of the sliding connecting mechanism (3).

4. A spinal slide fastener as recited in claim 1, wherein: the first connecting sleeve (305) and the second connecting sleeve (306) fix the first connecting strip (4) and the second connecting strip (5) through the positioning bolts (307), and the number of the positioning bolts (307) is two groups.