CN210990664U

CN210990664U - Combined bone transplantation fixing and pressurizing device

Info

Publication number: CN210990664U
Application number: CN201921196528.5U
Authority: CN
Inventors: 陈宁杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-07-14
Anticipated expiration: 2029-07-26

Abstract

The utility model belongs to fracture operation articles for use field, concretely relates to fixed pressure device of modular bone transplantation, including locking steel sheet and a plurality of hexagon socket head cap screw, still include with the knot cap of hexagon socket head cap screw one-to-one, first cable, second cable and decompression steel sheet, be equipped with many cable grooves on decompression steel sheet and the locking steel sheet, still be equipped with a screw hole on the locking steel sheet, threaded hole is internal to be connected with a locking screw in advance, all runs through the through wires hole on the head of each knot cap, the afterbody of each knot cap all with hexagon socket head cap screw's hexagon socket head cap slot phase-match, the second cable passes the through wires hole of each knot cap in proper order. The combined bone transplantation fixing and pressurizing device of the utility model is provided with the pressure reducing steel plate and the locking screw, thereby not only ensuring the pressurizing degree, but also preventing the bone cutting problem; meanwhile, the fastening cap and the second cable are arranged, so that the problem of looseness of the socket head cap screw is solved.

Description

Combined bone transplantation fixing and pressurizing device

Technical Field

The utility model relates to a combined bone transplantation fixing and pressurizing device, which belongs to the field of fracture surgery articles.

Background

The method for clinically treating the fracture bone defect in the orthopedics department is bone grafting, at present, a method for fixing a bone grafting block is to bind by using a cable, and due to the fact that the cable is thin, if the cable is pressed tightly, the bone is easy to cut, and if the cable is not pressed tightly, the cable is easy to loosen; meanwhile, the screw for fixing the steel plate is easy to rotate and loosen, so that the bone grafting block is easy to shift, and the rehabilitation of a patient is influenced.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: provided is a combined type bone transplantation fixation pressurizing device which can ensure the pressurizing degree, prevent the bone cutting problem and prevent the screw loosening.

Modular fixed pressure device of bone transplantation, including locking steel sheet and a plurality of hexagon socket head cap screw, still include with the knot cap of hexagon socket head cap screw one-to-one, first cable, second cable and decompression steel sheet, be equipped with many cable grooves on decompression steel sheet and the locking steel sheet, still be equipped with a screw hole on the locking steel sheet, threaded hole is connected with a locking screw in advance, all run through the through wires hole on each head of detaining the cap, each afterbody of detaining the cap all with hexagon socket head cap screw's hexagon socket head cap hole phase-match, the second cable passes the through wires hole of each knot cap in proper order.

The head of the buckle cap is hemispherical, and the appearance of the buckle cap is arc-shaped so as to prevent friction and pain.

The back of the pressure reducing steel plate is provided with a plurality of anti-skid protrusions, so that friction force can be increased, and displacement is prevented.

Compared with the prior art, the utility model beneficial effect who has is:

the combined bone transplantation fixing and pressurizing device of the utility model is provided with the pressure reducing steel plate and the locking screw, thereby not only ensuring the pressurizing degree, but also preventing the bone cutting problem; meanwhile, the fastening cap and the second cable are arranged, so that the problem of looseness of the socket head cap screw is solved.

Drawings

FIG. 1 is a schematic view of the present invention in use;

FIG. 2 is a schematic structural view of the buckle cap of the present invention;

FIG. 3 is a plan view of the pressure reducing steel plate of the present invention;

fig. 4 is a bottom view of the pressure reducing steel plate of the present invention;

fig. 5 is a schematic structural view of the present invention used in small bone fractures.

In the figure: 1. a bone; 2. a pressure reducing steel plate; 3. a cable trough; 4. a bone grafting area; 5. locking the steel plate; 6. a locking screw; 7. a threaded hole; 8. a first cable; 9. a second cable; 10. buckling a cap; 11. a socket head cap screw; 12. a tail portion; 13. a head portion; 14. threading holes; 15. and (4) anti-skid bulges.

Detailed Description

Embodiments of the present invention are further described below with reference to the accompanying drawings:

as shown in fig. 1 to 4, fixed pressure device of combination formula bone graft, including locking steel sheet 5 and a plurality of hexagon socket head cap screw 11, still include with 11 one-to-one of hexagon socket head cap screw detain cap 10, first cable 8, second cable 9 and decompression steel sheet 2, be equipped with many cable grooves 3 on decompression steel sheet 2 and the locking steel sheet 5, still be equipped with a screw hole 7 on the locking steel sheet 5, it has a locking screw 6 to connect with in advance in the screw hole 7, all run through threaded hole 14 on the head 13 of each knot cap 10, the afterbody 12 of each knot cap 10 all matches with the hexagon socket head cap hole of hexagon socket head cap screw 11, second cable 9 passes the threaded hole 14 of each knot cap 10 in proper order.

In a preferred embodiment:

the head 13 of the buckle cap 10 is hemispherical and has an arc-shaped appearance so as to prevent friction and pain; the back of the pressure reducing steel plate 2 is provided with a plurality of anti-skid projections 15, which can increase the friction force and prevent displacement.

When the bone grafting device is used, the locking steel plate 5 spans the bone grafting area 4, the locking steel plate 5 is fixed on the bone 1 through the plurality of inner hexagon screws 11, then the pressure reducing steel plate 2 is placed on the other side of the bone 1, one end of the first cable 8 is wound on the screw rod of the locking screw 6, the other end of the first cable passes through the pressure reducing steel plate 2 and the cable groove 3 on the locking steel plate 5 back and forth, and finally the first cable is wound on the screw rod of the locking screw 6, and then the locking screw 6 is screwed, so that the pressurization degree is ensured, and the bone cutting problem is also prevented; then the second cable 9 with the buckle cap 10 is taken out, the tail parts 12 of the buckle cap 10 are clamped into the inner hexagonal groove holes of the corresponding inner hexagonal screws 11 one by one, and the two ends of the second cable 9 are respectively penetrated into the far ends of the bones 1 and screwed, so that the problem of loosening of the inner hexagonal screws 11 can be avoided.

In addition, for some small fractures, such as internal ankle fracture, olecranal fracture and the like, the fixation is performed by a tension band fixation method, namely a kirschner wire and a cable are added, but the fixation strength is not enough, and the wire is easy to withdraw; in addition, the problem of loosening of the screw and rotation of the bone block cannot be controlled if the bone block is small and only a single screw is used. To this end, as shown in fig. 5, adopt the utility model discloses a socket head cap screw 11 is fixed in fracture department, then will wear the cap 10 that detains of second cable 9 and detain in socket head cap screw 11 to penetrate the distal end of fracture bone and screw up with the both ends of second cable 9, can exert the tension band effect, solve the problem that present minor fracture met.

The combined bone transplantation fixing and pressurizing device of the utility model is provided with the pressure reducing steel plate 2 and the locking screw 6, thereby not only ensuring the pressurizing degree, but also preventing the bone cutting problem; meanwhile, the locking cap 10 and the second cable 9 are arranged, so that the problem of looseness of the socket head cap screw 11 is solved.

Claims

1. The utility model provides a fixed pressure device of modular bone grafting, includes locking steel sheet (5) and a plurality of socket head cap screw (11), its characterized in that: the cable locking device is characterized by further comprising buckling caps (10) corresponding to the inner hexagonal screws (11) one to one, first cables (8), second cables (9) and a pressure reducing steel plate (2), wherein a plurality of cable grooves (3) are formed in the pressure reducing steel plate (2) and the locking steel plate (5), a threaded hole (7) is further formed in the locking steel plate (5), a locking screw (6) is pre-connected into the threaded hole (7), threading holes (14) penetrate through the heads (13) of the buckling caps (10), the tails (12) of the buckling caps (10) are matched with the inner hexagonal groove holes of the inner hexagonal screws (11), and the second cables (9) sequentially penetrate through the threading holes (14) of the buckling caps (10).

2. The modular bone graft fixation compression device of claim 1, wherein: the head (13) of the buckle cap (10) is hemispherical.

3. The modular bone graft fixation compression device of claim 1 or 2, wherein: the back of the pressure reducing steel plate (2) is provided with a plurality of anti-skid projections (15).