CN113952012A - Small trochanter bone block belt loop titanium plate and assembly thereof - Google Patents

Abstract

The invention discloses a small trochanter bone block belt loop titanium plate and a component thereof, which comprise a titanium plate and a wire loop; the titanium plate is a curved surface matched with the surface of the small trochanter bone block; the titanium plate penetrates along the thickness direction of the titanium plate to form two loop wire holes, and the loop wire penetrates through the loop wire holes; two ends of the titanium plate are provided with toothed nails which are arranged on the concave surface of the titanium plate. And the middle part of the titanium plate is provided with a folding mechanism. The assembly comprises a nail feeder and an outer side end titanium plate, wherein the nail feeder is provided with a sleeve and a conveying plate; the conveying plate is hinged with the end part of the sleeve, and two side plates outwards extend by taking the hinged point as a center; the outer side end titanium plate is connected with the titanium plate through a wire loop.

Description

Small trochanter bone block belt loop titanium plate and assembly thereof

Technical Field

The invention belongs to the technical field of orthopedic instruments, and particularly relates to a trochanter bone block belt loop titanium plate and a component thereof.

Background

Intertrochanteric femoral fracture is one of the most common fractures, and is common to the elderly and is accompanied by lesser trochanter fracture of the femur. The medial intertrochanteric wall is the most important pressure-conducting part of the medial cortical bone between the intertrochanteric femurs, and whether the medial intertrochanteric fracture is complete is directly related to whether the intertrochanteric fracture is stable. The damage condition of the inner side wall of the intertrochanteric fracture can have great influence on the curative effect of the internal fixation operation, and is one of the key factors for directly determining whether the internal fixation operation is successful. The treatment of the intertrochanteric unstable fracture, the intramedullary fixation has certain advantages, but still controversy exists, the treatment of the intertrochanteric fracture AO/OTA 31-A2 by respectively applying DHS and intramedullary nail has higher internal fixation failure rate, and the treatment cost is greatly saved. Intramedullary fixation for treating unstable fracture between femoris trochanters can achieve ideal functional reconstruction, but the damage of the inner side wall between the femoris trochanters is still one of the key factors causing internal fixation failure.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides a small trochanter bone block belt loop titanium plate and a component thereof, and solves the problem of fixing the inner side wall between femoral rotors in the background technology.

One of the technical schemes adopted by the invention for solving the technical problems is as follows: the small trochanter bone block belt loop titanium plate comprises a titanium plate and a wire loop; the titanium plate is a curved surface matched with the surface of the small trochanter bone block; the titanium plate penetrates along the thickness direction of the titanium plate to form two loop wire holes, and the loop wire penetrates through the loop wire holes; two ends of the titanium plate are provided with toothed nails which are arranged on the concave surface of the titanium plate.

In a preferred embodiment of the present invention, the titanium plate includes a first folding plate and a second folding plate, the first folding plate and the second folding plate are connected by a folding mechanism, and the two tab holes are respectively disposed on the first folding plate and the second folding plate.

In a preferred embodiment of the present invention, a torsion spring is disposed in the folding mechanism.

The second technical scheme adopted by the invention for solving the technical problems is as follows: the small trochanter bone block belt loop titanium plate and the assembly thereof are provided, wherein the assembly comprises a nail feeder, and the nail feeder is provided with a sleeve and a conveying plate; the conveying plate is hinged with the end part of the sleeve, and two side plates outwards extend by taking the hinged point as a center; the sleeve is hollow, a push rod is arranged in the sleeve, and the push rod is connected with the two side plates and used for controlling the two side plates to be folded towards the sleeve or unfolded towards the outside.

In a preferred embodiment of the present invention, the nail feeding device further comprises a handle, the handle is provided with a control portion, one end of the push rod is connected with the control portion, and the other end of the push rod is connected with the two side plates.

In a preferred embodiment of the present invention, the end of the sleeve is provided with a side plate accommodating portion.

In a preferred embodiment of the present invention, one end of the push rod is hinged to two connecting rods, the two connecting rods are hinged to the inner sides of the two side plates, respectively, and when the two connecting rods are in an open state, the two side plates are unfolded outwards.

In a preferred embodiment of the present invention, the two side plates of the conveying plate are symmetrically disposed around the hinge point, and the first folding plate and the second folding plate of the titanium plate are symmetrically disposed around the folding mechanism.

In a preferred embodiment of the present invention, the control part is provided with an adjusting nut, and the adjusting nut includes a coarse adjusting nut and a fine adjusting nut.

In a preferred embodiment of the present invention, the handle is provided with a wire hole, and the wire hole is communicated with the interior of the sleeve.

The third technical scheme adopted by the invention for solving the technical problems is as follows: the assembly comprises an outer side end titanium plate, the outer side end titanium plate is arranged on the opposite side of the titanium plate on the femur, and the wire loop is connected between the outer side end titanium plate and the titanium plate.

In a preferred embodiment of the present invention, the outer side titanium plate is provided with a base, and the base is used for fixing with the femoral steel plate.

In a preferred embodiment of the invention, the outer side end titanium plate is provided with a through hole, and the through hole is used for a nail feeder to pass through.

Compared with the background technology, the technical scheme has the following advantages:

1. the titanium plate with the belt loop has a curved surface structure, the periphery of the titanium plate is smooth, the titanium plate is provided with the toothed nails, the titanium plate can be unfolded and attached to the surface of the lesser trochanter bone of the femur, and the problem of fixation of the lesser trochanter on the inner side wall when unstable fracture between the lesser trochanters of the femur is treated by traditional intramedullary fixation is solved;

2. the assembly comprises a nail feeding device capable of conveying a belt-loop titanium plate, wherein the head part of the nail feeding device is provided with a delivery plate which is attached to a foldable belt-loop titanium plate and can be unfolded, and after the nail feeding device is conveyed to a target position, an operation part (a screw) at a handle of the nail feeding device is rotated to unfold the delivery plate, so that the foldable belt-loop titanium plate is driven to be unfolded and attached to the surface of a femur lesser trochanter bone to finish the fixation;

3. the assembly comprises an outer side end titanium plate which is matched with a belt loop titanium plate for use, an operator installs the outer side end titanium plate with a base at the tail end, and tightens a suture to complete reduction and fixation of the small trochanter bone block, so that the assembly is convenient and quick.

Drawings

FIG. 1 is a structural view of a titanium plate in example 1;

FIG. 2 is a developed structural view of a titanium plate in example 2;

FIG. 3 is a folding structure of a titanium plate in accordance with example 2;

FIG. 4 is an anisotropic view of a titanium plate of example 2, wherein: a-bottom view, b-front view, c-top view, d-rear view, e-left view, f-right view;

FIG. 5 is a structural view of a tacker in accordance withembodiment 3;

FIG. 6 is the view of the nailing device of example 3, wherein: a-bottom view, b-front view, c-top view, d-right view;

FIG. 7 is a detail view taken at A in FIG. 6;

fig. 8 is a structural view of two states of the nailing device of theembodiment 3, wherein: a-folding, b-unfolding;

FIG. 9 is one of the usage state diagrams of the components ofembodiment 3;

FIG. 10 is a second state diagram of the device of example 3;

FIG. 11 is a structural view of an outer side titanium plate in example 4;

FIG. 12 is an anisotropic view of the outboard titanium plate of example 4, wherein: a-top view, b-front view;

figure 13 is a view of the femoral trochanter fixation of example 4.

Wherein:

1-titanium plate, 11-loop hole, 12-tooth nail, 13-first folding plate, 14-second folding plate and 15-folding mechanism;

2-nailing device, 21-handle, 22-sleeve, 23-conveying plate, 24-push rod, 25-connecting rod, 26-coarse adjusting nut, 27-fine adjusting nut, 28-side plate containing part and 29-line hole;

3-a thread loop;

4-outer side end titanium plate, 41-base and 42-through hole;

5-steel plate.

Detailed Description

It is to be understood that the terms "center," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

The small trochanter bone block belt loop titanium plate comprises atitanium plate 1 and awire loop 3; as shown in fig. 1, thetitanium plate 1 is a curved surface matched with the surface of the small trochanter bone block, and the periphery of the titanium plate is smooth; thetitanium plate 1 penetrates along the thickness direction to form twoloop holes 11, and theloop 3 penetrates through theloop holes 11; the two ends of thetitanium plate 1 are symmetrically provided withtoothed nails 12, and thetoothed nails 12 are arranged on the concave surface of thetitanium plate 1.Titanium board 1 has curved surface structure, periphery rounding off and smooth and set up thedentate peg 12, can stretch out, paste and obey on thighbone lesser trochanter bone surface, has solved the fixed problem of the lesser trochanter of inside wall when unstable fracture between traditional intramedullary fixation treatment thighbone lesser trochanter.

Example 2

The foldable belt loop titanium plate for the small trochanter bone comprises atitanium plate 1 and awire loop 3; as shown in fig. 2, thetitanium plate 1 includes afirst folding plate 13 and asecond folding plate 14, thefirst folding plate 13 and thesecond folding plate 14 are connected through afolding mechanism 15, thefolding mechanism 15 is a male slot and a female slot hinged to each other through a rotating shaft, and a torsion spring is arranged in the male slot and the female slot, so as to facilitate the folding and the restoration of thetitanium plate 1. The twotab holes 11 are respectively symmetrically arranged on thefirst folding plate 13 and thesecond folding plate 14 in a centering manner through thefolding mechanism 15, and the twoteeth 12 are also symmetrically arranged on thefirst folding plate 13 and thesecond folding plate 14 in a centering manner through thefolding mechanism 15.

Example 3

The small trochanter bone block belt-loop titanium plate and the assembly thereof comprise the foldable belt-loop titanium plate in theembodiment 2, the assembly comprises anailing device 2, and thenailing device 2 is provided with asleeve 22 and aconveying plate 23; theconveying plate 23 is hinged with the end part of thesleeve 22, and two side plates extend outwards by taking the hinged point as a center; thesleeve 22 is hollow, apush rod 24 is arranged in the sleeve, and thepush rod 24 is connected with the two side plates and used for controlling the two side plates to be folded towards thesleeve 22 or unfolded towards the outside. In this embodiment, the two side plates of theconveying plate 23 are symmetrically disposed with a hinge point as a center, and thefirst folding plate 13 and thesecond folding plate 14 of thetitanium plate 1 are symmetrically disposed with thefolding mechanism 15 as a center.

Thenail feeding device 2 is further provided with ahandle 21, thehandle 21 is provided with a control part, one end of thepush rod 24 is connected with the control part, and the other end of the push rod is connected with the two side plates. In this embodiment, the control portion includes a screw, acoarse adjustment nut 26 and afine adjustment nut 27, thecoarse adjustment nut 26 is disposed at the end of thehandle 21, and thefine adjustment nut 27 is disposed on the sidewall of thehandle 21.

In this embodiment, the end of thesleeve 22 is provided with a sideplate accommodating portion 28, so that the side plate can be completely folded in the sideplate accommodating portion 28 when entering the bone canal, thereby reducing the cross-sectional area and facilitating the entry.

In this embodiment, one end of thepush rod 24 is hinged to two connectingrods 25, the two connectingrods 25 are hinged to the inner sides of the two side plates respectively, and when the two connectingrods 25 are in an expanded state, the two side plates are expanded outwards.

Thehandle 21 is provided with awire hole 29, thewire hole 29 is communicated with the interior of thesleeve 22, thesleeve 22 also has the function of guiding thewire loop 3, and thewire loop 3 can conveniently pass through the femur along with thetitanium plate 1.

Example 4

The lesser trochanter bone block strap titanium plate and the assembly thereof comprise the foldable strap titanium plate in theembodiment 2, the assembly comprises thenail feeding device 2 in theembodiment 3 and further comprises an outer side endtitanium plate 4, the outer side endtitanium plate 4 is arranged on the opposite side of thetitanium plate 1 on a femur, and thewire strap 3 is connected between the outer side endtitanium plate 4 and thetitanium plate 1. The outer side endtitanium plate 4 is provided with abase 41, and thebase 41 is used for being fixed with the femoral steel plate 5. The outer side endtitanium plate 4 is provided with a throughhole 42, and the throughhole 42 is used for thenail feeding device 2 to pass through.

Small rotor fixing operation:

1. resetting the small trochanter bone blocks by using a reset clamp in advance; drilling a cavity channel penetrating to the small trochanter bone block by using a drill through a guide hole of the reduction forceps;

2. after drilling, inserting the beltloop titanium plate 1 and thenailing device 2 of the outer side end titanium plate, wherein the beltloop titanium plate 1 is arranged at the front end of the conveyingplate 23 in a folded state, and thesleeve 22 of thenailing device 2 penetrates through the throughhole 42 of the outer side endtitanium plate 4 to enable the outer side endtitanium plate 4 to be positioned at the rear end of the beltloop titanium plate 1; after thenail feeding device 2 conveys the folded belt-loop titanium plate 1 to a target position, a control part (an adjusting nut) at ahandle 21 of thenail feeding device 2 is rotated to enable apush rod 24 to move and expand a conveyingplate 23, so that the belt-loop titanium plate 1 is driven to be expanded and attached to the surface of the femur lesser trochanter bone; abase 41 of thetitanium plate 4 at the outer side end on the other end corresponds to the nail hole on the steel plate 5, thetooth nail 12 is nailed into the bone block by a tensioning line, and the foldable beltloop titanium plate 1 vertically embraces the small trochanter bone block to finish fixation;

3. if an intramedullary nail is used, the binding wire is loosened, the intramedullary nail is inserted, and then tightened.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (13)

1. The utility model provides a little trochanter bone fragment belt tong "pan" titanium board which characterized in that: comprises a titanium plate and a wire loop; the titanium plate is a curved surface matched with the surface of the small trochanter bone block; the titanium plate penetrates along the thickness direction of the titanium plate to form two loop wire holes, and the loop wire penetrates through the loop wire holes; two ends of the titanium plate are provided with toothed nails which are arranged on the concave surface of the titanium plate.

2. The small trochanter bone fragment belt loop titanium plate as claimed in claim 1, wherein: the titanium plate comprises a first folding plate and a second folding plate, the first folding plate and the second folding plate are connected through a folding mechanism, and the two loop holes are respectively formed in the first folding plate and the second folding plate.

3. The small trochanter bone fragment belt loop titanium plate as claimed in claim 1, wherein: and a torsion spring is arranged in the folding mechanism.

4. The lesser trochanter bone fragment strap titanium plate and its component as claimed in any of claims 2 to 3, wherein: the assembly comprises a nail feeding device, wherein the nail feeding device is provided with a sleeve and a conveying plate; the conveying plate is hinged with the end part of the sleeve, and two side plates outwards extend by taking the hinged point as a center; the sleeve is hollow, a push rod is arranged in the sleeve, and the push rod is connected with the two side plates and used for controlling the two side plates to be folded towards the sleeve or unfolded towards the outside.

5. The small trochanter bone fragment strap titanium plate and assembly thereof according to claim 4, wherein: the nail feeding device is further provided with a handle, the handle is provided with an operation and control part, one end of the push rod is connected with the operation and control part, and the other end of the push rod is connected with the two side plates.

6. The small trochanter bone fragment strap titanium plate and assembly thereof according to claim 4, wherein: the end part of the sleeve is provided with a side plate accommodating part.

7. The small trochanter bone fragment strap titanium plate and assembly thereof according to claim 4, wherein: one end of the push rod is hinged with two connecting rods, the two connecting rods are hinged with the inner sides of the two side plates respectively, and when the two connecting rods are in a spreading state, the two side plates are unfolded outwards.

8. The small trochanter bone fragment strap titanium plate and assembly thereof according to claim 4, wherein: the two side plates of the conveying plate are symmetrically arranged by taking a hinge point as a center, and the first folding plate and the second folding plate of the titanium plate are symmetrically arranged by taking the folding mechanism as a center.

9. The small trochanter bone fragment strap titanium plate and assembly thereof according to claim 4, wherein: the control part is provided with an adjusting nut which comprises a coarse adjusting nut and a fine adjusting nut.

10. The small trochanter bone fragment strap titanium plate and assembly thereof according to claim 4, wherein: the handle is provided with a wire hole, and the wire hole is communicated with the inside of the sleeve.

11. The lesser trochanter bone fragment strap titanium plate and its component as claimed in any one of claims 1 to 3, wherein: the assembly comprises an outer side end titanium plate, the outer side end titanium plate is arranged on the opposite side of the titanium plate on the femur, and the wire loop is connected between the outer side end titanium plate and the titanium plate.

12. The small trochanter bone fragment strap titanium plate and assembly thereof according to claim 11, wherein: the outer side end titanium plate is provided with a base, and the base is used for being fixed with the femoral steel plate.

13. The small trochanter bone fragment strap titanium plate and assembly thereof according to claim 11, wherein: the outer side end titanium plate is provided with a through hole, and the through hole is used for the nail feeding device to pass through.

Images