CN217447975U - Locking fusion plate - Google Patents
Locking fusion plate Download PDFInfo
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- CN217447975U CN217447975U CN202220238420.3U CN202220238420U CN217447975U CN 217447975 U CN217447975 U CN 217447975U CN 202220238420 U CN202220238420 U CN 202220238420U CN 217447975 U CN217447975 U CN 217447975U
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- metatarsal
- wedge joint
- joint plate
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Abstract
The utility model relates to the technical field of medical equipment, specifically disclose a locking fusion board, including first metatarsal wedge joint board, second metatarsal wedge joint board, third metatarsal wedge joint board, a third connecting plate for connecting the near end of first metatarsal wedge joint board and the near end of second metatarsal wedge joint board, a second connecting plate for connecting the near end of first metatarsal wedge joint board and the far end of second metatarsal wedge joint board, a first connecting plate for connecting the far end of first metatarsal wedge joint board and the far end of second metatarsal wedge joint board, a fourth connecting plate for connecting the near end of second metatarsal wedge joint board and the near end of third metatarsal wedge joint board, a fifth connecting plate for connecting the far end of second metatarsal wedge joint board and the far end of third metatarsal wedge joint board. The contact surface of this fuse board and the shape phase-match on the skeleton surface of each contact need not to carry out the preflex to the steel sheet in the art, has practiced thrift operation time, and six bones are fixed simultaneously to the steel sheet of integration, and it is better to fuse the effect, and is fixed more firm.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a locking fusion board.
Background
The Lisfranc joint, the tarsometatarsal joint, is currently the joint between the forefoot and midfoot. Namely the joints formed by the first, second and third metatarsal bases and the respective cuneiform bones, and the joints formed by the fourth and fifth metatarsal bases and the cuboid bones. The metatarsal tarsal joints are involved in the medial longitudinal arch (first metatarsal and medial cuneiform), the lateral longitudinal arch (5 th metatarsal and cuboid) and the medial transverse arch (medial, lateral cuneiform and cuboid) of the foot, and play important roles in maintaining the normal morphology of the foot. Lisfranc joint injury, i.e., tarsometatarsal joint fracture-dislocation, is a generalized intra-articular injury.
Clinically, for Lisfranec lesions with obvious displacement, incision reduction and strong internal fixation are advocated. The internal fixation material mainly adopts the screw, but the screw fixation intensity is not enough and unstable, bears a burden with the patient after the operation and takes exercise down the function, appears restoring to the throne easily and loses or the screw fracture, finally leads to the operation failure. And the classic Lisfranec screw needs to be fixed across the joint, so that the metatarsus wedge joint and the articular surface cartilage between the wedge bones can be further aggravated to be damaged, and the osteoarthritis risk after postoperative trauma is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a locking fusion board aims at solving the technical problem that Lisfranc among the prior art harms fixed stability and intensity difference.
To achieve the above object, the present invention provides a locking fusion plate, including a first metatarsal wedge joint plate, a second metatarsal wedge joint plate, a third connecting plate for connecting the proximal end of the first metatarsal wedge joint plate and the proximal end of the second metatarsal wedge joint plate, a second connecting plate for connecting the proximal end of the first metatarsal wedge joint plate and the distal end of the second metatarsal wedge joint plate, a first connecting plate for connecting the distal end of the first metatarsal wedge joint plate and the distal end of the second metatarsal wedge joint plate, a fourth connecting plate for connecting the proximal end of the second metatarsal wedge joint plate and the proximal end of the third metatarsal wedge joint plate, and a fifth connecting plate for connecting the distal end of the second metatarsal wedge joint plate and the distal end of the third metatarsal wedge joint plate.
Wherein, the distal end of the first metatarsal wedge joint plate is provided with a first fixing hole, a second fixing hole and a third fixing hole for fixing the first metatarsal.
Wherein, the proximal end of the first metatarsal wedge joint plate is provided with a fourth fixing hole, a fifth fixing hole and a sixth fixing hole.
Wherein, the proximal end of the second metatarsal wedge joint plate is provided with a seventh fixing hole and an eighth fixing hole for fixing the middle cuneiform bone.
Wherein, the far end of the second metatarsal wedge joint plate is provided with a thirteenth fixing hole, a fourteenth fixing hole and a fifteenth fixing hole for fixing the second metatarsal.
Wherein, the proximal end of the third metatarsal wedge joint plate is provided with a ninth fixing hole and a tenth fixing hole for fixing a third wedge bone.
Wherein, the distal end of the third metatarsal wedge joint plate is provided with an eleventh fixing hole and a twelfth fixing hole for fixing the third metatarsal.
The utility model discloses a locking fusion board, through the space geometry form and the inboard wedge bone of first metatarsal wedge joint board and inboard wedge bone and first metatarsal contact surface facial morphology phase-match, namely the contact surface and the inboard wedge bone facial morphology of the near-end of first metatarsal wedge joint board match, the contact surface and the first metatarsal base portion facial morphology phase-match of the distal end of first metatarsal wedge joint board; the spatial geometry of the contact surfaces of the second metatarsal wedge joint plate with the middle cuneiform and the second metatarsal bone, namely the contact surface of the proximal end of the second metatarsal wedge joint plate is matched with the surface morphology of the middle cuneiform, and the contact surface of the distal end of the second metatarsal wedge joint plate is matched with the surface morphology of the base of the second metatarsal bone; the spatial geometry of the contact surface of the third metatarsal wedge joint plate with the lateral cuneiform and the third metatarsal bone, i.e. the contact surface of the proximal end of the third metatarsal wedge joint plate matches the surface morphology of the lateral cuneiform, and the contact surface of the distal end of the third metatarsal wedge joint plate matches the surface morphology of the base of the third metatarsal bone. The contact surface of this fusion board and the shape phase-match on the skeleton surface of each contact need not to carry out the preflex to the steel sheet in the art, has practiced thrift operating time greatly, avoids bending the influence to steel sheet intensity, and six bones are fixed simultaneously to the steel sheet of integration, and the contrast polylith steel sheet combines the use, and it is better to fuse the effect, and is fixed more firm.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the locking fusion plate of the present invention.
Fig. 2 is a schematic view of the installation and fixation of the locking fusion plate of the present invention.
1-first fixation hole, 2-second fixation hole, 3-third fixation hole, 4-fourth fixation hole, 5-fifth fixation hole, 6-sixth fixation hole, 7-seventh fixation hole, 8-eighth fixation hole, 9-ninth fixation hole, 10-tenth fixation hole, 11-eleventh fixation hole, 12-twelfth fixation hole, 13-thirteenth fixation hole, 14-fourteenth fixation hole, 15-fifteenth fixation hole, a-first metatarsal wedge joint plate, B-second metatarsal wedge joint plate, C-third metatarsal wedge joint plate, a-distal end of first metatarsal wedge joint plate, B-proximal end of first metatarsal wedge joint plate, C-proximal end of second metatarsal wedge joint plate, D-distal end of second metatarsal wedge joint plate, E-proximal end of third metatarsal wedge joint plate, F-the distal end of the third metatarsal wedge joint plate, I-the first connecting plate, II-the second connecting plate, III-the third connecting plate, IV-the fourth connecting plate, V-the fifth connecting plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and 2, the present invention provides a locking fusion plate, including a first metatarsal wedge joint plate a, a second metatarsal wedge joint plate B, a third metatarsal wedge joint plate C, a third connecting plate iii for connecting a proximal end B of the first metatarsal wedge joint plate and a proximal end C of the second metatarsal wedge joint plate, a second connecting plate ii for connecting a proximal end B of the first metatarsal wedge joint plate and a distal end D of the second metatarsal wedge joint plate, a first connecting plate i for connecting a distal end a of the first metatarsal wedge joint plate and a distal end D of the second metatarsal wedge joint plate, a fourth connecting plate iv for connecting a proximal end C of the second metatarsal wedge joint plate and a proximal end E of the third metatarsal wedge joint plate, and a fifth connecting plate v for connecting a distal end D of the second metatarsal wedge joint plate and a distal end F of the third wedge joint plate.
The distal end A of the first metatarsal wedge joint plate is provided with a first fixing hole 1, a second fixing hole 2 and a third fixing hole 3 for fixing a first metatarsal bone.
The proximal end B of the first metatarsal wedge joint plate is provided with a fourth fixing hole 4, a fifth fixing hole 5 and a sixth fixing hole 6.
The proximal end C of the second metatarsal wedge joint plate is provided with a seventh fixing hole 7 and an eighth fixing hole 8 for fixing the middle cuneiform bone.
The distal end D of the second metatarsal wedge joint plate is provided with a thirteenth fixing hole 13, a fourteenth fixing hole 14 and a fifteenth fixing hole 15 for fixing the second metatarsal.
The proximal end E of the third metatarsal wedge joint plate is provided with a ninth fixation hole 9 and a tenth fixation hole 10 for fixation of the third cuneiform bone.
The distal end F of the third metatarsal wedge joint plate is provided with an eleventh fixing hole 11 and a twelfth fixing hole 12 for fixing the third metatarsal.
The thickness of the locking fusion plate is 1.5 mm.
Inner walls of the first fixing hole 1, the second fixing hole 2, the third fixing hole 3, the fourth fixing hole 4, the fifth fixing hole 5, the sixth fixing hole 6, the seventh fixing hole 7, the eighth fixing hole 8, the ninth fixing hole 9, the tenth fixing hole 10, the eleventh fixing hole 11, the twelfth fixing hole 12, the thirteenth fixing hole 13, the fourteenth fixing hole 14, and the fifteenth fixing hole 15 are all provided with internal threads.
The locking fusion plate is made of a titanium alloy material, and the edge of the locking fusion plate is arranged in a blunt structure.
The fourteenth fixation hole 14 of the distal end D of the second metatarsal wedge joint plate is oriented from the second metatarsal towards the medial cuneiform bone, and this hole provides a hole location for the Lisfranc screw, which can be cut out or used without the Lisfranc screw, depending on the actual application scenario.
In this embodiment, the fusion plates include a first metatarsal wedge joint plate a, a second metatarsal wedge joint plate b, a third metatarsal wedge joint plate c, a first connecting plate i, a fifth connecting plate v, a third connecting plate iii, a fourth connecting plate iv, and a second connecting plate ii for connecting the medial cuneiform bone and the second metatarsal bone. The fusion plate is provided with a plurality of fixing holes for fixing the fusion plate on the first metatarsal bone, the inner cuneiform bone, the second metatarsal bone, the middle cuneiform bone, the third metatarsal bone and the outer cuneiform bone. Specifically, the spatial geometry of the contact surface of the first metatarsal wedge joint plate a with the medial cuneiform and the first metatarsal bone is matched with the surface morphology of the medial cuneiform and the first metatarsal bone, that is, the contact surface of the proximal end B of the first metatarsal wedge joint plate is matched with the surface morphology of the medial cuneiform, and the contact surface of the distal end a of the first metatarsal wedge joint plate is matched with the surface morphology of the first metatarsal bone base; the space geometrical morphology of the contact surfaces of the second metatarsal wedge joint plate b and the middle cuneiform bone and the second metatarsal bone is matched with the surface morphology of the middle cuneiform bone and the second metatarsal bone, namely the contact surface of the proximal end C of the second metatarsal wedge joint plate is matched with the surface morphology of the middle cuneiform bone, and the contact surface of the distal end D of the second metatarsal wedge joint plate is matched with the surface morphology of the base part of the second metatarsal bone; the spatial geometry of the contact surface of the third metatarsal wedge joint plate c with the lateral wedge bone and the third metatarsal bone is matched with the surface morphology of the lateral wedge bone and the third metatarsal bone, namely the contact surface of the proximal end E of the third metatarsal wedge joint plate is matched with the surface morphology of the lateral wedge bone, and the contact surface of the distal end F of the third metatarsal wedge joint plate is matched with the surface morphology of the base part of the third metatarsal bone. A first connecting plate I, a third connecting plate III and a second connecting plate II for connecting the medial cuneiform bone and the second metatarsal bone are arranged between the first metatarsal cuneiform joint plate a and the second metatarsal cuneiform joint plate b; and a fifth connecting plate V and a fourth connecting plate IV are arranged between the second metatarsal wedge joint plate b and the third metatarsal wedge joint plate c. Specifically, two ends of the first connecting plate i are respectively connected with a distal end a of the first metatarsal wedge joint plate and a distal end D of the second metatarsal wedge joint plate, two ends of the third connecting plate iii are respectively fixedly connected with a proximal end B of the first metatarsal wedge joint plate and a proximal end C of the second metatarsal wedge joint plate, two ends of the second connecting plate ii connecting the inner side wedge bone and the second metatarsal bone are respectively connected with a proximal end B of the first metatarsal wedge joint plate and a distal end D of the second metatarsal wedge joint plate, two ends of the fifth connecting plate v are respectively connected with a distal end D of the second metatarsal wedge joint plate and a distal end F of the third metatarsal wedge joint plate, and two ends of the fourth connecting plate iv are respectively fixedly connected with a proximal end C of the second metatarsal wedge joint plate and a proximal end E of the third metatarsal wedge joint plate. In particular, the proximal end B of the first metatarsal wedge joint plate is provided with three fourth fixing holes 4, five fixing holes 5 and six fixing holes 6 for fixing the medial cuneiform bone, the distal end A of the first metatarsal wedge joint plate is provided with three first fixing holes 1, second fixing holes 2 and third fixing holes 3 for fixing the first metatarsal bone, the proximal end C of the second metatarsal wedge joint plate is provided with two seventh fixing holes 7 and an eighth fixing hole 8 for fixing the middle cuneiform bone, the distal end D of the second metatarsal wedge joint plate is provided with three thirteenth fixing holes 13, fourteenth fixing holes 14 and fifteenth fixing holes 15 for fixing the second metatarsal bone, the proximal end E of the third metatarsal wedge joint plate is provided with two ninth fixing holes 9 and a tenth fixing hole 10 for fixing the lateral cuneiform bone, and the distal end F of the third metatarsal wedge joint plate is provided with two eleventh fixing holes 11 and a twelfth fixing hole 12 for fixing the third metatarsal bone. The holes of the fusion plate are provided with internal threads, the fourteenth fixing hole 14 on the second metatarsal wedge joint plate b of the fusion plate faces the lateral side of the metatarsal of the inner cuneiform bone to form a tension belt for fixing, so that a better fixing effect is achieved, the screw is driven into the inner cuneiform bone from the second metatarsal bone, the inner cuneiform bone is larger and is easier to drive, and the operation difficulty is reduced. The fusion plate is a titanium composite financial plate.
This fuse board fully designs according to asian human anatomy camber, thick 1.5mm for be equipped with the internal thread in all fixed orificess of fixed fusion board, the fixed orifices can be used for 2.7 mm's locking screw cooperation with the diameter, the screw of the set screw of fixed orifices configuration can be fixed to inboard cuneiform bone basilar part, be used for pressurizeing between metatarsal and cuneiform bone, improved the fusion rate and for the joint fusion provides better stability, fuse the flange reason and adopt the blunt design, reduce the stimulation to the soft tissue.
The contact surface of this fuse board and the shape phase-match on the skeleton surface of each contact need not to carry out the preflex to the steel sheet in the art, has practiced thrift operating time greatly, avoids bending the influence to steel sheet intensity, and six bones are fixed simultaneously to the steel sheet of integration, contrast polylith steel sheet and combine to use, and it is better to fuse the effect, and is fixed more firm.
In conclusion, the locking fusion plate adopts the anatomical design, so that the anatomical reduction is convenient, the fusion plate does not need to be pre-bent in the operation, the operation time is saved, and the influence of the bending on the plate strength is avoided. At least two screws are fixed on each bone and the fusion plate, the directions of the screws are not all one direction, but are crossed in space, at least two screws are fixed, the effect of preventing rotation can be achieved, and the screws can be effectively prevented from being withdrawn due to the fact that the screws are crossed in space. The second metatarsal wedge joint plate b is designed in the direction of a fourteenth threaded hole 14, so that the screw can penetrate through the second metatarsal from the back side of the second phalanx to be fixed to the inner side wedge bone, the screw is fixed on the tension side, the AO tension belt principle is met, a better fixing effect is achieved, meanwhile, an additional countersunk screw is not needed to be added, the interference of the screw is avoided, the screw is driven into the inner side wedge bone from the second metatarsal, the inner side wedge bone is larger, the screw is driven into the inner side wedge bone more easily, and the operation difficulty is reduced.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. A locking fusion plate is characterized in that,
the connecting device comprises a first metatarsal wedge joint plate, a second metatarsal wedge joint plate, a third connecting plate for connecting the proximal end of the first metatarsal wedge joint plate and the proximal end of the second metatarsal wedge joint plate, a second connecting plate for connecting the proximal end of the first metatarsal wedge joint plate and the distal end of the second metatarsal wedge joint plate, a first connecting plate for connecting the distal end of the first metatarsal wedge joint plate and the distal end of the second metatarsal wedge joint plate, a fourth connecting plate for connecting the proximal end of the second metatarsal wedge joint plate and the proximal end of the third metatarsal wedge joint plate, and a fifth connecting plate for connecting the distal end of the second metatarsal wedge joint plate and the distal end of the third metatarsal wedge joint plate.
2. A locking fusion plate according to claim 1 wherein,
the far end of the first metatarsal wedge joint plate is provided with a first fixing hole, a second fixing hole and a third fixing hole for fixing a first metatarsal bone.
3. The locking fusion plate of claim 1,
the proximal end of the first metatarsal wedge joint plate is provided with a fourth fixing hole, a fifth fixing hole and a sixth fixing hole.
4. A locking fusion plate according to claim 1 wherein,
and the proximal end of the second metatarsal wedge joint plate is provided with a seventh fixing hole and an eighth fixing hole for fixing the middle wedge bone.
5. The locking fusion plate of claim 1,
and the far end of the second metatarsal wedge joint plate is provided with a thirteenth fixing hole, a fourteenth fixing hole and a fifteenth fixing hole for fixing the second metatarsal bone.
6. A locking fusion plate according to claim 1 wherein,
and the proximal end of the third metatarsal wedge joint plate is provided with a ninth fixing hole and a tenth fixing hole for fixing a third wedge bone.
7. A locking fusion plate according to claim 1 wherein,
and the far end of the third metatarsal wedge joint plate is provided with an eleventh fixing hole and a twelfth fixing hole for fixing a third metatarsal bone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238420.3U CN217447975U (en) | 2022-01-28 | 2022-01-28 | Locking fusion plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238420.3U CN217447975U (en) | 2022-01-28 | 2022-01-28 | Locking fusion plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217447975U true CN217447975U (en) | 2022-09-20 |
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ID=83264156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220238420.3U Active CN217447975U (en) | 2022-01-28 | 2022-01-28 | Locking fusion plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217447975U (en) |
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2022
- 2022-01-28 CN CN202220238420.3U patent/CN217447975U/en active Active
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