阅读说明：本技术 锁定板 (Locking plate ) 是由 陈晋伟 刘崇兵 李俊峰 赖志敏 于 2020-12-11 设计创作，主要内容包括：本发明公开了锁定板,包括干部,该干部设有第一锁接孔,其特征在于：该干部的正面壁和背面壁之相邻两第一锁接孔的区域至少有一面壁上凹设有第一凹槽。它具有如下优点：在将锁定板锁定在骨骼处后能通过第一凹槽有效降低骨骼、肌肉的应力集中度,手术操作软组织损伤小,植入方便。(The invention discloses a locking plate, which comprises a cadre, wherein the cadre is provided with a first locking hole, and the locking plate is characterized in that: at least one wall of the area of the front wall and the back wall of the dry part adjacent to the two first locking holes is concavely provided with a first groove. It has the following advantages: after the locking plate is locked at the skeleton, the stress concentration of the skeleton and the muscle can be effectively reduced through the first groove, the soft tissue injury during operation is small, and the implantation is convenient.)

1. Lockplate, including cadre, this cadre is equipped with first lock hole, its characterized in that: at least one wall of the area of the front wall and the back wall of the dry part adjacent to the two first locking holes is concavely provided with a first groove.

2. A locking plate according to claim 1, characterized in that: the first groove is concavely arranged in the area of each two adjacent first locking holes of the front wall and the back wall of the dry part.

3. A locking plate according to claim 1, characterized in that: the first groove is concavely arranged in the area of two adjacent first locking holes on the front wall of the dry part, and the bottom of the first groove on the front wall is of a first arc-shaped section structure with an opening facing the back wall.

4. A locking plate according to claim 1, characterized in that: the first groove is concavely arranged in the area of two adjacent first locking holes of the back wall of the dry part, and the bottom of the first groove of the back wall comprises a second arc section with an opening facing the back wall and straight sections respectively connected to the two ends of the second arc section.

5. A locking plate according to claim 1, characterized in that: the area of each two adjacent first locking holes on the two side walls of the dry part is concavely provided with a second groove.

6. A locking plate according to claim 1, characterized in that: the side part of the cadre is provided with a suture groove, and the bottom of the suture groove is provided with a suture hole which is arranged in a penetrating way.

7. A locking plate according to any of claims 1 to 6, characterized in that: the head part and the dry part are arranged in a twisting way through the twisting part, and the front wall of the twisting part is also concavely provided with a yielding groove.

8. A locking plate according to claim 7, characterized in that: the twisting arrangement comprises the head part and the stem part which are arranged in a staggered manner in a first direction and a second direction, the first direction is arranged along a direction parallel to the thickness of the head part, the second direction is arranged along a direction perpendicular to the thickness of the head part, and the twisting arrangement also comprises an included angle formed between the head part and the stem part.

9. A locking plate according to claim 7, characterized in that: the front wall of the torsion part is arranged in a concave manner, the concave arrangement forms the abdicating groove, and the abdicating groove is arranged along the front wall of the torsion part in a penetrating manner.

10. A locking plate according to claim 9, characterized in that: the abdicating groove is of a structure with two large ends and a small middle.

11. A locking plate according to claim 9, characterized in that: the middle part of the abdicating groove is arranged in a concave way.

12. A locking plate according to claim 9, characterized in that: the cadre includes first cadre section, second cadre section and sets firmly twists reverse section between first cadre section and second cadre section, makes first cadre section and second cadre section also twist reverse the arrangement through twisting reverse section.

Technical Field

The invention relates to a medical instrument, in particular to a locking plate for treating bone fracture.

Background

An existing locking plate for fracture treatment, such as US patent database publication US10238438B2, a proximal humeral bone flap for promoting healing of fractures of the humerus of a human body, includes an upper portion having at least one screw hole for receiving an upper screw, the trajectory of the screw hole being oriented laterally to medially; a transition piece having at least one screw hole for receiving a medial screw, the transition piece integral with the upper piece and sufficiently curved to avoid a triangular tuberosity, the medial screw securing the transition piece along the lateral cortex of the humerus; and the lower portion has at least one screw hole for receiving a screw of the lower portion, the trajectory of the screw hole being in a front-rear direction, the lower portion being integral with the transition portion. The front wall and the back wall of the lower part are both of a plane structure, and the plane structure is easy to cause high stress concentration, so that the requirement of further improvement is met.

Disclosure of Invention

The present invention provides locking plates that overcome the deficiencies of locking plates of the background art.

The technical scheme adopted by the invention for solving the technical problem is as follows: the locking plate comprises a dry part, wherein the dry part is provided with a first locking hole, and at least one surface wall of the area of two adjacent first locking holes of the front surface wall and the back surface wall of the dry part is concavely provided with a first groove.

In one embodiment: the first groove is concavely arranged in the area of each two adjacent first locking holes of the front wall and the back wall of the dry part.

In one embodiment: the first groove is concavely arranged in the area of two adjacent first locking holes on the front wall of the dry part, and the bottom of the first groove on the front wall is of a first arc-shaped section structure with an opening facing the back wall.

In one embodiment: the first groove is concavely arranged in the area of two adjacent first locking holes of the back wall of the dry part, and the bottom of the first groove of the back wall comprises a second arc section with an opening facing the back wall and straight sections respectively connected to the two ends of the second arc section.

In one embodiment: the area of each two adjacent first locking holes on the two side walls of the dry part is concavely provided with a second groove.

In one embodiment: the side part of the cadre is provided with a suture groove, and the bottom of the suture groove is provided with a suture hole which is arranged in a penetrating way.

In one embodiment: the head part and the dry part are arranged in a twisting way through the twisting part, and the front wall of the twisting part is also concavely provided with a yielding groove.

In one embodiment: the twisting arrangement comprises the head part and the stem part which are arranged in a staggered manner in a first direction and a second direction, the first direction is arranged along a direction parallel to the thickness of the head part, the second direction is arranged along a direction perpendicular to the thickness of the head part, and the twisting arrangement also comprises an included angle formed between the head part and the stem part.

In one embodiment: the front wall of the torsion part is arranged in a concave manner, the concave arrangement forms the abdicating groove, and the abdicating groove is arranged along the front wall of the torsion part in a penetrating manner.

In one embodiment: the abdicating groove is of a structure with two large ends and a small middle.

In one embodiment: the middle part of the abdicating groove is arranged in a concave way.

In one embodiment: the cadre includes first cadre section, second cadre section and sets firmly twists reverse section between first cadre section and second cadre section, makes first cadre section and second cadre section also twist reverse the arrangement through twisting reverse section.

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

the region of two adjacent first lockhole of cadre's front wall and back wall has concave first recess that is equipped with on at least one face wall, can effectively reduce the stress concentration degree of skeleton, muscle through first recess after locating the lockplate locking in skeleton department, and the operation soft tissue injury is little, implants the convenience.

The region of every two adjacent first lock holes of the front wall and the back wall of cadre all is concavely equipped with above-mentioned first recess, can not only effectively reduce the stress concentration degree of skeleton, muscle, but also can effectively dodge the muscle, reduces the neural risk of damage.

Make head and cadre twist reverse through the portion of twisting and arrange, twist and be equipped with the groove of stepping down on the face wall of portion, arrange through twisting that the structure with the groove of stepping down dodges nerve, still concavely be equipped with the groove of stepping down because of the portion of twisting, by the groove cooperation of stepping down nerve, and, the groove of stepping down still plays the neural effect of location, then the neural effect of dodging is better, reduces the neural risk of damage, and the operation soft tissue damage is little, implants the convenience.

The head and the cadre are arranged in a staggered mode in the first direction and the second direction, the nerve avoiding effect is better through the staggered arrangement of the two directions, and muscles can be avoided.

An included angle is formed between the head part and the dry part, so that the avoiding effect is further improved, and the assembly convenience and the firm stability are improved.

The front wall of the torsion portion is arranged in an inwards concave mode, the inwards concave mode is arranged to form the abdicating groove, or the abdicating groove is of a structure with two large ends and a small middle part, or the middle part of the abdicating groove is arranged in an inwards concave mode, and processing and lifting are facilitated. Cadre includes first cadre section, the cadre section of second and twists reverse the section, makes first cadre section and the cadre section of second also twist reverse the arrangement through twisting reverse the section, can not only dodge neural and can dodge the tendon.

The cadre lateral part is established and is sewed up the groove, and the tank bottom of sewing up the groove is equipped with the hole of sewing up of running through arranging, is convenient for sew up, and the suture end can be arranged in sewing up the inslot, reduces the neural risk of damage, and operation soft tissue damage is little, implants the convenience.

Drawings

The invention is further described with reference to the following figures and detailed description.

FIG. 1 is a perspective view of a lock plate according to an embodiment.

FIG. 2 is a schematic view of a locking plate avoiding an axillary nerve according to embodiments of the present invention.

FIG. 3 is one of the schematic cross-sectional views of a lock plate according to the exemplary embodiments.

FIG. 4 is a second cross-sectional view of a locking plate according to the second embodiment.

FIG. 5 is a schematic view of a locking plate avoiding deltoid muscle according to an embodiment.

FIG. 6 is a schematic perspective view of a secondary locking plate in accordance with an exemplary embodiment.

FIG. 7 is a schematic diagram of a locking plate avoiding axillary nerves according to an embodiment of the present invention.

FIG. 8 is a schematic view of a locking plate dodging deltoid according to an embodiment of the present invention.

FIG. 9 is a schematic perspective view of a triple lock plate according to an embodiment.

FIG. 10 is a schematic perspective view of a quad lock plate, according to an example embodiment.

FIG. 11 is a schematic perspective view of a five-lock plate according to an example embodiment.

FIG. 12 is a schematic perspective view of a hexa-locking plate according to an example embodiment.

FIG. 13 is a partial perspective view of a locking plate according to an embodiment of the present invention.

FIG. 14 is a schematic perspective view of an eight locking plate according to an example embodiment.

Fig. 15 is a schematic cross-sectional view of C-C of fig. 14.

FIG. 16 is a schematic perspective view of a nine lock plate according to an example embodiment.

Fig. 17 is a schematic cross-sectional view of D-D of fig. 16.

FIG. 18 is a schematic perspective view of a ten-lock plate according to an example embodiment.

Fig. 19 is a schematic cross-sectional view of E-E of fig. 18.

FIG. 20 is a schematic perspective view of an eleventh locking plate of an example embodiment.

Fig. 21 is a schematic cross-sectional view of F-F of fig. 20.

Fig. 22 is a partially enlarged schematic view of fig. 20.

Description of reference numerals: lockplate a, axillary nerve B1, deltoid B2; a head part 1, a dry part 2, a torsion part 3 and a yielding groove 31; a second lock hole 11; a first locking hole 21, a suture hole 22; first grooves 231, 232, first arc segment structure 2311, second arc segment 2321, straight face segment 2322, second groove 233; a first stem section 23, a second stem section 24, a torsion section 25; a concave structure 32; the groove 221 is sewn.

Detailed Description

Example one

Referring to fig. 1, 2 and 5, the proximal humerus fracture fixation device includes a locking plate a and fixing screws. This lockplate includes head 1, cadre 2 and sets firmly torsion portion 3 between head 1 and cadre 2, makes head 1 and cadre 2 twist reverse the arrangement through torsion portion 3, should twist reverse the arrangement and include: the head part 1 and the trunk part 2 are arranged in a staggered manner in a first direction and a second direction, and an included angle is formed between the head part 1 and the trunk part 2, the first direction is arranged along a direction parallel to the thickness of the head part 1, and the second direction is arranged along a direction perpendicular to the thickness of the head part 1. The front wall of the torsion part 3 is also concavely provided with an abdicating groove 31, and the axillary nerve B1 is abducted through the structure of the torsion arrangement and the abdicating groove 31. In the process of surgical treatment: the head 1 of the locking plate A is placed on the lateral surface of the humerus, the abduction groove 31 of the torsion part 3 corresponds to the shape walking part of the axillary nerve B1, the torsion structure and the abduction groove 31 of the torsion part 3 enable the locking plate A to start to have a torsion radian at the shape walking part of the axillary nerve (5-8 cm away from the near end of the locking plate A), and the cadre 2 can be placed around the front side of the humerus, thereby utilizing the torsion structure of the torsion part 3 and the abduction groove 31 to avoid the axillary nerve B1 and the deltoid B2, realizing the minimally invasive small incision deltoid incision path, avoiding the peeling of the soft tissue of the tendon of the deltoid, reducing the complications of postoperative soft tissue adhesion, joint stiffness and the like, further providing guarantee for the functional prognosis of the later-stage joint replacement patient through the internal fixation operation of the operation path, moreover, the shape structure of the torsion structure and the abdication groove 31 enable the locking plate A to better resist the force of torsion of the humeral shaft, and improve the fixing strength.

The head portion 1 is provided with a second locking hole 11, the stem portion 2 is provided with a first locking hole 21, and the fixing screw is matched with the first locking hole 11 and the second locking hole 21. In the concrete structure: the head part 1 is provided with seven second locking holes 11, and each second locking hole is provided with a fixed angle of 90-130 degrees so as to realize that a spread angle fixing screw is adopted, so that the humeral head can be effectively supported, and the inversion and collapse are prevented; the stem 2 is provided with three first locking holes 21. The side of the cadre part 2 is provided with a suture hole 22 to suture and fix the biceps of the humerus, so as to neutralize the strength of the muscle and increase the fixing effect. This head 1, cadre 2 and torsion portion 3 integrated into one piece, if by steel sheet integrated into one piece, 2 tip of cadre are gradually thin to be arranged to can realize the wicresoft and insert, with can be at the preceding side MIPPO minimal access surgery implantation screw of humerus, avoid the peeling off to the soft tissue, remain the blood circulation supply, in order to do benefit to the healing of fracture.

In this embodiment: the front wall of the torsion part 3 is arranged in a concave manner, the concave arrangement forms the abdicating groove 31, the abdicating groove 31 is arranged along the front wall of the torsion part 3 in a penetrating manner, the depth of the abdicating groove 31 is 5-15mm, the abdicating groove 31 can abdicating the axillary nerve, the interference to the axillary nerve is reduced, and the normal limb function is kept.

Referring to fig. 3 and 4, the areas of the two adjacent first locking holes 21 of the front wall and the back wall of the dry part 2 are both concavely provided with first grooves 231, 232, the bottom of the first groove 231 of the front wall is a first arc-shaped section structure 2311 with an opening facing downward the back wall, the bottom of the first groove 232 of the back wall comprises a second arc-shaped section 2321 with an opening facing downward the back wall and straight sections 2322 respectively connected to two ends of the second arc-shaped section, on one hand, the areas of the two adjacent first locking holes 21 of the front wall and the back wall are both concavely provided with the first grooves 231, 232, after being locked on the humerus, the stress concentration of humerus muscles and muscle can be effectively reduced through the first grooves, so as to effectively avoid deltoid muscles, reduce the risk of damaging the axillary nerve, and reduce the soft tissue injury during the operation, so that the implantation is convenient, on the other hand, the bottom of the first groove 231 is a first arc-shaped section structure 2311, so that the effect of reducing the stress concentration is better, the groove bottom of the first groove 232 of the back wall comprises a second arc-shaped section 2321 and straight sections 2322 respectively connected to two ends of the second arc-shaped section, so that the effect of reducing stress concentration is better, and the avoidance effect is better. The area of every two adjacent first locking holes 21 of the two side walls of the cadre 2 is concavely provided with a second groove 233, so as to further avoid axillary nerves and reduce the stress concentration.

According to needs, can set up and aim fixed module and realize the operation to reduce the damage to the soft tissue, avoid the screw to twist the in-process and appear sliding tooth phenomenon, ensure that the screw of implanting is unanimous with presetting the angle, do not have the screw and wear out the risk.

Example two

It differs from the first embodiment in that: referring to fig. 6 to 8, the dry portion 2 includes a first dry portion section 23, a second dry portion section 24, and a twisting section 25 fixedly disposed between the first dry portion section 23 and the second dry portion section 24, the first dry portion section 23 and the second dry portion section 24 are also twisted by the twisting section 25, and the structure of the twisting section 25 may be the same as or different from that of the twisting portion 3.

This first cadre section 23 lateral part and the 24 lateral parts of second cadre section all are equipped with suture hole 22, and suture hole 22 of first cadre section 23 can be sewed up fixedly to the humerus biceps, and suture hole 22 of second cadre section 24 can be restoreed the rotator cuff and sew up fixedly, has neutralized the strength of muscle, increases fixed effect.

EXAMPLE III

It differs from the first embodiment in that: referring to fig. 9, the relief grooves 31 of the torsion portion 3 have a structure with two large ends and a small middle.

Example four

It differs from the second embodiment in that: referring to fig. 10, the relief grooves 31 of the torsion portion 3 have a structure with two large ends and a small middle.

EXAMPLE five

It differs from the first embodiment in that: referring to fig. 11, the middle of the abdicating groove 31 is concavely arranged to form a concave structure 32, the notch of the concave structure 32 is a parallelogram structure, and the diagonal ends of the two opposite sides respectively correspond to the corners of the two ports of the abdicating groove 3, so that the abdicating effect is better and the operation locking is convenient.

EXAMPLE six

It differs from the second embodiment in that: referring to fig. 12, the middle of the abdicating groove 31 is concavely arranged to form a concave structure 32, the notch of the concave structure 32 is a parallelogram structure, and the diagonal ends of the two opposite sides respectively correspond to the corners of the two ports of the abdicating groove 3. And, the front and back walls of the stem 2 are located in several first locking holes 21 in the rear of the stem: the first grooves 231 and 232 are recessed in the area of each two adjacent first locking holes 21.

EXAMPLE seven

It differs from the sixth embodiment in that: referring to fig. 13, the head, the first shaft section side and the second shaft section side are all provided with a suture groove 221, the bottom of the suture groove 221 being provided with at least one suture hole 22 arranged therethrough.

Example eight

Referring to fig. 14 and 15, the sixth difference from the embodiment is that: the locking plate M is a locking plate of a distal humerus fracture fixation device, comprising a stem 2, which stem 2 is provided with a plurality of first locking holes 21. In the other first locking holes except the three first locking holes 21 close to the head part of the front wall and the back wall of the dry part 2, a first groove 231 and a first groove 232 are concavely arranged in the area of each two adjacent first locking holes 21, the bottom of the first groove 231 of the front wall is of a first arc-shaped section structure with an opening facing downwards and the bottom of the first groove 232 of the back wall comprises a second arc-shaped section with an opening facing downwards and straight sections respectively connected to the two ends of the second arc-shaped section. The two side walls of the dry portion 2 are recessed with a second groove 233 in the area of each two adjacent first locking holes 21.

Example nine

Referring to fig. 16 and 17, the sixth difference from the embodiment is that: the locking plate N is a locking plate of an olecranal fracture fixation device, and the locking plate comprises a stem 2, and the stem 2 is provided with a plurality of first locking holes 21. In the front wall and the back wall of the dry part 2, except for a plurality of first locking holes 21 close to the head part, the rest first locking holes are provided with first grooves 231 and 232 in a concave manner in the area of every two adjacent first locking holes 21, the groove bottom of the first groove 231 of the front wall is of a first arc-shaped section structure with an opening facing downwards on the back wall, and the groove bottom of the first groove 232 of the back wall comprises a second arc-shaped section with an opening facing downwards on the back wall and straight sections respectively connected with two ends of the second arc-shaped section. The two side walls of the dry portion 2 are recessed with a second groove 233 in the area of each two adjacent first locking holes 21.

Example ten

Referring to fig. 18 and 19, it is different from the sixth embodiment in that: the locking plate O is a locking plate of a distal femoral lateral fracture fixation device, the locking plate comprising a stem 2, the stem 2 being provided with a plurality of first locking holes 21. In the front wall and the back wall of the dry part 2, except for a plurality of first locking holes 21 close to the head part, the rest first locking holes are provided with first grooves 231 and 232 in a concave manner in the area of every two adjacent first locking holes 21, the groove bottom of the first groove 231 of the front wall is of a first arc-shaped section structure with an opening facing downwards on the back wall, and the groove bottom of the first groove 232 of the back wall comprises a second arc-shaped section with an opening facing downwards on the back wall and straight sections respectively connected with two ends of the second arc-shaped section. The two side walls of the dry portion 2 are recessed with a second groove 233 in the area of each two adjacent first locking holes 21.

EXAMPLE eleven

Referring to fig. 20 to 22, it is different from the sixth embodiment in that: the locking plate P is a locking plate of a distal anterolateral tibial fracture fixation device and comprises a head 1 and a stem 2. The stem 2 is provided with a plurality of first lock apertures 21. In the front wall and the back wall of the dry part 2, except for a plurality of first locking holes 21 close to the head part, the rest first locking holes are provided with first grooves 231 and 232 in a concave manner in the area of every two adjacent first locking holes 21, the groove bottom of the first groove 231 of the front wall is of a first arc-shaped section structure with an opening facing downwards on the back wall, and the groove bottom of the first groove 232 of the back wall comprises a second arc-shaped section with an opening facing downwards on the back wall and straight sections respectively connected with two ends of the second arc-shaped section. The two side walls of the dry portion 2 are recessed with a second groove 233 in the area of each two adjacent first locking holes 21. The head 1 is provided with a suture slot 221, the slot bottom of the suture slot 221 being provided with at least one suture hole arranged therethrough.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.