CN210811457U

CN210811457U - Combined compression locking bone plate and compression locking screw

Info

Publication number: CN210811457U
Application number: CN201920923127.9U
Authority: CN
Inventors: 房志刚; 王文波; 李平敬
Original assignee: Dean Medical Technology Co ltd
Current assignee: Dean Medical Technology Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-06-23
Anticipated expiration: 2029-06-19

Abstract

The utility model provides a combined pressurization locking coaptation board and pressurization locking screw, coaptation board include the hook plate, the hook plate includes integrated into one piece's installation department and crotch portion, keep away from on the hook plate the one end swing joint of crotch portion has the fixed plate, the fixed plate with the linkage segment of hook plate evenly is equipped with a plurality of pressurization holes and second locking screw hole, second locking screw hole corresponds to be established the below in pressurization hole. The pressurizing locking screw comprises a pressurizing section, a first locking section and a second locking section which are connected in sequence. The utility model provides a combined pressurization locking coaptation board, including hook plate and fixed plate two parts, all lock alone when fixed in each part, certain slip removal can be produced between two parts boards, and the sliding part is the integrated design in pressurization hole and locking hole, can directly lock after the pressurization, and pressurization and locking are accomplished in one step, make things convenient for clinical operation.

Description

Combined compression locking bone plate and compression locking screw

The technical field is as follows:

the utility model relates to the technical field of medical equipment, especially, relate to a combined pressurization locking coaptation board and pressurization locking screw.

Background art:

distal radius fractures present a series of unique fixation problems, and are distinct from fractures in most other locations. The distal fracture fragment is around the joint and is usually small. The close proximal arrangement of tendons and sheaths prevents the use of large, thick steel plates. The distal fracture fragment is too thin to provide adequate thread retention for the bone screw. Screwing bone screws into the distal fracture fragment is likely to result in iatrogenic comminution of the bone fragment. In clinic, radius fracture needs to be treated by using a radius bone fracture plate, although a bone fracture plate for treating the far-end volar side of a radius exists in clinic at present, tendons can be damaged to different degrees at the far end, and the conventional internal fixation locking compression bone fracture plate is pressed and locked step by step, so that the operation is inconvenient, the tendons can be damaged to different degrees, the fracture fixation is not firm enough, and the fracture healing time is long.

The utility model has the following contents:

the utility model aims at the defect to prior art, provide a combined pressurization locking coaptation board and pressurization locking screw that can solve above-mentioned problem.

Realize the utility model discloses the technical scheme of purpose is: the utility model provides a combined pressurization locking coaptation board, includes the hook plate, the hook plate includes integrated into one piece's installation department and crotch portion, evenly be equipped with a plurality of first locking screw holes along the central line on the installation department, keep away from on the hook plate the one end swing joint of crotch portion has the fixed plate, the fixed plate with the linkage segment of hook plate evenly is equipped with a plurality of pressurization holes and second locking screw hole, second locking screw hole corresponds to be established the below in pressurization hole.

Furthermore, the hook plate and the fixed plate are movably connected through a sliding groove and a sliding part, and the sliding part is inserted into the sliding groove and can slide left and right in the sliding groove.

Further, the sliding groove is formed in the bottom of the hook plate, and the sliding portion is formed at one end of the fixing plate.

Further, the installation part comprises a horizontal section and a bending section bent upwards, the sliding groove is formed in one end of the horizontal section, the pressurizing hole is formed in the top end of the horizontal section, and the second locking threaded hole is formed in the sliding part.

Further, the sliding groove is formed at one end of the fixing plate, and the sliding portion is formed at one end of the hook plate.

Furthermore, after the fixed plate is inserted into the hook-shaped plate, the bottom of the fixed plate and the bottom of the hook-shaped plate are in the same plane, and the top of the fixed plate and the top of the hook-shaped plate are in the same arc surface.

Further, the pressurization holes include a first pressurization hole and/or a second pressurization hole.

Further, the first pressurizing hole comprises a first spherical section and a second spherical section, the second pressurizing hole comprises a third spherical section and a fourth spherical section which are symmetrical, a part of the third spherical section and a part of the fourth spherical section are overlapped along a symmetrical axis, and the third spherical section and the fourth spherical section are both equal to the diameter of the first spherical section.

Further, hook portion includes first hook portion and second hook portion, the open groove of a U type has between first hook portion and the second hook portion, first hook portion includes first bending section and first extension, first bending section with bending section fixed connection, first extension downwardly extending, second hook portion includes second bending section and second extension, the second bending section with bending section fixed connection, second extension downwardly extending.

Further, the pressurizing locking screw comprises a pressurizing section, a first locking section and a second locking section which are sequentially connected, wherein the pressurizing section is of a spherical structure and matched with the first pressurizing hole and the second pressurizing hole, the first locking section and the second locking section are both of threaded structures, the diameter of the first locking section is larger than that of the second locking section, the first locking section is matched with the second locking threaded hole, and the second locking section is matched with a bone wound.

The utility model relates to a combined pressurization locking coaptation board and pressurization locking screw's beneficial effect is:

the utility model provides a combined pressurization locking coaptation board, including hook plate and fixed plate two parts, all lock alone when fixed in each part, certain sliding movement can be produced between two parts boards, and the sliding part is the integrated design in pressurization hole and locking hole, can directly lock after the pressurization, and pressurization and locking are accomplished in one step, make things convenient for clinical operation, do not change the implantation mode of traditional operation. The hook-shaped structure is suitable for the end face of a bone, can fix a small bone, is wide in application range and does not depend on screw holding.

Description of the drawings:

figure 1 is a schematic structural diagram of the present invention,

figure 2 is a schematic view of the configuration of the front face of the hook plate,

figure 3 is a schematic view of the structure of the back of the hook plate,

figure 4 is a schematic view of the construction of the slide plate,

figure 5 is a schematic view of the structure of the pressurizing hole,

fig. 6 is a schematic view of the construction of the compression lock screw.

In the figure: 1 hook plate, 2 sliding plate, 3 sliding part, 4 pressurizing hole, 41 first pressurizing hole, 411 first spherical section, 412 second spherical section, 42 second pressurizing hole, 421 third spherical section, 422 fourth spherical section, 5 first locking threaded hole, 6 first hook part, 61 first bending section, 62 first extending section, 7 second hook part, 71 second bending section, 72 second extending section, 8U-shaped open slot, 9 bending section, 10 horizontal section, 11 sliding slot, 12 locking straight threaded hole, 13 second locking threaded hole, 14 second mounting part, 15 first locking section, 16 pressurizing section, 17 second locking section.

The specific implementation mode is as follows:

the following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

Example one

Referring to fig. 1, the combined compression locking bone fracture plate comprises a hook plate 1 and a fixing plate 2, wherein the fixing plate 2 is movably connected to the end part of the hook plate 1.

See fig. 2 to 4, hook plate 1 includes integrated into one piece's installation department and crotch portion, evenly be equipped with a plurality of first locking screw holes 5 along the central line on the installation department, crotch portion includes first crotch portion 6 and second crotch portion 7, open groove 8 of a U type has between first crotch portion 6 and the second crotch portion 7, first crotch portion 6 includes first bending section 61 and first extension section 62, first bending section 61 with bending section 9 fixed connection, first extension section 62 downwardly extending, second crotch portion 7 includes second bending section 71 and second extension section 72, second bending section 71 with bending section 9 fixed connection, second extension section 72 downwardly extending.

One end of the hook-shaped plate 1, which is far away from the hook part, is movably connected with a fixing plate 2, the fixing plate 2 and a connecting section of the hook-shaped plate 1 are uniformly provided with a plurality of pressurizing holes 4 and second locking threaded holes 12, preferably, the pressurizing holes 4 and the second locking threaded holes 12 are uniformly arranged along the central line, and the second locking threaded holes 12 are correspondingly arranged below the pressurizing holes 4.

Further, the hook plate 1 and the fixing plate 2 can have various connection modes and can be connected in a sliding mode, specifically, the hook plate 1 and the fixing plate 2 are movably connected through a sliding groove 11 and a sliding part 3, and the sliding part 3 is inserted into the sliding groove 11 and can slide left and right in the sliding groove 11. In addition, in order to be more attached to the bone, after the fixing plate 2 is inserted into the hook plate 1, the bottoms of the fixing plate 2 and the hook plate 1 are on the same plane, and the top of the fixing plate 2 is on the same arc surface.

In this embodiment, the sliding groove 11 is provided at one end of the hook plate 1, and the sliding portion 3 is provided at one end of the fixing plate 2. Specifically, this embodiment provides a specific implementation manner, the mounting portion of the hook plate 1 includes a horizontal section 10 and a bending section 9 bent upward, the sliding groove 11 is disposed at the bottom of the horizontal section 10, the pressure hole 4 is disposed at the top end of the horizontal section 10, and the second locking threaded hole 12 is disposed on the sliding portion 3. In addition, the sliding groove 11 can be arranged at the top or the middle of the horizontal section 10 according to actual conditions.

Referring to fig. 5, the pressurizing hole 4 may be the first pressurizing hole 41 or the second pressurizing hole 42, or may include both of them. The first pressurizing hole 41 has an angled slope pressurizing structure, and is a combination of a spherical surface and a cylindrical surface, and is a cylindrical surface formed by a ball moving along an inclined surface. The device comprises a first spherical section 411 and a second cylindrical section 412, wherein the bottom ends of the first spherical section 411 and the second cylindrical section 412 jointly form a first elongated hole. The distance from the bottom end of the first pressurizing hole 41 to the bottom end of the hook plate gradually increases from the first spherical section 411 to the second cylindrical section 412. The second pressurizing hole 42 is formed by two spherical surfaces, and can realize pressurizing in two directions. The second pressurizing hole 42 includes a third spherical segment 421 and a fourth spherical segment 422, which are symmetrical, wherein a portion of the third spherical segment 421 and a portion of the fourth spherical segment 422 are overlapped along the symmetry axis, the third spherical segment 421 and the fourth spherical segment 422 are both equal to the diameter of the first spherical segment 411, and the distance from the bottom end of the first spherical segment 411 to the bottom end of the hook plate is equal to the distance from the bottom end of the second spherical segment 412 to the bottom end of the hook plate. The bottom ends of the third spherical segment 421 and the fourth spherical segment 422 form a second elongated hole together, and the length of the second elongated hole is longer than that of the first elongated hole.

Referring to fig. 6, a compression locking screw comprises a compression section 16, a first locking section 15 and a second locking section 17 which are connected in sequence, wherein the compression section 16 is of a spherical structure and is matched with a first compression hole 41 and a second compression hole 42, the first locking section 15 and the second locking section are both of a threaded structure, the diameter of the first locking section 15 is larger than that of the second locking section 17, the first locking section 15 is matched with the second locking threaded hole 12, and the second locking section 17 is matched with a bone wound.

Example two

In addition, another embodiment is shown, in which the sliding groove is provided at one end of the fixing plate 2, and the sliding part is provided at one end of the hook plate 1 (not shown). Specifically, the fixed plate 2 may include a sliding section and a fixed portion 14 that are fixedly connected, the sliding groove is formed in the bottom of the sliding section, the pressurizing hole 4 is formed in the top end of the sliding section, the fixed portion 14 is provided with a third locking threaded hole 13, and the second locking threaded hole 12 is formed in the sliding portion.

A combined compression locking bone fracture plate comprises a hook plate 1 and a fixing plate 2, wherein each part is locked and fixed independently, when the bone fracture plate is used, a hook part can be inserted into a bone at the far end of a radius, a fracture section is pressurized through a rear pressurizing hole 4 in cooperation with a compression locking screw, a certain sliding movement can be generated between the hook plate 1 and the fixing plate 2, the sliding part is a combined design of the pressurizing hole 4 and a second locking threaded hole 12, the bone fracture plate can be directly locked after pressurization, and the pressurization and the locking are completed in one step, so that the clinical operation is facilitated. The bent hook part is inserted into the bone to prevent the rotation of the broken end of the radius far-end volar fracture, and an open groove 8 is formed between the first bent hook part 6 and the second bent hook part 7 to accommodate the tendon and reduce the damage to the tendon.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a combined pressurization locking coaptation board, includes hook plate (1), hook plate (1) includes integrated into one piece's installation department and crotch portion, evenly be equipped with a plurality of locking screw holes (5), its characterized in that along the central line on the installation department: keep away from on hook shaped plate (1) the one end swing joint of hook portion has fixed plate (2), fixed plate (2) with the linkage segment of hook shaped plate (1) evenly is equipped with a plurality of pressurization holes (4) and second locking screw hole (12), second locking screw hole (12) are correspondingly established the below in pressurization hole (4).

2. The combination compression-locking bone plate of claim 1, wherein: the hook plate (1) and the fixed plate (2) are movably connected through a sliding groove (11) and a sliding part (3), and the sliding part (3) is inserted into the sliding groove (11) and can slide left and right in the sliding groove (11).

3. The combination compression-locking bone plate of claim 2, wherein: the sliding groove (11) is formed in one end of the hook plate (1), and the sliding portion (3) is formed in one end of the fixing plate (2).

4. The combination compression-locking bone plate of claim 3, wherein: the installation department includes horizontal segment (10) and the crooked section (9) of upwards buckling, establish sliding tray (11) the bottom of horizontal segment (10), pressure hole (4) are established the top of horizontal segment (10), second locking screw hole (12) are established on sliding part (3).

5. The combination compression-locking bone plate of claim 2, wherein: the sliding groove is formed in one end of the fixing plate (2), and the sliding portion is formed in one end of the hook plate (1).

6. The combination compression-locking bone plate of claim 2, wherein: after the fixing plate (2) and the hook plate (1) are connected in an inserting mode, the fixing plate (2) and the bottom of the hook plate (1) are located on the same plane, and the top of the fixing plate is located on the same arc surface.

7. The combination compression-locking bone plate of claim 1, wherein: the pressure holes (4) comprise a first pressure hole (41) and/or a second pressure hole (42).

8. The combination compression-locking bone plate of claim 7, wherein: the first pressurizing hole (41) comprises a first spherical section (411) and a second spherical section (412), the second pressurizing hole (42) comprises a third spherical section (421) and a fourth spherical section (422) which are symmetrical, a part of the third spherical section (421) and a part of the fourth spherical section (422) are overlapped along a symmetry axis, and the third spherical section (421) and the fourth spherical section (422) are both equal to the diameter of the first spherical section (411).

9. The combination compression-locking bone plate of claim 4, wherein: hook portion includes first hook portion (6) and second hook portion (7), open groove (8) of a U type have between first hook portion (6) and second hook portion (7), first hook portion (6) include first bending section (61) and first extension section (62), first bending section (61) with bending section (9) fixed connection, first extension section (62) downwardly extending, second hook portion (7) include second bending section (71) and second extension section (72), second bending section (71) with bending section (9) fixed connection, second extension section (72) downwardly extending.

10. A compression locking screw for use in a combination compression locking bone plate of any one of claims 1 to 9, characterized in that: including pressurization section (16), first locking section (15) and the second locking section (17) that connect gradually, pressurization section (16) are spherical structure, and with first pressurization hole (41) and second pressurization hole (42) cooperate, first locking section (15) and second locking section (17) are the helicitic texture, and the diameter of first locking section (15) is greater than the diameter of second locking section (17), first locking section (15) with the cooperation of second locking screw hole (12), second locking section (17) cooperate with the skeleton wound.