阅读说明：本技术 骨盆环骨板 (Pelvic ring bone plate ) 是由 傅德皓 赵聪 韩建炜 于 2021-08-20 设计创作，主要内容包括：本发明提出了一种骨盆环骨板,涉及骨科手术用医疗器械的技术领域,所述骨盆环骨板包括依次连为一体的耻骨段、髋臼段和骶髂关节段,所述耻骨段和骨盆的闭孔上部的部分髋臼段能够贴合在所述骨盆环的内侧,所述骨盆环骨板的其余部分能够沿骨盆环脊线贴合固定。本发明中的骨盆环骨板对于骨盆的多处骨折能够同时进行兼顾治疗,力学结构稳定,患者活动时有效避免发生骨骼移位,有效减少并发症。(The invention provides a pelvic ring bone plate, and relates to the technical field of medical instruments for orthopedic surgery. The pelvic ring bone plate can treat multiple fractures of the pelvis at the same time, has stable mechanical structure, effectively avoids the occurrence of bone displacement when a patient moves, and effectively reduces complications.)

1. The utility model provides a pelvis ring hone lamella, its characterized in that, pelvis ring hone lamella is including connecting pubis section (1), acetabular bone section (2) and sacroiliac joint section (3) as an organic whole in proper order, part acetabular bone section (2) on the obturator upper portion of pubis section (1) and pelvis can laminate the inboard of pelvis ring, the remaining part of pelvis ring hone lamella can be fixed along the laminating of pelvis ring ridge line.

2. The pelvic annulus bone plate according to claim 1, wherein the acetabular segment (2) comprises a first acetabular segment (21) and a second acetabular segment (22), the first acetabular segment (21) being located above the obturator foramen, the first acetabular segment (21) being contiguous with the pubic segment (1), the second acetabular segment (22) being contiguous with the sacroiliac segment (3), the second acetabular segment (22) being arcuate in width to the sacroiliac segment (3).

3. The pelvic ring bone plate according to claim 1, wherein the width of the pelvic ring bone plate is 8-15 mm.

4. The pelvic annulus bone plate according to claim 1, characterized in that the width of the acetabular segment (2) is greater than the width of the pubic segment (1) and the width of the sacroiliac segment (3).

5. The pelvic ring bone plate of claim 1, wherein the pelvic ring bone plate has a circumference that is greater than half of the circumference of the pelvic ring.

6. The pelvic ring bone plate according to claim 1, wherein the two side edges of the pelvic ring bone plate are provided with a plurality of grooves (4) in one-to-one correspondence.

7. The pelvic ring bone plate according to claim 1, wherein the pubis section (1) comprises a first pubis section (11), a pubis joint section (12) and a second pubis section (13) which are sequentially connected into a whole, the pubis joint section (12) is attached to a pubis joint (102), the first pubis section (11) and the second pubis section (13) are attached to pubis on two sides of the pubis joint (102), the second pubis section (13) is connected with the acetabulum section (2), the first pubis section (11) and the second pubis section (13) are provided with first screw holes (14), and the pubis joint section (12) is provided with sewing needle holes (15).

8. The pelvic ring bone plate according to claim 1, wherein the acetabular segment (2) is provided with three second screw holes (23), the central second screw hole (23) having an axis angle in the range of 5 ° -15 ° with the second screw holes (23) on both sides.

9. The pelvic ring bone plate according to claim 1, wherein the sacroiliac joint section (3) is provided with a third screw hole (31) on each side of the sacroiliac joint plane (103), the axis of the third screw holes (31) having an angle in the range of 70 ° to 90 °.

10. The pelvic annulus bone plate according to claim 1, characterized in that the free end of the sacroiliac segment (3) can be fitted in the middle of the sacrum.

Technical Field

The invention relates to the technical field of medical instruments for orthopedic surgery, in particular to a pelvic ring bone plate.

Background

Patients suffer from multiple fractures of the pelvic ring, and the common treatment scheme is that multiple fracture parts are treated separately and various bone plates are used. The pubis joint adopts a special pubis joint fixing plate, the iliopectineal line adopts a pelvis reconstruction arc bone plate, the sacroiliac joint adopts a sacroiliac joint inner fixing plate and the like, and all fixing plates are not connected. However, many pelvic fractures lead to unstable mechanical structure, and the bones may shift with the movement of the human body. The fracture is treated separately, the original anatomical features cannot be perfectly reproduced, and more ligament traction causes unstable factors to the fracture and delays the healing of fracture joints.

Disclosure of Invention

The pelvic ring bone plate provided by the invention can give consideration to multiple fractures of the whole pelvic ring, avoids the displacement of the fracture part of a patient during movement, has a stable mechanical structure, and can effectively reduce complications.

The invention provides a pelvic ring bone plate which comprises a pubis section, an acetabulum section and a sacroiliac joint section which are sequentially connected into a whole, wherein the pubis section and part of the acetabulum section at the upper part of a closed hole of a pelvis can be attached to the inner side of a pelvic ring, and the rest part of the pelvic ring bone plate can be attached and fixed along the spinal line of the pelvic ring.

As a preferable mode of the pelvic ring bone plate, the acetabulum section comprises a first acetabulum section and a second acetabulum section, the first acetabulum section is located above the obturator foramen, the first acetabulum section is adjacent to the pubis section, the second acetabulum section is adjacent to the sacroiliac joint section, and the second acetabulum section and the sacroiliac joint section are arc-shaped in width direction.

As a preferred scheme of the pelvic ring bone plate, the width of the pelvic ring bone plate is 8-15 mm.

As a preferable mode of the pelvic ring bone plate, the width of the acetabulum section is larger than the width of the pubis section and the width of the sacroiliac joint section.

As a preferable mode of the above-mentioned pelvic ring bone plate, the pelvic ring bone plate has a circumference larger than half of the circumference of the pelvic ring.

As a preferable scheme of the pelvic ring bone plate, a plurality of grooves corresponding to one another are formed in the edges of the two sides of the pelvic ring bone plate.

As an optimal scheme of the pelvic ring bone plate, the pubis section comprises a first pubis section, a pubis combined section and a second pubis section which are sequentially connected into a whole, the pubis combined section is attached to a pubis joint, the first pubis section and the second pubis section are attached to pubis on two sides of the pubis combination, the second pubis section is connected with the acetabulum section, first screw holes are formed in the first pubis section and the second pubis section, and sewing needle holes are formed in the pubis combined section.

As a preferable scheme of the pelvic ring bone plate, the acetabulum section is provided with three second screw holes, and the axial included angle between the second screw hole in the middle and the second screw holes on the two sides ranges from 5 degrees to 15 degrees.

As a preferred scheme of the pelvic ring bone plate, the sacroiliac joint section is provided with third screw holes at two sides of the sacroiliac joint surface, and the axial included angle of the two third screw holes ranges from 70 degrees to 90 degrees.

As a preferred version of the pelvic ring bone plate described above, the free end of the sacroiliac joint segment can be fitted to the middle of the sacrum.

The invention has the beneficial effects that:

the pelvic ring bone plate comprises a pubis section, an acetabulum section and a sacroiliac joint section which are sequentially connected into a whole, and the pelvic ring bone plate is positioned at the pelvic ring ridge line or the position close to the pelvic ring ridge line when in use, so that the pelvic ring bone plate can treat multiple fractures at the same time, has stable mechanical structure, effectively avoids the occurrence of bone displacement when a patient moves, and effectively reduces complications. The pelvic ring bone plate can also select and cut a section of bone plate corresponding to the fracture position according to the fracture position for fixation.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of a pelvic ring bone plate of the present invention;

FIG. 2 is a schematic view of the pelvic ring bone plate of the present invention secured to the pelvis;

fig. 3 is a schematic view of the measurement of pelvic parameters according to the present invention.

In the figure:

1. a pubic bone segment; 2. an acetabular segment; 3. a sacroiliac joint segment; 4. a groove;

11. a first pubic bone segment; 12. a pubic symphysis section; 13. a second pubic bone segment; 14. a first screw hole; 15. sewing a pinhole;

21. a first acetabular segment; 22. a second acetabular segment; 23. a second screw hole;

31. and a third screw hole.

100. The left pubic bone; 101. the right pubic bone; 102. pubic symphysis; 103. the sacroiliac joint surface.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The fracture and dislocation of the existing pelvic ring are treated by a plurality of bone plates separately in most treatment modes, and the fracture plate of the whole pelvic ring at a plurality of positions is not considered. However, many pelvic fractures can lead to unstable mechanical structure, and when a patient moves, the bones can be displaced, and in severe cases, various complications can be caused.

Referring to fig. 1-2, this embodiment provides a pelvic ring bone plate, and this pelvic ring bone plate includes pubic bone section 1, acetabular bone section 2 and sacroiliac joint section 3 that link as an organic whole in proper order, and the partial acetabular bone section 2 on the obturator hole upper portion of pubic bone section 1 and pelvis can laminate in the inboard of pelvic ring, can avoid the more place of pubic tubercle and obturator top muscle, and the remaining part of pelvic ring bone plate can be fixed along the laminating of pelvic ring ridge line.

The pelvic ring is a ring-shaped line consisting of the sacral promontory, the arcuate line, the pubic comb, the phalanx mass, and the upper edge of the pubic symphysis 102. The pelvic ring camberline is the camberline on the hip bone and the sacrum on the pelvic ring. The obturator foramen is a pair of oval macropores formed by the combination of the pubic ramus and the ischial ramus under the front of the pelvis of the human body.

Pelvic ring hone lamella is including linking pubis section 1, acetabular segment 2 and sacroiliac joint section 3 as an organic whole in proper order among this embodiment to be located pelvic ring crest line or its near position when the pelvic ring hone lamella uses, thereby can compromise the treatment simultaneously to the fracture of many places of pelvis, and mechanical structure is stable, and the patient effectively avoids taking place the skeleton to shift during the activity, effectively reduces the complication. The pelvic ring bone plate can also select and cut a section of bone plate corresponding to the fracture position according to the fracture position for fixation.

In this embodiment, the perimeter of the pelvic ring bone plate is greater than half the perimeter of the pelvic ring. The linear distance between two end points of the pelvic ring bone plate is 90 mm-120 mm; the perimeter of the pelvic ring bone plate 1 is 600 mm-700 mm.

Preferably, the linear distance between two end points of the pelvic ring bone plate 1 is 102 mm; the perimeter of the pelvic ring bone plate 1 is 652 mm.

Specifically, in order to obtain the above technical parameters, in this embodiment, the measurement method of the current CT data is determined by referring to the measurement of the pelvis in the neet anatomical atlas for 100 pelvises 4 (50 men and 50 women), and the diameter, the transverse diameter, and the oblique diameter are measured; specifically, as shown in fig. 3, the right slant diameter 1 (S1), the right slant diameter 2 (S2), the left slant diameter (S3), the left slant diameter 2 (S4), the lateral diameter 1 (S5), the lateral diameter 2 (S6), and the diameter (S7) are measured, respectively.

Finally, obtaining the linear distance between the end points as 102 mm; the perimeter of the pelvic ring bone plate is 652 mm.

Wherein, pubis section 1 is including linking first pubis section 11, pubis joint section 12 and the second pubis section 13 as an organic whole in proper order, and the laminating of pubis joint section 12 is in the pubis and unites 102 department, and the pubis of first pubis section 11 and the laminating of second pubis section 13 is on the pubis of the pubis and unite 102 both sides, and second pubis section 13 is connected with acetabulum section 2, and in this embodiment, first pubis section 11 is connected with right pubis 101, and second pubis section 13 is connected with left pubis 100. The free end of the sacroiliac joint section 3 can fit in the middle of the sacrum, in particular, the end of the sacroiliac joint section 3 lies on the sacral medial axis. Since the pubic segment 1 corresponds to the pubic region on both sides of the pubic symphysis 102, the circumference of the pelvic ring bone plate is greater than half of the circumference of the pelvic ring. However, the length of the pelvic ring bone plate can be designed according to specific conditions, and the pelvic ring bone plate can be broken according to fracture conditions during operation.

First pubis section 11 and second pubis section 13 all are equipped with first screw hole 14, are equipped with seam needle hole 15 on the pubis union section 12. Be provided with two first screw holes 14 on the first pubis section 11, be provided with two first screw holes 14 on the second pubis section 13, first screw hole 14 is the universal hole, satisfies the not equidirectional implantation of screw in the art, can provide better bone and control power and stability, and the operation is nimble simple more, shorten the operation time.

Acetabular segment 2 is located the regional oblique top of acetabular bone, including first acetabular segment 21 and second acetabular segment 22, first acetabular segment 21 is located the top of obturator, first acetabular segment 21 borders on with pubic bone section 1, second acetabular segment 22 borders on with sacroiliac joint section 3, second acetabular segment 22 is the arc with the width direction of sacroiliac joint section 3, can guarantee that second acetabular segment 22 and sacroiliac joint section 3 all laminate with pelvic ring ridge line, the bone that can make the pelvic ring fracture draws close to the hone lamella actually, play the effect of resetting the pelvic ring.

In the embodiment, the width of the pelvic ring bone plate is 8 mm-15 mm. Wherein, the width of acetabular segment 2 is greater than the width of pubic bone section 1 and the width of sacroiliac joint section 3, because the power that acetabular segment 2 received the thighbone when the patient walked is great, here widens and avoids the fracture of acetabular segment 2 of pelvis ring bone plate. Specifically, the width of the acetabular segment 2 is 1mm-3mm wider than the width of the pubic segment 1 and the width of the sacroiliac joint segment 3.

The acetabulum section 2 is provided with three second screw holes 23, the axial included angle range of the middle second screw hole 23 and the second screw holes 23 at two sides is 5-15 degrees, the middle second screw hole 23 is not provided with screws for fixing, the second screw holes 23 at two sides are fixed by cortical screws, and the cortical screws are respectively screwed in the opposite directions to avoid the position of an acetabulum socket, so that the firmness of the acetabulum is ensured; meanwhile, the cortical bone screw can compact the fracture line.

The second screw hole 23 is a universal pressurizing composite hole, can realize pressurization of the acetabulum section 2 and adjustment of the screw insertion direction, can be combined with other fixing plates to form a combined plate, and is suitable for various fracture forms, such as fracture below an arched edge, fracture at a square region and the like.

The sacroiliac joint section 3 is provided with a third screw hole 31 at each of two sides of the sacroiliac joint surface 103, and the included angle of the axes of the two third screw holes 31 ranges from 70 degrees to 90 degrees, preferably 80 degrees. A plurality of third screw holes 31 are also arranged at other positions of the sacroiliac joint section 3, the third screw holes 31 are universal holes, the screw holes can be combined with other steel plates at will, the sacroiliac joint dislocation fracture mode is applicable, and the universal holes can meet the requirements of screw implantation in different directions in the operation.

The two side edges of the pelvic ring bone plate are provided with a plurality of grooves 4 which correspond one to one, and the width of the pelvic ring bone plate is narrower at the positions of the opposite grooves 4, so that the pelvic ring bone plate can be easily bent or broken, and the pelvic ring bone plate is convenient to use flexibly during surgery. In the present embodiment, the recessed groove 4 is provided between two adjacent screw holes. Because the groove 4 is arranged on the pelvic ring bone plate, the groove 4 is arc-shaped, so the pelvic ring bone plate is 8-shaped.

The central line of the screw holes is vertical to the ridge line, the distribution of the screw holes is irregular, and the distance between every two adjacent screw holes is 7-15 mm.

In conclusion, the bone plate is dissected and attached, the bone plate with the fracture at multiple positions of the whole pelvis ring is considered, each screw hole can be combined with other steel plates at will to form a combined plate, and the combined plate can be suitable for most fracture forms in the pelvis. The pelvic ring bone plate of this embodiment is divided into left side board and right side board, can set up respectively on the left side of pelvic ring and right side to can cover whole pelvic ring region.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.