CN217138179U

CN217138179U - Iliac bone cutting guide plate

Info

Publication number: CN217138179U
Application number: CN202220242460.5U
Authority: CN
Inventors: 吕晓鸣; 钟奕伟; 张�杰; 郑磊; 魏莉
Original assignee: Peking University School of Stomatology
Current assignee: Peking University School of Stomatology
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-08-09
Anticipated expiration: 2032-01-28

Abstract

The utility model discloses an ilium cuts bone baffle mainly includes: the cutting device comprises a guide plate body, a fixing piece, a cutting bracket and at least two limiting pieces, wherein the fixing piece is fixedly connected with the guide plate body and is provided with a bone nail through hole; the cutting bracket is connected with the first side surface of the guide plate body in a sliding manner; the limiting parts are fixedly connected with the first side face of the guide plate body, the limiting parts are arranged at intervals, and a cutting area is formed between every two adjacent limiting parts. The angle and the scope of bone are got in control that this application can be accurate, improve operation efficiency simultaneously for the ilium lamella operation is safer, swift, accurate, avoids the emergence of the source of origin fracture or bone perforation in the art.

Description

Iliac bone cutting guide plate

Technical Field

The utility model relates to an orofacial surgery operation utensil technical field, in particular to ilium cuts bone baffle.

Background

The ilium bone grafting technology is widely applied to maxillofacial surgery, many patients are saved, and normal maxillofacial functions are recovered. Traditionally, in the operation process of taking ilium, often use the artificial experience to intercept the method, the size of bone piece is difficult to master, if the bone saw is too deep in the process of taking the bone, deep pelvic cavity tissue can be injured or iatrogenic fracture or perforation of the femur can be caused, the shape of the bone piece of the artificial bone is irregular, the trimming is time-consuming, once the intercepting is too small, the intercepting needs to be carried out again, or the repairing effect is influenced, unnecessary wound is brought to the patient. And because the bone is got through artifical handheld bone saw operation, can't be fine hold get bone angle, scope etc. and the problem that the bone is got inadequately or excessively appears.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

In view of the above problem, the utility model aims at providing an ilium cuts bone baffle, angle and scope that the bone was got to control that can be accurate improve operation efficiency simultaneously for ilium lamella operation is safer, swift, accurate, avoids the emergence of the traditional chinese medical science source nature fracture or bone perforation in the art, the utility model discloses a following technical scheme.

(II) technical scheme

As a first aspect of the utility model, the utility model discloses an ilium cuts bone baffle, include:

a guide plate body;

the fixing piece is fixedly connected with the guide plate body, and a bone nail through hole is formed in the fixing piece;

the cutting bracket is connected with the first side surface of the guide plate body in a sliding mode;

the guide plate comprises a guide plate body, at least two limiting pieces and a cutting area, wherein the limiting pieces are fixedly connected with the first side face of the guide plate body, the limiting pieces are arranged at intervals, and the cutting area is formed between every two adjacent limiting pieces.

In one possible embodiment, the fence body is formed with a curved surface at an end of the fence body near the stop.

In a possible embodiment, a first cutting guide surface is formed on the side of the guide plate body facing away from the first side surface.

In a possible embodiment, an arc-shaped segment is formed on the limiting member, and the arc-shaped segment is located at one end of the limiting member connected with the guide plate body.

In a possible embodiment, the guide plate body is provided with a sliding groove, and the cutting support is slidably connected to the sliding groove.

In a possible embodiment, a slide bar is arranged on the cutting support, the slide bar is slidably connected in the sliding groove, and the slide bar extends along the length direction of the sliding groove.

In a possible implementation manner, the cross section of the sliding groove is a dovetail groove or a stepped groove, two end faces of the sliding groove respectively penetrate through the side wall of the guide plate body, and the sliding strip is matched with the sliding groove.

In a possible embodiment, the cutting support is provided with a mounting hole, and the mounting hole penetrates through the cutting support.

In a possible embodiment, the cutting support is detachably connected to the guide body, the first side forming a second cutting guide surface.

In a possible embodiment, the guide plate body, the fixing member, and the limiting member are of an integrally molded structure.

(III) advantageous effects

The utility model discloses an ilium cuts bone baffle has following beneficial effect:

1. the guide plate body, the fixing piece and the limiting piece in the ilium osteotomy guide plate are of an integrally formed structure through 3D printing, and are personalized and customized according to the requirements of patients;

2. a cutting area is formed between the adjacent limiting parts, so that the bone taking range is determined through the limiting parts, and the problem of excessive bone taking or over-small bone taking is avoided;

3. a plurality of curved surfaces are formed on one side surface of the ilium cutting guide plate, which is contacted with the ilium, so that the ilium cutting guide plate is more tightly attached to the ilium;

4. the guide plate body is provided with a first cutting guide surface and a second cutting guide surface, and one guide surface can be selected for cutting according to the actual condition of cutting the ilium, so that the shape of the cut ilium is regular, the cut is regular, and the later operation is facilitated;

5. the cutting support is provided with a sliding strip which is connected in the sliding groove in a sliding manner, and the sliding strip extends along the length direction of the sliding groove, so that the cutting support is prevented from falling off from the sliding groove and losing positioning and supporting functions when moving;

6. the cross section of the sliding groove is provided with a dovetail groove or a step groove and other similar structures, and the cutting support is prevented from falling off along the direction perpendicular to the moving direction.

Drawings

The embodiments described below with reference to the drawings are exemplary and intended to explain and illustrate the invention and should not be interpreted as limiting the scope of the invention.

Fig. 1 is a three-dimensional structure schematic diagram of an ilium osteotomy guide disclosed in the present invention;

fig. 2 is a schematic three-dimensional structure diagram of an iliac osteotomy guide having a plurality of position-limiting members according to the present invention;

fig. 3 is a schematic three-dimensional structural diagram of the curved surface of the iliac osteotomy guide and the arc-shaped section of the limiting member disclosed in the present invention;

FIG. 4 is a schematic three-dimensional view of an iliac osteotomy guide having a first cutting guide surface as disclosed herein;

fig. 5 is a three-dimensional structure diagram of an iliac osteotomy guide having a second cutting guide surface as disclosed in the present invention.

Reference numerals: 100. a guide plate body; 110. a first side surface; 120. a curved surface; 130. a chute; 140. a first cutting guide surface; 200. a fixing member; 210. perforating the bone nail; 300. cutting the stent; 310. mounting holes; 320. a slide bar; 400. a limiting member; 410. an arc-shaped section; 500. The ilium; 600. and cutting the power saw.

Detailed Description

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention.

It should be noted that: in the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are some, not all embodiments of the invention, and the embodiments and features of the embodiments in the present application may be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the invention.

A first embodiment of an iliac osteotomy guide of the present disclosure is described in detail below with reference to fig. 1-5. The embodiment is mainly applied to the iliac operation, the angle and the range of the bone can be accurately controlled by the iliac bone cutting guide plate in the operation, and the operation efficiency is improved, so that the iliac flap operation is safer, quicker and more accurate, and the occurrence of the traditional Chinese medicine source fracture or bone perforation in the operation is avoided.

As shown in fig. 1, the present embodiment mainly includes a fence body 100, a fixing member 200, a cutting bracket 300, and at least two stoppers 400.

Wherein, an end face of the guide plate body 100 is attached to the ilium 500, the fixing member 200 is fixedly connected to a side face of the guide plate body 100, the fixing member 200 is provided with a bone nail through hole 210, the guide plate body 100 is fixed to the ilium 500 by the bone nail through hole 210, the cutting bracket 300 is slidably connected to the first side face 120 of the guide plate body 100 and is located on an end face far away from the fixing member 200, the cutting bracket 300 is provided with a mounting hole 310, the mounting hole 310 penetrates through the cutting bracket 300, the diameter of the mounting hole 310 can allow the cutting power saw 600 to pass through, the cutting power saw 600 is mounted on the mounting hole 310, when the cutting power saw 600 is moved, the cutting bracket 300 slides on the guide plate body 100, thereby limiting the moving direction of the cutting power saw 600 and making the cutting surface thereof smoother, at least two limiting members are fixedly connected to the first side face 110 of the guide body, and the limiting members 400 are arranged at intervals, a cutting area is formed between the adjacent limiting parts 400, and the cutting power saw 600 can cut along the cutting area to take bones, so that the bone taking range is determined through the limiting parts 400, and the problem of excessive bone taking or undersize bone taking is avoided.

In a possible embodiment, according to actual requirements, a plurality of the limiting members 400 can be arranged, as shown in fig. 2, and two iliac osteotomy guides are combined, so that an iliac osteotomy guide with three limiting members 400 is obtained, thereby increasing the osteotomy range.

In the present application, the iliac osteotomy guide can set the cutting region according to the shape and range of the iliac 500 intercepted by the patient, that is, the interval between the position-limiting members 400 is set according to the actual requirement. The guide plate body 100, the fixing member 200 and the limiting member 400 in the iliac osteotomy guide plate are of an integrally formed structure printed through 3D printing, and the cutting support 300 is also formed through 3D printing. According to the requirements of patients, the ilium osteotomy guide plate is customized and can be formed by adopting a resin material and utilizing 3D printing.

In one possible embodiment, the guide body 100, the fixing member 200, and the limiting member 400 of the iliac osteotomy guide are formed as an integrally formed structure by 3D printing, and a plurality of curved surfaces are formed on a side surface of the iliac osteotomy guide contacting the iliac 500, so that the iliac osteotomy guide is more closely attached to the iliac 500.

In one possible embodiment, as shown in FIG. 3, the fence body 100 has a curved surface 120 formed thereon, the curved surface 120 being located at an end of the fence body 100 proximate to the stop 400.

In order to stably mount the iliac osteotomy guide on the iliac 500, the curved surface 120 formed in the same manner as the end surface of the iliac 500 is provided on the surface of the guide body 100 that is in contact with the iliac 500, so that the curved surface 120 of the guide body 100 can be completely in contact with the end surface of the iliac 500.

In one possible embodiment, as shown in FIG. 4, the fence body 100 is formed with a first cutting guide surface 140 on a side facing away from the first side surface 120.

Utilize the cutting support frame to fix the cut bone electric power saw that will have curved flat sword on the ilium cuts bone baffle, cut bone electric power saw can carry out trilateral cutting with the ilium that needs the intercepting in the cutting region, the straight edge of reselecting cuts bone electric power saw and cuts along the side that baffle body 100 deviates from cutting support 300 to the ilium that will need the intercepting is taken out, thereby makes the ilium shape of its intercepting more regular, and the incision is comparatively neat, the operation in the later stage of being convenient for.

In one possible embodiment, as shown in fig. 5, the cutting support 300 is detachably connected to the guide body, and the first side 120 constitutes a second cutting guide surface. If the ilium that needs the intercepting is when thin, utilize the cutting support frame to fix the cut bone electric power saw that has curved flat sword on the ilium cuts the bone baffle, cut bone electric power saw can carry out trilateral cutting with the ilium that needs the intercepting in the cutting region, remove cutting support 300 from baffle body 100 again, select straight sword to cut bone electric power saw and cut along the side that is equipped with cutting support 300 on the baffle body 100, thereby the ilium that will need the intercepting takes out, thereby make the ilium shape of its intercepting more regular, the incision is comparatively neat, the operation in the later stage of being convenient for, avoid because the intercepting ilium is too thin, lead to baffle body 100 to be too thin, and fix unstable condition on ilium 500.

In one possible embodiment, the limiting member 400 is formed with an arc segment 410, and the arc segment 410 is located at one end of the limiting member 400 connected to the guide plate body 100.

Because the junction of the two end faces of the ilium 500 is not in a right angle or regular shape, the junction of the limiting member 400 and the guide body 100 is set as the arc-shaped section 410, and the arc-shaped section 410 is set according to the shape of the actual junction of the ilium 500, so that the ilium cutting guide can be more closely attached to the ilium 500, and the thin ilium 500 can be conveniently cut.

In one possible embodiment, the fence body 100 is provided with a sliding groove 130, and the cutting bracket 300 is slidably coupled to the sliding groove 130.

Be equipped with spout 130 on the first side 120 of baffle body 100 along baffle body 100 width direction, spout 130 is located the one end of keeping away from locating part 400, cutting support 300 slides along the length direction of spout 130 to the cutter of drive installation on cutting support 300 removes, and then the cutting tool carries out horizontal cutting to ilium 500 between two locating parts 400, the cutting tool reciprocates in mounting hole 310, can remove along the length direction of locating part 400, thereby carry out vertical cutting.

In one possible embodiment, the cutting frame 300 is provided with a slide bar 320, the slide bar 320 is slidably connected in the slide groove 130, and the slide bar 320 extends along the length direction of the slide groove 130.

In order to enable the cutting support 300 to be better in sliding connection with the guide plate body 100, a sliding strip 320 is arranged on one side surface of the cutting support 300 far away from the mounting hole 310, the sliding strip 320 is connected in the sliding groove 130 in a sliding manner, and the sliding strip 320 extends along the length direction of the sliding groove 130, so that the cutting support 300 is prevented from falling off from the sliding groove 130 and losing positioning and supporting functions when moving.

In a possible embodiment, the cross section of the sliding groove 130 is a dovetail groove or a stepped groove, two end surfaces of the sliding groove 130 respectively penetrate through the side wall of the guide plate body 100, and the sliding strip 320 is adapted to the sliding groove 130.

In order to prevent the cutting support 300 from falling off along the direction perpendicular to the moving direction, the cross section of the sliding groove 130 is configured to be a dovetail groove or a step groove or other similar structures, the length of the sliding groove 130 is the width of the guide plate body 100, the sliding strip 320 is provided with a shape matched with the cross section of the sliding groove 130, so that the cutting support 300 can slide in the sliding groove 130, and meanwhile, the sliding groove 130 penetrates through the guide plate body 100, so that the cutting support 300 can be mounted and dismounted conveniently.

Specifically, the method comprises the following steps: when a patient needs to cut the ilium, firstly, according to the shape of the ilium of the patient and the size of the cut ilium, an ilium cutting guide plate suitable for the patient is made, so that a bending surface on a guide plate body is completely attached to the ilium surface of the patient, the distance between two limiting parts is the size of the cut ilium, according to the thickness of the cut ilium, an arc section at the joint of the limiting parts and the guide plate body is made, the ilium cutting guide plate is more stably fixed on the ilium, the made ilium cutting guide plate is fixed on the ilium through a fixing part, a cutting electric saw with a bent flat edge is fixed on the ilium cutting guide plate through a cutting support frame, the ilium needing to be cut in a cutting area is subjected to three-surface cutting, according to the thickness of the cut ilium, if the ilium is thick, the straight edge electric saw is used for cutting along one side deviating from the cutting support frame arranged on the guide plate body, so as to take out the cut ilium, if the ilium is thin, the cutting support is taken down from the ilium cutting guide plate, and the straight-edge bone cutting electric saw is used for cutting along one side face of the guide plate body, on which the cutting support is arranged, so that the cut ilium is taken out.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An iliac osteotomy guide, comprising:

a guide plate body;

2. The iliac osteotomy guide of claim 1, wherein said guide body defines a curved surface at an end of said guide body adjacent said stop.

3. The iliac osteotomy guide of claim 1, wherein a first cutting guide surface is formed on a side of said guide body facing away from said first side.

4. The iliac osteotomy guide of claim 1, wherein said stop member has an arcuate segment formed thereon, said arcuate segment being located at an end of said stop member that is connected to said guide body.

5. The iliac osteotomy guide of claim 1, wherein said guide body defines a slot, said cutting support being slidably coupled to said slot.

6. The iliac osteotomy guide of claim 5, wherein said cutting support has a slide bar slidably connected within said slot, said slide bar extending along a length of said slot.

7. The ilium osteotomy guide plate of claim 6, wherein the cross section of the sliding groove is a dovetail groove or a stepped groove, two end faces of the sliding groove respectively penetrate through the side wall of the guide plate body, and the sliding strip is matched with the sliding groove.

8. The iliac osteotomy guide of claim 1, wherein said cutting support includes a mounting hole therethrough.

9. The iliac osteotomy guide of claim 1, wherein said cutting support is removably coupled to said guide body, said first side defining a second cutting guide surface.

10. The iliac osteotomy guide of claim 2, wherein said guide body, said securing member, and said retaining member are of one-piece construction.