CN215080276U

CN215080276U - Horizontal skull keyway

Info

Publication number: CN215080276U
Application number: CN202023271266.XU
Authority: CN
Inventors: 胡立人; 王志斌; 帖凯; 许伟; 杨颖林; 赵若愚; 杨静峰; 金朝亮; 薛花
Original assignee: Xi'an Kangtuo Medical Technology Co ltd
Current assignee: Xi'an Kangtuo Medical Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-12-10
Anticipated expiration: 2030-12-30

Abstract

The utility model provides a horizontal skull locked groove, include: the bone plate comprises a bone plate body, wherein the edge of the bone plate body is used for being mutually abutted and matched with the edge of a bone window of a skull, a plurality of grooves penetrating through the bone plate body are arranged on the edge of the bone plate body, the openings of the grooves face away from the bone plate body, the groove width direction of each groove is arranged along the edge of each groove, and the bone plate body further comprises a fixing device penetrating through the grooves and used for fixing the bone plate body and the skull. An object of the utility model is to provide a need not to process the recess at patient's skull, reduced the bone material of getting rid of patient's skull, reduce the horizontal type skull locked groove to patient's skull damage.

Description

Horizontal skull keyway

Technical Field

The utility model relates to the technical field of medical equipment, in particular to horizontal skull keyway.

Background

The skull is one of very important organs in a human body, and the layer of hard bone tissue protects the brain, maintains normal intracranial pressure and ensures that all life activities are carried out orderly. However, still some people in life may cause skull defect for some irresistible reasons, and the skull repair is required to be performed timely.

Skull repair is already a relatively routine and well-established operation in neurosurgery. The detailed steps of the skull repairing operation generally need to be fully prepared before the operation, the scalp is cut during the operation, the bone window of the skull is completely exposed, a repairing sheet is taken, the skull repairing operation is adjusted and reset according to the shape of the skull defect of a patient, and the titanium plate and the titanium nail are fixed to achieve the physiological anatomical reset.

When skull repair is carried out, the patch is difficult to fix, particularly for metal allergy patients, and the traditional screw fixing mode cannot be implemented; when the skull lock made of the non-metal material is used, the stability and the reliability of fixation are improved by processing skull locking grooves on the bone plates and the skull, the material can be perfectly matched with defective bone after being implanted, and the skull lock can be more firmly fixed after being specially designed; however, the skull lock groove is machined by removing the bone material of the skull, and certain damage is caused to the skull of a patient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a horizontal skull keyway, which solves the problems.

The utility model provides a horizontal skull locked groove, include: the bone plate comprises a bone plate body, wherein the edge of the bone plate body is used for being mutually abutted and matched with the edge of a bone window of a skull, a plurality of grooves penetrating through the bone plate body are arranged on the edge of the bone plate body, the openings of the grooves face away from the bone plate body, the groove width direction of each groove is arranged along the edge of each groove, and the bone plate body further comprises a fixing device penetrating through the grooves and used for fixing the bone plate body and the skull.

Preferably, the fixing device comprises connecting pieces, two connecting pieces are arranged on two sides of the bone plate respectively and are a first connecting piece and a second connecting piece respectively, a buckle structure used for fixing and tensioning the two connecting pieces is connected between the first connecting piece and the second connecting piece, and the buckle structure is accommodated in the groove.

Preferably, the buckle structure comprises a first sleeve ring fixedly connected to the first connecting piece and a second sleeve ring fixedly connected to the second connecting piece, and the outer wall of the first sleeve ring is in plug-in fit with the inner wall of the second sleeve ring; the clamping blocks are arranged on the outer wall of the first sleeve ring around the axis of the first sleeve ring, the section of each clamping block is a right triangle with a bevel edge facing the second sleeve ring, a plurality of clamping blocks are arrayed along the axis direction of the first sleeve ring, the outer wall of the second sleeve ring is provided with a clamping groove around the axis of the second sleeve ring, the section of each clamping groove is a right triangle with a bevel edge facing the first sleeve ring, a plurality of clamping blocks are arrayed along the axis direction of the first sleeve ring, and the clamping blocks are clamped and matched with the clamping grooves; the locking mechanism is used for drawing close and fixing the first connecting piece and the second connecting piece.

Preferably, the locking mechanism comprises a boss arranged on the second connecting sheet, the boss is provided with a threaded hole, the threaded hole is in threaded connection with a screw, and the end face of the screw head of the screw is in abutting fit with the surface of the first connecting sheet; an expansion mechanism is also included to prevent displacement between the bone plate and the skull.

Preferably, the tight mechanism expands is including the cover that expands, the cover inner wall that expands is equipped with first taper hole and second taper hole, first taper hole with second taper hole is coaxial and the tapering sets up opposite, the first frustum of first connection piece fixedly connected with, second connection piece fixedly connected with second frustum, first frustum outer wall with first taper hole inner wall butt cooperation, second frustum outer wall with second taper hole inner wall butt cooperation.

Preferably, the expansion sleeve is provided with a notch for disconnecting the expansion sleeve along the axial direction of the expansion sleeve.

Preferably, the expansion sleeve is made of soft materials.

Preferably, the two adjacent grooves form a group, and the group of grooves is simultaneously connected with the same first connecting sheet and the same second connecting sheet through a buckle structure;

the utility model has the advantages as follows: when the skull is repaired, the edge of the bone plate is processed into a groove penetrating through the bone plate, the bone plate with the groove processed at the edge is embedded into a bone window of the skull, the edge of the bone plate is abutted against the edge of the bone window of the skull, and the bone plate is fixedly connected with the skull through a fixing device;

the beneficial effects of the above technical scheme are: the fixing between the bone plate and the skull is realized only by using the groove processed on the bone plate, and the groove does not need to be processed on the skull of the patient, so that the bone material of the skull of the patient is reduced, and the damage to the skull of the patient is reduced.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a view of the overall structure of the embodiment of the present invention;

fig. 2 is a partial view of the embodiment a of the present invention;

fig. 3 is a partial view of the embodiment B of the present invention;

fig. 4 is a cross-sectional view of embodiment C-C of the present invention.

Wherein, 1, skull; 2. a bone plate; 3. a groove; 4. a first connecting piece; 5. a second connecting sheet; 6. a first collar; 7. a second collar; 8. a screw; 9. a boss; 10. a first frustum; 11. a second tapered platform; 12. and (5) expanding the sleeve.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

According to the embodiment of the present invention, as shown in fig. 1-4, there is provided a bone plate 2, the edge of the bone plate 2 is used for abutting and matching with the edge of the bone window of the skull 1, the edge of the bone plate 2 is provided with a plurality of grooves 3 penetrating through the bone plate 2, the openings of the grooves 3 face away from the bone plate 2, the width direction of the grooves 3 is arranged along the edge of the grooves 3, and the present invention further comprises a fixing device penetrating through the grooves 3 and used for fixing the bone plate 2 and the skull 1;

the working principle of the technical scheme is as follows: when the skull 1 is repaired, the edge of the bone plate 2 is processed with the groove 3 penetrating through the bone plate 2, the bone plate 2 with the edge processed with the groove 3 is embedded into a bone window of the skull 1, so that the edge of the bone plate 2 is abutted against the edge of the bone window of the skull 1, and the bone plate 2 is fixedly connected with the skull 1 through a fixing device;

the beneficial effects of the above technical scheme are: the fixation between the bone plate 2 and the skull 1 is realized only by using the groove 3 processed on the bone plate 2, and the groove 3 does not need to be processed on the skull 1 of the patient, so that the bone material of the skull 1 of the patient is reduced, and the damage to the skull 1 of the patient is reduced.

In one embodiment, the fixing device comprises connecting pieces, two connecting pieces, namely a first connecting piece 4 and a second connecting piece 5, are respectively arranged on two sides of the bone plate 2, a buckle structure for fixedly tensioning the two connecting pieces is connected between the first connecting piece 4 and the second connecting piece 5, and the buckle structure is accommodated in the groove 3;

the working principle of the technical scheme is as follows: the clamping structure fixes and tightens the first connecting sheet 4 and the second connecting sheet 5, and the bone plate 2 and the skull 1 are clamped by the two connecting sheets simultaneously, so that the fixation between the bone plate 2 and the skull 1 is realized;

the beneficial effects of the above technical scheme are: the clamping effect through the connection piece is used for fixing the bone plate 2 and the skull 1, the bone plate 2 and the skull 1 of a patient do not need to be drilled, the difficulty of repairing the skull 1 is reduced, the bone material of the skull 1 of the patient is reduced, and the damage to the skull 1 of the patient is reduced.

In one embodiment, the snap structure comprises a first collar 6 fixedly connected to the first connecting piece 4 and a second collar 7 fixedly connected to the second connecting piece 5, wherein the outer wall of the first collar 6 is in plug fit with the inner wall of the second collar 7; the outer wall of the first sleeve ring 6 is provided with clamping blocks around the axis of the first sleeve ring 6, the cross section of each clamping block is a right triangle with a bevel edge facing the second sleeve ring 7, the clamping blocks are arrayed in a plurality of directions along the axis of the first sleeve ring 6, the outer wall of the second sleeve ring 7 is provided with clamping grooves around the axis of the second sleeve ring 7, the cross section of each clamping groove is a right triangle with a bevel edge facing the first sleeve ring 6, the clamping blocks are arrayed in a plurality in directions along the axis of the first sleeve ring 6, and the clamping blocks are clamped and matched with the clamping grooves; the locking mechanism is used for drawing and fixing the first connecting piece 4 and the second connecting piece 5;

the working principle of the technical scheme is as follows: the locking mechanism draws the first connecting sheet 4 and the second connecting sheet 5 close to each other, the first sleeve ring 6 and the second sleeve ring 7 are close to each other and are inserted, a plurality of clamping blocks on the outer wall of the first sleeve ring 6 are clamped with clamping grooves on the inner wall of the second sleeve ring 7, when the clamping blocks are clamped with the clamping grooves, the bevel edge of the right-angled triangle of the section of each clamping block and the bevel edge of the right-angled triangle of the section of each clamping groove play a role in guiding, the two connecting sheets are close to each other, and the right-angled edge of the right-angled triangle of the section of each clamping block and the right-angled edge of the right-angled triangle of the section of each clamping groove are abutted against each other, so that the clamping blocks and the clamping grooves are firmly combined;

the beneficial effects of the above technical scheme are: through the mutual joint of a plurality of fixture blocks and draw-in groove, joint face and atress between fixture block and the draw-in groove are perpendicular, make firm in connection between first connection piece 4 and the second connection piece 5, prevent that 1 skull from restoreing the operation after, become loose between first connection piece 4 and the second connection piece 5, cause to connect the separation between hone lamella 2 and patient skull 1, arouse that the patient is uncomfortable.

In one embodiment, the locking mechanism comprises a boss 9 arranged on the second connecting sheet 5, the boss 9 is provided with a threaded hole, the threaded hole is in threaded connection with a screw 8, and the end surface of the head of the screw 8 is in abutting fit with the surface of the first connecting sheet 4; an expansion mechanism for preventing the displacement between the bone plate 2 and the skull 1;

the working principle of the technical scheme is as follows: screwing the screw 8 into a threaded hole in the boss 9, continuously selecting the screw 8, enabling the screw 8 and the boss 9 to approach each other, and pulling the first adjusting piece and the second connecting piece 5 to approach each other until the clamping block is clamped with the clamping groove; then the screw 8 is rotated reversely to take out the screw 8;

the beneficial effects of the above technical scheme are: the screw 8 has simple connection structure, convenient use and quick replacement, and the screw 8 can be taken out after the screw 8 is used, thereby not increasing the weight of the bone plate 2 and reducing the head burden of a patient.

In one embodiment, the expansion mechanism comprises an expansion sleeve 12, wherein a first taper hole and a second taper hole are formed in the inner wall of the expansion sleeve 12, the first taper hole and the second taper hole are coaxial and have opposite tapers, a first frustum 10 is fixedly connected to the first connecting piece 4, a second frustum 11 is fixedly connected to the second connecting piece 5, the outer wall of the first frustum 10 is in butt fit with the inner wall of the first taper hole, and the outer wall of the second frustum 11 is in butt fit with the inner wall of the second taper hole;

the working principle of the technical scheme is as follows: in the approaching process of the first connecting plate and the second connecting plate, the first frustum and the second frustum approach to each other, meanwhile, tension is applied to the first taper hole and the second taper hole, the expansion sleeve 12 deforms and expands along the radial direction of the expansion sleeve 12, the outer wall of the expansion sleeve 12 abuts against the edge of the bone plate 2 and the edge of the skull 1, friction force is generated on the bone plate 2 and the skull 1 at the same time, and the bone plate 2 and the skull 1 are difficult to generate relative displacement;

the beneficial effects of the above technical scheme are: the possibility of relative displacement between the bone plate 2 and the skull 1 is reduced, and the abrasion of the contact edge of the bone plate 2 and the skull 1 on the scalp of a patient is reduced.

In one embodiment, the expansion sleeve 12 is provided with a notch for breaking the expansion sleeve 12 along the axial direction of the expansion sleeve 12;

the working principle of the technical scheme is as follows: the expansion sleeve 12 is disconnected, the deformation size of the expansion sleeve 12 is increased, and the friction force between the expansion sleeve 12 and the bone plate 2 and the edge of the skull 1 is increased, so that the bone plate 2 and the skull 1 are difficult to generate relative displacement;

the beneficial effects of the above technical scheme are: further reducing the possibility of relative displacement of the bone plate 2 and the skull 1 and reducing the wear of the edges of the bone plate 2 in contact with the skull 1 on the scalp of the patient.

In one embodiment, the expansion sleeve 12 is made of a soft material;

the working principle of the technical scheme is as follows: the soft material has the advantages of large friction force and good elasticity, and cannot deform the bone plate 2 and the skull 1; in this embodiment, the soft material may be silicone, an expanded material, or polyacrylamide.

The beneficial effects of the above technical scheme are: the service life of the bone plate 2 is prolonged, and the damage to the skull 1 of the patient is reduced.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A transverse skull keyway, comprising: bone plate (2), bone plate (2) edge be used for with the mutual butt cooperation of bone window edge of skull (1), bone plate (2) edge is equipped with a plurality of recesses (3) that run through bone plate (2), recess (3) opening orientation is kept away from bone plate (2), the groove width direction of recess (3) is followed recess (3) edge sets up, still includes to pass recess (3) are used for fixed bone plate (2) and skull's fixing device.

2. A transverse skull keyway according to claim 1, characterized in that the fixing means comprise two connecting plates, namely a first connecting plate (4) and a second connecting plate (5), on each side of the bone plate (2), and a snap-fit structure for fixedly tightening the two connecting plates is connected between the first connecting plate (4) and the second connecting plate (5), and the snap-fit structure is accommodated in the groove (3).

3. The transverse skull keyway according to claim 2, characterized in that the snap-fit structure comprises a first collar (6) fixedly connected to the first connecting piece (4) and a second collar (7) fixedly connected to the second connecting piece (5), wherein the outer wall of the first collar (6) and the inner wall of the second collar (7) are in plug-fit engagement; a clamping block is arranged on the outer wall of the first sleeve ring (6) around the axis of the first sleeve ring (6), the section of the clamping block is a right triangle with a bevel edge facing the axis of the second sleeve ring (7), the clamping blocks are arrayed in a plurality of numbers along the axis of the first sleeve ring (6), a clamping groove is arranged on the outer wall of the second sleeve ring (7) around the axis of the second sleeve ring (7), the section of the clamping groove is a right triangle with a bevel edge facing the axis of the first sleeve ring (6), the clamping blocks are arrayed in a plurality along the axis of the first sleeve ring (6), and the clamping block is clamped and matched with the clamping groove; and the locking mechanism is used for drawing and fixing the first connecting sheet (4) and the second connecting sheet (5).

4. A lateral skull keyway according to claim 3, characterized in that the locking mechanism comprises a boss (9) provided on the second connecting piece (5), the boss (9) being provided with a threaded hole, a screw (8) being threadedly connected to the threaded hole, the head end face of the screw (8) and the surface of the first connecting piece (4) being in abutting engagement; and an expansion mechanism for preventing the displacement between the bone plate (2) and the skull (1).

5. The transverse skull keyway according to claim 4, characterized in that the expansion mechanism comprises an expansion sleeve (12), the inner wall of the expansion sleeve (12) is provided with a first taper hole and a second taper hole, the first taper hole and the second taper hole are coaxial and have opposite tapers, the first connecting piece (4) is fixedly connected with a first frustum (10), the second connecting piece (5) is fixedly connected with a second frustum (11), the outer wall of the first frustum (10) is in butt fit with the inner wall of the first taper hole, and the outer wall of the second frustum (11) is in butt fit with the inner wall of the second taper hole.

6. A transverse skull keyway according to claim 5, characterized in that the expansion sleeve is provided with notches breaking the expansion sleeve (12) in the direction of the expansion sleeve (12) axis.

7. A transverse skull spline according to claim 6, characterized in that the expansion sleeve (12) is made of a soft material.

8. A transverse skull keyway according to claim 2, characterized in that two adjacent recesses (3) are grouped, and one and the same first (4) and second (5) connecting tabs are simultaneously connected to one group of recesses (3) by a snap-fit arrangement.