TWI720668B - Skull implant - Google Patents

Abstract

This creation is a kind of skull implant, which is set on a skull and located at the broken mouth of the skull. The skull implant includes a strong body, a growth body and many cushioning parts, and the strong body is located above the broken mouth. It is made of elastic material. The growth body is set around the tough body and abuts the edge of the broken opening. The growth body is made of porous material. The cross-sectional thickness of the tough body is smaller than the cross-sectional thickness of the growth body. Most of the buffers are provided in the growth body. Surrounding and in contact with the skull, the skull implant of this creation uses most locks to lock the buffer on the skull. The growth body can allow the skull to grow and heal, improve stability and tightness, and avoid expanding the scope of the damaged mouth. The tough body bears the pressure or torsion of impact or squeeze and deforms slightly to eliminate the pressure or torsion and restore its shape to prevent the skull implant from cracking.

Description

Skull implant

This creation is a skull implant, especially a skull implant that can heal with autogenous bone and provide resistance to torsion and compression.

The skull is located on the outer side of the brain. It is an important protection to protect the brain from impacts or impacts. It is indispensable for the life safety of the human body. However, the skull is damaged or cracked by impact or compression by foreign objects. In clinically rare cases, the skull cannot be covered to protect the important brain after being damaged. Therefore, the implant of the skull is an important substitute for the damage of the skull.

Existing skull implants cover the damaged opening of the skull with a breathable skull plate. The breathable skull plate is a component made of plates of equal thickness, and the breathable skull plate has a plurality of holes. The method of entry can be divided into supporting implantation method, locking implantation method and extension locking method. The supporting implantation method uses a support frame to lock the ventilated cranial plate on the support frame, and The support frame is pressed against the edge of the fractured opening of the skull in a pressing manner. This method is quick and convenient. The disadvantage is that when the skull is squeezed or twisted, the support frame is subjected to pressure or Torsion is easy to be squeezed out of the damaged opening of the skull, so the stability of the supporting implantation method is not good. The locking implantation method covers the ventilated skull plate on the damaged opening. The air-permeable skull plate is locked on the skull to increase the stability of the air-permeable skull plate on the skull, but the bone around the fractured opening of the skull becomes fragile due to damage, and the skull is slightly squeezed Or twisting may enlarge the broken opening, endanger the fixation of the majority of the fasteners, and make the skull damage more serious. The extension locking method is to extend the plurality of fixation sheets around the ventilated skull plate. If a plurality of locking members pass through the plurality of fixing plates and are locked on the skull, the locking position of the plurality of locking members can be far away from the periphery of the broken opening, which can effectively solve the problem of the bones locked by the locking implantation method. The problem of fragility, but the locking point of the extension locking method is far away from the broken opening, which will cause a gap between the ventilating skull plate and the skull.

The above-mentioned implantation method of the ventilated cranial plate is that the ventilated cranial plate covers the broken mouth of the skull, and the ventilated cranial plate and the skull are combined in a sticking manner, then the ventilated skull plate and the The skull is still two separate components. The breathable skull cannot heal with the skull. When the head of the human body is subjected to impact pressure or squeezing torsion again, it is easy to connect the skull to the breathable skull. In order to solve the above-mentioned problems, a skull implant with a porous layer is produced. The porous layer abuts against the edge of the damaged orifice of the skull. The stromal layer has a plurality of close holes, and the plurality of close holes can provide space for the skull to grow bones. The bones of the skull grow into the porous layer, and the skull implant can heal with the skull , When the head of the human body is subjected to pressure or torsion again, the bones of the skull that grow into the porous layer are strong and elastic, and can resist pressure or torsion and avoid contact between the porous layer and the skull The location is broken.

However, the bones of the skull only extend to the periphery of the porous layer, which means that the skull does not grow in the center of the porous layer, and the thickness of the porous layer of the skull implant is uniform. When the head of the human body is subjected to pressure or torsion again, the center of the porous layer will receive the stress resisted by the healing of the surrounding porous layer with the skull, causing the center of the porous layer to rupture, causing the skull to be implanted The problem of poor resistance to compression and torsion.

The main purpose of this creation is to provide a skull implant, so as to improve the ability of the existing breathable skull plate to be unable to heal with the skull, which is prone to rupture again at the damaged mouth, and the thickness of the porous layer of the skull implant is uniform, resulting in compression and resistance. The problem of poor torsion resistance.

In order to achieve the above-mentioned purpose, the skull implant of this creation is set in a skull and located at the broken opening on the skull. The skull implant includes: A tough body, the tough system is located above the broken opening of the skull, and the tough system is a member made of elastic material; A growth body, the growth body is arranged around the tough body and assembled on the skull, the outer edge of the growth body abuts the mouth of the broken mouth, the growth system is a member made of porous material , The cross-sectional thickness of the tough body is less than the cross-sectional thickness of the growth body, and the cross-sectional thickness of the growth body adjacent to the tough body is less than the cross-sectional thickness of the growth body adjacent to the broken opening, and the cross-sectional thickness of the growth body is determined by Tapering in size from outside to inside; and A plurality of buffer members are arranged at intervals around the growth body, and the plurality of buffer members are in contact with the outer surface of the skull.

The skull implant of the present creation is installed on the broken mouth of the skull, and a plurality of locking members are used to lock the plurality of buffer members, and then the plurality of buffer members provide the growth body and the strong body to be firmly positioned on the skull , And the growth body abuts against the mouth edge of the broken mouth, the porous material of the growth body can allow the skull to grow and heal, which can improve the stability and adhesion. The thickness is less than the cross-sectional thickness of the growth body, the strong body can withstand the pressure or torsion of impact or squeeze and deform slightly temporarily to eliminate the pressure or torsion and restore the shape of the strong body to keep the skull implanted The integrity of the object, the tough body can prevent the skull implant from splitting, and the healing of the growth body with the skull can prevent the expansion of the damaged opening.

As shown in Figure 1, Figure 2 and Figure 4, a preferred embodiment of the creative skull implant is disclosed. It can be seen from the drawings that the creative skull implant is set on a skull 40 and is located on the skull. The fractured port 41 on the bone 40, the skull implant includes a tough body 10, a growth body 20, and a plurality of buffer members 30.

As shown in Figure 1, Figure 3 and Figure 4, the tough body 10 is located above the broken opening 41 of the skull 40, and the tough body 10 is a member made of elastic material, wherein the The tough body 10 has a plurality of vent holes 11 arranged at intervals, and the cross-sectional shape of the tough body 10 forms an arch bridge shape. In this embodiment, the tough body 10 may be a member made of titanium or a titanium alloy .

As shown in Figures 3 to 5, the growth body 20 is arranged around the tough body 10 and assembled on the skull 40. The outer edge of the growth body 20 abuts against the mouth edge of the broken opening 41, and the growth The body 20 is a member made of porous material. The cross-sectional thickness of the tough body 10 is smaller than the cross-sectional thickness of the growth body 20, and the cross-sectional thickness of the growth body 20 adjacent to the tough body 10 is smaller than that of the growth body 20 The cross-sectional thickness of the growth body 20 adjacent to the damaged opening 41 is gradually reduced in size from the outside to the inside. In this embodiment, the cross-sectional thickness of the growth body 20 adjacent to the damaged opening 41 is within 4 mm. , The cross-sectional thickness of the growth body 20 adjacent to the tough body 10 and the cross-sectional thickness of the tough body 10 are both within 2 mm, which means that the cross-sectional thickness of the growth body 20 is unequal, and the cross-sectional thickness of the growth body 20 The thickness of the cross section of the tough body 10 is also different.

As shown in FIGS. 5 to 7, the plurality of buffer members 30 are arranged at intervals around the growth body 20, and the plurality of buffer members 30 are in contact with the outer surface of the skull 40, wherein each buffer member 30 includes a The connecting piece 31 and a fixing piece 32, one end of the connecting piece 31 is arranged around the growth body 20, the fixing piece 32 is formed at the other end of the connecting piece 31, and the fixing piece 32 and the skull 40 Contact, the fixing piece 32 has a perforation 33. In addition, as shown in FIGS. 8 and 9, each buffer member 30 includes a curved section 34, which is located in the middle of the buffer member 30, so that There is a height difference between the two ends of the buffer member 30.

As shown in Figures 3 to 5, a preferred embodiment of the skull implant of the present invention is disclosed. The human skull 40 has a broken opening 41 due to impact or extrusion. The doctor can use the skull implant The object is installed on the skull 40 and the growth body 20 is brought into contact with the edge of the broken opening 41. The doctor will grind out the groove 42 around the broken opening 41 of the skull 40, which can accommodate the plurality of buffer members 30, The plurality of buffer members 30 are placed in the plurality of grooves 42, and the plurality of locking members 50 are passed through the plurality of buffer members 30 and locked on the skull 40, and the plurality of locking members 50 pass through the plurality of perforations 33 and If the plurality of fixing pieces 32 are locked on the skull 40, the plurality of buffer members 30 can provide the initial support of the growth body 20. After the skull 40 grows through bone and blood, it will extend into the porous material of the growth body 20. , Which accelerates the healing of the growth body 20 and the skull 40 into an integrated structure, and improves the adhesion and stability between the growth body 20 and the skull 40. When the skull 40 is hit or squeezed again, When the skull 40 is subjected to pressure or torsion force on the growth body 20, the stability and adhesion are increased due to the healing of the skull 40 and the growth body 20, which can prevent cracking from the broken opening 41 again, and the majority of The groove 42 accommodates the plurality of buffer members 30, and the joint between the skull implant and the skull 40 of the human body after the operation can be in a smooth state, so as to avoid obvious protrusion of the joint after the operation.

In the above, when the skull 40 is hit or squeezed again, the growth body 20 is subjected to the stress of pressure or torsion to transfer the stress to the tough body 10, because the cross-sectional thickness of the tough body 10 is smaller than that of the growth body. 20, the tough body 10 deforms slightly in response to the pressure or torsion it bears, and then the tough body 10 recovers by eliminating the pressure or torsion generated by impact or squeezing by its own elasticity, the tough body 10 It becomes a structure that resists pressure or torsion, effectively eliminates pressure or torsion, and maintains the integrity of the skull implant.

In addition, as shown in FIGS. 4, 7 and 9, the cushioning member 30 of the skull implant of the present invention provides initial support for the growth body 20, and can extend into the growth body 20 before the skull 40 has grown. The growth body 20 is stabilized at the fracture opening 41 of the skull 40. When the growth body 20 is initially installed on the skull 40, the majority of the buffer members 30 are strained to be impacted or squeezed to generate pressure or The condition of the torsion force allows the growth body 20 to adjust as the pressure or torsion force deforms the skull 40. The tough body 10 provides a member made of titanium or titanium alloy with sufficient hardness to resist impact or extrusion. , Fully protect the brain in the skull 40, the skull implant has a consistent and natural appearance after being implanted in the skull 40, wherein the curved section 34 allows the buffer member 30 to be impacted or squeezed Under pressure conditions, a space for deformation of the buffer member 30 is provided, so that the buffer member 30 can disperse the pressure or torsion generated by impact or extrusion.

In summary, the cranial implant of the present creation firmly fixes the growth body 20 and the tough body 10 on the skull 40 through the plurality of cushioning members 30, and the growth body 20 has multiple pores. Material, the growth body 20 is in contact with the skull 40, allowing the skull 40 to grow and heal, which can improve stability and adhesion. The cross-sectional thickness of the tough body 10 is smaller than the cross-sectional thickness of the growth body 20 , The tough body 10 can withstand the pressure or torsion of impact or squeeze, maintain the integrity of the skull implant, and prevent the skull implant from cracking or breaking.

10: Toughness 11: Vent holes 20: Growth body 30: Buffer 31: Connection piece 32: Fixing piece 33: Piercing 34: curved section 40: Skull 41: Broken mouth 42: Groove 50: lock firmware

Figure 1: A schematic top view of a preferred embodiment of the skull implant of the present invention. Figure 2: A schematic side view of a preferred embodiment of the skull implant of the present invention. Figure 3: A schematic side sectional view of a preferred embodiment of the skull implant of the present invention. Fig. 4: A three-dimensional exploded schematic diagram of the installation state of a preferred embodiment of the skull implant of the present invention. Figure 5: A schematic side sectional view of the installation state of a preferred embodiment of the skull implant of the present invention. Figure 6: A partially enlarged three-dimensional schematic diagram of the cushioning member of a preferred embodiment of the inventive skull implant. Fig. 7: A partial enlarged schematic side view of the installation state of the cushioning member of a preferred embodiment of the skull implant of the present invention. Fig. 8: A partial enlarged perspective view of another cushioning member of a preferred embodiment of the skull implant of the present invention. Fig. 9: A partial enlarged schematic side view of the installation state of another cushioning member of a preferred embodiment of the skull implant of the present invention.

10: Toughness

11: Vent holes

20: Growth body

30: Buffer

32: Fixing piece

33: Piercing

Claims (7)

A skull implant, which is set on a skull and is located at a broken mouth on the skull, the skull implant includes: A tough body, the tough system is located above the broken opening of the skull, and the tough system is a member made of elastic material; A growth body, the growth body is arranged around the tough body and assembled on the skull, the outer edge of the growth body abuts the mouth of the broken mouth, the growth system is a member made of porous material , The cross-sectional thickness of the tough body is less than the cross-sectional thickness of the growth body, and the cross-sectional thickness of the growth body adjacent to the tough body is less than the cross-sectional thickness of the growth body adjacent to the broken opening, and the cross-sectional thickness of the growth body is determined by Tapering in size from outside to inside; and A plurality of buffer members are arranged at intervals around the growth body, and the plurality of buffer members are in contact with the outer surface of the skull. The skull implant according to claim 1, wherein each cushioning member includes an engaging piece and a fixing piece, one end of the connecting piece is arranged around the growth body, and the fixing piece is formed on the connecting piece The other end of the sheet and the fixing sheet is in contact with the skull, and the fixing sheet is provided with a perforation. The skull implant according to claim 1, wherein the tough body has a plurality of vents arranged at intervals, and the tough system may be a member made of titanium or a titanium alloy. The skull implant according to claim 2, wherein the tough body has a plurality of vents arranged at intervals, and the tough system may be a member made of titanium or a titanium alloy. The skull implant according to any one of claims 1 to 4, wherein the cross-sectional thickness of the growth body adjacent to the broken opening is within 4 mm, and the cross-sectional thickness of the tough body is 2 mm Within. The skull implant according to any one of claims 1 to 4, wherein each cushioning member includes a curved section, and the curved section is located in the middle of the cushioning member so that the two ends of the cushioning member There is a height difference between them. The skull implant according to claim 5, wherein each buffer member includes a curved section, and the curved section is located in the middle of the buffer member, so that a height difference is generated between the two ends of the buffer member.

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