CN216570348U

CN216570348U - Skull bone window filling prosthesis and device

Info

Publication number: CN216570348U
Application number: CN202122920386.6U
Authority: CN
Inventors: 陈涛; 姚松林; 陈新蕾
Original assignee: Hangzhou Nuowei Medical Technology Co ltd
Current assignee: Hangzhou Nuowei Medical Technology Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-05-24
Anticipated expiration: 2031-11-25

Abstract

The skull bone window filling prosthesis comprises a body, wherein the body is a sealing structure, the upper surface of the body is a cambered surface, and the radian of the cambered surface is matched with the surface curved surface of a skull. According to the utility model, the upper surface of the body is matched with the surface curved surface around the bone window, so that the head can be attached to the whole curved surface of the skull while being implanted into the cranium and protecting the brain of a patient, the local bulge of the head can be avoided, and the beauty and safety of the head of the patient can be maintained; the body of this application is seal structure, prevents to implant intracranial interstitial fluid and gets into intracranial prosthesis's cavity.

Description

Skull bone window filling prosthesis and device

Technical Field

The utility model relates to a medical appliance, and belongs to a skull bone window filling prosthesis and a device.

Background

Implantable active medical devices are widely used to treat a variety of conditions, one of which is a nerve electrical stimulator that delivers a pulse signal to nerve tissue via electrodes to improve the normal skill of the human body. For example, DBS (deep brain stimulation) is a common type of implanted deep brain nerve stimulation electrode, and is effective in improving limb control and coordination ability of patients with nervous system diseases. This deep brain nerve electrical stimulation is a preferred treatment regimen in addition to drugs because of its microtrauma, safety and efficacy. Therefore, the research on the implantable brain stimulator is receiving more and more attention.

The existing stimulator mounting mode is that a part suitable for implantation is found on the skull, the scalp is cut after the part is determined, a skull bone forming bone window which is consistent with the size of the stimulator is cut off in a mode of cutting through the skull, the dura mater part of the brain is directly exposed, and the stimulator is fixed on the skull through a stimulator tray. Specifically, the tray is embedded and fixed at a bone window of the skull, the bottom of the tray is in direct contact with the dura mater, and then the stimulator is placed in the tray. The effect of tray is fixed the stimulator on the one hand, and on the other hand can avoid the stimulator to damage the dura mater when receiving external impact, reduces the unexpected risk that gets into the inside brain tissue that destroys of skull of stimulator.

When the intracranial implantable neurostimulator is implanted into a human body for a long service life, or when the patient no longer needs the continuous treatment of the implanted neurostimulator or other necessary conditions, the implanted neurostimulator can be taken out of the patient in the cranium. When the nerve stimulator is taken out of the skull, the skull is partially lost at the implantation position, the protection effect on the brain of a patient is lost at the skull lost position, and the dura mater is possibly injured again.

In the prior art, in order to solve the problem that the skull is partially lost at the implantation position, a new stimulator is usually implanted to fill the skull lost position, and the scheme is high in cost and can cause resource waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a skull bone window filling prosthesis and a device, which aim to solve the technical problems.

In order to achieve the purpose, the utility model provides the following technical scheme: a skull bone window filling prosthesis, which comprises a body,

the body is a sealing structure, the upper surface of the body is a cambered surface, and the radian of the cambered surface is matched with the surface curved surface of the skull.

Further, the body includes installation department and installation department down, go up the installation department with be sealing connection between the installation department down.

Further, the edge of the upper surface of the upper mounting part is the same as the shape of the bone window.

Furthermore, the upper mounting part and/or the lower mounting part are made of metal materials which can be implanted into a human body for a long time.

Furthermore, at least one of the upper mounting part and the lower mounting part is provided with a weight reduction cavity.

Further, the upper mounting part and/or the lower mounting part are made of non-metal materials. In particular, the non-metallic material is made of a high-hardness material or a polymer synthetic material.

Further, the upper mounting part and the lower mounting part are integrally formed.

A skull bone window filling structure comprises a tray, wherein the tray is embedded into a bone window and fixedly mounted with the skull, a body is placed in the tray, and the body comprises any one of the bodies.

Furthermore, the edge of the upper end of the tray is provided with a plurality of outwards-turned connecting plates, the connecting plates are fixed with the skull through fixing pieces, the tray is provided with a mounting groove, and the body is fixedly mounted in the mounting groove.

The utility model has the beneficial effects that:

1. when the body is made of metal materials, the metal materials are made of metal materials which can be implanted into a human body for a long time, and the body has the advantages of high strength, low density, low elastic modulus, excellent fatigue resistance, excellent corrosion resistance and the like; meanwhile, the structure of the body has higher impact resistance, and can help patients to resist various collisions and impacts encountered in daily life; the body of the application is provided with the weight reduction cavity, the upper surface of the body is matched with the surface curved surface around the bone window, and the body is attached to the overall curved surface of the skull when being implanted into the cranium and protecting the brain of a patient, so that the local bulge of the head can not be caused, and the beauty and the safety of the head of the patient can be kept; the body of this application is seal structure, prevents to implant intracranial interstitial fluid and gets into intracranial prosthesis's cavity.

2. The body of this application can integrated into one piece, reduces processing technology, has saved the cost.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic front view of the present application;

FIG. 2 is a schematic top view of the body of the present application;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is a schematic view of the filling apparatus of the present application;

fig. 5 is a schematic structural view of the tray.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In a first aspect, referring to fig. 1, a skull bone window filling prosthesis comprises a body 1,

the body 1 is a sealing structure, the upper surface of the body 1 is a cambered surface, and the radian of the cambered surface is matched with the surface curved surface of the skull.

Further, the body includes last installation department 11 and lower installation department 12, go up installation department 11 with be sealing connection between the lower installation department 12.

Further, as shown in fig. 2, the edge of the upper surface of the upper mounting part 11 has the same shape as the shape of the window frame.

In the first embodiment, the upper mounting portion 11 and the lower mounting portion 12 are made of a metal material that can be implanted into a human body for a long time.

As shown in fig. 3, the upper mounting portion 11 and the lower mounting portion 12 of the present application are provided with a weight-reducing cavity 13 on the body according to different materials, sizes of bone windows and comprehensive factors, and more specifically, at least one of the upper mounting portion 11 and the lower mounting portion 12 may be provided with the weight-reducing cavity 13.

The weight-reducing cavity 13 may be disposed between the upper mounting portion 11 and the lower mounting portion 12, that is, at least one of a lower end surface of the upper mounting portion 11, an upper end surface of the lower mounting portion 12, and a lower end surface of the lower mounting portion 12.

Wherein, go up installation department 11 with when lower installation department 12 carries out sealing connection, can realize sealing connection through modes such as welding, joint, threaded connection. In the embodiment of the present application, the upper mounting portion 11 and the lower mounting portion 12 are hermetically connected by welding.

In the second embodiment, the upper mounting part 11 and the lower mounting part 12 are made of non-metal materials. In particular, the non-metallic material is made of a high-hardness material or a polymer synthetic material. In particular, the upper mounting portion 11 and the lower mounting portion 12 are integrally formed.

In specific implementation, the upper mounting part 11 and the lower mounting part 12 can be manufactured by 3D printing.

In the third embodiment, the upper mounting portion 11 is made of a metal material that can be implanted into a human body for a long time, and the lower mounting portion 12 is made of a non-metal material.

In the fourth embodiment, the upper mounting portion 11 is made of a non-metal material, and the lower mounting portion 12 is made of a metal material that can be implanted into a human body for a long time.

In a second aspect, as shown in fig. 4, a skull bone window filling device 2 comprises a tray 21, wherein the tray 21 is embedded in the bone window and fixedly installed with the skull, the body 1 is placed in the tray 21, and the body 1 comprises any one of the bodies 1.

Further, as shown in fig. 5, a plurality of outward-turned connecting plates 22 are arranged at the upper end edge of the tray 21, the connecting plates 22 are fixed with the skull through fixing pieces, the tray 21 is provided with a mounting groove 23, and the body 1 is fixedly mounted in the mounting groove 23.

Further, the fixing piece is a skull nail.

Further, the body 1 and the tray 21 are provided with corresponding mounting holes, and the body 1 and the tray 21 are fixedly mounted in the mounting holes through fixing devices.

In the practice of the present application, the tray 21 is universal to both the neurostimulator and the body 1. When intracranial implantable neurostimulator reaches life implanting the human body, or the patient no longer need implanted neurostimulator's continuation treatment or other necessary conditions, implanted neurostimulator can follow the patient and take out intracranial, only need with body 1 passes through the fixed setting of fixing device in the mounting groove 22 of tray 21, can satisfy the demand of filling the bone window.

Still further, the lower mounting part 12 has no specific requirement on the shape, and only the sealing connection with the upper mounting part 11 needs to be satisfied.

The utility model has the beneficial effects that:

1. when the body is made of metal materials, the metal materials are made of metal materials which can be implanted into a human body for a long time, and the body has the advantages of high strength, low density, low elastic modulus, excellent fatigue resistance, excellent corrosion resistance and the like; meanwhile, the structure of the body has higher impact resistance, and can help patients to resist various collisions and impacts encountered in daily life; the body is provided with the weight-reducing cavity, the upper surface of the body is matched with the surface curved surface around the bone window, and the body is attached to the overall curved surface of the skull when being implanted into the cranium and protecting the brain of a patient, so that the local bulge of the head can be avoided, and the beauty and the safety of the head of the patient can be kept; the body of this application is seal structure, prevents to implant intracranial interstitial fluid and gets into intracranial prosthesis's cavity.

The technical features of the embodiments described above may be combined in any combination, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A skull bone window filling prosthesis, which is characterized by comprising a body,

2. The skull bone window filling prosthesis of claim 1, wherein the body comprises an upper mounting portion and a lower mounting portion, and the upper mounting portion and the lower mounting portion are in sealing connection.

3. A cranial window filling prosthesis according to claim 2, wherein the edge of the upper surface of the upper mounting portion is the same shape as the bone window.

4. The skull bone window filling prosthesis according to claim 2, wherein the upper mounting portion and/or the lower mounting portion is made of a metal material that can be implanted into a human body for a long period of time.

5. A skull bone window filling prosthesis according to claim 4, wherein at least one of the upper mounting portion and the lower mounting portion is provided with a lightening cavity.

6. The skull bone window filling prosthesis according to claim 2, wherein the upper mounting portion and/or the lower mounting portion is made of a non-metallic material.

7. A cranial bone window filling prosthesis according to claim 2, wherein the upper mounting portion and the lower mounting portion are integrally formed.

8. A skull opening filling device comprising a tray inserted into the opening and fixedly mounted to the skull, the tray having the body disposed therein, the body comprising a body according to any one of claims 1 to 7.

9. The skull bone window filling device according to claim 8, wherein the tray is provided with a plurality of connecting plates which are turned outwards at the upper end edge, the connecting plates are fixed with the skull through fixing pieces, the tray is provided with a mounting groove, and the body is fixedly mounted in the mounting groove.