Pressure self-adaptive telescopic artificial skull

Abstract

The invention relates to the technical field of medical supplies, in particular to a pressure self-adaptive telescopic artificial skull which comprises a telescopic skeleton, a connecting piece is arranged between the periphery of the skeleton and the skull, and the skeleton can be of an integrated structure and is in a telescopic spiral shape. The spiral sections of the spiral skull in the non-stretching state are tightly attached to form a whole bone body shape; the framework can also be of a split type structure and comprises a top cover body in the center and a plurality of annular bodies arranged on the lower side of the top cover body and sequentially arranged from top to bottom, in every two adjacent annular bodies, the size of the upper annular body is smaller than that of the lower annular body, and pressure adjusting pieces are arranged between the top cover body and the adjacent annular bodies and between the adjacent annular bodies. The device has the self-pressure-adjusting function along with expansion of brain tissue, secondary skull repair operation can be avoided, the purpose of effectively protecting the brain tissue is achieved, operation complications and operation cost are reduced, health recovery of a patient is facilitated, and economic burden is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical supplies, and in particular to a pressure-adaptive and retractable artificial skull. Background Art

[0002] With the gradual intensification of aging, the incidence of brain trauma, cerebral hemorrhage and other diseases has been increasing year by year. A large number of patients with brain trauma and cerebral hemorrhage need to undergo craniotomy to reduce pressure on brain tissue, thereby reducing intracranial pressure, relieving brain herniation, improving cerebral blood flow, and promoting neurological recovery. However, the lack of skull after providing a decompression window will cause the head to lose the original hard skull protective barrier, making brain tissue vulnerable to damage, and causing unstable intracranial pressure, which will lead to a series of neurological dysfunctions and affect the patient's appearance and psychological state at any time, thereby affecting the patient's social and quality of life.

[0003] The existing artificial skulls are mainly of integral fixed structure, which cannot effectively reduce pressure after being fixedly connected to the human skull. Some artificial skulls have several pressure relief holes, but the pressure relief effect is poor.

[0004] In addition, a second surgery to repair the skull will bring financial and psychological burden to the patient, and another surgical blow will bring additional surgical risks.

[0005] Therefore, there is a need for a self-pressure regulating artificial skull that can provide a decompression effect. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. The present invention provides a pressure-adaptive and retractable artificial skull, which has the ability to self-regulate pressure as the brain tissue expands, thereby achieving the surgical purpose of decompression, while retaining the supporting and protective function of the skull, avoiding secondary surgery to repair the skull.

[0007] A pressure-adaptive and retractable artificial skull comprises a retractable skeleton, wherein a connecting piece is arranged between the periphery of the skeleton and the skull.

[0008] Furthermore, the skeleton is an integrated structure in a retractable spiral shape, and the spiral segments of the spiral skull in an unstretched state fit tightly into the shape of a whole bone.

[0009] Furthermore, the skeleton is a split structure, including a top cover body in the center and a plurality of annular bodies arranged in sequence from top to bottom on the lower side of the top cover body. Among adjacent annular bodies, the size of the upper annular body is smaller than that of the lower annular body. Pressure regulating parts are provided between the top cover body and the adjacent annular bodies and between adjacent annular bodies.

[0010] Furthermore, the butt joint surface between the top cover body and the topmost annular body, and the butt joint surfaces between the annular bodies are all arranged to be butt jointed in an inclined manner.

[0011] Furthermore, the pressure regulating member is made of elastic silicone material.

[0012] Furthermore, the pressure regulating member is realized by a telescopic member, including a limit groove and a limit block, a gap is provided between the limit block and the limit groove, and the limit block can move in the limit groove;

[0013] A limiting block is arranged on one side of the top cover body close to the annular body, a limiting groove is arranged on the top side of the bottommost annular body, and limiting grooves are arranged on the upper sides of the remaining annular bodies and limiting blocks are arranged on the lower sides.

[0014] Furthermore, the skeleton is made of titanium alloy material or PEEK material.

[0015] Furthermore, the connecting member comprises a connecting piece, one end of which is arranged on a fixing nail connected to the edge of the telescopic frame through a fixing nail and connected to the human skull through the fixing nail.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a self-regulating pressure function as the brain tissue bulges, and can avoid secondary cranial repair surgery, thereby achieving the purpose of effectively protecting the brain tissue, thereby reducing surgical complications and surgical costs, thereby facilitating the patient's health recovery and reducing the economic burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the integrated spiral structure artificial skull of the present invention;

[0018] Figure 2 This is a top view schematic diagram of the first split-structure artificial skull of the present invention;

[0019] Figure 3 yes Figure 2 The first schematic diagram of the cross section at AA in the middle;

[0020] Figure 4 yes Figure 2 The second schematic diagram of the cross section at AA in the middle;

[0021] Figure 5 yes Figure 2 The third schematic diagram of the cross section at AA in the middle;

[0022] Figure 6 This is a top view schematic diagram of a second split-structure artificial skull of the present invention;

[0023] Figure 7 yes Figure 6 Schematic diagram of the cross section at the middle BB and the setting of the pressure regulating parts;

[0024] Figure 8This is a schematic diagram of a third split-structure artificial skull and a pressure regulating member of the present invention;

[0025] Fig. 9 It is a schematic diagram of the connecting piece between the artificial skull and the human skull of the present invention.

[0026] As shown in the figure: 1. frame; 2. connecting piece; 3. pressure regulating piece; 101. top cover body; 102. annular body; 201. connecting piece; 202. fixing nail; 301. limiting groove; 302. limiting block. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected" or "installed" on another feature, it may be directly set, fixed, connected to another feature, or indirectly set, fixed, connected, or installed on another feature.

[0030] In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than" or "exceed" is involved, it should be understood as not including the number itself, if "above", "below" or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] The following describes the pressure-adaptive and retractable artificial skull according to an embodiment of the present invention with reference to the accompanying drawings.

[0032] A pressure-adaptive and retractable artificial skull comprises a retractable skeleton 1, wherein a connector 2 is arranged between the periphery of the skeleton 1 and the skull; the connector 2 comprises a connecting piece 201, wherein one end of the connecting piece 201 is arranged on the edge of the retractable skeleton through a fixing nail 202 and connected to the human skull through the fixing nail 202. Fig. 9 shown.

[0033] Example 1: One-piece spiral structure artificial skull

[0034] like Figure 1 As shown, a pressure-adaptive and retractable artificial skull comprises a retractable skeleton 1, a connector 2 is arranged between the periphery of the skeleton 1 and the skull; the connector 2 is arranged between a circle of the spiral skeleton close to the human skull and the human skull.

[0035] The skeleton 1 is an integrated structure in a retractable spiral shape, and the spiral segments of the spiral skull in an unstretched state fit tightly into the shape of a whole bone.

[0036] The skeleton is made of titanium alloy material or PEEK material.

[0037] Embodiment 2: Split-structure artificial skull

[0038] like Figure 2 , 3 , 4 and 5, a pressure-adaptive and retractable artificial skull comprises a retractable skeleton 1, wherein a connecting piece 2 is provided between the periphery of the skeleton 1 and the skull;

[0039] The skeleton is a split structure, including a top cover body 101 at the center and a plurality of annular bodies 102 arranged from top to bottom on the lower side of the top cover body 101. Among the adjacent annular bodies 102, the size of the upper annular body 101 is smaller than the size of the lower annular body 101. A pressure regulating member 3 is provided between the top cover body 101 and the adjacent annular body 102 and between the adjacent annular bodies 102.

[0040] The connecting member 2 is disposed between the bottommost annular body 102 and the human skull, and the connecting member 2 therein can be manufactured with the skeleton 1 by 3D printing;

[0041] The pressure regulating member 3 is made of elastic silicone material;

[0042] The skeleton is made of titanium alloy material or PEEK material.

[0043] Figure 3 The butt joint surfaces of the middle top cover 101 and the topmost annular body 102, and the butt joint surfaces between the annular bodies 102 are vertically butt jointed. Figure 3The vertical setting will result in the risk of direct compression of brain tissue when the artificial bone is subjected to downward force;

[0044] Figure 4 The butt joint surfaces of the middle top cover 101 and the topmost annular body 102, and the butt joint surfaces between the annular bodies 102 are all horizontally butt jointed. Figure 4 The horizontal setting in the experiment will cause the artificial bone to move horizontally when it is subjected to lateral force, which may cause the artificial bone to cut brain tissue.

[0045] exist Figure 5 In the embodiment, the butt joint surface between the top cover body 101 and the topmost annular body 102, and the butt joint surfaces between the annular bodies 102 are all inclinedly butt jointed. The inclined arrangement avoids damage to the brain tissue when the artificial skull is subjected to lateral force or downward force, thus playing a good protective role;

[0046] therefore, Figure 5 The tilted docking setting in Figure 3 Vertical docking in Figure 4 Horizontal docking in is better.

[0047] Embodiment 3: Split-structure artificial skull II

[0048] like Figure 6 , 7 As shown in , and 8, a pressure-adaptive and retractable artificial skull comprises a retractable skeleton 1, wherein a connecting piece 2 is provided between the periphery of the skeleton 1 and the skull;

[0049] The skeleton is a split structure, including a top cover body 101 in the center and a plurality of annular bodies 102 arranged in sequence from top to bottom on the lower side of the top cover body 101. Among adjacent annular bodies 102, the size of the upper annular body 101 is smaller than the size of the lower annular body 101. Pressure regulating parts 3 are provided between the top cover body 101 and the adjacent annular bodies 102 and between adjacent annular bodies 102.

[0050] The pressure regulating member 3 is realized by a telescopic member, and includes a limiting groove 301 and a limiting block 302. A gap is provided between the limiting block 302 and the limiting groove 301, and the limiting block 301 can move in the limiting groove;

[0051] A stopper 302 is disposed on one side of the top cover 101 close to the annular body 102, a stopper groove 301 is disposed on the top side of the bottommost annular body 102, and a stopper groove 301 is disposed on the upper side of the remaining annular bodies 102 and a stopper block 302 is disposed on the lower side;

[0052] The connecting member 2 is disposed between the bottommost annular body 102 and the human skull, and the connecting member 2 therein can be manufactured with the skeleton 1 by 3D printing;

[0053] The skeleton is made of titanium alloy material or PEEK material.

[0054] Whether it is the one-piece spiral structure artificial skull in Example 1, or the split artificial skull shown in Examples 2 and 3, all can be made into prefabricated artificial skulls. When used specifically, the craniotomy is performed to remove the bone flap without damaging the dura mater. A suitable prefabricated artificial skull is selected according to the size of the patient's bone flap, and the bone flap is scanned by laser. The selected prefabricated artificial skull is processed for connection with the human skull so that the artificial skull can fit into the opening of the artificial skull. The trimmed human skull is fixed with connecting plates and fixing pins, and the skin is sutured.

[0055] After the artificial skull is installed, when the brain pressure increases, the self-adjusting artificial skull will be slightly pushed by the brain tissue and will automatically expand outward as the brain pressure increases, thereby preventing the brain tissue and its blood vessels from being compressed. This can further effectively protect the function of the brain tissue and avoid the occurrence of cerebral ischemia.

[0056] When brain edema subsides, intracranial pressure decreases, and the self-regulating artificial skull can return to its original shape similar to that of a normal skull due to its own structural characteristics and the restrictive effect of the scalp. With the protection of the skull, it can prevent brain tissue from being injured.

[0057] The present invention can effectively provide patients with the same effect of craniectomy as decompression surgery while avoiding secondary cranioplasty surgery, reducing surgical complications and surgical costs, and can effectively protect brain tissue, thereby facilitating the patient's health recovery and reducing the economic burden.

[0058] The shape, size, thickness, etc. of the present invention can be adjusted according to the size of the bone flap of the craniotomy patient, but the structure and principle remain unchanged.

[0059] The scheme of the present invention has many structural forms during specific production and processing. In order to enable technical personnel in the field to more clearly understand the structural construction and technical principles of the scheme, it should be noted that the scheme is not limited to the above-mentioned embodiments, and technical personnel in the field may also have other implementation methods, which are not limited here.

[0060] In summary, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creatively designing without departing from the purpose of the invention, they should all fall within the scope of protection of the invention.

Claims

1. A pressure-adaptive and retractable artificial skull, characterized in that: The invention comprises a retractable skeleton, wherein a connecting piece is arranged between the periphery of the skeleton and the skull.

2. The self-pressure-adjustable artificial skull according to claim 1, characterized in that: The skeleton is an integrated structure and is in a retractable spiral shape. The spiral segments of the spiral skull in an unstretched state fit tightly into the shape of a whole bone.

3. The self-pressure-adjustable artificial skull according to claim 1, characterized in that: The skeleton is a split structure, including a top cover body in the center and a plurality of annular bodies arranged in sequence from top to bottom on the lower side of the top cover body. Among adjacent annular bodies, the size of the upper annular body is smaller than that of the lower annular body. Pressure regulating parts are provided between the top cover body and the adjacent annular bodies and between adjacent annular bodies.

4. The self-pressure-adjustable artificial skull according to claim 1, characterized in that: The butt joint surface between the top cover body and the annular body at the top, and the butt joint surfaces between the annular bodies are all arranged to be butt jointed with each other at an angle.

5. The self-pressure-adjustable artificial skull according to claim 3, characterized in that: The pressure regulating member is made of elastic silicone material.

6. The self-pressure-adjustable artificial skull according to claim 3, characterized in that: The pressure regulating member is realized by a telescopic member, and includes a limit groove and a limit block, a gap is provided between the limit block and the limit groove, and the limit block can move in the limit groove; A limiting block is arranged on one side of the top cover body close to the annular body, a limiting groove is arranged on the top side of the bottommost annular body, and limiting grooves are arranged on the upper sides of the remaining annular bodies and limiting blocks are arranged on the lower sides.

7. The self-pressure-adjustable artificial skull according to claims 1-6, characterized in that: The skeleton is made of titanium alloy material or PEEK material.

8. The self-pressure-adjustable artificial skull according to claim 1, characterized in that: The connecting piece comprises a connecting piece, one end of which is arranged on the edge of the telescopic frame through a fixing nail and connected to the human skull through the fixing nail.

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