Skull fixed connection structure and fixing screw thereof

Abstract

The utility model discloses a skull fixing and connecting structure and a fixing screw thereof. The skull fixing and connecting structure comprises a connecting piece and a screw for fixing the connecting piece with a repairing piece and a skull. The screw comprises a main body and a cap body matched with the main body; a connecting section is designed at the top of the main body, a plurality of inverted trapezoidal longitudinal shafts are symmetrically arranged on the connecting section, and an injection molding hole is formed in the middle of the connecting section; the cap body is arranged at the top of the main body in an injection molding mode, the connecting structure and the using mode are very simple, meanwhile, disassembly is convenient, the operation requirement is met, use in the operation is convenient, in addition, the PEEK repairing piece, the PEEK connecting piece and the screw with the specific structure are selected for conducting the skull repairing and reconstructing operation, the skull and the repairing piece can be firmly fixed, and the repairing effect is good. Heat accumulation caused by solar radiation or heating is greatly weakened, a patient does not feel that the position of the screw is hot and hot after an operation, and the comfort of the patient can be greatly improved.

Description

Technical Field

[0001] The present application relates to a skull fixation connection structure and a fixation screw thereof, belonging to the field of skull repair devices. Background Art

[0002] Cranioplasty is a common neurosurgery procedure that solves problems such as abnormal cerebral blood supply, insufficient or obstructed cerebrospinal fluid circulation, and brain compression caused by skull defects.

[0003] Titanium screws are the same as ordinary stainless steel, iron, and copper screws, except that they are made of metal titanium. Generally, titanium is made of pure titanium. 2 and titanium alloy TC 4 Material: Titanium, as the raw material element for making screws, has better flexibility and oxidation resistance than traditional stainless steel, iron and copper.

[0004] In current skull repair surgeries, the skull and the repair piece cannot be stably connected. At the same time, the connecting parts have a complex structure, which is not conducive to the smooth progress of the operation. In addition, most skull repair surgeries use metal titanium screws. The installation position of the metal titanium screws will become hot after being exposed to the sun or heat, which can easily cause discomfort to the patient. Utility Model Content

[0005] According to one aspect of the present application, a skull fixation connection structure and a fixing screw thereof are provided, including a connecting piece and a screw for fixing the connecting piece to a patch and a skull respectively;

[0006] The screw comprises a main body and a cap body adapted to the main body;

[0007] The top of the main body is designed with a connecting section, the connecting section includes a plurality of symmetrically arranged inverted trapezoidal longitudinal axes, and an injection hole is opened in the middle of the connecting section;

[0008] The cap body is injection molded on the top of the main body.

[0009] Optionally, the cap body is made of PEEK material by injection molding.

[0010] Optionally, the patch sheet and the connecting sheet are both made of PEEK material.

[0011] Optionally, four inverted trapezoidal longitudinal axes are provided.

[0012] Optionally, the connecting piece is configured as a symmetrical structure.

[0013] Optionally, the connecting section and the main body are designed to be integrally formed.

[0014] Optionally, the screw is a self-tapping screw.

[0015] Optionally, the cap body is integrally formed with the main body after being injection-molded on the top of the main body.

[0016] When using:

[0017] First, use a tap to drill threaded holes on the skull and the patch (when the screw is designed as a self-tapping screw, there is no need to drill holes first), then place the patch and connecting piece at the corresponding positions on the skull, and use screws to tighten and fix them, thereby achieving skull repair and reconstruction.

[0018] Since only the cap body is exposed outside after fixation, and the cap body can be made of injection molding of material with poor thermal conductivity, it can greatly reduce the heat accumulation caused by solar radiation or heat. The patient will not feel the heat at the screw position after the operation, making the patient more comfortable.

[0019] The beneficial effects of this application include:

[0020] The present application provides a skull fixation connection structure and a fixing screw thereof. The connection structure and the method of use are very simple and easy to disassemble, meeting surgical requirements and being convenient for use during surgery. In addition, the use of a PEEK patch, a PEEK connecting piece and screws with a specific structure for skull repair and reconstruction surgery can securely fix the skull and the patch, and greatly reduce heat accumulation caused by solar radiation or heat. The patient will not feel heat at the screw position after the operation, which can greatly improve the patient's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a skull fixation connection structure and a fixation screw thereof in use provided in one embodiment of the present application;

[0022] Figure 2 A schematic diagram of a skull fixation connection structure and a fixation screw thereof provided in one embodiment;

[0023] Figure 3 A cross-sectional view of a skull fixation connection structure and a fixation screw thereof in use provided in one embodiment;

[0024] Figure 4 This is a schematic diagram of a fixing screw structure provided in one embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of the main structure of a fixing screw provided in one embodiment of the present application;

[0026] Figure 6 for Figure 5 A schematic diagram of the enlarged structure of the middle part A;

[0027] Figure 7A front view of a main body of a fixing screw provided in one embodiment of the present application;

[0028] Figure 8 A left side view of a main body of a fixing screw provided in one embodiment of the present application;

[0029] Fig. 9 A top view of the main body of a fixing screw provided in one embodiment of the present application.

[0030] List of parts and reference numerals:

[0031] 1. Connecting piece; 2. Repair piece; 3. Skull; 4. Screw; 5. Threaded hole; 6. Main body; 7. Cap body; 8. Connecting section; 9. Longitudinal axis; 10. Injection hole. DETAILED DESCRIPTION

[0032] The present application is described in detail below with reference to embodiments, but the present application is not limited to these embodiments.

[0033] like Figures 1 to 3 As shown, according to one embodiment of the present application, a skull 3 fixing connection structure and its fixing screw 4 include a connecting piece 1 and screws 4 for fixing the connecting piece 1 to a patch 2 and a skull 3 respectively;

[0034] like Figure 4 As shown, the screw 4 includes a main body 6 and a cap body 7 adapted to the main body 6;

[0035] like Figures 5 to 9 As shown, a connecting section 8 is designed on the top of the main body 6, and the connecting section 8 includes four symmetrically arranged inverted trapezoidal longitudinal axes 9, and an injection hole is opened in the middle of the connecting section 8;

[0036] The cap body 7 is injection molded on the top of the main body 6 .

[0037] The cap body 7 is made of PEEK material by injection molding.

[0038] The patch sheet 2 and the connecting sheet 1 are both made of PEEK material.

[0039] The connecting piece 1 is configured as a symmetrical structure.

[0040] The connecting section 8 and the main body 6 are designed to be integrally formed.

[0041] The screw 4 is a self-tapping screw 4.

[0042] The cap body 7 is integrally formed with the main body 6 after being injection-molded on the top of the main body 6 .

[0043] When using:

[0044] First, use a tap to drill threaded holes 5 on the skull 3 and the patch 2 (when the screw 4 is designed as a self-tapping screw 4, there is no need to drill holes in advance), then place the patch 2 and the connecting plate 1 at the corresponding positions on the skull 3, and use the screw 4 to tighten and fix them, thereby achieving the repair and reconstruction of the skull 3.

[0045] After fixation, only the cap body 7 is exposed to the outside, and the cap body 7 can be made of injection molding of a material with poor thermal conductivity, which can greatly reduce the heat accumulation caused by solar radiation or heat. The patient will not feel the heat at the screw 4 position after the operation, making the patient more comfortable.

[0046] The above description is only a partial embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the above disclosed technical content to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A skull fixation connection structure and a fixing screw thereof, characterized in that: It includes a connecting piece and screws for fixing the connecting piece to the patch and the skull respectively; The screw comprises a main body and a cap body adapted to the main body; The top of the main body is designed with a connecting section, the connecting section includes a plurality of symmetrically arranged inverted trapezoidal longitudinal axes, and an injection hole is opened in the middle of the connecting section; The cap body is injection molded on the top of the main body.

2. A skull fixation connection structure and a fixing screw thereof according to claim 1, characterized in that: The cap body is made of PEEK material by injection molding.

3. A skull fixation connection structure and a fixing screw thereof according to claim 2, characterized in that: There are four inverted trapezoidal longitudinal axes.

4. A skull fixation connection structure and a fixing screw thereof according to claim 3, characterized in that: The connecting piece is arranged in a symmetrical structure.

5. A skull fixation connection structure and a fixing screw thereof according to claim 4, characterized in that: The connecting section and the main body are designed to be integrally formed.

6. A skull fixation connection structure and a fixing screw thereof according to claim 5, characterized in that: The screw is a self-tapping screw.

7. A skull fixation connection structure and a fixing screw thereof according to claim 6, characterized in that: The cap body is integrally formed with the main body after being injection-molded on the top of the main body.

8. A skull fixation connection structure and a fixing screw thereof according to claim 7, characterized in that: The patch sheet and the connecting sheet are both made of PEEK material.

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