Skull repair patch for intracranial decompression and production device of skull repair patch

Abstract

The invention relates to the technical field of medical instruments, and provides a skull repair patch for intracranial decompression and a production device thereof.The skull repair patch comprises a bone resection patch body and two fixing supporting arms which are combined in a V shape, the fixing supporting arms and the bone resection patch body are provided with a plurality of through holes, the bone resection patch body is round, the fixing supporting arms are arranged to be in an arc-shaped bent shape, and the fixing supporting arms are arranged to be in an arc-shaped bent shape. The skull repair patch production device for the intracranial decompression operation is used for production and manufacturing, the skull repair patch production device comprises a first mold and a second mold, when the embedded mold is separated from the first mold, the second mold is separated from the first mold, the second mold is separated from the first mold, and the second mold is separated from the second mold. The outer sleeve mold can extend into the first mold in a sliding mode, when the outer sleeve mold is separated from the second mold, the second mold can extend into the embedded mold in a sliding mode, and by means of the technical scheme, the problems that in the prior art, installation of a traditional skull repairing piece is tedious, and consumed time is long are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a skull patch for intracranial decompression and a production device thereof. Background Art

[0002] Intracranial decompression surgery is a surgical method used to reduce intracranial pressure. It is often used to treat symptoms of intracranial hypertension caused by severe craniocerebral injury, brain tumors, cerebral edema, etc. It can also be used for the treatment of cranial nerve microvascular decompression such as trigeminal neuralgia, hemifacial spasm and glossopharyngeal neuralgia. Intracranial decompression requires incision on the patient's skull. The size and location of the incision are adjusted according to the patient's condition. Usually, the brain is treated after bone cutting of the patient's skull. After the treatment is completed, the skull patch needs to be fixed on the patient's skull to protect the wound at the bone cutting position, and then the head is sutured. The skull patch is mostly made of polyetheretherketone (PEEK). Polyetheretherketone has better tissue compatibility, strong pressure resistance, perfect shaping, can be shaped in three dimensions, highly restore the physiological structure of the skull, and is highly integrated with the autologous skull. It has the same performance as the autologous skull in terms of elasticity, heat conduction, hardness, stability, etc., and can better adapt to the growth and development of the autologous skull, and does not affect medical examinations such as CT and MRI. Polyetheretherketone can be shaped by using a molding machine. Polyetheretherketone is added to the mold on the molding machine for extrusion, cooling and shaping.

[0003] Depending on the type of surgery, some surgeries use smaller skull patches, some surgeries require the skull patches to be fixed while the patient is awake, and some surgical locations are not convenient for skull patches to be fixed (such as the occipital bone window behind the ear). Traditional skull patches are mostly square, or can be cut according to needs. During installation, a baffle needs to be fixed near the patient's bone cut position with bolts, and then the skull patch is clamped and fixed to the patient's bone cut with the baffle. First, this method has a cumbersome installation process and requires a long time. When the patient needs to be awake for surgery, the long installation time will make it inconvenient to install. Second, the baffle needs to be fixed with bolts. The baffle fixes the skull patch to the bone cut, which is cumbersome to install and uses more parts, making the operation more difficult and time-consuming. Therefore, in order to increase the operation time for intracranial decompression and simplify the surgical process when repairing the bone cut, we propose a skull patch for intracranial decompression and a production device thereof. Summary of the invention

[0004] The present invention provides a skull patch for intracranial decompression and a production device thereof, which solves the problems of difficult shaping of a traditional skull patch in the existing post-auricular occipital bone window repair technology and complicated and time-consuming installation.

[0005] The technical solution of the present invention is as follows:

[0006] A skull patch for intracranial decompression surgery includes a bone-cutting patch, on which two fixed arms are fixedly arranged, the two fixed arms are combined in a V-shape, a plurality of through holes are arranged on the fixed arms and the bone-cutting patch, the bone-cutting patch is arranged in a circular shape, the fixed arms are arranged in an arc-shaped curved shape, a dividing groove is provided between adjacent through holes on the fixed arms, the bone-cutting patch is provided with a protrusion on one side of the curved fixed arm, and the bone-cutting patch is sunken relative to the fixed arm.

[0007] A skull patch production device for intracranial decompression surgery is used to produce the above-mentioned skull patch for intracranial decompression surgery, including mold one and mold two, wherein mold one is arranged on a molding machine, and the bone cutting patch is detachably connected to mold one, and mold two is arranged on a molding machine, and mold two is detachably connected to mold one, and mold two is detachably connected to the bone cutting patch.

[0008] The mold 1 is detachably provided with an embedded mold, the embedded mold is arranged inside the mold 1, and the embedded mold corresponds to the bone cutting repair piece.

[0009] The second mold is detachably provided with an outer shell mold, which is detachably mounted on the second mold and corresponds to the bone cutting repair piece.

[0010] The mold 1 corresponds to the outer shell mold, and the outer shell mold is detachably connected to the mold 1. When the embedded mold is separated from the mold 1, the outer shell mold can be slidably extended into the mold 1.

[0011] The second mold corresponds to the embedded mold, and the embedded mold is detachably connected to the second mold. When the outer mold is separated from the second mold, the second mold can be slidably extended into the embedded mold.

[0012] The mold 1 is provided with a plurality of extrusion protrusions 1, and the extrusion protrusions 1 are arranged in an arc shape. A groove corresponding to the extrusion protrusion 1 is provided on the side of the embedded mold close to the mold 1, and a plurality of extrusion protrusions 2 are provided on the side of the embedded mold away from the mold 1, and the extrusion protrusions 2 correspond to the dividing grooves.

[0013] A plurality of through rods are fixedly arranged on the mold 1, and the through rods penetrate the embedded mold, the bone cutting patch, the fixed support arm, the outer sleeve mold and the mold 2.

[0014] The working principle and beneficial effects of the present invention are:

[0015] 1. In the present invention, by setting a fixed support arm and a bone cutting patch, one side of the protrusion on the bone cutting patch is set at the notch of the bone cutting, and the fixed support arm is pressed on the skull. When the fixed support arm is too long, the fixed support arm can be broken through the breaking groove, and the length of the fixed support arm can be easily adjusted. The fixed support arm is fixed to the skull through the through hole on the fixed support arm with a bolt. The protrusion of the bone cutting patch can better correspond to the notch of the bone cutting. The sunken design of the bone cutting patch can better fit the anatomical characteristics of the occipital bone window behind the ear, and better protect the brain. At the same time, it can be easily fixed by the fixed support arm. Compared with the traditional method of clamping with a baffle, the process is greatly simplified;

[0016] 2. In the present invention, by setting an embedded mold and an outer mold, when manufacturing a large-sized bone-cutting repair piece, the embedded mold is separated from the mold one, and the outer mold is set on the mold two. When manufacturing a small-sized bone-cutting repair piece, the outer mold is separated from the mold two, and the embedded mold is set in the mold one. By adjusting the combination of the embedded mold and the outer mold, the bone-cutting repair piece can be conveniently produced in various sizes to cope with different conditions of different patients;

[0017] 3. In the present invention, by providing a bone cutting repair piece, the bone cutting part of the patient can be repaired conveniently. By providing a production device, the bone cutting repair piece can be manufactured accordingly, and bone cutting repair pieces of various sizes can be manufactured conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of the structure of the bone cutting repair piece in the present invention;

[0020] Figure 2 A schematic diagram of the structure of the bone cutting repair piece of the present invention from another perspective;

[0021] Figure 3 It is a schematic diagram of the exploded structure of mold 1 and mold 2 in the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the mold 1 and the embedded mold in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the cooperation between the mold 2 and the embedded mold in the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the cooperation between the mold 1 and the outer sleeve mold in the present invention.

[0025] In the figure: 1. bone cutting patch; 2. fixed support arm; 3. through hole; 4. dividing groove; 5. mold 1; 6. mold 2; 7. embedded mold; 8. outer mold; 9. extrusion protrusion 1; 10. extrusion protrusion 2; 11. through rod. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1, as Figure 1 to Figure 2 As shown, this embodiment proposes a skull patch for intracranial decompression, including a bone cutting patch 1, two fixed arms 2 are fixedly arranged on the bone cutting patch 1, the two fixed arms 2 are combined in a V shape, a plurality of through holes 3 are arranged on the fixed arms 2 and the bone cutting patch 1, the bone cutting patch 1 is arranged in a circular shape, the fixed arms 2 are arranged in an arc shape, and a dividing groove 4 is opened between adjacent through holes 3 on the fixed arms 2, the bone cutting patch 1 is provided with a protrusion on one side of the fixed arm 2, the bone cutting patch 1 is sunken relative to the fixed arm 2, and when in use, the protrusion on one side of the bone cutting patch 1 is arranged Place it at the notch of the bone cut, press the fixed arm 2 on the skull, when the fixed arm 2 is too long, break it through the breaking groove 4, and easily adjust the length of the fixed arm 2, use bolts to fix the fixed arm 2 on the skull through the through hole 3 on the fixed arm 2, the protrusion of the bone cut patch 1 can better correspond to the notch of the bone cut, the sunken design of the bone cut patch 1 can better fit the anatomical characteristics of the occipital bone window behind the ear, and better protect the brain, and at the same time, it can be easily fixed by the fixed arm 2, which greatly simplifies the process compared to the traditional method of clamping with a baffle.

[0028] Embodiment 2, as Figure 1 to Figure 2 As shown, a skull patch production device for intracranial decompression surgery is used to produce the above-mentioned skull patch for intracranial decompression surgery, including mold 1 5 and mold 2 6, mold 1 5 is arranged on a molding machine, the bone cutting patch 1 is detachably connected to mold 1 5, mold 2 6 is arranged on a molding machine, mold 2 6 is detachably connected to mold 1 5, mold 2 6 is detachably connected to the bone cutting patch 1, mold 1 5 and mold 2 6 are arranged on a molding machine, mold 1 5 is provided with a groove corresponding to the bone cutting patch 1, mold 2 6 is provided with a protrusion corresponding to the bone cutting patch 1, and the raw material in mold 1 5 can be molded by pressing mold 2 6 on mold 1 5.

[0029] like Figures 2 to 4As shown, the mold 15 is detachably provided with an embedded mold 7, which is arranged inside the mold 15. The embedded mold 7 corresponds to the bone cutting repair piece 1. When the embedded mold 7 is arranged in the mold 15, the embedded mold 7 makes the space inside the mold 5 smaller, thereby making the size of the bone cutting repair piece 1 obtained by extrusion smaller. The manufacture of the bone cutting repair piece 1 can be adjusted according to demand, and the bone cutting repair piece 1 can be set in different sizes to cope with patients with wounds of different sizes.

[0030] like Figures 5 and 6 As shown, a removable outer sleeve mold 8 is provided on mold 2 6 , and the outer sleeve mold 8 is removably mounted on mold 2 6 . The outer sleeve mold 8 corresponds to the bone cutting repair piece 1 . The outer sleeve mold 8 is mounted on mold 2 6 . After the outer sleeve mold 8 is mounted on mold 2 6 , it extends into mold 1 5 , and a larger bone cutting repair piece 1 can be obtained. The outer sleeve mold 8 corresponds to the other side of the bone cutting repair piece 1 .

[0031] like Figures 3 to 6 As shown, mold 1 5 corresponds to the outer cover mold 8, and the outer cover mold 8 is detachably connected to mold 1 5. When the embedded mold 7 is separated from mold 1 5, the outer cover mold 8 can be slid into mold 1 5. When manufacturing a large-sized bone cutting repair piece 1, the embedded mold 7 is separated from mold 1 5, and the outer cover mold 8 is set on mold 2 6.

[0032] like Figures 3 to 6 As shown, mold 2 6 corresponds to the embedded mold 7, and the embedded mold 7 and mold 2 6 are detachably connected. When the outer mold 8 is separated from mold 2 6, mold 2 6 can be slid into the embedded mold 7. When manufacturing a small-sized bone cutting repair piece 1, the outer mold 8 is separated from mold 2 6, and the embedded mold 7 is set in mold 1 5.

[0033] like Figures 3 to 6 As shown, a plurality of extrusion protrusions 9 are arranged on the mold 5, and the extrusion protrusions 9 are arranged in an arc shape. A groove corresponding to the extrusion protrusion 9 is opened on the side of the embedded mold 7 close to the mold 5, and a plurality of extrusion protrusions 2 10 are arranged on the side of the embedded mold 7 away from the mold 5, and the extrusion protrusions 2 10 correspond to the dividing groove 4. When the embedded mold 7 is arranged in the mold 5, the extrusion protrusions 19 cooperate with the embedded mold 7. During compression molding, the extrusion protrusions 2 10 contact the raw material to form the dividing groove 4. In this embodiment, both the embedded mold 7 and the outer mold 8 are provided with one. In the actual production process, a plurality of corresponding embedded molds 7 and outer molds 8 can be arranged to realize convenient adjustment of more sizes.

[0034] like Figures 3 to 6As shown, a plurality of through rods 11 are fixedly arranged on the mold 1 5, and the through rods 11 penetrate the embedded mold 7, the bone cutting patch 1, the fixed support arm 2, the outer mold 8 and the mold 2 6. The through rods 11 can be used to position the embedded mold 7, the bone cutting patch 1, the fixed support arm 2, the outer mold 8 and the mold 2 6 on the one hand, and the excess raw material can be squeezed out through the position of the mold 2 6 through the through rods 11, and on the other hand, the position of the through hole 3 on the fixed support arm 2 can be relatively fixed.

[0035] In this embodiment, when the osteotomy patch 1 is used to repair the osteotomy of the patient, the raised side of the osteotomy patch 1 is aligned with the osteotomy, and the two fixed arms 2 are pressed against the skull near the osteotomy, and the fixed arms 2 are fixed to the skull through the through holes 3 on the fixed arms 2 using bolts. When the patient's head position is not convenient for fixation, the fixed arms 2 can be disconnected at the disconnection grooves 4 on the fixed arms 2, and the disconnection length is determined according to the length used. The length of the fixed arms 2 is easy to adjust, and the arc shape of the fixed arms 2 has a pressing effect on the osteotomy repair piece, so that it is pressed against the osteotomy In the gap, when using the production device to manufacture the bone cutting repair piece, mold 1 5 and mold 2 6 are set on the molding machine. When a small-sized bone cutting repair piece 1 is needed, the embedded mold 7 is set in mold 1 5, the molten raw material is added to mold 1 5, and mold 2 6 is extended into the embedded mold 7 to extrude the raw material. When a larger-sized bone cutting repair piece 1 is needed, the embedded mold 7 is taken out of mold 1 5, and the outer mold 8 is set on mold 2 6, the raw material is added to mold 1 5, and the outer mold 8 is extended into mold 1 5 to obtain a larger-sized bone cutting repair piece 1 through extrusion molding.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A skull patch for intracranial decompression, characterized in that: The invention comprises a bone-cutting repair piece (1), on which two fixed arms (2) are fixedly arranged, the two fixed arms (2) are combined in a V-shape, a plurality of through holes (3) are arranged on the fixed arms (2) and the bone-cutting repair piece (1), and the bone-cutting repair piece (1) is provided with a circular shape.

2. A skull patch for intracranial decompression according to claim 1, characterized in that: The fixed support arm (2) is arranged in an arc-shaped curved shape, and a separating groove (4) is provided between adjacent through holes (3) on the fixed support arm (2).

3. A skull patch for intracranial decompression according to claim 2, characterized in that: The bone cutting patch (1) is provided with a protrusion on the curved side of the fixing support arm (2).

4. A skull patch production device for intracranial decompression surgery, used for producing the skull patch for intracranial decompression surgery according to claim 3, characterized in that: include: Mold one (5), the mold one (5) is arranged on a molding machine, and the bone cutting repair piece (1) is detachably connected to the mold one (5); Mold 2 (6), the mold 2 (6) is arranged on a molding machine, the mold 2 (6) is detachably connected to the mold 1 (5), and the mold 2 (6) is detachably connected to the bone cutting repair piece (1).

5. The device for producing a skull patch for intracranial decompression according to claim 4, characterized in that: The mold one (5) is detachably provided with an embedded mold (7), the embedded mold (7) is arranged inside the mold one (5), and the embedded mold (7) corresponds to the bone cutting repair piece (1).

6. The device for producing a skull patch for intracranial decompression surgery according to claim 5, characterized in that: The second mold (6) is detachably provided with an outer shell mold (8), and the outer shell mold (8) is detachably mounted on the second mold (6). The outer shell mold (8) corresponds to the bone cutting repair piece (1).

7. The device for producing a skull patch for intracranial decompression according to claim 6, characterized in that: The mold 1 (5) corresponds to the outer mold (8), and the outer mold (8) is detachably connected to the mold 1 (5). When the embedded mold (7) is separated from the mold 1 (5), the outer mold (8) can be slidably extended into the mold 1 (5).

8. The device for producing a skull patch for intracranial decompression surgery according to claim 7, characterized in that: The second mold (6) corresponds to the embedded mold (7), and the embedded mold (7) and the second mold (6) are detachably connected. When the outer mold (8) is separated from the second mold (6), the second mold (6) can be slidably extended into the embedded mold (7).

9. The device for producing a skull patch for intracranial decompression surgery according to claim 8, characterized in that: The mold one (5) is provided with a plurality of extrusion protrusions one (9), the extrusion protrusions one (9) being arranged in an arc shape, a groove corresponding to the extrusion protrusion one (9) is provided on a side of the embedded mold (7) close to the mold one (5), and a plurality of extrusion protrusions two (10) are provided on a side of the embedded mold (7) away from the mold one (5), the extrusion protrusions two (10) corresponding to the dividing grooves (4).

10. The device for producing a skull patch for intracranial decompression according to claim 9, characterized in that: A plurality of through rods (11) are fixedly arranged on the mold one (5), and the through rods (11) penetrate the embedded mold (7), the bone cutting repair plate (1), the fixed support arm (2), the outer sleeve mold (8) and the mold two (6).

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