Skull fixing instrument

Abstract

The skull fixing instrument comprises a main body part and a fixing part, the fixing part is movably arranged on the main body part, the fixing part can move relative to the main body part so as to adjust the relative position of the fixing part and the main body part, and the fixing part is constructed to be used for fixing a skull. After the skull is fixed through the fixing part, medical staff do not need to hold the skull manually, iatrogenic fracture caused by manual damage to the skull can be avoided, and follow-up machining of the skull through other machines is facilitated.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to a skull fixation instrument. Background Art

[0002] In the prior art, for patients whose skulls are partially missing due to trauma or tumor resection, skull defect repair is required. A common repair method is to use the excised skull of the patient or an artificial skull made of synthetic materials for in-situ implantation, and before implantation, the implanted skull bone is usually further processed by drilling and grinding.

[0003] At present, when processing skulls, medical staff hold the skull with one hand and use the machine with the other hand. This method has the following disadvantages: 1. When the skull is relatively thin, the strength of the skull held manually cannot be controlled accurately, which can easily break or crack the skull, causing skull damage and iatrogenic fractures; 2. When medical staff hold the skull with one hand and use the machine for drilling and grinding with the other hand, there is a certain risk, which not only makes it inconvenient to operate the machine, but also easily causes injuries to themselves. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a skull fixation device to free the hands of medical personnel and eliminate the need to manually hold the skull.

[0005] The technical solution of the present invention is as follows: A skull fixation instrument, characterized in that it includes: a main body and a fixing part, wherein the fixing part is movably arranged on the main body, and the fixing part is movable relative to the main body to adjust the relative position of the fixing part and the main body, and the fixing part is configured to fix the skull.

[0006] Furthermore, the main body is used to support the skull, and the fixing part is used to fix the edge of the skull.

[0007] Furthermore, at least one fixing portion is disposed on the main body, and each fixing portion can independently adjust its relative position to the main body. When there are multiple fixing portions, the multiple fixing portions are arranged at intervals in the circumferential direction.

[0008] Furthermore, the fixing portion is configured as a claw with a hook at the top, and the fixing portion is movable relative to the main body portion to clamp the skull.

[0009] Furthermore, the main body is a screw rod, a slider is threadedly connected to the screw rod, and the slider is connected to the fixing part.

[0010] Furthermore, a connecting plate is provided between the fixing portion and the sliding block, one end of the connecting plate is hinged to the fixing portion, and the other end of the connecting plate is hinged to the sliding block.

[0011] Furthermore, a first through hole is provided on the fixing portion, a connecting portion is provided on the sliding block, a second through hole is provided on the connecting portion, a third through hole is provided at one end of the connecting plate, and a fourth through hole is provided at the other end, there are two connecting plates, the fixing portion and the connecting portion are located between the two connecting plates, the third through holes of the two connecting plates correspond to the first through holes, and the fourth through holes correspond to the second through holes, the first bolt is penetrated through the first through hole and the two third through holes and is threadedly connected to the first nut, and the second bolt is penetrated through the second through hole and the two fourth through holes and is threadedly connected to the second nut.

[0012] Furthermore, a cushion is provided at the top end of the main body, and a handle is provided at the lower end of the main body.

[0013] Furthermore, the main body includes a handle and a forked rod arranged on the top of the handle, and the forked rod is inclined in the direction away from the handle from bottom to top; the forked rods are multiple and are arranged circumferentially around the handle at intervals, and the forked rods are provided with a fixing portion that can slide along the forked rods, and the fixing portion is provided with a limiting member, and the limiting member is used to fix the fixing portion on the forked rod.

[0014] Furthermore, the bifurcated rod is provided with a plurality of slots arranged along the length direction of the bifurcated rod, the fixing part includes a sleeve and a hook, the sleeve is sleeved on the bifurcated rod, the sleeve is provided with the hook, the limiting member includes a pressing piece and a card, the pressing piece is made of elastic material, one end of the pressing piece is fixedly connected to the sleeve, and the other end is a movable end that can be pressed, the card is fixedly connected to the pressing piece and is inserted into one of the slots.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This solution mainly provides a skull fixation device, including a main body and a fixing part. The fixing part is arranged on the main body. After the skull is fixed by the fixing part, medical personnel do not need to manually hold the skull, which not only avoids iatrogenic fractures caused by artificial damage to the skull, but also facilitates the subsequent processing of the skull using other machines.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0019] Figure 1 is a schematic structural diagram of embodiment 1 of the present invention;

[0020] Figure 2 is a schematic structural diagram of embodiment 1 of the present invention;

[0021] Figure 3 is a schematic diagram of the use of embodiment 1 of the present invention;

[0022] Figure 4 is a schematic structural diagram of Embodiment 2 of the present invention;

[0023] Figure 5 is a schematic structural diagram of Embodiment 2 of the present invention;

[0024] Reference numerals:

[0025] 1. Main body; 2. Fixing part; 3. Hook; 4. Slider; 5. Connecting plate; 6. First through hole; 7. Connecting part; 8. First bolt; 9. First nut; 10. Second bolt; 11. Second nut; 12. Cushion; 13. Handle; 14. Forked rod; 15. Sleeve; 16. Hook; 17. Slot; 18. Pressing sheet; 19. Card. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. are 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, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot 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.

[0030] like Figure 1-Figure 5 The skull fixation device shown comprises a main body 1 and a fixing part 2. The fixing part 2 is arranged on the main body 1 and is configured to fix the skull.

[0031] Specifically, the main body 1 in the present solution can be used as an installation base for installing the fixing part 2, and the fixing part 2 is used to fix the skull. Therefore, after the skull is fixed by the fixing part 2, medical personnel do not need to manually hold the skull, which not only avoids iatrogenic fractures caused by artificial damage to the skull, but also facilitates the subsequent processing of the skull using other machines.

[0032] In a further configuration, the main body 1 in this solution can be used not only for installing the fixing part 2, but also for supporting the skull, which, in combination with the fixing part 2, can effectively prevent the skull from falling.

[0033] The fixing part 2 can fix the position of the skull in many ways, for example, the skull can be fixed by fixing the middle position of the skull, or by fixing the edge of the skull. Those skilled in the art can choose a suitable fixing method according to their own needs, and there is no limitation on this. In this solution, the skull is preferably fixed by fixing the edge of the skull.

[0034] In a further configuration, the fixing portion 2 is movable relative to the main body 1, so that the relative positions of the fixing portion 2 and the main body 1 can be adjusted according to the shape and size of the skull to be fixed, so that the device can better fix the skull.

[0035] In a further configuration, at least one fixing part 2 is provided on the main body 1, and each fixing part 2 can independently adjust the relative position with respect to the main body 1. When there are multiple fixing parts 2, the multiple fixing parts 2 are arranged at intervals in the circumferential direction. Since each fixing part 2 is independently adjustable, the device has a relatively high position flexibility and is suitable for fixing skulls of different shapes and sizes.

[0036] There are many structural forms for the specific production and processing of this solution. In order to make the structural construction and technical principles of this solution more clearly understood by those skilled in the art, several specific implementation examples are given below. It should be noted that this solution is not limited to the following embodiments, and those skilled in the art may also have other implementation methods, which are not limited here.

[0037] Example 1

[0038] like Figure 1-Figure 3 As shown, the fixing part 2 is constructed as a claw with a hook 3 on the top. The fixing part 2 is movable relative to the main body 1 to clamp the skull. When in use, the skull can be fixed by moving the fixing part 2 so that the hook 3 on the fixing part 2 hooks the edge of the skull.

[0039] The main body 1 is a screw rod, on which a slider 4 is threadedly connected, and the slider 4 is connected to the fixed part 2. Thus, after the main body 1 is rotated, the slider 4 can be driven to move up and down, and then the fixed part 2 can be driven to move up and down.

[0040] The slider 4 is provided with a plurality of fixing parts 2 arranged at intervals along the circumferential direction, and a connecting plate 5 is provided between the fixing part 2 and the slider 4, one end of the connecting plate 5 is hinged to the fixing part 2, and the other end is hinged to the slider 4, thereby the fixing part 2 can be rotated. Therefore, the fixing part 2 can be moved and rotated, and has high position flexibility, and can have a good fixing effect on skulls of different shapes and sizes.

[0041] like Figure 1 and Figure 2As shown, the fixing part 2 is provided with a first through hole 6, the nut is provided with a connecting part 7, the connecting part 7 is provided with a second through hole, one end of the connecting plate 5 is provided with a third through hole, and the other end is provided with a fourth through hole, there are two connecting plates 5, the fixing part 2 and the connecting part 7 are located between the two connecting plates 5, the third through holes of the two connecting plates 5 correspond to the first through holes 6, and the fourth through holes correspond to the second through holes, the first bolt 8 is penetrated in the first through hole 6 and the two third through holes and is threadedly connected to the first nut 9, and the second bolt 10 is penetrated in the second through hole and the two fourth through holes and is threadedly connected to the second nut 11. In this way, the detachable connection of the connecting plate 5, the fixing part 2 and the slider 4 can be realized, which is convenient for disassembly and replacement at a later stage.

[0042] There can be a plurality of first through holes 6 on the fixing portion 2 , so that the hinge position between the connecting plate 5 and the fixing portion 2 can be adjusted.

[0043] A cushion 12 is provided at the top of the main body 1 , and the cushion 12 may be a rubber cushion, so as to prevent the main body 1 from damaging the skull when the main body 1 supports the skull. A handle 13 is provided at the lower end of the main body 1 for manual rotation of the main body 1 .

[0044] Example 2

[0045] like Figure 4-Figure 5 As shown, in Embodiment 2, the main body includes a handle 13 and a bifurcated rod 14 disposed at the top of the handle 13, and the bifurcated rod 14 is inclined in a direction away from the handle 13 from bottom to top. There are multiple bifurcated rods 14 and they are arranged circumferentially around the handle 13, so that from bottom to top, the multiple bifurcated rods 14 tend to be dispersed outward. There are three bifurcated rods 14 in this embodiment, and the bottoms of the three bifurcated rods 14 intersect at the top of the handle 13.

[0046] The bifurcated rod 14 is provided with a fixing portion that can slide along the bifurcated rod 14, and the fixing portion is provided with a stopper, which is used to fix the fixing portion on the bifurcated rod 14. The bifurcated rod 14 is provided with a plurality of slots 17 arranged along the length direction of the bifurcated rod 14, the fixing portion includes a sleeve 15 and a hook 16, the sleeve 15 is sleeved on the bifurcated rod 14, the sleeve 15 is provided with a hook 16, the stopper includes a pressing piece 18 and a card 19, the pressing piece 18 is made of elastic material, one end of the pressing piece 18 is fixedly connected to the sleeve 15, and the other end is a movable end that can be pressed, and the card 19 is fixedly connected to the pressing piece 18 and is inserted into one of the slots 17.

[0047] When in use, the card 19 is separated from the card slot 17 by pressing the elastic pressing piece 18, and the fixing part can be slid to adjust the position of the fixing part on the forked rod 14 so that the hook 16 can hook the skull. After the adjustment, the pressing piece 18 is released and reset, which can drive the card 19 to be inserted into another card slot 17, thereby limiting the fixing part.

[0048] To sum up, the present invention mainly provides a skull fixation device, including a main body 1 and a fixing part 2, wherein the fixing part 2 is arranged on the main body 1. When the skull is fixed by the fixing part 2, medical personnel do not need to manually hold the skull, which can not only avoid iatrogenic fractures caused by artificial damage to the skull, but also facilitate the subsequent processing of the skull using other machines.

[0049] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A skull fixation device, characterized in that: include: The fixing part is movably arranged on the main body and movable relative to the main body to adjust the relative position of the fixing part and the main body, and the fixing part is configured to fix the skull.

2. The skull fixation device according to claim 1, characterized in that: The main body is used to support the skull, and the fixing part is used to fix the edge of the skull.

3. The skull fixation device according to claim 1, characterized in that: At least one fixing portion is disposed on the main body, and each fixing portion can independently adjust its relative position to the main body. When there are multiple fixing portions, the multiple fixing portions are arranged at intervals in the circumferential direction.

4. The skull fixation device according to claim 1, characterized in that: The fixing part is configured as a claw with a hook at the top, and the fixing part is movable relative to the main body to clamp the skull.

5. The skull fixation device according to claim 4, characterized in that: The main body is a screw rod, a slider is threadedly connected to the screw rod, and the slider is connected to the fixing part.

6. The skull fixation device according to claim 5, characterized in that: A connecting plate is provided between the fixing portion and the sliding block, one end of the connecting plate is hinged to the fixing portion, and the other end of the connecting plate is hinged to the sliding block.

7. The skull fixation device according to claim 6, characterized in that: The fixing portion is provided with a first through hole, the sliding block is provided with a connecting portion, the connecting portion is provided with a second through hole, one end of the connecting plate is provided with a third through hole, and the other end is provided with a fourth through hole, there are two connecting plates, the fixing portion and the connecting portion are located between the two connecting plates, the third through holes of the two connecting plates correspond to the first through holes, and the fourth through holes correspond to the second through holes, the first bolt is penetrated through the first through hole and the two third through holes and is threadedly connected to the first nut, and the second bolt is penetrated through the second through hole and the two fourth through holes and is threadedly connected to the second nut.

8. The skull fixation device according to claim 5, characterized in that: A cushion is provided at the top end of the main body, and a handle is provided at the lower end of the main body.

9. The skull fixation device according to claim 1, characterized in that: The main body comprises a handle and a bifurcated rod disposed on the top of the handle, and the bifurcated rod is inclined in a direction away from the handle from bottom to top; The bifurcated rods are multiple and are arranged circumferentially around the handle at intervals. The bifurcated rods are provided with a fixing portion that can slide along the bifurcated rods. The fixing portion is provided with a limiting member, and the limiting member is used to fix the fixing portion on the bifurcated rod.

10. The skull fixation device according to claim 9, characterized in that: The bifurcated rod is provided with a plurality of slots arranged along the length direction of the bifurcated rod, the fixing portion comprises a sleeve and a hook, the sleeve is sleeved on the bifurcated rod, the sleeve is provided with the hook, the limiting member comprises a pressing piece and a card, the pressing piece is made of elastic material, one end of the pressing piece is fixedly connected to the sleeve, and the other end is a movable end that can be pressed, the card is fixedly connected to the pressing piece and is inserted into one of the slots.

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