Fixing device for supporting and resetting skull flap

Abstract

The invention provides a fixing device for supporting and resetting a skull flap. The fixing device comprises a pulling handle of a T-shaped structure; the top end of the positioning frame is connected with the bottom end of the pulling handle in an inserting and rotating driving manner; the skull fixing line penetrates through the center of the pulling handle and the center of the positioning frame, and the end, away from the positioning frame, of the skull fixing line and the middle of the skull fixing line are wound to form a knot; the pair of rubber positioning pieces is connected to the outer side of the skull fixing line in a sliding manner, and the rubber positioning pieces are located on the inner side of one section of the skull fixing line winding knot; according to the device, the force application distance between the pulling handle and the positioning frame can be reduced, force application pulling of the handle is facilitated, meanwhile, the tightness between the knot and the rubber positioning piece can be observed conveniently in the force application process, the knot pushing part is arranged in the positioning frame, the tightness between the knot and the skull flap of a patient can be accurately adjusted and controlled in a micro-distance mode, and the accuracy of force application is improved. And the use convenience and the operation precision of the device are improved.

Description

Technical Field

[0001] The invention relates to the field of skull fixation, and in particular to a skull bone flap fixing device for supporting and resetting the skull bone flap. Background Art

[0002] Skull flap reduction is an important step in neurosurgery, usually performed after cranial decompression or other intracranial surgery. The purpose of reduction is to restore the integrity of the skull, protect brain tissue, and reduce intracranial pressure. The steps of skull flap reduction involve cleaning the surgical field, evaluating the bone flap, resetting the bone flap, fixing the bone flap, checking and adjusting, closing the incision, and postoperative management.

[0003] During the process of resetting the skull flap, the bone flap is fixed to the skull through a support and a fixing frame to allow the bone flap and the skull to grow and fuse. The existing fixing frame uses sutures passed through two rubber positioning plates, and the skull and the bone flap are clamped by the rubber positioning plates to complete the fixation of the bone flap and the skull. During operation, it is necessary to pull the handle connecting the sutures so that the knot between the sutures and the rubber positioning plates gradually tightens the rubber positioning plates to achieve accurate fixation of the skull flap. However, there is generally a long distance between the handle and the knot. During use, the arms are spread apart a large distance, making it difficult to accurately control the distance adjustment between the knot and the rubber positioning plates.

[0004] Therefore, we have made improvements on this and proposed a device for supporting and resetting the skull bone flap. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing skull bone flap fixing device is difficult to accurately control the tightness adjustment between the knot and the patient's bone flap.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following device for supporting and resetting the skull bone flap to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] A skull bone flap fixing device for supporting and resetting, comprising a pulling handle of a T-shaped structure;

[0009] A cross-shaped positioning frame, the top end of which is plugged and rotatably driven to be connected with the bottom end of the pull handle;

[0010] A skull fixing wire is passed through the pulling handle and the center of the positioning frame, wherein one end of the skull fixing wire away from the positioning frame is wound around the middle of the skull fixing wire to form a knot;

[0011] A pair of rubber positioning pieces slidably connected to the outside of the skull fixing wire, wherein the rubber positioning pieces are located inside a section of the winding knot of the skull fixing wire;

[0012] Turn the take-up roller attached to the top center of the pull handle;

[0013] A force storage mechanism is rotatably connected to the right end of the top of the pulling handle, the force storage mechanism is elastically rotatably connected to the winding roller, and the winding roller is unidirectionally limitedly rotatably connected to the pulling handle;

[0014] A one-way locking part is rotatably connected to the left end of the top of the pulling handle, the winding roller is rotatably connected to the one-way locking part in a one-way limited manner, and the one-way locking part is elastically telescopically connected to the end surface of the pulling handle;

[0015] The knot propulsion part is limitedly slid down the center of the bottom of the positioning frame, the top of the knot propulsion part is plugged and driven with the bottom end of the pulling handle, and the pulling handle is rotated to drive the knot propulsion part to rotate inside the positioning frame and push the knot to move to the position of the rubber positioning piece;

[0016] A one-way wire stopper is hinged on the upper side of the center of the knot propulsion part, and the skull fixing wire is passed through the center of the one-way wire stopper and abuts against the outer wall of the one-way wire stopper.

[0017] As a preferred technical solution of the present application, the winding roller includes a line roller, and limit baffles are connected at both ends of the line roller. A transmission shaft is connected to the center of the side of the limit baffle facing away from the line roller, a power storage transmission plate is connected to the outer wall of the transmission shaft on the right, and a one-way transmission gear is connected to the end of the transmission shaft on the left.

[0018] As a preferred technical solution of the present application, the force storage mechanism includes a force storage rotating rod, which is located at the right end surface of the top of the pulling handle, and a rotating rod sleeve is connected to the side of the force storage rotating rod close to the pulling handle, and the end of the rotating rod sleeve away from the force storage rotating rod is fixedly connected to a limiting transmission ring, and the inner wall of the limiting transmission ring is fixedly connected to a first tooth block distributed in an annular manner and equidistantly, and a spring positioning rod is connected to the center of one side of the force storage rotating rod connected to the rotating rod sleeve.

[0019] As a preferred technical solution of the present application, a transmission slot is provided on the inner side of one side of the pulling handle connected to the force storage rotating rod, and the transmission slot includes a force storage transmission slot, and the force storage transmission slot is provided at the center of the end face of the pulling handle, the transmission shaft on the right side is passed through the inner side of the force storage transmission slot, the force storage transmission plate rotates on the inner side of the force storage transmission slot, a positioning transmission slot is provided on the outer side of the force storage transmission slot, a ratchet transmission slot is provided deep in the positioning transmission slot, the rotating rod sleeve is passed through the positioning transmission slot, the limiting transmission ring is limitedly rotated inside the ratchet transmission slot, and the limiting transmission ring and the rotating rod sleeve are slidingly connected to the positioning transmission slot and the ratchet transmission slot at the same time.

[0020] As a preferred technical solution of the present application, a clockwork spring is provided on the inner side of the force storage transmission groove, and the two ends of the clockwork spring are respectively fitted on the outside of the spring positioning rod and the transmission shaft, and the two ends of the clockwork spring are fixedly connected with spring fixing blocks, and the spring fixing blocks are respectively fixed on the outer surface of the force storage rotating rod and the outer surface of the force storage transmission plate, and the inner wall of the ratchet transmission groove is fixedly connected with an external transmission ratchet, and the outer wall of the external transmission ratchet is meshed and slidably connected with the first tooth block.

[0021] As a preferred technical solution of the present application, the one-way locking portion includes an unlocking drive rod, the unlocking drive rod is located at the left end surface position of the top of the pulling handle, and the one end of the unlocking drive rod connected to the pulling handle is provided with an elastic reset component, and the elastic reset component includes a limit push rod, the limit push rod is arranged in a ring and equidistantly and fixed on the side of the unlocking drive rod connected to the pulling handle, the one side of the pulling handle connected to the unlocking drive rod is provided with a push rod telescopic groove opposite to the limit push rod, the inner side of the push rod telescopic groove is provided with a second spring, the limit push rod slides inside the push rod telescopic groove, the inner side of one end surface of the limit push rod located inside the push rod telescopic groove is provided with a spring receiving groove, one end of the second spring is located inside the spring receiving groove, a closed ring groove is provided on the outer side of the one side of the unlocking drive rod connected to the pulling handle, and a closed protection ring opposite to the closed ring groove is fixed on the outer side of the one side of the pulling handle connected to the unlocking drive rod, and the closed protection ring is slidably penetrated into the closed ring groove.

[0022] As a preferred technical solution of the present application, the surfaces connecting the unlocking driving rod and the pulling handle are jointly provided with a movable telescopic groove, and an inner transmission ratchet is fixed on the inner wall of the movable telescopic groove inside the unlocking driving rod, and the inner transmission ratchet and the outer transmission ratchet both include an inner fixed wheel, and the outer wall of the inner fixed wheel is provided with an outer wheel limiting groove, and the inner side of the outer wheel limiting groove is provided with an annularly equidistantly distributed hinged ratchet claws, and the position of the hinged ratchet claw in the outer wheel limiting groove is provided with a first spring and is hinged with the ratchet claw elastic force. An outer gear is provided on the outer side of the inner fixed wheel, and a side of the outer gear close to the inner fixed wheel is embedded and rotated on the inner side of the outer wheel limiting groove, and a side of the outer gear located inside the outer wheel limiting groove is fixed with an annularly equidistantly distributed ratchet, and the ratchet is meshed with the ratchet claw, and an equidistantly arranged outer tooth block is fixed on the circumference of the outer wall of the outer gear, and the outer tooth block is respectively meshed with the first tooth block and the one-way transmission gear, and the first tooth block, the outer tooth block, and the tooth block ends of the outer wall of the one-way transmission gear are all provided with conical matching teeth.

[0023] As a preferred technical solution of the present application, the knot propulsion part includes a limiting sliding groove, which is arranged at the center of the lower side of the positioning frame, and symmetrical limiting grooves are arranged on both sides of the inner wall of the limiting sliding groove, and a positioning rotation groove is arranged at the top of the limiting sliding groove, and a conical groove is arranged on the top of the positioning rotation groove, and a knot push rod is slidably connected to the inner side of the limiting sliding groove, and limiting strips are fixed on both sides of the outer wall of the top of the knot push rod, and the limiting strip slides inside the limiting groove, and a threaded driving screw is passed through the inner side of the knot push rod, and a driving block is connected to the bottom surface of one end of the pulling handle connected to the positioning frame.

[0024] As a preferred technical solution of the present application, a screw positioning block is connected to the top end of the driving screw, and the screw positioning block is rotatably connected to the inner side of the positioning rotating groove. A conical block is connected to the top end of the screw positioning block, and the conical block is rotatably connected to the inner side of the conical notch. A driving square groove is provided on the inner side of the top surface of the conical block, and the driving square block is inserted into the inner side of the driving square groove. A stopper movable groove is provided on the inner bottom surface of the driving square groove.

[0025] As a preferred technical solution of the present application, the one-way wire block includes a symmetrical hinge block, the hinge block is fixed at the bottom of both side surfaces of the movable groove of the block, a hinge groove with two ends passing through is opened on the inner side of the hinge block, a hinge rod is passed through the inner side of the hinge groove, spring grooves are opened at both ends of the hinge groove, a third spring is arranged inside the spring groove, the third spring is sleeved on the outside of both ends of the hinge rod, one end of the third spring is fixed to the outer wall of the hinge rod, and the other end of the third spring is fixed to the inner wall of the spring groove, a wire block plate is arranged on the outside of the hinge block, one end of the wire block plate is fixedly connected to both ends of the hinge rod close to the hinge block, and an arc-shaped opening is opened at the center of one end of the wire block plate away from the hinge rod, and the arc-shaped opening is in contact with the outer wall of the skull fixation line.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] In the scheme of the present application: a unidirectionally rotating winding roller with elastic force storage is provided inside the handle for winding up longer sutures, thereby reducing the distance between the pulling handle and the positioning frame when applying force, making it easier to pull the handle and observe the tightness between the knot and the rubber positioning piece during the force application process. A knot propulsion portion is provided inside the positioning frame, which can accurately adjust the tightness between the knot and the patient's skull flap at a micro distance, thereby improving the convenience of use and operating accuracy of the device.

[0028] 1. The present invention is provided with a rotatably connected winding roller on the inner side of the pulling handle, which is used to wind up the suture thread far away from the knot, which can reduce the distance between the pulling handle and the positioning frame, facilitate pulling the suture thread to apply force to the knot position, and improve the convenience of operation and use of the skull bone flap fixation device.

[0029] 2. The present invention provides a force storage mechanism at one end of the winding roller, which is used to provide driving force for the rotation of the winding roller, so that the winding roller can automatically reel in the suture between the pulling handle and the positioning frame during use, so that the suture is always in a taut state, avoiding the suture from getting hooked during the pulling handle operation, thereby improving the safety of the operation of the device. At the same time, the rotating rod sleeve and the limiting rotating ring of the force storage mechanism slide in the positioning transmission groove and the ratchet transmission groove while rotating, and can also release it after the force storage is completed, thereby realizing the function of force release.

[0030] 3. The present invention provides a one-way locking portion at the other end of the winding roller, which can fix the wound suture thread after the power storage mechanism applies force to the winding roller to wind up the suture thread, thereby preventing the winding thread from being pulled out from the inside of the pulling handle due to tension, affecting the operation of the pulling handle and the positioning frame. At the same time, the one-way locking portion is provided with an unlocking drive rod inside, which can realize the function of freely controlling the length of the suture thread between the pulling handle and the positioning frame, thereby facilitating the free adjustment of the distance between the pulling handle and the positioning frame.

[0031] 4. The present invention provides a knot pushing part on the inner side of the positioning frame. By pulling the handle and the driving screw inside the knot pushing part, the knot at one end of the positioning frame can be slowly pushed toward the rubber pad and the position of the patient's skull flap, thereby improving the suturing accuracy of the suture line to the skull flap and ensuring that the suture tightness can be controlled with high precision.

[0032] 5. The present invention has a one-way wire stopper on the upper side of the knot propulsion part, which is used to unidirectionally limit the suture thread passed through the inside of the knot propulsion part. During the process of the knot propulsion part pushing the knot, the one-way wire stopper can be used to fix the suture thread to ensure that the knot propulsion part can stably push the knot toward the position of the rubber positioning piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the overall structure of a device for supporting and resetting a skull bone flap provided by the present invention;

[0034] Figure 2 for Figure 1 The schematic diagram of the structure of the middle section shown;

[0035] Figure 3 for Figure 2 The schematic diagram of the structure explosion of the upper part of the pull handle shown;

[0036] Figure 4 for Figure 3 The structural decomposition diagram of the power storage mechanism shown;

[0037] Figure 5 for Figure 4 The structure of the rotating rod sleeve and the external transmission ratchet wheel is shown in an enlarged cross-sectional view;

[0038] Figure 6 for Figure 5 The schematic diagram of the structure of the internal pawl of the external transmission ratchet wheel is shown in an exploded and enlarged cross-sectional view;

[0039] Figure 7 for Figure 3 The one-way locking portion is shown in the exploded and enlarged schematic diagram;

[0040] Figure 8 for Figure 7 The schematic diagram of the structural decomposition of the inner transmission ratchet shown;

[0041] Fig. 9 for Figure 2 The structure of the knot propulsion part is shown as an exploded and enlarged schematic diagram;

[0042] Fig.10 for Fig. 9 The schematic structural diagram of the knot push rod cross-section shown;

[0043] Fig.11 for Fig.10 The schematic structural diagram of the middle section of the driving screw shown;

[0044] Fig.12 for Fig.11 The structural cross-sectional exploded and enlarged schematic diagram of the linear one-way stopper is shown.

[0045] Indicated in the figure:

[0046] 1. Pull the handle; 2. Positioning frame; 3. Skull fixation wire; 4. Rubber positioning sheet;

[0047] 5. Winding roller; 51. Line roller; 52. Limit stopper; 53. Transmission shaft; 54. Power storage transmission plate; 55. One-way transmission gear; 56. Conical matching teeth;

[0048] 6. Power storage mechanism; 61. Power storage rotating rod; 611. Rotating rod sleeve; 612. Positioning transmission ring; 613. First tooth block; 614. Spring positioning rod; 62. Transmission notch; 621. Power storage transmission groove; 622. Positioning transmission groove; 623. Ratchet transmission groove; 63. Spring spring; 64. Spring fixing block; 65. External transmission ratchet; 651. Internal fixing wheel; 652. External wheel position-limiting groove; 653. Ratchet grab; 654. First spring; 655. External gear; 656. Ratchet; 657. External tooth block;

[0049] 7. One-way locking part; 71. Unlocking driving rod; 72. Elastic reset assembly; 721. Limit push rod; 722. Push rod telescopic slot; 723. Closed ring slot; 724. Closed protective ring; 725. Second spring; 726. Spring receiving slot; 73. Movable telescopic slot; 74. Internal transmission ratchet;

[0050] 8. Knot pusher; 81. Limiting lower slide groove; 811. Limiting notch; 812. Positioning rotation groove; 813. Conical notch; 82. Knot push rod; 821. Limiting bar; 83. Driving screw; 831. Screw positioning block; 832. Conical block; 833. Driving square groove; 834. Stopper movable groove; 84. Driving square block;

[0051] 9. Line body one-way stopper; 91. hinge block; 92. hinge groove; 93. hinge rod; 94. spring groove; 95. third spring; 96. line body stopper plate; 97. arc-shaped opening. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 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 should fall within the scope of protection of the present invention.

[0053] As described in the background art, it is difficult for a skull bone flap fixation device to accurately control the tightness adjustment between the knot and the patient's bone flap.

[0054] In order to solve this technical problem, the present invention provides a device for supporting and resetting a skull bone flap fixation, which is used to reel in the sutures of a skull bone flap fixation frame, facilitates the force operation of the handle, and accurately adjusts the tightness between the knot, the rubber positioning plate, and the patient's bone flap.

[0055] Specifically, please refer to Figure 1-Figure 12 The device for supporting and resetting the skull bone flap specifically comprises:

[0056] A pull handle 1 of a T-shaped structure;

[0057] A cross-shaped positioning frame 2, the top end of which is plugged and rotatably driven to be connected with the bottom end of the pull handle 1;

[0058] A skull fixing wire 3 is passed through the center of the pulling handle 1 and the positioning frame 2, and one end of the skull fixing wire 3 away from the positioning frame 2 is wound around the middle of the skull fixing wire 3 to form a knot;

[0059] A pair of rubber positioning pieces 4 slidably connected to the outside of the skull fixing wire 3, wherein the rubber positioning pieces 4 are located inside a section of the winding knot of the skull fixing wire 3;

[0060] Rotate the reel 5 connected to the top center of the pull handle 1;

[0061] A force storage mechanism 6 is rotatably connected to the right end of the top of the pulling handle 1, wherein the force storage mechanism 6 is elastically rotatably connected to the winding roller 5, and the winding roller 5 is unidirectionally limitedly rotatably connected to the pulling handle 1;

[0062] A one-way locking portion 7 is rotatably connected to the left end of the top of the pulling handle 1, the winding roller 5 is rotatably connected to the one-way locking portion 7 in a one-way limited manner, and the one-way locking portion 7 is elastically telescopically connected to the end surface of the pulling handle 1;

[0063] The knot propulsion part 8 is limitedly slid down the bottom center of the positioning frame 2, and the top of the knot propulsion part 8 is plugged and driven with the bottom end of the pulling handle 1. When the pulling handle 1 rotates, the knot propulsion part 8 is driven to rotate inside the positioning frame 2 to push the knot to move to the position of the rubber positioning piece 4;

[0064] The one-way wire stopper 9 is hinged on the upper side of the center of the knot propulsion part 8, and the skull fixing wire 3 is passed through the center of the one-way wire stopper 9 and abuts against the outer wall of the one-way wire stopper 9.

[0065] The present invention provides a device for supporting and resetting a skull bone flap fixation. A unidirectionally rotating winding roller 5 with elastic force storage is arranged inside the handle for winding up a longer suture. This can reduce the distance between the pulling handle 1 and the positioning frame 2 when applying force, facilitate the pulling of the handle, and facilitate observing the tightness between the knot and the rubber positioning piece 4 during the force application process. A knot pushing portion 8 is provided inside the positioning frame 2, which can accurately adjust the tightness between the knot and the patient's skull bone flap in a micro-distance manner, thereby improving the convenience of use and operating accuracy of the device.

[0066] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0067] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0068] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0069] Example 1

[0070] Please refer to Figure 1-Figure 12, a device for supporting and resetting a skull bone flap, the winding roller 5 includes a wire roller 51, and limit baffles 52 are connected to both ends of the wire roller 51. A transmission shaft 53 is connected to the center of one side of the limit baffle 52 facing away from the wire roller 51, and a power storage transmission plate 54 is connected to the outer wall of the transmission shaft 53 on the right side, and a one-way transmission gear 55 is connected to the end of the transmission shaft 53 on the left side.

[0071] A rotatably connected winding roller 5 is provided on the inner side of the pulling handle 1 for winding up the suture thread far away from the knot, which can reduce the distance between the pulling handle 1 and the positioning frame 2, facilitate pulling the suture thread to apply force to the knot position, and improve the convenience of operation and use of the skull bone flap fixation device.

[0072] Example 2

[0073] The device for supporting and resetting the skull bone flap provided in Example 1 is further optimized. Specifically, Figure 1-Figure 12 The force storage mechanism 6 includes a force storage rotating rod 61, which is located at the right end surface of the top of the pulling handle 1. The side of the force storage rotating rod 61 close to the pulling handle 1 is connected to a rotating rod sleeve 611, and the end of the rotating rod sleeve 611 away from the force storage rotating rod 61 is fixedly connected to a limited position transmission ring 612, and the inner wall of the limited position transmission ring 612 is fixedly connected to a first tooth block 613 distributed in an annular manner with equal distances, and a spring positioning rod 614 is connected to the center of one side of the force storage rotating rod 61 connected to the rotating rod sleeve 611.

[0074] A transmission slot 62 is provided on the inner side of one side of the pulling handle 1 connected to the force storage rotating rod 61, and the transmission slot 62 includes a force storage transmission slot 621, and the force storage transmission slot 621 is provided at the center of the end face of the pulling handle 1. The transmission shaft 53 on the right side is passed through the inner side of the force storage transmission slot 621, and the force storage transmission plate 54 rotates on the inner side of the force storage transmission slot 621. A positioning transmission slot 622 is provided on the outer side of the force storage transmission slot 621, and a ratchet transmission slot 623 is provided deep in the positioning transmission slot 622. The rotating rod sleeve 611 is passed through the interior of the positioning transmission slot 622, and the limiting transmission ring 612 is limitedly rotated in the interior of the ratchet transmission slot 623. The limiting transmission ring 612 and the rotating rod sleeve 611 are slidingly connected with the positioning transmission slot 622 and the ratchet transmission slot 623 at the same time.

[0075] A clockwork spring 63 is provided on the inner side of the force storage transmission groove 621, and the two ends of the clockwork spring 63 are respectively sleeved on the spring positioning rod 614 and the outer side of the transmission shaft 53, and the two ends of the clockwork spring 63 are fixedly connected with spring fixing blocks 64, and the spring fixing blocks 64 are respectively fixed on the outer surface of the force storage rotating rod 61 and the outer surface of the force storage transmission plate 54, and the inner wall of the ratchet transmission groove 623 is fixedly connected with an external transmission ratchet 65, and the outer wall of the external transmission ratchet 65 is meshed and slidably connected with the first tooth block 613.

[0076] A force storage mechanism 6 is provided at one end of the winding roller 5, which is used to provide driving force for the rotation of the winding roller 5, so that the winding roller 5 can automatically wind up the suture between the pulling handle 1 and the positioning frame 2 during use, so that the suture is always in a taut state, avoiding the suture from getting hooked during the operation of the pulling handle 1, thereby improving the safety of the operation of the device. At the same time, the rotating rod sleeve 611 and the limiting rotating ring of the force storage mechanism 6 slide in the positioning transmission groove 622 and the ratchet transmission groove 623 while rotating, and can also release it after the force storage is completed, thereby realizing the function of force release.

[0077] Example 3

[0078] The device for supporting and resetting the skull bone flap provided in Example 1 or 2 is further optimized. Specifically, Figure 1-Figure 12 As shown, the one-way locking portion 7 includes an unlocking driving rod 71, and the unlocking driving rod 71 is located at the left end surface of the top of the pulling handle 1. The end of the unlocking driving rod 71 connected to the pulling handle 1 is provided with an elastic reset component 72, and the elastic reset component 72 includes a limiting push rod 721, and the limiting push rod 721 is arranged in an annular shape and equidistantly and fixed on the side of the unlocking driving rod 71 connected to the pulling handle 1. The side of the pulling handle 1 connected to the unlocking driving rod 71 is provided with a push rod telescopic groove 722 opposite to the limiting push rod 721, and the inner side of the push rod telescopic groove 722 is provided with a second elastic reset component 722. Spring 725, the limiting push rod 721 slides inside the push rod telescopic groove 722, and a spring receiving groove 726 is provided on the inner side of one end surface of the limiting push rod 721 located inside the push rod telescopic groove 722, and one end of the second spring 725 is located inside the spring receiving groove 726, and a closed ring groove 723 is provided on the outer side of a side of the unlocking drive rod 71 connected to the pulling handle 1, and a closed protective ring 724 opposite to the closed ring groove 723 is fixed on the outer side of a side of the pulling handle 1 connected to the unlocking drive rod 71, and the closed protective ring 724 is slidably penetrated into the closed ring groove 723.

[0079] The surfaces connecting the unlocking driving rod 71 and the pulling handle 1 are jointly provided with a movable telescopic groove 73, and an inner transmission ratchet 74 is fixed to the inner wall of the movable telescopic groove 73 inside the unlocking driving rod 71. The inner transmission ratchet 74 and the outer transmission ratchet 65 both include an inner fixed wheel 651, and an outer wheel limiting groove 652 is provided on the outer wall of the inner fixed wheel 651. The inner side of the outer wheel limiting groove 652 is provided with hinged ratchet claws 653 equidistantly distributed in a circular shape. A first spring 654 is provided at the position where the outer wheel limiting groove 652 is hinged to the ratchet claw 653 and is elastically hinged to the ratchet claw 653. The outer side of the inner fixed wheel 651 is provided with an outer wheel limiting groove 652. An external gear 655 is provided, and one side of the external gear 655 close to the internal fixed wheel 651 is embedded in and rotated inside the outer wheel limiting groove 652. A side of the external gear 655 located inside the outer wheel limiting groove 652 is fixed with annular equidistantly distributed ratchet teeth 656, and the ratchet teeth 656 are meshed with the ratchet claws 653. The outer wall circumference of the external gear 655 is fixed with equidistantly arranged external tooth blocks 657, and the external tooth blocks 657 are respectively meshed with the first tooth block 613 and the one-way transmission gear 55. The first tooth block 613, the external tooth block 657, and the ends of the outer wall tooth blocks of the one-way transmission gear 55 are all provided with conical matching teeth 56.

[0080] A one-way locking portion 7 is provided at the other end of the winding roller 5, which can fix the wound suture thread after the force storage mechanism 6 applies force to the winding roller 5 to wind up the suture thread, so as to prevent the winding thread from being pulled out from the inside of the pulling handle 1 due to the tension, thereby affecting the operation of the pulling handle 1 and the positioning frame 2. At the same time, an unlocking drive rod 71 is provided inside the one-way locking portion 7, which can realize the function of freely controlling the length of the suture thread between the pulling handle 1 and the positioning frame 2, thereby facilitating the free adjustment of the distance between the pulling handle 1 and the positioning frame 2.

[0081] Example 4

[0082] The device for supporting and resetting the skull bone flap provided in Examples 1-3 is further optimized. Specifically, Figure 1-Figure 12 As shown, the knot propulsion portion 8 includes a limiting sliding groove 81, which is opened at the center of the lower side of the positioning frame 2, and symmetrical limiting grooves 811 are opened on both sides of the inner wall of the limiting sliding groove 81, and a positioning rotation groove 812 is opened at the top of the limiting sliding groove 81, and a conical groove 813 is opened on the top of the positioning rotation groove 812, and a knot push rod 82 is slidably connected to the inner side of the limiting sliding groove 81, and limiting strips 821 are fixed on both sides of the outer wall of the top of the knot push rod 82, and the limiting strips 821 slide on the inner side of the limiting groove 811, and a threaded driving screw 83 is passed through the inner side of the knot push rod 82, and a driving block 84 is connected to the bottom surface of one end of the pulling handle 1 connected to the positioning frame 2.

[0083] The top end of the driving screw 83 is connected to a screw positioning block 831, and the screw positioning block 831 is rotatably connected to the inner side of the positioning rotating groove 812. The top end of the screw positioning block 831 is connected to a conical block 832, and the conical block 832 is rotatably connected to the inner side of the conical notch 813. A driving square groove 833 is provided on the inner side of the top surface of the conical block 832. The driving square block 84 is inserted into the inner side of the driving square groove 833, and a blocking movable groove 834 is provided on the inner bottom surface of the driving square groove 833.

[0084] A knot pushing part 8 is provided on the inner side of the positioning frame 2. By pulling the handle 1 and the driving screw 83 inside the knot pushing part 8, the knot at one end of the positioning frame 2 can be slowly pushed toward the rubber pad and the position of the patient's skull flap, thereby improving the suturing accuracy of the suture line to the skull flap and ensuring that the suture tightness can be controlled with high precision.

[0085] Example 5

[0086] The device for supporting and resetting the skull bone flap provided in Examples 1-4 is further optimized. Specifically, Figure 1-Figure 12 As shown, the one-way wire block 9 includes a symmetrical hinge block 91, and the hinge block 91 is fixed at the bottom of both side surfaces of the block movable groove 834. A hinge groove 92 with two ends passing through is opened on the inner side of the hinge block 91, and a hinge rod 93 is passed through the inner side of the hinge groove 92. Spring grooves 94 are opened at both ends of the hinge groove 92, and a third spring 95 is arranged inside the spring groove 94. The third spring 95 is sleeved on the outer sides of both ends of the hinge rod 93, one end of the third spring 95 is fixed to the outer wall of the hinge rod 93, and the other end of the third spring 95 is fixed to the inner wall of the spring groove 94. A wire block plate 96 is arranged on the outer side of the hinge block 91, and the end of the wire block plate 96 close to the hinge block 91 is fixedly connected to the two ends of the hinge rod 93, and an arc-shaped opening 97 is opened at the center of the end of the wire block plate 96 away from the hinge rod 93, and the arc-shaped opening 97 is in contact with the outer wall of the skull fixation line 3.

[0087] A one-way stopper 9 is provided on the upper side of the knot pushing part 8, which is used to unidirectionally limit the suture thread passed through the inside of the knot pushing part 8. During the process of the knot pushing part 8 pushing the knot, the one-way stopper 9 is used to fix the suture thread to ensure that the knot pushing part 8 can stably push the knot toward the position of the rubber positioning piece 4.

[0088] The use process of the device for supporting and resetting a skull bone flap provided by the present invention is as follows:

[0089] The lower piece of the rubber positioning piece 4 is placed on the edge of the inner side of the patient's skull connecting the bone flap position. A plurality of rubber positioning pieces 4 are placed on the edge of the bone flap according to the size of the bone flap. The bone flap is then repositioned and placed at the position where the bone flap is missing in the skull. When the bone flap is placed, the bone flap will be pressed against the rubber positioning piece 4 placed at the inner edge of the skull. At this time, the skull sutures passed through the rubber positioning piece 4 can be pulled by the positioning frame 2 and the pulling handle 1. The upper piece of the rubber positioning piece 4 can be pushed to the gap position at the joint of the bone flap and the skull through the knots wound between the skull fixing lines 3. The bone flap can be fixed by the two rubber positioning pieces 4 so that the bone flap is firmly fixed in the skull position. When the knot is pushed to the position of the rubber positioning piece 4, the knot can be slowly pushed forward by the knot pushing part 8 to accurately adjust the pressing tightness of the upper rubber positioning piece 4 on the bone flap. When all the upper rubber positioning pieces 4 are adjusted, the next step can be performed.

[0090] When the knot is pushed, the force storage rotating rod 61 inside the force storage mechanism 6 can be rotated, and the spring fixing block 64 can be driven to rotate through the force storage rotating rod 61. When the spring fixing block 64 rotates, the clockwork spring 63 will rotate accordingly. When the clockwork spring 63 rotates, the spring's own elastic force will convert the spring's restoring elastic force into a pulling force that drives the force storage transmission plate 54 to rotate. As the clockwork spring 63 rotates, the clockwork spring 63 will have the power to drive the transmission shaft 53 to rotate multiple circles.

[0091] During the rotation of the force storage rotating rod 61, the force storage rotating rod 61 will also drive the rotating rod sleeve 611 to rotate. The rotating rod sleeve 611 rotates inside the positioning transmission groove 622 to drive the limiting transmission ring 612 to rotate. The rotation of the limiting transmission ring 612 will drive the first tooth block 613 to rotate. The rotation of the first tooth block 613 will drive the outer tooth block 657 of the outer transmission ratchet 65 to rotate. The rotation of the outer tooth block 657 will drive the outer gear 655 to rotate. The rotation of the outer gear 655 drives the ratchet 656 to rotate. The rotation of the ratchet 656 will push the ratchet pawl to rotate. The rotation of the pawl will push the first spring 654, allowing the first spring 654 to store force. As the outer gear 655 rotates, the ratchet 656 will continuously push the pawl to rotate, completing the force storage of the force storage rotating rod 61 on the clockwork spring 63. When the force storage rotating rod 61 has completed its rotation, the pawl will be rotated by the elastic force of the first spring 654 and push the ratchet 656, thereby preventing the outer gear 655 from rotating in the reverse direction, thereby realizing the force storage process of the force storage rotating rod 61 and preventing the reverse driving force of the clockwork spring 63 from driving the force storage rotating rod 61 to rotate.

[0092] After the force storage rotating rod 61 accumulates force and rotates, if the accumulated force needs to be released, the force storage rotating rod 61 can be pulled after the force is accumulated to separate the first tooth block 613 inside the ratchet transmission groove 623 from the outer tooth block 657 outside the outer gear 655. At this time, the driving force of the clockwork spring 63 itself can drive the force storage rotating rod 61 to rotate in the opposite direction, so that the elastic force of the clockwork spring 63 is released through the force storage rotating rod 61. During normal use, the force storage rotating rod 61 itself is pulled by the clockwork spring 63 and cannot move to the outside of the pulling handle 1. After pulling the force storage rotating rod 61, the force storage rotating rod 61 is pulled by the clockwork spring 63 and will slide back to its original position.

[0093] When the clockwork spring 63 has completed the accumulation of force, the elastic force provided by the clockwork spring 63 will drive the transmission shaft 53 to rotate. The rotation of the transmission shaft 53 will drive the limit baffle 52 and the line roller 51 to rotate at the same time. The rotation of the line roller 51 will drive the transmission shaft 53 on the left to rotate. The rotation of the left rotating shaft will drive the one-way transmission gear 55 to rotate.

[0094] When the one-way transmission gear 55 rotates, the tooth block on the inner wall of the internal transmission ratchet 74 will be driven to rotate through the tooth block on its outer wall. The rotation of the tooth block inside the internal transmission ratchet 74 will drive the outer gear 655 inside the internal transmission ratchet 74 to rotate. The rotation of the outer gear 655 will drive the ratchet 656 inside the outer gear 655 to rotate. The ratchet 656 is squeezed inside the internal transmission ratchet 74 by the thrust of the ratchet 656 and the elastic force of the first spring 654, and slides on the outer wall of the ratchet 656. The outer gear 655 is limited in the reverse direction by the ratchet pawl, thereby preventing the outer gear 655 from rotating in the reverse direction.

[0095] As the winding roller 5 is driven by the clockwork spring 63 to rotate, the winding roller 5 will pull the skull fixing wire 3. The skull fixing wire 3 inserted in the positioning frame 2 will be pulled by the tension and the skull fixing wire 3 outside the positioning frame 2 will be retracted into the positioning frame 2. When the skull fixing wire 3 is pulled to the knot position, the knot will prevent the skull fixing wire 3 from being pulled, and the skull fixing wire 3 pulled by the positioning frame 2 will be wound around the outside of the wire roller 51. At this time, one hand supports the positioning frame 2 and the other hand drives the pulling handle 1, so that the knot can be pushed toward the direction of the rubber positioning piece 4 through the knot push rod 82 inside the positioning frame 2. When the distance between the pulling handle 1 and the positioning frame 2 is long, it is only necessary to move the pulling handle 1 close to the positioning frame 2 to use the elastic force of the clockwork spring 63 to reel in the skull fixing wire 3, and use the one-way locking part 7 to position the reeled skull fixing wire 3, so that the pulling handle 1 can continue to apply tension to the skull fixing wire 3 inside the positioning frame 2.

[0096] When the skull fixing wire 3 wound inside the pulling handle 1 is too long to affect the placement of the positioning frame 2, the unlocking driving rod 71 can be pressed to push the limiting push rod 721 to slide inside the push rod telescopic slot 722, thereby applying pressure to the second spring 725, so that the internal transmission ratchet 74 connected to the unlocking driving rod 71 can slide to one side, so that the tooth block on the inner wall of the internal transmission ratchet 74 is separated from the one-way transmission gear 55. At this time, the pulling handle 1 can be pulled to one side to release the skull fixing wire 3 wound on the outside of the wire roller 51. At the same time, when the skull fixing wire 3 is released, the wire roller 51 will drive the clockwork spring 63 to rotate and store force through the transmission shaft 53.

[0097] When the skull fixing wire 3 is released, the force of the clockwork spring 63 can be relieved by pulling the force storage rotating rod 61, so that the positioning frame 2 and the pulling handle 1 can have space for placement.

[0098] When the knot is pushed to a position near the rubber positioning piece 4 through the positioning frame 2, the driving block 84 at the bottom end of the pulling handle 1 can be inserted into the inner side of the driving square groove 833 inside the knot pushing part 8, and the driving square groove 833 can be driven to rotate by rotating the pulling handle 1. The driving square groove 833 drives the driving screw 83 to rotate, and the screw positioning block 831 coaxially connected to the driving screw 83 will move with it. When the driving screw 83 rotates, the knot push rod 82 spirally engaged with it will slide on the inner side of the limiting sliding groove 81 by the thrust, and the limiting notch 811 inside the limiting sliding groove 81 and the limiting bar 821 can be used to block the knot push rod 82 from the bottom end of the positioning frame 2 to the outside. During the process of pushing the knot push rod 82 out, the knot push rod 82 will push the knot outside the skull fixing line 3.

[0099] The knot is allowed to move slowly and accurately toward the position of the rubber positioning piece 4, gradually increasing the pressing tightness between the rubber positioning piece 4 and the skull bone flap, ensuring that the rubber positioning piece 4 can fix the skull bone flap with the highest accuracy.

[0100] When the knot push rod 82 pushes the knot downward, the wire one-way stopper 9 inside the movable groove 834 of the top stopper of the driving screw 83 will clamp and fix the pulled skull fixation wire 3 through the wire stopper plate 96 and the arc-shaped opening 97 as the skull fixation wire 3 is subjected to tension.

[0101] It should be noted that: when the handle 1 is pulled to pull the skull fixing wire 3, the skull fixing wire 3 will slide upward through the arc-shaped opening 97, and when the skull fixing wire 3 is pulled in the reverse direction, since the wire one-way stopper 9 provides a rotational driving force for the wire blocking plate 96 through the hinge block 91, the hinge rod 93, and the third spring 95, the wire blocking plate 96 can always fit with the skull fixing wire 3, thereby ensuring that the skull fixing wire 3 cannot be pulled in the reverse direction, allowing the knot push rod 82 to push the knot at the bottom of the skull fixing wire 3.

[0102] When it is necessary to pull the skull fixing wire 3 in reverse, the pulling handle 1 can be separated from the positioning frame 2, and the skull fixing wire 3 inside the pulling handle 1 can be sent out to provide a movable space between the pulling handle 1 and the positioning frame 2. After there is a movable space between the pulling handle 1 and the positioning frame 2, the skull fixing wire 3 between the pulling handle 1 and the positioning frame 2 is pulled obliquely toward one side of the wire body blocking plate 96, so that the wire body blocking plate 96 is dislocated, and the arc-shaped opening 97 is separated from the skull fixing wire 3, so that the skull fixing wire 3 can be sent to the bottom of the positioning frame 2.

[0103] When the tightness and pressing accuracy of the rubber positioning piece 4 are adjusted through the knot, the positioning frame 2 is pushed to the upper side of the skull fixing line 3, the skull fixing line 3 above the knot is cut, and the next step of the skull surgery can be performed.

[0104] 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0105] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A device for supporting and resetting a skull bone flap, characterized in that: include: A pulling handle (1) of a T-shaped structure; A positioning frame (2) of a cross-shaped structure, wherein the top end of the positioning frame (2) is plugged into and rotationally driven by the bottom end of the pulling handle (1); A skull fixing wire (3) is passed through the center of the pulling handle (1) and the positioning frame (2), and one end of the skull fixing wire (3) away from the positioning frame (2) is wound around the middle of the skull fixing wire (3) to form a knot; A pair of rubber positioning pieces (4) slidably connected to the outside of the skull fixing wire (3), wherein the rubber positioning pieces (4) are located inside a section of the winding knot of the skull fixing wire (3); Rotating a reel (5) connected to the top center of the pull handle (1); A force storage mechanism (6) is rotatably connected to the top right end of the pulling handle (1), wherein the force storage mechanism (6) is elastically rotatably connected to the winding roller (5), and the winding roller (5) is unidirectionally limitedly rotatably connected to the pulling handle (1); A one-way locking portion (7) is rotatably connected to the left end of the top of the pulling handle (1), the winding roller (5) is rotatably connected to the one-way locking portion (7) in a one-way limiting manner, and the one-way locking portion (7) is elastically telescopically connected to the end surface of the pulling handle (1); A rope knot propulsion part (8) is limitedly slid down the bottom center of the positioning frame (2), and the top of the rope knot propulsion part (8) is plugged and driven with the bottom end of the pulling handle (1), and the pulling handle (1) is rotated to drive the rope knot propulsion part (8) to rotate on the inner side of the positioning frame (2) to push the rope knot to move to the position of the rubber positioning piece (4); A one-way thread stopper (9) is hinged on the upper side of the center of the knot propulsion part (8), and the skull fixing wire (3) is passed through the center of the one-way thread stopper (9) and abuts against the outer wall of the one-way thread stopper (9).

2. A device for supporting and resetting a skull bone flap according to claim 1, characterized in that: The winding roller (5) comprises a line roller (51), both ends of the line roller (51) are connected to limit baffles (52), a transmission shaft (53) is connected to the center of a side of the limit baffle (52) facing away from the line roller (51), a power storage transmission sheet (54) is connected to the outer wall of the right transmission shaft (53), and a one-way transmission gear (55) is connected to the end of the left transmission shaft (53).

3. A device for supporting and resetting a skull bone flap according to claim 2, characterized in that: The force storage mechanism (6) comprises a force storage rotating rod (61), the force storage rotating rod (61) is located at the right end surface of the top of the pulling handle (1), a side of the force storage rotating rod (61) close to the pulling handle (1) is connected to a rotating rod sleeve (611), an end of the rotating rod sleeve (611) away from the force storage rotating rod (61) is fixedly connected to a limited position transmission ring (612), an inner wall of the limited position transmission ring (612) is fixedly connected to a first tooth block (613) distributed in an annular manner with equal spacing, and a spring positioning rod (614) is connected to the center of a side of the force storage rotating rod (61) connected to the rotating rod sleeve (611).

4. The device for supporting and resetting a skull bone flap according to claim 3, characterized in that: A transmission notch (62) is provided on the inner side of a side of the pulling handle (1) connected to the power storage rotating rod (61), and the transmission notch (62) includes a power storage transmission groove (621). The power storage transmission groove (621) is provided at the center of the end face of the pulling handle (1), and the transmission shaft (53) on the right side is passed through the inner side of the power storage transmission groove (621), and the power storage transmission plate (54) rotates on the inner side of the power storage transmission groove (621). ) is provided with a positioning transmission groove (622) on the outside, a ratchet transmission groove (623) is provided deep inside the positioning transmission groove (622), the rotating rod sleeve (611) is inserted into the positioning transmission groove (622), the limiting transmission ring (612) is limitedly rotated inside the ratchet transmission groove (623), and the limiting transmission ring (612) and the rotating rod sleeve (611) are slidably connected to the positioning transmission groove (622) and the ratchet transmission groove (623) at the same time.

5. The device for supporting and resetting a skull bone flap according to claim 4, characterized in that: A spring (63) is provided inside the power storage transmission groove (621), and two ends of the spring (63) are respectively sleeved on the spring positioning rod (614) and the outer side of the transmission shaft (53). The two ends of the spring (63) are fixedly connected with spring fixing blocks (64), and the spring fixing blocks (64) are respectively fixed on the outer surface of the power storage rotating rod (61) and the outer surface of the power storage transmission plate (54). The inner wall of the ratchet transmission groove (623) is fixedly connected with an external transmission ratchet (65), and the outer wall of the external transmission ratchet (65) is meshed and slidably connected with the first tooth block (613).

6. The device for supporting and resetting a skull bone flap according to claim 5, characterized in that: The one-way locking portion (7) comprises an unlocking driving rod (71), the unlocking driving rod (71) is located at the left end surface of the top of the pulling handle (1), and an elastic reset component (72) is provided at one end of the unlocking driving rod (71) connected to the pulling handle (1), and the elastic reset component (72) comprises a limiting push rod (721), the limiting push rod (721) is arranged in a ring shape and equidistantly and is fixed to a side of the unlocking driving rod (71) connected to the pulling handle (1), and a push rod telescopic groove (722) opposite to the limiting push rod (721) is provided on one side of the pulling handle (1) connected to the unlocking driving rod (71), and a second spring is provided inside the push rod telescopic groove (722). (725), the limit push rod (721) slides inside the push rod telescopic groove (722), and a spring receiving groove (726) is provided on the inner side of one end surface of the limit push rod (721) located inside the push rod telescopic groove (722), and one end of the second spring (725) is located inside the spring receiving groove (726), and a closed ring groove (723) is provided on the outer side of a side of the unlocking drive rod (71) connected to the pulling handle (1), and a closed protective ring (724) opposite to the closed ring groove (723) is fixed on the outer side of a side of the pulling handle (1) connected to the unlocking drive rod (71), and the closed protective ring (724) is slidably penetrated inside the closed ring groove (723).

7. The device for supporting and resetting a skull flap according to claim 6, characterized in that: The surfaces connecting the unlocking driving rod (71) and the pulling handle (1) are provided with a movable telescopic groove (73); an inner transmission ratchet (74) is fixed on the inner wall of the movable telescopic groove (73) inside the unlocking driving rod (71); the inner transmission ratchet (74) and the outer transmission ratchet (65) both include an inner fixed wheel (651); an outer wheel limiting groove (652) is provided on the outer wall of the inner fixed wheel (651); ratchet claws (653) are equidistantly distributed in an annular manner on the inner side of the outer wheel limiting groove (652); a first spring (654) is provided at the position where the ratchet claw (653) is hinged to the outer wheel limiting groove (652); the outer side of the inner fixed wheel (651) is provided with an outer wheel limiting groove (652); a first spring (654) is hinged to the ratchet claw (653) by elastic force; An external gear (655) is provided, and one side of the external gear (655) close to the internal fixed wheel (651) is embedded in and rotated inside the external wheel limiting groove (652); one side of the external gear (655) located inside the external wheel limiting groove (652) is fixed with annular equidistantly distributed ratchet teeth (656); the ratchet teeth (656) are meshed with the ratchet claws (653); an equidistantly arranged external tooth blocks (657) are fixed on the circumference of the outer wall of the external gear (655); the external tooth blocks (657) are respectively meshed with the first tooth block (613) and the one-way transmission gear (55); the first tooth block (613), the external tooth block (657), and the tooth block ends of the outer wall of the one-way transmission gear (55) are all provided with conical matching teeth (56).

8. The device for supporting and resetting a skull bone flap according to claim 7, characterized in that: The rope knot propulsion part (8) comprises a limiting sliding groove (81), the limiting sliding groove (81) is arranged at the center of the lower side of the positioning frame (2), symmetrical limiting notches (811) are arranged on both sides of the inner wall of the limiting sliding groove (81), a positioning rotation groove (812) is arranged at the top of the limiting sliding groove (81), a conical notch (813) is arranged at the top of the positioning rotation groove (812), a rope knot push rod (82) is slidably connected to the inner side of the limiting sliding groove (81), limiting strips (821) are fixed on both sides of the outer wall of the top of the rope knot push rod (82), the limiting strips (821) slide on the inner side of the limiting notch (811), a threaded driving screw (83) is passed through the inner side of the rope knot push rod (82), and a driving block (84) is connected to the bottom surface of one end of the pulling handle (1) connected to the positioning frame (2).

9. The device for supporting and resetting a skull bone flap according to claim 8, characterized in that: The top end of the driving screw (83) is connected to a screw positioning block (831), and the screw positioning block (831) is rotatably connected to the inner side of the positioning rotating groove (812). The top end of the screw positioning block (831) is connected to a conical block (832), and the conical block (832) is rotatably connected to the inner side of the conical notch (813). A driving square groove (833) is provided on the inner side of the top surface of the conical block (832). The driving square block (84) is inserted into the inner side of the driving square groove (833), and a stopper movable groove (834) is provided on the inner bottom surface of the driving square groove (833).

10. The device for supporting and resetting a skull bone flap according to claim 9, characterized in that: The linear one-way stopper (9) comprises a symmetrical hinge block (91), wherein the hinge block (91) is fixed to the bottom of the two side surfaces of the stopper movable groove (834), wherein the hinge block (91) is provided with a hinge groove (92) with two ends passing through the hinge groove (92), wherein a hinge rod (93) is passed through the inner side of the hinge groove (92), wherein spring grooves (94) are provided at both ends of the hinge groove (92), wherein a third spring (95) is provided inside the spring groove (94), wherein the third spring (95) is sleeved on the outer sides of the two ends of the hinge rod (93), wherein the hinge groove (92) is provided with a ... One end of the third spring (95) is fixed to the outer wall of the hinge rod (93), and the other end of the third spring (95) is fixed to the inner wall of the spring groove (94). A wire blocking plate (96) is provided on the outer side of the hinge block (91), and one end of the wire blocking plate (96) close to the hinge block (91) is fixedly connected to both ends of the hinge rod (93). An arc-shaped opening (97) is provided at the center of one end of the wire blocking plate (96) away from the hinge rod (93), and the arc-shaped opening (97) is in close contact with the outer wall of the skull fixing line (3).

Images