A combined artificial sternum support for sternum reconstruction

Abstract

The present invention is applicable to the technical field of medical devices, and provides a combined artificial sternum support for sternum reconstruction, including a sternum manubrium support, two clavicle connectors are arranged on the sternum manubrium support, and the sternum manubrium support and the clavicle connector are respectively provided with a sternum connection countersunk hole and a clavicle connection countersunk hole, and also includes: a sternum body support, a splint moving assembly, a driving assembly, an anti-loosening assembly and an unlocking assembly; one end of the sternum body support is provided with a sliding end, and the ends of the sternum manubrium support and the sternum body support are both provided with a connecting groove. The position of the sliding end in the connecting groove is adjusted according to the length of the patient's sternum body, and then the fixing bolt is threadedly connected to the connecting countersunk hole, and the fixing bolt is tightly pressed against the sliding end, so that the sternum manubrium support is fixedly connected to the sternum body support, and secondly, two adjacent sternum body supports are also fixedly connected and the distance is adjusted by this method, so that the support is suitable for patients of different body shapes.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a combined artificial sternum support for sternum reconstruction. Background Art

[0002] The sternum is a long flat bone, wide at the top and narrow at the bottom, located subcutaneously in the middle of the anterior wall of the thorax. The upper part and both sides of the sternum are connected to the clavicle and the 7 pairs of upper costal cartilages. The natural position of the sternum in the human body is approximately frontal, slightly tilted forward and downward, slightly convex in front and concave in the back. From top to bottom, there are three parts: the manubrium, the body of the sternum, and the xiphoid process, which are connected to each other by cartilage.

[0003] Sternum resection and reconstruction is a commonly used technique after sternum tumor resection. In order to protect the organs in the chest cavity, a sternum reconstruction method, namely the "sandwich" method, is used. Usually, in the first layer, polypropylene fiber or polypropylene textile fiber patch is sutured to the inner side of the remaining sternum and ribs. The second layer completes the rigid reconstruction of the thorax, using methyl polypropylene methyl ester, stainless steel mesh / titanium mesh, and titanium plate to reconstruct the rigid thorax. The third layer completes the soft tissue coverage, in which an artificial sternum support is used to reinforce the sternum.

[0004] The existing metal sternum frame device with publication number CN106109057B, when in use, needs locking pins to pass through the ribs and the rib grasping parts, and then fix the ribs and the rib grasping parts. This method of connecting the ribs and the rib grasping parts will damage the ribs and produce irreparable holes, which is very harmful to the human body. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide a combined artificial sternum support for sternum reconstruction, aiming to solve the problem that the connection method between the ribs and the rib grasping parts will damage the ribs, produce irreparable holes, and cause great harm to the human body.

[0006] The present invention is implemented as follows: a combined artificial sternum support for sternum reconstruction, comprising a sternum manubrium support, on which two clavicle connectors are arranged, and on which the sternum manubrium support and the clavicle connector are respectively provided a sternum connection countersunk hole and a clavicle connection countersunk hole, and further comprising:

[0007] Sternum body support, splint moving assembly, driving assembly, anti-loosening assembly and unlocking assembly;

[0008] One end of the sternum body support is provided with a sliding end, and the ends of the sternum manubrium support and the sternum body support are both provided with connecting grooves, and the sliding end is slidably connected in the connecting groove, and the sternum body support is also provided with a sternum connecting countersunk hole, and the sternum body support is provided with a connecting countersunk hole;

[0009] Both sides of the sternum body support are provided with rib connecting plates, both sides of the rib connecting plates are provided with first sliding grooves, a clamping plate is slidably connected in the first sliding groove, a second sliding groove is provided at the end of the clamping plate, and a rib holding rod is slidably connected in the second sliding groove;

[0010] The splint moving assembly and the driving assembly are both arranged on the rib connecting plate, the driving assembly is used to drive the splint moving assembly, and the splint moving assembly is used to drive the splints on both sides of the rib connecting plate to move towards or in opposite directions;

[0011] A transmission assembly drives the rib holding rod to move by moving the clamping plates on both sides of the rib connecting plate toward or in the opposite direction, and the transmission assembly is arranged on the clamping plates;

[0012] The anti-loosening component and the unlocking component are both arranged on the rib connecting plate, the anti-loosening component is used to prevent the clamping plates on both sides of the rib connecting plate from moving in the opposite direction, and the unlocking component is used to release the movement restriction of the clamping plates by the anti-loosening component.

[0013] A further technical solution is that the rib connecting plate is connected to the sternum body support through an elastic connecting component, and the elastic connecting component includes side wall connecting ears, a sliding shaft and a first compression spring. Side wall connecting ears are fixed on both sides of the sternum body support, and a long hole slide groove is arranged on the side wall connecting ears. A sliding shaft is fixed on the rib connecting plate, and the sliding shaft is slidably arranged in the long hole slide groove, and the two ends of the first compression spring are respectively connected to the sliding shaft and the inner wall of the long hole slide groove.

[0014] A further technical solution is that the splint moving assembly includes a driving shaft, a first guide slider and a second compression spring. The driving shaft is rotatably connected in the rib connecting plate. A first guide slot is provided at the end of the splint. The first guide slider is slidably connected in the first guide slot. Two ends of the driving shaft are respectively provided with two sections of threads in opposite directions, and the end of the driving shaft is connected to the first guide slider through threads. The second compression spring is sleeved on the driving shaft and the second compression spring is located in the first guide slot. The driving assembly is used to drive the driving shaft to rotate.

[0015] A further technical solution is that the drive assembly includes a first mounting groove, a first bevel gear, a rotating shaft, a second bevel gear and a cover plate, the rib connecting plate is provided with a first mounting groove, the drive shaft passes through the first mounting groove, the rotating shaft is rotatably connected to the rib connecting plate, the first bevel gear and the second bevel gear are respectively fixed on the drive shaft and the rotating shaft, and the first bevel gear and the second bevel gear are meshed with each other, the rib connecting plate is provided with a countersunk groove, the cover plate is threadedly connected in the countersunk groove, and a hexagonal countersunk groove is provided at the end of the rotating shaft.

[0016] According to a further technical solution, the transmission assembly includes a pull rope and a third compression spring, the third compression spring is arranged in the second slide groove, and the two ends of the pull rope are respectively connected to the rib holding rod and the first guide slider.

[0017] A further technical solution is that the anti-loosening component includes a second mounting groove, a ratchet, a second guide groove, a second guide slider, meshing teeth, a fourth compression spring and a guide rod. The rib connecting plate is provided with a second mounting groove and a second guide groove. The ratchet is located in the second mounting groove and is fixed on the drive shaft. The second guide slider is slidably connected in the second guide groove. The meshing teeth are fixed on the second guide slider and the meshing teeth are engaged with the ratchet. The guide rod is fixed in the second guide groove and the guide rod passes through the second guide slider. The fourth compression spring is sleeved on the guide rod.

[0018] According to a further technical solution, the unlocking assembly includes a pressure rod, a steering wheel and a connecting rope. The pressure rod is slidably connected to the rib connecting plate, the steering wheel is rotatably connected in the second guide slot, and the connecting rope passes around the steering wheel and is respectively connected to the second guide slider and the pressure rod.

[0019] A combined artificial sternum support for sternum reconstruction provided by an embodiment of the present invention adjusts the position of the sliding end in the connecting groove according to the length of the patient's sternum body, then the fixing bolt is threadedly connected to the connecting countersunk hole, and the fixing bolt is tightly pressed against the sliding end, so that the sternum manubrium support and the sternum body support are fixedly connected. Secondly, two adjacent sternum body supports are also fixedly connected and the distance is adjusted by this method, thereby making the support suitable for patients of different body shapes; the driving component drives the splint moving component, and the splint moving component drives the splints on both sides of the rib connecting plate to move toward each other, thereby making the two splints on the rib connecting plate fix the ribs, and the transmission component drives the rib holding rod to move by the splints on both sides of the rib connecting plate moving toward each other, thereby making the rib holding rod cooperate with the rib connecting plate to fix the other side of the rib, thereby increasing the connection stability between the rib connecting plate and the rib. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a combined artificial sternum support for sternum reconstruction provided by an embodiment of the present invention;

[0021] Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of the structure of the mid-sternal body support;

[0022] Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the cross-sectional structure from the middle AA perspective;

[0023] Figure 4 The embodiment of the present invention provides Figure 2Schematic diagram of the structure of the middle splint;

[0024] Figure 5 The embodiment of the present invention provides Figure 1 Schematic diagram of the enlarged structure of B;

[0025] Figure 6 The embodiment of the present invention provides Figure 3 Schematic diagram of the enlarged structure of C in the middle;

[0026] Figure 7 The embodiment of the present invention provides Figure 3 Schematic diagram of the enlarged structure of D in the middle;

[0027] Figure 8 The embodiment of the present invention provides Figure 6 Schematic diagram of the enlarged structure of E.

[0028] In the accompanying drawings: sternum manubrium support 101, sternum connection countersunk hole 102, clavicle connector 103, clavicle connection countersunk hole 104, sternum body support 105, sliding end 106, connecting groove 107, rib holding rod 108, connecting countersunk hole 109, first slide groove 110, second slide groove 111, splint 112, rib connecting plate 113, elastic connection component 2, side wall connecting ear 201, long hole slide groove 202, sliding shaft 203, first compression spring 204, splint moving component 3, first installation groove 301, drive shaft 302, first Guide slot 303, first guide slider 304, second compression spring 305, drive assembly 4, first bevel gear 401, rotating shaft 402, second bevel gear 403, sink 404, cover plate 405, transmission assembly 5, pull rope 501, third compression spring 502, anti-loosening assembly 6, second mounting slot 601, ratchet 602, second guide slot 603, second guide slider 604, meshing teeth 605, fourth compression spring 606, guide rod 607, unlocking assembly 7, pressure rod 701, steering wheel 702, connecting rope 703. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0031] Embodiment 1

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, a combined artificial sternum support for sternum reconstruction provided by an embodiment of the present invention includes a sternum manubrium support 101, on which two clavicle connectors 103 are arranged, and on which a sternum connection countersunk hole 102 and a clavicle connection countersunk hole 104 are arranged respectively, and further includes:

[0033] A sternum body support 105, a splint moving component 3, a driving component 4, an anti-loosening component 6 and an unlocking component 7; a sliding end 106 is provided at one end of the sternum body support 105, and a connecting groove 107 is provided at the end of the sternum manubrium support 101 and the sternum body support 105, and the sliding end 106 is slidably connected in the connecting groove 107, and a sternum connecting countersunk hole 102 is also provided on the sternum body support 105, and a connecting countersunk hole 109 is provided on the sternum manubrium support 101 and the sternum body support 105; rib connecting plates 113 are provided on both sides of the sternum body support 105, and a first sliding groove 110 is provided on both sides of the rib connecting plate 113, and a splint 112 is slidably connected in the first sliding groove 110, and a second sliding groove 112 is provided at the end of the splint 112. 1, a rib holding rod 108 is slidably connected in the second slide groove 111; the clamp moving component 3 and the driving component 4 are both arranged on the rib connecting plate 113, and the driving component 4 is used to drive the clamp moving component 3, and the clamp moving component 3 is used to drive the clamps 112 on both sides of the rib connecting plate 113 to move toward or in the opposite direction; the transmission component 5 drives the rib holding rod 108 to move by the clamps 112 on both sides of the rib connecting plate 113 to move toward or in the opposite direction, and the transmission component 5 is arranged on the clamp 112; the anti-loosening component 6 and the unlocking component 7 are both arranged on the rib connecting plate 113, and the anti-loosening component 6 is used to prevent the clamps 112 on both sides of the rib connecting plate 113 from moving in the opposite direction, and the unlocking component 7 is used to release the movement restriction of the clamp 112 by the anti-loosening component 6.

[0034] In the embodiment of the present invention, when in use, the locking nail passes through the sternum connecting countersunk hole 102 on the sternum manubrium support 101 to connect the sternum manubrium support 101 to the sternum manubrium, the locking nail passes through the clavicle connecting piece 103 on the clavicle connecting piece 103 to connect the clavicle connecting piece 103 to the clavicle, and then the position of the sliding end 106 in the connecting groove 107 is adjusted according to the length of the patient's sternum body, and then the fixing bolt is threadedly connected to the connecting countersunk hole 109, and the fixing bolt is tightly pressed against the sliding end 106, so that the sternum manubrium support 101 and the sternum body support 105 are fixedly connected. Secondly, the two adjacent sternum body supports 105 are also fixedly connected and the distance is adjusted by this method, so that the present support is suitable for patients of different body shapes, the fixing bolt passes through the sternum connecting countersunk hole 102 on the sternum body support 105 to connect the sternum body support 105 to the sternum body, and the rib connecting plate 113 is moved so that the two splints 112 on the rib connecting plate 113 are located at the ribs. On both sides, the driving component 4 drives the clamp moving component 3, and the clamp moving component 3 drives the clamps 112 on both sides of the rib connecting plate 113 to move toward each other, so that the two clamps 112 on the rib connecting plate 113 fix the rib, and the transmission component 5 drives the rib holding rod 108 to move by the clamps 112 on both sides of the rib connecting plate 113 moving toward each other, so that the rib holding rod 108 cooperates with the rib connecting plate 113 to fix the other side of the rib, thereby increasing the connection stability between the rib connecting plate 113 and the rib. At the same time, the anti-loosening component 6 prevents the clamps 112 on both sides of the rib connecting plate 113 from moving in the opposite direction, thereby preventing the clamps 112 and the rib holding rod 108 from becoming loose, further increasing the connection stability between the rib connecting plate 113 and the rib. When the connection between the rib connecting plate 113 and the rib needs to be removed, the unlocking component 7 releases the movement restriction of the anti-loosening component 6 on the clamps 112, and then the bracket can be removed.

[0035] Embodiment 2

[0036] like Figure 1-Figure 7 As shown, a combined artificial sternum support for sternum reconstruction provided by an embodiment of the present invention includes a sternum manubrium support 101, on which two clavicle connectors 103 are arranged, and on which a sternum connection countersunk hole 102 and a clavicle connection countersunk hole 104 are arranged respectively, and further includes:

[0037] A sternum body support 105, a splint moving component 3, a driving component 4, an anti-loosening component 6 and an unlocking component 7; a sliding end 106 is provided at one end of the sternum body support 105, and a connecting groove 107 is provided at the ends of the sternum manubrium support 101 and the sternum body support 105, and the sliding end 106 is slidably connected in the connecting groove 107, and a sternum connecting countersunk hole 102 is also provided on the sternum body support 105, and a connecting countersunk hole 109 is provided on the sternum body support 105; rib connecting plates 113 are provided on both sides of the sternum body support 105, and a first slide groove 110 is provided on both sides of the rib connecting plate 113, and a splint 112 is slidably connected in the first slide groove 110, and a second slide groove 111 is provided at the end of the splint 112, and the second slide groove 111 is provided at the end of the splint 112. A rib holding rod 108 is slidably connected in the second slide groove 111; the clamp plate moving component 3 and the driving component 4 are both arranged on the rib connecting plate 113, and the driving component 4 is used to drive the clamp plate moving component 3, and the clamp plate moving component 3 is used to drive the clamp plates 112 on both sides of the rib connecting plate 113 to move toward or in the opposite direction; the transmission component 5 drives the rib holding rod 108 to move by the clamp plates 112 on both sides of the rib connecting plate 113 to move toward or in the opposite direction, and the transmission component 5 is arranged on the clamp plate 112; the anti-loosening component 6 and the unlocking component 7 are both arranged on the rib connecting plate 113, and the anti-loosening component 6 is used to prevent the clamp plates 112 on both sides of the rib connecting plate 113 from moving in the opposite direction, and the unlocking component 7 is used to release the movement restriction of the anti-loosening component 6 on the clamp plates 112;

[0038] The rib connecting plate 113 is connected to the sternum body support 105 through an elastic connecting component 2, and the elastic connecting component 2 includes a side wall connecting ear 201, a sliding shaft 203 and a first compression spring 204. The side wall connecting ears 201 are fixed on both sides of the sternum body support 105, and the side wall connecting ears 201 are provided with a long hole slide groove 202. The rib connecting plate 113 is fixed with a sliding shaft 203, and the sliding shaft 203 is slidably arranged in the long hole slide groove 202. The two ends of the first compression spring 204 are respectively connected to the sliding shaft 203 and the inner wall of the long hole slide groove 202;

[0039] The clamp plate moving assembly 3 includes a driving shaft 302, a first guide slider 304 and a second compression spring 305. The driving shaft 302 is rotatably connected in the rib connecting plate 113. The end of the clamp plate 112 is provided with a first guide slot 303. The first guide slider 304 is slidably connected in the first guide slot 303. The two ends of the driving shaft 302 are respectively provided with two sections of threads in opposite directions, and the end of the driving shaft 302 is connected to the first guide slider 304 through threads. The second compression spring 305 is sleeved on the driving shaft 302, and the second compression spring 305 is located in the first guide slot 303. The driving assembly 4 is used to drive the driving shaft 302 to rotate;

[0040] The driving assembly 4 includes a first mounting groove 301, a first bevel gear 401, a rotating shaft 402, a second bevel gear 403 and a cover plate 405. The rib connecting plate 113 is provided with a first mounting groove 301, the driving shaft 302 passes through the first mounting groove 301, the rotating shaft 402 is rotatably connected to the rib connecting plate 113, the first bevel gear 401 and the second bevel gear 403 are respectively fixed on the driving shaft 302 and the rotating shaft 402, and the first bevel gear 401 and the second bevel gear 403 are meshed and matched, the rib connecting plate 113 is provided with a sink groove 404, the cover plate 405 is threadedly connected in the sink groove 404, and the end of the rotating shaft 402 is provided with a hexagonal sink groove;

[0041] The transmission assembly 5 includes a pull rope 501 and a third compression spring 502 . The third compression spring 502 is disposed in the second slide groove 111 . Both ends of the pull rope 501 are connected to the rib holding rod 108 and the first guide slider 304 , respectively.

[0042] In the embodiment of the present invention, when in use, the locking nail passes through the sternum connection countersunk hole 102 on the sternum manubrium support 101 to connect the sternum manubrium support 101 to the sternum manubrium, and the locking nail passes through the clavicle connector 103 on the clavicle connector 103 to connect the clavicle connector 103 to the clavicle, and then the position of the sliding end 106 in the connecting groove 107 is adjusted according to the length of the patient's sternum body, and then the fixing bolt is threadedly connected to the connecting countersunk hole 109, and the fixing bolt is tightly pressed against the sliding end 106, so that the sternum manubrium support 101 is fixedly connected to the sternum body support 105, and secondly, the two adjacent sternum body supports 105 are also fixedly connected and the distance is adjusted by this method. The bracket is suitable for patients of different sizes. The fixing bolt passes through the sternum connection countersunk hole 102 on the sternum body bracket 105 to connect the sternum body bracket 105 to the sternum body. The rib connecting plate 113 is moved so that the two clamping plates 112 on the rib connecting plate 113 are located on both sides of the ribs. The wrench is inserted into the hexagonal countersunk groove at the end of the rotating shaft 402, and then the wrench is turned. The wrench drives the rotating shaft 402 to rotate, and the rotating shaft 402 drives the second bevel gear 403 to rotate. The second bevel gear 403 drives the first bevel gear 401 to rotate, and the first bevel gear 401 drives the driving shaft 302 to rotate. The driving shaft 302 passes through the two ends in opposite directions. The thread drives the two first guide sliders 304 to move toward each other, and the first guide slider 304 drives the clamping plate 112 to move through the second compression spring 305, thereby making the clamping plates 112 on both sides of the rib connecting plate 113 move toward each other, thereby making the two clamping plates 112 on the rib connecting plate 113 fix the ribs. When the clamping plates 112 are released from the ribs and cannot move, as the rotating shaft 402 rotates, the first guide slider 304 overcomes the elastic force of the second compression spring 305 and continues to move. At this time, the first guide slider 304 moves relative to the clamping plate 112, and the first guide slider 304 pulls the rib holding rod 108 through the pull rope 501, and the rib holding rod 108 overcomes the second compression spring 305. The elastic force of the three compression springs 502 moves toward the rib connecting plate 113, so that the rib holding rod 108 cooperates with the rib connecting plate 113 to fix the other side of the rib, thereby increasing the connection stability between the rib connecting plate 113 and the rib. At the same time, the anti-loosening component 6 prevents the clamps 112 on both sides of the rib connecting plate 113 from moving in the opposite direction, thereby preventing the clamps 112 and the rib holding rod 108 from becoming loose in fixing the ribs, further increasing the connection stability between the rib connecting plate 113 and the rib. When it is necessary to remove the connection between the rib connecting plate 113 and the rib, the unlocking component 7 releases the movement restriction of the clamp 112 by the anti-loosening component 6, and then the bracket can be removed.

[0043] Embodiment 3

[0044] like Figure 1-Figure 8As shown, a combined artificial sternum support for sternum reconstruction provided by an embodiment of the present invention includes a sternum manubrium support 101, on which two clavicle connectors 103 are arranged, and on which a sternum connection countersunk hole 102 and a clavicle connection countersunk hole 104 are arranged respectively, and further includes:

[0045] A sternum body support 105, a splint moving component 3, a driving component 4, an anti-loosening component 6 and an unlocking component 7; a sliding end 106 is provided at one end of the sternum body support 105, and a connecting groove 107 is provided at the ends of the sternum manubrium support 101 and the sternum body support 105, and the sliding end 106 is slidably connected in the connecting groove 107, and a sternum connecting countersunk hole 102 is also provided on the sternum body support 105, and a connecting countersunk hole 109 is provided on the sternum body support 105; rib connecting plates 113 are provided on both sides of the sternum body support 105, and a first slide groove 110 is provided on both sides of the rib connecting plate 113, and a splint 112 is slidably connected in the first slide groove 110, and a second slide groove 111 is provided at the end of the splint 112, and the second slide groove 111 is provided at the end of the splint 112. A rib holding rod 108 is slidably connected in the second slide groove 111; the clamp plate moving component 3 and the driving component 4 are both arranged on the rib connecting plate 113, and the driving component 4 is used to drive the clamp plate moving component 3, and the clamp plate moving component 3 is used to drive the clamp plates 112 on both sides of the rib connecting plate 113 to move toward or in the opposite direction; the transmission component 5 drives the rib holding rod 108 to move by the clamp plates 112 on both sides of the rib connecting plate 113 to move toward or in the opposite direction, and the transmission component 5 is arranged on the clamp plate 112; the anti-loosening component 6 and the unlocking component 7 are both arranged on the rib connecting plate 113, and the anti-loosening component 6 is used to prevent the clamp plates 112 on both sides of the rib connecting plate 113 from moving in the opposite direction, and the unlocking component 7 is used to release the movement restriction of the anti-loosening component 6 on the clamp plates 112;

[0046] The rib connecting plate 113 is connected to the sternum body support 105 through an elastic connecting component 2, and the elastic connecting component 2 includes a side wall connecting ear 201, a sliding shaft 203 and a first compression spring 204. The side wall connecting ears 201 are fixed on both sides of the sternum body support 105, and the side wall connecting ears 201 are provided with a long hole slide groove 202. The rib connecting plate 113 is fixed with a sliding shaft 203, and the sliding shaft 203 is slidably arranged in the long hole slide groove 202. The two ends of the first compression spring 204 are respectively connected to the sliding shaft 203 and the inner wall of the long hole slide groove 202;

[0047] The clamp plate moving assembly 3 includes a driving shaft 302, a first guide slider 304 and a second compression spring 305. The driving shaft 302 is rotatably connected in the rib connecting plate 113. The end of the clamp plate 112 is provided with a first guide slot 303. The first guide slider 304 is slidably connected in the first guide slot 303. The two ends of the driving shaft 302 are respectively provided with two sections of threads in opposite directions, and the end of the driving shaft 302 is connected to the first guide slider 304 through threads. The second compression spring 305 is sleeved on the driving shaft 302, and the second compression spring 305 is located in the first guide slot 303. The driving assembly 4 is used to drive the driving shaft 302 to rotate;

[0048] The driving assembly 4 includes a first mounting groove 301, a first bevel gear 401, a rotating shaft 402, a second bevel gear 403 and a cover plate 405. The rib connecting plate 113 is provided with a first mounting groove 301, the driving shaft 302 passes through the first mounting groove 301, the rotating shaft 402 is rotatably connected to the rib connecting plate 113, the first bevel gear 401 and the second bevel gear 403 are respectively fixed on the driving shaft 302 and the rotating shaft 402, and the first bevel gear 401 and the second bevel gear 403 are meshed and matched, the rib connecting plate 113 is provided with a sink groove 404, the cover plate 405 is threadedly connected in the sink groove 404, and the end of the rotating shaft 402 is provided with a hexagonal sink groove;

[0049] The transmission assembly 5 includes a pull rope 501 and a third compression spring 502. The third compression spring 502 is arranged in the second slide groove 111. The two ends of the pull rope 501 are respectively connected to the rib holding rod 108 and the first guide slider 304.

[0050] The anti-loosening assembly 6 includes a second mounting groove 601, a ratchet 602, a second guide slot 603, a second guide slider 604, an engagement tooth 605, a fourth compression spring 606 and a guide rod 607. The rib connecting plate 113 is provided with a second mounting groove 601 and a second guide slot 603. The ratchet 602 is located in the second mounting groove 601 and is fixed on the driving shaft 302. The second guide slider 604 is slidably connected in the second guide slot 603. The engagement tooth 605 is fixed on the second guide slider 604 and the engagement tooth 605 is engaged with the ratchet 602. The guide rod 607 is fixed in the second guide slot 603 and passes through the second guide slider 604. The fourth compression spring 606 is sleeved on the guide rod 607.

[0051] The unlocking assembly 7 includes a pressure rod 701, a steering wheel 702 and a connecting rope 703. The pressure rod 701 is slidably connected to the rib connecting plate 113, the steering wheel 702 is rotatably connected in the second guide slide groove 603, and the connecting rope 703 is connected to the second guide slider 604 and the pressure rod 701 respectively after bypassing the steering wheel 702.

[0052] In the embodiment of the present invention, when in use, the locking nail passes through the sternum connecting countersunk hole 102 on the sternum manubrium support 101 to connect the sternum manubrium support 101 to the sternum manubrium, and the locking nail passes through the clavicle connector 103 on the clavicle connector 103 to connect the clavicle connector 103 to the clavicle, and then the position of the sliding end 106 in the connecting groove 107 is adjusted according to the length of the patient's sternum body, and then the fixing bolt is threadedly connected to the connecting countersunk hole 109, and the fixing bolt is tightly pressed against the sliding end 106, so that the sternum manubrium support 101 is fixedly connected to the sternum body support 105. Secondly, the two adjacent sternum body supports 105 are also fixedly connected and the distance is adjusted by this method, so that the present support is suitable for patients of different body shapes. The fixing bolt passes through the sternum body support 105. The sternum connecting counterbore 102 is connected to the sternum body support 105 and the sternum body, the rib connecting plate 113 is moved, and the two clamping plates 112 on the rib connecting plate 113 are located on both sides of the rib, and the wrench is inserted into the hexagonal groove at the end of the rotating shaft 402, and then the wrench is rotated, the wrench drives the rotating shaft 402 to rotate, the rotating shaft 402 drives the second bevel gear 403 to rotate, the second bevel gear 403 drives the first bevel gear 401 to rotate, the first bevel gear 401 drives the driving shaft 302 to rotate, the driving shaft 302 drives the two first guide sliders 304 to move toward each other through the threads in opposite directions at both ends, and the first guide slider 304 drives the clamping plates 112 to move through the second compression spring 305, thereby making the clamping plates 112 on both sides of the rib connecting plate 113 When the clamping plate 112 and the rib connecting plate 113 are released and cannot move, as the rotating shaft 402 rotates, the first guide slider 304 overcomes the elastic force of the second compression spring 305 and continues to move. At this time, the first guide slider 304 moves relative to the clamping plate 112, and the first guide slider 304 pulls the rib holding rod 108 through the pull rope 501. The rib holding rod 108 overcomes the elastic force of the third compression spring 502 and moves toward the rib connecting plate 113, thereby making the rib holding rod 108 cooperate with the rib connecting plate 113 to fix the other side of the rib, thereby increasing the connection stability between the rib connecting plate 113 and the rib. At the same time, the fourth compression spring 606 pushes the second guide slider 604, and the second guide The slider 604 drives the meshing teeth 605 to mesh with the ratchet 602, so that the meshing teeth 605 limit the reverse movement of the ratchet 602, the ratchet 602 limits the reverse movement of the drive shaft 302, the drive shaft 302 limits the reverse movement of the first guide slider 304, and the first guide slider 304 limits the reverse movement of the clamping plates 112 on both sides of the rib connecting plate 113, thereby preventing the clamping plates 112 and the rib holding rods 108 from becoming loose to further increase the connection stability between the rib connecting plate 113 and the ribs, and then screw the cover plate 405 into the sink 404, the cover plate 405 seals the rib connecting plate 113, when it is necessary to remove the connection between the rib connecting plate 113 and the rib, reversely screw down the cover plate 405, and then press the pressure rod 701,The pressure rod 701 drives the second guide slider 604 to move in the opposite direction through the steering wheel 702 and the connecting rope 703. The second guide slider 604 overcomes the elastic force of the fourth compression spring 606 and drives the meshing teeth 605 to move in the opposite direction, so that the meshing teeth 605 are not meshed with the ratchet 602. The meshing teeth 605 release the reverse rotation restriction of the ratchet 602. The rotating shaft 402 is twisted in the opposite direction by the lever, and then the bracket can be disassembled.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined artificial sternum support for sternum reconstruction, comprising a sternum manubrium support, wherein the sternum manubrium support is provided with two clavicle connectors, and the sternum manubrium support and the clavicle connector are respectively provided with a sternum connection countersunk hole and a clavicle connection countersunk hole, wherein: Also includes: Sternum body support, splint moving assembly, driving assembly, anti-loosening assembly and unlocking assembly; One end of the sternum body support is provided with a sliding end, and the ends of the sternum manubrium support and the sternum body support are both provided with connecting grooves, and the sliding end is slidably connected in the connecting groove, and the sternum body support is also provided with a sternum connecting countersunk hole, and the sternum body support is provided with a connecting countersunk hole; Both sides of the sternum body support are provided with rib connecting plates, both sides of the rib connecting plates are provided with first sliding grooves, a clamping plate is slidably connected in the first sliding groove, a second sliding groove is provided at the end of the clamping plate, and a rib holding rod is slidably connected in the second sliding groove; The splint moving assembly and the driving assembly are both arranged on the rib connecting plate, the driving assembly is used to drive the splint moving assembly, and the splint moving assembly is used to drive the splints on both sides of the rib connecting plate to move towards or in opposite directions; A transmission assembly drives the rib holding rod to move by moving the clamping plates on both sides of the rib connecting plate toward or in the opposite direction, and the transmission assembly is arranged on the clamping plates; The anti-loosening component and the unlocking component are both arranged on the rib connecting plate, the anti-loosening component is used to prevent the clamping plates on both sides of the rib connecting plate from moving in the opposite direction, and the unlocking component is used to release the movement restriction of the clamping plates by the anti-loosening component.

2. The combined artificial sternum support for sternum reconstruction according to claim 1, characterized in that: The rib connecting plate is connected to the sternum body support through an elastic connecting component, and the elastic connecting component includes side wall connecting ears, a sliding shaft and a first compression spring. Side wall connecting ears are fixed on both sides of the sternum body support, and a long hole slide groove is arranged on the side wall connecting ears. A sliding shaft is fixed to the rib connecting plate, and the sliding shaft is slidably arranged in the long hole slide groove. The two ends of the first compression spring are respectively connected to the sliding shaft and the inner wall of the long hole slide groove.

3. The combined artificial sternum support for sternum reconstruction according to claim 1, characterized in that: The splint moving assembly includes a driving shaft, a first guide slider and a second compression spring. The driving shaft is rotatably connected in the rib connecting plate. A first guide slot is provided at the end of the splint. The first guide slider is slidably connected in the first guide slot. Two ends of the driving shaft are respectively provided with two sections of threads in opposite directions, and the end of the driving shaft is connected to the first guide slider through threads. The second compression spring is sleeved on the driving shaft, and the second compression spring is located in the first guide slot. The driving assembly is used to drive the driving shaft to rotate.

4. The combined artificial sternum support for sternum reconstruction according to claim 3, characterized in that: The driving assembly includes a first mounting groove, a first bevel gear, a rotating shaft, a second bevel gear and a covering plate. The rib connecting plate is provided with a first mounting groove, the driving shaft passes through the first mounting groove, the rotating shaft is rotatably connected to the rib connecting plate, the first bevel gear and the second bevel gear are respectively fixed on the driving shaft and the rotating shaft, and the first bevel gear and the second bevel gear are meshed with each other, a countersunk groove is provided on the rib connecting plate, the covering plate is threadedly connected in the countersunk groove, and a hexagonal countersunk groove is provided at the end of the rotating shaft.

5. The combined artificial sternum support for sternum reconstruction according to claim 3, characterized in that: The transmission assembly includes a pull rope and a third compression spring, the third compression spring is arranged in the second slide groove, and the two ends of the pull rope are respectively connected to the rib holding rod and the first guide slider.

6. The combined artificial sternum support for sternum reconstruction according to claim 3, characterized in that: The anti-loosening component includes a second mounting groove, a ratchet, a second guide groove, a second guide slider, meshing teeth, a fourth compression spring and a guide rod. The rib connecting plate is provided with a second mounting groove and a second guide groove. The ratchet is located in the second mounting groove and is fixed on the driving shaft. The second guide slider is slidably connected in the second guide groove. The meshing teeth are fixed on the second guide slider and the meshing teeth are meshed with the ratchet. The guide rod is fixed in the second guide groove and passes through the second guide slider. The fourth compression spring is sleeved on the guide rod.

7. The combined artificial sternum support for sternum reconstruction according to claim 6, characterized in that: The unlocking assembly includes a pressure rod, a steering wheel and a connecting rope. The pressure rod is slidably connected to the rib connecting plate, the steering wheel is rotatably connected in the second guide slide groove, and the connecting rope is connected to the second guide slider and the pressure rod respectively after passing around the steering wheel.

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