CN212661902U - Combined spinal strong orthopedic fixing device - Google Patents
Combined spinal strong orthopedic fixing device Download PDFInfo
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- CN212661902U CN212661902U CN201921892524.0U CN201921892524U CN212661902U CN 212661902 U CN212661902 U CN 212661902U CN 201921892524 U CN201921892524 U CN 201921892524U CN 212661902 U CN212661902 U CN 212661902U
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Abstract
The embodiment of the utility model discloses modular powerful orthopedic fixing device of backbone, including pedicle of vertebral arch screw group and cross-linking piece, wherein, squeeze into a set of pedicle of vertebral arch screw group respectively in the both sides of human single vertebra to by two pedicle of vertebral arch screw groups of cross-linking piece transverse connection, pedicle of vertebral arch screw group is including connective bar, connective bar casing, base, inflation nail, first block, bulb nail casing, bulb nail and second block, inflation nail, connective bar casing and connective bar form a set of fixedly, bulb nail casing form a set of fixedly, and two sets of fixed knot construct and pass through the base and connect. The utility model discloses an at first squeeze into the bulb nail respectively in the both sides of human single vertebra, two bulb nails on the horizontal piece of reuse on the single vertebra link together, and the bulb nail on every vertebra is connected with the connective bar at last to can reset single vertebra earlier, to the regulation of vertebra internal fixation device, convenient operation when being convenient for operate.
Description
Technical Field
The embodiment of the utility model provides a relate to the solid-state support technical field of vertebra, concretely relates to modular spinal powerful orthopedic fixing device.
Background
At present, after human vertebras are deformed due to fracture, pathological changes and the like, a common method is to install an internal vertebral fixator at a vertebral deformation part through an operation to perform orthopedic treatment and reduction on the vertebras, so as to help the vertebras recover functions or delay the deterioration of diseases. The spine is an indispensable part for supporting a human body, and the spine is composed of a plurality of serially connected spine joints, and if two adjacent spine joints are broken or dislocated, the human body cannot walk, so that the plurality of spine joints need to be connected into a whole.
Existing intravertebral fixation systems include pedicle screws, connecting rods, and transverse connectors. In the operation process, firstly, the pedicle screws are screwed into two sides of a vertebral body, then the connecting rods are fixed with the pedicle screws, and the transverse connector is arranged between the two connecting rods after the two sides are installed. However, the spinal internal fixation system is fixedly connected, the operation difficulty is high in the operation process, pedicle screws are stressed on one side, nail pulling or pedicle bone damage is easy to occur, and the orthopedic and fixing curative effects are seriously influenced.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a modular powerful orthopedic fixing device of backbone to because the pedicle of vertebral arch screw leads to appearing easily for unilateral atress and pulls out the problem of nail or pedicle of vertebral arch sclerotin damage in the spinal internal fixation system among the solution prior art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to a first aspect of embodiments of the present invention, a modular spinal strong orthopedic fixation device includes:
the pedicle screw group comprises a connecting rod, a connecting rod shell, a base, an expansion nail, a first cap, a ball stud shell, a ball stud and a second cap, wherein the connecting rod is arranged above the connecting rod shell, a first U-shaped opening for horizontally embedding the connecting rod into the connecting rod shell from top to bottom is formed in the outer wall of the connecting rod shell, the base is arranged below the connecting rod shell, a groove for matching and placing the bottom of the connecting rod shell is formed in the upper surface of the base and is used for enabling the rod body of the connecting rod to be in contact with the base, the expansion nail is arranged below the base, the upper end of the expansion nail penetrates through the base and is in threaded connection with the bottom of the connecting rod shell, the first cap is in threaded connection with the upper side of the connecting rod shell and is pressed on the rod body of the connecting rod for fixing the base, the expansion nail, the connecting rod shell and the connecting rod, the ball stud shell is arranged on one side of the connecting rod shell, a second U-shaped opening is formed in the outer wall of the ball stud shell, the ball stud is vertically arranged below the ball stud shell, the head ball of the ball stud is hinged in the bottom of the ball stud shell, a connector is integrally formed at one end, away from the connecting rod shell, of the base, the connector is movably arranged in the ball stud shell along the second U-shaped opening, the second cover cap is in threaded connection with the upper side of the ball stud shell and is pressed on the connector in a pressing mode and used for fixing the connector, the ball stud and the ball stud shell, and a group of pedicle screw groups are respectively pressed into two sides of a single vertebra of a human body;
the transverse connecting piece is used for connecting pedicle screw groups on two sides of a single vertebra of a human body, and the end parts of the transverse connecting piece are fixedly connected to the base of the pedicle screw groups, wherein the transverse connecting piece is arranged on part of the single vertebra.
Furthermore, the connecting rod casing is of a casing structure with an open top surface, a first threaded hole for screwing in the first cover cap is formed in the upper half of the connecting rod casing, a second threaded hole for screwing in the expansion nail is formed in the bottom of the connecting rod casing, and a first waist-shaped hole for allowing the expansion nail to pass through is formed in the middle of the base and is used for movably connecting the base between the expansion nail and the connecting rod casing.
Furthermore, the thread end of the expansion nail is provided with an expansion hole for reinforcing the connection between the base and the connecting rod shell after the expansion nail is subjected to compression expansion deformation.
Furthermore, the ball stud shell is of a shell structure with an open top surface, a third threaded hole for screwing the second cap in is formed in the upper half part of the ball stud shell, and a first spherical hole for placing the head of the ball stud into the shell is formed in the bottom of the ball stud shell.
Furthermore, the ball stud housing comprises a universal structure and a swinging structure, the universal structure is formed by directly matching a first spherical hole of the ball stud housing with the head of the ball stud, and the swinging structure is formed by integrally forming a limiting straight hole for limiting the ball stud to swing along the axial direction at the bottom end of the first spherical hole of the ball stud housing.
Furthermore, a ball stud gasket is arranged between the connector and the head of the ball stud, and a second spherical hole used for being matched with a ball stud ball head is formed in the lower end face of the ball stud gasket and used for fixing the connector and the ball stud.
Furthermore, the ball stud is a hollow ball stud or a solid ball stud, wherein a bone cement side hole communicated with the inner cavity of the ball stud is formed in the outer wall of the stud body of the hollow ball stud.
Further, counter bores have all been seted up on the both ends of cross-linking piece, and the tip setting of cross-linking piece is in the top of base, outside horizontal extension has the fixed part on the base, fourth screw hole has been seted up on the fixed part, the top of cross-linking piece tip is equipped with the locking nail, the locking nail passes the counter bore on the cross-linking piece tip to along fourth screw hole threaded connection on the base.
Further, be equipped with the auxiliary assembly that resets in advance on the pedicle of vertebral arch screw group, the auxiliary assembly that resets in advance includes moulding excellent casing, moulding stick, third block, locking pliers and jump ring, moulding excellent casing is the open shell structure of top surface to set up in the top of bulb nail casing, is equipped with the third U type opening that supplies moulding stick from the top to the horizontal embedding moulding excellent casing on the outer wall of moulding excellent casing, third block threaded connection is in the upside of moulding excellent casing to the pressfitting is on the excellent body of moulding stick, is used for moulding excellent casing, moulding stick and the fixed of third block, on the lower extreme outer wall of moulding excellent casing, lie in the both sides of bulb nail casing and extend downwards respectively and be formed with connecting portion, seted up the lock pin hole on the connecting portion to the position that corresponds the lock pin hole on the outer wall of bulb nail casing has seted up the lock pin groove, the locking pliers includes left handle of locking pliers, The locking pliers comprises a locking pliers right handle and a connecting shaft, wherein the locking pliers left handle and the locking pliers right handle are arranged in a crossed mode and form a pliers-shaped structure, the connecting shaft is rotatably connected to the cross point of the locking pliers left handle and the locking pliers right handle, the locking pliers left handle and the locking pliers right handle respectively comprise a handheld end and a clamping end, a locking block which penetrates through a locking pin hole and is embedded into a locking pin groove in a matched mode is fixedly connected to the inner sides of the clamping ends of the locking pliers left handle and the locking pliers right handle, the clamping spring is of a U-shaped structure and used for replacing a locking pliers to fasten a plastic rod shell and a ball stud shell.
Further, all extend along the direction of keeping away from the exposed core on the handheld of lock pincers left side handle and lock pincers right side handle and have the bellying that is used for preventing to skid to the equal rigid coupling in the inboard of the handheld end of lock pincers left side handle and lock pincers right side handle has the spacing bellying that is used for contradicting each other, the handheld of lock pincers left side handle and lock pincers right side handle is served and is still integratively formed with the locking plate respectively, and two locking plates are the laminating state after lock pincers left side handle and lock pincers right side handle draw close to, and are formed with the lock tooth that is used for the intermeshing locking on the binding face of two locking plates.
The embodiment of the utility model provides a have following advantage: different from the traditional fixed connection structure which firstly drills the pedicle screws, then respectively connects the two rows of pedicle screws by the connecting rod and finally connects the two rows of connecting rods by the transverse connection, the embodiment of the utility model arranges the connecting rod for installing the connecting rod on the connecting rod shell, arranges the ball head nail shell for connecting the ball head nails, and connects and combines the connecting rod shell and the ball head nail shell to form a pedicle screw group by the base, firstly drills the ball head nails, then connects the two ball head nails on a single vertebra by the transverse connection piece, and finally connects the ball head nails on each vertebra by the connecting rod, thereby firstly resetting the single vertebra to be convenient for adjusting at any time, simultaneously, the connecting rod shell and the ball head nail shell in the pedicle screw group are finally fixed by the screw in of the nut cap, and before fixing, all the components are movably connected, the spinal column orthopedic treatment device is characterized in that the spinal column orthopedic treatment device comprises a support, a plurality of sections of support legs are arranged on the support, the support legs are connected with the support legs in a fixed mode, and the support legs are connected with the support legs in a dynamic mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic overall structural view of a combined spinal strong orthopedic fixation device according to an embodiment of the present invention;
fig. 2 is an assembly schematic view of a connecting rod housing of a combined spinal strong orthopedic fixation device according to an embodiment of the present invention;
fig. 3 is an assembly view of a ball stud housing of a combined spinal strong orthopedic fixation device according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a ball stud housing of a combined spinal strong orthopedic fixation device according to an embodiment of the present invention;
fig. 5 is an assembly view of a cross-piece of a combined spinal strong orthopedic fixation device according to an embodiment of the present invention;
fig. 6 is an assembly schematic view of a shaping rod housing of a combined spinal strong orthopedic fixation device according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a locking clamp of a combined spinal strong orthopedic fixation device according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a clamp spring of a combined spinal strong orthopedic fixation device provided by an embodiment of the present invention.
In the figure: 1. a pedicle screw set; 11. a connecting rod; 12. a connecting rod housing; 121. a first U-shaped opening; 122. a first threaded hole; 123. a second threaded hole; 13. a base; 131. a connector; 132. a first kidney-shaped hole; 133. a fourth threaded hole; 14. expansion nails; 141. expanding the hole; 15. a first cap; 16. a ball stud housing; 161. a second U-shaped opening; 162. a third threaded hole; 163. a first spherical surface hole; 164. limiting straight holes; 165. a latch slot; 17. a ball stud; 171. side holes for bone cement; 18. a second cap; 2. a cross-connecting piece; 21. a countersunk hole; 3. a ball stud pad; 31. a second spherical hole; 4. locking nails; 5. a pre-reset assist assembly; 51. a shaping rod housing; 511. a third U-shaped opening; 512. a lock pin hole; 52. a shaping rod; 53. a third cap; 54. locking pliers; 541. a left handle of the locking pliers; 542. a right handle of the locking pliers; 543. a connecting shaft; 544. a locking block; 545. a protrusion portion; 546. a limiting bulge part; 547. a locking piece; 55. and a clamp spring.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the embodiment of the utility model provides a modular spinal column powerful orthopedic fixing device, including pedicle screw group 1 and cross-connecting piece 2, wherein, squeeze into a set of pedicle screw group 1 respectively in the both sides of single vertebra of human body for fixed human vertebra, and be used for the pedicle screw group 1 of fixed vertebra left and right sides by cross-connecting piece 2 transverse connection.
Pedicle screw group 1, pedicle screw group 1 include connective bar 11, connective bar casing 12, base 13, inflation nail 14, first block 15, bulb nail casing 16, bulb nail 17 and second block 18. The connective bar 11 is arranged above the connective bar housing 12 and is mainly used for connecting pedicle screws on a plurality of vertebras, the connective bar housing 12 is a housing structure with an open top surface (refer to fig. 2), a first U-shaped opening 121 for the connective bar 11 to be horizontally embedded into the connective bar housing 12 from top to bottom is arranged on the outer wall of the connective bar housing 12, and two first U-shaped openings 121 which are oppositely arranged are arranged on the outer wall of the connective bar housing 12. The base 13 is disposed below the connecting rod housing 12, and a groove for the bottom of the connecting rod housing 12 to fit into is formed on the upper surface of the base 13, so that the bottom surface of the first U-shaped opening 121 on the connecting rod housing 12 is lower than the upper surface of the base 13, and after the connecting rod 11 is mounted on the connecting rod housing 12, the rod body of the connecting rod 11 contacts the base 13. The expansion nail 14 is arranged below the base 13, the upper end of the expansion nail 14 penetrates through the base 13 and is in threaded connection with the bottom of the connecting rod shell 12, a second threaded hole 123 for the expansion nail 14 to be screwed in is formed in the bottom of the connecting rod shell 12, a first waist-shaped hole 132 for the expansion nail 14 to penetrate is formed in the middle of the base 13, the expansion nail 14 is fixed to the bottom of the connecting rod shell 12, and the base 13 is movably connected between the expansion nail 14 and the connecting rod shell 12. A first threaded hole 122 for screwing the first cap 15 is formed in the upper half part of the connecting rod housing 12, the first cap 15 is screwed into the first threaded hole 122 of the connecting rod housing 12 and is pressed on the rod body of the connecting rod 11, so that the first cap 15 presses the connecting rod 11 downwards through screwing, the connecting rod 11 is pressed on the upper surface of the base 13, the expansion nail 14 is lifted to the bottom surface of the base 13, and the base 13, the expansion nail 14, the connecting rod housing 12 and the connecting rod 11 are fixedly connected, preferably, an expansion hole 141 is formed on the threaded end of the expansion nail 14, and is used for reinforcing the connection between the base 13 and the connecting rod housing 12 after the expansion nail 14 is subjected to compression and expansion deformation. Because the mode is fixed through the screw in of first block 15, before fixed, be swing joint between each subassembly, be dynamic connection earlier promptly, be fixed in succession after the complete installation to can have certain regulation effect before the complete installation, the operation of being convenient for effectively reduce the operation degree of difficulty of operation.
Referring to fig. 3, the ball stud housing 16 is a housing structure with an open top and is disposed on one side of the connecting rod housing 12, a first spherical hole 163 is disposed at the bottom of the ball stud housing 16 for placing the head of the ball stud 17 into the housing, the ball stud 17 is vertically disposed below the ball stud housing 16, and the ball of the head of the ball stud 17 is hinged in the bottom of the ball stud housing 16 for adjusting the angle of the ball stud 17 before fixing the components, wherein the ball stud housing 16 includes a universal structure and a swing structure, the universal structure is formed by directly matching the first spherical hole 163 of the ball stud housing 16 and the head of the ball stud 17, and the swing structure is formed by integrally forming a limit straight hole 164 at the bottom end of the first spherical hole 163 of the ball stud housing 16 for limiting the swing of the ball stud 17 along the axial direction (refer to fig. 4). A connecting head 131 is integrally formed at one end of the base 13, which is far away from the connecting rod shell, and a second U-shaped opening 161 is formed on the outer wall of the ball stud shell 16, so that the connecting head 131 is movably arranged in the ball stud shell 16 along the second U-shaped opening 161, a third threaded hole 162 for screwing in the second cap 18 is formed in the upper half part of the ball stud shell 16, the second cap 18 is in threaded connection with the upper side of the ball stud shell 16 and is pressed on the connecting head 131, so that the connecting head 131 is pressed on the head of the ball stud 17 downwards through the threaded screwing in of the second cap 18, and the base 13, the ball stud shell 16 and the ball stud 17 are fixedly connected. Wherein, be equipped with bulb nail gasket 3 between the head of connector 131 and bulb nail 17, be formed with the second sphere hole 31 that is used for cooperating the bulb of bulb nail 17 on the lower terminal surface of bulb nail gasket 3, make connector 131 press on bulb nail gasket 3, and then fixed connector 131 and bulb nail 17, preferentially, bulb nail 17 is hollow bulb nail or solid bulb nail, wherein, on the nail body outer wall of hollow bulb nail, set up the bone cement side hole 171 that communicates the bulb nail 17 inner chamber, thereby can ensure to stably put into pedicle of vertebral arch screw on serious osteoporosis patient's vertebra. Because the above-mentioned mode is fixed through the screw in of second block 18, before fixed, be swing joint between each subassembly, be dynamic connection earlier, be fixed in succession after the complete installation to can have certain regulation effect before the complete installation, the operation of being convenient for effectively reduce the operation degree of difficulty of operation.
As shown in fig. 5, countersunk holes 21 have been all opened at both ends of the transverse connecting member 2, and the end of the transverse connecting member 2 is disposed above the base 13, a fixing portion is horizontally extended outward on the base 13, and a fourth threaded hole 133 has been opened at the fixing portion, a locking nail 4 is disposed above the end of the transverse connecting member 2, so that the locking nail 4 passes through the countersunk hole 21 at the end of the transverse connecting member 2, and is screwed onto the base 13 along the fourth threaded hole 133, thereby fixing the transverse connecting member 2 and the base 13, and further, the transverse connecting member 2 is transversely connected to the pedicle screw groups 1 disposed at both sides of the single vertebra of the human body. Preferably, the transverse connecting member 2 is arranged on a part of a single vertebra, namely, the single vertebra can be divided into a vertebra provided with the transverse connecting member 2 and a vertebra not provided with the transverse connecting member 2, the vertebra provided with the transverse connecting member 2 can fixedly connect two sets of pedicle screw sets 1 on the single vertebra, the transverse beam member 2 is not required to be arranged on each vertebra, and the stable arrangement of the pedicle screw sets 1 on two sides of the vertebral column can be ensured (refer to fig. 1).
The embodiment of the utility model provides a be different from traditional earlier pedicle of vertebral arch screw of beating, the reuse connective bar couples together two rows of pedicle of vertebral arch screws respectively, and the fixed connection structure who couples together two rows of connective bars is connected with the cross-linking at last, the embodiment of the utility model provides a squeeze into bulb nail 17 respectively through the both sides at single vertebra of human body earlier, two bulb nails 17 on the single vertebra of reuse cross-linking 2 are even together, couple together with bulb nail 17 on every vertebra with connective bar 11 at last to can reset and orthopedic to single vertebra earlier, to the regulation of spinal internal fixation device, convenient operation when being convenient for operate. Meanwhile, in the pedicle screw group 1, the components in the connecting rod shell 12 and the ball stud shell 16 are fixed by screwing in the caps, and before fixation, the components are movably connected, namely, dynamically connected, and fixedly connected after being completely installed, so that a certain adjusting and shape correcting effect can be achieved before complete installation.
Example 2
The difference from the embodiment 1 is that, as shown in fig. 1 and fig. 6, a pre-reduction auxiliary assembly 5 is provided on the pedicle screw set 1, and the pre-reduction auxiliary assembly 5 includes a shaping rod housing 51, a shaping rod 52, a third cap 53 and a locking clamp 54. The shaping rod shell 51 is of a shell structure with an open top surface and is arranged above the ball stud shell 16, a third U-shaped opening 511 for horizontally embedding the shaping rod 52 into the shaping rod shell 51 from top to bottom is arranged on the outer wall of the shaping rod shell 51, and a third cap 53 is in threaded connection with the upper side of the shaping rod shell 51 and is pressed on the rod body of the shaping rod 52 for fixing the shaping rod shell 51, the shaping rod 52 and the third cap 53. On the outer wall of the lower end of the shaping rod shell 51, two sides of the ball stud shell 16 are respectively extended downwards to form a connecting part, a locking pin hole 512 is formed on the connecting part, a locking pin groove 165 is formed on the outer wall of the ball stud shell 16 corresponding to the locking pin hole 512, the locking pliers 54 comprises a locking pliers left handle 541, a locking pliers right handle 542 and a connecting shaft 543 (refer to fig. 7), the locking pliers left handle 541 and the locking pliers right handle 542 are arranged in a crossed manner and form a pliers-shaped structure, the connecting shaft 543 is rotatably connected to the crossed point of the locking pliers left handle 541 and the locking pliers right handle 542 in a rotating manner, wherein the locking pliers left handle 541 and the locking pliers right handle 542 respectively comprise a handheld end and a clamping end, a locking block 544 which penetrates through the locking pin hole 512 and is matched and embedded in the locking pin groove 165 is fixedly connected to the inner side of the clamping ends of the locking pliers left handle 541 and the locking pliers right handle 542, and the ball head of the shaping rod shell 51 and the ball stud shell 16 is fixedly connected with a certain, before installing connective bar 11, through the angle of adjusting moulding excellent casing 51, can reset in advance with softer moulding excellent 52, then according to reset in advance moulding excellent 52 shape with connective bar 11 preflex, reduce the continuous adjustment of operation in-process, reduced the degree of difficulty of operation. Preferably, the pre-reduction auxiliary assembly 5 further includes a clamp spring 55 (refer to fig. 1 and 8), wherein the clamp spring 55 is of a U-shaped structure, and a suitable conventional U-shaped clamp spring can be selected, and a metal elastic buckle at the end of the clamp spring 55 passes through the lock pin hole 512 and is matched and clamped in a part of the lock pin groove 165, so as to fasten the shaping rod housing 51 and the ball stud housing 16, and the clamp spring 55 and the lock clamp 54 are alternately used due to the smaller size of the clamp spring 55, so as to facilitate the operation of the surgery.
Example 3
The difference from embodiment 2 is that, as shown in fig. 8, the bar-shaped protrusions 545 extend from the holding ends of the locking pliers left handle 541 and the locking pliers right handle 542 in the direction away from the holding ends, so that when a user holds the locking pliers left handle 541 and the locking pliers right handle 542, the protrusions 545 can be held by the fingers of the user, and the function of preventing the hand from slipping is achieved. The inner sides of the handheld ends of the left lock tong handle 541 and the right lock tong handle 542 are fixedly connected with limiting protrusions 546 which are used for abutting against each other, the left lock tong handle 541 and the right lock tong handle 542 are close to each other, and the two limiting protrusions 546 abut against each other to form limiting, so that the left lock tong handle 541 and the right lock tong handle 542 are prevented from being completely combined to influence operation. The locking tabs 547 are integrally formed at the holding ends of the locking tong left handle 541 and the locking tong right handle 542, the two locking tabs 547 are in a joint state after the locking tong left handle 541 and the locking tong right handle 542 are closed, and locking teeth for mutual meshing and locking are formed on the joint surfaces of the two locking tabs 547.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A modular spinal column high-force orthopedic fixation device, comprising:
pedicle screw group (1), pedicle screw group (1) includes connective bar (11), connective bar casing (12), base (13), inflation nail (14), first block (15), bulb nail casing (16), bulb nail (17) and second block (18), connective bar (11) set up in the top of connective bar casing (12), set up on the outer wall of connective bar casing (12) and supply connective bar (11) from the first U type opening (121) on the horizontal embedding connective bar casing (12) of follow-down, base (13) set up in the below of connective bar casing (12) to on the upper surface of base (13), be formed with the recess that supplies the bottom cooperation of connective bar casing (12) to put into, be used for the rod body contact of connective bar (11) on base (13), inflation nail (14) set up in the below of base (13), the upper end of an expansion nail (14) penetrates through the base (13) and is in threaded connection with the bottom of the connecting rod shell (12), the first cover cap (15) is in threaded connection with the upper side of the connecting rod shell (12) and is pressed on the rod body of the connecting rod (11) and used for fixing the base (13), the expansion nail (14), the connecting rod shell (12) and the connecting rod (11), the ball stud shell (16) is arranged on one side of the connecting rod shell (12), a second U-shaped opening (161) is formed in the outer wall of the ball stud shell (16), the ball stud (17) is vertically arranged below the ball stud shell (16), a head ball of the ball stud (17) is hinged in the bottom of the ball stud shell (16), a connecting head (131) is integrally formed at one end of the base (13) far away from the connecting rod shell, and the ball head (131) is arranged in the movable stud shell (16) along the second U-shaped opening (161), the second cap (18) is in threaded connection with the upper side of the ball stud shell (16), is pressed on the connecting head (131) and is used for fixing the connecting head (131), the ball stud (17) and the ball stud shell (16), wherein a group of pedicle screw groups (1) are respectively driven into two sides of a single vertebra of a human body;
the transverse connecting piece (2) is used for connecting pedicle screw groups (1) on two sides of a single vertebra of a human body, the end parts of the transverse connecting piece (2) are fixedly connected to a base (13) of the pedicle screw groups (1), and the transverse connecting piece (2) is arranged on part of the single vertebra.
2. A modular spinal strong orthopedic fixation device according to claim 1, wherein: the connecting rod casing (12) is of a casing structure with an open top surface, a first threaded hole (122) for screwing the first cap (15) is formed in the upper half part of the connecting rod casing (12), a second threaded hole (123) for screwing the expansion nail (14) is formed in the bottom of the connecting rod casing (12), and a first waist-shaped hole (132) for allowing the expansion nail (14) to pass through is formed in the middle of the base (13) and is used for movably connecting the base (13) between the expansion nail (14) and the connecting rod casing (12).
3. A modular spinal strong orthopedic fixation device according to claim 1, wherein: and the thread end of the expansion nail (14) is provided with an expansion hole (141) for reinforcing the connection between the base (13) and the connecting rod shell (12) after the expansion nail (14) is subjected to compression expansion deformation.
4. A modular spinal strong orthopedic fixation device according to claim 1, wherein: the ball stud shell (16) is of a shell structure with an open top surface, a third threaded hole (162) for screwing the second cap (18) is formed in the upper half part of the ball stud shell (16), and a first spherical hole (163) for placing the head of the ball stud (17) into the shell is formed in the bottom of the ball stud shell (16).
5. A modular spinal high-force orthopedic fixation device according to claim 4, characterized in that: the ball stud shell (16) comprises a universal structure and a swinging structure, the universal structure is formed by directly matching a first spherical hole (163) of the ball stud shell (16) with the head of a ball stud (17), and the swinging structure is formed by integrally forming a limiting straight hole (164) used for limiting the ball stud (17) to swing along the axial direction at the bottom end of the first spherical hole (163) of the ball stud shell (16).
6. A modular spinal strong orthopedic fixation device according to claim 1, wherein: be equipped with bulb nail gasket (3) between the head of connector (131) and bulb nail (17), be formed with second sphere hole (31) that are used for cooperating bulb nail (17) bulb on the lower terminal surface of bulb nail gasket (3) for the fixed of connector (131) and bulb nail (17).
7. A modular spinal strong orthopedic fixation device according to claim 1, wherein: the ball stud (17) is a hollow ball stud or a solid ball stud, wherein a bone cement side hole (171) communicated with the inner cavity of the ball stud (17) is formed in the outer wall of the stud body of the hollow ball stud.
8. A modular spinal strong orthopedic fixation device according to claim 1, wherein: counter sink (21) have all been seted up on the both ends of horizontal piece (2), and the tip setting of horizontal piece (2) is in the top of base (13), outside horizontal extension has the fixed part on base (13), fourth screw hole (133) have been seted up on the fixed part, the top of horizontal piece (2) tip is equipped with lock nail (4), lock nail (4) pass counter sink (21) on horizontal piece (2) tip to along fourth screw hole (133) threaded connection on base (13).
9. A modular spinal strong orthopedic fixation device according to claim 1, wherein: the pedicle screw group (1) is provided with a pre-resetting auxiliary component (5), the pre-resetting auxiliary component (5) comprises a shaping rod shell (51), a shaping rod (52), a third cover cap (53), locking pliers (54) and a clamping spring (55), the shaping rod shell (51) is of a shell structure with an open top surface and is arranged above the ball stud shell (16), the outer wall of the shaping rod shell (51) is provided with a third U-shaped opening (511) for horizontally embedding the shaping rod (52) into the shaping rod shell (51) from top to bottom, the third cover cap (53) is in threaded connection with the upper side of the shaping rod shell (51) and is pressed on the rod body of the shaping rod (52) for fixing the shaping rod shell (51), the shaping rod (52) and the third cover cap (53), the outer wall of the lower end of the shaping rod shell (51) extends downwards to form connecting parts on two sides of the ball stud shell (16), the connecting part is provided with a locking pin hole (512), the outer wall of the ball stud shell (16) is provided with a locking pin groove (165) at a position corresponding to the locking pin hole (512), the locking pliers (54) comprise a locking pliers left handle (541), a locking pliers right handle (542) and a connecting shaft (543), the locking pliers left handle (541) and the locking pliers right handle (542) are arranged in a crossed manner and form a pliers-shaped structure, the connecting shaft (543) is rotatably connected to the crossed point of the locking pliers left handle (541) and the locking pliers right handle (542), the locking pliers left handle (541) and the locking pliers right handle (542) respectively comprise a handheld end and a clamping end, the inner sides of the clamping ends of the locking pliers left handle (541) and the locking pliers right handle (542) are respectively and fixedly connected with a ball head locking block (544) which is used for penetrating through the locking pin hole (512) and being matched and embedded in the locking pin groove (165) for clamping and fixing the shaping stud shell (51) and the ball stud shell (16), the clamp spring (55) is of a U-shaped structure and is used for replacing a locking pliers (54) to fasten the shaping rod shell (51) and the ball stud shell (16).
10. A modular spinal strong orthopedic fixation device according to claim 9, wherein: the locking pliers comprises a locking pliers left handle (541) and a locking pliers right handle (542), wherein the handheld ends of the locking pliers left handle (541) and the locking pliers right handle (542) extend along the direction far away from the clamping end to form a protrusion (545) for preventing slipping, the inner sides of the handheld ends of the locking pliers left handle (541) and the locking pliers right handle (542) are fixedly connected with limiting protrusions (546) for mutual interference, the handheld ends of the locking pliers left handle (541) and the locking pliers right handle (542) are integrally formed with locking sheets (547), the two locking sheets (547) are in an attaching state after the locking pliers left handle (541) and the locking pliers right handle (542) are closed, and locking teeth for mutual engagement and locking are formed on attaching faces of the two locking sheets (547).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921892524.0U CN212661902U (en) | 2019-11-05 | 2019-11-05 | Combined spinal strong orthopedic fixing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921892524.0U CN212661902U (en) | 2019-11-05 | 2019-11-05 | Combined spinal strong orthopedic fixing device |
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| CN212661902U true CN212661902U (en) | 2021-03-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811800A (en) * | 2019-11-05 | 2020-02-21 | 云南欧铂斯医疗科技有限公司 | Combined spinal strong orthopedic fixing device |
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2019
- 2019-11-05 CN CN201921892524.0U patent/CN212661902U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811800A (en) * | 2019-11-05 | 2020-02-21 | 云南欧铂斯医疗科技有限公司 | Combined spinal strong orthopedic fixing device |
| CN110811800B (en) * | 2019-11-05 | 2024-07-19 | 云南欧铂斯医疗科技有限公司 | Combined type strong orthopedic fixing device for spine |
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