CN218899636U - Guiding and adjusting type longitudinal bone carrying device - Google Patents

Guiding and adjusting type longitudinal bone carrying device Download PDF

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Publication number
CN218899636U
CN218899636U CN202221984158.3U CN202221984158U CN218899636U CN 218899636 U CN218899636 U CN 218899636U CN 202221984158 U CN202221984158 U CN 202221984158U CN 218899636 U CN218899636 U CN 218899636U
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adjusting
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embedded
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陈聚伍
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Abstract

The utility model discloses a guiding and adjusting type longitudinal bone carrying device which comprises a main rod, a fixed nail, an embedded sliding block and a movable nail, wherein a threaded rod section is arranged in the middle of the main rod, a strip-shaped sliding hole is arranged in the middle of the threaded rod section, the embedded sliding block is sleeved in the strip-shaped sliding hole, an adjusting screw sleeve is sleeved outside the threaded rod section and connected with the embedded sliding block, the embedded sliding block body at least comprises two through holes, each screw rod is sleeved with the adjusting screw sleeve, one screw rod comprises a threaded section positioned at the upper part and a self-tapping section positioned at the lower part, and two ends of the threaded section of the screw rod are respectively provided with a compression wire and respectively propped against the upper surface and the lower surface of the corresponding through hole. According to the utility model, the carrying direction can be controlled while carrying is continuously controlled, and the adjusting screw sleeve is screwed on the threaded rod section of the main rod, so that the adjusting screw sleeve can drive the embedded sliding block to move, and further the bone end is driven to move forwards along the axial direction.

Description

Guiding and adjusting type longitudinal bone carrying device
Technical Field
The utility model belongs to the technical field of bone handling apparatuses, and particularly relates to a longitudinal bone handling apparatus capable of guiding an adjusting direction.
Background
The advent of bone handling technology was considered a milestone for the 20 th century orthopaedics, creating a new era for the treatment of bone defects. The bone transport technology is originally created by Russian orthopedics, namely izarov, and follows the tension-stress rule of tissue regeneration, accords with the concept of natural bone reconstruction, and is a gold standard for clinically treating the defect of the long bone and the large bone at present. The existing bone carrying operation requires to wear the external fixing support for a long time for at least 2 years to ensure the rigidity so that the new bone is not fractured, but the long-term wearing of the external fixing support is inconvenient in movement, is extremely easy to cause joint stiffness, nail infection, secondary osteomyelitis and the like, and many patients have to terminate the treatment due to serious complications.
The long bone and large bone defect refers to a bone defect that bone fracture cannot heal by itself or only 110% of bone defects can be regenerated, and the bone defect is 2-3 times of the diameter of the involved long bone. The large bone defect is usually caused by high-energy wound, infection, tumor and other reasons, and is often accompanied by limb shortness, deformity, osteomyelitis, muscular atrophy and stiffness of adjacent joints, and the repair treatment correction is one of the biggest problems in the orthopedics field. A method for cutting bone at the proximal or distal end of a bone defect with the aid of an external fixator, and delivering free bone segments to the bone defect. The bone is lengthened, namely the bone is stretched to form bone, namely the bone is cut, soft tissues and blood supply are reserved, a special traction device is used for fixing two ends, a tension force is gradually applied by a tension stress rule to slowly stretch the bone segment, the body tissues are continuously stimulated, the regeneration potential of the human tissues is excited, and a new bone is formed in an osteotomy gap, so that the aim of bone regeneration is fulfilled. Existing external fixation brackets for bone handling and extension are unstable in structure and present the risk of angulation deformity, and intramedullary nails for bone extension need mechanical structures or external energy with complicated structures.
The large bone defect brings great physical and psychological injury and economic burden to patients, so how to solve the difficult problem becomes an important subject in the orthopaedics field.
The existing device applied to longitudinal bone carrying cannot realize direction adjustment in the carrying process, and the problem that the butt joint of the bone end part is inaccurate in the later period of carrying can be caused. Due to the long treatment period of bone handling, the problem of secondary surgery and even diaphysis deformation caused by the fact that the bone ends are not aligned in the later period is found.
Because the mobile jib is an integer, and its both ends need two staples to run through muscle tissue and go deep into the bone internal fixation respectively, and at least four staples need consider each staple and avoid blood vessel and nerve tissue in the in-process that runs through muscle tissue, and current like product either can't effectively avoid above-mentioned tissue, or adopts the clamping piece that is located tip and middle part to carry out the centre gripping to the staple, and near-end and distal end staple's assembly method and regulation all have trouble. In the second case, for example, an intramedullary and extramedullary combination device for bone transport and bone lengthening, with publication number CN 206964671U, comprising an external fixation frame, a compression retractor, a bone pin and an intramedullary nail, the compression retractor is arranged on the external fixation frame, the intramedullary nail extends into the intramedullary cavity, the external fixation frame is arranged in parallel with the intramedullary nail, and the bone pin passes through the external fixation frame and the intramedullary nail; the intramedullary nail is provided with a nail body, the proximal end and the distal end of the nail body are respectively provided with a bone needle hole which is convenient for bone needles to pass through, a bone needle moving groove which extends along the extension direction of the nail body is arranged between the proximal end and the distal end on the nail body, and a plurality of nail locking holes are arranged between the proximal end, the distal end and the proximal end of the nail body. The intramedullary and external combination device for bone transport and bone extension has stable structure, but is inconvenient to use, the external fixing support is troublesome to assemble and disassemble before and after the bone transport and bone extension operation is finished, the assembly is more, a plurality of fixing nails are required to be respectively installed and adjusted, the position interval between the adjacent fixing nails is fixed, and the direction is fixed, so that the device cannot effectively avoid tissues such as blood vessels, nerves and the like possibly encountered. This scheme and the general unable at any time of state of carrying of product of this field type, can't correct the transport direction at any time in the transport process any time any longer.
Disclosure of Invention
Aiming at the problem that the existing similar products are easy to generate direction deviation in the longitudinal conveying process of the bone ends and cause inaccurate butt joint, the utility model provides the guiding and adjusting type longitudinal bone conveying device which can control the conveying direction while continuously controlling the conveying.
The utility model solves the technical problems by adopting the scheme that: the utility model provides a guide adjustment formula vertical bone handling device, includes the mobile jib, and the staple, embedded slider and removal nail, there is the threaded rod section at the middle part of its mobile jib, and there is the bar slide hole at the middle part of threaded rod section, and the cover is equipped with embedded slider in the bar slide hole, and the cover is equipped with the regulation swivel nut simultaneously in threaded rod section outside, and the regulation swivel nut is connected embedded slider to rotatory this regulation swivel nut can drive embedded slider along axial translation, includes two through-holes on the embedded slider body, and each cover is equipped with a screw rod, and one of them screw rod includes the screw thread section that is located upper portion and the self-tapping section that is located the lower part, and the upper and lower surface at corresponding through-hole is just pushed up respectively to the compress tightly the thread section of this screw rod is installed respectively at the both ends, and another screw rod includes the self-tapping section that is located the lower part at least, and this screw rod cover can follow axial free slip in corresponding through-hole.
The assembly relation of each part, embedded slider match the suit in bar slide hole can the left and right sides slip, direction adjusting screw and self-adaptation slide screw suit in direction adjusting hole and free downthehole respectively, the screw thread section's of direction adjusting screw both ends are installed respectively and are pressed respectively at the upper and lower surface of corresponding through hole, because this embodiment is equipped with the barrier piece in the laminating of embedded slider upper and lower extreme respectively, thereby with upper and lower two pressing wire respectively the roof pressure upper side of upper barrier piece and the downside of lower barrier piece, upper and lower pressing wire is internal to be compressed tightly and is fixed upper and lower barrier piece upper and lower both sides of embedded slider.
The axial positions of the two ends of the main rod are respectively provided with a shaft hole, each shaft hole is respectively matched and provided with an adaptive adjusting end part, each adaptive adjusting end part is penetrated with an adjusting hole, and each adjusting hole is internally fixed with an adaptive adjusting nail.
The main body both ends of mobile jib have the fixed orifices that runs through respectively, are fixed with the staple respectively in every fixed orifices. Each fixing nail comprises a self-tapping section positioned at the lower end and a threaded section positioned at the upper end, a section of nut section is arranged in the fixing hole, and the fixing nails are connected with the nut section through the threaded sections to achieve fixation with the fixing hole, but other fixation modes are not excluded.
Each adjusting nail comprises a self-tapping section positioned at the lower end and a threaded section positioned at the upper end, a section of nut section is arranged in the adjusting hole, the adaptive adjusting nail is connected with the nut section through the threaded section, and the adjusting nail is fixed with the adjusting hole, but other fixing modes are not excluded.
Milling planes are respectively arranged on the upper side and the lower side of the threaded rod section with the diameter of the middle part of the main rod being enlarged, threaded parts on the left side and the right side are reserved, and an axial strip-shaped sliding hole is penetrated between the upper milling plane and the lower milling plane.
The whole embedded slider is the cuboid, and its upside and downside are fixed with the barrier piece respectively, and the width of upper and lower barrier piece is greater than the width of cuboid, the width of cuboid with the width of bar slide hole is unanimous, and the width of upper and lower barrier piece is greater than the width of bar slide hole to after with embedded slider suit in bar slide hole, upper and lower barrier piece can form constraint relation, prevent embedded slider break away from bar slide hole.
The embedded slider body is sequentially provided with a slider pin hole, a free hole and a direction adjusting hole in a penetrating mode, the adjusting screw sleeve body is a threaded sleeve, an annular groove is formed in the inner side of one end of the adjusting screw sleeve body, and an assembly hole is formed in the annular groove.
The lower ends of the rod bodies of the direction adjusting screw rod and the self-adaptive sliding screw rod are provided with self-tapping sections for penetrating into bone, the upper ends of the rod bodies are provided with thread sections for connecting the main rod, and the upper ends of the rod bodies are provided with anti-rotation planes; the self-adaptive sliding screw rod is sleeved in the free hole and can freely slide along the axial direction, the self-adaptive sliding screw rod is not locked or restrained, the self-tapping section at the lower end of the self-adaptive sliding screw rod is screwed into the bone, and the upper section of the self-adaptive sliding screw rod can freely slide in the free hole.
The upper ends of the direction adjusting screw and the self-adaptive sliding screw are respectively provided with an anti-rotation plane, so that corresponding anti-rotation planes are arranged in the direction adjusting hole and the free hole, and the direction adjusting screw and the self-adaptive sliding screw are respectively sleeved in the direction adjusting hole and the free hole and can only move in an axial telescopic way but cannot rotate.
The embedded sliding block is characterized in that a penetrating pin is sleeved in a sliding block pin hole of the embedded sliding block, the length of the penetrating pin is not larger than the diameter of the annular groove, but the diameter of the penetrating pin is larger than the inner diameter of the adjusting screw sleeve, so that the adjusting screw sleeve can rotate after the penetrating pin sleeve is fixed at a proper position of a sliding pin hole of the embedded sliding block, the penetrating pin and the embedded sliding block are driven to move together, when the adjusting screw sleeve is screwed to move leftwards or rightwards, the embedded sliding block is driven to move leftwards or rightwards, and after screwing action is stopped, the embedded sliding block cannot move.
The axle center of the main rod is determined to be parallel to the axle centers of the far-end bone and the near-end bone, namely, the two projections are consistent, wherein the far-end fixing nails and the adjusting nails are in one group, the near-end fixing nails and the adjusting nails are in one group, the direction adjusting screw rod and the self-adaptive sliding screw rod in the middle are in one group, and the three groups are respectively on the same straight line (penetrate through the axle center of the main rod and are respectively vertical to the main rod at the same time), so that the problem of left-right direction change of the carried bone end is not required to be considered in the carrying process.
The utility model has the beneficial effects that: the conveying direction can be controlled while the conveying is continuously controlled, and the adjusting screw sleeve is screwed on the threaded rod section of the main rod, so that the adjusting screw sleeve can drive the embedded sliding block to move, and further the bone end is driven to move forwards along the axial direction. In each moving process, the moving direction is adjusted at any time, so that the problem that the far end and the near end bone end cannot be matched and butted in the later moving period is avoided.
When the utility model is used, the fixing nails are nailed in proper positions respectively, and then the adaptive adjusting end parts are pulled outwards and rotated to select proper nailing positions capable of avoiding blood vessels and nerve tissues, and then the adaptive adjusting nails are nailed in respectively.
The utility model is fixed with the corresponding through hole of the main rod through the thread section at the upper end of the fixing nail or the adaptive adjusting nail, and the heavy fixing node is not needed to be additionally arranged, so that the installation and the fixing mode are simple and convenient.
Drawings
Fig. 1 is a perspective view of one construction of the present utility model.
Fig. 2 is a longitudinal cross-sectional view of fig. 1.
Fig. 3 is a left side view of fig. 1.
Fig. 4 is a view of the boom in each direction.
Fig. 5 is a structural view of the embedded slider.
Fig. 6 is a structural view of the direction adjustment pin.
Fig. 7 is a structural view of the screw sleeve.
Fig. 8 is a cross-sectional view of fig. 7C-C.
Fig. 9 is a sectional view of D-D in fig. 7.
Fig. 10 is an enlarged view of the portion E in fig. 2.
Fig. 11 is an enlarged view of the portion F in fig. 2.
Reference numerals in the drawings: the device comprises a main rod 1, a threaded rod section 2, a strip-shaped sliding hole 3, an adjusting screw sleeve 4, an embedded sliding block 5, a sliding block pin hole 6, a free hole 7, a direction adjusting hole 8, a penetrating pin 9, a milling plane 10, a base plate 11, a head end assembling hole 12, a fixing hole 13, an adjusting hole 14, a fixing nail 15, an adaptive adjusting nail 16, an adaptive adjusting end 17, a shaft lever 18, a shaft hole 19, a direction adjusting screw 20, an adaptive sliding screw 21, an anti-rotation plane 22, a self-tapping section 23, a thread section 24 and a compacting wire 25.
Description of the embodiments
The utility model will be further described with reference to the drawings and examples.
Example 1: a guiding and adjusting type longitudinal bone carrying device as shown in fig. 1 and 2 can be adjusted inwards or outwards at any time in the process of longitudinally carrying a near bone end, and guiding and continuously adjusting the carrying direction, so that the bone end always moves forwards along the accurate direction.
Specifically, as shown in fig. 1 and 2, a main rod is used as the main body of the outer frame, the middle part of the main rod is provided with a threaded rod section 2 with a larger diameter, the middle part of the threaded rod section 2 is provided with a strip-shaped sliding hole 3, an embedded sliding block 5 is sleeved in the strip-shaped sliding hole 3, meanwhile, an adjusting screw sleeve 4 is sleeved outside the threaded rod section 2, and the adjusting screw sleeve 4 is connected with the embedded sliding block 5, so that the embedded sliding block 5 can be driven to axially translate by rotating the adjusting screw sleeve 4.
The main rod 1 is shown in fig. 4, milling planes are respectively arranged on the upper side and the lower side of the threaded rod section 2 with the enlarged middle diameter, threaded parts on the left side and the right side are reserved, and an axial strip-shaped sliding hole 3 penetrates between the upper milling plane and the lower milling plane.
As shown in fig. 5, the embedded slider 5 is a rectangular body as a whole, and the upper side and the lower side of the embedded slider are respectively fixed with a base plate 11, and the width of the upper base plate 11 and the lower base plate 11 is larger than that of the rectangular body. The width of the rectangular body is consistent with the width of the strip-shaped sliding hole 3, and the width of the upper and lower barrier pieces 11 is larger than the width of the strip-shaped sliding hole 3, so that after the embedded sliding block is sleeved in the strip-shaped sliding hole, the upper and lower barrier pieces can form a constraint relationship to prevent the embedded sliding block 5 from being separated from the strip-shaped sliding hole 3.
It can also be seen in fig. 5 that the main body is provided with a slider pin hole 6, a free hole 7 and a direction adjusting hole 8 in sequence.
The adjusting screw sleeve 4 is shown in fig. 7-9, the main body of the adjusting screw sleeve is a threaded sleeve, an annular groove 26 is formed in the inner side of one end of the adjusting screw sleeve, and an assembly hole 27 is formed in the annular groove.
The direction adjusting screw 20 and the adaptive sliding screw 21 are shown in fig. 6, the lower end of the rod body is provided with a self-tapping section 23 for penetrating into bone, the upper end is provided with a threaded section 24 for connecting with the main rod, and the upper end is provided with an anti-rotation plane 22.
As shown in fig. 2, in the assembly relationship of each component, the embedded slider 5 is matched and sleeved in the strip-shaped sliding hole 3 and can slide left and right, the direction adjusting screw 20 and the self-adaptive sliding screw 21 are respectively sleeved in the direction adjusting hole 8 and the free hole 7, the two ends of the threaded section 24 of the direction adjusting screw 20 are respectively provided with the pressing wires 25 and respectively press against the upper surface and the lower surface of the corresponding through hole, and the upper end and the lower end of the embedded slider are respectively provided with the barrier piece 11 in a laminating manner, so that the upper pressing wires 25 are respectively pressed against the upper side of the upper barrier piece and the lower side of the lower barrier piece, and the upper pressing wires 25 are mutually pressed to fix the upper barrier piece and the lower barrier piece on the upper side and the lower side of the embedded slider.
The self-adaptive sliding screw rod 21 is sleeved in the free hole 7 and can slide freely along the axial direction, the self-adaptive sliding screw rod 21 is not locked or restrained, the self-tapping section 23 at the lower end of the self-adaptive sliding screw rod is screwed into bone, and the upper section of the self-adaptive sliding screw rod can slide freely in the free hole 7.
The upper ends of the direction adjusting screw rod 20 and the self-adaptive sliding screw rod 21 are respectively provided with an anti-rotation plane 22, so that corresponding anti-rotation planes (or the key is matched with the key groove) are arranged in the direction adjusting hole 8 and the free hole 7, and the direction adjusting screw rod 20 and the self-adaptive sliding screw rod 21 are respectively sleeved in the direction adjusting hole 8 and the free hole 7 and can only move in an axial telescopic mode but cannot rotate.
It can also be seen in fig. 2 that the slide pin bore 6 of the embedded slide is sleeved with a through pin 9, the length of the through pin 9 being no greater than the diameter of the annular groove 26, but the diameter of the through pin 9 being greater than the inner diameter of the adjusting screw sleeve 4. Therefore, after the penetrating pin 9 is sleeved and fixed at a proper position of the sliding pin hole of the embedded sliding block, as shown in fig. 2, the adjusting screw sleeve 4 can rotate and drive the penetrating pin and the embedded sliding block to move together. When the screwing adjusting screw sleeve 4 moves leftwards or rightwards, the embedded sliding block is driven to move leftwards or rightwards, and after the screwing action is stopped, the embedded sliding block cannot move.
As can also be seen in fig. 1 and 2, the main body of the main rod 1 has two through fixing holes 13, each of which is fixed with a fixing nail 15. As can be seen in fig. 2, each of the pins comprises a self-tapping section at the lower end and an external thread 151 at the upper end, and as shown in fig. 11, the fixing hole 13 comprises a nut section 171, and the pin 15 is connected with the nut section 171 through the external thread 151, so as to achieve the fixation with the fixing hole 13, but other fixation manners are not excluded.
As can be seen in fig. 2 and 4, the axial positions of the two ends of the main rod 1 are respectively provided with shaft holes 19, each shaft hole is respectively provided with an adaptive adjustment end part 17 in a matching way, each adaptive adjustment end part 17 is penetrated with an adjustment hole 14, and each adjustment hole 14 is internally fixed with an adaptive adjustment nail 16. As can be seen in fig. 2, each adjustment pin includes a self-tapping section at the lower end and an external thread 151 at the upper end, and as shown in fig. 11, the adjustment hole 14 includes a nut section 171 therein, and the compliant adjustment pin 16 is connected to the nut section 171 by the external thread 151 to effect fixation with the adjustment hole 14, although other fixation means are not excluded.
When the device is used, two fixing nails and adjusting nails positioned at two ends of the main rod are respectively nailed into distal bone and proximal bone, and the direction adjusting screw rod 20 and the self-adaptive sliding screw rod 21 are respectively screwed into the bones of the moving bone. Wherein the stapling sequence of each staple and the adjusting staple is such that the staple 15 (first staple) is first stapled in place, and then the adaptive adjusting end 17 is pulled and rotated outwards to select the appropriate stapling position that is capable of avoiding blood vessels and nerve tissue, and then the adaptive adjusting staple 16 (second staple) is stapled in place.
In this embodiment, the upper or lower compression wire 25 can be screwed at any time during the strand handling process, for example, the bone end can be driven to move outwards when the lower adjustment wire is loosened and the upper adjustment wire is screwed, and the bone end can be driven to move inwards when the upper adjustment wire is loosened and the adjustment wire is unscrewed. After the direction is adjusted in place, the upper pressing wire and the lower pressing wire are respectively screwed to realize the position fixing.
Because the adjusting screw sleeve 4 is arranged on the threaded rod section 2 of the main rod, the adjusting screw sleeve 4 can be screwed to drive the embedded sliding block to move, and then the bone end is driven to move forwards along the axial direction. In each moving process, the moving direction is adjusted at any time, so that the problem that the far end and the near end bone end cannot be matched and butted in the later moving period is avoided.
It should be noted that, when the device is used, the axis of the main rod is determined to be parallel to the axes of the distal end and the proximal end bone, that is, the projections of the two are consistent, wherein the distal end fixing nails and the proximal end adjusting nails are in a group, the proximal end fixing nails and the proximal end adjusting nails are in a group, the middle direction adjusting screw 20 and the self-adaptive sliding screw 21 are in a group, and the three groups are respectively on the same straight line (penetrate through the axis of the main rod and are respectively perpendicular to the main rod at the same time), so that the problem of left-right direction change of the transported bone end is not required to be considered in the transportation process.
In the embodiment, no matter the fixing nail or the adaptive adjusting nail is fixed together with the corresponding through hole of the main rod through the thread section at the upper end of the fixing nail, no heavy fixing node is needed to be additionally arranged, and the installation and fixing mode is simple and convenient.
Example 2: on the basis of embodiment 1, the embedded sliding block is provided with a self-locking structure, for example, one mode is that the front end of the embedded sliding block, namely the traction end, is provided with two or more pieces of structures which expand outwards, an expansion part can be supported on the inner wall of a strip-shaped sliding hole in a natural state (the inner wall of the strip-shaped sliding hole is smooth or has friction lines), the outer side of the front end of the expansion part is provided with a conical surface, the rear side wall of an annular groove of the adjusting screw sleeve is provided with a corresponding conical surface, after the adjusting screw sleeve 4 rotates, the two conical surfaces are matched and attached and slide relatively, the traction end of the embedded sliding block 5 is driven to shrink, so that the embedded sliding block can be axially moved and adjusted, otherwise, the traction end of the embedded sliding block 5 expands outwards to form a self-locking relation.
It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a vertical bone handling device of guide regulation formula, includes mobile jib (1), staple (15), embedded slider (5) and removal nail, and its characterized in that, there is threaded rod section (2) in the middle part of mobile jib (1), and there is bar slide hole (3) in the middle part of threaded rod section (2), and embedded slider (5) are equipped with to bar slide hole (3) endotheca, and the cover is equipped with adjusting screw sleeve (4) in threaded rod section (2) outside simultaneously, and adjusting screw sleeve (4) are connected embedded slider (5) to rotatory this adjusting screw sleeve (4) can drive embedded slider (5) along axial translation, including two through-holes on the embedded slider body, each cover is equipped with a screw rod, and wherein a screw rod is including screw thread section (24) and the self-tapping section (23) that are located the lower part that are located upper portion on upper portion, and the upper and lower surface at corresponding through-hole is pressed respectively to the both ends of screw thread section (24) of this screw rod are installed respectively, and another screw rod is including at least self-tapping section (23) that are located the lower part, this screw rod can freely slide along corresponding through-hole cover in axial direction.
2. The guiding and adjusting type longitudinal bone handling device according to claim 1, wherein shaft holes (19) are respectively formed at the axial positions of two ends of the main rod (1), each shaft hole is respectively matched and provided with an adaptive adjusting end part (17), each adaptive adjusting end part (17) is penetrated with an adjusting hole (14), and an adaptive adjusting nail (16) is fixed in each adjusting hole (14).
3. The guiding and adjusting type longitudinal bone handling device according to claim 1, wherein two ends of the main body of the main rod (1) are respectively provided with a through fixing hole (13), a fixing nail (15) is respectively fixed in each fixing hole, each fixing nail comprises a self-tapping section positioned at the lower end and an external thread (151) positioned at the upper end, a section of nut section (171) is arranged in the fixing hole (13), and the fixing nail (15) is connected with the nut section (171) through the external thread (151) to achieve fixation with the fixing hole (13).
4. The guided, adjustable, longitudinal bone handling device of claim 2, wherein each adjustment pin includes a self-tapping section at a lower end and an external thread (151) at an upper end, and wherein the adjustment hole (14) includes a nut section (171) therein, and wherein the compliant adjustment pin (16) is coupled to the nut section (171) via the external thread (151) for securing with the adjustment hole (14).
5. The guiding-adjusting type longitudinal bone handling apparatus according to claim 1, wherein milling planes are respectively provided on the upper and lower sides of the threaded rod section (2) with the central diameter of the main rod (1) enlarged, left and right side thread portions are reserved, and an axial bar-shaped sliding hole (3) is penetrated between the upper and lower milling planes.
6. The guiding and adjusting type longitudinal bone handling device according to claim 1, wherein the embedded sliding block (5) is integrally rectangular, the upper side and the lower side of the embedded sliding block are respectively fixed with a barrier piece (11), the widths of the upper barrier piece and the lower barrier piece (11) are larger than those of the rectangular, the widths of the rectangular are consistent with those of the strip-shaped sliding holes (3), and the widths of the upper barrier piece and the lower barrier piece (11) are larger than those of the strip-shaped sliding holes (3), so that after the embedded sliding block is sleeved in the strip-shaped sliding holes, the upper barrier piece and the lower barrier piece can form a constraint relationship to prevent the embedded sliding block (5) from being separated from the strip-shaped sliding holes (3).
7. The guiding-adjusting type longitudinal bone handling apparatus as claimed in claim 1 or 6, wherein a slider pin hole (6), a free hole (7) and a direction-adjusting hole (8) are sequentially provided in the body of the embedded slider (5), the body of the adjusting screw sleeve (4) is a threaded sleeve, an annular groove (26) is provided at the inner side of one end of the threaded sleeve, and an assembly hole (27) is provided in the annular groove.
8. The guiding-adjustable longitudinal bone handling apparatus according to claim 1, wherein the lower ends of the rod bodies of the direction adjusting screw (20) and the adaptive sliding screw (21) have self-tapping sections (23) for penetrating into bone, the upper ends thereof have threaded sections (24) for connecting the main rod, and the upper ends thereof have anti-rotation planes (22); the self-adaptive sliding screw rod (21) is sleeved in the free hole (7) and can freely slide along the axial direction, the self-adaptive sliding screw rod (21) is not locked or restrained, the self-tapping section (23) at the lower end of the self-adaptive sliding screw rod is screwed into bone, and the upper section of the self-adaptive sliding screw rod can freely slide in the free hole (7).
9. The guiding-adjustable longitudinal bone handling device according to claim 8, wherein the upper ends of the direction adjusting screw (20) and the adaptive sliding screw (21) are respectively provided with an anti-rotation plane (22), so that corresponding anti-rotation planes are arranged in the direction adjusting hole (8) and the free hole (7), and the direction adjusting screw (20) and the adaptive sliding screw (21) are respectively sleeved in the direction adjusting hole (8) and the free hole (7) and can only move in an axial telescopic manner but cannot rotate.
10. The guiding-adjusting type longitudinal bone handling apparatus according to claim 7, wherein a through pin (9) is sleeved in a slider pin hole (6) of the embedded slider, the length of the through pin (9) is not larger than the diameter of the annular groove (26), but the diameter of the through pin (9) is larger than the inner diameter of the adjusting screw sleeve (4), so that after the through pin (9) is sleeved in a proper position of the sliding pin hole of the embedded slider, the adjusting screw sleeve (4) can be rotated, and the through pin and the embedded slider are driven to move together, when the adjusting screw sleeve (4) is screwed to move leftwards or rightwards, the embedded slider is driven to move leftwards or rightwards, and after the screwing action is stopped, the embedded slider cannot move.
CN202221984158.3U 2022-07-29 2022-07-29 Guiding and adjusting type longitudinal bone carrying device Active CN218899636U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221984158.3U CN218899636U (en) 2022-07-29 2022-07-29 Guiding and adjusting type longitudinal bone carrying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221984158.3U CN218899636U (en) 2022-07-29 2022-07-29 Guiding and adjusting type longitudinal bone carrying device

Publications (1)

Publication Number Publication Date
CN218899636U true CN218899636U (en) 2023-04-25

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