CN217772477U

CN217772477U - External fixation support for moving transverse bones

Info

Publication number: CN217772477U
Application number: CN202221507852.6U
Authority: CN
Inventors: 潘云川
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-11-11
Anticipated expiration: 2032-06-16

Abstract

The utility model discloses a horizontal bone removes outer fixed bolster, including last horizontal pole, the sheer pole that the interval set up, sheer pole both ends can be dismantled and set up hollow screw, go up horizontal pole both ends can be dismantled and set up the spicule, spicule bottom runs through hollow screw, sheer pole, last horizontal pole middle part connection adjusting screw, adjusting screw bottom is connected fixedly with the sheer pole through fastening bolt, the top runs through the upper horizontal pole, go up horizontal pole middle part and transversely run through the knob installing zone, set up the rotation knob with adjusting screw complex in the knob installing zone, the utility model discloses set up hollow screw, make the spicule and the hollow screw of this device be on same nail way internal coaxial line, the spicule not only has the effect of spud pile, has the track that the accurate balance of bone piece removed again; the wound is small and the occupation is small, so that the risk of multiple infection of the nail path is avoided; the utility model discloses well horizontal pole, sheer pole both ends are the fillet, and no acute angle design, bone nail bottom face are parallel with the horizontal pole, can avoid traditional support size big, and the wearing thing is rubbed to acute angle outward appearance piece, causes the not hard up risk of fixed bolster.

Description

External fixation support for moving transverse bones

Technical Field

The utility model relates to the field of medical equipment, concretely relates to outer fixed bolster is moved to horizontal bone.

Background

The bone moving operation is not only suitable for clinically treating intractable fracture diseases such as bone defect, bone nonunion, bone infection, knee joint stiffness and the like, but also suitable for treating lower limb blood circulation disorder caused by diabetic foot, lower limb arteriosclerosis obliterans, lower limb thromboangiitis obliterans and the like, and particularly, the bone moving operation is used for cutting off bones of normal parts, moving active bone blocks at a speed of prolonging 1mm every day by adopting a bone moving support, and restoring the active bone blocks to treat the bone defect, recover the bone defect and supply blood to ischemic tissues; the main principle of the bone relocation operation is based on the limb regeneration and function reconstruction theory created by Russian medical expert Ilizarov, and the principle is as follows: when the biological tissue is slowly pulled, a certain tension can be generated, the regeneration and active growth of the tissue can be stimulated, and the growth mode is cell division like that of fetal tissue; studies and clinics have demonstrated that: during cortical osteotomy and gradual extension of distraction, significant regeneration of the bone and of the blood vessels of the limb occurs.

Although the technology has a plurality of bone moving devices, the mode is along the concept of an orthopedic external fixing frame, the operation is complicated in the operation, 6-4 bone screw tops are required for fixing, the length of covering the tibia is about half, and the wound is large; the patient keeps moving after the operation, and the excessive nail path increases the infection chance. In clinical application, the bone blocks are not accurately positioned, so that the bone blocks are stretched and distorted, wholly or locally offset, raised and uneven after moving back, the consequence is that the bone blocks touch the skin, local pain is caused, the skin touches a stepped concave-convex feeling, severe skin even local skin necrosis exists, and the bone blocks are fragile to diabetics.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a horizontal bone removes outer fixed bolster, includes upper horizontal pole, the sheer pole that the interval set up, the sheer pole both ends can be dismantled and set up hollow screw, the upper horizontal pole both ends can be dismantled and set up the spicule, hollow screw is run through to spicule bottom, adjusting screw is connected at sheer pole, last horizontal pole middle part, adjusting screw is connected through fastening bolt and sheer pole bottom, and the top runs through the upper horizontal pole, it has the knob installing zone to transversely run through in the upper horizontal pole middle part, set up in the knob installing zone with adjusting screw complex rotation knob.

Further, last horizontal pole, sheer pole both ends set up spicule installation fixed knot structure, hollow screw mounting structure respectively, spicule installation fixed knot structure, hollow screw mounting structure's structure are the same, spicule installation fixed knot constructs backplate, the front bezel including relative setting, the relative centre gripping chamber that corresponds with the spicule that sets up on backplate, the front bezel, front bezel one end is passed through fastening bolt and is connected with the backplate, fastening bolt is hexagon socket head cap screw.

Furthermore, a tangent plane is arranged on one side of the adjusting screw rod close to the front plate along the length direction of the front plate, and adjusting scale marks are arranged on the tangent plane.

Furthermore, a 25mm scale is arranged on the part of the adjusting screw rod between the upper cross rod and the lower cross rod.

Furthermore, the top of the adjusting screw rod extends out of the upper cross rod and then is connected with a nut.

Furthermore, the outward circumference of the rotary knob is uniformly provided with four adjusting lobes, the adjusting lobes protrude out of the upper cross rod, and the surfaces of the adjusting lobes are sequentially provided with digital scale marks.

Furthermore, inner hexagonal slotted holes are respectively formed in two sides of each adjusting flap.

Furthermore, the top of the hollow screw is provided with an outer hexagon screw head, and the bottom of the hollow screw is provided with hollow screw threads.

Furthermore, the top of the bone needle is provided with an external hexagonal bone needle head, the bottom of the bone needle is provided with a bone needle head, and the head end of the bone needle is provided with a bone nail self-tapping thread.

After the scheme more than adopting, the utility model has the advantages of as follows: compared with the traditional 6-nail-channel and 4-nail-channel instruments, the utility model only needs to drill 2 nail channels on the osteotomy block, and the fixation is safe and reliable; the utility model is provided with the hollow screw, so that the bone needle and the hollow screw of the device are on the same axial line in the nail path, and the bone needle not only has the function of fixing the pile, but also is a track for accurate and balanced movement of the bone block; the wound is small and the occupation is small, so that the risk of multiple infection of the nail path is avoided; the diameter and the thread parameters of the spicule and the hollow screw can be adjusted according to requirements. The middle and upper cross rods, the lower cross rod, the screw rods and the bone nail heads of the utility model are all designed without acute angles, and the end faces of the bone nail heads are parallel to the cross rods, so that the risk that the traditional support is large in size, and the wearing objects are rubbed by the acute angle appearance pieces to cause the looseness of the fixed support can be avoided; the device of the utility model is small and portable, can reduce the operation links and can realize accurate positioning; the operation is simple, convenient and quick, and low-age qualified doctors can complete the operation. The operation time is shortened, and the conventional operation which needs more than 1 hour can be completed in 20-30 minutes by matching with a matched osteotomy guider.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without inventive efforts.

Fig. 1 is a schematic structural view of the external fixation frame for horizontal bone removal of the present invention.

Fig. 2 is a schematic view of the split structure of the external fixing bracket for horizontal bone moving of the present invention.

Fig. 3 is a schematic structural view of a bone pin mounting and fixing structure in the lateral bone moving external fixation support of the present invention.

Fig. 4 is a schematic structural view of an adjusting screw in the lateral bone moving external fixation bracket of the present invention.

Fig. 5 is a schematic structural view of a hollow screw in the external fixation support for lateral bone movement according to the present invention.

Fig. 6 is a schematic structural view of the spicule in the lateral bone moving external fixation bracket of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, it is only for convenience of description of the present invention and simplification of description, but not for indication or suggestion that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, the present invention should not be construed as being limited thereby. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not require that the components be absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

A transverse bone moving external fixing support comprises an upper cross rod 1 and a lower cross rod 2 which are arranged at intervals, hollow screws 3 are detachably arranged at two ends of the lower cross rod 2, the tops of the hollow screws 3 are provided with outer hexagon screw heads 301, and the bottoms of the hollow screws are provided with hollow screw threads 302; bone needles 4 are detachably arranged at two ends of the upper cross rod 1, hollow screws 3 penetrate through the bottoms of the bone needles 4, bone needle heads 401 are arranged at the tops of the bone needles 4, bone needle heads 402 are arranged at the bottoms of the bone needles 4, bone needle head self-tapping threads 403 are arranged at the ends of the bone needle heads 402, and the bone needle heads 401 are external hexagonal bone needle heads; adjusting screw 5 is connected at 2 middle parts of entablature 1, sheer pole, and adjusting screw 5 is connected with sheer pole 1 through lock bolt 12 in the bottom, and the top runs through entablature 1, and adjusting screw 5 top stretches out 1 back coupling nut 11 of entablature, and 1 middle part of entablature transversely runs through has knob installing zone 6, sets up in the knob installing zone 6 with adjusting screw 5 complex rotation knob 7.

The bone pin mounting and fixing structure 8 and the hollow screw mounting structure 9 are respectively arranged at two ends of the upper cross rod 1 and the lower cross rod 2, the bone pin mounting and fixing structure 8 and the hollow screw mounting structure 9 are identical in structure, the bone pin mounting and fixing structure 8 comprises a back plate 801 and a front plate 802 which are oppositely arranged, clamping cavities 803 corresponding to the bone pins 4 are oppositely arranged on the back plate 801 and the front plate 802, one end of the front plate 802 is connected with the back plate 801 through a fastening bolt 10, and the fastening bolt 10 is an inner hexagon bolt; through dismantling fastening bolt, can part front bezel and backplate, place spicule or cannulated screw in the centre gripping intracavity, rethread fastening bolt with front bezel and backplate fixed can, make adjusting screw 5 drive sheer pole 2 reciprocate through rotating knob 7 to drive the cannulated screw 3 of centre gripping and reciprocate.

A cutting plane 501 is arranged on one side, close to the front plate 802, of the adjusting screw rod 5 along the length direction of the front plate, adjusting scale marks 502 are arranged on the cutting plane 501, the up-and-down movement distance of the hollow screw 3 can be observed, meanwhile, four adjusting petals 701 are uniformly arranged outwards and circumferentially by rotating a knob 7, the adjusting petals 701 protrude out of the upper cross rod 1, digital scale marks 702 are sequentially arranged on the surfaces of the adjusting petals 701, hexagonal socket holes 703 are respectively arranged on two sides of each adjusting petal 701, and when the adjusting petals are difficult to rotate, a hexagonal wrench can be inserted into the hexagonal socket holes to assist in rotation; when the adjusting valve is rotated, the adjusting screw rod can rotate by a corresponding angle, so that the lower cross rod 2 drives the hollow screw 3 to coaxially slide along the bone needle 4. The hollow screw 3 is screwed into the bone block to drive the bone block to move up and down in parallel, so that the purpose of the bone moving operation is realized. .

In this embodiment, (1) the spicules can be selectively set as the following parameters: the diameter of the rod is 2.5mm, the head of the nail is quadrilateral, the side diameter is 2.5mm, the length is 10mm, and the total length is 100mm; in addition, the spicule screw head can choose 2 kinds of specifications according to the compact degree of sclerotin: 2.5-3mm, 0.4mm of thread depth and 0.45-0.7mm of thread pitch; the length of the tooth is 20mm;

(2) The cannulated screws may be optionally set to the following parameters: the inner diameter phi of the inner cavity of the hollow screw is 2.6mm; the outer diameter of the outer wall is phi 4mm, the thread diameter is 4mm, the thread depth is 0.4mm, the thread pitch is 0.7mm, the tooth length is 20mm, the nail head is hexagonal, the height is 5mm, and the total length is 40mm;

(3) The distance between the two hollow screws is set to be 30mm;

(4) The fastening bolts for fixing the back plate and the front plate can be selected from hexagon socket head cap bolts, and the hexagon socket head cap bolts can be selectively set to be the following parameters: the height of the inner hexagon bolt cap is 3mm, and the diameter of the inner hexagon bolt cap is 5mm; the diameter of the threaded rod is 3mm, the root diameter is 2.6mm, the length of the threaded rod is 8mm, the thread pitch is 0.45mm, and the total length is 11mm;

(5) The upper cross rod and the lower cross rod can be selectively set to the following parameters: the length is 40mm, the width is 10mm, and the height is 10mm; the aperture phi of the clamping cavity in the upper cross bar is 2.5mm, and the aperture phi of the clamping cavity in the lower cross bar is 4mm;

(6) The adjusting screw can be selected and set to the following parameters: the length of the rod is 45mm (points need to be lengthened because of the screw rod and the hollow nail with a nut and a nail head), the diameter is 5mm, the thread pitch is 1mm, and the tooth length is 35mm;

(7) The knob phi is 15mm, the height is 4mm, the knob is in a plum blossom shape with 4 petals, each petal represents a thread scale rotating for 1/4mm, and the knob rotates for 1mm every 24 h.

The utility model is provided with the hollow screw, so that the bone needle and the hollow screw of the device are on the same axial line in the nail path, and the bone needle not only has the function of fixing the pile, but also has a track for accurate and balanced movement of the bone block; the wound is small and the occupation is small, so that the risk of multiple infection of the nail path is avoided; the two ends of the middle and upper cross rods and the two ends of the lower cross rod of the utility model are fillets, and no acute angle is designed, and the top end face of the bone nail is parallel to the cross rods, so that the risk that the traditional support is large in size, and the wearing objects are rubbed by the acute angle appearance pieces, so that the fixed support is loosened can be avoided; the utility model has exquisite and friendly design and appearance, so that the patients have no shadows of large-scale operations psychologically, and the walking is convenient and easy to accept; when the processing and manufacturing are carried out, the utility model discloses wholly can adopt titanium aluminum alloy preparation, light, be suitable for multiple disinfection modes such as high temperature, ultraviolet ray, stifling.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, it should be understood that those skilled in the art should also understand the scope of the present invention without inventively designing the similar structure and embodiments of the present invention without departing from the spirit of the present invention.

Claims

1. The utility model provides a horizontal bone removes outer fixed bolster which characterized in that, includes last horizontal pole, the sheer pole that the interval set up, the sheer pole both ends can be dismantled and set up hollow screw, go up the horizontal pole both ends and can dismantle and set up the spicule, spicule bottom runs through hollow screw, adjusting screw is connected at sheer pole, last horizontal pole middle part, adjusting screw is passed through fastening bolt and is connected with the sheer pole in the bottom, and the top runs through the last horizontal pole, it has the knob installing zone to transversely run through in the middle part of going up the horizontal pole, set up in the knob installing zone with adjusting screw complex rotation knob.

2. The transverse bone moving external fixing support according to claim 1, wherein a bone pin mounting and fixing structure and a hollow screw mounting structure are respectively arranged at two ends of the upper cross bar and the lower cross bar, the bone pin mounting and fixing structure and the hollow screw mounting structure have the same structure, the bone pin mounting and fixing structure comprises a back plate and a front plate which are oppositely arranged, clamping cavities corresponding to the bone pins are oppositely arranged on the back plate and the front plate, one end of the front plate is connected with the back plate through a fastening bolt, and the fastening bolt is an inner hexagon bolt.

3. The lateral bone migration external fixation frame as claimed in claim 1, wherein the adjusting screw has a cutting plane along its length on a side thereof near the anterior plate, and the cutting plane has adjusting scale marks.

4. The lateral bone migration external fixation frame of claim 3, wherein a 25mm scale is provided on the portion of the adjusting screw located between the upper cross bar and the lower cross bar.

5. The lateral bone migration external fixation frame of claim 3, wherein the top of said adjustment screw extends beyond the upper cross bar and is connected to a nut.

6. The lateral bone migration external fixation bracket of claim 1, wherein the rotation knob is provided with four adjustment flaps circumferentially and uniformly outward, the adjustment flaps project out of the upper cross bar, and the surfaces of the adjustment flaps are sequentially provided with digital scale marks.

7. The lateral bone movement external fixation support of claim 6, wherein each of the adjustment flaps has hexagonal slots formed in both sides thereof.

8. The lateral bone migration external fixation frame of claim 1, wherein said cannulated screws are provided with an external hex head at the top and cannulated screw threads at the bottom.

9. The lateral bone motion external fixation frame as recited in claim 1, wherein the spicules are provided with an external hexagonal spicule head at the top and a spicule head at the bottom, and the head end of the spicule head is provided with self-tapping screw threads of the spicule.