A tissue migration device

Abstract

The present invention discloses a tissue migration device, including a first positioning device, a second positioning device and a bone migration device. The bone migration device can drive the bone to migrate up and down. The bone migration device is arranged between the first positioning device and the second positioning device. The two ends of a moving rope of the bone migration device are respectively connected to the first positioning device and the second positioning device, and the moving rope penetrates through the bone migration device. The bone migration device includes a limiting mechanism, and the limiting mechanism is used to limit the distance of one-time migration of the bone migration device. The operation of the present invention is simple, the migration system has a stable structure, and the tiny distances of rising and falling during bone migration are fixed, preventing pain caused by improper force during operation. The design of the moving rope reduces the weight and volume of the whole device, and can adjust the migration angle as well as the migration and positioning range.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a tissue migration device. Background Art

[0002] In many countries at home and abroad, diabetic foot, a complication of diabetes, is the main cause of lower limb amputation in diabetic patients. Diabetic foot is a disease caused by diabetic neuropathy, which leads to lower limb vascular lesions, resulting in arterial sclerosis, occlusion of peripheral small arteries, and other bacterial infections. Among domestic diabetic patients, approximately 25% will experience varying degrees of diabetic foot symptoms, and severe patients need to undergo lower limb amputation.

[0003] Currently, for diabetic foot, in order to protect the lower limbs, avoid amputation of patients, reduce the physical pain and psychological trauma of patients after surgery, and achieve the ideal treatment effect to the greatest extent. There appears a transverse bone migration technique derived from the Ilizarov technique and its stress-tension law principle. By moving a selected part of the bone piece on the bone up and down, signals for the proliferation function and synthesis function of cell transmission are stimulated in the brain, enabling the patient's body to activate the self-repair ability, improving the blood transport ability of the patient's diabetic foot, and thus promoting the healing of leg and foot infections and ulcers. However, the existing transverse bone migration technology components have low accuracy in bone migration distance, and the fixed range of the bone migration components is limited, prone to problems of bone migration adjustment errors.

[0004] Therefore, the comparative document CN109907786A designs a transverse bone transport device, which adjusts the horizontal distance between bone nails on the upper bracket to adapt to the actual fixation area of various patients, and at the same time uses a digital scale method to control the bone migration distance. However, its structure is relatively complex, with a large weight and volume, and it does not solve the problem of adjustment errors caused by improper force application. Summary of the Invention

[0005] To solve the above problems, the object of the present invention is to propose a tissue migration device, aiming to solve the problem that excessive handling at one time due to improper force application during the operation of the existing transverse bone transport device, resulting in patients having to endure great pain.

[0006] To achieve the above object, according to an embodiment disclosed by the present invention, a tissue migration device is provided, including a first positioning device, a second positioning device, and a bone migration device, and the bone migration device can drive the bone to migrate up and down;

[0007] The bone migration device is arranged between the first positioning device and the second positioning device. The two ends of a moving rope are respectively connected to the first positioning device and the second positioning device, and the moving rope passes through the bone migration device.

[0008] The bone migration device includes a limiting mechanism, which is used to limit the distance of one-time migration of the bone migration device.

[0009] Preferably, the limiting mechanism includes an upper rod, a middle connecting block, and a lower rod. The middle connecting block is respectively connected to the upper rod and the lower rod through a transmission device. The transmission device can drive the middle connecting block to move up and down by rotation. Protrusions are symmetrically arranged on the left and right sides of the upper rod, and the protrusions can limit the rotation range of the transmission device, thereby further limiting the distance of the up and down movement of the middle connecting block.

[0010] Preferably, the transmission device is symmetric front and back, and includes two I-shaped transmission modules and two L-shaped transmission modules. The vertical upper ends of the L-shaped transmission modules are fixed between the protrusions on both sides of the upper rod. The lower ends of the I-shaped transmission modules are fixed on the lower rod, and the horizontal ends of the L-shaped transmission modules are fixed on the middle connecting block.

[0011] Preferably, a Z-shaped guide groove is provided at the center of the upper rod, and the moving rope passes through the Z-shaped guide groove and is connected to the first positioning device and the second positioning device.

[0012] Preferably, the first positioning device and the second positioning device are completely symmetric. The first positioning device includes a positioning rod, a positioning bolt, and a spherical slider. The positioning rod passes through the spherical slider and is fixed by the positioning bolt. A U-shaped card slot is provided on the side of the spherical slider, and the moving rope is fixed in the U-shaped card slot through a moving rope sleeve and a clamping device.

[0013] Preferably, the bone migration device further includes a migration rope and a migration screw. The upper end of the migration rope is arranged on the left and right sides of the lower rod through a migration rope sleeve. A migration hook is provided at the lower end of the migration rope, and the migration hook is adapted to a hanging hole at the upper end of the migration screw.

[0014] Preferably, a connecting rod is further provided on the middle connecting block. The connecting rod passes through a through hole in the middle of the upper rod. A locking device is provided at the top of the upper rod through a fixing bolt. The locking device can move in a circular motion with the fixing bolt as the center and is clamped into a notch on the connecting rod.

[0015] Preferably, the bone migration device further includes a tightening knob, which includes a bolt rod disposed in the knob hole of the upper rod member. The moving rope passes through the opening in the bolt rod, and rotating the tightening knob can control the tightness of the moving rope.

[0016] Preferably, bumps are provided at the lower part of the front side of the upper rod member, at the middle of the front side of the middle connecting block, and at the upper part of the front side of the lower rod member for operating the device.

[0017] Preferably, the tightening knob further includes a cover. A limiting hole is provided at the bottom of the cover, which is adapted to the convex point at the top of the upper rod member, and the convex point is arranged around the periphery of the knob hole.

[0018] Compared with the prior art, the present invention has the following remarkable advantages:

[0019] 1. The present invention limits the rotation range of the transmission device through the protrusions on both sides of the upper rod member, thereby restricting the up and down movement distance of the middle connecting block, so that the distance of each bone migration is not too large, preventing pain caused by improper force during operation.

[0020] 2. Both the connection between the bone migration device of the present invention and the positioning device and the connection of the migration screw use rope segments, which can greatly reduce the weight and volume of the entire device, making the present invention easier to carry and store.

[0021] 3. The present invention connects the positioning device and the bone migration device with a moving rope instead of a common rod member, which can adjust the migration angle and the range of migration and positioning more conveniently and quickly, achieving effects that cannot be achieved by rod members.

[0022] 4. The present invention is simple to operate, has a stable structure, and the components are all easily obtainable and inexpensive parts, which are convenient for manufacturing and selling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the present invention, the following briefly introduces the drawings required for the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structural installation of positioning device one and positioning device two of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the upper rod member of the bone migration device of the present invention;

[0027] Figure 4 Front view and sectional view of the upper rod of the bone migration device of the present invention;

[0028] Figure 5 Schematic structural diagram of the middle connecting block of the bone migration device of the present invention;

[0029] Figure 6 Schematic structural diagram of the lower rod of the bone migration device of the present invention;

[0030] Figure 7 Sectional view of the lower rod of the bone migration device of the present invention;

[0031] Figure 8 Schematic structural diagram of the bone migration transmission module of the present invention;

[0032] Figure 9 Schematic structural diagram of the spherical slider of the present invention;

[0033] Figure 10 Schematic structural diagram of the clamping device of the present invention;

[0034] Figure 11 Schematic structural diagram of the moving rope sleeve of the present invention;

[0035] Figure 12 Schematic structural diagram of the tightening knob of the present invention;

[0036] Figure 13 Schematic structural diagram of the locking device of the present invention;

[0037] Figure 14 Schematic structural diagram of the migration hook of the present invention;

[0038] Figure 15 Schematic structural diagram of the migration screw of the present invention;

[0039] Figure 16 Schematic structural diagram of the migration rope sleeve of the present invention;

[0040] Figure 17 Schematic installation diagram of the structure of the bone migration device of the present invention;

[0041] Figure 18 Schematic structural diagram of the second working state of the present invention.

[0042] The reference numerals include: 1 - positioning rod, 2 - positioning bolt, 3 - spherical slider, 31 - positioning bolt hole, 32 - positioning rod hole, 33 - U-shaped card slot, 4 - clamping device, 5 - moving rope sleeve, 51 - sleeve head, 6 - moving rope, 7 - upper rod, 71 - left through hole of upper rod, 72 - knob hole, 721 - bump, 73 - connection hole, 74 - fixing hole, 75 - right rope hole, 751 - left rope hole, 76 - right through hole of upper rod, 77 - upper convex block, 8 - tightening knob, 81 - bolt hole, 82 - limiting hole, 83 - bolt rod, 84 - tightening knob nut, 9 - locking device, 91 - locking hole, 10 - fixing bolt, 11 - lower rod, 111 - left through hole of lower rod, 112 - lower convex block, 113 - right through hole of lower rod, 114 - left migration rope hole, 115 - chamfer of left migration rope hole, 116 - chamfer of right migration rope hole, 117 - right migration rope hole, 12 - third bolt group, 13 - I-shaped transmission module, 14 - L-shaped transmission module, 15 - second bolt group, 16 - middle connection block, 161 - left through hole of middle connection block, 162 - right through hole of middle connection block, 163 - connecting rod, 164 - lower notch, 165 - upper notch, 166 - middle convex block, 17 - migration rope, 18 - connecting bolt group, 19 - first bolt group, 20 - migration hook, 201 - migration hook hole, 21 - migration screw, 211 - hanging hole, 22 - migration rope sleeve, 221 - migration rope sleeve hole, 222 - chamfer of migration rope sleeve. Detailed implementation mode

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] The present invention discloses a tissue migration device, as Figure 1 shown, including a first positioning device, a second positioning device and a bone migration device. The two ends of the moving rope 6 of the bone migration device are respectively connected to the first positioning device and the second positioning device, and the moving rope 6 passes through the bone migration device. Among them, a positioning rod 1 and a spherical slider 3 are respectively arranged on the first positioning device and the second positioning device. By adjusting the height of the spherical slider 3 on the positioning rod, the height of the bone migration device from the bone surface can be adjusted. A tightening knob 8 is arranged on the bone migration device, and the length of the moving rope 6 is adjusted by adjusting the tightening knob 8, so as to adjust the distance between the positioning rod 1 and the bone migration device on the same side.

[0045] As Figure 1 、 2As shown in FIGS. 9, 10, and 11, since the first positioning device and the second positioning device are completely symmetrical, for the convenience of description, only the first positioning device will be described below. The first positioning device further includes a positioning bolt 2 for fixing the positioning rod 1, a clamping device 4 for fixing the moving rope, and a moving rope sleeve 5. The positioning rod 1 passes through the positioning rod hole 32 on the spherical slider 3, and the positioning bolt 2 is installed in the positioning bolt hole 31 on the spherical slider 3. The position of the positioning rod 1 is fixed by tightening the positioning bolt 2. During installation, one end of the moving rope 6 passing through the bone migration device is inserted into the slightly smaller end hole of the moving rope sleeve 5 and then extends out from the other end hole of the hole. And a part of the moving rope 6 is extended, and the extended part together with the slightly larger part sleeve head 51 of the moving rope sleeve 5 is embedded in the U-shaped card slot 33 of the spherical slider 3, and then the clamping device 4 is installed into the U-shaped card slot 33 to realize the installation of the moving rope 6 on the first positioning device. The installation of the second positioning device is the same by analogy.

[0046] As Figure 17 shown, the bone migration device generally includes a limiting mechanism, a transmission device, a migration rope 17, and a migration hook 20. The transmission device is connected to and drives the limiting mechanism to move. Two migration ropes 17 are respectively suspended on both sides of the limiting mechanism, and the lower ends of the two migration ropes 17 are respectively connected to two migration hooks 20.

[0047] As Figures 3 - 8 shown, the limiting mechanism includes an upper rod 7, a middle connecting block 16, and a lower rod 11 arranged in sequence from top to bottom. A connecting rod 163 is provided at the top of the middle connecting block 16, which is adapted to the connecting hole 73 provided in the middle of the upper rod 7. The connecting rod 163 is inserted into the connecting hole 73 from the bottom of the upper rod 7 and extends out of the top of the upper rod 7. Protrusions are symmetrically arranged on the left and right sides of the upper rod 7. The transmission device is symmetric in the front and back and includes two I-shaped transmission modules 13 and two L-shaped transmission modules 14. The L-shaped transmission module 14 is movably connected to the I-shaped transmission module 13 through a connecting bolt group 18. The vertical upper end of the L-shaped transmission module 14 is fixed between the protrusions on both sides of the upper rod 7 through a first bolt group 19, that is, connecting the left through hole 71 and the right through hole 76 of the upper rod. The lower end of the I-shaped transmission module 13 is fixed to the lower rod 11 through a third bolt group 12 and is connected to the left through hole 111 and the right through hole 113 of the lower rod. The horizontal end of the L-shaped transmission module 14 is fixed to the middle connecting block 16 through a second bolt group 15 and is connected to the left through hole 161 and the right through hole 162 of the middle connecting block. The transmission device can drive the middle connecting block 16 to move up and down, and the protrusions designed on both sides of the upper rod 7 limit the rotation range of the transmission device, thereby controlling the distance of the middle connecting block 16 rising and falling.

[0048] Preferably, an upper convex block 77 is provided at a position centered and lower on the front side of the upper rod 7, a middle convex block 166 is provided at a position centered on the front side of the middle connecting block 16, and a lower convex block 112 is provided at a position centered and upper on the front side of the lower rod 11. Squeezing the upper and middle convex blocks 77, 166 or the middle and lower convex blocks 166, 112 respectively can cooperate with the transmission device to promote the up and down movement of the middle connecting block 16, so as to raise or lower the bone.

[0049] As Figures 6 - 7 shown in FIGS. 14-17, left and right migration rope holes 114, 117 are provided on both sides of the lower rod 11, and left and right migration rope hole chamfers 115, 116 are also provided in the migration rope holes. Two migration rope sleeves 22 are respectively provided in the left and right migration rope holes 114, 117. The migration rope sleeve chamfer 222 is adapted to the left and right migration rope hole chamfers 115, 116. During installation, one end of the migration rope 17 is inserted into the two migration rope sleeve holes 221, and then the migration rope sleeves 22 are fitted and installed with the left and right migration rope holes 114, 117, and the fixation of the migration rope 17 and the lower rod 11 can be completed. The other end of the migration rope 17 passes through the migration hook hole 201 and is fixedly connected to the migration hook 20, and the migration hook 20 is adapted to the hanging hole 211 on the migration screw 21.

[0050] As Figure 1 , shown in FIGS. 3, 4, 12, the bolt rod 83 of the tightening knob 8 is adapted to the knob hole 72 of the upper rod 7, and the bolt hole 81 on the bolt rod 83 communicates with the Figure 4 Z-shaped guide groove inside the upper rod 7 shown. The moving rope 6 passes through the right rope hole 75 into the Z-shaped guide groove, passes through the bolt hole 81 at the knob hole 72, and then passes out from the left rope hole 751, so as to connect the entire bone migration device and the tightening knob 8. A knob nut 84 is provided at the bottom of the bolt rod 83 for fixing the tightening knob 8.

[0051] Preferably, a cover is provided on the tightening knob 8, and the limit hole 82 at the bottom of the cover is adapted to the convex points 721 provided around the knob hole 72 on the upper rod 7, which plays a role in fixing the position of the tightening knob 8.

[0052] As Figure 1 , shown in FIGS. 3, 13, the locking device 9 is arranged at the top of the upper rod 7, including a wrench-shaped main body, a locking hole 91 and a fixing bolt 10. The fixing bolt 10 passes through the locking hole 91 and is threadedly connected to the fixing hole 74 on the upper rod 7 to install the locking device 9 on the upper rod 7, and the migration system locking device 9 can perform circular motion around the fixing bolt 10. As Figure 5 shown, notches 164, 165 are further provided on the connecting rod 163 of the middle connecting block 16, and the bayonets on the wrench-shaped main body of the locking device 9 are adapted to the notches 164, 165 and can be inserted therein to achieve the function of fixing the position of the middle connecting block 16.

[0053] Of course, the number and positions of the notches on the connecting rod 163 can be adjusted as needed. In this embodiment, only two upper and lower notches are provided.

[0054] The usage steps of the present invention are as follows: Loosen the positioning bolt 2. First, find the position to be positioned according to the specific requirements of the operation. Take out the positioning rods 1 of the first positioning device and the second positioning device and drive them into the bone. Then drive two migration screws 21 into the bone that needs to be migrated. Then put the spherical sliders 3 connected with the moving rope 6 on the two positioning rods 1, rotate and tighten the knob 8 to ensure that the moving rope 6 is straightened, and then use the cooperation of the convex points 721 and the limiting holes 82 to fix the tightened knob 8 to keep the moving rope 6 tightened. Adjust the positions of the two spherical sliders 3 on the positioning rods 1. After determining the positions, tighten the positioning bolt 2 to complete the position fixation. Finally, pass the migration hook 20 connected with the migration rope 17 through the migration screw hole 211 to hook the migration screw 21 to ensure the position of the migration rope 17, and finally complete the overall structure as Figure 1 shown.

[0055] During operation, by tightly pinching the upper convex block 77 and the middle convex block 166 with the hand, upward migration of the bone can be achieved; by tightly pinching the lower convex block 112 and the middle convex block 166, downward migration of the bone can be achieved. The upward and downward migration distances of the device are strictly controlled by the transmission device, which can avoid causing great pain due to operation errors during use.

[0056] As Figure 18 shown, the state diagram of the working state of the overall structure of the present invention during upward migration. At this time, the middle convex block 166 is close to the upper convex block 77 and far from the lower convex block 112. The upper end of the L-shaped transmission module 14 is restricted from rotating by the protrusions on both sides of the upper rod 7, controlling the distance of one-time migration.

[0057] Of course, the above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is equally included in the patent protection scope of the present invention.

[0058] In addition, those skilled in the art can understand that although some embodiments described herein include some features included in other embodiments rather than other features, the combination of features of different embodiments means that it is within the scope of the present invention and forms different embodiments. For example, in the following claims, any one of the claimed embodiments can be used in any combination.

[0059] Although the present invention has been described in terms of a limited number of embodiments, those skilled in the art, having the benefit of the foregoing description, will appreciate that other embodiments can be contemplated within the scope of the invention as thus described. In addition, it should be noted that the language used in this specification has been principally selected for readability and instructional purposes and not to limit or circumscribe the inventive subject matter. Accordingly, many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the appended claims. For the scope of the present invention, the disclosure herein is illustrative, and not restrictive, the scope of the invention being defined by the appended claims.

Claims

1. An organization migration device, characterized in that: Comprising a first positioning device, a second positioning device and a bone migration device, the bone migration device driving the bone to migrate up and down; The bone migration device is arranged between the first positioning device and the second positioning device. The two ends of a moving rope of the bone migration device are respectively connected to the first positioning device and the second positioning device, and the moving rope penetrates through the bone migration device; The bone migration device includes a limiting mechanism, a transmission device, a migration rope and a migration screw; The limiting mechanism is used to limit the distance of one-time migration of the bone migration device, and includes an upper rod, a middle connecting block and a lower rod. The middle connecting block is respectively connected to the upper rod and the lower rod through the transmission device, and the transmission device drives the middle connecting block to move up and down by rotation; protrusions are symmetrically arranged on the left and right sides of the upper rod, and the protrusions limit the rotation range of the transmission device, thereby further limiting the distance of the up and down movement of the middle connecting block; The transmission device is symmetric front and back, and includes two I-shaped transmission modules and two L-shaped transmission modules. The vertical upper ends of the L-shaped transmission modules are fixed between the protrusions on both sides of the upper rod, the lower ends of the I-shaped transmission modules are fixed on the lower rod, the horizontal ends of the L-shaped transmission modules are fixed on the middle connecting block, and a connecting rod is further arranged on the middle connecting block, and the connecting rod passes through the through hole in the middle of the upper rod; The upper end of the migration rope is arranged on the left and right sides of the lower rod through a migration rope sleeve, and a migration hook is arranged at the lower end of the migration rope, and the migration hook is adapted to the hanging hole at the upper end of the migration screw.

2. The tissue migration device according to claim 1, characterized in that: A Z-shaped guide groove is arranged at the center of the upper rod, and the moving rope passes through the Z-shaped guide groove and is connected to the first positioning device and the second positioning device.

3. The tissue migration device according to claim 2, characterized in that: The first positioning device and the second positioning device are completely symmetrical. The first positioning device includes a positioning rod, a positioning bolt and a spherical slider. The positioning rod passes through the spherical slider and is fixed by the positioning bolt. A U-shaped card slot is arranged on the side of the spherical slider, and the moving rope is fixed in the U-shaped card slot through a moving rope sleeve and a clamping device.

4. The tissue migration device according to claim 3, wherein: A locking device is arranged at the top of the upper rod through a bolt. The locking device makes a circular motion with the bolt as the center and is stuck into the notch on the connecting rod.

5. The tissue migration device according to claim 4, wherein: The bone migration device further includes a tightening knob. The tightening knob includes a bolt rod. The bolt rod is arranged in a knob hole of the upper rod. The moving rope passes through the opening on the bolt rod, and the tightness of the moving rope is controlled by rotating the tightening knob.

6. The tissue migration device according to claim 5, wherein: Convex blocks are arranged at the lower part of the front side of the upper rod, in the middle of the front side of the middle connecting block and at the upper part of the front side of the lower rod for operating the device.

7. An organization migration device according to claim 6, characterized in that: The tightening knob further includes a rotating cover. A limiting hole is arranged at the bottom of the rotating cover, and the limiting hole is adapted to the convex point at the top of the upper rod. The convex points are arranged around the periphery of the knob hole.

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