CN112890909A

CN112890909A - Bone cartilage and periosteum bone extractor

Info

Publication number: CN112890909A
Application number: CN202110042763.2A
Authority: CN
Inventors: 曹乐; 苗旭东; 吴永平
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-06-04
Anticipated expiration: 2041-01-13
Also published as: CN112890909B

Abstract

The invention discloses a bone cartilage and periosteum bone extractor, which comprises a first shell, wherein the first shell is of a cylindrical structure with an opening at the lower end, a first bone extracting end is arranged at the lower end of the first shell, a bone extracting assembly is arranged in the first shell, and the bone extracting assembly comprises a first sliding barrel, a second sliding barrel, a sliding rod, a Kirschner wire and an electric push rod. Has the advantages that: can be through the removal of electric putter control ejector pad, and not only easy operation, and the removal of ejector pad is more stable moreover, and the ejector pad can not take place to rotate, be favorable to going on smoothly of operation, and can get the bone end with the accurate release second of periosteum bone replacement piece, and fix the pathological change cartilage in the bone end through ke shi needle to first getting, need not the horizontal hunting and get the bone ware, only need the rotation to get the bone ware and can make the first pathological change cartilage and the fracture of cartilage main part in getting the bone end, and can be convenient for install fixedly and dismantle the ke shi needle.

Description

Bone cartilage and periosteum bone extractor

Technical Field

The invention relates to the technical field of bone taking tools, in particular to a bone cartilage and periosteum bone taking device.

Background

In bone replacement surgery, it is often necessary to remove the diseased bone, replace it with a piece of normal bone from another part of the body and fill the pit in the diseased part, for example, a small piece of periosteal bone on the ilium to replace the diseased bone cartilage on the talus.

The existing bone taking tool comprises a cylinder body, wherein one end of the cylinder body is provided with an inner cavity, blades are uniformly distributed on the edge of the cylinder body to form a bone taking end, and the other end of the cylinder body is provided with a handle. During the use, insert the bone end of getting of barrel to talus bone cartilage lesion department, then make the barrel rotate around its self axis and rock, make the bone bolt that is located barrel and gets bone end and outside bone main part fracture each other, then extract with the pathological change bone bolt who has broken off and get the bone end. The bone taking mode of normal periosteum bone on the ilium is the same as the bone taking mode of diseased bone cartilage on the talus. However, the bone taking tool in the prior art adopts manual operation to send the taken bone into the groove of the lesion part, which not only has poor stability, but also has complicated operation and is inconvenient for smooth operation.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention aims to provide a bone cartilage extractor and a periosteum bone extractor so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a bone ware is got to osteochondral bone and periosteum bone gets bone ware includes first casing, first casing is lower extreme open-ended tubular structure, and first casing lower extreme is provided with the first end of getting bone, be equipped with in the first casing and get bone subassembly, it includes first slide cartridge, second slide cartridge, slide bar, ke shi needle and electric putter to get bone subassembly, first casing upper end middle part is fixed to inlay and is equipped with first slide cartridge, slide bar in the first slide cartridge, slide bar one side outer wall has seted up spacing spout, first slide cartridge one side inner wall is fixed and is equipped with the arch that spacing spout phase-match, the slide bar lower extreme is connected with the mounting panel through coupling assembling, coupling assembling includes the sleeve, the sleeve is fixed on the mounting panel, the sleeve cover is established slide bar lower extreme outer wall, slide bar lower extreme middle part has seted up flutedly, slide bar lower extreme both sides outer wall is fixed and is equipped with the, the section of the clamping block is of a triangular structure, the inner wall of the bottom end of the sleeve is provided with a clamping groove matched with the clamping block, a push block is fixedly arranged below the mounting plate, a limiting ring is fixedly sleeved on the outer wall of the sliding rod close to the upper end of the sliding rod, a first handle and a second handle are respectively fixedly arranged on the outer walls of the two sides of the upper end of the first shell, a first connecting rod is fixedly arranged on the end of the first handle close to the first shell, a second connecting rod is fixedly arranged on the end of the second handle close to the first shell, a fixing plate is fixedly arranged between the upper ends of the first connecting rod and the second connecting rod, an electric push rod is fixedly embedded in the middle of the fixing plate, the lower end of a piston rod of the electric push rod is fixedly connected with one end of the sliding rod far away from the mounting plate, a controller is fixedly arranged, a charging interface is fixedly arranged on the lithium battery, an extension button is fixedly arranged at the lower part of the first handle close to one end of the first shell, a recovery button is fixedly arranged at the lower part of one end of the second grip close to the first shell, the extension button, the recovery button and the electric push rod are all electrically connected with the controller, the charging interface is electrically connected with the lithium battery, second sliding cylinders are fixedly embedded on two sides of the upper end of the first shell, Kirschner wires are arranged in the second sliding cylinders in a sliding manner, and the upper ends of the kirschner wires are all fixedly provided with limiting plates, the kirschner wires penetrate through the mounting plate and the push block, the Kirschner wire is connected with the mounting plate and the push block in a sliding way, the limiting plates are all fixedly provided with lifting rings, and the outer wall of one side of the upper end of the second sliding cylinder is fixedly embedded with a threaded cylinder, and fastening bolts are connected in the threaded cylinder in a threaded manner.

Further, the ejector pad is cylindrical structure, just the ejector pad outer wall with the laminating of first shells inner wall.

Further, the push block is made of a silica gel layer material.

Furthermore, a second scale mark is printed on the outer wall of the lower end of the first shell.

Furthermore, the distance between the limiting ring and the first sliding barrel is the same as the distance between the pushing block and the lower end of the first bone taking end.

Furthermore, the outer walls of the first handle and the second handle are fixedly sleeved with anti-skid rubber sleeves.

Furthermore, the lower end of a piston rod of the electric push rod is fixedly connected with one end, far away from the mounting plate, of the slide rod through a coupler.

In order to achieve the above object, the present invention further provides a periosteum bone extractor used in cooperation with the osteochondral bone extractor of claim 2, which is characterized in that the periosteum bone extractor comprises a second casing corresponding to the first casing, the second casing is in a cylindrical structure with an open lower end, a second bone extracting end is arranged at the lower end of the second casing, a bone extracting component is arranged in the second casing, and the bone extracting component in the second casing has the same structure as the bone extracting component in the first casing.

Furthermore, a first scale mark is printed on the outer wall of the lower end of the second shell.

Further, the first bone taking end and the second bone taking end have the same size.

Compared with the prior art, the invention has the following beneficial effects: can be through the removal of electric putter control ejector pad, and not only easy operation, and the removal of ejector pad is more stable moreover, and the ejector pad can not take place to rotate, be favorable to going on smoothly of operation, and can get the bone end with the accurate release second of periosteum bone replacement piece, and fix the pathological change cartilage in the bone end through ke shi needle to first getting, need not the horizontal hunting and get the bone ware, only need the rotation to get the bone ware and can make the first pathological change cartilage and the fracture of cartilage main part in getting the bone end, and can be convenient for install fixedly and dismantle the ke shi needle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a bone cartilage extractor according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a bone cartilage extractor according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a sectional view of the first slide cartridge and the slide rod of the osteochondral bone harvester according to the embodiment of the invention;

FIG. 5 is a cross-sectional view of a connecting assembly in an osteochondral bone harvester according to embodiments of the invention;

FIG. 6 is a schematic structural diagram of a periosteal bone extractor according to an embodiment of the invention;

FIG. 7 is one of the schematic views of the process of removing diseased cartilage through a osteochondral extractor;

FIG. 8 is a second schematic view of the process of removing diseased cartilage through the osteochondral extractor;

FIG. 9 is a schematic view of a removal of a normal periosteal bone replacement block through a periosteal bone extractor;

FIG. 10 is a schematic view showing the engagement of a normal periosteal bone replacement block with a damaged osteochondral pit.

Reference numerals:

1. a first housing; 2. a first bone harvesting end; 3. a first slide drum; 4. a second slide drum; 5. a slide bar; 6. a Kirschner wire; 7. an electric push rod; 8. a limiting chute; 9. a protrusion; 10. a connecting assembly; 11. mounting a plate; 12. a sleeve; 13. a groove; 14. a clamping block; 15. a card slot; 16. a push block; 17. a limiting ring; 18. a first grip; 19. a second grip; 20. a first connecting rod; 21. a second connecting rod; 22. a fixing plate; 23. a piston rod; 24. a controller; 25. a lithium battery; 26. a charging interface; 27. an extension button; 28. a recovery button; 29. a limiting plate; 30. lifting a ring; 31. a threaded barrel; 32. fastening a bolt; 33. a first scale mark; 34. an anti-slip rubber sleeve; 35. a coupling; 36. a second housing; 37. a second bone taking end; 38. a second scale mark; 39. a osteochondral body; 40. diseased osteochondral; 41. osteochondral pits; 42. a periosteal bone body; 43. periosteal bone replacement blocks; 44. periosteal bone pits.

Detailed Description

The invention is further described with reference to the following drawings and detailed description:

the first embodiment is as follows:

referring to fig. 1 to 10, a osteochondral bone extractor and a periosteal bone extractor according to an embodiment of the present invention includes a first housing 1, the first housing 1 is a cylindrical structure with an open lower end, a first bone extracting end 2 is disposed at the lower end of the first housing 1, a bone extracting assembly is disposed in the first housing 1, the bone extracting assembly includes a first sliding barrel 3, a second sliding barrel 4, a sliding rod 5, a kirschner wire 6 and an electric push rod 7, the first sliding barrel 3 is fixedly embedded in the middle of the upper end of the first housing 1, the sliding rod 5 is slidably disposed in the first sliding barrel 3, a limit sliding chute 8 is disposed on an outer wall of one side of the sliding rod 5, a protrusion 9 matching with the limit sliding chute 8 is fixedly disposed on an inner wall of one side of the first sliding barrel 3, the lower end of the sliding rod 5 is connected to a mounting plate 11 through a connecting assembly 10, the connecting assembly 10 includes a sleeve 12, the sleeve 12 is fixed to the mounting, the sleeve 12 is sleeved on the outer wall of the lower end of the slide rod 5, the middle part of the lower end of the slide rod 5 is provided with a groove 13, the outer walls of two sides of the lower end of the slide rod 5 are fixedly provided with clamping blocks 14, the section of each clamping block 14 is arranged to be triangular, the inner wall of the bottom end of the sleeve 12 is provided with a clamping groove 15 matched with the clamping block 14, the lower part of the mounting plate 11 is fixedly provided with a push block 16, the outer wall of the slide rod 5 close to the upper end is fixedly sleeved with a limiting ring 17, the outer walls of two sides of the upper end of the first shell 1 are respectively and fixedly provided with a first handle 18 and a second handle 19, the first handle 18 close to one end of the first shell 1 is fixedly provided with a first connecting rod 20, the second handle 19 close to one end of the first shell 1 is fixedly provided with a second connecting rod 21, a fixing plate 22, the lower end of a piston rod 23 of the electric push rod 7 is fixedly connected with one end of the slide rod 5 far away from the mounting plate 11, a controller 24 is fixedly arranged on one side of the fixing plate 22, a lithium battery 25 is fixedly arranged on one side of the fixing plate 22 far away from the controller 24, a charging interface 26 is fixedly arranged on the lithium battery 25, an extension button 27 is fixedly arranged under one end of the first handle 18 close to the first shell 1, a recovery button 28 is fixedly arranged under one end of the second handle 19 close to the first shell 1, the extension button 27, the recovery button 28 and the electric push rod 7 are electrically connected with the controller 24, the charging interface 26 is electrically connected with the lithium battery 25, the second sliding barrel 4 is fixedly embedded on both sides of the upper end of the first shell 1, a Kirschner wire 6 is slidably arranged in the second sliding barrel 4, and a limiting plate 29 is fixedly arranged on the upper end of the Kirschner wire 6, the kirschner wire 6 runs through the mounting panel 11 with the ejector pad 16, just the kirschner wire 6 with the mounting panel 11 with ejector pad 16 sliding connection, all fixed being equipped with the bail 30 on the limiting plate 29, the outer wall of one side of the upper end of the second slide cartridge 4 is all fixed to be inlayed and is equipped with a screw thread section of thick bamboo 31, equal threaded connection has fastening bolt 32 in the screw thread section of thick bamboo 31.

Example two:

referring to fig. 2, for the push block 16, the push block 16 is a cylindrical structure, and an outer wall of the push block 16 is attached to an inner wall of the first housing 1; for the push block 16, the push block 16 is made of a silicone layer material.

Example three:

referring to fig. 1-2, for the first housing 1, a first scale mark 33 is printed on an outer wall of a lower end of the first housing 1; for the spacing ring 17, the spacing between the spacing ring 17 and the first sliding barrel 3 is the same as the spacing between the pushing block 16 and the lower end of the first bone taking end 2.

With the above-described aspect of the present invention, the depth of insertion can be read when the first housing 1 is inserted into the osteochondral body 39 through the first scale lines 33, and when the stop collar 17 contacts the upper end of the first slide cylinder 3, the lower end of the push block 16 just reaches the lowest end of the first osteotomy end 2.

Example four:

referring to fig. 1-2, for the first handle 18 and the second handle 19, the outer walls of the first handle 18 and the second handle 19 are both fixedly sleeved with an anti-slip rubber sleeve 34; for the electric push rod 7, the lower end of the piston rod 23 of the electric push rod 7 is fixedly connected with one end of the slide rod 5 far away from the mounting plate 11 through a coupler 35.

Through the scheme of the invention, the antiskid rubber sleeve 34 can increase the antiskid performance of the outer walls of the first grip 18 and the second grip 19, and the coupling 35 can fixedly connect the piston rod 23 of the electric push rod 7 and the sliding rod 5 together.

The utility model provides a with periosteum bone that bone ware cooperation was used is got to osteochondral, its structure is the same basically with above-mentioned osteochondral gets bone ware, include with the second casing 36 that first casing 1 corresponds, second casing 36 is lower extreme open-ended tubular structure, just second casing 36 lower extreme is provided with the second and gets bone end 37, be equipped with in the second casing 36 and get the bone subassembly, just get the bone subassembly in the second casing 36 with the structure of getting the bone subassembly in the first casing 1 is the same.

In a further embodiment, the outer wall of the lower end of the second housing 36 is printed with a second graduation mark 38.

The first bone-taking end 2 and the second bone-taking end 37 have the same size.

Through the scheme of the invention, the movement of the push block 16 can be controlled through the electric push rod 7, the operation is simple, the movement of the push block 16 is more stable, the push block 16 cannot rotate, the smooth operation is facilitated, the periosteum bone replacement block 43 can be accurately pushed out of the second bone taking end 37, the diseased bone cartilage 40 in the first bone taking end 2 is fixed through the Kirschner wire 6, the bone taking device does not need to swing left and right, the diseased bone cartilage 40 in the first bone taking end 2 can be broken with the bone cartilage main body 39 only by rotating the bone taking device, and the Kirschner wire 6 can be conveniently installed, fixed and detached.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, as shown in fig. 7, the first shell 1 is inserted into the osteochondral main body 39, the insertion depth is controlled according to the first scale mark 33, after the insertion depth reaches a specified depth, the first handle 18 and the second handle 19 are held to rotate the first shell 1, and the diseased osteochondral 40 in the first bone taking end 2 and the osteochondral main body 39 can be fractured by matching the fixing effect of the kirschner wire 6 on the diseased osteochondral 40, so that the diseased osteochondral 40 and the osteochondral main body 39 can be fractured without swinging the first shell 1 left and right; as shown in fig. 8, the first shell 1 is withdrawn from the osteochondral body 39, leaving a osteochondral pit 41 in the osteochondral body 39; as shown in fig. 9, a periosteal bone replacement block 43 having the same size as the diseased osteochondral 40 is removed from the periosteal bone body 42 in the same manner as the above operation, and a periosteal bone pit 44 is left in the periosteal bone body 42; the lower end of the second shell 36 with the periosteum replacement block 43 is placed above the osteochondral pit 41, then the extension button 27 is pressed, the controller 24 can automatically control the electric push rod 7 to extend, the mounting plate 11 and the push block 16 are pushed downwards through the slide rod 5, so that the periosteum replacement block 43 can be inserted into the osteochondral pit 41, as shown in figure 10, so that the push block 16 can be controlled to move through the electric push rod 7, the operation is simple, the push block 16 can move more stably, the push block 16 cannot rotate, the smooth operation is facilitated, the periosteum replacement block 43 can be accurately pushed out of the second bone taking end 37, the diseased osteochondral cartilage 40 in the first bone taking end 2 can be fixed through the Kirschner wire 6, the bone taking device does not need to swing left and right, the diseased osteochondral cartilage 40 in the first bone taking end 2 can be broken with the osteochondral main body 39 only by rotating the bone taking device, and the kirschner wire 6 can be conveniently installed, fixed and detached.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The bone cartilage extractor is characterized by comprising a first shell (1), wherein the first shell (1) is of a cylindrical structure with an opening at the lower end.

2. The bone extractor for the osteochondral bone and the periosteal bone according to claim 1, wherein the first bone extracting end (2) is arranged at the lower end of the first shell (1), the bone extracting assembly is arranged in the first shell (1) and comprises a first sliding barrel (3), a second sliding barrel (4), a sliding rod (5), a Kirschner wire (6) and an electric push rod (7), the first sliding barrel (3) is fixedly embedded in the middle of the upper end of the first shell (1), the sliding rod (5) is arranged in the first sliding barrel (3) in a sliding mode, a limiting sliding groove (8) is formed in the outer wall of one side of the sliding rod (5), a bulge (9) matched with the limiting sliding groove (8) is fixedly arranged on the inner wall of one side of the first sliding barrel (3), a mounting plate (11) is connected to the lower end of the sliding rod (5) through a connecting assembly (10), and the connecting assembly (10) comprises a sleeve (12), sleeve (12) are fixed on mounting panel (11), sleeve (12) cover is established slide bar (5) lower extreme outer wall, slide bar (5) lower extreme middle part is seted up fluted (13), slide bar (5) lower extreme both sides outer wall is fixed and is equipped with fixture block (14), just the cross-section setting of fixture block (14) is the triangle-shaped structure, sleeve (12) bottom inner wall seted up with fixture block (14) assorted draw-in groove (15), mounting panel (11) lower fixed ejector pad (16) that is equipped with, slide bar (5) are close to the fixed cover of upper end outer wall and are equipped with spacing ring (17), first casing (1) upper end both sides outer wall is fixed respectively and is equipped with first handle (18) and second handle (19), first handle (18) are close to one of first casing (1) is served and is fixed and is equipped with first connecting rod (20), second handle (19) are close to one of first casing (1) is served and is fixed and is equipped with second connecting rod (21) The utility model discloses a fixed plate (22) is equipped with between first connecting rod (20) and second connecting rod (21) upper end, fixed plate (22) middle part is fixed to be inlayed and is equipped with electric putter (7), the piston rod (23) lower extreme of electric putter (7) with slide bar (5) are kept away from the one end fixed connection of mounting panel (11), fixed plate (22) one side is gone up and is fixed and is equipped with controller (24), fixed plate (22) are kept away from fixed lithium cell (25) that are equipped with on controller (24) one side, the fixed interface (26) that charge that is equipped with on lithium cell (25), first handle (18) are close to fixed extension button (27) that is equipped with under first casing (1) one end, second handle (19) are close to fixed recovery button (28) that is equipped with under first casing (1) one end, extension button (27), The recycling button (28), the electric push rod (7) and the controller (24) are electrically connected, the charging interface (26) and the lithium battery (25) are electrically connected, a second sliding barrel (4) is fixedly embedded in two sides of the upper end of the first shell (1), a Kirschner wire (6) is slidably arranged in the second sliding barrel (4), a limiting plate (29) is fixedly arranged at the upper end of the Kirschner wire (6), the Kirschner wire (6) penetrates through the mounting plate (11) and the push block (16), the Kirschner wire (6) is slidably connected with the mounting plate (11) and the push block (16), a lifting ring (30) is fixedly arranged on the limiting plate (29), a threaded barrel (31) is fixedly embedded in the outer wall of one side of the upper end of the second sliding barrel (4), and a fastening bolt (32) is threadedly connected in the threaded barrel (31), the push block (16) is of a cylindrical structure, and the outer wall of the push block (16) is attached to the inner wall of the first shell (1).

3. The osteochondral and periosteal bone extractor according to claim 2, wherein the push block (16) is made of a silicone material.

4. The osteochondral and periosteal bone extractor according to claim 2, wherein the first housing (1) has a first scale line (33) printed on the outer wall of the lower end thereof.

5. The osteochondral and periosteal bone extractor according to claim 2, wherein the spacing between the limiting ring (17) and the first sliding cylinder (3) is the same as the spacing between the pushing block (16) and the lower end of the first bone extracting end (2).

6. The osteochondral and periosteal bone extractor as claimed in claim 2, wherein the outer walls of the first handle (18) and the second handle (19) are fixedly sleeved with anti-slip rubber sleeves (34).

7. The osteochondral and periosteal bone extractor as claimed in claim 2, wherein the lower end of the piston rod (23) of the electric push rod (7) is fixedly connected with one end of the slide rod (5) far away from the mounting plate (11) through a coupling (35).

8. The periosteum bone extractor used in cooperation with the osteochondral bone extractor of claim 2, comprising a second shell (36) corresponding to the first shell (1), wherein the second shell (36) is of a cylindrical structure with an open lower end, a second bone extracting end (37) is arranged at the lower end of the second shell (36), a bone extracting component is arranged in the second shell (36), and the bone extracting component in the second shell (36) has the same structure as the bone extracting component in the first shell (1).

9. The osteochondral and periosteal bone extractor as claimed in claim 8, wherein the second housing (36) has a second scale line (38) printed on the outer wall of the lower end thereof.

10. A osteochondral and periosteal bone harvester according to claim 8, wherein the first harvesting end (2) and the second harvesting end (37) are the same size.