CN115300039A - Micro-fracture device - Google Patents
Micro-fracture device Download PDFInfo
- Publication number
- CN115300039A CN115300039A CN202211001141.6A CN202211001141A CN115300039A CN 115300039 A CN115300039 A CN 115300039A CN 202211001141 A CN202211001141 A CN 202211001141A CN 115300039 A CN115300039 A CN 115300039A
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- CN
- China
- Prior art keywords
- shaft
- connecting shaft
- handle
- lock sleeve
- microfracture
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
Abstract
The invention discloses a micro-fracture device, wherein an extension shaft coaxial with a handle is fixed at one end of the handle, and a micro-fracture head is bent at one end of the extension shaft, which is far away from the handle; the one end of beating the subassembly is connected on extending the axle, and the other end extends to the direction of keeping away from extending the axle and being close to the handle, and the axis of beating the subassembly and the axis of extending the axle are formed with contained angle alpha, beats the subassembly simultaneously and divides the centre at the relative both sides of extension axle with the microfracture head. The invention discloses a micro-fracture device, which can reduce the probability of enlarging and inclining a punched hole, thereby improving the operation quality.
Description
Technical Field
The invention relates to the technical field of medical tools, in particular to a micro-fracture device.
Background
Currently, patients with bone injuries require surgery. During the operation: when the damaged cartilage surface is operated, the cartilage calcified layer needs to be removed to facilitate the addition of more regenerated tissues, and the subchondral bone is drilled with a conventional microfractor in a multi-point uniform vertical manner to destroy the damaged bone and form a rough surface, so that hematoma is easily adhered to fill the defect, namely: so that the potential stem cells infiltrated from the bone can be differentiated into fibrochondrocytes, and the cartilage defect can be repaired.
The existing micro-fracture device only has an extension shaft which is coaxial with a handle fixed on the handle, and one end of the extension shaft, which is far away from the handle, is bent into a micro-fracture head, and the bending angle of the micro-fracture head is about 0 degree, 25 degrees, 40 degrees, 60 degrees and 80 degrees at present. In particular use, the microfracture head acts on the subchondral bone and the tail end of the handle (the end of the handle remote from the extension shaft) is struck in the axial direction of the handle to enable the drilling of holes in the subchondral bone, however, such a conventional microfracture device is found in clinical use: when the bending angle of the micro fracture head is larger than 30 degrees, the micro fracture device integrally moves forwards in the using process, so that the size and the inclination of the punched hole are increased, and the adverse effect on the operation effect is caused.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a microfracture device that reduces the probability of the perforation becoming larger and inclined.
Disclosure of Invention
In view of the above, the present invention provides a micro-fracture device, which aims to solve at least part of the above technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a microfracture apparatus, comprising:
the bone fracture plate comprises a handle, wherein an extension shaft coaxial with the handle is fixed at one end of the handle, and a micro bone fracture head is bent at one end of the extension shaft, which is far away from the handle;
the knocking component is connected to one end of the knocking component on the extension shaft, the other end of the knocking component is far away from the extension shaft and close to the handle, an included angle alpha is formed between the axis of the knocking component and the axis of the extension shaft, and meanwhile the knocking component and the microfracture head are respectively arranged on two opposite sides of the extension shaft.
Preferably, the degree of the included angle alpha is 45 degrees.
Preferably, the rapping assembly comprises: connecting shaft, lock sleeve and knock bar;
one end of the connecting shaft is connected to the extending shaft, the other end of the connecting shaft extends towards the direction far away from the extending shaft and close to the handle, the axis of the connecting shaft and the axis of the extending shaft form the included angle alpha, and meanwhile, the connecting shaft and the microfracture head are respectively arranged on two opposite sides of the extending shaft;
one end of the connecting shaft, which is far away from the extending shaft, is detachably connected with one end of the knocking rod through the lock sleeve, and meanwhile, the connecting shaft, the lock sleeve and the axis of the knocking rod are collinear.
Preferably, a rod cap with the diameter larger than that of the knocking rod is fixed at one end of the knocking rod, which is far away from the lock sleeve.
Preferably, the inner wall of the lock sleeve is provided with threads, the connecting shaft and the knocking rod are close to the outer wall of the lock sleeve and are provided with thread sections, and the lock sleeve is in threaded connection with the thread sections of the connecting shaft and the thread sections of the knocking rod respectively.
Preferably, the side wall of the extension shaft opposite to the micro-fracture head is provided with an inclined hole, the inclined direction of the inclined hole is the same as that of the connecting shaft, and one end of the connecting shaft, which is far away from the sleeve, is in mortise-tenon joint with the inclined hole.
Preferably, the extension shaft is welded to the connection shaft.
Preferably, the extension shaft is connected with the connection shaft by a pin.
According to the technical scheme, compared with the prior art, the invention discloses the micro-fracture device which can achieve the following technical effects:
this application is owing to strike the axis of subassembly and the axis of extending the axle and be formed with contained angle alpha, strike the subassembly simultaneously and the split of microfracture head occupies in the both sides that extend the axle relatively, make the axial of striking power along striking the subassembly epaxial to extending, and finally transmit to microfracture overhead in-process, the stress angle that makes the microfracture head of this application is different with microfracture head stress angle in the traditional microfracture ware, consequently even the angle of buckling at microfracture head is greater than under the condition of 30 degrees, the whole difficult antedisplacement that is difficult for of this application, thereby be difficult for making the hole site that the microfracture head of this application punched antedisplacement, consequently be difficult for making the hole grow that the microfracture head of this application was beaten, the slope, consequently, can improve the quality of operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a microfracture device of the present invention;
FIG. 2 is an exploded view of a microfracture apparatus of the present invention.
Wherein, 1-a handle; 2-an extension axis; 3-micro fracture; 4-a rapping assembly; 41-a connecting shaft; 42-a lock sleeve; 43-knock bar; 430-a wand cap; 20-inclined hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a microfractor, which comprises:
an extension shaft 2 coaxial with the handle 1 is fixed at one end of the handle 1, and a microfracture head 3 is bent at one end of the extension shaft 2 far away from the handle 1;
When the micro-fracture head is used, a doctor holds the handle 1 with one hand, and uses a special tool (the special tool is a structure well known to the skilled person) to knock the knocking component 4 with the other hand, the knocking component 4 is far away from the extension shaft 2 and close to one end of the handle 1, then the transmission path of the knocking force is along the axial direction of the knocking component 4 to the extension shaft 2 and finally transmitted to the micro-fracture head 3, so that the effect of punching holes on subchondral bones can be realized through the micro-fracture head 3, and in the process that the axial direction of the knocking component 4 forms an included angle alpha with the axial direction of the extension shaft 2, and the knocking component 4 and the micro-fracture head 3 are respectively arranged at two opposite sides of the extension shaft 2, the knocking force is transmitted to the extension shaft 2 along the axial direction of the knocking component 4 and finally transmitted to the micro-fracture head 3, so that the stress angle of the micro-fracture head 3 is different from that of the micro-fracture head in the traditional micro-fracture device, therefore, even if the bending angle of the micro-fracture head is more than 30 degrees, the whole micro-fracture head is not easy to move forward, and the quality of the micro-fracture head before the micro-fracture head can be improved.
The principle of drilling a hole on the subchondral bone is as described above, the handle 1 is used for sequentially moving the flexible tube subchondral bone to other positions to be drilled, and according to the principle, a plurality of holes can be drilled on the subchondral bone.
In order to further optimize the technical scheme, the degree of the included angle alpha is 45 degrees.
By adopting the technical scheme, the 45-degree knocking angle is set, because the space of a joint cavity is limited, the micro fracture can be better used only when the angle exists, the purpose of an operation is achieved, the most common specification of the micro fracture is 15-60 degrees, the side knocking is not needed below 30 degrees, the 45-degree side knocking angle is obtained in a compromise mode, and through practice, the 45-degree angle can meet the requirements of all specifications.
In order to further optimize the above solution, the knocking assembly 4 comprises: the connecting shaft 41, the lock sleeve 42 and the knock bar 43;
wherein, one end of the connecting shaft 41 is connected to the extending shaft 2, the other end extends to the direction far away from the extending shaft 2 and close to the handle 1, the axis of the connecting shaft 41 and the axis of the extending shaft 2 form an included angle alpha, and meanwhile, the connecting shaft 41 and the microfracture head 3 are respectively arranged at two opposite sides of the extending shaft 2;
one end of the connecting shaft 41 far away from the extension shaft 2 is detachably connected with one end of the knock bar 43 through the lock sleeve 42, and the axes of the connecting shaft 41, the lock sleeve 42 and the knock bar 43 are collinear.
This application adopts above-mentioned technical scheme, and in the use, specialized tool strikes the one end that the rapping bar 43 is kept away from lock sleeve 42 along the axial of rapping bar 43, then strikes power and transmits to extending on the axle 2 along rapping bar 43, lock sleeve 42 and connecting axle 41 in proper order to on finally transmitting to little bone fracture 3 through extending axle 2, in order to realize the effect of punching.
This application is because the one end that extension axle 2 was kept away from to connecting axle 41 passes through lock sleeve 42 and can dismantle the connection with the one end of rapping bar 43, then when needs pack this application, wash and disinfect, then will rap bar 43 and dismantle, then be convenient for corresponding operation.
In addition, according to the present invention, the axes of the connecting shaft 41, the lock sleeve 42 and the knock bar 43 are collinear, so that the path of the knocking force sequentially passing through the knock bar 43, the lock sleeve 42 and the connecting shaft 41 can be a straight line, and the transmission efficiency of the knocking force can be improved.
In order to further optimize the above solution, the knocking assembly 4 comprises: the connecting shaft 41, the lock sleeve 42 and the knock bar 43;
wherein, one end of the connecting shaft 41 is connected to the extending shaft 2, the other end extends to the direction far away from the extending shaft 2 and close to the handle 1, the axis of the connecting shaft 41 and the axis of the extending shaft 2 form an included angle alpha, and meanwhile, the connecting shaft 41 and the microfracture head 3 are respectively arranged at two opposite sides of the extending shaft 2;
one end of the connecting shaft 41 far away from the extension shaft 2 is integrally connected with one end of the knock bar 43 through the lock sleeve 42, and the axes of the connecting shaft 41, the lock sleeve 42 and the knock bar 43 are collinear.
This application adopts above-mentioned technical scheme, and in the use, specialized tool strikes the one end that the rapping bar 43 is kept away from lock sleeve 42 along the axial of rapping bar 43, then strikes power and transmits to extending on the axle 2 along rapping bar 43, lock sleeve 42 and connecting axle 41 in proper order to on finally transmitting to little bone fracture 3 through extending axle 2, in order to realize the effect of punching.
In the application, one end of the connecting shaft 41, which is far away from the extension shaft 2, is integrally connected with one end of the knock bar 43 through the lock sleeve 42, so that the connection of the connecting shaft 41, the lock sleeve 42 and the knock bar 43 is firmer and more stable.
In addition, according to the present invention, the axes of the connecting shaft 41, the lock sleeve 42 and the striking rod 43 are collinear, so that the path of the striking force sequentially passing through the striking rod 43, the lock sleeve 42 and the connecting shaft 41 is a straight line, and the transmission efficiency of the striking force can be improved.
In order to further optimize the above technical solution, the end of the knock bar 43 away from the lock sleeve 42 is fixed with a bar cap 430 with a diameter larger than that of the knock bar 43.
By adopting the technical scheme, the stress area of one end, far away from the lock sleeve 42, of the knocking rod 43 is increased, so that a professional tool can knock on the rod cap 430 conveniently, the probability of knocking and falling to the air is reduced, and the operation efficiency is improved.
In order to further optimize the technical scheme, the inner wall of the lock sleeve 42 is provided with threads, the outer walls of the connecting shaft 41 and the knock rod 43 close to the lock sleeve 42 are provided with thread sections, and the lock sleeve 42 is in threaded connection with the thread section of the connecting shaft 41 and the thread section of the knock rod 43 respectively.
By adopting the technical scheme, 1, the knocking rod 43 and the lock sleeve 42 can be detached, so that the packaging, cleaning and disinfection of the device are further facilitated; 2. the lock sleeve 42 is respectively in threaded connection with the threaded section of the connecting shaft 41 and the threaded section of the knocking rod 43, so that the lock sleeve 42, the connecting shaft 41 and the knocking rod 43 can be conveniently disassembled and assembled; 3. through the threaded connection of the lock sleeve 42 and the threaded section of the connecting shaft 41 and the threaded section of the knocking rod 43, when the lock sleeve 42, the connecting shaft 41 and the knocking rod 43 are connected together, the knocking rod 43 is not easy to shake and rotate, and therefore the operation use is not influenced.
In order to further optimize the technical scheme, the side wall of the extension shaft 2, which is opposite to the micro fracture head 3, is provided with an inclined hole 20, the inclined direction of the inclined hole 20 is the same as that of the connecting shaft 41, and one end, far away from the sleeve, of the connecting shaft 41 is in mortise and tenon connection with the inclined hole 20.
This application adopts above-mentioned technical scheme, through seting up inclined hole 20 on extending axle 2 to make connecting axle 41 connect on extending axle 2, and because connecting axle 41 keeps away from telescopic one end and 20 mortise-tenon joints in inclined hole, make its connection firm.
In order to further optimize the above solution, the extension shaft 2 is welded to the connection shaft 41.
This application adopts above-mentioned technical scheme, further improves the steadiness that connecting axle 41 connects on extension axle 2.
In order to further optimize the above solution, the extension shaft 2 is connected with the connection shaft 41 by a pin.
This application adopts above-mentioned technical scheme, further improves the steadiness that connecting axle 41 connects on extending axle 2.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A microfractor, comprising:
the bone fracture plate comprises a handle (1), wherein an extension shaft (2) coaxial with the handle is fixed at one end of the handle (1), and a microfracture head (3) is bent at one end, far away from the handle (1), of the extension shaft (2);
strike subassembly (4), the one end of striking subassembly (4) is connected extend on axle (2), the other end is to keeping away from extend axle (2) and be close to the direction of handle (1) is extended, just strike the axis of subassembly (4) with the axis of extending axle (2) is formed with contained angle alpha, simultaneously strike subassembly (4) with microfracture head (3) partial residence is in extend the both sides that axle (2) is relative.
2. The microfractor as recited in claim 1, wherein the angle α is 45 degrees.
3. The microfractor according to any one of claims 1-2, wherein the striking assembly (4) comprises: a connecting shaft (41), a lock sleeve (42) and a knock bar (43);
one end of the connecting shaft (41) is connected to the extending shaft (2), the other end of the connecting shaft extends in the direction far away from the extending shaft (2) and close to the handle (1), the axis of the connecting shaft (41) and the axis of the extending shaft (2) form the included angle alpha, and meanwhile, the connecting shaft (41) and the microfracture head (3) are respectively arranged on two opposite sides of the extending shaft (2);
one end, far away from the extension shaft (2), of the connecting shaft (41) is detachably connected with one end of the knocking rod (43) through the lock sleeve (42), and meanwhile, the axes of the connecting shaft (41), the lock sleeve (42) and the knocking rod (43) are collinear.
4. A microfracture device as claimed in claim 3, wherein the end of the knock bar (43) remote from the lock sleeve (42) is fixed with a cap (430) having a diameter greater than the diameter of the knock bar (43).
5. The microfracture device according to claim 3, wherein the inner wall of the lock sleeve (42) is threaded, and the connecting shaft (41) and the knock bar (43) are threaded on the outer wall of the lock sleeve (42), and the lock sleeve (42) is threaded with the threaded section of the connecting shaft (41) and the threaded section of the knock bar (43), respectively.
6. The microfracture device according to claim 3, wherein an inclined hole (20) is formed in the side wall of the extension shaft (2) opposite to the microfracture head (3), the inclined direction of the inclined hole (20) is the same as the inclined direction of the connecting shaft (41), and one end of the connecting shaft (41) far away from the sleeve is in mortise and tenon joint with the inclined hole (20).
7. A microfractor according to claim 6, wherein the extension shaft (2) is welded to the connection shaft (41).
8. A microfractor according to claim 6, wherein the extension shaft (2) is pinned to the connection shaft (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211001141.6A CN115300039A (en) | 2022-08-19 | 2022-08-19 | Micro-fracture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211001141.6A CN115300039A (en) | 2022-08-19 | 2022-08-19 | Micro-fracture device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115300039A true CN115300039A (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211001141.6A Pending CN115300039A (en) | 2022-08-19 | 2022-08-19 | Micro-fracture device |
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| Country | Link |
|---|---|
| CN (1) | CN115300039A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070270870A1 (en) * | 2006-03-15 | 2007-11-22 | Torrie Paul A | Microfracture Pick |
| WO2013112308A1 (en) * | 2012-01-29 | 2013-08-01 | Smith & Nephew, Inc. | Microfracture pick |
| CN105025822A (en) * | 2013-03-14 | 2015-11-04 | 史密夫和内修有限公司 | Microfracture pick |
| CN110811807A (en) * | 2019-11-08 | 2020-02-21 | 丽水市人民医院 | Vertebral canal internal fracture restorer |
| CN213850993U (en) * | 2020-09-18 | 2021-08-03 | 刘岩 | Tibial plateau fracture collapse reduction tool |
| US20210386432A1 (en) * | 2020-06-11 | 2021-12-16 | Arthrex, Inc. | Microfracture pick systems and associated surgical methods |
-
2022
- 2022-08-19 CN CN202211001141.6A patent/CN115300039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070270870A1 (en) * | 2006-03-15 | 2007-11-22 | Torrie Paul A | Microfracture Pick |
| WO2013112308A1 (en) * | 2012-01-29 | 2013-08-01 | Smith & Nephew, Inc. | Microfracture pick |
| CN105025822A (en) * | 2013-03-14 | 2015-11-04 | 史密夫和内修有限公司 | Microfracture pick |
| CN110811807A (en) * | 2019-11-08 | 2020-02-21 | 丽水市人民医院 | Vertebral canal internal fracture restorer |
| US20210386432A1 (en) * | 2020-06-11 | 2021-12-16 | Arthrex, Inc. | Microfracture pick systems and associated surgical methods |
| CN213850993U (en) * | 2020-09-18 | 2021-08-03 | 刘岩 | Tibial plateau fracture collapse reduction tool |
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