CN102038544B - Stealth blade for treating aseptic caput femoris necrosis - Google Patents
Stealth blade for treating aseptic caput femoris necrosis Download PDFInfo
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- CN102038544B CN102038544B CN2009101973695A CN200910197369A CN102038544B CN 102038544 B CN102038544 B CN 102038544B CN 2009101973695 A CN2009101973695 A CN 2009101973695A CN 200910197369 A CN200910197369 A CN 200910197369A CN 102038544 B CN102038544 B CN 102038544B
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- hollow pipe
- blade
- femoral head
- scraper
- under water
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Abstract
The invention relates to a stealth blade for treating aseptic caput femoris necrosis, comprising a hollow pipe, a beam, a spiral mechanism and two blades. The beam is arranged on the outer wall of the hollow pipe, one end of the spiral mechanism is inserted in the hollow pipe, the two blades have cambered notches and are articulated, one end of one blade is in rotating connection with one end of the spiral mechanism inserting into the hollow pipe, one end of the other blade is connected with the hollow pipe, and the spiral mechanism moving along the axis direction of the hollow pipe drives the two blades to move, changes an included angle between the two blades and further changes the cleared diameter. In the stealth blade for treating aseptic caput femoris necrosis, the two blades have the cambered notches which can be fully attached to the inner wall of a tunnel hole and the inner wall of caput femoris so as to cleanly clear dead bones once and improve the working efficiency of the stealth blade for treating aseptic caput femoris necrosis.
Description
Technical field
The present invention relates to medical apparatus and instruments, relate in particular to a kind of scraper that moves under water of treating aseptic necrosis of femoral head.
Background technology
The main pathology of femur head necrosis is that femoral head blood fortune is obstructed, and wrecks and the head sclerotin ischemia that causes, is prone to send out the crowd in 31-60 year.The core decompression is a kind of therapeutic method of surgery of early stage femur head necrosis, and the scraper that moves under water of treatment aseptic necrosis of femoral head is the normal a kind of medical apparatus and instruments that uses in the core decompression operation.The scraper that moves under water of treatment aseptic necrosis of femoral head is used to remove sequestrum.
Chinese patent CN 2469895 Y have disclosed a kind of " femoral head moves under water and enlarges decompressor "; It comprises that one advances hollow axle, at the front end that advances hollow axle a through hole is arranged, and is hinged with two blades in the through hole; A slide bar of regulating two blade opening angles is housed in advancing hollow axle; Advancing the hollow axle rear end that nut is housed, on slide bar, be connected with the screw rod that matches with nut, the other end of screw rod is fixed on the feeding adjustment medicated cap.The move under water otch of two blades that enlarge decompressor of this femoral head is a linear, and straight slits has limited blade and the angle and the tangent plane that are excised between the object, thereby can not guarantee to be excised the complete excision of thing.
Summary of the invention
The object of the present invention is to provide a kind of scraper that moves under water of treating aseptic necrosis of femoral head, the otch of its blade can be fitted with being excised thing fully, can remove by the excision thing complete, effectively.
In order to reach above-mentioned purpose; The present invention provides a kind of scraper that moves under water of treating aseptic necrosis of femoral head; The screw mechanism and two blades that comprise hollow pipe, be arranged on hollow pipe outer wall cross tube, an end insert hollow pipe, the otch of said two blades is all curved, and this two blade is hinged; Wherein the end in an end of a blade and the screw mechanism insertion hollow pipe is rotationally connected, and an end of another blade is connected with hollow pipe; Said screw mechanism drives two blade movements when the axis direction of hollow pipe moves, and changes the angle between two blades, and then changes the diameter of removing.
The scraper that moves under water of above-mentioned treatment aseptic necrosis of femoral head, wherein, an end of said hollow pipe is provided with window, and the inwall of this window is groove-like, and exposes.
The scraper that moves under water of above-mentioned treatment aseptic necrosis of femoral head, wherein, said two blades are arranged in the above-mentioned window.
The scraper that moves under water of above-mentioned treatment aseptic necrosis of femoral head, wherein, said screw mechanism comprises screw rod, sliding bar, setscrew nut and top medicated cap; One end of said screw rod is connected with sliding bar through rotary part, the sliding bar rotation relatively of this rotary part; Said top medicated cap is fixedly installed on the other end of screw rod, rotates that this top medicated cap can drive screw rod and rotary part rotates together; Said setscrew nut is provided with the hole, and said setscrew nut passes through this borehole jack on screw rod; Said screw rod is provided with screw thread near a section of top medicated cap, and the inwall in the hole of said setscrew nut is provided with the female thread that is complementary with screw flight.
The scraper that moves under water of above-mentioned treatment aseptic necrosis of femoral head, wherein, said hollow pipe is provided with the female thread that is complementary with screw flight near one section inwall of top medicated cap.
The scraper that moves under water of above-mentioned treatment aseptic necrosis of femoral head, wherein, said cross bar is fixedly installed on an end of hollow pipe, and this cross bar is provided with the hole, supplies hollow pipe and screw rod to insert in it.
The scraper that moves under water of above-mentioned treatment aseptic necrosis of femoral head, wherein, said cross bar is provided with a frame, and said setscrew nut is embedded in this frame, and said setscrew nut can move along the screw rod rotation in frame.
The scraper that moves under water of above-mentioned treatment aseptic necrosis of femoral head, wherein, the profile of said cross bar is curved, and the hand-type when holding cross bar is consistent.
The scraper that moves under water of above-mentioned treatment aseptic necrosis of femoral head, wherein, an end of said sliding bar is provided with connector, and said sliding bar is connected with a blade rotation through this connector.
It is curved that the present invention treats the otch of two blades of the scraper that moves under water of aseptic necrosis of femoral head; Can fit fully with the inwall and the capital inwall in hole, tunnel; The disposable clean removing sequestrum of ability, the work efficiency of the scraper that moves under water of raising treatment aseptic necrosis of femoral head; Adopt screw mechanism to regulate the angle between two blades, can accurately control the angle between two blades through the design of double thread and flight pitch; The profile of cross bar adopts the arc design, and the hand-type when holding cross bar is consistent, and operates as snug as a bug in a rug, conveniently.
Description of drawings
The scraper that moves under water of treatment aseptic necrosis of femoral head of the present invention is provided by following embodiment and accompanying drawing.
Fig. 1 is the structural representation that the present invention treats the scraper that moves under water of aseptic necrosis of femoral head.
Fig. 2 is the profile of screw mechanism among the present invention.
Fig. 3 is the sketch map of one of two blade rotation states among the present invention.
The specific embodiment
Below will combine Fig. 1～Fig. 3 that the scraper that moves under water of treatment aseptic necrosis of femoral head of the present invention is done further to describe in detail.
When using femoral head to move under water expansion decompressor removal sequestrum; Open earlier a through hole, capital tunnel, then, the femoral head front end (end that contains blade) that enlarges decompressor that moves under water is extend in the hole, tunnel at femoral head greater trochanter place; Under the cooperation of X-ray or other fluoroscopic apparatus; The femoral head angle between two blades that enlarge decompressor that moves under water is regulated on the limit, and the rotation femoral head expansion decompressor that moves under water in limit is progressively removed sequestrum clean.Owing to the inwall and the capital inwall in hole, tunnel are curved, therefore, straight slits is difficult to fit fully with the inwall and the capital inwall in hole, tunnel, uses the femoral head of straight slits to move under water the very difficult complete removing of expansion decompressor by the excision thing.
It is that the otch of two blades of the scraper that moves under water of treatment aseptic necrosis of femoral head is fitted with the inwall and the capital inwall in hole, tunnel fully that the present invention treats technical problem that the scraper that moves under water of aseptic necrosis of femoral head will solve, and complete removings quilt excises thing.
Referring to Fig. 1, the scraper that moves under water that the present invention treats aseptic necrosis of femoral head comprises hollow pipe 10, cross bar 20, screw mechanism 30 and two blades 41 and 42;
Said cross bar 20 is arranged on the outer wall of hollow pipe 10;
One end of said screw mechanism 30 inserts in the hollow pipe 10, and this screw mechanism 30 can move by the axis direction along hollow pipe 10 in hollow pipe 10;
Said two blades 41 and 42 otch are all curved, and this two blade 41 and 42 is hinged, and wherein the ends that insert in the hollow pipes 10 of an end of a blade 41 and screw mechanism 30 are rotationally connected, and an end of another blade 42 is connected with hollow pipe 10;
Said screw mechanism 30 drives two blades 41 and 42 motions when the axis direction of hollow pipe 10 moves, and changes the angle between two blades 41 and 42, and then changes the diameter of removing.
One end of said hollow pipe 10 is provided with window 11, and the inwall 12 of this window 11 is groove-like, and exposes, and said two blades 41 and 42 are arranged in this window 11, and an end of said blade 42 is rotatably connected on the inwall 12 of window 11.
Referring to Fig. 2, said screw mechanism 30 comprises screw rod 31, sliding bar 35, setscrew nut 33 and top medicated cap 34;
One end of said screw rod 31 is connected with sliding bar 35 through rotary part 36, sliding bar 35 rotations relatively of this rotary part 36;
Said top medicated cap 34 is fixedly installed on the other end of screw rod 31, rotates this top medicated cap 34 and can drive screw rod 31 and rotate together with rotary part 36;
Said setscrew nut 33 is enclosed within on the screw rod;
Said sliding bar 35 and a part of screw rod 31 insert in the hollow pipe 10, and said top medicated cap 34 is exposed at outside the hollow pipe 10;
Said screw rod 31 is provided with screw thread 32 near a section of top medicated cap 34, and correspondingly, said hollow pipe inwall is provided with the female thread (not shown) that one section screw thread 32 with screw rod 31 is complementary;
Said cross bar 20 is fixedly installed on an end of hollow pipe 10, and the central authorities of this cross bar 20 are provided with hole 21, supplies hollow pipe 10 and screw rod 31 to insert in it;
Said cross bar 20 is provided with a frame 22; Said setscrew nut 33 is embedded in this frame 22; These setscrew nut 33 central authorities are provided with the hole; Said screw rod 31 passes this hole, and this hole inwall is provided with the female thread (not shown) that the screw thread 32 with screw rod 31 is complementary, and said setscrew nut 33 can move along screw rod 31 rotations in frame 22.
One end of said sliding bar 35 is provided with connector 37, and said sliding bar 35 is rotationally connected with blade 41 through this connector 37.
The method for using of said screw mechanism 30 is: rotation top medicated cap 34 drives screw rod 31 and rotates together with rotary part 36; Screw rod 31 relies on screw thread 32 and the female thread on hollow pipe 10 inwalls on its outer wall to move along the axis direction of hollow pipe 10 simultaneously in the process of rotation; Thereby drive sliding bar 35 moves along the axis direction of hollow pipe 10; Promptly rotate top medicated cap 34 and can make sliding bar 35 reciprocating along the axis direction of hollow pipe 10, sliding bar 35 drives two blades 41 and 42 along the reciprocating motion of the axis direction of hollow pipe 10 and moves, and changes the angle between two blades 41 and 42; And then change the diameter of removing, as shown in Figure 3.
Spacing between the thickness of the screw thread on the said screw rod and adjacent two screw threads can design as required, so that accurately control sliding bar displacement.
The structure of said screw mechanism is not limited thereto, as long as screw mechanism can move along the axis direction of hollow pipe, and can drive two blade movements, changes the angle between two blades, changes the removing diameter and gets final product.
The profile of said cross bar 20 is designed to arc, and the hand-type when holding cross bar 20 is consistent, and is comfortable during operation, convenient, is convenient to control operation.
When the scraper that moves under water that uses the present invention to treat aseptic necrosis of femoral head is removed sequestrum; Open a through hole, capital tunnel earlier at femoral head greater trochanter place; Then, the front end (end that contains blade) of the scraper that moves under water of treatment aseptic necrosis of femoral head is extend in the hole, tunnel, under the cooperation of X-ray or other fluoroscopic apparatus; Angle between two blades of the scraper that moves under water of rotation top, limit medicated cap adjustment of treatment aseptic necrosis of femoral head (promptly change and remove diameter); The limit rotating horizontal pole drives two blade rotation excision sequestrum, because the otch of two blades is curved, the inwall and the capital inwall in otch and hole, tunnel are fitted fully; The disposable clean removing sequestrum of ability, the work efficiency of the scraper that moves under water of raising treatment aseptic necrosis of femoral head.
Claims (7)
1. scraper that moves under water of treating aseptic necrosis of femoral head, the screw mechanism and two blades that comprise hollow pipe, be arranged on hollow pipe outer wall cross tube, an end insert hollow pipe is characterized in that,
The otch of said two blades is all curved, and wherein the end in the near-end of proximal blade and the screw mechanism insertion hollow pipe is rotationally connected, and the far-end of far-end blade and the far-end of hollow pipe are rotationally connected, and the near-end of the far-end of proximal blade and far-end blade is hinged;
One end of said hollow pipe is provided with window, and the inwall of this window is groove-like, and exposes;
Said two blades are arranged in the above-mentioned window;
Said screw mechanism drives two blade movements when the axis direction of hollow pipe moves, and changes the angle between two blades, and then changes the diameter of removing.
2. the scraper that moves under water of treatment aseptic necrosis of femoral head as claimed in claim 1 is characterized in that, said screw mechanism comprises screw rod, sliding bar, setscrew nut and top medicated cap;
One end of said screw rod is connected with sliding bar through rotary part, the sliding bar rotation relatively of this rotary part;
Said top medicated cap is fixedly installed on the other end of screw rod, rotates that this top medicated cap can drive screw rod and rotary part rotates together;
Said setscrew nut is provided with the hole, and said setscrew nut passes through this borehole jack on screw rod;
Said screw rod is provided with screw thread near a section of top medicated cap, and the inwall in the hole of said setscrew nut is provided with the female thread that is complementary with screw flight.
3. the scraper that moves under water of treatment aseptic necrosis of femoral head as claimed in claim 2 is characterized in that, said hollow pipe is provided with the female thread that is complementary with screw flight near one section inwall of top medicated cap.
4. the scraper that moves under water of treatment aseptic necrosis of femoral head as claimed in claim 2 is characterized in that, said cross bar is fixedly installed on an end of hollow pipe, and this cross bar is provided with the hole, supplies hollow pipe and screw rod to insert in it.
5. the scraper that moves under water of treatment aseptic necrosis of femoral head as claimed in claim 2 is characterized in that said cross bar is provided with a frame, and said setscrew nut is embedded in this frame, and said setscrew nut can move along the screw rod rotation in frame.
6. like the scraper that moves under water of claim 1,3 or 4 described treatment aseptic necrosis of femoral head, it is characterized in that the profile of said cross bar is curved, the hand-type when holding cross bar is consistent.
7. the scraper that moves under water of treatment aseptic necrosis of femoral head as claimed in claim 2 is characterized in that, an end of said sliding bar is provided with connector, and said sliding bar is connected with a blade rotation through this connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101973695A CN102038544B (en) | 2009-10-19 | 2009-10-19 | Stealth blade for treating aseptic caput femoris necrosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101973695A CN102038544B (en) | 2009-10-19 | 2009-10-19 | Stealth blade for treating aseptic caput femoris necrosis |
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| Publication Number | Publication Date |
|---|---|
| CN102038544A CN102038544A (en) | 2011-05-04 |
| CN102038544B true CN102038544B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101973695A Active CN102038544B (en) | 2009-10-19 | 2009-10-19 | Stealth blade for treating aseptic caput femoris necrosis |
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| CN104686195B (en) * | 2015-02-27 | 2018-05-11 | 司健 | Mycelium stimulation knife and the mushroom culturing device using the mycelium stimulation knife |
| CN109199529A (en) * | 2018-09-27 | 2019-01-15 | 江苏大学附属医院 | A kind of surface of a wound rotary-cut cleaning plant of flexible knife bar |
| CN110464420B (en) * | 2019-08-13 | 2021-04-02 | 郑州大学第一附属医院 | Interventional device for cardiovascular therapy |
| CN111265273A (en) * | 2020-03-13 | 2020-06-12 | 青岛大学附属医院 | Underwalk scraper for treating aseptic femoral head necrosis |
| CN111616777B (en) * | 2020-05-28 | 2021-04-13 | 胡均 | Minimally invasive scalpel system |
| CN116098676A (en) * | 2023-01-31 | 2023-05-12 | 中国人民解放军总医院第八医学中心 | Medical drill bit |
Citations (9)
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|---|---|---|---|---|
| US5122144A (en) * | 1989-09-26 | 1992-06-16 | Kirschner Medical Corporation | Method and instrumentation for unicompartmental total knee arthroplasty |
| FR2721192A1 (en) * | 1994-06-20 | 1995-12-22 | Landanger Landos | Interchangeable orthopaedic scraper handle |
| CN2469895Y (en) * | 2001-03-21 | 2002-01-09 | 王玉山 | Sneak-dilating decompressor for head of femur |
| CN2645614Y (en) * | 2003-09-25 | 2004-10-06 | 张希昌 | Rotating drill |
| CN1845709A (en) * | 2003-09-03 | 2006-10-11 | 科丰公司 | Devices for creating voids in interior body regions and related methods |
| WO2008099187A2 (en) * | 2007-02-15 | 2008-08-21 | Depuy International Limited | A tool for forming a cavity within a bone |
| CN101433468A (en) * | 2008-12-16 | 2009-05-20 | 张纯朴 | Device for cutting bone inside femoral head |
| CN201299625Y (en) * | 2008-12-08 | 2009-09-02 | 张长海 | Bone chisel |
| CN201564551U (en) * | 2009-10-28 | 2010-09-01 | 上海贝奥路生物材料有限公司 | Intramedullary decompression apparatus |
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2009
- 2009-10-19 CN CN2009101973695A patent/CN102038544B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5122144A (en) * | 1989-09-26 | 1992-06-16 | Kirschner Medical Corporation | Method and instrumentation for unicompartmental total knee arthroplasty |
| FR2721192A1 (en) * | 1994-06-20 | 1995-12-22 | Landanger Landos | Interchangeable orthopaedic scraper handle |
| CN2469895Y (en) * | 2001-03-21 | 2002-01-09 | 王玉山 | Sneak-dilating decompressor for head of femur |
| CN1845709A (en) * | 2003-09-03 | 2006-10-11 | 科丰公司 | Devices for creating voids in interior body regions and related methods |
| CN2645614Y (en) * | 2003-09-25 | 2004-10-06 | 张希昌 | Rotating drill |
| WO2008099187A2 (en) * | 2007-02-15 | 2008-08-21 | Depuy International Limited | A tool for forming a cavity within a bone |
| CN201299625Y (en) * | 2008-12-08 | 2009-09-02 | 张长海 | Bone chisel |
| CN101433468A (en) * | 2008-12-16 | 2009-05-20 | 张纯朴 | Device for cutting bone inside femoral head |
| CN201564551U (en) * | 2009-10-28 | 2010-09-01 | 上海贝奥路生物材料有限公司 | Intramedullary decompression apparatus |
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| Publication number | Publication date |
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| CN102038544A (en) | 2011-05-04 |
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