CN104939906A - Memory alloy bone plate dismantling device - Google Patents
Memory alloy bone plate dismantling device Download PDFInfo
- Publication number
- CN104939906A CN104939906A CN201510443327.0A CN201510443327A CN104939906A CN 104939906 A CN104939906 A CN 104939906A CN 201510443327 A CN201510443327 A CN 201510443327A CN 104939906 A CN104939906 A CN 104939906A
- Authority
- CN
- China
- Prior art keywords
- memory alloy
- housing
- knob
- jig arm
- lower handle
- Prior art date
- 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.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
Abstract
The invention discloses a memory alloy bone plate dismantling device which comprises a rectangular tubular housing, two guide rods mounted in the housing in a sliding manner, clamping arms respectively connected with the two guide rods rotationally and a linkage frame connected with the two guide rods, wherein the two clamping arms are symmetrically arranged; the lower end parts of the two clamping arms are bent oppositely to form upper pulling parts; a tension spring used for driving the lower ends of the two clamping arms to be close oppositely is arranged between the lower parts of the two clamping arms; an upper handle is rotationally connected with the upper part of the linkage frame; the outer wall of the housing is rotationally connected with a lower handle; the upper handle is rotationally connected with the lower handle. According to the memory alloy bone plate dismantling device, hoop arms of the memory alloy bone plate are clamped through the two clamping arms, then the upper hand and the lower handle are oppositely pressed to enable the clamping arms to lift to pull the hoop arms towards the position above the housing, after the hoop arms are pulled out, the upper ends of the clamping arms are pressed to enable the upper pulling parts to be separated from the hoop arms and after the hoop arms are pulled out one by one, the bone plate dismantling is completed and the operation is convenient and fast.
Description
Technical field
The invention belongs to medical instruments field, be specifically related to a kind of detaching device being exclusively used in dismounting memory alloy plate osteosynthesis.
Background technology
At present when removing memory alloy plate osteosynthesis, do not have special instrument, it is convenient not to remove, and the operating time is longer.Research and develop the eager desire that a kind of specific purpose tool being convenient to remove memory alloy plate osteosynthesis is orthopedist.
Summary of the invention
Technical problem to be solved by this invention is: the deficiency existed for prior art, provides a kind of simple and compact for structure, can remove the detaching device of memory alloy plate osteosynthesis in direction.
For realizing the object of the present invention, be achieved by the following technical solutions: a kind of memory alloy plate osteosynthesis detaching device, include the housing of a rectangular tubular, be slidably mounted on two guide posts in housing, be rotatably connected on the jig arm on two guide posts respectively, and the linkage rack be connected with two guide posts;
Described housing bottom forms the positioning port in order to coordinate with the anchor ear arm width of memory alloy plate osteosynthesis; Described housing two relative walls form two groups and coordinates with two described guide posts the targeting port be slidably connected; Another two relative walls of described housing form two pressing mouths stretched out with described jig arm upper end; Two described jig arm are symmetrical arranged, and two jig arm bottoms are bent to form pull-up portion in opposite directions; Be connected with between two jig arm bottoms to order about the extension spring close in opposite directions of two jig arm lower ends;
Described linkage rack top is rotatably connected to a up knob, and described housing exterior walls is rotatably connected to a lower handle, and described up knob, lower handle are rotationally connected; Described housing forms the through hole passed for up knob;
Described linkage rack is fixedly connected with rotating shaft, and the leading section of described up knob forms the bar hole be connected with axis of rotation.
Preferably: described linkage rack includes the connecting plate of the inversion V-arrangement that two be arranged in parallel, and is connected to the linkage board between two connecting plate middle upper portion, and described rotating shaft is fixedly connected on described linkage board.
Preferably: the front portion of described up knob has two parallel plate bodys, and described lower handle, between two plate bodys, two described plate bodys all forms the described bar hole be connected with described axis of rotation.
Preferably: described housing exterior walls is welded with the hinged seat be rotationally connected with described lower handle.
Preferably: the both sides, position that described up knob and lower handle are rotationally connected are the arc of back-flexing.
Compared with prior art, the invention has the beneficial effects as follows: the anchor ear arm being clamped memory alloy plate osteosynthesis by two jig arm, again by pressing up knob in opposite directions, lower handle makes jig arm rise thus be drawn above housing by anchor ear arm, after anchor ear arm is all drawn out, pressing jig arm upper end makes pull-up portion and anchor ear arm depart from, after being pulled out one by one by anchor ear arm, the dismounting of blade plate can be completed, convenient to operation.
Accompanying drawing explanation
Fig. 1, Fig. 2 are structural representations of the present invention.
Fig. 3 is decomposition texture schematic diagram of the present invention.
1, housing; 10, hinged seat; 11, positioning port; 12, targeting port; 13, mouth is pressed; 2, jig arm; 21, pull-up portion; 3, guide post; 4, linkage rack; 41, rotating shaft; 5, up knob; 51, bar hole; 6, lower handle; 7, extension spring.
Detailed description of the invention
With reference to the accompanying drawings the specific embodiment of the present invention is made a detailed explanation below.
According to shown in Fig. 1 to Fig. 3, the present embodiment is a kind of memory alloy plate osteosynthesis detaching device, includes the housing 1 of a rectangular tubular, is slidably mounted on two guide posts 3 in housing, be rotatably connected on the jig arm 2 on two guide posts respectively, and the linkage rack 4 be connected with two guide posts.
Described housing bottom forms the positioning port 11 in order to coordinate with the anchor ear arm width of memory alloy plate osteosynthesis; Described housing two relative walls form two groups and coordinates with two described guide posts the targeting port 12 be slidably connected; Another two relative walls of described housing form two pressing mouths 13 stretched out with described jig arm upper end; Two described jig arm are symmetrical arranged, and two jig arm bottoms are bent to form pull-up portion 21 in opposite directions; Be connected with between two jig arm bottoms to order about the extension spring 7 close in opposite directions of two jig arm lower ends.
Described linkage rack top is rotatably connected to a up knob 5, and described housing exterior walls is rotatably connected to a lower handle 6, and described up knob, lower handle are rotationally connected; Described housing forms the through hole passed for up knob.
Described linkage rack is fixedly connected with rotating shaft 41, the leading section of described up knob forms the bar hole 51 be connected with axis of rotation.
Described linkage rack includes the connecting plate of the inversion V-arrangement that two be arranged in parallel, and is connected to the linkage board between two connecting plate middle upper portion, and described rotating shaft 41 is fixedly connected on described linkage board.
The front portion of described up knob has two parallel plate bodys, and described lower handle, between two plate bodys, two described plate bodys all forms the described bar hole 51 be rotationally connected with described rotating shaft 41.
Described housing exterior walls is welded with the hinged seat 10 be rotationally connected with described lower handle.
The both sides, position that described up knob and lower handle are rotationally connected are the arc of back-flexing.
During use, pressing jig arm upper end makes two jig arm clamp the anchor ear arm of memory alloy plate osteosynthesis, positioning port is stuck in anchor ear arm and memory alloy plate osteosynthesis main body connected position, again by pressing up knob in opposite directions, lower handle makes jig arm rise thus be drawn above housing by anchor ear arm, after anchor ear arm is all drawn out, pressing jig arm upper end makes pull-up portion and anchor ear arm depart from, after being pulled out one by one by anchor ear arm, the dismounting of blade plate can be completed, convenient to operation.
Claims (3)
1. a memory alloy plate osteosynthesis detaching device, is characterized in that: the housing including a rectangular tubular, is slidably mounted on two guide posts in housing, is rotatably connected on the jig arm on two guide posts respectively, and the linkage rack be connected with two guide posts; Described housing bottom forms the positioning port in order to coordinate with the anchor ear arm width of memory alloy plate osteosynthesis; Described housing two relative walls form two groups and coordinates with two described guide posts the targeting port be slidably connected; Another two relative walls of described housing form two pressing mouths stretched out with described jig arm upper end; Two described jig arm are symmetrical arranged, and two jig arm bottoms are bent to form pull-up portion in opposite directions; Be connected with between two jig arm bottoms to order about the extension spring close in opposite directions of two jig arm lower ends; Described linkage rack top is rotatably connected to a up knob, and described housing exterior walls is rotatably connected to a lower handle, and described up knob, lower handle are rotationally connected; Described housing forms the through hole passed for up knob; Described linkage rack is fixedly connected with rotating shaft, and the leading section of described up knob forms the bar hole be connected with axis of rotation; Described linkage rack includes the connecting plate of the inversion V-arrangement that two be arranged in parallel, and is connected to the linkage board between two connecting plate middle upper portion, and described rotating shaft is fixedly connected on described linkage board; The front portion of described up knob has two parallel plate bodys, and described lower handle, between two plate bodys, two described plate bodys all forms the described bar hole be connected with described axis of rotation.
2. a kind of memory alloy plate osteosynthesis detaching device as claimed in claim 1, is characterized in that: described housing exterior walls is welded with the hinged seat be rotationally connected with described lower handle.
3. a kind of memory alloy plate osteosynthesis detaching device as claimed in claim 1, is characterized in that: the both sides, position that described up knob and lower handle are rotationally connected are the arc of back-flexing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510443327.0A CN104939906B (en) | 2015-07-26 | 2015-07-26 | A kind of memory alloy plate osteosynthesis removes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510443327.0A CN104939906B (en) | 2015-07-26 | 2015-07-26 | A kind of memory alloy plate osteosynthesis removes device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104939906A true CN104939906A (en) | 2015-09-30 |
| CN104939906B CN104939906B (en) | 2017-08-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510443327.0A Active CN104939906B (en) | 2015-07-26 | 2015-07-26 | A kind of memory alloy plate osteosynthesis removes device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104939906B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2440123A (en) * | 1946-10-07 | 1948-04-20 | Chester H Smith | Removable bone plate |
| CN2368469Y (en) * | 1999-05-13 | 2000-03-15 | 宁少伟 | Detacher for bone fracture plate |
| WO2003037192A1 (en) * | 2001-11-02 | 2003-05-08 | Eugene Sherry | Apparatus and methods for bone surgery |
| CN204379427U (en) * | 2015-01-08 | 2015-06-10 | 张文卿 | A kind of nail-fetching device for orthopaedics |
-
2015
- 2015-07-26 CN CN201510443327.0A patent/CN104939906B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2440123A (en) * | 1946-10-07 | 1948-04-20 | Chester H Smith | Removable bone plate |
| CN2368469Y (en) * | 1999-05-13 | 2000-03-15 | 宁少伟 | Detacher for bone fracture plate |
| WO2003037192A1 (en) * | 2001-11-02 | 2003-05-08 | Eugene Sherry | Apparatus and methods for bone surgery |
| CN204379427U (en) * | 2015-01-08 | 2015-06-10 | 张文卿 | A kind of nail-fetching device for orthopaedics |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104939906B (en) | 2017-08-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181130 Address after: 200032 No. 136, Shanghai Medical College Road Patentee after: Zhongshan Hospital Affiliated to Fudan University Address before: Room 618, F Building, Wuxi People's Hospital, 299 Qingyang Road, Nanchang District, Wuxi City, Jiangsu Province, 214000 Patentee before: Zhao Quanming |
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| TR01 | Transfer of patent right |