CN109199567A - A kind of extractor for bone-pin for four limbs - Google Patents
A kind of extractor for bone-pin for four limbs Download PDFInfo
- Publication number
- CN109199567A CN109199567A CN201811266976.8A CN201811266976A CN109199567A CN 109199567 A CN109199567 A CN 109199567A CN 201811266976 A CN201811266976 A CN 201811266976A CN 109199567 A CN109199567 A CN 109199567A
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- rod
- turntable
- bone
- line slide
- fastening bolt
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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
- A61B17/56—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
-
- 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
- A61B2017/564—Methods for bone or joint treatment
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The present invention relates to technical field of medical equipment, in particular to a kind of extractor for bone-pin for four limbs, including screwdriver and bracket, the main body periphery of the screwdriver is provided with external screw thread, its bottom is provided with driver bit, the bracket includes the fixed frame of front and back hollow out, turntable, line slide rail, sliding block, support rod and support plate, turntable is provided at the top of the fixed frame, there are two parallel line slide rails for the radial direction setting of the turntable, the inner peripheral surface of the line slide rail both side ends and turntable is slidably connected, there are two sliding blocks for sliding setting between two line slide rails, a support rod is hinged at the top of each sliding block, the other end of two support rods is fixedly connected on the bottom of support plate, screwdriver screw thread, which runs through, to be connected in support plate.The present invention enables anyone that can operate nail-fetching device and screwdriver and bone nail at any angle during nail is taken to keep straight line by the support of bracket, substantially increases the success rate for taking nail.
Description
Technical field
The present invention relates to technical field of medical equipment, in particular to a kind of extractor for bone-pin for four limbs.
Background technique
Treatment for fracture, is clinically put into fracture site frequently with bone nail, promotes fracture to restore normal condition, generally
Bone nail is all metal product, because can interfere the growth of fixed position soft tissue and blood vessel in long-term existence body, leads to local bone
Matter is loose, so needing to take out bone nail in due course after fracture patient healing, but bone nail is taken usually to occur taking out difficult situation, is easy to make
At bone nail stripped thread, the situations such as fracture, and when reprocessing can cause pain and injury again to patient, also takes nail to medical worker
Work increase difficulty, in order to prevent bone nail take out during stripped thread and fracture, have to keep operation nail-fetching device tool when it is steady
It is qualitative, it is allowed to keep straight line with bone nail, avoids taking out utensil and wave, avoid bone nail tail groove unbalance stress, when taking nail not
Stable operation is only needed also to need very big strength, this just proposes very high requirement to the operative skill of medical worker, not
It is that any doctor can operate, current nail-fetching device some effectively reduces the work of medical worker by means of supporting structure
It measures, improve stability, but because position and angle of the bone nail in bone are also multiplicity, these bracket class schemes are not done
Method successfully manages the taking-up of multi-angle bone nail, still needs to rely on artificial progress, and the effect is unsatisfactory, is nowadays badly in need of a kind of any
Medical worker can operate, stablize the technical solution for smoothly taking out any angle bone nail.
Summary of the invention
A kind of extractor for bone-pin for four limbs proposed the purpose of the present invention is to solve the above problem, for appointing
The bone nail of what angle is able to achieve extractor and bone nail point-blank, substantially reduces because cannot point-blank use
Power and the probability for leading to broken nail, stripped thread, increase success rate of operation, while extractor is put on bracket, fabulous increasing takes
The stability of nail process, any medical worker can operate.
Present invention solves the technical problem that the technical solution used are as follows: a kind of extractor for bone-pin for four limbs, including spiral shell
Silk knife and bracket, the main body periphery of the screwdriver are provided with external screw thread, and bottom is provided with driver bit, and the bracket includes
Fixed frame, turntable, line slide rail, sliding block, support rod and support plate, the fixed frame are the frame of front and back hollow out, the fixation
The center of top of frame is horizontally disposed turntable, is fixedly connected at the top of the periphery of the turntable and fixed frame, the diameter of the turntable
To direction setting there are two parallel line slide rail, the line slide rail along turntable diametrical direction setting and both side ends with
The inner peripheral surface of turntable is slidably connected, and there are two sliding block, the tops of each sliding block for sliding setting between two line slide rails
Portion is hinged with a support rod, and the other end of two support rods is fixedly connected on the bottom of support plate, in the support plate
A through-hole is opened up between two support rods, and internal screw thread is equipped in the through-hole and is matched with the external screw thread of screwdriver.
The bracket is fixed and supported for entire extractor for bone-pin, and fixed frame is placed in plane, required to take nail
Physical feeling (leg or arm) be put into wherein, screwdriver can rotate in support plate, in this way can be relative to human body
It is slowly separate and close, for taking slow nail pulling, support rod outward during nail to be articulated on sliding block, support rod phase can be made
Sliding block is swung in space, sliding block can be slided along line slide rail, be also convenient for changing and taken nail position, line slide rail can be with
Turntable it is any in the radial direction, cooperate the support rod that can be swung, when taking bone nail, so that the screwdriver on support rod can
To adapt to the bone nail of any angle placement, guarantee that bone nail and screwdriver are kept point-blank.
Wherein, preferred embodiment are as follows:
It is provided with raised A on the inside of the turntable, an arc block, two institutes are bridged between the forward end of two line slide rails
It states and also bridges an arc block between the rear end end of line slide rail, fluted A, the groove A is arranged in the outside of the arc block
It is matched with raised A.
The both ends end of two line slide rails, which bridges, arc block, so that the distance between two line slide rails are more fixed,
Be conducive to the stable structure of entire nail-fetching device.
Fastening bolt A is additionally provided at the top of the arc block, the fastening bolt A is matched with turntable.
The fastening bolt A penetrates through groove A, and acts on the raised A inside groove A, and screwing fastening bolt A can will be convex
It plays A to fix relative to groove A, according to the required position for taking bone nail and angle, adjusts position of the line slide rail relative to turntable, adjust
It is whole it is good after, complete fixation of the line slide rail relative to turntable by screwing fastening bolt A.
The two sliding block opposite sides are the opposite concave arc of opening, the screwdriver be located at concave arc composition space just on
Side.
The opposite concave arc of two sliding blocks constitutes a border circular areas, and screwdriver is located at the surface of border circular areas, so that
It takes nail unobscured, conveniently takes nail.
The side of the sliding block is provided with raised B, and fluted B, the protrusion B is arranged in the two line slide rail opposite sides
It is matched with groove B.
The slider top is provided with fastener and matches with line slide rail, and the fastener includes L-type bending and fastening
Bolt B, the L-type bending include orthogonal vertical arm and horizontal arm, and the vertical arm of the L-type bending is perpendicularly fixed at cunning
The top of block, its horizontal arm are arranged in parallel in right above the top of line slide rail, and the fastening bolt B runs through the water of L-type bending
Flat arm simultaneously cooperates with line slide rail.
Fastening bolt B is located at the top of line slide rail, when being screwed down fastening bolt B, so that sliding block and line slide rail
Contacted in the vertical plane where fastening bolt B it is closer, pass through increase frictional force, realize sliding block consolidating relative to line slide rail
It is fixed.
The fixed frame includes upper semisection and lower semisection, and the lower semisection is the U-type groove of opening upwards, the U-type groove
Two-arm end is straight up and two-arm is open-topped hollow structure, and lower semisection is removably inserted into the bottom of the upper semisection
Two-arm in, the top center of the upper semisection is fixedly connected with turntable, is provided on the outside of the U-type groove two-arm of the lower semisection tight
Fixing bolt C, the fastening bolt C are matched with upper semisection.
When being put into inside lower semisection in use, needs are taken and follow closely position, the bottom of upper semisection is then respectively put into two
In the U-type groove two-arm of lower semisection, good position is adjusted, enables turntable close to taking at nail, by tightening fastening bolt C for upper half
Section and lower semisection are fixed.
The screwdriver includes clamping section and screw, and the clamping section includes body of rod A and two clamp clips, described in two
Clamp clip is fixedly installed on the two sides of the bottom of body of rod A, is connected between two clamp clips by fastening bolt D, and the screw includes
Body of rod B and driver bit, the driver bit are fixedly installed on the bottom of body of rod B and between two clamp clips, the body of rod B
It slides up and down and is set in body of rod A, fastening bolt E, the fastening bolt E and the body of rod B matching are provided on the outside of the body of rod A
It closes, the body of rod A is connect through support plate and with support plate thread.
The body of rod A can slowly be moved up and down in support plate by spiral way, be advantageous to take nail process
In dynamics stablize.When taking nail, body of rod B is moved down relative to body of rod A first, so that driver bit is from two clamp clip bottoms
Expose, match with the screw terminal of bone nail, then screw fastening bolt E, fix body of rod B relative to body of rod A, rotates body of rod A,
Bone nail is screwed out into suitable length so that clamp clip is put into screw terminal lower part, fastening bolt E is unscrewed, by body of rod A relative to body of rod B
To backspin, clamp clip is made to clamp the screw main body of screw terminal lower part, screws fastening bolt D to clamp screw, then screw
Fastening bolt E fixes body of rod B relative to body of rod A, rotates body of rod A upwards, to complete to take nail.
Head of screw is fixed by driver bit during this, and the lower head of screw is clamped piece and clamps, so
Screw is well secured, it is therefore prevented that the appearance of stripped thread.
It is provided with vertical square prism on the outside of the body of rod B, the side of fluted C and body of rod B are set on the inside of the body of rod A
Shape prism matches.
Because artificial rotation process is body of rod A, and is contacted with screw including driver bit during screwing out screw
And clamp clip, so driver bit will also give screw certain twisting resistance, that is, body of rod B needs to give twisting resistance, in this way
The rotation of body of rod A can be transferred to body of rod B well by the cooperation of vertical square prism protrusion Yu groove C, and to fastening bolt
The requirement of E is only prevented from body of rod B and moves up and down relative to body of rod A, more safe and reliable in this way.
The beneficial effects of the present invention are: the bracket of (1) nail-fetching device is by turntable, line slide rail, sliding block and is articulated with sliding block
Support rod realize screwdriver and any angle can be adjusted on bracket, the bone nail of screwdriver and any angle can be made to keep
On the same line, efficiently solve bracket not can guarantee screwdriver and multi-angle bone nail but in straight line in conjunction with screwdriver
The problem of, considerably increase the probability of bone nail taking-up；(2) it because of the use of bracket, and is ok between all parts on bracket
Realize the fixation of position after adjusting, it is only necessary to exert oneself to select screwdriver from support plate can be realized to take nail, efficiently solve
Limitation of operator's operation level to nail success rate is taken, realizes that anyone can smooth operation；(3) nail is taken not to be related in the process
It is low in cost to electric element, it can use in any case, convenient and simple raising success rate.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is the combining structure schematic diagram of support rod, sliding block, line slide rail and arc block in Fig. 1；
Fig. 3 is the Longitudinal cross section schematic of Fig. 1 turntable；
Fig. 4 is the structure enlargement diagram of screwdriver in Fig. 1；
In figure: 1, screwdriver 11, clamping section 111, body of rod A 112, clamp clip 113, fastening bolt D 114, fastening spiral shell
Bolt E 12, screw 121, body of rod B 102, driver bit 2, bracket 21, fixed frame 211, upper semisection 212, lower semisection
2121, fastening bolt C 22, turntable 23, line slide rail 24, sliding block 241, fastener 25, support rod 26, support plate 27,
Arc block 271, fastening bolt A.
Specific embodiment
The present invention is described further below in conjunction with drawings and examples.
Embodiment 1:
As shown in Figure 1 to 4, a kind of extractor for bone-pin for four limbs of the present invention, including screwdriver 1 and bracket
2, the main body periphery of the screwdriver 1 is provided with external screw thread, and bottom is provided with driver bit 102, and the bracket 2 includes fixing
Frame 21, turntable 22, line slide rail 23, sliding block 24, support rod 25 and support plate 26, the fixed frame 21 are the frame of front and back hollow out
Frame, the center of top of the fixed frame 21 is horizontally disposed turntable 22, and the periphery of the turntable 22 and the top of fixed frame 21 are solid
Fixed connection, there are two parallel line slide rails 23 for the radial direction setting of the turntable 22, and the line slide rail 23 is along turntable 22
Diametrical direction setting and both side ends and the inner peripheral surface of turntable 22 be slidably connected, slided between two line slide rails 23
There are two sliding block 24, the top of each sliding block 24 is hinged with a support rod 25 for setting, two support rods 25 it is another
One end is fixedly connected on the bottom of support plate 26, opens up a through-hole in the support plate 26 between two support rods 25, described logical
It is equipped with internal screw thread in hole and is matched with the external screw thread of screwdriver 1.
The bracket 2 is fixed and supported for entire extractor for bone-pin, and fixed frame 21 is placed in plane, required to take
The physical feeling (leg or arm) of nail is put into wherein, and screwdriver 1 can rotate in support plate, in this way can be relative to people
Body is slowly separate and close, for taking slow nail pulling, support rod 25 outward during nail to be articulated on sliding block 24, can make to prop up
Strut 25 is swung in space relative to sliding block 24, and sliding block 24 can be slided along line slide rail 23, is also convenient for changing and is taken nail position
It sets, line slide rail 23 can cooperate the support rod 25 that can be swung in the radial direction in any of turntable 22, when taking bone nail,
So that the screwdriver 1 on support rod 25 is adapted to the bone nail of any angle placement, guarantee that bone nail and screwdriver 1 are maintained at one
On straight line.
It is provided with raised A on the inside of the turntable 22, bridges an arc block between the forward end of two line slide rails 23
27, an arc block 27 is also bridged between the rear end end of two line slide rails 23, and the outside of the arc block 27 is provided with recessed
Slot A, the groove A are matched with protrusion A.
The both ends end of two line slide rails 23, which bridges, arc block 27, so that the distance between two line slide rails 23 are more
It is fixed, be conducive to the stable structure of entire nail-fetching device.
The top of the arc block 27 is additionally provided with fastening bolt A271, and the fastening bolt A271 and turntable 22 match
It closes.
The fastening bolt A271 penetrates through groove A, and acts on the raised A inside groove A, screws fastening bolt A271 i.e.
Raised A can be fixed relative to groove A, according to the required position for taking bone nail and angle, adjust line slide rail 23 relative to turntable
Fixation of the line slide rail 23 relative to turntable 22 after adjusting, is completed by screwing fastening bolt A271 in 22 position.
Two 24 opposite sides of sliding block are the opposite concave arc of opening, and the screwdriver 1 is located at concave arc and is constituting space just
Top.
The opposite concave arc of two sliding blocks 24 constitutes a border circular areas, and screwdriver 1 is located at the surface of border circular areas, makes
Nail must be taken unobscured, conveniently take nail.
The side of the sliding block 24 is provided with raised B, and fluted B is arranged in two 23 opposite sides of line slide rail, described
Raised B is matched with groove B.
It is provided with fastener 241 at the top of the sliding block 24 to match with line slide rail 23, the fastener 241 includes L-type
Bending and fastening bolt B, the L-type bending include orthogonal vertical arm and horizontal arm, and the vertical arm of the L-type bending is hung down
Directly be fixed on the top of sliding block 24, its horizontal arm is arranged in parallel in right above the top of line slide rail 23, the fastening bolt B is passed through
It wears the horizontal arm of L-type bending and cooperates with line slide rail 23.
Fastening bolt B is located at the top of line slide rail 23, when being screwed down fastening bolt B, so that sliding block 24 and straight line
Sliding rail 23 contacted in the vertical plane where fastening bolt B it is closer, by increase frictional force, realize sliding block 25 relative to straight line
The fixation of sliding rail 23.
The fixed frame 21 includes upper semisection 211 and lower semisection 212, and the lower semisection 212 is the U-type groove of opening upwards,
The two-arm end of the U-type groove is straight up and two-arm is open-topped hollow structure, and the bottom of the upper semisection 211 is removable
In the two-arm of the insertion lower semisection 212 unloaded, the top center of the upper semisection 211 is fixedly connected with turntable 22, the lower semisection
It is provided with fastening bolt C2121 on the outside of 212 U-type groove two-arm, the fastening bolt C2121 is matched with upper semisection 211.
When being put into inside lower semisection 212 in use, needs are taken and follow closely position, then the bottom of upper semisection 211 is put respectively
In the U-type groove two-arm for entering two lower semisections 212, good position is adjusted, enables turntable 22 close to taking at nail, by tightening fastening
Bolt C2121 is fixed by upper semisection 211 and lower semisection 212.
The screwdriver 1 includes clamping section 11 and screw 12, and the clamping section 11 includes body of rod A111 and two clampings
Piece 112, two clamp clips 112 are fixedly installed on the two sides of the bottom of body of rod A111, pass through fastening spiral shell between two clamp clips 112
Bolt D113 connection, the screw 12 include body of rod B121 and driver bit 102, and the driver bit 102 is fixedly installed on bar
The bottom of body B121 and between two clamp clips 112, the body of rod B121, which is slided up and down, to be set in body of rod A111, the bar
It is provided with fastening bolt E114 on the outside of body A111, the fastening bolt E114 is matched with body of rod B121, and the body of rod A111 is passed through
Perforating branches fagging 26 is simultaneously threadedly coupled with support plate 26.
The body of rod A111 can slowly be moved up and down in support plate 26 by spiral way, be advantageous to take nail
Dynamics in the process is stablized.When taking nail, body of rod B121 is moved down relative to body of rod A111 first, so that driver bit 102
Expose from two clamp clips, 112 bottom, matches with the screw terminal of bone nail, then screw fastening bolt E114, make body of rod B121 phase
Body of rod A111 is fixed, body of rod A111 is rotated, bone nail is screwed out into suitable length so that clamp clip 112 is put under screw terminal
Portion unscrews fastening bolt E114, so that clamp clip 112 is clamped screw terminal lower part to backspin relative to the body of rod B121 body of rod A111
Screw main body, screw fastening bolt D113 to clamp screw, then screw fastening bolt E114, make body of rod B121 again
It is fixed relative to body of rod A111, rotates body of rod A111 upwards, to complete to take nail.
Head of screw is fixed by driver bit 102 during this, and the lower head of screw is clamped piece 112 and presss from both sides
Tightly, so screw is well secured, it is therefore prevented that the appearance of stripped thread.
It is provided with vertical square prism on the outside of the body of rod B121, fluted C and bar are set on the inside of the body of rod A111
The square prism of body B121 matches.
Because artificial rotation process is body of rod A111, and is contacted with screw including screw during screwing out screw
Cutter head 102 and clamp clip 112, so driver bit 102 will also give screw certain twisting resistance, that is, body of rod B121 needs
Twisting resistance is given, the rotation of body of rod A111 can be transferred to by the cooperation of square prism protrusion vertical in this way and groove C well
Body of rod B121, and the requirement to fastening bolt E114 is only prevented from body of rod B121 and moves up and down relative to body of rod A111, in this way
It is more safe and reliable.
To sum up, which not only ensure that stable operation, and the operation for not limiting operation object is horizontal, and because spiral shell
Silk knife 1 can be adjusted at will relative to the position of bone nail, realize that screwdriver 1 and bone nail on same straight line, therefore can use any side
Smooth taking-up to the bone nail and guarantee bone nail as much as possible of insertion, and the present invention does not need electric element, it is at low cost
It is honest and clean, the application prospect with fabulous market.
The above is the embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize invention description
Equivalent structure or equivalent flow shift made by book and accompanying drawing content is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (9)
1. a kind of extractor for bone-pin for four limbs, it is characterised in that: including screwdriver and bracket, outside the main body of the screwdriver
It is provided with external screw thread week, bottom is provided with driver bit, and the bracket includes fixed frame, turntable, line slide rail, sliding block, branch
Strut and support plate, the fixed frame are the frame of front and back hollow out, and the center of top of the fixed frame is horizontally disposed turntable, institute
It states and is fixedly connected at the top of the periphery and fixed frame of turntable, there are two parallel straight lines to slide for the radial direction setting of the turntable
Rail, diametrical direction setting and the inner peripheral surface of both side ends and turntable of the line slide rail along turntable are slidably connected, two institutes
Sliding setting is stated between line slide rail there are two sliding block, a support rod is hinged at the top of each sliding block, described in two
The other end of support rod is fixedly connected on the bottom of support plate, opens up a through-hole, institute in the support plate between two support rods
It states and is equipped with internal screw thread in through-hole and is matched with the external screw thread of screwdriver.
2. the extractor for bone-pin according to claim 1 for four limbs, it is characterised in that: be provided on the inside of the turntable convex
Play A, bridge an arc block between the forward end of two line slide rails, between the rear end end of two line slide rails also across
An arc block is connect, fluted A is arranged in the outside of the arc block, and the groove A is matched with protrusion A.
3. the extractor for bone-pin according to claim 2 for four limbs, it is characterised in that: the top of the arc block is also set
It is equipped with fastening bolt A, the fastening bolt A is matched with turntable.
4. the extractor for bone-pin according to claim 1 for four limbs, it is characterised in that: the two sliding block opposite sides are
Be open opposite concave arc, and the screwdriver is located at the surface that concave arc constitutes space.
5. a kind of extractor for bone-pin for four limbs according to claim 1, it is characterised in that: the side of the sliding block is set
It is equipped with raised B, fluted B is arranged in the two line slide rail opposite sides, and the protrusion B is matched with groove B.
6. the extractor for bone-pin according to claim 5 for four limbs, it is characterised in that: the slider top is provided with tightly
Firmware is matched with line slide rail, and the fastener includes L-type bending and fastening bolt B, and the L-type bending includes being mutually perpendicular to
Vertical arm and horizontal arm, the vertical arm of L-type bending is perpendicularly fixed at the top of sliding block, its horizontal arm is arranged in parallel in directly
Right above the top of line sliding rail, the fastening bolt B runs through the horizontal arm of L-type bending and cooperates with line slide rail.
7. the extractor for bone-pin according to claim 1 for four limbs, it is characterised in that: the fixed frame includes upper semisection
And lower semisection, the lower semisection are the U-type groove of opening upwards, the two-arm end of the U-type groove is straight up and two-arm is top
The hollow structure of opening, the bottom of the upper semisection are removably inserted into the two-arm of lower semisection, in the top of the upper semisection
Between be fixedly connected with turntable, be provided with fastening bolt C, the fastening bolt C and upper half on the outside of the U-type groove two-arm of the lower semisection
Section matches.
8. the extractor for bone-pin according to claim 1 for four limbs, it is characterised in that: the screwdriver includes clamping section
And screw, the clamping section include body of rod A and two clamp clips, two clamp clips are fixedly installed on the bottom of body of rod A
Two sides are connected by fastening bolt D between two clamp clips, and the screw includes body of rod B and driver bit, the driver bit
It is fixedly installed on the bottom of body of rod B and between two clamp clips, the body of rod B, which is slided up and down, to be set in body of rod A, the bar
Be provided with fastening bolt E on the outside of body A, the fastening bolt E is matched with body of rod B, the body of rod A run through support plate and with support
Plate is threadedly coupled.
9. the extractor for bone-pin according to claim 8 for four limbs, it is characterised in that: be provided on the outside of the body of rod B
Vertical square prism, the square prism that fluted C and body of rod B is arranged in the inside body of rod A match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266976.8A CN109199567B (en) | 2018-10-29 | 2018-10-29 | Bone nail extractor for four limbs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266976.8A CN109199567B (en) | 2018-10-29 | 2018-10-29 | Bone nail extractor for four limbs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109199567A true CN109199567A (en) | 2019-01-15 |
| CN109199567B CN109199567B (en) | 2021-02-12 |
Family
ID=64997499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811266976.8A Active CN109199567B (en) | 2018-10-29 | 2018-10-29 | Bone nail extractor for four limbs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109199567B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456206A (en) * | 2021-07-06 | 2021-10-01 | 皖南医学院第一附属医院（皖南医学院弋矶山医院） | Auxiliary intramedullary nail taking-out device for arm fracture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456206A (en) * | 2021-07-06 | 2021-10-01 | 皖南医学院第一附属医院（皖南医学院弋矶山医院） | Auxiliary intramedullary nail taking-out device for arm fracture |
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|---|---|
| CN109199567B (en) | 2021-02-12 |
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