CN109199567B - Bone nail extractor for four limbs - Google Patents
Bone nail extractor for four limbs Download PDFInfo
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- CN109199567B CN109199567B CN201811266976.8A CN201811266976A CN109199567B CN 109199567 B CN109199567 B CN 109199567B CN 201811266976 A CN201811266976 A CN 201811266976A CN 109199567 B CN109199567 B CN 109199567B
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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
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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
- A61B2017/564—Methods for bone or joint treatment
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Abstract
The invention relates to the technical field of medical equipment, in particular to a bone nail extractor for four limbs, which comprises a screwdriver and a support, wherein external threads are arranged on the periphery of the screwdriver, a screwdriver head is arranged at the bottom of the screwdriver, the support comprises a fixing frame, a rotary table, linear slide rails, sliding blocks, supporting rods and a supporting plate, the fixing frame is hollow in the front and back, the rotary table is arranged at the top of the fixing frame, two parallel linear slide rails are arranged in the radial direction of the rotary table, the end parts of two sides of each linear slide rail are in sliding connection with the inner circumferential surface of the rotary table, two sliding blocks are arranged between the two linear slide rails in a sliding mode, the top of each sliding block is hinged with one supporting rod, the other ends of the. The invention can ensure that anyone can operate the nail extractor by the support of the bracket, and the screwdriver can keep a straight line with the bone nail at any angle in the nail extracting process, thereby greatly improving the success rate of nail extraction.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a bone nail extractor for four limbs.
Background
For the treatment of fracture, the bone nail is usually placed into the fracture part clinically to promote the fracture to recover the normal condition, the common bone nail is made of metal products, the bone nail is difficult to take out after the fracture patient heals because the bone nail hinders the growth of soft tissues and blood vessels at the fixed part in vivo for a long time, so that the local osteoporosis is caused, the bone nail is easy to slip and break when the fracture patient is healed, the bone nail is difficult to take out, the bone nail is easy to slip and break, the bone nail is easy to cause the secondary pain and injury to the patient when the bone nail is retreated, the difficulty is increased for the nail taking work of medical staff, in order to prevent the slip and the break of the bone nail in the bone nail taking out process, the stability of the nail taking device is necessarily kept, the nail taking device and the bone nail keep a straight line, the swing of the nail taking out device is avoided, the uneven stress of a tail groove of the bone nail is avoided, the stable operation and the, the bone nail extractor is not operated by any doctor, the workload of medical staff is effectively reduced and the stability is improved by means of a support structure in the prior bone nail extractor, but because the positions and the angles of bone nails in bones are also various, the support schemes have no way to effectively deal with the taking out of multi-angle bone nails, still need to depend on manual work, the effect is not ideal, and the technical scheme that any medical staff can operate and stably and smoothly take out any angle bone nails is urgently needed.
Disclosure of Invention
The invention aims to solve the problems, and provides a bone nail extractor for four limbs, which can realize that the extractor and a bone nail are in the same straight line for the bone nails at any angle, greatly reduces the probability of nail breakage and thread slipping caused by force failure in the same straight line, increases the success rate of the operation, and meanwhile, the extractor is placed on a bracket, thereby greatly increasing the stability of the nail extracting process and being capable of being operated by any medical staff.
The technical scheme adopted by the invention for solving the technical problems is as follows: a bone nail extractor for four limbs comprises a screwdriver and a support, wherein external threads are arranged on the periphery of the screwdriver body, a screwdriver head is arranged at the bottom of the screwdriver, the support comprises a fixing frame, a rotary table, linear slide rails, sliders, support rods and a support plate, the fixing frame is a frame with front and back hollow parts, the rotary table is horizontally arranged in the center of the top of the fixing frame, the periphery of the rotary table is fixedly connected with the top of the fixing frame, the rotary table is provided with two parallel linear slide rails in the radial direction, the linear slide rails are arranged along the diameter direction of the rotary table, the end parts at two sides of the linear slide rails are slidably connected with the inner circumferential surface of the rotary table, two sliders are slidably arranged between the two linear slide rails, the top of each slider is hinged with one support rod, the other ends of the two support rods are, and an internal thread is arranged in the through hole and matched with the external thread of the screwdriver.
The support is used for fixed and support of whole bone nail extractor, place fixed frame in the plane, the health position (shank or arm) that need get the nail is put into wherein, the screwdriver can rotate in the backup pad, can keep away from slowly and be close to for the human body like this, be used for getting the nail in-process and slowly toward pulling out the nail, the bracing piece articulates on the slider, can make the bracing piece swing in the space for the slider, the slider can slide along linear slide rail, also conveniently change and get the nail position, linear slide rail can be on the arbitrary radial direction of carousel, the cooperation can wobbling bracing piece, when getting the bone nail, make the screwdriver on the bracing piece can adapt to the bone nail that arbitrary angle was placed, guarantee that bone nail and screwdriver keep on a straight line.
Among them, the preferred mode is:
the turntable is characterized in that a protrusion A is arranged on the inner side of the turntable, an arc-shaped block is bridged between the front end parts of the two linear slide rails, an arc-shaped block is also bridged between the rear end parts of the two linear slide rails, a groove A is arranged on the outer side of the arc-shaped block, and the groove A is matched with the protrusion A.
The both ends tip of two linear slide rail has all the cross-over connection to have the arc piece for distance between two linear slide rail is more fixed, is favorable to the stable in structure of whole nail ware of getting.
The top of the arc-shaped block is also provided with a fastening bolt A, and the fastening bolt A is matched with the turntable.
The fastening bolt A penetrates through the groove A and acts on the protrusion A inside the groove A, the protrusion A can be fixed relative to the groove A by screwing the fastening bolt A, the position of the linear sliding rail relative to the rotary table is adjusted according to the position and the angle of the bone nail required to be taken, and after the adjustment is completed, the linear sliding rail is fixed relative to the rotary table by screwing the fastening bolt A.
The opposite sides of the two sliding blocks are concave arcs with opposite openings, and the screwdriver is located right above a space formed by the concave arcs.
Two the relative concave arc of slider constitutes a circular region, and the screwdriver is located circular region directly over for get the nail field of vision and open, conveniently get the nail.
The side of the sliding block is provided with a protrusion B, one side of the two linear sliding rails opposite to each other is provided with a groove B, and the protrusion B is matched with the groove B.
The slider top is provided with the fastener and cooperatees with linear slide rail, the fastener includes that the L type is buckled and fastening bolt B, the L type is buckled and is included mutually perpendicular's vertical arm and horizontal arm, the vertical arm vertical fixation who the L type is buckled, its horizontal arm parallel arrangement in the top of linear slide rail directly over the slider, fastening bolt B runs through the horizontal arm that the L type was buckled and cooperates with linear slide rail.
The fastening bolt B is located the top of linear slide rail, when screwing up fastening bolt B downwards for the slider contacts inseparabler with linear slide rail in the vertical face at fastening bolt B place, through increasing frictional force, realizes the fixed of slider for linear slide rail.
The fixed frame comprises a first section and a second section, the second section is a U-shaped groove with an upward opening, two vertical arms of two arm ends of the U-shaped groove are of a hollow structure with an open top, the bottom of the first section can be detachably inserted into the two arms of the second section, a turntable is fixedly connected to the middle of the top of the first section, and fastening bolts C are arranged on the outer sides of the two arms of the U-shaped groove of the second section and matched with the first section.
When using, will need to get the nail position and put into half section down inside, then put into two U type groove two arms of half section down respectively with the bottom of half section, adjust the position for the carousel can be pressed close to and gets nail department, and half section will be first fixed with half section down through screwing up fastening bolt C.
The screwdriver comprises a clamping portion and a screw portion, the clamping portion comprises a rod body A and two clamping pieces, the two clamping pieces are fixedly arranged on two sides of the bottom of the rod body A and connected through a fastening bolt D, the screw portion comprises a rod body B and a screwdriver head, the screwdriver head is fixedly arranged at the bottom of the rod body B and located between the two clamping pieces, the rod body B is arranged in the rod body A in a sliding mode from top to bottom, a fastening bolt E is arranged on the outer side of the rod body A, the fastening bolt E is matched with the rod body B, and the rod body A penetrates through the supporting plate and is in threaded connection with the supporting plate.
The body of rod A can be through the slow reciprocating of spiral mode in the backup pad, and the dynamics that very is favorable to getting the nail in-process is stable. When the nail is taken, the rod body B is moved downwards relative to the rod body A at first, so that the screwdriver head is exposed from the bottoms of the two clamping pieces and matched with the screw head of the bone nail, then the fastening bolt E is screwed, the rod body B is fixed relative to the rod body A, the rod body A is rotated, the bone nail is screwed out to a proper length so that the clamping pieces can be placed at the lower part of the screw head, the fastening bolt E is unscrewed, the rod body A is screwed downwards relative to the rod body B, the clamping pieces clamp the screw body at the lower part of the screw head, the fastening bolt D is screwed so as to clamp the screw, then the fastening bolt E is screwed, the rod body B is fixed relative to the rod body A again, and the.
The head of the screw is fixed by the screwdriver head in the process, and the lower part of the head of the screw is clamped by the clamping piece, so that the screw is well fixed, and the occurrence of sliding threads is prevented.
The outer side of the rod body B is provided with a vertical square prism, and the inner side of the rod body A is provided with a groove C matched with the square prism of the rod body B.
Because at the in-process of back-out screw, the artificial rotatory operation be body of rod A, and include screwdriver head and the tight piece of clamp with the screw contact, so the screwdriver head also need give the certain torsional force of screw, also be body of rod B need give torsional force, vertical square prism protruding and recess C's cooperation like this can be well with body of rod A's rotation transmission to body of rod B, and the requirement to fastening bolt E only prevents body of rod B and reciprocates for body of rod A, safe and reliable more like this.
The invention has the beneficial effects that: (1) the support of the nail extractor realizes that the screwdriver can be adjusted at any angle on the support through the rotary disc, the linear slide rail, the slide block and the support rod hinged to the slide block, so that the screwdriver and bone nails at any angle can be kept on the same straight line, the problem that the combination of the support and the screwdriver cannot ensure that the screwdriver and the multi-angle bone nails are in the same straight line is effectively solved, and the probability of taking out the bone nails is greatly increased; (2) because the support is used, and the positions of all parts on the support can be fixed after adjustment, the screw can be taken out only by forcibly selecting the screwdriver from the support plate, so that the problem that the operation level of an operator limits the success rate of taking the screw is effectively solved, and anyone can smoothly operate the screw; (3) the electric element is not involved in the nail taking process, the cost is low, the nail taking device can be used under any condition, and the success rate is conveniently and simply improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a combined structure of the support rod, the slide block, the linear slide rail and the arc block in FIG. 1;
FIG. 3 is a schematic longitudinal cross-sectional view of the turntable of FIG. 1;
FIG. 4 is an enlarged view of the screwdriver of FIG. 1;
in the figure: 1. the screwdriver 11, the clamping portion 111, the rod body a 112, the clamping piece 113, the fastening bolt D114, the fastening bolt E12, the screw portion 121, the rod body B102, the screwdriver bit 2, the bracket 21, the fixing frame 211, the upper half 212, the lower half 2121, the fastening bolt C22, the rotating disc 23, the linear slide rail 24, the slider 241, the fastener 25, the support rod 26, the support plate 27, the arc-shaped block 271 and the fastening bolt a.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example 1:
as shown in fig. 1 to 4, the bone screw extractor for four limbs according to the present invention comprises a screw driver 1 and a bracket 2, wherein the screw driver 1 has an external thread on the outer circumference thereof, and a screw driver head 102 is disposed at the bottom thereof, the bracket 2 comprises a fixed frame 21, a rotary table 22, linear slide rails 23, sliders 24, a support rod 25 and a support plate 26, the fixed frame 21 is a frame with a front and a rear hollow, the rotary table 22 is horizontally disposed at the center of the top of the fixed frame 21, the outer circumference of the rotary table 22 is fixedly connected with the top of the fixed frame 21, two parallel linear slide rails 23 are disposed in the radial direction of the rotary table 22, the linear slide rails 23 are disposed in the radial direction of the rotary table 22, and the two ends of the linear slide rails 23 are slidably connected with the inner circumference of the rotary table 22, two sliders 24 are slidably disposed between the linear, the other ends of the two support rods 25 are fixedly connected to the bottom of the support plate 26, a through hole is formed in the support plate 26 between the two support rods 25, and internal threads are formed in the through hole and matched with external threads of the screwdriver 1.
The support 2 is used for fixing and supporting the whole bone nail extractor, the fixing frame 21 is placed on a plane, a body part (legs or arms) needing to be nailed is placed in the fixing frame, the screwdriver 1 can rotate in the supporting plate, and therefore the fixing frame can be slowly far away from and close to a human body and is used for slowly pulling nails outwards in the nail taking process, the supporting rod 25 is hinged to the sliding block 24, the supporting rod 25 can swing in space relative to the sliding block 24, the sliding block 24 can slide along the linear sliding rail 23, the nail taking position can be conveniently replaced, the linear sliding rail 23 can be arranged in any radial direction of the rotating disc 22 and can be matched with the supporting rod 25 which can swing, when the bone nails are taken, the screwdriver 1 on the supporting rod 25 can adapt to the bone nails placed at any angle, and the bone nails and the screwdriver 1 are guaranteed to be kept on the.
The inner side of the turntable 22 is provided with a protrusion A, an arc-shaped block 27 is bridged between the front end parts of the two linear sliding rails 23, an arc-shaped block 27 is also bridged between the rear end parts of the two linear sliding rails 23, a groove A is arranged on the outer side of the arc-shaped block 27, and the groove A is matched with the protrusion A.
The both ends tip of two linear slide rail 23 all the cross-over connection has arc piece 27 for distance between two linear slide rail 23 is more fixed, is favorable to the stable in structure of whole nail ware of getting.
The top of the arc block 27 is also provided with a fastening bolt A271, and the fastening bolt A271 is matched with the turntable 22.
The fastening bolt A271 penetrates through the groove A and acts on the protrusion A in the groove A, the protrusion A can be fixed relative to the groove A by screwing the fastening bolt A271, the position of the linear sliding rail 23 relative to the rotary table 22 is adjusted according to the position and the angle of the bone nail to be taken, and after the adjustment is completed, the linear sliding rail 23 is fixed relative to the rotary table 22 by screwing the fastening bolt A271.
The opposite sides of the two sliding blocks 24 are concave arcs with opposite openings, and the screwdriver 1 is positioned right above a concave arc forming space.
The opposite concave arcs of the two sliding blocks 24 form a circular area, and the screwdriver 1 is positioned right above the circular area, so that the nail taking visual field is wide, and the nail taking is convenient.
The side edge of the sliding block 24 is provided with a protrusion B, one side of the two linear sliding rails 23 opposite to each other is provided with a groove B, and the protrusion B is matched with the groove B.
The slider 24 top is provided with fastener 241 and matches with linear slide rail 23, fastener 241 includes that the L type is buckled and fastening bolt B, the L type is buckled and is included mutually perpendicular's vertical arm and horizontal arm, the vertical arm vertical fixation that the L type was buckled, its horizontal arm parallel arrangement in the top of linear slide rail 23 directly over slider 24, fastening bolt B runs through the horizontal arm that the L type was buckled and cooperates with linear slide rail 23.
The fastening bolt B is located above the linear slide rail 23, when the fastening bolt B is tightened down, the slider 24 and the linear slide rail 23 are brought into closer contact in the vertical plane in which the fastening bolt B is located, and by increasing the friction force, the slider 25 is fixed relative to the linear slide rail 23.
Fixed frame 21 includes first half section 211 and second half section 212, second half section 212 is the ascending U type groove of opening, the vertical upwards and both arms of both arms end in U type groove are open-top's hollow structure, the bottom detachable of first half section 211 inserts in second half section 212's both arms, fixedly connected with carousel 22 in the middle of the top of first half section 211, second half section 212's the U type groove both arms outside is provided with fastening bolt C2121, fastening bolt C2121 cooperatees with first half section 211.
When using, will need to get the nail position and put into half section 212 inside down, then put into two U type groove two arms of half section 212 down with the bottom of half section 211 respectively, the position has been adjusted for carousel 22 can be pressed close to and get nail department, and half section 211 and half section 212 are fixed down through screwing up fastening bolt C2121.
Screwdriver 1 includes clamping part 11 and screw portion 12, clamping part 11 includes the body of rod A111 and two clamp pieces 112, two clamp pieces 112 and fix and set up in the bottom both sides of the body of rod A111, connect through fastening bolt D113 between two clamp pieces 112, screw part 12 includes the body of rod B121 and screwdriver bit 102, screwdriver bit 102 is fixed to be set up in the bottom of the body of rod B121 and is located two and press from both sides between the piece 112, the body of rod B121 slides from top to bottom and sets up in the body of rod A111, the body of rod A111 outside is provided with fastening bolt E114, fastening bolt E114 cooperatees with the body of rod B121, body of rod A111 runs through backup pad 26 and with backup pad 26 threaded connection.
The rod body A111 can slowly move up and down in the supporting plate 26 in a spiral mode, and the force stability in the nail taking process is very facilitated. When taking out the nail, firstly, the rod body B121 moves downwards relative to the rod body A111, so that the screwdriver head 102 is exposed from the bottoms of the two clamping pieces 112 and matched with the screw head of the bone nail, then the fastening bolt E114 is screwed, the rod body B121 is fixed relative to the rod body A111, the rod body A111 is rotated, the bone nail is screwed out to a proper length so that the clamping pieces 112 are placed at the lower part of the screw head, the fastening bolt E114 is unscrewed, the rod body A111 is screwed downwards relative to the rod body B121, the clamping pieces 112 clamp the screw body at the lower part of the screw head, the fastening bolt D113 is screwed to clamp the screw, then the fastening bolt E114 is screwed, the rod body B121 is fixed relative to the rod body A111, and the rod body A111 is rotated.
In the process, the head of the screw is fixed by the screwdriver head 102, and the lower part of the head of the screw is clamped by the clamping piece 112, so that the screw is well fixed, and the occurrence of sliding is prevented.
The utility model discloses a pole body B121, including body of rod A111, body of rod B121, the body of rod A111 is provided with the square prism of vertical, the recess C, the square prism phase-match of the body of rod B121.
Because in the process of unscrewing the screw, the rod body a111 is manually rotated, and the contact with the screw comprises the screwdriver head 102 and the clamping sheet 112, the screwdriver head 102 also gives a certain torsion force to the screw, that is, the rod body B121 needs to give the torsion force, so that the matching of the vertical square prism protrusion and the groove C can well transmit the rotation of the rod body a111 to the rod body B121, and the requirement on the fastening bolt E114 is only to prevent the rod body B121 from moving up and down relative to the rod body a111, which is safer and more reliable.
In conclusion, the bracket 2 not only ensures stable operation without limiting the operation level of an operation object, but also can ensure that the bone nail inserted in any direction can be taken out as far as possible because the position of the screwdriver 1 relative to the bone nail can be adjusted at will and the screwdriver 1 and the bone nail are in the same straight line, and the bracket has the advantages of no need of electric elements, low cost and good market application prospect.
The above description is an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications made by the equivalent structures or equivalent processes in the specification and drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A bone screw extractor for a limb, characterized by: comprises a screwdriver and a bracket, wherein the periphery of the main body of the screwdriver is provided with external threads, the bottom of the main body is provided with a screwdriver head, the support comprises a fixed frame, a rotary table, a linear slide rail, a slide block, a support rod and a support plate, the fixed frame is a frame with a front hollow part and a rear hollow part, the center of the top of the fixed frame is horizontally provided with a turntable, the periphery of the turntable is fixedly connected with the top of the fixed frame, two parallel linear sliding rails are arranged in the radial direction of the rotary table, the linear sliding rails are arranged along the diameter direction of the rotary table, the end parts of the two sides of the linear sliding rails are connected with the inner circumferential surface of the rotary table in a sliding manner, two sliding blocks are arranged between the two linear sliding rails in a sliding manner, the top of each sliding block is hinged with a supporting rod, the other ends of the two supporting rods are fixedly connected with the bottom of the supporting plate, a through hole is formed in the supporting plate between the two supporting rods, and internal threads are formed in the through hole and matched with external threads of the screwdriver.
2. A bone screw extractor for limbs according to claim 1, wherein: the turntable is characterized in that a protrusion A is arranged on the inner side of the turntable, an arc-shaped block is bridged between the front end parts of the two linear slide rails, an arc-shaped block is also bridged between the rear end parts of the two linear slide rails, a groove A is arranged on the outer side of the arc-shaped block, and the groove A is matched with the protrusion A.
3. A bone screw extractor for limbs according to claim 2, wherein: the top of the arc-shaped block is also provided with a fastening bolt A, and the fastening bolt A is matched with the turntable.
4. A bone screw extractor for limbs according to claim 1, wherein: the opposite sides of the two sliding blocks are concave arcs with opposite openings, and the screwdriver is located right above a space formed by the concave arcs.
5. A bone screw extractor for limbs according to claim 1, wherein: the side of the sliding block is provided with a protrusion B, one side of the two linear sliding rails opposite to each other is provided with a groove B, and the protrusion B is matched with the groove B.
6. A bone screw extractor for limbs according to claim 5, wherein: the slider top is provided with the fastener and cooperatees with linear slide rail, the fastener includes that the L type is buckled and fastening bolt B, the L type is buckled and is included mutually perpendicular's vertical arm and horizontal arm, the vertical arm vertical fixation who the L type is buckled, its horizontal arm parallel arrangement in the top of linear slide rail directly over the slider, fastening bolt B runs through the horizontal arm that the L type was buckled and cooperates with linear slide rail.
7. A bone screw extractor for limbs according to claim 1, wherein: the fixed frame comprises a first section and a second section, the second section is a U-shaped groove with an upward opening, two vertical arms of two arm ends of the U-shaped groove are of a hollow structure with an open top, the bottom of the first section can be detachably inserted into the two arms of the second section, a turntable is fixedly connected to the middle of the top of the first section, and fastening bolts C are arranged on the outer sides of the two arms of the U-shaped groove of the second section and matched with the first section.
8. A bone screw extractor for limbs according to claim 1, wherein: the screwdriver comprises a clamping portion and a screw portion, the clamping portion comprises a rod body A and two clamping pieces, the two clamping pieces are fixedly arranged on two sides of the bottom of the rod body A and connected through a fastening bolt D, the screw portion comprises a rod body B and a screwdriver head, the screwdriver head is fixedly arranged at the bottom of the rod body B and located between the two clamping pieces, the rod body B is arranged in the rod body A in a sliding mode from top to bottom, a fastening bolt E is arranged on the outer side of the rod body A, the fastening bolt E is matched with the rod body B, and the rod body A penetrates through the supporting plate and is in threaded connection with the supporting plate.
9. A bone screw extractor for limbs according to claim 8, wherein: the body of rod B outside is provided with vertical square prism, body of rod A inboard is provided with recess C, recess C and the square prism phase-match of the body of rod B.
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 CN109199567A (en) | 2019-01-15 |
| CN109199567B true CN109199567B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811266976.8A Active CN109199567B (en) | 2018-10-29 | 2018-10-29 | Bone nail extractor for four limbs |
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| CN (1) | CN109199567B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114431946A (en) * | 2021-07-06 | 2022-05-06 | 皖南医学院第一附属医院（皖南医学院弋矶山医院） | Intramedullary nail extraction method |
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| CN203089356U (en) * | 2013-01-16 | 2013-07-31 | 于跃强 | Nail taking device for orthopedics |
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| CN107496022B (en) * | 2017-10-18 | 2019-07-09 | 李国华 | A kind of operation device for fetching nail for orthopaedic medical treatment |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203089356U (en) * | 2013-01-16 | 2013-07-31 | 于跃强 | Nail taking device for orthopedics |
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