CN108771565A - A kind of orthopaedics screw clamping mechanism - Google Patents
A kind of orthopaedics screw clamping mechanism Download PDFInfo
- Publication number
- CN108771565A CN108771565A CN201810743951.6A CN201810743951A CN108771565A CN 108771565 A CN108771565 A CN 108771565A CN 201810743951 A CN201810743951 A CN 201810743951A CN 108771565 A CN108771565 A CN 108771565A
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- clamping cylinder
- semicircle
- semicircle clamping
- screw
- cylinder
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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)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to bone surgery appliance technologies, in particular a kind of orthopaedics screw clamping mechanism, including semicircle clamping cylinder I, semicircle clamping cylinder II and hinge, the semicircle clamping cylinder I, semicircle clamping cylinder II one end be rotatablely connected by hinge, the semicircle clamping cylinder I, semicircle clamping cylinder II outer surface be mounted on along its axially vertical clamping limb, the semicircle clamping cylinder I, semicircle clamping cylinder II inner surface offer anti-skid chequer, through-hole is offered on the semicircle clamping cylinder I and/or semicircle clamping cylinder II, activity in the through hole is inserted with check lock lever.The present invention will not block surgical field of view when performing the operation, surgical procedure will not be caused to interfere, anti-skid chequer, check lock lever prevent from generating sliding when fixing screws rotate, it will not cause toner screw or deviation, the tight lock part fatigue that avoids holding with a firm grip for a long time caused by clamping limb generates loosening, it influences fixing screws to screw in, saves operating time, reduce the operation difficulty of medical worker.
Description
Technical field
The present invention relates to bone surgery appliance technology, specially a kind of orthopaedics screw clamping mechanism.
Background technology
It is frequently necessary to use fixation when currently, being fixedly connected with the orthopaedics reseting fixture such as piece or fixed plate in bone surgery
Screw when being fixed using fixing screws, is gripped screw and is easy to fall off, lead to hand due to fixing screws small volume
Art time lengthening, and when fixing screws are tightened in rotation, grip the instrument of screw and screw is easy to skid, rotary course
In be easy to cause screw loosening offset direction, operation is time-consuming and laborious, considerably increases the difficulty of medical worker's surgical procedure.
As a kind of novel orthopaedics of Authorization Notice No. CN207236839U are clamped with screw clamping, including clamp handle, arc tong arm,
Cylinder, rotation clamping piece are pressed from both sides, the left and right clamp handle is hinged by hinged shaft, and the rear end of clamp handle is equipped with finger ring, hinged shaft front end
Clamp handle end is equipped with arc tong arm, and the end of arc tong arm is equipped with semicircular folder cylinder, rotation clamping piece is equipped in folder cylinder.This hair
Bright reasonable in design, easy to use, when operation, will not block surgical field of view, will not cause to interfere to surgical procedure,
Screw clamping is secured, and clamping piece is rotated when tightening screw to be rotated with screw, and toner screw or deviation will not be caused, and saved
Operating time, reduces the operation difficulty of medical worker.But said program there is problems：(1) since two press from both sides
The stretching degree of cylinder is limited by clamp handle opening angle, it is possible that being put into for different size fixing screws can be influenced, (2) medical matters
Personnel control the clamping to fixing screws using hand-held finger ring, be easy to cause fatigue for a long time, are loosened so as to cause clamping,
(3) it is connected since ball is rolled with folder cylinder inner wall, so the feelings for rotating clamping piece and Slipped bolt will be led to by once occurring loosening
Condition.
Invention content
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of orthopaedics screw clamping mechanism
Problem.The orthopaedics is easy to use with screw clamping mechanism, time saving and energy saving, saves operating time, reduces medical worker and twists
Fasten the operation difficulty of screw.
To achieve the above object, the present invention provides the following technical solutions：
A kind of orthopaedics screw clamping mechanism, including semicircle clamping cylinder I, semicircle clamping cylinder II and hinge, the semicircle
Clamping cylinder I, semicircle clamping cylinder II one end be rotatablely connected by hinge, the semicircle clamping cylinder I, semicircle clamping cylinder II appearance
Face is mounted on along its axially vertical clamping limb, the semicircle clamping cylinder I, semicircle clamping cylinder II inner surface offer it is anti-skidding
Line offers through-hole on the semicircle clamping cylinder I and/or semicircle clamping cylinder II, and activity in the through hole is inserted with check lock lever.
Preferably, the clamping limb includes flat segments and bending section, and the flat segments are separately mounted to semicircle clamping cylinder
I, the outer surface of semicircle clamping cylinder II, the bending section are fixed on the end of flat segments, on any one group in two groups of flat segments
Tight lock part is installed.
Preferably, the clamping limb is arranged close to the outer surface of the semicircle clamping cylinder I of hinge, semicircle clamping cylinder II.
Preferably, the clamping limb is mounted remotely from the outer surface of the semicircle clamping cylinder I of hinge, semicircle clamping cylinder II.
Preferably, the tight lock part includes thread barrel, and the both ends of the thread barrel are threaded with connecting rod I, described
The end of connecting rod I has offers the slot I for grafting protrusion, institute with its integrated protrusion, the side of the flat segments
The upper surface for stating flat segments offers slot II for grafting protrusion.
Preferably, the bending section is outside sweep, and is set with Anti-slip cover.
Preferably, the screw thread at the thread barrel both ends is the screw thread of reverse manner.
Preferably, magnet piece is installed in the slot I.
Compared with prior art, the beneficial effects of the invention are as follows：It is reasonable in design, it is easy to use, due to clamping
Arm and semicircle clamping cylinder I, II right angle setting of semicircle clamping cylinder, when operation, will not block surgical field of view, will not be to surgical procedure
It causes to interfere, anti-skid chequer is adapted with the screw thread on fixing screws surface, to fixing screws firm grip, half when tightening fixing screws
Circle clamping cylinder I, semicircle clamping cylinder II can together be rotated with fixing screws, and check lock lever is further prevented when fixing screws rotate
Sliding is generated, will not cause toner screw or deviation, tight lock part that can lock clamping limb and then be rotated again to clamping limb, make medical care
Personnel can solution let go hold with a firm grip for a long time to clamping limb caused by fatigue so that generate loosening, influence fixing screws precession
(going out), saves operating time, reduces the operation difficulty of medical worker.
Description of the drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the schematic top plan view of the embodiment of the present invention 1；
The schematic diagram that Fig. 3 is Fig. 2 semicircles clamping cylinder I of the present invention, semicircle clamping cylinder II is opened；
Fig. 4 is the schematic diagram of 1 tight lock part of the embodiment of the present invention；
Fig. 5 is the schematic diagram of slot I on clamping limb of the present invention；
Fig. 6 is the schematic diagram of the embodiment of the present invention 2；
The schematic diagram that Fig. 7 is Fig. 6 semicircles clamping cylinder I of the present invention, semicircle clamping cylinder II is opened.
In figure：1 semicircle clamping cylinder I, 2 semicircle clamping cylinders II, 3 anti-skid chequers, 4 hinges, 5 clamping limbs, 50 flat segments, 51 bendings
Section, 52 Anti-slip covers, 53 slots I, 54 slots II, 6 tight lock parts, 60 thread barrels, 61 connecting rod, I, 62 protrusion, 7 check lock levers.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "upper", "lower", "inner", "outside" " front end ", " rear end ",
The orientation or positional relationship of the instructions such as " both ends ", " one end ", " other end " is to be based on the orientation or positional relationship shown in the drawings, only
It is that for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have specifically
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " the
Two " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set
Be equipped with ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, may be a detachable connection or one
Connect to body；It can be mechanical connection, can also be electrical connection；It can be directly connected, it can also be indirect by intermediary
It is connected, can is the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Embodiment 1
~5 are please referred to Fig.1, the present invention provides a kind of technical solution：
A kind of orthopaedics screw clamping mechanism, including semicircle clamping cylinder I 1, semicircle clamping cylinder II 2 and hinge 4, described half
Justify clamping cylinder I 1, one end of semicircle clamping cylinder II 2 is rotatablely connected by hinge 4, the semicircle clamping cylinder I 1, semicircle clamping cylinder II
2 outer surface is mounted on along its axially vertical clamping limb 5, by hand-held two groups of clamping limbs 5 can to semicircle clamping cylinder I 1,
II 2 opening angle of semicircle clamping cylinder is controlled and is clamped, and semicircle clamping cylinder I 1, semicircle clamping cylinder II 2 can be with hinges 4
(hinge 4 is as being corner hinge, very little door hinge) is shaft rotation, and rotational angle can be suitble to different sizes more than 180 °
Screw be put into, when two groups of clamping limbs 5 clamp rotation/release screw, surgical field of view will not be blocked, will not be to surgical procedure
Cause to interfere, the semicircle clamping cylinder I 1, semicircle clamping cylinder II 2 inner surface offer anti-skid chequer 3, anti-skid chequer 3 and fixed spiral shell
The screw thread on nail surface is adapted, identical as fixing screws material, closes folder in semicircle clamping cylinder I 1, semicircle clamping cylinder II 2 in this way
When fastening screw, anti-skid chequer 3 can tightly bite fixing screws surface, prevent fixing screws from sliding, due to two groups of clampings
Arm is vertical fixed with semicircle clamping cylinder I 1, semicircle clamping cylinder II 2, for inverted "L" shape so fixing screws are with vertical fixed angle
Degree is pierced and (is squeezed into) into bone, will not fall off or offset direction, is opened on the semicircle clamping cylinder I 1 and/or semicircle clamping cylinder II 2
Equipped with through-hole, i.e., there are three types of situations：Semicircle clamping cylinder I 1 offer through-hole either offer on semicircle clamping cylinder II 2 through-hole or
Through-hole is all offered on semicircle clamping cylinder I 1 and semicircle clamping cylinder II 2, through-hole opens up situation depending on particular condition in use, at this
Activity is inserted with check lock lever 7 in through-hole, and check lock lever 7 is connect with through hole whorl, and the clamping limb 5 is arranged close to hinge 4
The outer surface of semicircle clamping cylinder I 1, semicircle clamping cylinder II 2, as shown in Fig. 2, the inside of mounting means clamping limb 5 in this way can be right
Semicircle clamping cylinder I 1, the clamping of semicircle clamping cylinder II 2 are accomplished to be auxiliarily fixed, and so that the two is fixed closer；The clamping limb 5 includes
Flat segments 50 and bending section 51, the flat segments 50 are separately mounted to the appearance of semicircle clamping cylinder I 1, semicircle clamping cylinder II 2
Face, the bending section 51 are fixed on the end of flat segments 50, tight lock part 6 are equipped on any one group in two groups of flat segments 50,
As shown in Figure 2,3, flat segments 50 are used to place tight lock part 6, and so that two clamping limbs 5 is consolidated by tight lock part 6
It is fixed, and then so that medical staff's solution is let go and hold caused fatigue with a firm grip for a long time to clamping limb 5 and then generate loosening, it influences
Fixing screws precession (goes out), and two bending sections 51 are bent outwardly, and is gradually closed in semicircle clamping cylinder I 1, semicircle clamping cylinder II 2 in this way
Certain operating space can be reserved when conjunction, ensures that the two can be preferably closed, and be that hand and the force generation of clamping limb 5 are better
The point of application will not interfere with the closure of the two, fixing screws made more preferably to place and (be in) semicircle clamping cylinder I 1, semicircle clamping cylinder II 2
Between, when semicircle clamping cylinder I 1, semicircle clamping cylinder II 2 are stung after closing conjunction by two clamping limbs 5, fixation spiral shell of the inside
Nail is screwed inwardly by check lock lever 7 again firmly resists fixing screws, is further fixed, avoids to fixing screws
It when being rotated by clamping limb 5, is slided between fixing screws and anti-skid chequer 3, such fixing screws will not loosen, clamping jail
Gu screw will not fall off or offset direction.
The tight lock part 6 includes thread barrel 60, and the screw thread at 60 both ends of the thread barrel is the screw thread of reverse manner, the spiral shell
The both ends of line cylinder 60 are threaded with connecting rod I 61, can be ensured when rotating thread barrel 60 using the screw thread of reverse manner
Two connecting rods I 61 can carry out production contraction to inside/outside simultaneously, thus the release after clamping limb 5 is fixed/is fixed,
Achieve the purpose that by semicircle clamping cylinder I 1, semicircle clamping cylinder II 2 lock/open, the end of the connecting rod I 61 has and it
Integrated raised 62, the side of the flat segments 50 offers the slot I 53 for grafting protrusion 62, the flat segments 50
Upper surface offers the slot II 54 for grafting protrusion 62, and the bending section 51 is outside sweep, and is set with Anti-slip cover 52, institute
It states and magnet piece is installed in slot I 53, when original state, upper two protrusions 62 of two connecting rods I 61 are inserted into slot I 53,
Tight lock part 6 is set to be fixed in flat segments 50, magnet piece plays absorption to made of iron raised 62, prevents tight lock part 6 from falling off, works as needs
Tight lock part 6 is used, tight lock part 6 is removed, two protrusions 62 correspondence is inserted into slot II 54, rotation thread barrel 60 is until will be straight
Section 50 is completely fixed.Screw will not loosen in 5 rotary course of clamping limb in this way, firm grip, screw will not fall off or
Offset direction, screw rotation be screwed into it is more than half after, it is as preliminary fixed, screw can be unclamped, then further will using rotation instrument
Fixing screws are driven into bone completely, easy to use, time saving and energy saving, save operating time, are reduced medical worker and are tightened
The operation difficulty of fixing screws.
Embodiment 2
Fig. 6~7 are please referred to, the present invention provides a kind of technical solution, as different from Example 1：
The clamping limb 5 is mounted remotely from the outer surface of the semicircle clamping cylinder I 1 of hinge 4, semicircle clamping cylinder II 2.Due to two
A clamping limb 5 is in the opening of semicircle clamping cylinder I 1, semicircle clamping cylinder II 2, such mounting means, to semicircle clamping cylinder I 1,
Semicircle clamping cylinder II 2 be closed more laborsaving, and easily fixing screws are fixed by clamping limb 5, prevent itself and it is anti-
Sliding line 3 generates sliding.
In use, first pass through two clamping limbs 5 opens certain angle by semicircle clamping cylinder I 1, semicircle clamping cylinder II 2, then
Fixing screws are put into therebetween, then clamping again, which makes fixing screws be stung with anti-skid chequer 3, will not tightly slide, then again by check lock lever
7 are inwardly screwed into, and one end is made firmly to resist fixing screws, further prevent fixing screws to be slided in rotation, then by two
Two protrusions 62 correspondence of connecting rod I is inserted into slot II 54, and rotation thread barrel 60 is completely fixed until by flat segments 50,
Then rotation is set to indexing and tightens fixing screws, when fixing screws, which are not screwed into position, only remains clamped position, clamping limb 5 will be partly
Circle clamping cylinder I 1, semicircle clamping cylinder II 2, which open, is detached from screw, and (using other orthopaedics tongs) continues screw-driving.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of orthopaedics screw clamping mechanism, it is characterised in that：Including semicircle clamping cylinder I (1), semicircle clamping cylinder II (2) with
And hinge (4), the semicircle clamping cylinder I (1), semicircle clamping cylinder II (2) one end be rotatablely connected by hinge (4), described half
Justify clamping cylinder I (1), the outer surface of semicircle clamping cylinder II (2) is mounted on along its axially vertical clamping limb (5), the semicircle
Clamping cylinder I (1), semicircle clamping cylinder II (2) inner surface offer anti-skid chequer (3), the semicircle clamping cylinder I (1) and/or semicircle
Through-hole is offered on clamping cylinder II (2), activity in the through hole is inserted with check lock lever (7).
2. a kind of orthopaedics screw clamping mechanism according to claim 1, it is characterised in that：The clamping limb (5) includes
Flat segments (50) and bending section (51), the flat segments (50) are separately mounted to semicircle clamping cylinder I (1), semicircle clamping cylinder II
(2) outer surface, the bending section (51) are fixed on the end of flat segments (50), on any one group in two groups of flat segments (50)
Tight lock part (6) is installed.
3. a kind of orthopaedics screw clamping mechanism according to claim 1, it is characterised in that：Clamping limb (5) installation
In the outer surface of semicircle clamping cylinder I (1), semicircle clamping cylinder II (2) close to hinge (4).
4. a kind of orthopaedics screw clamping mechanism according to claim 1, it is characterised in that：Clamping limb (5) installation
In the outer surface of semicircle clamping cylinder I (1), semicircle clamping cylinder II (2) far from hinge (4).
5. a kind of orthopaedics screw clamping mechanism according to claim 2, it is characterised in that：The tight lock part (6) includes
The both ends of thread barrel (60), the thread barrel (60) are threaded with connecting rod I (61), the end of the connecting rod I (61)
Have and offer the slot I (53) for grafting raised (62) with its integrated raised (62), the side of the flat segments (50),
The upper surface of the flat segments (50) offers the slot II (54) for grafting raised (62).
6. a kind of orthopaedics screw clamping mechanism according to claim 2, it is characterised in that：The bending section (51) is outer
Bending, and it is set with Anti-slip cover (52).
7. a kind of orthopaedics screw clamping mechanism according to claim 5, it is characterised in that：Thread barrel (60) both ends
Screw thread be reverse manner screw thread.
8. a kind of orthopaedics screw clamping mechanism according to claim 5, it is characterised in that：Peace in the slot I (53)
Equipped with magnet piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810743951.6A CN108771565B (en) | 2018-07-09 | 2018-07-09 | Screw clamping mechanism for orthopedics department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810743951.6A CN108771565B (en) | 2018-07-09 | 2018-07-09 | Screw clamping mechanism for orthopedics department |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108771565A true CN108771565A (en) | 2018-11-09 |
| CN108771565B CN108771565B (en) | 2020-12-08 |
Family
ID=64031239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810743951.6A Expired - Fee Related CN108771565B (en) | 2018-07-09 | 2018-07-09 | Screw clamping mechanism for orthopedics department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108771565B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110974390A (en) * | 2019-12-11 | 2020-04-10 | 常州市图尔迈医疗器械有限公司 | Mounting rack for accurately positioning intramedullary nail |
| CN111820983A (en) * | 2019-04-18 | 2020-10-27 | 康迈克斯有限责任公司 | Laparoscopic clip machine for applying surgical clips to tissue structures |
| CN114533244A (en) * | 2022-02-17 | 2022-05-27 | 四川大学华西医院 | Nail extractor for orthopedics department |
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| CN202525984U (en) * | 2012-01-04 | 2012-11-14 | 西北民族大学 | Multipurpose walnut hitting device |
| CN103083069A (en) * | 2013-01-25 | 2013-05-08 | 山东省立医院 | Thighbone lesser trochanter fixator |
| CN103505086A (en) * | 2013-09-06 | 2014-01-15 | 徐州格利尔科技有限公司 | Walnut clamp |
| CN203542409U (en) * | 2013-07-22 | 2014-04-16 | 淮阴师范学院 | Ice tongs |
| CN105708532A (en) * | 2014-12-03 | 2016-06-29 | 吴锦丽 | Auxiliary spine internal fixation device and use method thereof |
| CN106821488A (en) * | 2017-04-07 | 2017-06-13 | 中国人民解放军总医院 | A kind of screw is fixed and takes out auxiliary sleeve |
| CN108186092A (en) * | 2018-01-28 | 2018-06-22 | 武汉光谷北宸医疗器械有限公司 | The Universal pedicle screw that undercut mark easily locks |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2521127A1 (en) * | 1975-05-13 | 1976-11-25 | Bode | Bone surgery extraction pliers - removes wire bundles from medullary canal after break heals without shearing or twisting |
| CN2296703Y (en) * | 1997-05-10 | 1998-11-11 | 东营市人民医院 | Screw driving pliers for bone operation |
| CN2368469Y (en) * | 1999-05-13 | 2000-03-15 | 宁少伟 | Detacher for bone fracture plate |
| US20020032442A1 (en) * | 2000-06-09 | 2002-03-14 | Moti Altarac | Adjustable transverse connector for use with a spinal implant system |
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| CN202525984U (en) * | 2012-01-04 | 2012-11-14 | 西北民族大学 | Multipurpose walnut hitting device |
| CN103083069A (en) * | 2013-01-25 | 2013-05-08 | 山东省立医院 | Thighbone lesser trochanter fixator |
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| CN108186092A (en) * | 2018-01-28 | 2018-06-22 | 武汉光谷北宸医疗器械有限公司 | The Universal pedicle screw that undercut mark easily locks |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111820983A (en) * | 2019-04-18 | 2020-10-27 | 康迈克斯有限责任公司 | Laparoscopic clip machine for applying surgical clips to tissue structures |
| CN111820983B (en) * | 2019-04-18 | 2024-08-20 | 康迈克斯有限责任公司 | Laparoscopic clamping machine for applying surgical clamping to tissue structures |
| CN110974390A (en) * | 2019-12-11 | 2020-04-10 | 常州市图尔迈医疗器械有限公司 | Mounting rack for accurately positioning intramedullary nail |
| CN114533244A (en) * | 2022-02-17 | 2022-05-27 | 四川大学华西医院 | Nail extractor for orthopedics department |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108771565B (en) | 2020-12-08 |
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