CN105434033B - One kind holding spike devices - Google Patents
One kind holding spike devices Download PDFInfo
- Publication number
- CN105434033B CN105434033B CN201410521597.4A CN201410521597A CN105434033B CN 105434033 B CN105434033 B CN 105434033B CN 201410521597 A CN201410521597 A CN 201410521597A CN 105434033 B CN105434033 B CN 105434033B
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- CN
- China
- Prior art keywords
- supporting rod
- gag lever
- lever post
- spike devices
- gripper jaw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007704 transition Effects 0.000 claims description 17
- 230000004308 accommodation Effects 0.000 claims description 8
- 239000013013 elastic material Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000001954 sterilising effect Effects 0.000 abstract description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 3
- 241001079814 Symphyotrichum pilosum Species 0.000 description 7
- 235000004224 Typha angustifolia Nutrition 0.000 description 7
- 230000008602 contraction Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses one kind to hold spike devices, including supporting rod and gag lever post, and the supporting rod is hollow structure and is set on the gag lever post that one end of the supporting rod is disposed with gripper jaw and boss, and the gripper jaw matches with screw head；The gag lever post includes connected limiting section and main body, and the size of the gag lever post is increased by limiting section to main part, and the supporting rod makes the boss strut or collapse when moving back and forth on the gag lever post.Provided by the invention to hold supporting rod in spike devices and be used cooperatively with gag lever post, gripper jaw and screw head shape are coincide, and supporting rod band is flexible, and holding power is big, is not easy to fall；Overall structure, no assembly, sterilization is without disassembly；Structure is simply small and exquisite, and production technology simplifies, save the cost.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to one kind to hold spike devices.
Background technique
Medical staff often uses screw during surgery, and due to its small volume, clamp screws are one extremely difficult
Thing reduce operating time in order to facilitate clamp screws, medical staff be badly in need of it is a kind of can convenient and efficient clamp screws it is dedicated
Tool.
Currently available technology, which essentially discloses, following several holds spike devices:
The first holds spike devices: referring to Figure 1, being assembled by holding nail rod 1, outer sleeve 2, spring 3 and sealing cap 4.It uses
When, outer sleeve 2 is pushed by spring 3 and holds nail rod 1 relatively moving, due to when 2 diameter of outer sleeve, which is less than, to be held 1 claw of nail rod and strut
Size makes to hold the contraction of 1 pawl of nail rod, clamp screws.There are following disadvantages for the device: 1, structure is complicated, holds nail rod 1, housing
Cylinder 2 and 4 dimensional fits of sealing cap and matching requirements are high；2, multicomponent is assembled, and bloodstain etc. is had after operation and resides in assembly knot
At conjunction, such as sealing cap 4 and hold between nail rod 1, it is very time-consuming when carrying out disassembly sterilization between spring 3 and outer sleeve 2 etc.
Arduously.
It holds spike devices second: referring to Fig. 2, by the elastic steel ball 6 on 5 head of spanner, pressing pin cap aperture inner wall, thus
Reach and holds nail effect.The device has following several disadvantages: 1, holding power is small, and screw is easily caused to fall；2, Wrench head punches,
Reduce spanner intensity and service life.
The third holds spike devices: referring to Fig. 3, screw bar portion is stuck in the U-shaped head of bracket, the front end top of gag lever post 7
The firmly head of screw, grip part 8 are held for user, hold nail effect to reach.There are following several disadvantages for the device:
1, it is ineffective to hold nail, can be shaken when tightening screw.2, bracket bar portion may damage notch soft tissue.
Holding the disadvantage mentioned above of spike devices has very big deficiency to nail effect is held, therefore, it is necessary to which providing a kind of can overcome these
What disadvantage and being able to achieve held nail function holds spike devices.
Summary of the invention
That technical problem to be solved by the invention is to provide a kind of structures is simple, holding power is big, safe and reliable holding is bound
It sets.
The present invention is to solve above-mentioned technical problem and the technical solution adopted is that providing one kind holds spike devices, including supporting rod
And gag lever post, the supporting rod includes at least two clamping parts, positioned at one end of the supporting rod；The gag lever post includes successively
Accommodation space is collectively formed in connected limiting section, transition part and main body, the limiting section and the supporting rod, for accommodating a spiral shell
The head of nail；The supporting rod is hollow structure and is set on the gag lever post, when the supporting rod is on the gag lever post
When being moved back and forth from the limiting section to the main body, two clamping parts be located remotely from each other each other or it is close to each other each other,
For clamping the screw.
Above-mentioned holds spike devices, wherein each supporting rod includes a gripper jaw and a boss, the gripper jaw and institute
State boss be connected, the shape of the gripper jaw and the shape on the head of the screw match, the shape of the boss with it is described
The shape of gag lever post matches.
Above-mentioned holds spike devices, wherein the central axis of the inner wall of the gripper jaw towards supporting rod curves inwardly, and is formed
Claw-like.
Above-mentioned holds spike devices, wherein the supporting rod is in integral structure, is made of elastic material.
Above-mentioned holds spike devices, wherein the supporting rod further includes two clamping limbs and two the first grooves, described in two
Clamping limb is connected with two clamping parts respectively, and two first grooves are located between two clamping limbs, and edge
The direction of the central axis of the supporting rod opens up.
Above-mentioned holds spike devices, wherein the supporting rod further includes press section, positioned at the other end of the supporting rod, institute
The direction that press section is stated away from the central axis of supporting rod protrudes outward.
Above-mentioned holds spike devices, wherein the supporting rod further includes two the second grooves, and the quantity of the press section is two
A, second groove is located between two press sections, and the direction of the central axis along the supporting rod opens up,
The end of each second groove is provided with rounded groove, and the diameter of the rounded groove is greater than the width of second groove
Degree.
Above-mentioned holds spike devices, wherein the transition part is substantially in frustum cone structure, and the transition part has first end and the
Two ends, the diameter of the second end are greater than the diameter of the first end, and the first end is connected with the limiting section, and described the
Two ends are connected with the main body.
Above-mentioned holds spike devices, wherein the boss have the second intrados and top surface, second intrados with it is described
Limiting section cooperation, forms the accommodation space between first intrados, the top surface and the outer surface of the limiting section.
Above-mentioned holds spike devices, wherein the supporting rod and the gag lever post are substantially cylindrical, two clamping parts
Central axis about supporting rod is in symmetrical structure.
The present invention, which compares the prior art, to be had following the utility model has the advantages that provided by the invention hold spike devices, supporting rod and limit
Bar is used cooperatively, and supporting rod has boss, and boss and gag lever post squeeze, and strut gripper jaw, struts size greater than head of screw ruler
It is very little；Gag lever post is inserted into screw head turn hole, and supporting rod tail portion is pushed to slide to screw head.Period, boss and gag lever post
Squeezed state is kept, is gradually reduced with limit shank diameter, gripper jaw is shunk, and clamp screws head reaches and holds nail purpose；This, which is held, binds
It sets gripper jaw and screw head shape is coincide, especially supporting rod band is flexible, and holding power is big, is not easy to fall；Overall structure, nothing
Assembly, sterilization is without disassembly；Structure is simply small and exquisite, and production technology simplifies, save the cost.
Detailed description of the invention
Fig. 1 is existing one of the structural schematic diagram for holding spike devices；
Fig. 2 is the existing second structural representation for holding spike devices；
Fig. 3 is the existing third structural representation for holding spike devices；
Fig. 4 is the structural schematic diagram that spike devices contraction state is held in the embodiment of the present invention；
Fig. 5 is the diagrammatic cross-section that spike devices contraction state is held in the embodiment of the present invention.
Fig. 6 is the structural schematic diagram that spike devices softened state is held in the embodiment of the present invention；
Fig. 7 is the diagrammatic cross-section that spike devices softened state is held in the embodiment of the present invention；
Fig. 8 is the left view for holding spike devices in Fig. 4；
Fig. 9 is the schematic diagram for holding spike devices in another embodiment of the present invention.
In figure:
1 holds 4 sealing cap of nail rod 2 outer sleeve, 3 spring, 5 spanner
6 steel ball, 7 gag lever post, 8 grip part
10 supporting rod, 11 gripper jaw, 12 boss, 13 clamping limb, 14 press section
15 first 16 second groove of groove, 17 rounded groove
20 gag lever post, 21 limiting section, 22 main body, 23 transition part
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 4 is the structural schematic diagram that spike devices contraction state is held in the embodiment of the present invention；Fig. 5 is to hold in the embodiment of the present invention
The diagrammatic cross-section of spike devices contraction state.
Fig. 4 and Fig. 5 are referred to, the present embodiment provides one kind to hold spike devices, including supporting rod 10 and gag lever post 20, supporting rod
10 one end has a pair of of clamping part, and each clamping part includes a gripper jaw 11 and a boss 12, and supporting rod 10 is hollow
Structure is simultaneously set on gag lever post 20.The other end of supporting rod 10 has a pair of of press section 14.The inner wall direction limit of gripper jaw 11
The central axis of position bar 20 curves inwardly, and forms claw-like, is used for clamp screws head, and gripper jaw 11 is connected with boss 12.It presses
Splenium 14 is protruded outward away from the direction of the central axis of gag lever post 20, is being limited for controlling supporting rod 10 for operator
It is moved back and forth on the bar 20 of position.
Further, the central axis direction between two gripper jaws 11 along supporting rod 10 opens up two symmetrical first grooves
15, two clamping limbs 13 being oppositely arranged are formed, the central axis direction between two press sections 14 along supporting rod 10 offers two
A symmetrical second groove 16, the end of the second groove 16 are provided with rounded groove 17, and the diameter of rounded groove 17 is greater than second
The width of groove 16, convenient for pushing supporting rod 10 to slide back and forth on gag lever post 20.Preferably, 10 main body of supporting rod is in cylinder
Shape, gripper jaw 11, boss 12 and press section 14 are in symmetrical structure about the central axis of supporting rod 10.Preferably, gripper jaw 11,
Boss 12, clamping limb 13 and press section 14 are one of the forming, such as stainless by having the metal material of certain elasticity and rigidity to be made
The holding power of steel, clamping limb 13 is larger, can be held fixedly screw.
The present embodiment with the quantity of clamping part be two as a preferred embodiment, in other embodiments, the number of clamping part
Amount or two or more, such as three, four, five, multiple clamping parts can be circumferentially uniformly distributed, as long as limit
Position bar 20 can strut or collapse boss 12, so that gripper jaw 11 be made to clamp screw, the present invention is without limitation.
Gag lever post 20 includes connected limiting section 21 and main body 22, and limiting section 21 is connected with main body 22 by transition part 23
It connects.Limiting section 21 is process by cylindrical body, in the present embodiment, for preceding cross section is hexagon and rear cross-sectional is
Round cylinder (please also refer to Fig. 7 and Fig. 8), so as to be matched with the screw head slot of soket head cap screw, certainly, limit
Position portion is also possible to other shapes, so that the head slot with different types of screw matches, for example, limiting section is also possible to
Shown in Fig. 9, front-end cross-sectional view be it is quincunx, for being matched with wabbler screw, the present invention it is without limitation.Limiting section
21, an accommodation space is collectively formed in gripper jaw 11 and boss 12, for accommodating the head for the screw to be clamped.
Main body 22 is cylindrical structure, certainly, in other embodiments, main body 22 or other structures, as long as main
Body 22 can be realized with supporting rod 10 and is slidably matched.The substantially circular platform type structure of transition part 23 has first end and second
End, the diameter of second end are greater than the diameter of first end, which is connected with limiting section 21, which is connected with main body 22
It connects, so that structure from fine to coarse is presented in gag lever post 20.
It please also refer to Fig. 7 and Fig. 8, gripper jaw 11 has the first intrados 111, and boss 12 has the second intrados
121, top surface 122 and bottom surface 123.In the state of not strutting, boss 12 is matched with limiting section 21, thus the first intrados
111, accommodation space is formed between top surface 122 and the outer surface of limiting section 21, for accommodating the head for the screw to be clamped.?
In the present embodiment, the outer surface of the second intrados 121 and limiting section 21 of boss 12 is clearance fit, when second on supporting rod 10
When the junction of intrados 121 and bottom surface 123 is located on limiting section 21, accommodation space is smaller, and screw can be anchored on to receiving
In space, when supporting rod 10 moves backward, accommodation space is become larger, until can complete release screw, or until can
Limiting section 21 to be embedded in the head of screw.
It is provided by the invention to hold in spike devices continuing with-Fig. 8 referring to fig. 4, size, the shape of gripper jaw 11 and screw head
Shape matches, the screw head shape can be it is hemispherical, coniform etc., gripper jaw 11 in contraction state, gag lever post
Limiting section 21 protrudes into the slot opened up on screw head, resists screw, and gripper jaw 11 clamps screw from the surrounding of screw head
Head, the top surface of screw head resist the upper surface of boss 12, thus achieve the effect that exert a force to screw from top surface and surrounding, energy
It reaches effectively and is held fixedly screw.
In use, supporting rod 10 is used cooperatively with gag lever post 20, supporting rod 10 has boss 12, by controlling supporting rod 10
Mobile to the tail portion of gag lever post 20 on gag lever post 20, boss 12 is squeezed with transition part 23, and transition part 23 gradually struts folder
Pawl 11 is held, when boss 12 crosses the second end of transition part 23, is in contact with the main body 22 of gag lever post 20, gripper jaw 11 is kept most
Big opening state, the space between two gripper jaws 11 are greater than the size of head of screw.Due to having the first groove 15, rounded groove 17
Clamping limb 13 can be easily strutted during mobile supporting rod 10 with the presence of the second groove 16, opens gripper jaw
11。
At this point, limiting section 21 can be inserted into screw head slot, and push supporting rod press section 14 sliding to screw head
It is dynamic.Period, boss 12 and transition part 23 keep squeezed state, gradually reduce with 23 diameter of transition part, and gripper jaw 11 is shunk, clamping
Screw head reaches and holds nail purpose.When disassembly is desired, it is only necessary to control supporting rod 10 on gag lever post 20 to far from gag lever post
20 caudal directions are mobile, i.e., separable supporting rod 10 and gag lever post 20 carry out cleaning, easy to operate, are readily cleaned.
This holds the gripper jaw of spike devices and screw head shape is coincide, and limiting section is fixed in screw head, supporting rod band
Flexible, therefore, holding power is big, is not easy to fall；Overall structure is simple, and convenient disassembly is readily cleaned；Structure is simply small and exquisite, raw
Production. art simplifies, save the cost.
Although the present invention is disclosed as above with preferred embodiment, however, it is not to limit the invention, any this field skill
Art personnel, without departing from the spirit and scope of the present invention, when can make a little modification and perfect therefore of the invention protection model
It encloses to work as and subject to the definition of the claims.
Claims (8)
1. one kind holds spike devices characterized by comprising
Supporting rod, one end of the supporting rod include two clamping limbs and the first groove between the clamping limb, and two
The clamping limb is respectively formed two clamping parts；And
Gag lever post, the gag lever post include the limiting section, transition part and main body being sequentially connected, and the transition part is in frustum cone structure,
The transition part has a first end and a second end, and the diameter of the second end is greater than the diameter of the first end, the first end
It is connected with the limiting section, the second end is connected with the main body；
Wherein, accommodation space is collectively formed in the limiting section and the clamping part, for accommodating the head of a screw；The clamping
Bar is hollow structure and is set on the gag lever post；
The clamping part includes a gripper jaw and a boss, and the gripper jaw is connected with the boss, the shape of the gripper jaw
Match with the shape on the head of the screw, the shape of the boss and the shape of the gag lever post match；
When the supporting rod is mobile to gag lever post main direction on the gag lever post, the boss and the transition part occur
It squeezes, the transition part gradually struts gripper jaw；When the supporting rod is mobile to limiting section direction on the gag lever post, with
Transition part diameter gradually reduces, and gripper jaw is shunk, clamp screws head, and the gripper jaw is clamped from the surrounding of screw head at this time
Firmly screw head, the top surface of screw head resist the upper surface of the boss.
2. according to claim 1 hold spike devices, which is characterized in that the inner wall of the gripper jaw is towards the supporting rod
Central axis curves inwardly, and forms claw-like.
3. according to claim 1 hold spike devices, which is characterized in that the supporting rod is in integral structure, by elastic material
It is made.
4. according to claim 1 hold spike devices, which is characterized in that central axis of first groove along the supporting rod
The direction of line opens up.
5. according to claim 1 hold spike devices, which is characterized in that the supporting rod further includes press section, is located at described
The other end of supporting rod, the press section are protruded outward away from the direction of the central axis of the supporting rod.
6. according to claim 5 hold spike devices, which is characterized in that the supporting rod further includes two the second grooves, institute
The quantity for stating press section is two, and two second grooves are located between two press sections, and along the clamping
The direction of the central axis of bar opens up, and the end of each second groove is provided with rounded groove, the rounded groove it is straight
Diameter is greater than the width of second groove.
7. according to claim 1 hold spike devices, which is characterized in that the gripper jaw has the first intrados, described convex
Platform has the second intrados and top surface, and second intrados and the limiting section cooperate, first intrados, the top surface
The accommodation space is formed between the outer surface of the limiting section.
8. according to claim 1-7 hold spike devices, which is characterized in that the supporting rod and the gag lever post are big
Cause it is cylindrical, two clamping parts about the supporting rod central axis be in symmetrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521597.4A CN105434033B (en) | 2014-09-30 | 2014-09-30 | One kind holding spike devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521597.4A CN105434033B (en) | 2014-09-30 | 2014-09-30 | One kind holding spike devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105434033A CN105434033A (en) | 2016-03-30 |
| CN105434033B true CN105434033B (en) | 2019-03-08 |
Family
ID=55544989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410521597.4A Active CN105434033B (en) | 2014-09-30 | 2014-09-30 | One kind holding spike devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105434033B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111674824B (en) * | 2020-07-13 | 2024-11-19 | 大茂伟瑞柯车灯有限公司 | Automatic feeding rack for production line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2772460Y (en) * | 2005-03-25 | 2006-04-19 | 宋朝晖 | Hollow screw drawing-out device |
| CN101606861A (en) * | 2009-07-30 | 2009-12-23 | 郭谦 | A kind of screwdriver containing clamp pin in hand surgery |
| FR2943238B1 (en) * | 2009-03-18 | 2013-04-26 | Fournitures Hospitalieres Ind | EXTRACTION OF A HIP PROTHESIS FASTENING SCREW |
| CN203815572U (en) * | 2014-04-30 | 2014-09-10 | 张立峰 | Orthopedics screw taking device allowing screws to be taken out easily |
| CN204121157U (en) * | 2014-09-30 | 2015-01-28 | 上海微创骨科医疗科技有限公司 | One holds spike devices |
-
2014
- 2014-09-30 CN CN201410521597.4A patent/CN105434033B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2772460Y (en) * | 2005-03-25 | 2006-04-19 | 宋朝晖 | Hollow screw drawing-out device |
| FR2943238B1 (en) * | 2009-03-18 | 2013-04-26 | Fournitures Hospitalieres Ind | EXTRACTION OF A HIP PROTHESIS FASTENING SCREW |
| CN101606861A (en) * | 2009-07-30 | 2009-12-23 | 郭谦 | A kind of screwdriver containing clamp pin in hand surgery |
| CN203815572U (en) * | 2014-04-30 | 2014-09-10 | 张立峰 | Orthopedics screw taking device allowing screws to be taken out easily |
| CN204121157U (en) * | 2014-09-30 | 2015-01-28 | 上海微创骨科医疗科技有限公司 | One holds spike devices |
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| Publication number | Publication date |
|---|---|
| CN105434033A (en) | 2016-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181213 Address after: 215000 Workshop B, No. 112 Fangzhong Street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Applicant after: Suzhou Minimally Invasive Spinal Trauma Medical Technology Co., Ltd. Address before: 201318 twenty-third, 1-28 Lane 588, Tian Xiong Road, Zhou Pu town, Pudong New Area, Shanghai Applicant before: Shanghai MicroPort Orthopedics Co., Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |