CN209203471U - A kind of self-stopping type pressurization bolt component - Google Patents
A kind of self-stopping type pressurization bolt component Download PDFInfo
- Publication number
- CN209203471U CN209203471U CN201821248118.6U CN201821248118U CN209203471U CN 209203471 U CN209203471 U CN 209203471U CN 201821248118 U CN201821248118 U CN 201821248118U CN 209203471 U CN209203471 U CN 209203471U
- Authority
- CN
- China
- Prior art keywords
- pressurization
- screw
- screw rod
- hole
- diameter
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Surgical Instruments (AREA)
Abstract
A kind of self-stopping type pressurization bolt component, belongs to orthopedic medical device technical field, carries out loaded reset from outside when being used for fracture of tibial plateau.Its technical solution is: the diameter at the screw rod rear portion of pressurization bolt is less than the diameter of screw rod front, the enlarged diameter section of screw rod and the engaging portion of reduced diameter section are inclined loop connecting section, the screw rod rear portion body of rod has inner hole, the inner hole of pressurization nut is not isometrical screw hole, the screw thread of the screw rod enlarged diameter section of the screw thread and pressurization bolt of pressurization nut front major diameter screw hole matches, the screw thread of the screw rod reduced diameter section of the screw thread and pressurization bolt of pressurization nut rear portion small-diameter screw-hole matches, pressurization nut front major diameter screw hole is vertical planar annular with the junction of rear portion small-diameter screw-hole.The utility model structure is simple and convenient to operate, and effect is reliable, eliminate because pressurization bolt end leave it is too long caused by local soft tissue stimulation there is situations such as pain, limitation of activity, avoid the generation of various complication, reached satisfied reset effect.
Description
Technical field
The utility model relates to it is a kind of treat fracture of tibial plateau when from the external device for carrying out loaded reset, belong to orthopaedics
The field of medical instrument technology.
Background technique
The advantage of fracture of tibial plateau Minimally Invasive Surgery is can to reduce operation wound, is effectively reduced in art, postoperative complications
Incidence, successful key are to realize fracture closed reduction.The Radiologic imaging of fracture of tibial plateau is often tibial plateau
Even there is metaphysis crushing in fissure fracture, companion's articular step-off, serious person.Operating difficulty is big, and operation skill requires height, because
This, treatment for tibial plateau fracture is always the difficult point of orthopaedic trauma.Currently, the minimally invasive resetting technique of fracture of tibial plateau is mainly
For collapsing the jack-up of the sclerite of displacement, including the minimally invasive jack-up resetting technique of arthroscope auxiliary and the minimally invasive reset skill of expanding plasty
Art etc., but usually there is tibial plateau and broadens in tibial plateau, and will appear the line of force if being unable to parking position accuracy not just, and image is treated
Effect.Current relatively effective method is to be pressurizeed using bolt, but deposit that tip of screw after the pressurizing is too long, and stimulation skin occurs
The problems such as local soft tissue pain.This problem is not satisfactorily resolved so far, it is therefore necessary to take create it is new
Instrument and bolt are fixed.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of self-stopping type pressurization bolt component, this pressurization bolts
Component can fracture after pressurization bolt is tightened in place from pressurized portion, avoid pressurization bolt end from leaving too long, eliminate
Due to bolt end leave it is too long caused by local soft tissue stimulation there is the problems such as pain, limitation of activity.
The technical solution for solving above-mentioned technical problem is:
A kind of self-stopping type pressurization bolt component, it includes pressurization bolt, pressurization nut, and the screw rod of pressurization bolt is not isometrical
Screw rod, the diameter at screw rod rear portion are less than the diameter of screw rod front, and the enlarged diameter section of screw rod and the engaging portion of reduced diameter section are inclination
Loop connecting section, the reduced diameter section of screw rod, loop connecting section have screw thread, spiral shell close to the enlarged diameter section of loop connecting section respectively
The bar rear portion body of rod has inner hole, and inner hole extends to more than the enlarged diameter section of screw rod and the ring of reduced diameter section engaging portion from screw end face
Shape linkage section reaches the inside of enlarged diameter section, and the wall thickness between loop connecting section and inner hole is less than between screw rod rear portion and inner hole
Wall thickness, the inner hole of the nut that pressurizes is not isometrical screw hole, and pressurize the screw thread of nut front major diameter screw hole and the spiral shell of pressurization bolt
The screw thread of bar enlarged diameter section matches, the screw rod reduced diameter section of the screw thread and pressurization bolt of pressurization nut rear portion small-diameter screw-hole
Screw thread matches, and the junction of pressurization nut front major diameter screw hole and rear portion small-diameter screw-hole is perpendicular to pressurization nut center
The planar annular of axis.
Above-mentioned self-stopping type pressurization bolt component, the pressurization nut front end face are located at outside the tibial plateau at pressurization bolt rear portion
At portion's pressurization, the loop connecting of the major diameter screw hole for the nut that pressurizes and the planar annular of small-diameter screw-hole junction and pressurization bolt
The rear end of section is opposite.
Above-mentioned self-stopping type pressurization bolt component, it also twists off screwdriver, twists off screwdriver and is made of handle, cone bar, conehead, hand
Handle is sequentially connected with cone bar, conehead, and there is inner hole in the front end of conehead, and inner hole is hexagon, the hexagon of inner hole and the nut that pressurizes
Peripheral shape matches.
The beneficial effects of the utility model are:
The utility model has minor diameter screw rod outside inner hole, the nut that pressurizes is right in the rear design inner hole of pressurization bolt
Tibial plateau can automatically cut off the screw rod of pressurization bolt from the not isometrical junction of pressurization bolt while pressurization, reach
Prevent pressurization bolt end from leaving too long purpose.
The utility model is the pioneering of fracture of tibial plateau pressurization, solves pressurization common after pressurizeing using pressurization bolt
Bolt end leaves too long problem, eliminate due to bolt end leave it is too long caused by local soft tissue stimulation ache
Bitterly, situations such as limitation of activity, be conducive to the rehabilitation of patient.The utility model structure is simple and convenient to operate, and effect is reliable, can be with
The pressurized state for keeping pressurization bolt, avoids the generation of various complication, fracture of tibia is made to reach satisfied reset effect, is micro-
Development of the wound technology in treatment for tibial plateau fracture provides technical support, in industry have it is good popularization and use and it is practical
New conversion value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the assembled state schematic diagram of Fig. 1；
Fig. 3 is the use state diagram of the utility model.
It is marked in figure as follows: pressurization bolt 1, pressurization nut 2, enlarged diameter section 3, reduced diameter section 4, loop connecting section 5, inner hole
6, major diameter screw hole 7, small-diameter screw-hole 8, planar annular 9, twist off screwdriver 10, handle 11, cone bar 12, conehead 13, shin bone 14.
Specific embodiment
The self-stopping type pressurization bolt component of the utility model by pressurization bolt 1, pressurization nut 2, twist off screwdriver 10 and form.
Fig. 1,2 displays, the screw rod of pressurization bolt 1 are not isometrical screw rod, and the diameter at screw rod rear portion is less than the straight of screw rod front
Diameter, the enlarged diameter section 3 of screw rod and the engaging portion of reduced diameter section 4 are inclined loop connecting section 5, the reduced diameter section 4 of screw rod, ring-type
Linkage section 5 and the enlarged diameter section 3 of close loop connecting section 5 have screw thread respectively, and for pressurizeing, nut 2 is screwed in.
Fig. 1,2 displays, the screw rod rear portion body of rod of pressurization bolt 1 have inner hole 6, and inner hole 6 is extended to more than from screw end face
The enlarged diameter section 3 of screw rod and the loop connecting section 5 of 4 engaging portion of reduced diameter section, reach the inside of enlarged diameter section 3, loop connecting section 5
Wall thickness between inner hole 6 is less than the wall thickness between screw rod rear portion and inner hole 6, will disconnect when by larger pressure.Pressurization bolt 1
Rear portion using the purpose of 6 structure of inner hole be that pressurization bolt 1 fractures from rear portion, 6 one side of inner hole greatly reduces screw rod
Intensity reduces the difficulty to fracture, and another aspect inner hole 6 is inclined annular wall in the hole wall of loop connecting section 5, and wall thickness is very
It is thin, pressurization cutting can be carried out by pressurization nut 2.
Fig. 1,2 displays, the inner hole of pressurization nut 2 are that isometrical screw hole pressurization 2 front of nut is not major diameter screw hole 7, rear portion
For small-diameter screw-hole 8, the screw thread of the pressurize screw thread of 2 front major diameter screw hole 7 of nut and the screw rod enlarged diameter section 3 of pressurization bolt 1
Match, the screw thread of the screw thread and the screw rod reduced diameter section 4 of pressurization bolt 1 of the 2 rear portion small-diameter screw-hole 8 of nut that pressurizes matches.
When pressurization nut 2 is connect with pressurization bolt 1, the enlarged diameter section 3 of pressurization bolt 1 is screwed into the major diameter screw hole 7 of pressurization nut 2
In, the reduced diameter section 4 of pressurization bolt 1 is screwed into the small-diameter screw-hole 8 of pressurization nut 2.
The junction of Fig. 1,2 displays, pressurization 2 front major diameter screw hole 7 of nut and rear portion small-diameter screw-hole 8 is perpendicular to adding
Press the planar annular 9 of 2 central axis of nut.The effect of planar annular 9 is, when the nut 2 that pressurizes is screwed into pressurization bolt 1, when adding
When the planar annular 9 of nut 2 being pressed to reach the loop connecting section 5 of pressurization bolt 1, planar annular 9 is moved forward, to loop connecting section
5 pressurizations, will cut off the annular wall of loop connecting section 5 when pressure is sufficiently large, achieve the purpose that cut off pressurization bolt 1.
Fig. 1 shows that it also twists off screwdriver 10, twists off screwdriver 10 and is made of handle 11, cone bar 12, conehead 13, handle 11
It is sequentially connected with cone bar 12, conehead 13, there is inner hole in the front end of conehead 13, and inner hole is hexagon, the hexagon and pressurization spiral shell of inner hole
The peripheral shape of cap 2 matches.
Fig. 2,3 displays, in order to which when the nut 2 that pressurizes reaches the bone wall of shin bone 14, pressurization nut 2 can be in time by the spiral shell that pressurizes
Bolt 1 is cut off, and needs to measure before surgery, sets the length of pressurization bolt 1 and the thickness of pressurization nut 2, so that pressurization spiral shell
When 2 front end face of cap is located at the tibial plateau external pressurized at 1 rear portion of pressurization bolt, the major diameter screw hole 7 for the nut 2 that pressurizes and small straight
The rear end of the loop connecting section 5 of the planar annular 9 and pressurization bolt 1 of 8 junction of diameter screw hole is just opposite.Therefore the utility model
Pressurization bolt 1 and pressurization nut 2 should be multiple groups, the length of multiple groups pressurization bolt 1 and the thickness of nut 2 that pressurizes are different, can
For being selected in operation according to patient profiles.
Fig. 3 shows, the utility model use process is as follows:
Firstly, suitable one group of pressurization bolt 1 and pressurization nut 2 are selected according to the damage of patient's shin bone 14 and reset case,
The shin bone 14 of damage is resetted, pressurization bolt 1 is screwed into from the side of shin bone 14, and bone block after reset is connected as one；
Then, it is screwed into pressurization nut 2 in the end that pressurization bolt 1 is pierced by shin bone 14, the major diameter screw hole 7 for the nut 2 that pressurizes
It covers on the enlarged diameter section 3 of pressurization bolt 1,8 sets of the small-diameter screw-hole reduced diameter sections 4 in pressurization bolt 1 of the nut 2 that pressurizes.It turns round
The 13 front end inner hole of conehead of disconnected screwdriver 10 and the periphery of pressurization nut 2 cooperate, forward rotation pressurization nut 2.
When the front end face and 14 bone wall of shin bone of nut 2 to be pressurised are adjacent to, the planar annular 9 for the nut 2 that at this moment pressurizes, which reaches, to be added
The loop connecting section 5 for pressing bolt 1, continues to rotate and twists off screwdriver 10, and the planar annular 9 of pressurization nut 2 continues to move along, to ring
Shape linkage section 5 pressurizes.The annular wall of loop connecting section 5 is cut off.
After the loop connecting section 5 for cutting off pressurization bolt 1, the reduced diameter section 4 of the pressurization bolt 1 to fracture is taken out, is continued to rotate
Pressurize nut 2, so that pressurization nut 2 is reached suitable pressurized state to 14 side wall of shin bone, realizes satisfied reset effect.
One embodiment of the utility model is as follows:
The length of the enlarged diameter section 3 of pressurization bolt 1 is 55-120mm, diameter 7mm；The length of reduced diameter section 4 is 50mm,
Diameter is 4 mm；The length of loop connecting section 5 is 2.5mm, wall thickness 0.5mm.
The outer diameter of pressurization nut 2 is 10mm, and the diameter of major diameter screw hole 7 is 7mm, length 3mm；Small-diameter screw-hole 8
Diameter is 4mm, length 2.5mm.
Claims (3)
1. a kind of self-stopping type pressurization bolt component, it is characterised in that: it includes pressurization bolt (1), pressurization nut (2), and pressurize spiral shell
The screw rod of bolt (1) is not isometrical screw rod, and the diameter at screw rod rear portion is less than the diameter of screw rod front, the enlarged diameter section (3) of screw rod with
The engaging portion of reduced diameter section (4) is inclined loop connecting section (5), the reduced diameter section (4) of screw rod, loop connecting section (5), close
The enlarged diameter section (3) of loop connecting section (5) has screw thread respectively, and the screw rod rear portion body of rod has inner hole (6), and inner hole (6) is from screw end
Face extends to more than the enlarged diameter section (3) of screw rod and the loop connecting section (5) of reduced diameter section (4) engaging portion, reaches enlarged diameter section
(3) inside, the wall thickness between loop connecting section (5) and inner hole (6) are less than the wall thickness between screw rod rear portion and inner hole (6), add
The inner hole for pressing nut (2) is not isometrical screw hole, screw thread and pressurization bolt (1) of pressurization nut (2) front major diameter screw hole (7)
The screw thread of screw rod enlarged diameter section (3) matches, screw thread and pressurization bolt (1) of pressurization nut (2) rear portion small-diameter screw-hole (8)
The screw thread of screw rod reduced diameter section (4) matches, pressurization nut (2) front major diameter screw hole (7) and rear portion small-diameter screw-hole (8)
Junction is the planar annular (9) perpendicular to pressurization nut (2) central axis.
2. self-stopping type pressurization bolt component according to claim 1, it is characterised in that: pressurization nut (2) front end face
At the tibial plateau external pressurized at pressurization bolt (1) rear portion, the major diameter screw hole (7) and minor diameter spiral shell of pressurization nut (2)
The planar annular (9) of hole (8) junction and the rear end of loop connecting section (5) of pressurization bolt (1) are opposite.
3. self-stopping type pressurization bolt component according to claim 1, it is characterised in that: it is also twisted off screwdriver (10), is turned round
Disconnected screwdriver (10) are made of handle (11), cone bar (12), conehead (13), and handle (11) successively connects with cone bar (12), conehead (13)
It connects, there is inner hole in the front end of conehead (13), and inner hole is hexagon, the hexagon and the peripheral shape phase of pressurization nut (2) of inner hole
Match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821248118.6U CN209203471U (en) | 2018-08-03 | 2018-08-03 | A kind of self-stopping type pressurization bolt component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821248118.6U CN209203471U (en) | 2018-08-03 | 2018-08-03 | A kind of self-stopping type pressurization bolt component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209203471U true CN209203471U (en) | 2019-08-06 |
Family
ID=67452748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821248118.6U Withdrawn - After Issue CN209203471U (en) | 2018-08-03 | 2018-08-03 | A kind of self-stopping type pressurization bolt component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209203471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108904024A (en) * | 2018-08-03 | 2018-11-30 | 河北医科大学第三医院 | A kind of self-stopping type pressurization bolt component |
| CN111666943A (en) * | 2020-04-20 | 2020-09-15 | 国网浙江省电力有限公司 | Matching detection method and system for bolt and nut of power transmission line based on image recognition |
-
2018
- 2018-08-03 CN CN201821248118.6U patent/CN209203471U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108904024A (en) * | 2018-08-03 | 2018-11-30 | 河北医科大学第三医院 | A kind of self-stopping type pressurization bolt component |
| CN111666943A (en) * | 2020-04-20 | 2020-09-15 | 国网浙江省电力有限公司 | Matching detection method and system for bolt and nut of power transmission line based on image recognition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209203471U (en) | A kind of self-stopping type pressurization bolt component | |
| CN104546100B (en) | Dynamic compression locking plate for treatment of femoral neck fracture | |
| CN101856262B (en) | Rear anatomical supporting and locking plate in proximal tibial plateau | |
| CN104783881B (en) | A kind of clavicular fracture Wicresoft Medullary fixation device | |
| CN100563588C (en) | Pedicle vitro restorer | |
| CN201164501Y (en) | Internal fixation device for intertrochanteric fracture | |
| CN2848152Y (en) | Pulling pressurization screw | |
| CN201790888U (en) | Medical perfusion type dynamic hip screw | |
| CN101856261B (en) | Rear anatomical supporting and locking plate outside proximal tibial plateau | |
| CN108904024A (en) | A kind of self-stopping type pressurization bolt component | |
| CN204708960U (en) | A kind of clavicular fracture Wicresoft Medullary fixation device | |
| CN205514863U (en) | Fine motion locking screw | |
| CN107468325A (en) | A kind of rear ankle suitable for Minimally Invasive Surgery dissects locking steel plate | |
| CN201085668Y (en) | Pressurization locking fixer for femoral neck stem | |
| CN201119903Y (en) | Steel plate bracket combined bone-knitting apparatus | |
| CN208910456U (en) | A kind of confrontation sleeve for spinal operation | |
| CN208876722U (en) | A kind of bone surgery anti-back screw | |
| CN203291001U (en) | Thread type lag screw system and special composite screw driver thereof | |
| CN108635031A (en) | A kind of fracture of tibial plateau pressurizer for capableing of self-retaining | |
| CN209186902U (en) | A kind of fracture of tibial plateau pressurizer for capableing of self-retaining | |
| CN206880724U (en) | A kind of tibiofibula draw-gear | |
| CN201469391U (en) | Locking type goose head nail | |
| CN201171709Y (en) | Dynamic pressurization marrow internal fixation device | |
| CN204428138U (en) | The inflatable device of controllable bending treatment compression fracture of vertabral body | |
| CN207928371U (en) | Immerse oneself in position screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190806 Effective date of abandoning: 20191231 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190806 Effective date of abandoning: 20191231 |