CN107822679A - A kind of mechanical tensioning device - Google Patents
A kind of mechanical tensioning device Download PDFInfo
- Publication number
- CN107822679A CN107822679A CN201711298484.2A CN201711298484A CN107822679A CN 107822679 A CN107822679 A CN 107822679A CN 201711298484 A CN201711298484 A CN 201711298484A CN 107822679 A CN107822679 A CN 107822679A
- Authority
- CN
- China
- Prior art keywords
- drawstring
- drag hook
- ratchet
- tensioning device
- sliding block
- 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- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0206—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The present invention discloses a kind of mechanical tensioning device, including drag hook, it is characterised in that：Also include movable stand, the movable stand includes cross bar and two montants, described two montants are respectively fixedly connected with the both ends of cross bar, the first sliding block and the second sliding block are slidably connected on the cross bar, the first fixed pulley and the retaining mechanism between cross bar are provided with first sliding block and the second sliding block, the second fixed pulley is equipped with two montants, first fixed pulley and the second fixed pulley are provided with drawstring, the drag hook is fixedly connected on one end of drawstring, drawstring is connected with the other end of the drawstring, ratchet bar is provided with the drawstring, the clamping mechanism matched with drawstring is provided with the montant.The present invention can overcome the position of drag hook in the prior art to adjust, and tense the pulling force size of breastbone and can not adjust, the problem of causing operation technique inconvenience and the breastbone of patient is damaged.
Description
Technical field
The present invention relates to technical field of medical equipment, more particularly to a kind of mechanical tensioning device.
Background technology
Hospital is carrying out thoracic surgery（Such as pneumonectomy）When, in order to which the chest of patient is opened, typically need first
The breastbone of patient is sawed-off, several drag hooks are then respectively provided with left and right sides of breastbone, are tensed breastbone by drag hook, this
Sample one, the opening of patient chest are just widened, consequently facilitating the progress of operation, but existing drag hook is tensing the mistake of breastbone
Cheng Zhong, general drag hook are fixed, and its position can not adjust, and tense the pulling force size of breastbone and can not also adjust, thus to hand
Art brings many inconvenience, not only influences the operation technique of doctor, it is also possible to which the breastbone of patient is damaged.
The content of the invention
In view of this, it is an object of the invention to provide a kind of mechanical tensioning device, drag hook in the prior art can be overcome
Position can not adjust, and tense the pulling force size of breastbone and can not adjust, and cause operation technique inconvenience and the breastbone of patient is caused to hinder
The problem of evil.
The present invention solves above-mentioned technical problem by following technological means：A kind of mechanical tensioning device, including drag hook, movement
Frame, the movable stand include cross bar and two montants, and described two montants are respectively fixedly connected with the both ends of cross bar, the cross bar
On slidably connect the first sliding block and the second sliding block, be provided with first sliding block and the second sliding block the first fixed pulley and with
Retaining mechanism between cross bar, the second fixed pulley is equipped with two montants, and the first fixed pulley and the second fixed pulley are set
There is drawstring, the drag hook is fixedly connected on one end of drawstring, is connected with drawstring on the other end of the drawstring, on the drawstring
Ratchet bar is provided with, the clamping mechanism matched with drawstring is provided with the montant.
What is reached has the technical effect that, this programme is when to sawed-off breastbone tension, first by drag hook by sawed-off breastbone
Catch on, then slided and the second sliding block by sliding first so that first slides the surface that breastbone is in the second sliding block, and
First is slided using retaining mechanism and the second sliding block is fixed on cross bar, then pulls drawstring, drawstring in the first fixed pulley and
Slided on second fixed pulley, drag hook rises, and breastbone is tensed, fixed drawstring using the clamping mechanism on montant after tension, complete
Into the tension of breastbone, during tension, the regulation of pulling force size can be realized by the length regulation of drawstring, passes through first
The position with the slidable adjustment drag hook of the second sliding block is slided, enhanced convenience is used, the breastbone of patient will not be caused to hinder
Evil.
Further, the clamping mechanism includes card frame, and the card frame is fixedly connected on montant, and the card inframe, which rotates, to be connected
Ratchet is connected to, the pawl end of the ratchet is engaged with ratchet bar, and permanent magnet, the permanent magnet and ratchet are additionally provided with the card frame
The other end it is attracting, be provided with the ratchet rotate ratchet shifting block.In use, the pawl end of ratchet is engaged with ratchet bar, spine
The other end of pawl and permanent magnet are attracting, and when pulling drawstring, drawstring can pull, and then draw high drag hook, but ratchet bar can not be anti-
To motion, if desired counter motion, the shifting block on ratchet can be stirred so that ratchet is rotated, and ratchet and ratchet bar, which depart from, to be nibbled
Close, then by sliding drawstring come counter motion drawstring, the position of drag hook is adjusted, it is very easy to use.
Further, the one end of the drawstring away from drawstring is connected with draw ring.When pulling drawstring, the setting of draw ring conveniently makes
User holds drawstring, the more convenient adjustment that position is carried out to drag hook.
Further, the retaining mechanism includes the screwed hole being arranged on sliding block, and the screwed hole internal thread is connected with spiral shell
Bolt, swing handle is connected with the bolt.In use, can be by grasping swing handle, rotating bolt, using bolt to by sliding block
Fixed on cross bar, by slider locking, the slip of sliding block is avoided.
Further, elastic threads are connected between the drag hook and drawstring.When drag hook tenses breastbone, elastic threads cause drawstring
With certain elasticity, elastic threads have certain elastic buffer, drag hook can be avoided to pull breastbone.
Further, it is provided with sterile-cloth on the inwall of the drag hook.Sterile-cloth is softer, and breastbone is being tensed using drag hook
When, drag hook can be avoided to damage breastbone, sterile-cloth is also possible to prevent infection of the drag hook to breastbone without bacterium.
Further, the bottom of the montant is provided with tripod, and roller is provided with the tripod.The setting of tripod
So that movable stand is placed on the ground more stable, avoid toppling over；And the setting of roller, when needing to move this take-up device
When, the movement of this take-up device can be facilitated by promoting the present apparatus.
Further, the drag hook is removably connected with drawstring., it is necessary to which drag hook is taken off after once operation is finished
Carry out disinfection sterilization treatment, dismountable connection, facilitates the dismounting of drag hook.
Beneficial effects of the present invention：
1st, this programme adjusts the horizontal level of two drag hooks by the first sliding block and the second sliding block, and two are adjusted by clamping mechanism
The vertical position of drag hook, and the size for the adjustment regulation pulling force for passing through vertical position, operation is very easy, also will not be to patient's
Breastbone damages；
2nd, drag hook is removably attachable on drawstring by this programme, drag hook can be disassembled to the processing that carries out disinfection, and pass through
The setting of sterile-cloth, it is entirely avoided infection of the bacterium to breastbone, it is more safe；
3rd, this programme has certain elastic buffer, drag hook can be avoided to pull breastbone by the settings of elastic threads, elastic threads,
Preferably protection patient；
4th, this programme sets tripod and roller in the bottom of montant so that this take-up device is more firm, is also convenient for this tension
The movement of device.
Brief description of the drawings
Fig. 1 is a kind of structural representation of mechanical tensioning device of the present invention；
Fig. 2 is the enlarged drawing at clamping mechanism in Fig. 1；
Fig. 3 is the schematic diagram of Fig. 1 intermediate cam framves.
Wherein：Cross bar 1, montant 2, the first sliding block 3, the second sliding block 4, the first fixed pulley 5, the second fixed pulley 6, drawstring 7, drawing
Hook 8, drawstring 9, ratchet bar 10, card frame 11, ratchet 12, permanent magnet 13, shifting block 14, draw ring 15, bolt 16, swing handle 17, elastic threads
18th, sterile-cloth 19, tripod 20, roller 21.
Embodiment
Below with reference to accompanying drawing, the present invention is described in detail：
As Figure 1-3：A kind of mechanical tensioning device, including drag hook 8, movable stand, the movable stand includes cross bar 1 and two perpendicular
Bar 2, described two montants 2 are respectively fixedly connected with slidably connects the first sliding block 3 and on the both ends of cross bar 1, the cross bar 1
Two sliding blocks 4, the first fixed pulley 5 and the retaining mechanism between cross bar 1 are provided with the sliding block 4 of the first sliding block 3 and second,
The second fixed pulley 6 is equipped with two montants 2, the first fixed pulley 5 and the second fixed pulley 6 are provided with drawstring 7, the drag hook
8 are fixedly connected on one end of drawstring 7, and drawstring 9 is connected with the other end of the drawstring 7, ratchet is provided with the drawstring 9
Bar 10, the clamping mechanism matched with drawstring 9 is provided with the montant 2.
The clamping mechanism includes card frame 11, and the card frame 11 is fixedly connected on montant 2, the company of rotation in the card frame 11
Be connected to ratchet 12, the pawl end of the ratchet 12 is engaged with ratchet bar 10, is additionally provided with permanent magnet 13 on the card frame 11, it is described forever
The other end of magnet 13 and ratchet 12 is attracting, and the shifting block 14 for rotating ratchet 12 is provided with the ratchet 12.In use, ratchet 12
Pawl end engaged with ratchet bar 10, the other end and permanent magnet 13 of ratchet 12 are attracting, and when pulling drawstring 9, drawstring 9 can pull,
And then drag hook 8 is drawn high, but the motion that ratchet bar 10 can not be reverse, if desired counter motion, dialling on ratchet 12 can be stirred
Block 14 so that ratchet 12 is rotated, and ratchet 12 and ratchet bar 10 are disengaged from, then by sliding drawstring 9 come counter motion drawstring
9, the position of drag hook 8 is adjusted, it is very easy to use.
The described one end of drawstring 9 away from drawstring 7 is connected with draw ring 15.When pulling drawstring 9, the setting of draw ring 15 conveniently makes
User holds drawstring 9, the more convenient adjustment that position is carried out to drag hook 8.
The retaining mechanism includes the screwed hole being arranged on sliding block, and the screwed hole internal thread is connected with bolt 16, institute
State and swing handle 17 is connected with bolt 16.In use, can be by grasping swing handle 17, rotating bolt 16 is right using bolt 16
Sliding block is fixed on cross bar 1, by slider locking, avoids the slip of sliding block.
Elastic threads 18 are connected between the drag hook 8 and drawstring 7.When drag hook 8 tenses breastbone, elastic threads 18 cause drawstring
7 have certain elasticity, and elastic threads 18 have certain elastic buffer, drag hook 8 can be avoided to pull breastbone.
Sterile-cloth 19 is provided with the inwall of the drag hook 8.Sterile-cloth 19 is softer, when tensing breastbone using drag hook 8,
Drag hook 8 can be avoided to damage breastbone, sterile-cloth 19 is also possible to prevent infection of the drag hook 8 to breastbone without bacterium.
The bottom of the montant 2 is provided with tripod 20, and roller 21 is provided with the tripod 20.Tripod 20 is set
Put so that movable stand is placed on the ground more stable, avoid toppling over；And the setting of roller 21, when needing to move this tension dress
When putting, the movement of this take-up device can be facilitated by promoting the present apparatus.
The drag hook 8 is removably connected with drawstring 7., it is necessary to which drag hook 8 is taken off into progress after once operation is finished
Sterilization processing, dismountable connection, facilitates the dismounting of drag hook 8.
The operating method of this programme：
When to sawed-off breastbone tension, sawed-off breastbone is caught on by drag hook first, then slided and the by sliding first
Two sliding blocks 4 so that first slides the surface that breastbone is in the second sliding block 4, then grasps swing handle 17, rotating bolt
16, using bolt 16 to sliding block is fixed on cross bar 1, by slider locking, avoid the slip of sliding block；Then draw ring is hand-pulled
15, drawstring 9 is pulled, because the pawl end of ratchet 12 is engaged with ratchet bar 10, the other end and permanent magnet 13 of ratchet 12 are attracting, work as drawing
Dynamic drawstring 9, drawstring 9 can pull, and then drawstring 7 slides on the first fixed pulley 5 and the second fixed pulley 6, and drag hook 8 rises, will
Breastbone is tensed, and during tension, the regulation of pulling force size can be realized by the regulation of the length of drawstring 9 because drag hook 8 with
Elastic threads 18 are connected between drawstring 7, elastic threads 18 have certain elastic buffer, drag hook 8 can be avoided to pull breastbone.
After having used, the shifting block 14 on ratchet 12 can be stirred so that ratchet 12 rotates, and ratchet 12 and ratchet bar 10 are de-
From engagement, then by sliding drawstring 9 come counter motion drawstring 9, drag hook 8 is declined, drag hook 8 is removed from breastbone.
If desired this take-up device is moved, because the bottom of montant 2 is provided with tripod 20, rolling is provided with tripod 20
Wheel 21, can pass through the present apparatus in rotary moving of roller 21 by promoting the present apparatus.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that, technical scheme can be modified
Or equivalent substitution, without departing from the objective and scope of technical solution of the present invention, it all should cover the claim in the present invention
Among scope.The present invention be not described in detail technology, shape, construction part be known technology.
Claims (8)
1. a kind of mechanical tensioning device, including drag hook, it is characterised in that：Also include movable stand, the movable stand include cross bar and
Two montants, described two montants be respectively fixedly connected with slidably connected on the both ends of cross bar, the cross bar the first sliding block and
Second sliding block, the first fixed pulley and the retaining mechanism between cross bar, institute are provided with first sliding block and the second sliding block
State and the second fixed pulley is equipped with two montants, the first fixed pulley and the second fixed pulley are provided with drawstring, and the drag hook, which is fixed, to be connected
It is connected on one end of drawstring, drawstring is connected with the other end of the drawstring, ratchet bar, the montant is provided with the drawstring
On be provided with the clamping mechanism matched with drawstring.
A kind of 2. mechanical tensioning device according to claim 1, it is characterised in that：The clamping mechanism includes card frame, institute
State card frame to be fixedly connected on montant, the card inframe is rotatably connected to ratchet, and the pawl end of the ratchet is engaged with ratchet bar, institute
State and permanent magnet is additionally provided with card frame, the other end of the permanent magnet and ratchet is attracting, and rotation ratchet is provided with the ratchet
Shifting block.
A kind of 3. mechanical tensioning device according to claim 2, it is characterised in that：The one end of the drawstring away from drawstring connects
It is connected to draw ring.
A kind of 4. mechanical tensioning device according to claim 3, it is characterised in that：The retaining mechanism includes being arranged on cunning
Screwed hole on block, the screwed hole internal thread are connected with bolt, swing handle are connected with the bolt.
A kind of 5. mechanical tensioning device according to claim 4, it is characterised in that：It is connected between the drag hook and drawstring
Elastic threads.
6. according to a kind of mechanical tensioning device described in claim any one of 1-5, it is characterised in that：On the inwall of the drag hook
It is provided with sterile-cloth.
A kind of 7. mechanical tensioning device according to claim 6, it is characterised in that：The bottom of the montant is provided with triangle
Frame, roller is provided with the tripod.
A kind of 8. mechanical tensioning device according to claim 7, it is characterised in that：The drag hook removably connects with drawstring
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711298484.2A CN107822679A (en) | 2017-12-08 | 2017-12-08 | A kind of mechanical tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711298484.2A CN107822679A (en) | 2017-12-08 | 2017-12-08 | A kind of mechanical tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107822679A true CN107822679A (en) | 2018-03-23 |
Family
ID=61642070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711298484.2A Withdrawn CN107822679A (en) | 2017-12-08 | 2017-12-08 | A kind of mechanical tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107822679A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108938135A (en) * | 2018-05-25 | 2018-12-07 | 华建海 | A kind of veterinary inspection crane |
| CN109009481A (en) * | 2018-09-20 | 2018-12-18 | 贵州省第三人民医院 | A kind of angle adjustable and facilitate fixed auricle pulling device |
| CN110353744A (en) * | 2019-07-30 | 2019-10-22 | 青岛大学附属医院 | A kind of Sternal distraction device for thoracic surgery clinic |
| CN113208667A (en) * | 2020-12-02 | 2021-08-06 | 王阳 | Multifunctional flap retractor for mammary gland operation |
-
2017
- 2017-12-08 CN CN201711298484.2A patent/CN107822679A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108938135A (en) * | 2018-05-25 | 2018-12-07 | 华建海 | A kind of veterinary inspection crane |
| CN109009481A (en) * | 2018-09-20 | 2018-12-18 | 贵州省第三人民医院 | A kind of angle adjustable and facilitate fixed auricle pulling device |
| CN110353744A (en) * | 2019-07-30 | 2019-10-22 | 青岛大学附属医院 | A kind of Sternal distraction device for thoracic surgery clinic |
| CN113208667A (en) * | 2020-12-02 | 2021-08-06 | 王阳 | Multifunctional flap retractor for mammary gland operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180323 |
|
| WW01 | Invention patent application withdrawn after publication |