CN110279453A - A kind of band knife disabler and puncture outfit with self-locking function - Google Patents
A kind of band knife disabler and puncture outfit with self-locking function Download PDFInfo
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- CN110279453A CN110279453A CN201910521263.XA CN201910521263A CN110279453A CN 110279453 A CN110279453 A CN 110279453A CN 201910521263 A CN201910521263 A CN 201910521263A CN 110279453 A CN110279453 A CN 110279453A
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- spring
- locking
- sliding part
- protective case
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- 230000001681 protective effect Effects 0.000 claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
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- 238000000429 assembly Methods 0.000 claims description 35
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 32
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 206010052428 Wound Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002324 minimally invasive surgery Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 210000003815 abdominal wall Anatomy 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 230000005284 excitation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002441 reversible effect Effects 0.000 description 1
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B2017/347—Locking means, e.g. for locking instrument in cannula
Abstract
The band knife disabler that the present invention relates to a kind of with self-locking function; including toolbox, self-locking mechanism, unlocking mechanism, support component and handle; the self-locking mechanism passes through spring and direction switching mechanism; realize along knife bar length direction movement with the mutual conversion between the movement of vertical knife bar length direction, to realize the self-locking function of protective case.The band knife puncture outfit that the present invention also provides a kind of with self-locking function.The present invention is substantially that the fixation and movement of protective case are realized by a kind of mechanical mechanism, and after starting trigger button, the limitation of protective case is released from, can be up and down；After trigger button sets back, protective case is limited again, stiff.
Description
Technical field
The invention belongs to Minimally Invasive Surgery instrument field, specifically a kind of resistance with piercing blade, with self-locking function
Fill in device and puncture outfit.
Background technique
One-time-use Perforator product is mainly used in Minimally Invasive Surgery, is mainly made of two components, first is that casing
Component, second is that obstruction device assembly.Wherein obstruction device assembly is divided into no knife disabler and with two kinds of knife disabler again.Without knife disabler
Generally by plastic material injection molding, metal blade is free of；Band knife disabler then includes metal blade.Using no knife disabler
Puncture outfit is no knife puncture outfit, such as Fig. 1-is shown in Fig. 4 like that in China Patent Publication No. CN1689531A, is hindered using band knife
The puncture outfit of plug device is shown in Fig. 2 such in band knife puncture outfit, such as China Patent Publication No. CN204768521U.
When clinical use, entire puncture outfit product is inserted into human abdomen, and after penetrating abdominal tissues, obstruction device assembly is pulled out
Out, sheath assembly is then retained on human body, and such human abdominal cavity is just connected to the external world by casing.Doctor can by casing this
One channel of sample is operated patient.Compared to open surgery, Minimally Invasive Surgery is with wound is small, exempts from suture, wound
Restore the features such as fast.Be advantageous in that there is a presence of metal blade with knife puncture outfit, puncture process quickly, caused by wound it is small,
The features such as wound healing is fast.
Band knife puncture outfit, will to its security requirement due to having certain risk when in use with metal blade
It is higher.It is required that its using preceding blade cannot exposed (blade is protected), only by starting trigger button after blade
It can expose.After penetrating human body abdominal wall tissue during operation puncturing, it is desirable that blade is protected again immediately (prevents knife
Piece is damaged to human organ).
It is exactly to the total requirement of knife puncture outfit: using preceding maloperation in order to prevent, it is desirable that blade cannot expose；When use
Blade exposes；Blade is protected again after penetrating human body stomach wall.Our this defencive functions are referred to as the self-locking function with knife puncture outfit
Energy.After starting trigger button, blade works；After trigger button return, blade is protected.
Band knife puncture outfit in the prior art does not have self-locking function, can cause knife due to maloperation in operation
Piece triggering, to be easy to cause contingency.
Based on this, the present invention is specifically proposed.
Summary of the invention
In order to overcome the above-mentioned problems in the prior art, the present invention provides a kind of band knife obstruction with self-locking function
Device can reliablely and stablely realize the triggering and protection of blade with unique self-locking mechanism.Band knife disabler is not having
When starting trigger button, blade is limited in inside protective case, will not be pierced by protective case, play a protective role；Work as trigger button
When starting, protective case can be bounced back by after resistance, until blade is gradually exposed, can play puncture dissection；As
When being gradually reduced with resistance on the protective sleeve, protective case can restore to original position, to protect blade again.
The present invention is substantially that the fixation and movement of protective case are realized by a kind of mechanical mechanism, after starting trigger button,
The limitation of protective case is released from, can be up and down；After trigger button sets back, protective case is limited again, stiff.
Specifically, the present invention provide it is a kind of with self-locking function band knife disabler, including toolbox, self-locking mechanism,
Unlocking mechanism, support component and handle, the toolbox include knife bar, protective case and blade, and knife bar is fixedly connected on handle
On, protective case is connected on self-locking mechanism, and self-locking mechanism, unlocking mechanism and handle are all disposed in support component, wherein
The self-locking mechanism is realized long along the movement of knife bar length direction and vertical knife bar by spring and direction switching mechanism
The mutual conversion between the movement in direction is spent, under the premise of the button (31) in unlocking mechanism (30) has activated, in protective case
(12) when the resistance encountered on is less than the elastic force that self-locking spring (24) provide, self-locking mechanism (20) is fixed protective case (12), so that
Blade (13) will not expose except protective case (12)；
The unlocking mechanism is used to provide the pressing force along knife bar length direction, realizes the unlock of protective case, so that blade reveals
Out except protective case.
Further, the self-locking mechanism includes resilient arm assemblies, sliding part, rotating member, self-locking spring and second spring,
One end of wherein resilient arm assemblies, sliding part and the direction switching mechanism of rotating member composition, resilient arm assemblies and protective case is solid
Fixed connection；
Resilient arm assemblies are capable of forming sliding with sliding part and rotating member respectively by different positions on knife bar length direction
Face contact；
Rotating member is contacted by cursor with resilient arm assemblies, and is contacted by shifting block with sliding part, cursor with
Shifting block is in substantially vertical angle；
Second spring is set on sliding part, provides pressure for sliding part；
Self-locking spring is arranged between resilient arm assemblies and handle, and the elastic force direction of self-locking spring is parallel with knife bar length direction.
Further, the resilient arm assemblies include elastic arm pedestal and elastic arm, and the elastic arm is by elastic material system
It forms, is vertically arranged on elastic arm pedestal, elastic arm the middle of the base offers the through-hole for being arranged protective case, elasticity
Arm base edge is provided with the first passive card plane with sliding part cooperation.
Further, the end of elastic arm is provided with protrusion, there is the with the rotation arm contact of rotating member in the protrusion
One drive surface and the second drive surface intersected with the first drive surface.
Further, the sliding part is arranged in parallel including a D-shaped block, a square block, a guide post and two
U-shaped fork, wherein the arc end of D-shaped block is arranged in the upper end in a face of square block, and guide post and two U-shaped forks are arranged in side
On another face of shape block, and two U-shaped forks are separately positioned on the opposite end of the lower end in the square block face, guide post setting
At the middle part in the square block face.
Further, the first active card plane is provided with below the square block, for first with elastic arm pedestal
Passive card plane is slidably matched.
Further, the third being both provided on two galianconism of the D-shaped block for cooperating with unlocking mechanism is driven
Face, the angle that this third is formed by the upper surface of drive surface and D-shaped block is greater than 45 degree and less than 90 degree.
Further, the lower part of the U-shaped fork is provided with spacing block set.
Further, the rotating member includes shaft, shifting block and cursor, and shifting block and cursor, which are all fixed with shaft, to be connected
It connects, in the circumferential direction along shaft, shifting block and cursor are angled mutually.Preferably vertical angle.
Further, the cursor far from turn the tip of the axis with first by drive surface and second by drive surface, they
Respectively in resilient arm assemblies the first drive surface and the second drive surface cooperate.
Further, unlocking mechanism includes button and reset spring, and third drive surface is provided on button and is driven with third
Second passive card plane of dynamic face intersection, wherein third drive surface is used to be slidably matched with the third on sliding part by drive surface,
Second passive card plane with the second active card plane on sliding part for being slidably matched；The cylinder of button lower part is multiple for accommodating
Position spring.
Further, the support component includes pedestal, sliding part supporting table, rotating member supporting table, second spring baffle
With reset spring guide post, base central is provided with through-hole, for passing through for toolbox and resilient arm assemblies and self-locking spring, slides
Part supporting table is used to support sliding part, and parallel half slot is provided in rotating member supporting table, is used to support the shaft of rotating member,
Second spring baffle is used for the positioning and guiding of reset spring for blocking second spring, reset spring guide post；Sliding part support
Platform, rotating member supporting table, second spring baffle and reset spring guide post are all disposed on pedestal.
Further, the handle includes that buckle and screw hole column, two buckles are respectively used to for handle to be mounted on support group
In two slots of part, screw hole column with the end of knife bar for being threadedly coupled.
The band knife puncture outfit that the present invention also provides a kind of with self-locking function, it includes have above-mentioned to have self-locking function
Band knife disabler.
Advantages of the present invention: 1, it by spring and direction switching mechanism, realizes the movement along knife bar length direction and hangs down
Mutual conversion between the movement in straight knife pole length direction, to realize the self-locking function of protective case；2, it after button excitation, is protecting
When resistance on sheath is less than the elastic force that spring provides, the fixed protective case of self-locking mechanism so that blade no longer expose protective case it
Outside；3, by setting resilient arm assemblies, sliding part and rotating member, so that can be locked mutually between these three components, thus really
Blade can be covered in time by protecting protective case.
Detailed description of the invention
Fig. 1 be the present invention have self-locking function with a kind of structural schematic diagram of embodiment of knife disabler, wherein (a) is touching
State when hair button is not pressed, blade does not expose at this time；(b) state when pressing for trigger button, blade has revealed at this time
Out.
Fig. 2 is the enlarged diagram of Fig. 1.
Fig. 3 is the structural blast schematic diagram with a kind of embodiment of knife disabler that the present invention has self-locking function.
Fig. 4 is the partial structurtes amplification removed after handle with a kind of embodiment of knife disabler that the present invention has self-locking function
Schematic diagram.
Fig. 5 be the present invention have self-locking function with a kind of structural schematic diagram of the self-locking mechanism of embodiment of knife disabler.
Fig. 6 is the resilient arm assemblies structural schematic diagram of self-locking mechanism in Fig. 5.
Fig. 7 is the slider structure schematic diagram of self-locking mechanism in Fig. 5.
Fig. 8 is the rotating member structural schematic diagram of self-locking mechanism in Fig. 5.
Fig. 9 be the present invention have self-locking function with a kind of structural schematic diagram of the unlocking mechanism of embodiment of knife disabler.
Figure 10 be the present invention have self-locking function with a kind of structural schematic diagram of the support component of embodiment of knife disabler.
Figure 11 be the present invention have self-locking function with a kind of structural schematic diagram of the handle of embodiment of knife disabler.
Wherein, 10- toolbox, 11- knife bar, 12- protective case, 121- knife seam, 122- first part, 123- second
Point, 13- blade, 20- self-locking mechanism, 21- resilient arm assemblies, 211- elastic arm pedestal, the passive card plane of 2111- first, 212-
Elastic arm, 213- protrusion, the first drive surface of 2131-, the second drive surface of 2132-, 22- sliding part, 221-D shape block, 2211- are short
Arm, 2212- third is by drive surface, 2213- the second active card plane, 222- square block, 2221- the first active card plane, 223-
Guide post, 224-U type fork, 2241- spacing block set, 23- rotating member, 231- shaft, 232- shifting block, 233- cursor, 2331- the
One by drive surface, and 2332- second is by drive surface, 24- self-locking spring, 25- second spring, 30- unlocking mechanism, 31- button, 311-
Third drive surface, the passive card plane of 312- second, 313- cylinder, 32- reset spring, 40- support component, 41- pedestal, 42- are sliding
Members platform, 43- rotating member supporting table, 44- second spring baffle, 45- reset spring guide post, 46- slot, 47- positioning column,
50- handle, 51- buckle, 52- threaded post, 60- disabler cap.
Specific embodiment
Below in conjunction with attached drawing 1-11, the present invention is described further.
As Figure 1-Figure 4, the band knife disabler with self-locking function of the invention includes toolbox 10, self-locking mechanism
20, unlocking mechanism 30, support component 40 and handle 50, toolbox 10 include knife bar 11, protective case 12 and blade 13, knife bar 11
It is fixedly connected on handle 50, protective case 12 is connected on self-locking mechanism 20, and self-locking mechanism 20, unlocking mechanism 30 and handle 50 are all
It is arranged in support component 40.
Self-locking mechanism 20 realizes the movement along 11 length direction of knife bar by spring (24,25) and direction switching mechanism
With the mutual conversion between the movement of vertical knife bar length direction, to realize the self-locking function of protective case 12；In protective case 12
On resistance when being less than the elastic force that spring 24 provides, the fixed protective case 12 of self-locking mechanism 20, so that blade 13 no longer exposes protection
Except set 12.
Unlocking mechanism 30 is used to provide the pressing force along 11 length direction of knife bar, realizes the unlock of protective case 12, so that
Blade 13 exposes except protective case 12.
The top of knife bar 11 is provided with blade 13, and knife bar 11 and blade 13 are all disposed within inside protective case 12, protective case 12
An end it is tapered, and tapered distal end have for be pierced by blade 13 knife stitch 121.
In a preferred embodiment, protective case 12 is assembly type, including first part 122 and second part 123, the
A part 122 is connected through a screw thread or is clamped with second part 123.
The end setting knife of first part 122 stitches 121；The end self-locking connecting mechanism 20 of second part 123.
As shown in Figure 5-Figure 8, self-locking mechanism 20 includes resilient arm assemblies 21, sliding part 22, rotating member 23, self-locking spring 24
With second spring 25, wherein resilient arm assemblies 21, sliding part 22 and rotating member 23 form direction switching mechanism.
Resilient arm assemblies 21 are fixedly connected with one end of protective case 12, and the two is under the action of self-locking spring 24, along knife
The length direction of bar 11 moves in the same direction.Resilient arm assemblies 21 can be integrally manufactured with protective case 12.
Resilient arm assemblies 21 pass through different position (i.e. the first passive card plane 2111 in Fig. 6, the first drive surface
2131, the second drive surface 2132), sliding surface, which is capable of forming, on knife bar length direction with sliding part 22 and rotating member 23 respectively connects
Touching.
Rotating member 23 is contacted with resilient arm assemblies 21 by cursor 233 (i.e. by first in Fig. 8 by drive surface
2331, second contacted respectively with the first drive surface 2131, the second drive surface 2132 in Fig. 6 by drive surface 2332), and by dialling
Block 232 is contacted (i.e. shifting block 232 in Fig. 8 is contacted with the U-shaped fork 224 in Fig. 7), cursor 233 with sliding part 22
It is in substantially vertical angle with shifting block 232, it is preferable that perpendicular angle.
Second spring 25 is set on sliding part 22, provides pressure for sliding part 22.
Self-locking spring 24 is arranged between resilient arm assemblies 21 and handle 50, and the elastic force direction of self-locking spring 24 and knife bar are long
Degree direction is parallel, and the elastic force of such self-locking spring 24 can push protective case 12 to move along knife bar length direction.
As shown in fig. 6, resilient arm assemblies 21 include elastic arm pedestal 211 and elastic arm 212, elastic arm pedestal 211 is band
The cross structure of through-hole, two elastic arms 212 are separately positioned on the opposite sides of elastic arm pedestal 211, on elastic arm pedestal 211
It is provided with through-hole, self-locking spring installation confined planes, which is to cut circle, is fool-proof design, facilitates elastic arm pedestal 211 can not
It is rotatably mounted on the end of protective case 12, so that the working face of two elastic arms 212 is just towards rotating member 23.Elastic arm
212 are made by elastic material, a small amount of elastic deformation can be carried out in vertical knife bar length direction, to allow rotating member
23 cursor 233 is slid onto the position of locking elastic arm component 21.Elastic arm 212 is vertically arranged on elastic arm pedestal 211,
211 edge of elastic arm pedestal is provided with the first passive card plane 2111 cooperated with sliding part 22, the first passive card plane
2111 cooperate with the first active card plane 2221 on sliding part 22, for the locking of resilient arm assemblies 21, are equally also used for protecting
The locking of sheath 12.
The end of elastic arm 212 is provided with protrusion 213, has in the protrusion 213 and to contact with the cursor 233 of rotating member 23
First drive surface 2131 and the second drive surface 2132 intersected with the first drive surface 2131, are usually arranged the first drive surface 2131
At inclined curved surface, is conducive to reduce the frictional force between curved surface, the second drive surface 2132 is usually arranged to inclined plane, is had
Conducive to the frictional force for increasing inclined surface.
As shown in fig. 7, sliding part 22 includes a guide post 223 of square block 222, one of D-shaped block 221, one and two
U-shaped fork 224 disposed in parallel, wherein the upper end in a face of square block 222, guide post is arranged in the arc end of D-shaped block 221
223 and two U-shaped forks 224 be arranged on another face of square block 222, and two U-shaped forks 224 are separately positioned on square block
The middle part in 222 face of square block is arranged in the opposite end of the lower end in 222 faces, guide post 223, and it is right to be conducive to second spring 25
The balanced of sliding part 22 pushes.
Square block 222 has 6 faces, and the plane comprising two large area in left and right is put down with upper and lower, the small area of front and back four
Face, the upper end of one of large-area planar are fixedly connected with the arc end of D-shaped block 221, another opposite large area is flat
Middle face is fixedly installed guide post 223, is arranged in parallel before and after the face lower end and pitches 224 there are two U-shaped.Below square block 222
It is provided with the first active card plane 2221, for being slidably matched with the first of elastic arm pedestal 211 the passive card plane 2111.The two
When overlapping, the locking of resilient arm assemblies 21 may be implemented；When the two is detached from, the unlock of resilient arm assemblies 21 may be implemented.
The third for cooperating with unlocking mechanism 30 is provided on the galianconism 2211 of D-shaped block 221 by drive surface 2212, this
Three angles formed by the upper surface of drive surface 2212 and D-shaped block 221 are greater than 45 degree and less than 90 degree, preferably 50 degree -75 degree.
The lower part of U-shaped fork 224 is provided with spacing block set 2241.The main function of spacing block set 2241 is the first active of limitation
The contact area of card plane 2221 and the first passive card plane 2111, so that this pair of of card plane (2221,2111) be avoided to grasp
The case where can not being detached from work.
As shown in figure 8, rotating member 23 includes shaft 231, shifting block 232 and cursor 233, shifting block 232 and cursor 233 are all
It is fixedly connected with shaft 231, in the circumferential direction along shaft 231, shifting block 232 and cursor 233 are angled mutually.It is excellent
It is selected as vertical angle.
Cursor 233 far from the end of shaft 231 have first by drive surface 2331 and second by drive surface 2332, they
Respectively in resilient arm assemblies 21 the first drive surface 2131 and the second drive surface 2132 cooperate.
As shown in figure 9, unlocking mechanism 30 includes button 31 and reset spring 32, third drive surface is provided on button 31
311 and the intersecting therewith second passive card plane 312, wherein third drive surface 311 with the third on sliding part 22 for being driven
Dynamic face 2212 is slidably matched, and the second passive card plane 312 is used to be slidably matched with the second active card plane 2213 of sliding part 22；
The cylinder 313 of 31 lower part of button is for accommodating reset spring 32.Push button 31 will drive the sliding part in self-locking mechanism 20
22 is mobile, so as to cause the separation of the first active card plane 2221 and the first passive card plane 2111, so that protective case 12 obtains
Unlock, can carry out along moving on knife bar length direction, to expose the blade 13 for ensconcing the inside.
As shown in Figure 10, support component 40 includes pedestal 41, sliding part supporting table 42, rotating member supporting table 43, the second bullet
Spring baffle 44 and reset spring guide post 45,41 center of pedestal are provided with through-hole, for toolbox 10 and resilient arm assemblies 21 and certainly
Lock spring 24 passes through, and sliding part supporting table 42 is used to support sliding part 22, and parallel half is provided in rotating member supporting table 43
Circular groove 431 is used to support the shaft 231 of rotating member 23, and second spring baffle 44 for blocking second spring 25, lead by reset spring
Column 45 is used for the positioning and guiding of reset spring 32；Sliding part supporting table 42, rotating member supporting table 43,44 and of second spring baffle
Reset spring guide post 45 is all disposed on pedestal 41.The slot 46 and installation obstruction of installation handle 50 are additionally provided on pedestal 41
The positioning column 47 of device cap 60.
As shown in figure 11, handle 50 includes buckle 51 and screw hole column 52, and two buckles 51 are respectively used to install on handle 50
In two slots 46 of support component 40, screw hole column 52 with the end of knife bar 11 for being threadedly coupled.
The band knife puncture outfit that the present invention also provides a kind of with self-locking function, it includes have casing and provided by the invention
Band knife disabler with self-locking function.
It should be noted that drive surface in the present invention and by drive surface be it is corresponding, drive surface is usually active,
It is usually passively by drive surface；Active card plane and passive card plane in the present invention are also corresponding, active card plane
It is the face for actively realizing engaging positioning, passive card plane is the passive face for realizing engaging positioning.
The implementation principle with knife disabler and puncture outfit with self-locking function of the invention is as follows: under original state, pressing
Button 31 is not pressed, and the first active card plane 2221 of 22 bottom end of sliding part is by the first passive detent on elastic arm pedestal 211
Face 2111 is blocked, and the movement of protective case 12 is hindered, so blade 13 is just protected in the inside of protective case 12, will not be exposed.
After pressing lower button 31, the third in the meeting extruded slider 22 of third drive surface 311 on button 31 is caused by drive surface 2212
Sliding part 22 is mobile.When button 31 is pressed into bottommost, 22 amount of movement of sliding part reaches maximum, while the third on button 31
Drive surface 311 no longer drives the third on sliding part 22 by drive surface 2212, and sliding part 22 can be under the action of second spring 25
Reverse movement, until being pushed down button 31 by limitation face (the second passive card plane 312).Button 31 will be kept in this way
Bottommost (rather than being restored to original position by reset spring 32).At the same time, the first passive detent on elastic arm pedestal 211
The locking in face 2111 has released, i.e., after the movement of sliding part 22, the first active card plane 2221 of bottom end no longer limits protection
The movement of set 12, protective case 12 are unlocked.
Button 31 is pressed before clinical use, at this time unlock protective case 12, in surgical procedure, puncture outfit can penetrate trouble
Person's tissue, protective case 12 can be mobile because of the opposite direction by resistance and to puncture, during protective case 12 is mobile,
Blade 13 can be gradually exposed, to be more advantageous to cutting tissue, facilitate puncture.At the same time, in the movement of protective case 12
In the process, the first drive surface 2131 being mounted in the resilient arm assemblies 21 on protective case 12 can be with the first quilt on rotating member 23
2331 sliding contact of drive surface is driven until the protrusion 213 in resilient arm assemblies 21 is moved to the second of breakthrough rotating member 23
It (second is fit together at this time by the second drive surface 2132 in drive surface 2332 and protrusion 213) on face 2332, with puncture
Device gradually penetrates tissue, and the resistance acted on protective case 12 can be progressively decreased, and acts on protection when resistance is less than
When the elastic force of the self-locking spring 24 on set 12, protective case 12 can move forward under the action of self-locking spring 24, while elastic arm
Second on the second drive surface 2132 driving rotating member 23 on component 21 by drive surface 2332, and then drive rotating member 23 along
Shaft 231 rotates, and the shifting block 232 on rotating member 23 stirs the U-shaped fork 224 on sliding shoe 22, will drive the movement of sliding part 22；
When rotating member 23 is turned to maximum rotation angle by the second drive surface 2132 in resilient arm assemblies 21, shifting block 232 will also be slided
Moving part 22 toggles it to maximum displacement, and sliding part 22 can be by button 31 by limitation face (the second passive card plane 312) solution at this time
Except locking, button 31 can be restored to initial position under the elastic force effect of reset spring 32, while protective case 12 also can be self-locking
Restore under the action of spring 24 to initial position, and the first active card plane 2221 of 22 bottom end of sliding part is by elastic arm pedestal
The first passive card plane 2111 on 211 is blocked, and hinders the recycling campaign of protective case 12, protective case 12 is locked again, knife
Piece 13 cannot expose, and play self-locking.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all any modification, equivalent substitution, improvement and etc. on the basis of technical solution of the present invention, done should all
Including within protection scope of the present invention.
Claims (9)
1. a kind of band knife disabler with self-locking function, including toolbox (10), self-locking mechanism (20), unlocking mechanism
(30), support component (40) and handle (50), the toolbox (10) include knife bar (11), protective case (12) and blade
(13), knife bar (11) is fixedly connected on handle (50), and protective case (12) is connected on self-locking mechanism (20), self-locking mechanism
(20), unlocking mechanism (30) and handle (50) are all disposed on support component (40), which is characterized in that
The self-locking mechanism (20) by spring and direction switching mechanism, realize movement along knife bar length direction with it is vertical
Mutual conversion between the movement of knife bar length direction, under the premise of the button (31) in unlocking mechanism (30) has activated,
When the resistance encountered on protective case (12) is less than the elastic force that self-locking spring (24) provide, the fixed protective case of self-locking mechanism (20)
(12), so that blade (13) will not expose except protective case (12)；
The unlocking mechanism (30) is used to provide the pressing force along knife bar length direction, realizes the unlock of protective case (12), makes
Blade (13) are obtained to expose except protective case (12).
2. the band knife disabler with self-locking function as described in claim 1, which is characterized in that self-locking mechanism (20) packet
Resilient arm assemblies (21), sliding part (22), rotating member (23), self-locking spring (24) and second spring (25) are included, wherein elastic arm
Component (21), sliding part (22) and rotating member (23) form the direction switching mechanism,
Resilient arm assemblies (21) are fixedly connected with one end of protective case (22)；
Resilient arm assemblies (21), respectively can be in knife bar length side with sliding part (22) and rotating member (23) by different positions
It is upwardly formed sliding face contact；
Rotating member (23) is contacted by cursor (233) with resilient arm assemblies (21), and passes through shifting block (232) and sliding part
(22) it is contacted, cursor (233) is in substantially vertical angle with shifting block (232)；
Second spring (25) is set on sliding part (22), provides pressure for sliding part (22)；
Self-locking spring (24) is arranged between resilient arm assemblies (21) and handle (50), the elastic force direction of self-locking spring (24) and knife
Pole length direction is parallel.
3. the band knife disabler with self-locking function as claimed in claim 2, which is characterized in that the resilient arm assemblies (21)
Including elastic arm pedestal (211) and elastic arm (212), the elastic arm (212) is made by elastic material, is vertically arranged
On elastic arm pedestal (211), the through-hole for being arranged protective case (12), elastic arm are offered in the middle part of elastic arm pedestal (211)
Pedestal (211) edge is provided with the first passive card plane (2111) with sliding part (22) cooperation.
4. the band knife disabler with self-locking function as claimed in claim 2, which is characterized in that the sliding part (22) includes
One D-shaped block (221), a square block (222), a guide post (223) and two U-shaped forks (224) disposed in parallel, wherein
The arc end of D-shaped block (221) is arranged in the upper end in a face of square block (222), guide post (223) and two U-shaped forks (224)
It is arranged on another face of square block (222), and two U-shaped forks (224) are separately positioned under square block (222) face
The opposite end at end, guide post (223) are arranged at the middle part in square block (222) face.
5. the band knife disabler with self-locking function as claimed in claim 2, which is characterized in that the rotating member (23) includes
Shaft (231), shifting block (232) and cursor (233), shifting block (232) and cursor (233) are all fixedly connected with shaft (231),
In the circumferential direction along shaft (231), shifting block (232) and cursor (233) are angled mutually, preferably vertical angle
Degree.
6. the band knife disabler with self-locking function as claimed in claim 2, which is characterized in that unlocking mechanism (30) includes pressing
Button (31) and reset spring (32) are provided with third drive surface (311) and the second intersecting therewith active detent on button (31)
Face (312), wherein third drive surface (311) is used to be slidably matched with the third on sliding part (22) by drive surface (2212), the
Two active card planes (312) are used to be slidably matched with the second passive card plane (2213) of sliding part (22)；Button (31) lower part
Cylinder (313) in for accommodating reset spring (32).
7. the band knife disabler with self-locking function as claimed in claim 2, which is characterized in that support component (40) packet
Include pedestal (41), sliding part supporting table (42), rotating member supporting table (43), second spring baffle (44) and reset spring guide post
(45), pedestal (41) center is provided with through-hole, for leading to for toolbox (10) and resilient arm assemblies (21) and self-locking spring (24)
It crosses, sliding part supporting table (42) is used to support sliding part (22), and rotating member supporting table is provided with parallel half slot on (43)
(431), it is used to support the shaft (231) of rotating member (23), second spring baffle (44) is resetted for blocking second spring (25)
Spring guide pillar (45) is used for the positioning and guiding of reset spring (32)；Sliding part supporting table (42), rotating member supporting table (43),
Two spring stops (44) and reset spring guide post (45) are all disposed on pedestal (41).
8. the band knife disabler with self-locking function as claimed in claim 2, which is characterized in that the handle (50) includes card
Button (51) and screw hole column (52), two buckles (51) are respectively used to for handle (50) to be mounted on two slots of support component (40)
(46) in, screw hole column (52) with the end thread of knife bar (11) for connecting.
9. a kind of band knife puncture outfit with self-locking function, which is characterized in that including casing and as described in claim 1-8 is any
With self-locking function band knife disabler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521263.XA CN110279453B (en) | 2019-06-17 | 2019-06-17 | Cutter-carrying stopper with self-locking function and puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521263.XA CN110279453B (en) | 2019-06-17 | 2019-06-17 | Cutter-carrying stopper with self-locking function and puncture outfit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110279453A true CN110279453A (en) | 2019-09-27 |
| CN110279453B CN110279453B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910521263.XA Active CN110279453B (en) | 2019-06-17 | 2019-06-17 | Cutter-carrying stopper with self-locking function and puncture outfit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110279453B (en) |
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| CN206809317U (en) * | 2016-12-09 | 2017-12-29 | 成都五义医疗科技有限公司 | A kind of two halves double mode is without knife puncture needle and puncture outfit |
| CN109223127A (en) * | 2018-09-07 | 2019-01-18 | 天津优外医疗器材制造有限公司 | A kind of lock ring structure, sheath assembly and the puncture outfit of singlehanded unlock |
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|---|---|---|---|---|
| US5538509A (en) * | 1994-01-31 | 1996-07-23 | Richard-Allan Medical Industries, Inc. | Trocar assembly |
| CN101366633A (en) * | 2001-01-19 | 2009-02-18 | 松下电器产业株式会社 | Lancet-integrated sensor, measuring device for lancet-integrated sensor, and cartridge |
| KR101243381B1 (en) * | 2011-09-30 | 2013-03-13 | 주식회사 세종메디칼 | Trocar assembly |
| CN202376191U (en) * | 2011-11-01 | 2012-08-15 | 东莞微视医疗科技有限公司 | Visual puncture outfit for disposable laparoscope |
| CN106137331A (en) * | 2015-03-22 | 2016-11-23 | 周星 | Puncturing lever and perforator |
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| Publication number | Publication date |
|---|---|
| CN110279453B (en) | 2024-01-30 |
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