CN109953796A - Needle is used in a kind of blocking - Google Patents
Needle is used in a kind of blocking Download PDFInfo
- Publication number
- CN109953796A CN109953796A CN201910245142.7A CN201910245142A CN109953796A CN 109953796 A CN109953796 A CN 109953796A CN 201910245142 A CN201910245142 A CN 201910245142A CN 109953796 A CN109953796 A CN 109953796A
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- linear type
- needle tubing
- flexible
- type needle
- pars convoluta
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 39
- 238000005452 bending Methods 0.000 claims description 87
- 241001442589 Convoluta Species 0.000 claims description 63
- 230000001154 acute effect Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 210000004204 blood vessel Anatomy 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 13
- 230000006378 damage Effects 0.000 abstract description 5
- 230000000740 bleeding effect Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 210000000056 organ Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 208000005189 Embolism Diseases 0.000 description 1
- 206010058109 Hangnail Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
- A61B17/12013—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot for use in minimally invasive surgery, e.g. endoscopic surgery
Abstract
The invention discloses a kind of blocking needles, purpose is to solve when blocking the blood vessel in tissue, generalling use medical needle drives medical line to pass through tissue, and it knots outside tissue, to realize the blocking to blood vessel, this method needs to dissect blood vessel, and operating time is longer, is easy to appear the problems such as uncontrollable big bleeding.The application is by the improvement to needle structure, so as to realize fast self-locking, and then realizes the blocking to blood vessels in tissue.The application is easy to operate, and the required time is shorter, does not damage blood vessel, can greatly shorten the operating time.Meanwhile structure-based change, so that whole working method changes；The needle body of the application reaches adjacent tissue, the blocking to blood vessel can be realized, it is whole without tissue is needed guiding through, this effectively reduces operation risk of the needle body across tissue entirety when, advantageously reduce operation risk and operation difficulty, and Unpredictability, the safety for improving operation have great importance.The application design rationally, can provide effective instrument for relevant operation and support.
Description
Technical field
The present invention relates to instrument field, especially medicine instrument field, needle is used in specially a kind of blocking.Using the application energy
It realizes effective blocking to tissue, reduces surgical procedure difficulty, with good application prospect.
Background technique
In recent years, with the continuous development of China's medical industry, various medical surgical instruments are applied and are given birth to.For example, Chinese
Patent CN201621133059.9 discloses a kind of remaining needle, and the side opening opening direction on needle tubing is set with needle mouth bevel direction
It sets in different directions, reinforces the intensity of needle tubing bevel direction, solve needle tubing and be not easy to be pierced into blood vessel, the technical issues of easy bending；
Chinese patent CN201420189123.X discloses one kind from exhaust gas filter type remaining needle, can enter remaining needle by filter screen
Interior liquid is effectively filtered, it is ensured that the degree of purity that transfusion liquid is carried out by remaining needle plays on or off by exhaust valve
It closes, can effectively prevent gas and enter vein blood vessel and avoid pollution, switch the anti-hemostasis of energy by the way that remaining needle is arranged in remaining needle
Liquid flows back into remaining needle, avoids embolism of the blood in remaining needle；Chinese patent CN201220379810.9 discloses one
Kind syringe-type vacuum blood collector makes three with syringe rigid attachment vascular puncture needle tubing, blood-collecting needle tube and blood sample collection pipe
Person not only Construction integration but also a kind of traditional needle cylinder structure of composition；Chinese patent CN201320155603.X discloses a kind of new
Type Neurology puncture needle comprising syringe needle and transparent hose, the needle tip outer wall are equipped with multiple fluid holes, and rear end is set
There is a needle handle, the needle handle inner hollow and be connected to transparent hose, needle handle is equipped with anti-slip layer, and the transparent hose is close to needle handle
Part be equipped with sacculus, tail end be equipped with connection syringe pullover, the sacculus rear end be equipped with block folder.
However, inventor is in practice, it has been found that at present when blocking to the blood vessel in tissue, it usually needs pass through doctor
It drives medical line to reach near vessels with needle, and medical line is passed through into tissue, line knots outside musculature, in turn
Complete the blocking or ligation work to tissue or organ.It is well known that in the course of surgery, dissection blood vessel could be avoided effectively
Damage, but dissecting blood vessel is most difficult step of performing the operation, if blood vessel blocking or ligation can be completed for suffering from by not dissecting blood vessel
Person is extremely important.Therefore, simplify operative process, shorten operating time, for patients, it appears especially
It is necessary.
For this purpose, there is an urgent need to a kind of new device or method, to solve foregoing problems.
Summary of the invention
Goal of the invention of the invention is: at present to tissue or organ blocking or ligation when, generally use doctor
It drives medical line to pass through tissue or organ with needle, and knots in tissue or extraorgan, to realize the resistance to tissue or organ
It is disconnected, blood vessel is dissected required for this method, operating time is longer, is easy to appear the problems such as uncontrollable big bleeding, provides one kind
Blocking can complete the blocking of blood vessel safety with needle under the premise of not dissecting blood vessel.It is different from existing medical needle structure,
The application is by the improvement to needle structure, so as to realize fast self-locking, and then realizes the blocking to tissue or organ
Or ligation.Easy to operate using the application, easy to use, the required time is shorter, does not damage blood vessel, application with higher
Value and preferable application prospect.Meanwhile structure-based change, so that whole working method changes；The application's
Needle body reaches adjacent tissue, and the blocking to tissue or organ can be realized by minimum puncture path, no longer need to be pierced by tissue or
Organ, this effectively reduces operation risk of the needle body when being pierced by tissue or organ, advantageously reduces operation risk and operation is difficult
Degree and Unpredictability, the safety for improving operation have great importance.The application is skillfully constructed, and design rationally, is tied
Structure is simple, easy to use, application value with higher and preferable application prospect, is worth large-scale promotion and application.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of block uses needle, including linear type needle tubing, flexible locking piece；
The linear type needle tubing is provided with out along the circular cross section perpendicular to its center line, the side wall of the linear type needle tubing
Mouth slot；Or linear type needle tubing is C-shaped along the section perpendicular to its center line, the opening formation on the linear type needle tubing side wall is opened
Mouth slot；Or linear type needle tubing is respectively arranged with rib in the end of Qian font and Qian font along the section perpendicular to its center line,
Opening on the linear type needle tubing side wall forms open slot；
The flexible locking piece includes straight line portion, flexible bending pars convoluta, sticking department, and the straight line portion, flexible bending pars convoluta are successively connected
It is integrated and flexible bending pars convoluta is located in the initial state in linear type needle tubing, the sticking department is arranged in flexible bending pars convoluta end
And flexible bending pars convoluta relative rectilinear type needle tubing can drive sticking department to penetrate in open slot when being pierced by；Flexible locking piece retraction Shi Nengla
Dynamic sticking department is retreated and sticking department is stuck on the inner wall of open slot to realize locking；
Or including linear type needle tubing, flexible locking piece, locking level；
Open slot, the lower end surface of the linear type needle tubing and the formed folder of center line are provided on the side wall of the linear type needle tubing
Angle is acute angle；
The flexible locking piece is flat needle body and flat needle body can be moved along linear type needle interior wall, the flexible locking
Part includes locking main body, flexible bending pars convoluta, is provided with the location hole that locking level matches, the locking on the flexible bending pars convoluta
Main body, flexible bending pars convoluta are integrated and flexible bending pars convoluta is located in the initial state in linear type needle tubing, the flexible bending pars convoluta
It is arc-shaped and when flexible bending pars convoluta relative rectilinear type needle tubing is pierced by can drive the end in flexible bending portion to penetrate in open slot；
The locking level is arranged in linear type needle tubing and locking level can be inserted when the end of flexible bending pars convoluta penetrates in open slot
Enter positioning hole to realize the limit to flexible locking piece.
The lower end surface of the linear type needle tubing is provided with cutting edge and linear lower end surface has the function of to puncture.
The location hole is located at the end of flexible bending pars convoluta.
The sticking department is in reversed acanthoid.
Angle between the sticking department and flexible bending pars convoluta is acute angle.
The flexible locking piece is made of metal material.The flexible locking piece has elasticity.
The linear type needle tubing is made of medical stainless steel material.
The flexible bending pars convoluta is arc-shaped.
The flexible bending pars convoluta is 3/4 ~ 1/1 circle.
The inner wall of the linear type needle tubing is provided with the guide part matched with flexible bending pars convoluta and guide part can limit it is soft
The direction of motion of property bending section.
The guide part is guide groove.
The inner wall of the open slot is additionally provided with the Fastener matched with sticking department.
Further include cutting assembly, cutting assembly setting in linear type needle interior wall and cutting assembly can by sticking department with
Flexible bending pars convoluta cuts off the opening to realize the relatively straight line style needle tubing of flexible locking piece.
The cutting assembly includes guide groove, blade, and the guide groove is arranged on the inside of linear type needle tubing and guide groove
End is located at the top of open slot, and the blade is arranged in guide groove and blade energy respective guide slot is mobile to realize to locking
The disconnection of portion relative flexibility bending section.
The top setting finite place piece and locating part of the blade can guarantee the cutting edge of blade without departing from linear type needle tubing
End so as not to blade to patient generate secondary injury.
The locating part is L-shaped.
It further include that the unlock piece matched with sticking department and unlock piece can open sticking department opposed open slot to realize lock
Determine the unlock in portion.
The unlock piece includes vertical interconnecting piece, the bending interconnecting piece that vertical interconnecting piece end is arranged in, described to connect vertically
Socket part, bending interconnecting piece be sequentially connected be integrated and it is described bending interconnecting piece end can be by the upward band in sticking department relative rectilinear portion
Play the unlock to realize sticking department.
The bending interconnecting piece is C-shaped.
For foregoing problems, the application provides a kind of blocking needle.As previously mentioned, in the prior art, generalling use straight line
Property needle structure design, drive medical line to pass through tissue by linear type needle body, and outside tissue by medical line as early as possible
It ties up, to realize the blocking to blood vessel.For this purpose, applicant breaks Traditional Thinking, realized by needle body itself to blood vessels in tissue
Blocking.
In the application, blocking needle includes linear type needle tubing, flexible locking piece.In the application, give three kinds it is different
Linear type needle tubing structure, it is specific as follows.The first, linear type needle tubing is along the circular cross section perpendicular to its center line, linear type
Open slot is provided on the side wall of needle tubing.Or linear type needle tubing is C-shaped along the section perpendicular to its center line, linear type needle tubing side
Opening on wall forms open slot.Or linear type needle tubing along the section perpendicular to its center line in the end of Qian font and Qian font
It is respectively arranged with rib, the opening on linear type needle tubing side wall forms open slot.
Flexible locking piece includes straight line portion, flexible bending pars convoluta, sticking department, and it is one that straight line portion, flexible bending pars convoluta, which are successively connected,
Body and flexible bending pars convoluta is located in the initial state in linear type needle tubing, sticking department are arranged in flexible bending pars convoluta end and flexible bending
Pars convoluta relatively straight line style needle tubing can drive sticking department to penetrate in open slot when being pierced by.When flexible locking piece bounces back, stretchy lock
Determine portion's retrogressing, and sticking department is stuck on the inner wall of open slot, and then realizes locking operation.
Further, sticking department is in reversed acanthoid, such as fish hook end hangnail shape.The structure in use, reversed acanthoid sticking department
Angle between flexible bending pars convoluta is at an acute angle；The sticking department of reversed acanthoid is pulled to retreat when flexible locking piece bounces back, reversed acanthoid
Sticking department is matched with open slot, realizes locking.
Based on the structure, the application passes through the flexible locking piece and the mutual cooperation of linear type needle tubing in blocking needle
Realize the blocking to blood flow in blood vessels in tissue.Than existing, the application reaches near vessels and can be realized to blood vessel
The blocking of interior blood flow effectively reduces the uncertainty that needle tubing moves the wound and needle body of tissue within the organization；Meanwhile it is existing
Have and needs to be blocked by medical line in technology, and the application is based on the phase interworking between flexible locking piece and linear type needle tubing
Close, can be realized to blood vessel self block, can greater ease of operation, reduce operating difficulty, shorten operating time, have compared with
High application value and preferable application prospect.
Further, the inner wall of open slot is additionally provided with the Fastener matched with sticking department, and Fastener can be for along opening
The protrusion of slot inner wall.It is matched by protrusion with the sticking department of reversed acanthoid, and then realizes the locking operation to sticking department.
In certain situations it is desirable to carry out cutoff process to flexible locking piece.For this purpose, the blocking of the application further includes with needle
Cutting assembly.Cutting assembly is arranged in linear type needle interior wall the application, and passes through cutting assembly for sticking department and flexible bending
Pars convoluta cutting, to realize the opening of the relatively straight line style needle tubing of flexible locking piece, thus by the straight line portion of flexible locking piece, flexible bending
Pars convoluta reversely takes out.Further, cutting assembly includes guide groove, blade, and guide groove is arranged on the inside of linear type needle tubing and is oriented to
The end of slot is located at the top of open slot, and blade is arranged in guide groove and blade energy respective guide slot is mobile；Based on the structure,
Guide groove plays the role of guiding, and blade respective guide slot moves up and down；When blade reaches sticking department position, it is pressed downward
Sticking department and flexible bending pars convoluta are cut off by blade, realize the separation of the two, and reversely pull straight line portion, thus will by blade
Sticking department is opened.
Further, finite place piece is arranged in the top of blade, and locating part is L-shaped.Using the structure, between blade and guide part
It connects in Qian font, so that end of the cutting edge without departing from linear type needle tubing of blade be effectively ensured, realizes to blade relative rectilinear
The limit of type needle tubing, and avoid so as not to blade to patient generate secondary injury.
In certain situations it is desirable to be unlocked processing to flexible locking piece.For this purpose, the blocking of the application further includes with needle
Unlock piece.In the application, sticking department opposed open slot is opened by unlock piece, to realize the unlock of sticking department.Further,
Unlock piece includes vertical interconnecting piece, the bending interconnecting piece that vertical interconnecting piece end is arranged in, vertical interconnecting piece, bending interconnecting piece according to
It is secondary to be connected as one.The application is in use, the vertical interconnecting piece in unlock piece drives bending interconnecting piece along linear type needle interior wall
It moves down.In the application, bending interconnecting piece is C-shaped；Based on the structure design of c-type bending interconnecting piece, process is moved down
In, end can be staggered with sticking department；When c-type bending interconnecting piece reaches below sticking department, unlock piece, c-type bending are moved up
The middle part of interconnecting piece drives sticking department to move up, so that sticking department be made to separate with open slot, then pulls up flexible locking piece,
Unlock operation can be realized；Meanwhile pulling out the relatively straight line style needle tubing of sticking department, it realizes sticking department and c-type is bent interconnecting piece
Between separation, take out unlock piece.Using the application, it is able to achieve the unlock of sticking department, meets the needs of practical application.
The application is skillfully constructed, reasonable design, easy operation, can effectively shorten the corresponding time, meets blood in tissue
The demand of blocking improves success rate of operation, has great importance, be worth large-scale promotion and answer for reducing operation risk
With.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is the structural schematic diagram of embodiment 1.
Fig. 2 is the sectional view along A-A of linear type needle tubing in embodiment 1.
Fig. 3 is a kind of alternative of Fig. 2.
Fig. 4 is another alternative of Fig. 2.
Fig. 5 is the structural schematic diagram of embodiment 2.
Fig. 6 is the structural schematic diagram of embodiment 3.
Fig. 7 is the structural schematic diagram of unlock piece in Fig. 6.
Fig. 8 is that flexible locking piece is located at the schematic diagram in blocking needle in embodiment 4.
Fig. 9 is flexible locking piece in embodiment 4 with respect to the schematic diagram that blocking needle stretches out.
Figure 10 is the schematic diagram that blocking is in the lock state with needle in embodiment 4.
Marked in the figure: 1, linear type needle tubing, 2, open slot, 3, straight line portion, 4, flexible bending pars convoluta, 5, reversed acanthoid sticking department,
6, rib, 7, guide groove, 8, blade, 9, locating part, 10, vertical interconnecting piece, 11, bending interconnecting piece, 20, flexible locking piece, 21,
Locking level, 22, locking main body, 23, location hole.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
Embodiment 1
As shown, the needle of the present embodiment includes linear type needle tubing, flexible locking piece.In the present embodiment, linear type needle tubing is along vertical
Directly in being provided with open slot on the circular cross section of its center line, the side wall of linear type needle tubing.
Meanwhile flexible locking piece includes straight line portion, flexible bending pars convoluta, reversed acanthoid sticking department, straight line portion, flexible bending pars convoluta according to
Secondary to be fixed with one, reversed acanthoid sticking department is arranged in flexible bending pars convoluta end.In the structure, under unused state, flexible bending
Pars convoluta and reversed acanthoid sticking department thereon are placed in inside linear type needle tubing.
When and reaching near vessels position in use, linear type needle tubing is first pierced into organization internal.Then, flexibility is locked
Determine part to release inside linear type needle tubing, flexible bending pars convoluta leaves linear type needle tubing and arc-shaped curve movement, eventually enters into straight
In the open slot of line style needle tubing side wall, and when flexible bending pars convoluta relative rectilinear type needle tubing is pierced by, can drive reversed acanthoid sticking department to penetrate
In open slot；At this point, blood vessel to be blocked is located on the inside of the arc curve of flexible bending pars convoluta.And then, flexible locking piece is anti-
To pulling, reversed acanthoid sticking department is retreated and is stuck on the inner wall of open slot, and then passes through the deformation of pulling back of flexible bending pars convoluta, is realized
Locking to intravascular blood flow.
In the present embodiment, linear type needle tubing is made of medical stainless steel material.Flexible locking piece uses metal material system
At, and flexible locking piece has certain elasticity, to be placed in inside linear type needle tubing, and meets the needs for deformation of pulling back.Meanwhile
It when flexible bending pars convoluta leaves linear type needle tubing, is arc-shaped, can be ~ 1/1 circle of 3/4 circle.
Than existing, the device of the application is easy to operate, easy to use, can greatly shorten the operating time, tool
There is higher application value.
Further, in the present embodiment, it can also be arranged in the inner wall of linear type needle tubing and be led with what flexible bending pars convoluta matched
To part, the direction of motion of flexible bending pars convoluta is limited by guide part.In the present embodiment, guide part can be guide groove.
Further, in the present embodiment, the Fastener matched with reversed acanthoid sticking department can also be arranged in the inner wall of open slot
(such as Fastener is the protrusion etc. that can prevent reversed acanthoid sticking department from deviating from from the inner wall of the open slot).
Further, alternatively, the linear type needle tubing in the present embodiment is along the section perpendicular to its center line
C-shaped, the opening on linear type needle tubing side wall forms open slot.
Further, alternatively, the linear type needle tubing in the present embodiment is along the section perpendicular to its center line
It is respectively arranged with rib in the end of Qian font and Qian font, the opening on linear type needle tubing side wall forms open slot.
Embodiment 2
The blocking needle of the present embodiment further includes cutting assembly.In the present embodiment, cutting assembly includes guide groove, blade, blade
Finite place piece is arranged in top.In the present embodiment, guide groove is arranged on the inside of linear type needle tubing, and the end of guide groove is located at opening
The length of the top of slot, guide groove is less than the distance between linear type needle tubing top and open slot.Meanwhile blade setting is being oriented to
In slot, and blade energy respective guide slot relatively moves.Further, locating part is L-shaped, and such as Fig. 5 is constituted between locating part and blade
Shown in Qian type structure, locating part can play the role of hangers, and can play position-limiting action to the running track of blade.Other
It is same as Example 1.
Embodiment 3
The blocking needle of the present embodiment further includes the unlock piece matched with sticking department.As shown in Figure 6, Figure 7, in the present embodiment, solution
Latch fitting includes vertical interconnecting piece, the bending interconnecting piece that vertical interconnecting piece end is arranged in, and vertical interconnecting piece, bending interconnecting piece are successively
It is connected as one.Wherein, unlock piece can open sticking department opposed open slot, to realize the unlock of sticking department.Other and implementation
Example 1 is identical.
Embodiment 4
As shown, the blocking needle of the present embodiment includes linear type needle tubing, flexible locking piece, locking level.In the present embodiment, directly
The open slot matched with flexible locking piece is provided on the side wall of line style needle tubing；The lower end surface of linear type needle tubing and center line institute
At angle be acute angle and be provided with cutting edge, can guarantee linear type needle tubing puncture effect.
In the present embodiment, flexible locking piece integrally uses flat needle body.More specifically, flat needle body is along perpendicular to it
The section of axis is in rectangle, and the cooperation of flexible locking piece and linear type needle tubing based on flat needle structure can be protected effectively
The direction of motion of flexible locking piece when the relatively straight line style needle tubing of flexible locking piece stretches out is demonstrate,proved (using linear type needle tubing and flat
The cooperation of needle body can achieve the purpose that guiding, limit；Wherein, flat needle body designs can reduce needle body axially range
Interior swing can make the flexible bending pars convoluta of flexible locking piece be properly inserted in open slot).
In the present embodiment, flexible locking piece includes locking main body, flexible bending pars convoluta, is provided with locking level on flexible bending pars convoluta
The location hole matched, locking main body, flexible bending pars convoluta are using integrated design.Wherein, flexible bending pars convoluta itself is arc-shaped,
It is located in linear type needle tubing in the initial state；Based on the structure, when the flexible bending pars convoluta relative rectilinear type needle of flexible locking piece
When pipe is pierced by, based on the arc-shaped structure design of flexible bending pars convoluta itself, so that it is arc-shaped stretching, and it is based on linear type needle
The guiding and position-limiting action of pipe enable the end of flexible bending pars convoluta accurately to enter in the open slot of linear type needle tubing.Flexible bending
Location hole on pars convoluta enters in linear type needle tubing；At this point, the relatively straight line style needle tubing of locking level is moved down, can will lock
Bar is inserted into positioning hole, to realize the limit to flexible locking piece；At this point, negative drawing flexible locking piece, can be realized phase
The locking function answered.
When needing to unlock, locking level is moved up, separates locking level with location hole, unlock operation can be realized.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of block uses needle, which is characterized in that including linear type needle tubing, flexible locking piece；
The linear type needle tubing is provided with out along the circular cross section perpendicular to its center line, the side wall of the linear type needle tubing
Mouth slot；Or linear type needle tubing is C-shaped along the section perpendicular to its center line, the opening formation on the linear type needle tubing side wall is opened
Mouth slot；Or linear type needle tubing is respectively arranged with rib in the end of Qian font and Qian font along the section perpendicular to its center line,
Opening on the linear type needle tubing side wall forms open slot；
The flexible locking piece includes straight line portion, flexible bending pars convoluta, sticking department, and the straight line portion, flexible bending pars convoluta are successively connected
It is integrated and flexible bending pars convoluta is located in the initial state in linear type needle tubing, the sticking department is arranged in flexible bending pars convoluta end
And flexible bending pars convoluta relative rectilinear type needle tubing can drive sticking department to penetrate in open slot when being pierced by；Flexible locking piece retraction Shi Nengla
Dynamic sticking department is retreated and sticking department is stuck on the inner wall of open slot to realize locking；
Or including linear type needle tubing, flexible locking piece, locking level；
Open slot, the lower end surface of the linear type needle tubing and the formed folder of center line are provided on the side wall of the linear type needle tubing
Angle is acute angle；
The flexible locking piece is flat needle body and flat needle body can be moved along linear type needle interior wall, the flexible locking
Part includes locking main body, flexible bending pars convoluta, is provided with the location hole that locking level matches, the locking on the flexible bending pars convoluta
Main body, flexible bending pars convoluta are integrated and flexible bending pars convoluta is located in the initial state in linear type needle tubing, the flexible bending pars convoluta
It is arc-shaped and when flexible bending pars convoluta relative rectilinear type needle tubing is pierced by can drive the end in flexible bending portion to penetrate in open slot；
The locking level is arranged in linear type needle tubing and locking level can be inserted when the end of flexible bending pars convoluta penetrates in open slot
Enter positioning hole to realize the limit to flexible locking piece.
2. blocking use needle according to claim 1, which is characterized in that the sticking department is in reversed acanthoid.
3. blocking use needle according to claim 1, which is characterized in that the inner wall of the linear type needle tubing is provided with and flexible bending
Guide part and guide part that pars convoluta matches can limit the direction of motion of flexible bending pars convoluta.
4. described block uses needle any one of according to claim 1 ~ 3, which is characterized in that the inner wall of the open slot be additionally provided with
The Fastener that sticking department matches.
5. described block of any one uses needle according to claim 1 ~ 4, which is characterized in that it further include cutting assembly, the cutting group
Part setting is in linear type needle interior wall and cutting assembly can be by sticking department and the cutting of flexible bending pars convoluta to realize flexible locking piece phase
To the opening of linear type needle tubing.
6. blocking use needle according to claim 5, which is characterized in that the cutting assembly includes guide groove, blade, described to lead
The top that on the inside of the linear type needle tubing and end of guide groove is located at open slot is set to slot, the blade is arranged in guide groove
It is interior.
7. described block of any one uses needle according to claim 1 ~ 4, which is characterized in that further include the unlock matched with sticking department
Sticking department opposed open slot can be opened the unlock to realize sticking department by part and unlock piece.
8. blocking use needle according to claim 7, which is characterized in that the unlock piece includes vertical interconnecting piece, setting perpendicular
The bending interconnecting piece of direct-connected socket part end, the vertical interconnecting piece, bending interconnecting piece be sequentially connected be integrated and the bending company
The unlock that the end of socket part can take up upwards sticking department relative rectilinear portion to realize sticking department.
9. blocking use needle according to claim 8, which is characterized in that the bending interconnecting piece is C-shaped.
10. blocking use needle according to claim 1, which is characterized in that the flexible locking piece is flat needle body, described fixed
Position hole is located at the end in flexible bending portion, and the lower end surface of the linear type needle tubing is provided with cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910245142.7A CN109953796B (en) | 2019-03-28 | 2019-03-28 | Blocking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910245142.7A CN109953796B (en) | 2019-03-28 | 2019-03-28 | Blocking needle |
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| Publication Number | Publication Date |
|---|---|
| CN109953796A true CN109953796A (en) | 2019-07-02 |
| CN109953796B CN109953796B (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910245142.7A Active CN109953796B (en) | 2019-03-28 | 2019-03-28 | Blocking needle |
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| CN (1) | CN109953796B (en) |
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| CN109953796B (en) | 2023-12-29 |
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