CN105997180A - Automatic tensioning elastic thread arranging method of loop ligature device and self-tightening elastic thread loop ligature device - Google Patents
Automatic tensioning elastic thread arranging method of loop ligature device and self-tightening elastic thread loop ligature device Download PDFInfo
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- CN105997180A CN105997180A CN201610488738.6A CN201610488738A CN105997180A CN 105997180 A CN105997180 A CN 105997180A CN 201610488738 A CN201610488738 A CN 201610488738A CN 105997180 A CN105997180 A CN 105997180A
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- looping
- binding device
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/32056—Surgical snare instruments
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- 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
- A61B2017/12018—Elastic band ligators
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Abstract
The invention discloses an automatic tensioning elastic thread arranging method of a loop ligature device and the self-tightening elastic thread loop ligature device. The method comprises the steps that at least one elastic thread is additionally arranged along the outer wall of an outer gun barrel of the loop ligature device, a loop ring with the adjustable pore size formed at the front end of the elastic thread is arranged on the outer wall of the front end of an inner gun barrel, the tail end of the elastic thread is connected with a stay wire automatic connecting piece of the loop ligature device, and the other end of the stay wire automatic connecting piece is connected with a self-tightening spanner through a flexible spring. When the tail end of the elastic thread is pulled, a self-tightening spanner loosens abutting joint for the flexible spring, the stay wire automatic connecting piece is driven by restoring force of the stretchable spring to tension the elastic thread backwards, the elastic thread is automatic tensioned, the pore size of the loop sleeve at the front end of the elastic thread is rapidly reduced to the minimum and close to zero, and firmer ligature is provided for target structures.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, be specifically related to the automatic tightening elastic thread side of setting of a kind of looping and binding device
Method and self-tightening type elastic thread looping and binding device.
Background technology
Hemorrhoid Loop ligature (inhale prick art etc. also known as hemorrhoid plastic loop ligation art, hemorrhoid) is the conventional side for the treatment of hemorrhoid
Method, determined curative effect, its principle is by special cushion rubber (such as rubber ring, latex circle, silica gel ring, elastic force
Coil etc.) overlap the root (or basilar part) being tied in internal hemorrhoid, take this to utilize the elastic recovery force of cushion rubber to block
Hemorrhoid blood supply, is allowed to necrosis, atrophy, comes off, thus reaches to cure purpose.
Previously the simplest and the crudest for implementing the traditional instruments of the difficult to handle art of set, during operating cost, arduously, it is susceptible to
Complication.For changing this situation, occur in that nearly ten years a kind of make set prick the hand art become simple from
Dynamicizer tool, i.e. automatic ligation device of hemorrhoids (also known as repeating type haemorrhoids ligation apparatus, continuous hemorrhoid suction ligation device etc.).
The advantage utilizing this apparatus to carry out overlapping difficult to handle art is: easy and simple to handle, quick, accurate；Single complete hands
Art, the most only 5～10 minutes；And the probability of generation complication is relatively low；Patient typically need not anesthesia,
Painful slight；Most patients also without being in hospital, low in treatment cost.
1. haemorrhoids ligation apparatus divides two kinds at present:
A: cushion rubber haemorrhoids ligation apparatus B: elastic thread haemorrhoids ligation apparatus
A: cushion rubber haemorrhoids ligation apparatus:
Cushion rubber hemorrhoid suction and ligature device (also known as haemorrhoids ligation apparatus) and domestic and international other kinds of hemorrhoid set are pricked
Device, has a common feature, and i.e. they all use " cushion rubber " to be tied in the basic of hemorrhoid root as set
Material；And make the available raw material of this cushion rubber and include natural rubber, latex or silica gel etc..
The clinical efficacy of hemorrhoid plastic loop ligation art and " internal orifice dimension of cushion rubber " and " elastic recovery force of cushion rubber "
Two technical specifications are directly related.And utilize cushion rubber to prick material as set and there are some intrinsic shortcomings: 1. by
In the inherent character of natural rubber (or latex, silica gel etc.), the internal orifice dimension limiting cushion rubber can not be infinitely small,
Typically can only make 2.0～2.5mm (at least cannot be less than 1.5mm), otherwise set is pricked during stretching the most disconnected
Split.This means that in the size range of diameter 2.0～2.5mm (at least not less than 1.5mm), quilt
The hemorrhoidal tissue that set is pricked will not acted on by any elastic recovery force, and final tissue necrosis is formed after coming off
Ulcer scope is also in 2.0～2.5mm (at least not less than 1.5mm) left and right；2. when cushion rubber is to stretch shape
When state is arranged on looping and binding device, as time went on, the most gradually occur tired and make internal orifice dimension become big；③
The factor such as climate, environment affects, and cushion rubber occurs aging the most in time, so that elastic recovery force dies down.
Impact due to factors above, it would be possible to cause following consequence: the most postoperative cushion rubber of generation in a short time slips,
Cause Endodontic failure；2. the postoperative hemorrhage complication (Bleeding rate that according to statistics, hemorrhoid plastic loop ligation is postoperative is caused
It is 2%～5%)；3. hemorrhoid block is downright bad not exclusively, and ulcer surface healing delay affects the treatment.
The manual type elastic thread haemorrhoids ligation apparatus of B: elastic thread haemorrhoids ligation apparatus
Manual type elastic thread hemorrhoid suction and ligature device (also known as appliance for releasing single line of force looping and binding device) is although cushion rubber set can be overcome
Prick device cushion rubber and prick the tightest defect, but more complicated to the process of destination organization fastening, position and ejection pushes away line
Design operation flow process is many, and it is the most convenient to use, when this technical scheme carries out set bundle operation, and can only be first from transmitting
Tissue pricked by head release set, pushes away spool in release, and artificial tension pushes away spool elastic thread ring set to ligature hemorrhoidal tissue
(or other destination organizations), are easily caused operating process elastic force wire loop set and slip from tissue, impact treatment
Effect, in art, artificial tension ligation ring is unstable and holds and robs shakiness ring set all may be made from tissue slippage, loses
Therapeutic effect, and the manually tension bad grasp of ligation ring dynamics, easily form firmly too small tightness inadequate,
Firmly excessive elastic thread breaks.
Summary of the invention
In view of this, it is necessary to provide one automatically to carry out tightening up action, make the ring set of elastic thread front end
Aperture be contracted to rapidly minimum-value aperture and close to zero looping and binding device automatic tightening elastic thread method to set up and from
Compact form elastic thread looping and binding device.
The present invention provides the automatic tightening elastic thread method to set up of a kind of looping and binding device, and it includes outside looping and binding device
The outer wall of gun barrel adds at least elastic thread, and the adjustable ring set in formation aperture, front end of described elastic thread is placed on
On the outer wall of interior gun barrel front end, the tail end of described elastic thread is connected with the bracing wire automated attachment of looping and binding device, institute
The other end stating bracing wire automated attachment is connected by a coil tension spring and a Self-tightened spanner, pull elastic thread tail
During end, Self-tightened spanner unclamps the abutting to coil tension spring, and bracing wire automated attachment is at coil tension spring restoring force
Under drive, elastic thread is strained backward so that the ring set aperture of elastic thread front end reduces rapidly.
A kind of self-tightening type elastic thread looping and binding device, it includes gun body and gun barrel, and wherein, described gun barrel includes interior rifle
Pipe and outer gun barrel, and at least elastic thread, described elastic thread is arranged along the outer wall of the outer gun barrel of looping and binding device,
The adjustable ring set in formation aperture, front end of described elastic thread is placed on the outer wall of interior gun barrel front end, described elastic thread
Tail end be connected with the bracing wire automated attachment of looping and binding device, the other end of described bracing wire automated attachment pass through one
Coil tension spring and a Self-tightened spanner connect, and during pull elastic thread tail end, Self-tightened spanner unclamps coil tension spring
Abutting, elastic thread is strained under the drive of coil tension spring restoring force by bracing wire automated attachment backward so that bullet
The ring set aperture of line of force front end reduces rapidly.
The present invention provides the automatic tightening elastic thread method to set up of a kind of looping and binding device and self-tightening type elastic thread set to prick
Device, it is provided the back stretch strained backward, enters elastic thread by coil tension spring for bracing wire automated attachment
Row automatic tension, doctor only needs to detain Self-tightened spanner, makes Self-tightened spanner unclamp the abutting to coil tension spring,
Bracing wire automated attachment can be made to be strained backward by elastic thread under the drive of coil tension spring restoring force, so that
The ring set aperture of elastic thread front end is contracted to rapidly minimum-value aperture and close to zero, and then realizes destination organization
The set more fastened is pricked, and owing to elastic thread has good elastic shrinkage, the most downright bad at destination organization
And during coming off, the ring set of elastic thread reduces the most therewith, until after necrotizing target tissue comes off, being formed
Ulcer surface minimum, thus reduce the probability that complicated by postoperative is hemorrhage.The automatic receipts of looping and binding device of the present invention
Tight elastic thread method to set up and self-tightening type elastic thread looping and binding device, simple in construction, easy to operate, extensively should be suitable to
With.
Accompanying drawing explanation
Fig. 1 is the structural representation of self-tightening type elastic thread looping and binding device of the present invention；
Fig. 2 is the sectional view of self-tightening type elastic thread looping and binding device of the present invention；
Fig. 3 is the structural representation of interior gun barrel of the present invention；
Fig. 4 is the structural representation of spacing axis body in inside and outside gun barrel of the present invention dislocation mechanism；
Fig. 5 is the structural representation of gun body inner tube of the present invention；
Fig. 6 is the sectional view of the gun body of self-tightening type elastic thread looping and binding device of the present invention；
Fig. 7 is the structural representation of the bracing wire automated attachment of elastic thread automatic tensioning mechanism of the present invention；
Fig. 8 is the sectional view of the gun barrel of self-tightening type elastic thread looping and binding device of the present invention；
Fig. 9 is another sectional view of the gun barrel of self-tightening type elastic thread looping and binding device of the present invention；
Figure 10 is the structural representation of the elastic thread connection end of elastic thread automatic tensioning mechanism of the present invention；
Figure 11 is the structural representation of the power tractive end of elastic thread automatic tensioning mechanism of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated, it will be appreciated that specific embodiment described herein is only
Only in order to explain the present invention, it is not intended to limit the present invention.
As depicted in figs. 1 and 2, the present invention provides the automatic tightening elastic thread method to set up of a kind of looping and binding device,
It includes that the outer wall of the outer gun barrel 22 along looping and binding device adds at least elastic thread 30, described elastic thread 30
The adjustable ring set in formation aperture, front end is placed on the outer wall of interior gun barrel 21 front end, the tail end of described elastic thread 30
Being connected with the bracing wire automated attachment 80 of looping and binding device, the other end of described bracing wire automated attachment 80 passes through one
Coil tension spring 90 is connected with a Self-tightened spanner 100, and now, described elastic thread 30 is in extended state, when
During pull elastic thread 30 tail end, Self-tightened spanner 100 unclamps the abutting to coil tension spring 90, and bracing wire connects automatically
Elastic thread 30 is strained under the drive of coil tension spring 90 restoring force by fitting 80 backward so that elastic thread 30
The ring set aperture of front end reduces rapidly.
In the present embodiment, described elastic thread 30 is by only allowing the pirate of the unidirectional pull of elastic thread 30 to tie shape
Becoming ring set, the outer gun barrel 22 of described looping and binding device can internally gun barrel 21 or the mutually external gun barrel of interior gun barrel 21 22 mutually
Being subjected to displacement, the internal diameter of described outer gun barrel 22 matches with the external diameter of described interior gun barrel 21, and at initial shape
During state, the mouth of pipe of described interior gun barrel 21 protrudes from the mouth of pipe of described outer gun barrel 22 and arranges.When outer gun barrel 22 phase
When internally gun barrel 21 or the mutually external gun barrel of interior gun barrel 21 22 are subjected to displacement, the tube wall of described outer gun barrel 22 will
Elastic thread 30 releases the body of interior gun barrel 21.
The retraction stroke maximum tension length more than elastic thread 30 of described bracing wire automated attachment 80 is set,
Therefore, elastic thread 30 can be stretched to maximum tension length by power tractive end, makes elastic thread 30 front end
Ring set aperture is contracted to minimum-value aperture and close to zero, and then the set realizing more fastening destination organization is pricked,
And owing to elastic thread 30 has good elastic shrinkage, during destination organization gradually necrosis coming off,
The ring set of elastic thread 30 reduces the most therewith, until after necrotizing target tissue comes off, the ulcer surface of formation is minimum,
Thus reduce the probability that complicated by postoperative is hemorrhage.
Said method can be applicable on medical apparatus and instruments, uses the self-tightening type elastic force of above-mentioned elastic thread 30 method to set up
Line looping and binding device, as depicted in figs. 1 and 2, including gun body 10 and gun barrel 20, wherein, described gun barrel 20 wraps
Including interior gun barrel 21 and outer gun barrel 22, and at least elastic thread 30, described elastic thread 30 is along looping and binding device
The outer wall of outer gun barrel 22 is arranged, and the adjustable ring set in formation aperture, front end of described elastic thread 30 is placed on interior gun barrel
On the outer wall of 21 front ends, the tail end of described elastic thread 30 is connected with the bracing wire automated attachment 80 of looping and binding device,
The other end of described bracing wire automated attachment 80 is connected with a Self-tightened spanner 100 by a coil tension spring 90,
During pull elastic thread 30 tail end, Self-tightened spanner 100 unclamps the abutting to coil tension spring 90, and bracing wire connects automatically
Elastic thread 30 is strained under the drive of coil tension spring 90 restoring force by fitting 80 backward so that elastic thread 30
The ring set aperture of front end reduces rapidly.
Described elastic thread 30 is made up of inside and outside two-layer；Internal layer (resilient strip) is that ribbon has high flexibility
Special macromolecular material；Outer layer (integument) is netted braid, is wrapped in internal layer surface, also by special
Macromolecular material makes, can the diastole with the stretching of internal layer resilient strip；This special double-deck knot of elastic thread 30
Structure makes it not only have good elasticity, and can bear powerful axial tension and not rupture, when being in
Can also be because its own resilient is taken out further tightly when the elastic thread ring set of extended state is placed on destination organization
Reduced bore；In addition elastic thread 30 is not easy to aging and tired when being in unstretched condition, and service life is long,
Set can be improved and prick effect.
Being provided with gun body inner tube 11 in described gun body 10, the front end of described gun body inner tube 11 connects with interior gun barrel 21,
Tail end connects with negative pressure trachea, and the most described interior gun barrel 21 is lower in working order is negative pressure, carries out destination organization
Absorption is shunk.Described elastic thread 30 hasp arranges an elastic thread bayonet socket 221, elastic force in the position of outer gun barrel 22
The tail end of line 30 is connected through described elastic thread bayonet socket 221 with the bracing wire automated attachment 80 of looping and binding device, bullet
Line of force bayonet socket 221 props up pirate's knot of ring set, and when destination organization is adsorbed mentioning, outer gun barrel 22 is mutually internal
Gun barrel 21 or the mutually external gun barrel of interior gun barrel 21 22 are subjected to displacement, and the tube wall of described outer gun barrel 22 is by elastic thread
Ring set releases the body of interior gun barrel 21, makes elastic thread 30 come off on gun barrel 20, gun barrel 21 in sucking
The destination organization of the mouth of pipe is tightened.Meanwhile, between elastic thread bayonet socket 221 and elastic thread ring set, there is relative displacement,
Elastic thread 30 is also released the body of interior gun barrel 21 by elastic thread bayonet socket 221, makes elastic thread 30 from gun barrel 20
On come off, and carry out ring set aperture shrink time, elastic thread bayonet socket 221 can prop up pirate knot, it is to avoid ring
Set landing on destination organization.
The relative displacement with outer gun barrel, described dislocation mechanism is there is in described interior gun barrel by a dislocation mechanism controls
It is arranged at gun body rear end, as in figure 2 it is shown, it includes reset key 40 and a dislocation button 50, described multiple
Position button 40 and the coaxially connected setting of tail end of described gun body inner tube 11, described reset key 40 and gun body 10
Between be provided with provide back stretch transverse elasticity parts 41, concrete, described transverse elasticity parts 41 are institute
State reset key 40 and the back stretch of rearward movement is provided；Meanwhile, described reset key 40 is provided with a limit
Hole 42, position, described dislocation button 50 is longitudinally through described spacing hole 42, and passes through a longitudinal elastic elements 51
(not marking in figure) is connected with gun body 10, and the body of described dislocation button 50 is provided with diameter and institute
State the spacing axis body 52 that spacing hole 42 diameter compatible closes；Wherein, the diameter of described spacing hole 42 is more than described
The body diameter of dislocation button 50, when described dislocation button 50 moves down, spacing axis body 52 and spacing hole
42 misplace, and make described gun body inner tube 11 drive the interior mutually external gun barrel of gun barrel 21 22 to be subjected to displacement.
As shown in Figure 3 and Figure 6, described gun body inner tube 11 is provided with the first elastic force cutting ferrule end 411, described rifle
Body 10 is provided with the second elastic force cutting ferrule end 412, and described transverse elasticity parts 41 are sleeved on the first elastic force cutting ferrule end
411 and second between elastic force cutting ferrule end 412, and described first elastic force cutting ferrule end 411 and the second elastic force cutting ferrule end
Spacing between 412 is more than the free state length of the second elastomeric element.Therefore, at described second elastomeric element
In expansion state, it is for providing the back stretch of relative displacement between gun body inner tube 11 and gun body 10, is protecting
In the case of armed body 10 is motionless, provide the back stretch of rearward movement for described reset key 40.
As it is shown on figure 3, described spacing hole 42 includes the first spacing hole 421 and the second spacing hole 422 being connected,
The diameter of described first spacing hole 421 is more than the diameter of the second spacing hole 422, and horizontal along gun body 10
On direction, described second spacing hole 422 is positioned at the front end of the first spacing hole 421.
As shown in Figure 4, described spacing axis body 52 includes the first spacing axis body 521 and the second spacing axis body 522,
The diameter of described first spacing axis body 521 and the second spacing axis body 522 respectively with the first spacing hole 421, second
The diameter compatible of spacing hole 422 closes, and on the longitudinal direction being perpendicular to gun body 10, described first limit shaft
Body 521 is arranged on the inner side of the second spacing axis body 522.
When described dislocation button 50 longitudinally moves in gun body 10, described first spacing axis body 521 and first
Spacing hole 421 occurs longitudinally displaced, under the drive of the back stretch of the second elastomeric element, and the second limit shaft
Body 522 is connected in the second spacing hole 422, and meanwhile, described gun body inner tube 11 drives interior gun barrel 21 relative
There is dislocation displacement backward in outer gun barrel 22, the elastic thread 30 being sleeved on interior gun barrel 21 front end encloses at elastic thread
Landing on interior gun barrel 21 under the braking of bayonet socket 221, it is achieved destination organization is carried out set and pricks.
When described reset key 40 laterally moves in gun body 10, described second spacing axis body 522 and second
There is transversion malposition in spacing hole 422, under the drive of the back stretch of the first elastomeric element, and the first limit shaft
The upper outer motion of body 521 is connected in the first spacing hole 421, meanwhile, and the described relative rifle of gun body inner tube 11
Body 10 moves forward to initial position, carries out the installation of gun barrel 20 next time.
After destination organization is entangled by elastic thread ring set, elastic thread 30 auto-tensioning that described looping and binding device is arranged
Elastic thread 30 is strained by mechanism backward so that the ring set aperture of elastic thread 30 front end reduces rapidly.Institute
State elastic thread 30 automatic tensioning mechanism to include through elastic thread bayonet socket 221 and drawing that elastic thread 30 tail end is connected
Line automated attachment 80；One end is connected to described gun body 10, and the other end is connected to described bracing wire automated attachment
The coil tension spring 90 of 80；One deduction is at the Self-tightened spanner 100 of the free end of described bracing wire automated attachment 80；
When Self-tightened spanner 100 unclamps the deduction of the free end to bracing wire automated attachment 80, bracing wire automated attachment 80
By coil tension spring 90 resilience backward, the ring set aperture pulling elastic thread 30 to enclose front end reduces rapidly.
Concrete, as in figure 2 it is shown, be provided with a pulling force stroke groove 101, institute in the gun body 10 of described looping and binding device
Stating bracing wire automated attachment 80 to be built in described pulling force stroke groove 101, the tail end of elastic thread 30 is along outer rifle
Pipe 22 outer wall is connected through the through hole of setting on elastic thread 30 metallic channel with bracing wire automated attachment 80.
The side of described pulling force stroke groove 101 is provided with the spring groove of setting in parallel, described coil tension spring 90
It is arranged in described spring groove 102, as it is shown in fig. 7, the free end 81 of described bracing wire automated attachment 80
Laterally extending a sleeve column 82, described coil tension spring 90 one end is connected in described spring groove 102, the other end
It is sleeved on described sleeve column 82.
Meanwhile, described Self-tightened spanner 100 is arranged on the lower section of pulling force stroke groove 101, and its fulcrum 100a sets
There is a rotation returning spring, provide back stretch counterclockwise for Self-tightened spanner 100.As shown in Figure 6, institute
State Self-tightened spanner 100 to be connected with described pulling force stroke groove 101 by a groove 101a, when pull manual oneself
Tight key 84 makes the free end 81 of bracing wire automated attachment 80 move to coil tension spring 90 to gun barrel 20 rear end
During minimum of contraction stroke end, described Self-tightened spanner 100 ejects counterclockwise, abuts described bracing wire automated attachment
The free end 81 of 80；When detaining Self-tightened spanner 100 clockwise, release the restriction to bracing wire automated attachment 80,
Then bracing wire automated attachment 80 resilience backward under the effect of the back stretch of coil tension spring 90, and pull bullet
The ring set aperture of the line of force 30 front end reduces rapidly, meanwhile, and the retraction stroke of described bracing wire automated attachment 80
More than the maximum tension length of elastic thread 30, therefore, elastic thread 30 can be drawn by bracing wire automated attachment 80
Extend maximum tension length, make the ring set aperture of elastic thread 30 front end be contracted to minimum-value aperture and close to zero,
And then realize the set bundle that destination organization is more fastened.
As it is shown in figure 1, the free end 81 of described bracing wire automated attachment 80 longitudinally projects to gun body 10 both sides
Described pulling force stroke groove 101 also extends manual self-tightening key 84, and described manual self-tightening key 84 is provided with rubbing surface,
Retraction stroke due to described bracing wire automated attachment 80 is more than the maximum tension length of elastic thread 30, when stretching
When contracting spring 90 returns back to extended configuration, free end 81 and the pulling force stroke of described bracing wire automated attachment 80
Still there is one section of stretchable distance, by arranging friction on manual self-tightening key 84 between the end of groove 101
Face so that it is as the point of application, manually pulls back manual self-tightening key 84, allows the ring set hole of elastic thread 30 front end
Footpath continues to zoom out to minimum-value aperture and close to zero.
The tail end of described elastic thread 30 is provided with an elastic thread and connects end 31, as shown in Figure 8, outside described looping and binding device
The outer wall of gun barrel 22 is provided with an elastic thread stroke groove 102 being docked and connected with described pulling force stroke groove 101,
Described elastic thread connects end 31 and is arranged in described elastic thread stroke groove 102, described elastic thread 30 tail end edge
Outer gun barrel 22 outer wall is tied up through the through hole of setting on elastic thread 30 metallic channel and is enclosed within elastic thread connection end 31.Excellent
Choosing, described elastic thread stroke groove 102 left and right sides cell wall is provided with a connection end gathering sill 102a relatively,
As shown in Figure 10, the both sides of described elastic thread connection end 31 extend longitudinally beyond the sliding wing 311 of guiding, described guiding
Sliding wing 311 is fastened in connection end gathering sill 102a, is used for ensureing that elastic thread connects end 31 holding level straight
Line moves, and the cell body length of described connection end gathering sill 102a is corresponding to the length of elastic thread stroke groove 102.
One end that described bracing wire automated attachment 80 is connected with elastic thread 30 arranges a power tractive end 83, institute
State the front end of the stroke of tension terminal correspondence elastic thread stroke groove 102 of power tractive end 83, described power tractive
The end of the retraction stroke terminal correspondence elastic thread stroke groove 102 of end 83.
As shown in figure 11, described power tractive end 83 is provided with the card running-on 831 with some tension, described card
The two ends up and down of running-on 831 are relatively protruded and are provided with cutting ferrule point 832, and described cutting ferrule point about 832 mutually abuts,
As shown in Figure 10, described elastic thread connection end 31 is provided with one for tying up hole 1 He of set elastic thread 30
The hole 2 313 coordinated with described cutting ferrule point 832.
The stroke of tension to power tractive end 83 is abutted when elastic thread is connected end 31 by described power tractive end 83
During terminal, open as it is shown in figure 9, the card running-on 831 of described power tractive end 83 is connected end abutting by elastic force,
Described cutting ferrule point about 832 is fastened in described hole 2 313 relatively, described power tractive end 83 and elastic thread
Connect end 31 cutting ferrule to connect.I.e. when manual self-tightening key 84 is pulled to the minimum of contraction stroke end of coil tension spring 90,
Described bracing wire automated attachment 80 stretches in elastic thread stroke groove 102, and described power tractive end 83 is by elastic force
Line connects end 31 and abuts to stroke of tension terminal, and elastic thread connection end 31 is carried out cutting ferrule connection.
Wherein, as shown in Figure 8, the retraction stroke terminal of described power tractive end 83 arranges one and expands a 102b,
The i.e. end of elastic thread stroke groove 102 is provided with one and expands a 102b, at described power tractive end 83 post-tensioning backward
Expand described power tractive end 83 during to retraction stroke terminal, make elastic thread connect end 31 and depart from power tractive end
83.Preferably, described in expand a 102b be wedge type, described in expand the width of a 102b along power tractive end
The shrinkage direction of 83 is gradually increased, thus is outwards strutted by the point of cutting ferrule up and down 832 of power tractive end 83, from
The hole 2 313 of described elastic thread connection end 31 is ejected.
The described top of elastic thread stroke groove 102 and the longitudinally wide of end are more than elastic thread stroke groove 102 groove
Body longitudinally wide.Concrete, as shown in Figure 8, described elastic thread stroke groove 102 front end is provided with up and down certainly
By notch 102c, the bottom cell wall concave downward of described elastic thread stroke groove 102 end goes out enlarging groove 102d,
Top cell wall is provided with and expands a mouthful 102e, and described elastic thread stroke groove 102 top is corresponding to power tractive end 83
Stroke of tension terminal, described elastic thread stroke groove 102 end is whole corresponding to the retraction stroke of power tractive end 83
End, described power tractive end 83 has longitudinal unsupported width in stroke of tension terminal and retraction stroke end.
Therefore, when described power tractive end 83 elastic thread connected end 31 abut to stroke of tension terminal time,
Described power tractive end 83 will not be limited by elastic thread stroke groove 102 is longitudinally wide, its card running-on 831
Connected end by elastic force and abut longitudinal opening, make described cutting ferrule point about 832 relatively be fastened in described hole 2 313
In, it is achieved power tractive end 83 is connected end 31 cutting ferrule with elastic thread and connects.
When described power tractive end 83 post-tensioning is to retraction stroke terminal, described power tractive end 83 will not be subject to
To the restriction that elastic thread stroke groove 102 is longitudinally wide, its card running-on 831 is expanded a 102b and is expanded, and makes bullet
The line of force connects end 31 and departs from power tractive end 83.
As in figure 2 it is shown, described gun barrel 20 is connected with gun body 10 by a ferrule structure 60, described card noose
Structure 60 includes the interior button parts 61 being arranged on described interior gun barrel 21 tail end, and is arranged on described gun body inner tube 11
On trip parts 62, described gun body inner tube 11 is provided with the draw-in groove 611 being equipped with interior button parts 61,
The described the most described draw-in groove of parts 62 611 of tripping is arranged.Preferably, described interior gun barrel 21 tail end and gun body
The port that inner tube 11 connects is provided with sealing ring 63, the seam between internal gun barrel 21 and gun body inner tube 11
Gap seals.
When described interior gun barrel 21 docks with gun body inner tube 11 buckle, in described interior button parts 61, it is buckled in institute
Stating in draw-in groove 611, described sealing ring 63 is to the seam between interior gun barrel 21 and the communications ports of gun body inner tube 11
Gap seals, it is ensured that the negative pressure exponent in interior gun barrel 21.When needing the gun barrel 20 more renewed, will solve
Interior button parts 61 are supported out draw-in groove 611, untie interior gun barrel 21 and gun body by the button opposed, inwardly directed clinching of parts 62
Cutting ferrule relation between inner tube 11, it is achieved gun barrel 20 separates with gun body 10, it is simple to install new gun barrel 20.
Meanwhile, the outer wall of described outer gun barrel 22 being also provided with a snap part, described gun body 10 is provided with described
Snap part coordinates the bayonet slot of buckle, and described outer gun barrel 22 is snapped in gun body 10 by snap part.
After the elastic thread 30 on an above-mentioned gun barrel 20 makes to be finished, elastic thread 30 to be continuing with is carried out
When operation pricked by set, can disassemble making the gun barrel 20 being finished elastic thread 30 in gun body 10, and will manually
Self-tightening key 84 is pulled to the minimum of contraction stroke end of coil tension spring 90, now, described Self-tightened spanner 100 inverse time
Pin ejects and abuts bracing wire automated attachment 80, then is led to by the supporting new gun barrel 20 equipped with elastic thread 30
Crossing ferrule structure 60 and snap part is fastened in gun body 10, elastic thread is connected by described power tractive end 83
End 31 abutting, to stroke of tension terminal, connects end and carries out cutting ferrule connection, then complete new gun barrel elastic thread 30
The installation of 20, can restart to carry out above-mentioned set and prick operation.
As in figure 2 it is shown, the outer wall of described interior gun barrel 21 is provided with a limited block 70, described outer gun barrel 22
Inwall the most described limited block 70 depression is provided with a stopper slot 71, and described stopper slot 71 has along gun body 10 long
The cell body that degree direction extends, described limited block 70 is connected in described stopper slot 71, therefore, described interior rifle
Pipe 21 can mutually externally gun barrel 22 carry out the displacement movement of length direction, but protect with outer gun barrel 22 in the axial direction
Hold fixing relative position relation.
Meanwhile, the mouth of pipe of described looping and binding device is provided with a limited cap 72, and described limited cap 72 is coated at interior gun barrel
On the outer wall of 21, elastic thread ring set is deducted on the outer wall of interior gun barrel 21.Further, described outer gun barrel
22 are all higher than pipe diameter, the mouth of pipe of described outer gun barrel 22 and interior gun barrel 21 with the nozzle diameter of interior gun barrel 21
The mouth of pipe between be provided with a dislocation space, be provided with a limited bolt 73, described limited bolt 73 in described dislocation space
Through the tube wall of outer gun barrel 22 and be connected to the tube wall of interior gun barrel 21.Described limited cap 72 and limited bolt 73
For ensureing that ring set will not come off in the case of untapped in interior gun barrel 21.
The present invention provides the automatic tightening elastic thread method to set up of a kind of looping and binding device and self-tightening type elastic thread set to prick
Device, it provides the back stretch strained backward, to bullet by coil tension spring 90 for bracing wire automated attachment 80
The line of force 30 carries out automatic tension, and doctor only needs to detain Self-tightened spanner 100, makes Self-tightened spanner 100 unclamp right
The abutting of coil tension spring 90, can make bracing wire automated attachment 80 under the drive of coil tension spring 90 restoring force
Elastic thread 30 is strained backward, so that the ring set aperture of elastic thread 30 front end is contracted to rapidly minimum-value aperture
And close to zero, and then the set realizing more fastening destination organization is pricked, and owing to elastic thread 30 has well
Elastic shrinkage, gradually downright bad at destination organization and during coming off, the ring set of elastic thread 30 is the most therewith
Reduce, until after necrotizing target tissue comes off, the ulcer surface of formation is minimum, thus reduces complicated by postoperative and go out
The probability of blood.The automatic tightening elastic thread method to set up of looping and binding device of the present invention and self-tightening type elastic thread set are pricked
Device, simple in construction, easy to operate, be suitable to extensively apply.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (15)
1. the automatic tightening elastic thread method to set up in a looping and binding device, it is characterised in that include along looping and binding device
The outer wall of outer gun barrel add at least elastic thread, the adjustable ring set in formation aperture, front end of described elastic thread
Being placed on the outer wall of interior gun barrel front end, the tail end of described elastic thread is connected with the bracing wire automated attachment of looping and binding device,
The other end of described bracing wire automated attachment is connected by a coil tension spring and a Self-tightened spanner, pull elastic thread
During tail end, Self-tightened spanner unclamps the abutting to coil tension spring, and bracing wire automated attachment is at coil tension spring restoring force
Drive under elastic thread is strained backward so that the ring set aperture of elastic thread front end reduces rapidly.
Automatic tightening elastic thread method to set up in looping and binding device the most according to claim 1, it is characterised in that
The outer gun barrel arranging looping and binding device can be subjected to displacement by internal gun barrel or interior gun barrel external gun barrel mutually mutually, makes elastic thread
Come off on gun barrel.
Automatic tightening elastic thread method to set up in looping and binding device the most according to claim 2, it is characterised in that
The external diameter of the internal diameter and described interior gun barrel that arrange described outer gun barrel matches, outer gun barrel internal gun barrel or interior rifle mutually
Pipe is time externally gun barrel is subjected to displacement mutually, the tube wall of described outer gun barrel elastic thread is released in the body of gun barrel.
Automatic tightening elastic thread method to set up in looping and binding device the most according to claim 1, it is characterised in that
The retraction stroke maximum tension length more than elastic thread of bracing wire automated attachment is set.
5. a self-tightening type elastic thread looping and binding device, including gun body and gun barrel, described gun barrel includes that interior gun barrel is with outer
Gun barrel, it is characterised in that also include at least elastic thread, described elastic thread is along the outer gun barrel of looping and binding device
Outer wall is arranged, and the adjustable ring set in formation aperture, front end of described elastic thread is placed on the outer wall of interior gun barrel front end,
The tail end of described elastic thread is connected with the bracing wire automated attachment of looping and binding device, described bracing wire automated attachment another
One end is connected by a coil tension spring and a Self-tightened spanner, and during pull elastic thread tail end, Self-tightened spanner unclamps right
The abutting of coil tension spring, elastic thread is pulled back under the drive of coil tension spring restoring force by bracing wire automated attachment
Tightly so that the ring set aperture of elastic thread front end reduces rapidly.
Self-tightening type elastic thread looping and binding device the most according to claim 5, it is characterised in that described bracing wire is automatic
The retraction stroke of connector is more than the maximum tension length of elastic thread.
Self-tightening type elastic thread looping and binding device the most according to claim 5, it is characterised in that described outer gun barrel
Internal diameter matches with the external diameter of described interior gun barrel, internally gun barrel or the interior gun barrel externally gun barrel generation mutually mutually of outer gun barrel
During displacement, elastic thread is released the body of interior gun barrel by the tube wall of described outer gun barrel.
Self-tightening type elastic thread looping and binding device the most according to claim 5, it is characterised in that described elastic thread is taken
The position being buckled in outer gun barrel arranges an elastic thread bayonet socket, and described elastic thread passes described elastic thread bayonet socket and bracing wire
Automated attachment connects.
Self-tightening type elastic thread looping and binding device the most according to claim 5, it is characterised in that described gun barrel passes through
One ferrule structure is connected with gun body.
Self-tightening type elastic thread looping and binding device the most according to claim 5, it is characterised in that described interior gun barrel leads to
Crossing a dislocation mechanism controls and the relative displacement with outer gun barrel occurs, described dislocation mechanism is arranged at gun body rear end,
It includes a reset key and a dislocation button,
Described reset key and the coaxially connected setting of tail end of described gun body inner tube, described reset key and gun body
Between be provided with provide back stretch transverse elasticity parts, described reset key is provided with a spacing hole；
Described dislocation button is longitudinally through described spacing hole, and is connected with gun body by a longitudinal elastic elements,
The body of described dislocation button is provided with the spacing axis body that diameter closes with described spacing hole diameter compatible；
Wherein, the diameter of described spacing hole is more than the body diameter of described dislocation button, when described dislocation button
Moving down, spacing axis body misplaces with spacing hole, gun barrel external rifle mutually in making described gun body inner tube drive
Pipe is subjected to displacement.
11. self-tightening type elastic thread looping and binding devices according to claim 5, it is characterised in that described looping and binding device is also
Including an elastic thread automatic tensioning mechanism, described elastic thread automatic tensioning mechanism includes,
Walk around the bracing wire automated attachment that elastic thread bayonet socket is connected with elastic thread tail end；
One end is connected to described gun body, and the other end is connected to the coil tension spring of described bracing wire automated attachment；
One deduction is at the Self-tightened spanner of the free end of described bracing wire automated attachment；
Self-tightened spanner unclamps the deduction of the free end to bracing wire automated attachment, and bracing wire automated attachment is stretched
Spring resilience backward, pulls the ring set aperture of elastic force coil front end to reduce rapidly.
12. according to self-tightening type elastic thread looping and binding device described in claim 11, it is characterised in that in described gun body
Being provided with a pulling force stroke groove, described bracing wire automated attachment is built in described pulling force stroke groove, and it is freely
End longitudinally projects described pulling force stroke groove to gun body both sides, and extends self-tightening key.
13. according to self-tightening type elastic thread looping and binding device described in claim 12, it is characterised in that described elastic thread
Tail end be provided with an elastic thread and connect end, the outer wall of the outer gun barrel of described looping and binding device be provided with one with described pulling force row
The elastic thread stroke groove that journey groove is docked and connected, described elastic thread connects end and is arranged in described elastic thread stroke groove,
Described elastic thread tail end is tied up along outer gun barrel outer wall through the through hole arranged on elastic thread metallic channel and is enclosed within elastic thread even
Connect end；One end that described bracing wire automated attachment is connected with elastic thread arranges a power tractive end, described power
Tractive end is connected end cutting ferrule and connects with elastic thread.
14. according to self-tightening type elastic thread looping and binding device described in claim 13, it is characterised in that described power leads
The retraction stroke terminal of pull end arranges one and expands a little, is used at described power tractive end post-tensioning backward to shrinking row
Expand described power tractive end during journey terminal, make elastic thread connect end and depart from power tractive end.
15. according to self-tightening type elastic thread looping and binding device described in claim 14, it is characterised in that described elastic thread
Longitudinally wide more than elastic thread stroke groove cell body of the top of stroke groove and the longitudinally wide of end.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488738.6A CN105997180B (en) | 2016-06-28 | 2016-06-28 | Automatic tensioning elastic thread arranging method of loop ligature device and self-tightening elastic thread loop ligature device |
| PCT/CN2017/089297 WO2018001145A1 (en) | 2016-06-28 | 2017-06-21 | Ligator setup method for automatically tightening elastic line and self-tightening elastic line ligator |
| EP17819142.5A EP3476314B1 (en) | 2016-06-28 | 2017-06-21 | Self-tightening elastic line ligator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488738.6A CN105997180B (en) | 2016-06-28 | 2016-06-28 | Automatic tensioning elastic thread arranging method of loop ligature device and self-tightening elastic thread loop ligature device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105997180A true CN105997180A (en) | 2016-10-12 |
| CN105997180B CN105997180B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610488738.6A Active CN105997180B (en) | 2016-06-28 | 2016-06-28 | Automatic tensioning elastic thread arranging method of loop ligature device and self-tightening elastic thread loop ligature device |
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| CN (1) | CN105997180B (en) |
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| CN106618662A (en) * | 2016-11-13 | 2017-05-10 | 张焱 | Disposable pneumatic boosted minimally invasive anorectal loop ligature anastomat |
| CN107510486A (en) * | 2017-07-12 | 2017-12-26 | 文德意 | A kind of Minimally Invasive Surgery vascular ligation device |
| WO2018001145A1 (en) * | 2016-06-28 | 2018-01-04 | 张慧 | Ligator setup method for automatically tightening elastic line and self-tightening elastic line ligator |
| CN108635002A (en) * | 2018-04-04 | 2018-10-12 | 微尔创（武汉）医疗科技有限公司 | The ferrule structure of gun barrel in self-tightening type elastic thread looping and binding device |
| CN108635001A (en) * | 2018-04-04 | 2018-10-12 | 微尔创（武汉）医疗科技有限公司 | The structure of gun barrel of self-tightening type elastic thread looping and binding device |
| CN109674512A (en) * | 2019-01-30 | 2019-04-26 | 程先本 | A kind of automatic cushion rubber elastic force wire cutting looping and binding device |
| CN111317547A (en) * | 2018-12-14 | 2020-06-23 | 山东威瑞外科医用制品有限公司 | Elastic thread anorectal ligation device |
| CN112006754A (en) * | 2020-09-15 | 2020-12-01 | 微尔创（武汉）医疗科技有限公司 | Automatic foreskin elastic thread ligation anastomosis assembly |
| KR20230009534A (en) * | 2021-07-09 | 2023-01-17 | 한겸진 | Hemorrhoidal ligation device for hemorrhoids excision |
| WO2024051460A1 (en) * | 2022-09-06 | 2024-03-14 | 南京鼓楼医院 | Left atrial appendage ligator |
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| WO2018001145A1 (en) * | 2016-06-28 | 2018-01-04 | 张慧 | Ligator setup method for automatically tightening elastic line and self-tightening elastic line ligator |
| CN106618662A (en) * | 2016-11-13 | 2017-05-10 | 张焱 | Disposable pneumatic boosted minimally invasive anorectal loop ligature anastomat |
| CN107510486A (en) * | 2017-07-12 | 2017-12-26 | 文德意 | A kind of Minimally Invasive Surgery vascular ligation device |
| CN107510486B (en) * | 2017-07-12 | 2020-07-21 | 文德意 | Blood vessel ligation device for minimally invasive surgery |
| CN108635002A (en) * | 2018-04-04 | 2018-10-12 | 微尔创（武汉）医疗科技有限公司 | The ferrule structure of gun barrel in self-tightening type elastic thread looping and binding device |
| CN108635001A (en) * | 2018-04-04 | 2018-10-12 | 微尔创（武汉）医疗科技有限公司 | The structure of gun barrel of self-tightening type elastic thread looping and binding device |
| CN111317547A (en) * | 2018-12-14 | 2020-06-23 | 山东威瑞外科医用制品有限公司 | Elastic thread anorectal ligation device |
| CN111317547B (en) * | 2018-12-14 | 2022-04-01 | 山东威瑞外科医用制品有限公司 | Elastic thread anorectal ligation device |
| CN109674512A (en) * | 2019-01-30 | 2019-04-26 | 程先本 | A kind of automatic cushion rubber elastic force wire cutting looping and binding device |
| CN112006754A (en) * | 2020-09-15 | 2020-12-01 | 微尔创（武汉）医疗科技有限公司 | Automatic foreskin elastic thread ligation anastomosis assembly |
| CN112006754B (en) * | 2020-09-15 | 2022-03-25 | 微尔创（武汉）医疗科技有限公司 | Automatic foreskin elastic thread ligation anastomosis assembly |
| KR20230009534A (en) * | 2021-07-09 | 2023-01-17 | 한겸진 | Hemorrhoidal ligation device for hemorrhoids excision |
| KR102618019B1 (en) | 2021-07-09 | 2024-01-02 | (주) 벨류원코리아 | Hemorrhoidal ligation device for hemorrhoids excision |
| WO2024051460A1 (en) * | 2022-09-06 | 2024-03-14 | 南京鼓楼医院 | Left atrial appendage ligator |
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Effective date of registration: 20180411 Address after: 430000 No. 11, Foshan Ling Ling Road, East Lake New Technology Development Zone, Wuhan, Hubei Patentee after: Weir (Wuhan) Medical Technology Co., Ltd. Address before: 430000 82 Democratic Road, Wuchang District, Wuhan, Hubei Patentee before: Zhang Hui |