CN105997180B - 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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- CN105997180B CN105997180B CN201610488738.6A CN201610488738A CN105997180B CN 105997180 B CN105997180 B CN 105997180B CN 201610488738 A CN201610488738 A CN 201610488738A CN 105997180 B CN105997180 B CN 105997180B
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- elastic thread
- gun barrel
- self
- 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
-
- 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
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, and in particular to a kind of automatic tightening elastic thread method to set up of looping and binding device and from
Compact form elastic thread looping and binding device.
Background technology
Hemorrhoid Loop ligature (inhale also known as hemorrhoid plastic loop ligation art, hemorrhoid and prick art etc.) is the common method for treating hemorrhoid, curative effect
Definitely, its principle is the root that special cushion rubber (such as rubber ring, latex circle, silica gel ring, elastic force coil etc.) set is tied in internal hemorrhoid
Portion's (or basilar parts), takes this elastic recovery force blocking hemorrhoid blood supply using cushion rubber, is allowed to necrosis, atrophy, comes off, so as to reach
Cure purpose.
The traditional instruments for being previously used for implementing the difficult to handle art of set are extremely simple and crude, during operating cost, arduously, are susceptible to complication.
To change this situation, occur in that nearly ten years it is a kind of make set art of pricking the hand become simple automatization's apparatus, i.e. automatic hemorrhoid
Skin ulcer looping and binding device (also known as repeating type haemorrhoids ligation apparatus, continuous hemorrhoid suction ligation device etc.).Carry out covering the excellent of difficult to handle art using the apparatus
Putting is：It is easy to operate, quick, accurate；One can complete operation, take only 5～10 minutes；And occur complication probability compared with
It is low；Patient need not typically anaesthetize, and pain is slight；Most patients also without be in hospital, low in treatment cost.
1. haemorrhoids ligation apparatus are divided to two kinds of classifications 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 both at home and abroad other kinds of haemorrhoids ligation apparatus, have one
The characteristics of common, i.e., they are tied in the stock of hemorrhoid root using " cushion rubber " as set；And make the cushion rubber and can select
Raw material 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 technologies
Index is directly related.And prick material as set by the use of cushion rubber and have the shortcomings that some are intrinsic：1. due to natural rubber (or latex,
Silica gel etc.) inherent character, the internal orifice dimension for limiting cushion rubber can not be infinitely small, typically can only make 2.0～2.5mm (at least not
1.5mm must be less than), easily rupture when otherwise set pricks stretching.This means that
In size range 1.5mm), the hemorrhoidal tissue that quilt cover is pricked is not acted on by any elastic recovery force, final tissue necrosiss
The ulcer scope formed after coming off is also in 2.0～2.5mm (at least not less than 1.5mm) left and right；2. when cushion rubber is pacified with extended state
When being mounted on looping and binding device, as time went on, easily gradually there is fatigue and make internal orifice dimension become big；3. climate, environment etc. because
Element affects, and cushion rubber is easily aging with time generation, so that elastic recovery force dies down.
Due to the impact of factors above, it would be possible to cause following consequence：1. it is postoperative that cushion rubber slippage occurs in a short time, cause and control
Treat failure；2. cause postoperative hemorrhage complication (according to statistics, the postoperative Bleeding rate of hemorrhoid plastic loop ligation be 2%～5%)；3. hemorrhoid block
Downright bad incomplete, ulcer surface healing delay affects the treatment.
B：The manual type elastic thread haemorrhoids ligation apparatus of 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 plastic loop ligation device glue can be overcome
Circle pricks not tight defect, but more complicated to the process of destination organization fastening, and positioning and ejection push away line design operation flow process are more, make
With inconvenient, when the technical scheme carries out set bundle operation, first can only prick from emitting head release set and organize, in release push away line pipe,
The artificial push away line pipe elastic thread ring set that tenses is easily caused elastic force in operating process to ligature hemorrhoidal tissue (or other destination organizations)
Wire loop set is slipped from tissue, affects therapeutic effect, and in art, the artificial ligation ring that tenses is unstable and hold and rob shakiness and may all make ring set
Slip from tissue, lose therapeutic effect, and manually tense the bad grasp of ligation ring dynamics, easily form too small tightness of exerting oneself
Not enough, firmly excessive elastic thread breaks.
The content of the invention
In view of this, it is necessary to which providing one kind can carry out tightening up action automatically, make the ring set aperture of elastic force line front end fast
Speed be contracted to minimum-value aperture and close to zero looping and binding device automatic tightening elastic thread method to set up and self-tightening type elastic thread set prick
Device.
The present invention provides a kind of automatic tightening elastic thread method to set up of looping and binding device, and which includes the outer gun barrel along looping and binding device
Outer wall adds at least one elastic thread, and the front end of the elastic thread forms the outer wall that the adjustable ring set in aperture is placed on interior gun barrel front end
On, the tail end of the elastic thread is connected with the bracing wire automated attachment of looping and binding device, and the other end of the bracing wire automated attachment leads to
Cross an adjustable spring to be connected with a Self-tightened spanner, during pull elastic thread tail end, Self-tightened spanner unclamps the abutting to adjustable spring, draws
Elastic thread is tensed under the drive of adjustable spring restoring force by line automated attachment backward so that the ring set aperture of elastic force line front end
It is rapid to reduce.
A kind of self-tightening type elastic thread looping and binding device, which includes gun body and gun barrel, wherein, the gun barrel includes interior gun barrel and outer rifle
Pipe, and at least one elastic thread, the elastic thread are arranged along the outer wall of the outer gun barrel of looping and binding device, the front end shape of the elastic thread
It is placed on the outer wall of interior gun barrel front end into the adjustable ring set in aperture, the tail end of the elastic thread is connected automatically with the bracing wire of looping and binding device
Part connects, and the other end of the bracing wire automated attachment is connected with a Self-tightened spanner by an adjustable spring, pull elastic thread tail
During end, Self-tightened spanner unclamps the abutting to adjustable spring, and bracing wire automated attachment is under the drive of adjustable spring restoring force by bullet
The line of force is tensed backward so that the ring set aperture of elastic force line front end reduces rapidly.
The present invention provides a kind of automatic tightening elastic thread method to set up and self-tightening type elastic thread looping and binding device of looping and binding device, and which leads to
Crossing adjustable spring and the back stretch for tensing backward being provided for bracing wire automated attachment, automatic tension is carried out to elastic thread, doctor is only
Need to detain Self-tightened spanner, make Self-tightened spanner unclamp the abutting to adjustable spring, you can bracing wire automated attachment to be made in flexible bullet
Elastic thread is tensed backward under the drive of spring restoring force, so that the ring set aperture of elastic force line front end is contracted to rapidly minimum-value aperture
And close to zero, and then the set for realizing more fastening destination organization is pricked, and as elastic thread has good elastic shrinkage,
In destination organization gradually necrosis during coming off, the ring set of elastic thread also reduces therewith, until necrotizing target tissue comes off
Afterwards, the ulcer surface of formation is minimum, so as to reduce the probability of complicated by postoperative bleeding.The automatic tightening bullet of looping and binding device of the present invention
Line of force method to set up and self-tightening type elastic thread looping and binding device, it is simple structure, easy to operate, it is suitable to extensively application.
Description of the drawings
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 dislocation mechanism of the present invention；
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 that the power of elastic thread automatic tensioning mechanism of the present invention pulls end.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated, it will be appreciated that specific embodiment described herein only to explain the present invention, and
It is not used in the restriction present invention.
As depicted in figs. 1 and 2, the present invention provides a kind of automatic tightening elastic thread method to set up of looping and binding device, and which includes edge
The outer wall of the outer gun barrel 22 of looping and binding device adds at least one elastic thread 30, and the front end of the elastic thread 30 forms the adjustable ring in aperture
It is placed on the outer wall of 21 front end of interior gun barrel, the tail end of the elastic thread 30 is connected with the bracing wire automated attachment 80 of looping and binding device,
The other end of the bracing wire automated attachment 80 is connected with a Self-tightened spanner 100 by an adjustable spring 90, now, the elastic force
Line 30 is in extended state, and when pull 30 tail end of elastic thread, Self-tightened spanner 100 unclamps the abutting to adjustable spring 90, bracing wire
Elastic thread 30 is tensed under the drive of 90 restoring force of adjustable spring by automated attachment 80 backward so that the ring of 30 front end of elastic thread
Set aperture reduces rapidly.
In the present embodiment, the elastic thread 30 is tied to form ring set by the pirate for only allowing 30 unidirectional pull of elastic thread,
The outer gun barrel 22 of the looping and binding device can relatively interior gun barrel 21 or interior gun barrel 21 outer gun barrel 22 relatively be subjected to displacement, the outer gun barrel
22 internal diameter is engaged with the external diameter of the interior gun barrel 21, and in original state, the mouth of pipe of the interior gun barrel 21 protrudes from institute
The mouth of pipe for stating outer gun barrel 22 is arranged.When outer gun barrel 22 is subjected to displacement relatively for the relatively interior gun barrel 21 of outer gun barrel 22 or interior gun barrel 21,
The tube wall of the outer gun barrel 22 is released the body of interior gun barrel 21 by elastic thread 30.
The maximum tension length of the retraction stroke more than elastic thread 30 of the bracing wire automated attachment 80 is set, therefore, move
Elastic thread 30 can be stretched to maximum tension length by power drawing end, make the ring set aperture of 30 front end of elastic thread be contracted to minimum aperture
Footpath close to zero, and then the set for realizing more fastening destination organization pricks, and as there is elastic thread 30 good elasticity to receive
Contracting, in destination organization gradually necrosis during coming off, the ring set of elastic thread 30 also reduces therewith, until destination organization is bad
After extremely coming off, the ulcer surface of formation is minimum, so as to reduce the probability of complicated by postoperative bleeding.
Said method is can be applicable on medical apparatus and instruments, is pricked using the self-tightening type elastic thread set of 30 method to set up of above-mentioned elastic thread
Device, as depicted in figs. 1 and 2, including gun body 10 and gun barrel 20, wherein, the gun barrel 20 includes interior gun barrel 21 and outer gun barrel 22, with
And at least one elastic thread 30, the elastic thread 30 is arranged along the outer wall of the outer gun barrel 22 of looping and binding device, before the elastic thread 30
End forms the adjustable ring set in aperture and is placed on the outer wall of 21 front end of interior gun barrel, the tail end of the elastic thread 30 and the bracing wire of looping and binding device
Automated attachment 80 connects, and the other end of the bracing wire automated attachment 80 passes through an adjustable spring 90 and a Self-tightened spanner 100
Connection, during pull 30 tail end of elastic thread, Self-tightened spanner 100 unclamps the abutting to adjustable spring 90, and bracing wire automated attachment 80 exists
Elastic thread 30 is tensed backward under the drive of 90 restoring force of adjustable spring so that contract rapidly in the ring set aperture of 30 front end of elastic thread
It is little.
The elastic thread 30 is made up of inside and outside two-layer；Internal layer (resilient strip) has the special height of high flexibility for ribbon
Molecular material；Outer layer (integument) is netted braiding layer, is wrapped in internal layer surface, is also made by special macromolecular material, energy
With internal layer resilient strip stretching and diastole；This special double-decker of elastic thread 30 makes which not only have good elasticity, and
And powerful axial tension can be born and do not ruptured, when the elastic thread ring set in extended state is placed on destination organization
Tight and reduced bore can also further be taken out because its own resilient；In addition elastic thread 30 is not easy to old when in unstretched condition
Change and fatigue, long service life, set can be improved and prick effect.
Gun body inner tube 11 is provided with the gun body 10, the front end of the gun body inner tube 11 is connected with interior gun barrel 21, tail end with
Negative pressure trachea is connected, i.e., it is negative pressure that described interior gun barrel 21 is lower in working order, carries out absorption contraction to destination organization.The elastic force
30 hasp of line arranges an elastic thread bayonet socket 221 in the position of outer gun barrel 22, and the tail end of elastic thread 30 passes through the elastic thread bayonet socket
221 are connected with the bracing wire automated attachment 80 of looping and binding device, and elastic thread bayonet socket 221 props up pirate's knot of ring set, when destination organization quilt
Absorption is when lifting, and the relatively interior gun barrel 21 of outer gun barrel 22 or interior gun barrel 21 outer gun barrel 22 relatively is subjected to displacement, the outer gun barrel 22
Tube wall is released the body of interior gun barrel 21 by elastic thread ring set, makes elastic thread 30 come off from gun barrel 20, and suction interior gun barrel 21 is managed
The destination organization of mouth is tightened.Meanwhile, there is relative displacement, elastic thread bayonet socket 221 between elastic thread bayonet socket 221 and elastic thread ring set
Elastic thread 30 is also released the body of interior gun barrel 21, makes elastic thread 30 come off from gun barrel 20, and carrying out the contraction of ring set aperture
When, elastic thread bayonet socket 221 can prop up pirate's knot, it is to avoid ring set is slid from destination organization.
There is the relative displacement with outer gun barrel in the interior gun barrel, the dislocation mechanism is arranged at by a dislocation mechanism controls
Gun body rear end, as shown in Fig. 2 which includes a reset key 40 and a dislocation button 50, the reset key 40 and the gun body
The coaxially connected setting of tail end of inner tube 11, is provided with the transverse elasticity for providing back stretch between the reset key 40 and gun body 10
Part 41, specifically, the transverse elasticity part 41 provides the back stretch for moving backward for the reset key 40；Meanwhile,
The reset key 40 is provided with a spacing hole 42, and the dislocation button 50 is longitudinally through the spacing hole 42 and vertical by one
Be connected to elastomeric element 51 (not marking in figure) with gun body 10, it is described dislocation button 50 body be provided with diameter with it is described
The spacing axis body 52 that 42 diameter of spacing hole is engaged；Wherein, the sheet with diameter greater than the dislocation button 50 of the spacing hole 42
Body diameter, when the dislocation button 50 is moved down, there is dislocation with spacing hole 42 in spacing axis body 52, make the gun body inner tube 11
In driving, the outer gun barrel 22 relatively of gun barrel 21 is subjected to displacement.
As shown in Figure 3 and Figure 6, the gun body inner tube 11 is provided with the first elastic force cutting ferrule end 411, and the gun body 10 is provided with
Second elastic force cutting ferrule end 412, the transverse elasticity part 41 are sleeved on the first elastic force cutting ferrule end 411 and the second elastic force cutting ferrule end
Between 412, and the spacing between the first elastic force cutting ferrule end 411 and the second elastic force cutting ferrule end 412 is more than the second elastomeric element
Free state length.Therefore, second elastomeric element is in expansion state, and which is to carry between gun body inner tube 11 and gun body 10
For the back stretch of relative displacement, in the case where keeping gun body 10 motionless, the reset key 40 is provided and is moved backward
Back stretch.
As shown in figure 3, the spacing hole 42 includes the first spacing hole 421 being connected and the second spacing hole 422, described
The diameter with diameter greater than the second spacing hole 422 of one spacing hole 421, and on the horizontal direction along gun body 10, second limit
Position hole 422 is located at the front end of the first spacing hole 421.
As shown in figure 4, the spacing axis body 52 includes the first spacing axis body 521 and the second spacing axis body 522, described first
The diameter of spacing axis body 521 and the second spacing axis body 522 is matched with the diameter of the first spacing hole 421, the second spacing hole 422 respectively
Close, and on the longitudinal direction perpendicular to gun body 10, the first spacing axis body 521 is arranged on the interior of the second spacing axis body 522
Side.
When 50 longitudinal direction of dislocation button motion, the first spacing axis body 521 and first spacing hole 421 into gun body 10
Generation is longitudinally displaced, and under the drive of the back stretch of the second elastomeric element, the second spacing axis body 522 is connected to the second spacing hole
In 422, meanwhile, the gun body inner tube 11 drives the dislocation displacement that the outer gun barrel 22 relatively of interior gun barrel 21 occurs backward, be sleeved in
The elastic thread 30 of 21 front end of gun barrel is enclosed and is slid from interior gun barrel 21 under the braking of elastic thread bayonet socket 221, is realized to destination organization
Carry out set bundle.
When the reset key 40 horizontal motion, the second spacing axis body 522 and the second spacing hole 422 into gun body 10
Generation transversion malposition, under the drive of the back stretch of the first elastomeric element, the upper outer motion in 521 longitudinal direction of the first spacing axis body is abutted
In the first spacing hole 421, meanwhile, 11 relative gun body 10 of the gun body inner tube moves forward to initial position, carries out next time
The installation of gun barrel 20.
After destination organization is entangled by elastic thread ring set, 30 automatic tensioning mechanism pair of elastic thread arranged on the looping and binding device
Elastic thread 30 is tensed backward so that the ring set aperture of 30 front end of elastic thread reduces rapidly.30 auto-tensioning of the elastic thread
Mechanism include through elastic thread bayonet socket 221, and 30 tail end of elastic thread connection bracing wire automated attachment 80；One end is connected to described
Gun body 10, the other end are connected to the adjustable spring 90 of the bracing wire automated attachment 80；One deduction connects automatically in the bracing wire
The Self-tightened spanner 100 of the free end of part 80；When Self-tightened spanner 100 unclamps the deduction of the free end to bracing wire automated attachment 80,
Bracing wire automated attachment 80 is pulled the ring set aperture of the circle of elastic thread 30 front end to reduce rapidly by the resilience backward of adjustable spring 90.
Specifically, as shown in Fig. 2 being provided with a pulling force stroke groove 101 in the gun body 10 of the looping and binding device, the bracing wire is automatic
Connector 80 is built in the pulling force stroke groove 101, and the tail end of elastic thread 30 is led through elastic thread 30 along 22 outer wall of outer gun barrel
The through hole arranged on wire casing is connected with bracing wire automated attachment 80.
The side of the pulling force stroke groove 101 is provided with the spring groove of setting in parallel, and the adjustable spring 90 is arranged on
In the spring groove 102, as shown in fig. 7, the free end 81 of the bracing wire automated attachment 80 laterally extends a sleeve column 82, institute
State 90 one end of adjustable spring to be connected in the spring groove 102, the other end is sleeved on the sleeve column 82.
Meanwhile, the Self-tightened spanner 100 is arranged on the lower section of pulling force stroke groove 101, and its fulcrum 100a is provided with a rotation
Returning spring, is that Self-tightened spanner 100 provides back stretch counterclockwise.As shown in fig. 6, the Self-tightened spanner 100 is logical by one
Groove 101a is connected with the pulling force stroke groove 101, when the free end for pulling manual self-tightening key 84 to make bracing wire automated attachment 80
81 adjustable spring 90 is moved to 20 rear end of gun barrel minimum of contraction stroke end when, the Self-tightened spanner 100 is ejected counterclockwise, is supported
Connect the free end 81 of the bracing wire automated attachment 80；When Self-tightened spanner 100 is detained clockwise, release to bracing wire automated attachment
80 restriction, then the resilience backward in the presence of the back stretch of adjustable spring 90 of bracing wire automated attachment 80, and pull elastic force
The ring set aperture of 30 front end of line reduces rapidly, meanwhile, the retraction stroke of the bracing wire automated attachment 80 is more than elastic thread 30
Maximum tension length, therefore, elastic thread 30 can be stretched to maximum tension length by bracing wire automated attachment 80, make elastic thread 30
The ring set aperture of front end is contracted to minimum-value aperture and close to zero, and then the set for realizing more fastening destination organization is pricked.
As shown in figure 1, the free end 81 of the bracing wire automated attachment 80 longitudinally projects the pulling force to 10 both sides of gun body
Stroke groove 101 simultaneously extends manual self-tightening key 84, and the manual self-tightening key 84 is provided with rubbing surface, as the bracing wire connects automatically
Maximum tension length of the retraction stroke of fitting 80 more than elastic thread 30, it is when adjustable spring 90 returns back to extended configuration, described
Still there is between the end of the free end 81 and pulling force stroke groove 101 of bracing wire automated attachment 80 one section of stretchable distance, lead to
Cross and rubbing surface is set on manual self-tightening key 84 so as to as the point of application, pull back manual self-tightening key 84 manually, allow elastic thread
The ring set aperture of 30 front ends is continued to zoom out to minimum-value aperture and close to zero.
The tail end of the elastic thread 30 is provided with an elastic thread connection end 31, as shown in figure 8, the outer gun barrel 22 of the looping and binding device
Outer wall is provided with an elastic force lineal travel groove 102 being docked and connected with the pulling force stroke groove 101, and the elastic thread connection end 31 sets
Put in the elastic force lineal travel groove 102,30 tail end of the elastic thread is along 22 outer wall of outer gun barrel through on 30 metallic channel of elastic thread
The through hole of setting is tied up and is enclosed within elastic thread connection end 31.Preferably, it is relative on 102 left and right sides cell wall of elastic force lineal travel groove to set
There is a connection end gathering sill 102a, as shown in Figure 10, the both sides of the elastic thread connection end 31 extend longitudinally beyond the sliding wing of guiding
311, the guiding is slided wing 311 and is fastened in the gathering sill 102a of connection end, straight for ensureing 31 holding level of elastic thread connection end
Line is moved, and the cell body length of the connection end gathering sill 102a is corresponding to the length of elastic force lineal travel groove 102.
One end that the bracing wire automated attachment 80 is connected with elastic thread 30 arranges power drawing end 83, and the power leads
The stroke of tension terminal-pair of pull end 83 answers the front end of elastic force lineal travel groove 102, the power to pull the retraction stroke terminal at end 83
The end of correspondence elastic force lineal travel groove 102.
As shown in figure 11, the power drawing end 83 is provided with the cutting ferrule mouth 831 with some tension, the cutting ferrule mouth 831
The relative protrusion of upper and lower ends be provided with cutting ferrule point 832, the cutting ferrule point about 832 is mutually abutted, as shown in Figure 10, the elastic force
Line connection end 31 is provided with one to be used to tie up the hole 1 of set elastic thread 30 and the hole 2 313 coordinated with the cutting ferrule point 832.
When elastic thread connection end 31 is abutted by power drawing end 83 pulls the stroke of tension terminal at end 83 to power,
As shown in figure 9, the cutting ferrule mouth 831 at the power drawing end 83 is abutted by elastic force connection end and is opened, about 832 phase of cutting ferrule point
To being fastened in the hole 2 313, the power drawing end 83 is connected with 31 cutting ferrule of elastic thread connection end.I.e. when manual self-tightening key
84 be pulled to adjustable spring 90 minimum of contraction stroke end when, the bracing wire automated attachment 80 is stretched in elastic force lineal travel groove 102,
The power drawing end 83 abuts elastic thread connection end 31 to stroke of tension terminal, and carries out cutting ferrule to elastic thread connection end 31
Connection.
Wherein, as shown in figure 8, the retraction stroke terminal at power drawing end 83 arranges one and expands point 102b, i.e. elastic force
The end of lineal travel groove 102 is provided with one and expands point 102b, when post-tensioning is to retraction stroke terminal backward at power drawing end 83
The power drawing end 83 is expanded, makes elastic thread connection end 31 depart from power drawing end 83.Preferably, the point 102b that expands is in
Wedge type, the width for expanding point 102b gradually increase along the shrinkage direction that power pulls end 83, so as to power is pulled end 83
The point of cutting ferrule up and down 832 outwards strut, from the hole 2 313 of the elastic thread connection end 31 eject.
Longitudinally wide the indulging more than 102 cell body of elastic force lineal travel groove on the top and end of the elastic force lineal travel groove 102
To width.Specifically, as shown in figure 8,102 front end of elastic force lineal travel groove is provided with freely up and down notch 102c, the elastic force
The bottom cell wall of 102 end of lineal travel groove is recessed downwards and enlarging groove 102d, and top cell wall is provided with and expands a mouthful 102e, the elastic force
102 top of lineal travel groove pulls the stroke of tension terminal at end 83 corresponding to power, and 102 end of elastic force lineal travel groove corresponds to
Power pulls the retraction stroke terminal at end 83, and the power drawing end 83 has in stroke of tension terminal and retraction stroke end
Longitudinal unsupported width.
Therefore, when power drawing end 83 abuts elastic thread connection end 31 to stroke of tension terminal, the power
Drawing end 83 will not be subject to that elastic force lineal travel groove 102 is longitudinally wide is limited, and its cutting ferrule mouth 831 is abutted longitudinally by elastic force connection end
Open, the cutting ferrule point about 832 is fastened in the hole 2 313 relatively, realize that power drawing end 83 is connected with elastic thread
31 cutting ferrules are held to connect.
When the power pulls 83 post-tensioning of end to retraction stroke terminal, the power drawing end 83 will not be subject to elastic thread
The longitudinally wide restriction of stroke groove 102, its cutting ferrule mouth 831 are expanded point 102b and are expanded, and make elastic thread connection end 31 depart from power
Drawing end 83.
As shown in Fig. 2 the gun barrel 20 is connected with gun body 10 by a ferrule structure 60, the ferrule structure 60 includes setting
Put the interior buckle part 61 in 21 tail end of interior gun barrel, and be arranged on and trip part 62, the rifle in the gun body inner tube 11
In vivo pipe 11 is provided with the draw-in groove 611 being equipped with interior buckle part 61, and the draw-in groove 611 relatively of part 62 of tripping sets
Put.Preferably, the port that 21 tail end of interior gun barrel is connected with gun body inner tube 11 is provided with sealing ring 63, for internal gun barrel 21
With the sealing gap between gun body inner tube 11.
When the interior gun barrel 21 is docked with 11 buckle of gun body inner tube, the draw-in groove will be buckled in the interior buckle part 61
Sealing gap in 611, in the sealing ring 63 pairs between the communications ports of gun barrel 21 and gun body inner tube 11, it is ensured that interior rifle
Negative pressure exponent in pipe 21.When the gun barrel 20 for needing more to renew, 62 opposed, inwardly directed clinching of part will be tripped, by interior buckle part 61
Draw-in groove 611 is supported out, the cutting ferrule relation between interior gun barrel 21 and gun body inner tube 11 is untied, realizes that gun barrel 20 is separated with gun body 10,
It is easily installed new gun barrel 20.Meanwhile, a snap part is also provided with the outer wall of the outer gun barrel 22, the gun body 10 is provided with
The bayonet slot of buckle, the outer gun barrel 22 is coordinated to be snapped in gun body 10 by snap part with the snap part.
After the elastic thread 30 on an above-mentioned gun barrel 20 has been used, will also be continuing with elastic thread 30 carries out set bundle operation
When, can will be disassembled from gun body 10 using the gun barrel 20 of complete elastic thread 30, and manual self-tightening key 84 is pulled to into adjustable spring
90 minimum of contraction stroke end, now, the Self-tightened spanner 100 ejects counterclockwise and bracing wire automated attachment 80 is abutted,
To be fastened in gun body 10 by ferrule structure 60 and snap part with the new gun barrel 20 for being set with elastic thread 30 again, the power
Drawing end 83 abuts elastic thread connection end 31 to stroke of tension terminal, carries out cutting ferrule connection to 30 connection end of elastic thread, then complete
Into the installation of new gun barrel 20, you can restart to carry out above-mentioned set bundle operation.
As shown in Fig. 2 the outer wall of the interior gun barrel 21 is provided with a limited block 70, the inwall of the outer gun barrel 22 is with respect to institute
State the depression of limited block 70 and be provided with a stopper slot 71, the stopper slot 71 is with the cell body extended along 10 length direction of gun body, described
Limited block 70 is connected in the stopper slot 71, therefore, the interior gun barrel 21 can carry out length direction by outer gun barrel 22 relatively
Displacement movement, but keep fixed relative position relation in the axial direction with outer gun barrel 22.
Meanwhile, the mouth of pipe of the looping and binding device is provided with a limited cap 72, and the limited cap 72 is coated at the outer wall of interior gun barrel 21
On, elastic thread ring set is deducted on the outer wall of interior gun barrel 21.Further, the outer gun barrel 22 is straight with the mouth of pipe of interior gun barrel 21
Footpath is all higher than pipe diameter, is provided with a dislocation space, the mistake between the mouth of pipe of the mouth of pipe and interior gun barrel 21 of the outer gun barrel 22
A limited bolt 73 is provided with bit space, the limited bolt 73 passes through the tube wall of outer gun barrel 22 and is connected to the tube wall of interior gun barrel 21.
The limited cap 72 and limited bolt 73 are used to ensure that ring set will not come off from interior gun barrel 21 in the case of untapped.
The present invention provides a kind of automatic tightening elastic thread method to set up and self-tightening type elastic thread looping and binding device of looping and binding device, and which leads to
Crossing adjustable spring 90 and the back stretch for tensing backward being provided for bracing wire automated attachment 80, automatic tension is carried out to elastic thread 30,
Doctor only needs to detain Self-tightened spanner 100, makes Self-tightened spanner 100 unclamp the abutting to adjustable spring 90, you can to make bracing wire automatic
Elastic thread 30 is tensed under the drive of 90 restoring force of adjustable spring by connector 80 backward, so that the ring set of 30 front end of elastic thread
Aperture is contracted to rapidly minimum-value aperture and close to zero, and then the set for realizing more fastening destination organization is pricked, and due to elastic force
Line 30 has good elastic shrinkage, in destination organization gradually necrosis during coming off, the ring set of elastic thread 30 also with
Diminution, until after necrotizing target tissue comes off, the ulcer surface of formation is minimum, so as to reduce the probability of complicated by postoperative bleeding.
The automatic tightening elastic thread method to set up and self-tightening type elastic thread looping and binding device of looping and binding device of the present invention, simple structure, operation side
Just, it is suitable to extensively application.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (15)
1. the automatic tightening elastic thread method to set up in a kind of looping and binding device, the automatic tightening elastic thread method to set up are included along set
The outer wall for pricking the outer gun barrel of device adds at least one elastic thread, and the front end of the elastic thread is formed in the adjustable ring set in aperture is placed on
On the outer wall of gun barrel front end, it is characterised in that the tail end of the elastic thread is connected with the bracing wire automated attachment of looping and binding device, described
The other end of bracing wire automated attachment is connected with a Self-tightened spanner by an adjustable spring, and during pull elastic thread tail end, self-tightening is pulled
Handss unclamp the abutting to adjustable spring, and elastic thread is pulled back under the drive of adjustable spring restoring force by bracing wire automated attachment
Tightly so that the ring set aperture of elastic force line front end reduces rapidly.
2. automatic tightening elastic thread method to set up according to claim 1 in looping and binding device, it is characterised in that looping and binding device is set
Outer gun barrel can relatively interior gun barrel or the relatively outer gun barrel of interior gun barrel be subjected to displacement, make elastic thread come off from gun barrel.
3. automatic tightening elastic thread method to set up according to claim 2 in looping and binding device, it is characterised in that arrange described outer
The internal diameter of gun barrel is engaged with the external diameter of the interior gun barrel, and the relatively interior gun barrel of outer gun barrel or the relatively outer gun barrel of interior gun barrel are subjected to displacement
When, the tube wall of the outer gun barrel is released the body of interior gun barrel by elastic thread.
4. automatic tightening elastic thread method to set up according to claim 1 in looping and binding device, it is characterised in that arrange bracing wire from
Maximum tension length of the retraction stroke of follower link more than elastic thread.
5. a kind of self-tightening type elastic thread looping and binding device, including gun body and gun barrel, the gun barrel include interior gun barrel and outer gun barrel, Yi Jizhi
A few elastic thread, the elastic thread are arranged along the outer wall of the outer gun barrel of looping and binding device, and the front end of the elastic thread forms aperture can
The ring set of tune is placed on the outer wall of interior gun barrel front end, it is characterised in that the tail end of the elastic thread is automatic with the bracing wire of looping and binding device
Connector connects, and the other end of the bracing wire automated attachment is connected with a Self-tightened spanner by an adjustable spring, pull elastic force
During line tail end, Self-tightened spanner unclamps the abutting to adjustable spring, and bracing wire automated attachment is under the drive of adjustable spring restoring force
Elastic thread is tensed backward so that the ring set aperture of elastic force line front end reduces rapidly.
6. self-tightening type elastic thread looping and binding device according to claim 5, it is characterised in that the contraction of the bracing wire automated attachment
Maximum tension length of the stroke more than elastic thread.
7. self-tightening type elastic thread looping and binding device according to claim 5, it is characterised in that the internal diameter of the outer gun barrel is interior with described
The external diameter of gun barrel is engaged, when the relatively interior gun barrel of outer gun barrel or the relatively outer gun barrel of interior gun barrel are subjected to displacement, the pipe of the outer gun barrel
Wall is released the body of interior gun barrel by elastic thread.
8. self-tightening type elastic thread looping and binding device according to claim 5, it is characterised in that the elastic thread hasp is in outer gun barrel
Position arranges an elastic thread bayonet socket, and the elastic thread is connected through the elastic thread bayonet socket with bracing wire automated attachment.
9. self-tightening type elastic thread looping and binding device according to claim 5, it is characterised in that the gun barrel by a ferrule structure with
Gun body connects.
10. self-tightening type elastic thread looping and binding device according to claim 5, it is characterised in that the interior gun barrel is by a dislocation machine
There is the relative displacement with outer gun barrel in structure control, the dislocation mechanism is arranged at gun body rear end, and which includes a reset key and one
Dislocation button,
The reset key and the coaxially connected setting of tail end of the gun body inner tube, are provided between the reset key and gun body and carry
For the transverse elasticity part of back stretch, the reset key is provided with a spacing hole；
The dislocation button is longitudinally through the spacing hole, and is connected with gun body by a longitudinal elastic elements, and the dislocation is pressed
The body of key is provided with the spacing axis body that diameter is engaged with the spacing bore dia；
Wherein, the body diameter with diameter greater than the dislocation button of the spacing hole, when the dislocation button is moved down, limits
There is dislocation with spacing hole in position axis body, be subjected to displacement the relatively outer gun barrel of gun barrel in the gun body inner tube drive.
11. self-tightening type elastic thread looping and binding devices according to claim 5, it is characterised in that the looping and binding device also includes an elastic force
Line automatic tensioning mechanism, the elastic thread automatic tensioning mechanism include,
Bypass the bracing wire automated attachment of elastic thread bayonet socket and the connection of elastic thread tail end；
One end is connected to the gun body, and the other end is connected to the adjustable spring of the bracing wire automated attachment；
Self-tightened spanner of one deduction in the free end of the 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 returned backward by adjustable spring
Bullet, pulls the ring set aperture of elastic force coil front end to reduce rapidly.
12. according to claim 11 self-tightening type elastic thread looping and binding device, it is characterised in that a pulling force row is provided with the gun body
Journey groove, the bracing wire automated attachment are built in the pulling force stroke groove, and its free end longitudinally projects institute to gun body both sides
Pulling force stroke groove is stated, and extends self-tightening key.
13. the self-tightening type elastic thread looping and binding device according to claim 12, it is characterised in that the tail end of the elastic thread is provided with
Elastic thread connection end, the outer wall of the outer gun barrel of the looping and binding device are provided with an elastic thread row being docked and connected with the pulling force stroke groove
Journey groove, the elastic thread connection end are arranged in the elastic force lineal travel groove, and the elastic thread tail end is passed through along outer gun barrel outer wall
The through hole arranged on elastic thread metallic channel is tied up and is enclosed within elastic thread connection end；The bracing wire automated attachment be connected with elastic thread one
End arranges power drawing end, and the power drawing end is connected with elastic thread connection end cutting ferrule.
14. according to claim 13 self-tightening type elastic thread looping and binding device, it is characterised in that the power pulls the contraction row at end
Journey terminal arrange one expand a little, for power drawing end backward post-tensioning to retraction stroke terminal when expand the power and lead
Pull end, makes elastic thread connection end depart from power drawing end.
15. according to claim 14 self-tightening type elastic thread looping and binding device, it is characterised in that the top of the elastic force lineal travel groove
It is longitudinally wide longitudinally wide more than elastic force lineal travel groove cell body with 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 |
| EP17819142.5A EP3476314B1 (en) | 2016-06-28 | 2017-06-21 | Self-tightening elastic line ligator |
| 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 |
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 CN105997180A (en) | 2016-10-12 |
| CN105997180B true CN105997180B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN109674512B (en) * | 2019-01-30 | 2022-01-04 | 程先本 | Automatic rubber ring elastic wire cutting ligation device |
| 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 |
| KR102618019B1 (en) * | 2021-07-09 | 2024-01-02 | (주) 벨류원코리아 | Hemorrhoidal ligation device for hemorrhoids excision |
| CN115462856B (en) * | 2022-09-06 | 2023-04-25 | 南京鼓楼医院 | Left auricle ligator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2704132B1 (en) * | 1993-04-23 | 1995-07-13 | Ethnor | System for ligature and / or suture for endoscopic surgery. |
| CN2747024Y (en) * | 2004-07-10 | 2005-12-21 | 胡立人 | Tension apparatus for wire or cable |
| CN103519860A (en) * | 2013-09-18 | 2014-01-22 | 许瑞云 | Method for setting elastic threads in ligation device and automatic elastic thread ligation device |
| CN103519861B (en) * | 2013-10-12 | 2015-08-05 | 中国人民解放军第二军医大学 | Minimally Invasive Surgery self-locking type half kidney cover band |
| CN105232107B (en) * | 2015-10-28 | 2017-10-27 | 湖南灵康医疗科技有限公司 | The method to set up of elastic thread looping and binding device and elastic thread |
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