CN106725673A - Endoscopic suture device - Google Patents
Endoscopic suture device Download PDFInfo
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- CN106725673A CN106725673A CN201710155834.3A CN201710155834A CN106725673A CN 106725673 A CN106725673 A CN 106725673A CN 201710155834 A CN201710155834 A CN 201710155834A CN 106725673 A CN106725673 A CN 106725673A
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- sewing needle
- drive component
- epitheca
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- ratchet
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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
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
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- Heart & Thoracic Surgery (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention provides a kind of endoscopic suture device, including epitheca, sewing needle, first drive component, second drive component and steel wire, the projection of shape of the epitheca and sewing needle is C-shaped, the medial surface of epitheca is provided with the arc groove being adapted to the sewing needle diameter, arc groove is contacted with the lateral surface of the sewing needle, the medial surface of sewing needle is provided with internal tooth, first drive component, second drive component is fixed on the epitheca, and the end of motion transmission is engaged with the internal tooth on sewing needle, the end of the steel wire is Y-shaped, it is divided into two, and be connected with the first drive component and the second drive component respectively, as first drive component, the dynamical element of the second drive component.First drive component and the second drive component realize that relay drives sewing needle to be rotated to a direction, and guide effect is played in motion of the epitheca to sewing needle, and steel wire linear reciprocating motion drives needle rotation, and rational in infrastructure, sewing needle continuously sutures good operability.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of endoscopic suture device.
Background technology
Endoscopic suture device is sutured for stomach and intestine intra-operative, and when using, endoscopic suture device enters the stomach of human body by scope
In intestines.The Chinese invention patent of Publication No. CN105919636A discloses a kind of rotatable stapler-type endoscopic suture device,
Including sewing needle and clip, the clip includes an open annular sleeve, and sewing needle can be put into sleeve by opening, annular sleeve
The sewing needle baffle plate for opening and closing opening of fixed pedestal and activity is provided with cylinder, baffle plate is connected to by spring
On pedestal, it is additionally provided with drawstring to drive when baffle plate activity, staplers wound or tissue, with tissue clamps by wound both sides skin
It is flipped up, and draws laminating over to one's side, by stitching unstrument perpendicular alignmnet, pulls drawstring, the baffle plate in sleeve to be pulled to open opening, and
Releasing is gripped to sewing needle needle body, and sewing needle is released and organize and revert to circle shape to sew up a wound penetrating,
Simultaneously because the effect of spring, baffle plate motion is returned, and pedestal it is spacing under, stop at its operating position, it is next to carry out
The preparation of pin.The maximum deficiency of this invention is to use metal needle, and non-thread, the circle size of pin and the tissue pricked
It is how many may influence closure fastnesses and closure, it is few to enclose big or contained tissue, then it is tight still to form closure, one
Denier still suffers from fistula mouthful, then all that has been achieved is spoiled, further drawback be when reason mistake is sutured, without special recovery apparatus, it is difficult to reclaim,
Take firmly, aggravate further injury tissue, it is possible to massive haemorrhage etc. occur, do not take, because being metal object, take up room, under the influence of
The suture of one pin, work continuity is poor.
The content of the invention
The technical problems to be solved by the invention are：A kind of suture of offer is easy, fastness is good, controllable, continuous workability
It is good, the endoscopic suture device of simple operation.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of endoscopic suture device, including epitheca, sewing needle, the first drive component, the second drive component and steel wire, it is described outer
The projection of shape of sheath and sewing needle is C-shaped, and the medial surface of the epitheca is provided with recessed with the arc that the sewing needle diameter is adapted to
Groove, the arc groove is contacted with the lateral surface of the sewing needle, and the medial surface of the sewing needle is provided with internal tooth, and described first drives
Dynamic component, the second drive component are fixed on the epitheca, and the end of motion transmission is nibbled with the internal tooth on the sewing needle
Close, the end of the steel wire is Y-shaped, be divided into two, and be connected with the first drive component and the second drive component respectively, as
First drive component, the dynamical element of the second drive component.
The beneficial effects of the present invention are：The sewing needle of C-shaped is arranged concentrically with the epitheca of C-shaped, the outside of sewing needle with it is outer
The arc groove contact of sheath, the inner side of sewing needle connects with the end of the motion transmission of the first drive component and the second drive component
Connect, guide effect is played in motion of the arc groove on epitheca to sewing needle, the first drive component and the second drive component with
The internal tooth engagement of sewing needle, drives sewing needle to be driven around sewing needle and the axis rotation of epitheca, and the first drive component and second
Component drives sewing needle to be rotated to same direction；Epitheca and sewing needle are C-shaped, then during needle rotation with epitheca it
Between have opening, it is possible to achieve the suture of sewing needle action, the rotation of the first drive component and the second drive component to sewing needle
Play a part of relay；Steel wire end branch is connected with the first drive component and the second drive component respectively into two ends, steel
Silk does reciprocating linear motion, and drives the first drive component and the second drive component to do intermittent exercise, the first drive component and the
The linear reciprocating motion of steel wire is converted to two drive components the rotary motion engaged with sewing needle, and the sewing needle of C-shaped is to same
Individual azimuthal rotational motion, realizes constantly continuous suture stomach and intestine wound, rational in infrastructure, simple operation, and the operation of suture is continuous
Property is good.
Brief description of the drawings
Fig. 1 is the structural representation of the internal diameter stitching unstrument of the embodiment of the present invention；
Fig. 2 is the structural representation of the sewing needle of the embodiment of the present invention；
The sectional drawing that Fig. 3 coordinates for the sewing needle of the embodiment of the present invention with epitheca；
Fig. 4 is the structural representation of the thimble on the sewing needle of the embodiment of the present invention
The structural representation that Fig. 5 is connected for the steel wire of the embodiment of the present invention with steel wire expansion bend；
Fig. 6 is sleeve pipe, metal hose, the cross-section cutaway view of endoscope three end of the embodiment of the present invention；
Fig. 7 is the left view of structure in Fig. 6 of the embodiment of the present invention；
Fig. 8 is the right view of structure in Fig. 6 of the embodiment of the present invention.
Label declaration：
1st, epitheca；2nd, sewing needle；3rd, the first drive component；4th, the second drive component；5th, steel wire；
6th, sleeve；7th, steel wire expansion bend；8th, suture；9th, endoscope；
11st, arc groove；
21st, internal tooth；22nd, thimble；
31st, first gear；32nd, the first ratchet；33rd, the first swing rod；34th, the first active ratchet；
35th, the first check pawl；36th, the first spring；
41st, second gear；42nd, the second ratchet；43rd, the second swing rod；44th, the second active ratchet；
45th, the second check pawl；46th, second spring；
61st, through hole；62nd, groove；
71st, handle sliding part；72nd, handle fixed part；73rd, metal hose；
91st, endoscope hole；92nd, biopsy forceps hole.
Specific embodiment
It is to describe technology contents of the invention, the objects and the effects in detail, below in conjunction with implementation method and coordinates attached
Figure is explained.
The design of most critical of the present invention is：Driven by the first drive component on different circumferential positions and second
Component realizes that relay drives the needle rotation of C-shaped, and first drive component and second that reciprocates through of steel wire is driven
Component transform is the rotation in the same direction of sewing needle, and guide effect is played in the rotation by epitheca to sewing needle, realizes seam
Close the suture action of pin, simple operation, and continuous Workable.
Fig. 1 to Fig. 8 is refer to, is driven the invention provides a kind of endoscopic suture device, including epitheca 1, sewing needle 2, first
The projection of shape of component 3, the second drive component 4 and steel wire 5, the epitheca 1 and sewing needle 2 is C-shaped, the epitheca 1 it is interior
Side is provided with the arc groove 11 being adapted to the diameter of the sewing needle 2, the lateral surface of the arc groove 11 and the sewing needle 2
Contact, the medial surface of the sewing needle 2 is provided with internal tooth 21, and first drive component 3, the second drive component 4 are fixed on described
On epitheca 1, and the end of motion transmission is engaged with the internal tooth 21 on the sewing needle 2, and the end of the steel wire 5 is Y-shaped,
It is divided into two, and is connected with the first drive component 3 and the second drive component 4 respectively, as first drive component 3, second
The dynamical element of drive component 4.
Further, Fig. 1 is refer to, first drive component 3 includes first gear 31, and the first gear 31 is located at
The end of the motion of the first drive component 3 transmission, second drive component 4 includes second gear 41, the second gear
41 ends for being located at second drive component 4 motion transmission, the first gear 31, second gear 41 are respectively positioned on the epitheca
1 inner side, and engaged with the internal tooth 21 of the sewing needle 2, the line at the center of the first gear 31 and second gear 41
Positioned at one of the epitheca 1 diametrically.
Seen from the above description, first gear 31 is engaged with the internal tooth 21 of sewing needle 2, second gear 41 and sewing needle 2
Internal tooth 21 is engaged, and first gear 31 and second gear 41 can drive sewing needle 2 to rotate, rational in infrastructure；First gear 31 and
The line at the center of two gears 41 is located at one of epitheca 1 diametrically, and first gear 31 and second gear 41 realize that relay drives
The rotary motion of sewing needle 2.
Further, Fig. 1 is refer to, first drive component 3 also includes the first ratchet 32, the first swing rod 33, first
Active ratchet 34, the first check pawl 35 and the first spring 36, first ratchet 32 and the coaxial linkage of the first gear 31
Set, the end branch of the steel wire 5 there are two ends, an end of described one end of first swing rod 33 and the end of the steel wire 5
Connection, the other end is connected with the center rotating of first ratchet 32, described one end of first active ratchet 34 and first spine
Wheel 32 is engaged, and the other end is rotated with the middle part of first swing rod 33 and is connected, and first check pawl 35 is by first bullet
Spring 36 compresses screens in a teeth groove of first ratchet 32.
Seen from the above description, there are two ends in the end branch of steel wire 5, then during the linear reciprocating motion of steel wire 5, its
The end of end one drives the first swing rod 33 to rotate, and the first swing rod 33 rotates counterclockwise drive the first active ratchet 34 and promotes first
Ratchet 32 is rotated counterclockwise, and the first ratchet 32 rotates counterclockwise the drive synchronous axial system of first gear 31, and the first swing rod 33 is clockwise
The surface for driving the first active ratchet 34 to slip over the first ratchet 32 is rotated, while work of first ratchet 32 in the first check pawl 35
Do not rotated under, during realizing the linear reciprocating motion of steel wire 5, the first ratchet 32 and first gear 31 are along counterclockwise
The intermittent rotation in direction.
Further, Fig. 1 is refer to, second drive component 4 also includes the second ratchet 42, the second swing rod 43, second
Active ratchet 44, the second check pawl 45 and second spring 46, second ratchet 42 and the coaxial linkage of the second gear 41
Set, described one end of second swing rod 43 is connected with another end of the end of the steel wire 5, the other end and second ratchet 42
Center rotating connection, described one end of second active ratchet 44 engages with second ratchet 42, the other end and the described second pendulum
The middle part of bar 43 rotates connection, and second check pawl 45 compresses screens in second ratchet 42 by the second spring 46
A teeth groove in.
Seen from the above description, there are two ends in the end branch of steel wire 5, then during the linear reciprocating motion of steel wire 5, its
Another end of end drives the second swing rod 43 to rotate, and the second swing rod 43 rotates counterclockwise drive the second active ratchet 44 and promotes the
Two ratchets 42 are rotated counterclockwise, and the second ratchet 42 rotates counterclockwise the drive synchronous axial system of second gear 41, the up time of the second swing rod 43
Pin rotates the surface for driving the second active ratchet 44 to slip over the second ratchet 42, while the second ratchet 42 is in the second check pawl 45
Do not rotated under effect, during realizing the linear reciprocating motion of steel wire 5, the second ratchet 42 and second gear 41 are along the inverse time
The intermittent rotation in pin direction.
Preferably, first gear 31 is identical with the external diameter of second gear 41, the external diameter of the first ratchet 32 and the second ratchet 42
Identical, the ratchet of the first ratchet 32 and the second ratchet 42 is towards identical, the court of the first check pawl 35 and the second check pawl 45
To identical, make the rotation linear velocity of the second gear 41 in the drive component 4 of first gear 31 and second in the first drive component 3
It is identical, make the motion ratio of sewing needle 2 more steady.
Further, Fig. 5 to Fig. 8 is refer to, also including sleeve 6 and metal hose 73, the external diameter and peripheral hardware of the sleeve 6
Endoscope 9 diameter adaptation, the sleeve 6 be arranged on the endoscope 9 end, the epitheca 1 be arranged on the sleeve 6
Endoporus in, the epitheca 1 is set parallel to a vertical section of the sleeve 6, and the opening of the epitheca 1 is towards the sleeve
6 outside, the sleeve 6 is provided with through hole 61 in the side of the vertical section perpendicular to the epitheca 1, and the steel wire 5 wears described
In through hole 61, the steel wire 5 is worn in the metal hose 73, and the metal hose 73 is arranged side by side with the endoscope 9 of peripheral hardware.
Seen from the above description, endoscope hole 91 and biopsy forceps hole 92 are provided with endoscope 9, endoscope hole 91 is by stomach and intestine
Situation reach human external and observed, biopsy forceps is arranged in biopsy forceps hole 92, and for clamping tissue, sleeve 6 is pacified
Mounted in the end of endoscope 9, epitheca 1 is arranged in the endoporus of sleeve 6, sewing needle 2 is coordinated with endoscope hole 91 and biopsy forceps,
Tissue is sutured at the position of sleeve 6, it is rational in infrastructure, the structure of original endoscope 9 is not changed；Steel wire 5 is located in
In metal hose 73, metal hose 73 is arranged side by side with endoscope 9, and the structure of endoscope 9 is not changed yet；Epitheca 1 is in sleeve pipe
Portion, prevents epitheca 1 from scratching tissue；Epitheca 1 is set parallel to a vertical section of the sleeve 6, and is open towards sleeve 6
Outside, the least significant end in stitching unstrument when suturing sewing needle 2 is easy to sewing needle 2 to suture tissue, and make epitheca 1 to endoscope
The influence in hole 91 and biopsy forceps hole 92 is small, and observation and the use of biopsy forceps are not influenceed；The steel wire 5 is from where epitheca 1
Passed in the through hole 61 of plane, then steel wire 5 is located in the middle of first gear 31 and second gear 41, is made to first gear 31 and second
The uniform force of gear 41, and can prevent steel wire 5 from being wound with first gear 31 and second gear 41.
Further, the sleeve 6 is provided with a groove 62 on the face relative with the through hole 61, the groove 62 with
The outer face connection of the sleeve 6, the depth of the groove 62 is adapted to the height of the epitheca 1.
Seen from the above description, sleeve 6 is perpendicular to the place plane of epitheca 1, and the position relative with through hole 61 is provided with recessed
Groove 62, the groove 62 is the space for avoiding tissue, when in use, it is necessary to the tissue of suture can be embedded in groove
In 62, it is easy to sewing needle 2 to penetrate tissue.
Further, the groove 62 be shaped as it is parabola shaped, it is rational in infrastructure, it is to avoid scratch tissue.
Further, the arc length of the epitheca 1 of C-shaped is 2/3 circular arc, and the circular arc of the sewing needle 2 of C-shaped is long
Spend the circular arc for 2/3.
Seen from the above description, the arc length of the epitheca 1 of C-shaped is 2/3 circular arc, the sewing needle 2 of C-shaped
Arc length is 2/3 circular arc, motion of the epitheca 1 to sewing needle 2 is played effective guide effect, and stabilized structure reliability；
Preferably, the first gear 31 and second gear 41 are located at two ports of the epitheca 1 respectively, and in first gear 31
The line at the heart and the center of second gear 41 is located at the epitheca 1 diametrically, then first gear 31 and second gear 41 are used as tool
There is effective relay power source of the sewing needle 2 of 2/3 circular arc.
Further, Fig. 3 is refer to, the arc length of the arc groove 11 on the epitheca 1 is 1/3 sewing needle 2
Girth.
Seen from the above description, the arc length of the arc groove 11 on epitheca 1 is the girth of 1/3 sewing needle 2, arc
Effective guide effect is played in the lateral surface CONTACT WITH FRICTION of groove 11 and sewing needle 2, the rotation to sewing needle 2.
Further, Fig. 2 and Fig. 4 is refer to, the middle part of the sewing needle 2 is provided with thimble 22, the thimble 22
On the left surface or right flank of the internal tooth 21 on relatively described sewing needle 2.
Seen from the above description, the inner side of sewing needle 2 is provided with internal tooth 21, and outside contacts with arc groove 11, in sewing needle 2
Left surface or right flank during in face of internal tooth 21 are provided with thimble 22, make thimble 22 will not encounter the first drive component 3,
Second drive component 4 and epitheca 1, thimble 22 are used for wearing suture 8, sewing needle 2 is had band line function.
Further, one end of the sewing needle 2 is tip, and the profile of the thimble 22 is half water-drop-shaped, described
The tip of thimble 22 is towards the tip of the sewing needle 2.
Seen from the above description, thimble 22 is half water-drop-shaped, smooth-shaped, it is to avoid scratch tissue, thimble 22
It is easy to thimble 22 to pass tissue by the hole of sewing needle 2 towards the tip of sewing needle 2 in tip.
Further, also including steel wire expansion bend 7, the steel wire expansion bend 7 includes that handle sliding part 71 and handle are fixed
Portion 72, the handle sliding part 71 is slidably connected with the handle fixed part 72, the head end of the metal hose 73 and the hand
Handle fixed part 72 is connected, and the head end of the steel wire 5 is connected with the handle sliding part 71.
Seen from the above description, when handle sliding part 71 is slided relative to handle fixed part 72, drive steel wire 5 soft in metal
Stretching motion, rational in infrastructure, simple operation are done in pipe 73.
Fig. 1 to Fig. 4 is refer to, embodiments of the invention one are：
A kind of endoscopic suture device, including epitheca 1, sewing needle 2, the first drive component 3, the second drive component 4 and steel wire 5,
The projection of shape of the epitheca 1 and sewing needle 2 is C-shaped, and the medial surface of the epitheca 1 is provided with suitable with the diameter of the sewing needle 2
The arc groove 11 matched somebody with somebody, the arc groove 11 is contacted with the lateral surface of the sewing needle 2, and the medial surface of the sewing needle 2 sets
There is internal tooth 21, first drive component 3, the second drive component 4 are fixed on the epitheca 1, and the end of motion transmission is equal
Engaged with the internal tooth 21 on the sewing needle 2, the end of the steel wire 5 is Y-shaped, be divided into two, and driven with first respectively
The drive component 4 of component 3 and second is connected, used as first drive component 3, the dynamical element of the second drive component 4, the seam
The upper middle side part or lower middle side part for closing pin 2 are provided with thimble 22, and thimble 22 is used to wear the suture 8 of peripheral hardware.
Fig. 1 is refer to, embodiments of the invention two are：
A kind of endoscopic suture device, on the basis of embodiment one, first drive component 3 includes first gear 31, the
One ratchet 32, the first swing rod 33, the first active ratchet 34, the first check pawl 35 and the first spring 36, second driving group
Part 4 includes second gear 41, the second ratchet 42, the second swing set, the second active ratchet 44, the second check pawl 45 and second spring
46, the first gear 31, second gear 41 respectively positioned at the epitheca 1 two ports, and with the sewing needle 2
Internal tooth 21 is engaged, and first ratchet 32 is set with the coaxial linkage of the first gear 31, and the end branch of the steel wire 5 has two
End, described one end of first swing rod 33 is connected with an end of the end of the steel wire 5, the other end and first ratchet 32
Center rotating is connected, and described one end of first active ratchet 34 engages with first ratchet 32, the other end and first swing rod
33 middle part rotates connection, and first check pawl 35 compresses screens in first ratchet 32 by first spring 36
In one teeth groove；Second ratchet 42 and the setting of the coaxial linkage of the second gear 41, described one end of second swing rod 43 and institute
Another end connection of the end of steel wire 5 is stated, the other end is connected with the center rotating of second ratchet 42, and described second actively
The one end of ratchet 44 is engaged with second ratchet 42, and the other end is rotated with the middle part of second swing rod 43 and is connected, and described second
Check pawl 45 compresses screens in a teeth groove of second ratchet 42 by the second spring 46, the first gear 31
Be located at the epitheca 1 with the line at the center of second gear 41 one is diametrically.In order that first gear 31 and second gear
41 rotation direction is identical, makes the position relationship of the first active ratchet 34 and the first swing rod 33, and the second active ratchet 44 and
The position relationship of two swing rods 43 is conversely, for example make the first active ratchet 34 be located at the right side of the first swing rod 33, the second active ratchet
44 left sides for being located at the second swing rod 43, as shown in Figure 1, then during steel wire 5 is flexible, wherein one when steel wire 5 is pulled down
Individual gear is rotated under the drive of active ratchet, and another gear is rotated under the drive of active ratchet when steel wire 5 is flexible upwards,
Also the continuity that sewing needle 2 is rotated is realized.
Fig. 5 to Fig. 8 is refer to, embodiments of the invention three are：
A kind of endoscopic suture device, on the basis of embodiment one or two, also including sleeve 6 and metal hose 73, the set
The external diameter of cylinder 6 is adapted to the diameter of the endoscope 9 of peripheral hardware, and the sleeve 6 is arranged on the end of the endoscope 9, the epitheca 1
In the endoporus of the sleeve 6, the epitheca 1 is set parallel to a vertical section of the sleeve 6, the epitheca 1
Towards the outside of the sleeve 6, the sleeve 6 is provided with through hole 61, institute in the side of the vertical section perpendicular to the epitheca 1 for opening
State during steel wire 5 wears the through hole 61, the steel wire 5 is worn in the metal hose 73, the metal hose 73 and peripheral hardware
Endoscope 9 is arranged side by side.The sleeve 6 is provided with a groove 62 on the face relative with the through hole 61, the groove 62 with
The outer face connection of the sleeve 6, the depth of the groove 62 is adapted to the height of the epitheca 1.The shape of the groove 62
For parabola shaped.
Fig. 1 to Fig. 3 is refer to, embodiments of the invention four are：
A kind of endoscopic suture device, on the basis of embodiment one, the arc length of the epitheca 1 of C-shaped is 2/3 circle
Arc, the arc length of the sewing needle 2 of C-shaped is 2/3 circular arc, and the arc length of the arc groove 11 on the epitheca 1 is
The girth of 1/3 sewing needle 2.
Fig. 5 is refer to, embodiments of the invention five are：
A kind of endoscopic suture device, on the basis of embodiment three, also including steel wire expansion bend 7, the steel wire expansion bend 7 is wrapped
Handle sliding part 71 and handle fixed part 72 are included, the handle sliding part 71 is slidably connected with the handle fixed part 72, described
The head end of metal hose 73 is connected with the handle fixed part 72, and the head end of the steel wire 5 is connected with the handle sliding part 71.
Fig. 1 to Fig. 8 is refer to, when using, first suture 8 is through in the thimble 22 of sewing needle 2, and from sleeve 6
Through hole 61 pass, sewing needle 2 is turned to and engaged with second gear 41, but the position do not engaged with first gear 31, makes suture
There is certain gap between the tip of pin 2 and epitheca 1, the wound sutured the need for stomach and intestine is placed in first gear 31 and epitheca 1
Gap in, biopsy forceps stretches out from the biopsy forceps hole 92 of endoscope 9, clamps the wound of gastrointestinal wall, and a wound part is embedded in
In the groove 62 of sleeve 6, sewing needle 2 is aligned needs the wound of suture, reciprocal to pull steel wire 5, by second gear 41
Intermittent movement counterclockwise drives sewing needle 2 to be rotated to first gear 31, when sewing needle 2 simultaneously with first gear 31 and second gear
41 engagements, sewing needle 2 is rotated counterclockwise under the intermittent rotary counterclockwise of first gear 31 and second gear 41, when sewing needle 2
Only when being engaged with first gear 31, sewing needle 2 is rotated counterclockwise under the intermittent rotary of first gear 31, when sewing needle 2 again
When being engaged with first gear 31 and second simultaneously, sewing needle 2 is in first gear 31 and the intermittent rotary counterclockwise of second gear 41
Under rotate counterclockwise, when sewing needle 2 is only engaged with second gear 41, under the drive of second gear 41 interval counterclockwise turn
Dynamic, when certain interval is reached between sewing needle 2 and epitheca 1, sewing needle 2 is aligned needs next wound of suture, starts
The suture of next pin.
In sum, the endoscopic suture device that the present invention is provided, is driven with the first gear 31 and second of the first drive component 3
The relay of second gear 41 of component 4 drives sewing needle 2 to rotate counterclockwise, and the first swing rod 33, the first ratchet 32, first are led
Between the linear reciprocating motion of steel wire 5 is converted to first gear 31 by pawl 34, the first check pawl 35 and the first spring 36
Have a rest rotation, the second swing rod 43, the second ratchet 42, the second active ratchet 44, the second check pawl 45 and second spring 46 are by steel wire 5
Linear reciprocating motion be converted to the intermittent rotary of second gear 41, first gear 31 and the wheel flow rotation of second gear 41 so that
Sewing needle 2 is set persistently to rotate, the medial surface of epitheca 1 is provided with arc groove 11, and guide effect is played in the rotation to sewing needle 2, seam
The upside or downside for closing pin 2 are provided with thimble 22, facilitate threading cabling, sleeve 6 to be located at the end of endoscope 9, metal hose
73 are arranged side by side with endoscope 9, endoscope hole 91 in the sewing needle 2 in sleeve 6 and endoscope 9 and in biopsy forceps hole 92
Biopsy forceps coordinate and realize suture to wound on gastrointestinal wall, rational in infrastructure, simple operation, the cabling continuity of sewing needle 2 is good,
Controllability is good, high working efficiency, and sewing effect is good.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In scope of patent protection of the invention.
Claims (10)
1. a kind of endoscopic suture device, it is characterised in that including epitheca, sewing needle, the first drive component, the second drive component and steel
The projection of shape of silk, the epitheca and sewing needle is C-shaped, and the medial surface of the epitheca is provided with and is adapted to the sewing needle diameter
Arc groove, the arc groove contacts with the lateral surface of the sewing needle, and the medial surface of the sewing needle is provided with internal tooth, institute
State the first drive component, the second drive component to be fixed on the epitheca, and engaged with the internal tooth on the sewing needle, it is described
The end of steel wire is Y-shaped, is divided into two, and is connected with the first drive component and the second drive component respectively, used as described the
The dynamical element of one drive component, the second drive component.
2. endoscopic suture device according to claim 1, it is characterised in that first drive component includes first gear,
The first gear is located at the end of first drive component motion transmission, and second drive component includes second gear,
The second gear is located at the end of second drive component motion transmission, and the first gear, second gear are respectively positioned on institute
State the inner side of epitheca, and internal tooth with the sewing needle is engaged, the line position at the center of the first gear and second gear
In one of the epitheca diametrically.
3. endoscopic suture device according to claim 2, it is characterised in that first drive component also includes the first spine
Wheel, the first swing rod, the first active ratchet, the first check pawl and the first spring, first ratchet are same with the first gear
Axle linkage is set, and there are two ends in the steel wire end branch, and described first swing rod one end is held with one of the steel wire end
Portion connects, and the other end is connected with the center rotating of first ratchet, described first active ratchet one end and first ratchet
Engagement, the other end is rotated with the middle part of first swing rod and is connected, and first check pawl is by the first spring compression card
Position is in a teeth groove of first ratchet；
Second drive component also includes the second ratchet, the second swing rod, the second active ratchet, the second check pawl and the second bullet
Spring, second ratchet is set with the second gear coaxial linkage, and described second swing rod one end is another with the steel wire end
One end connection, the other end is connected with the center rotating of second ratchet, described second active ratchet one end and described the
Two ratchets are engaged, and the other end is rotated with the middle part of second swing rod and is connected, and second check pawl is by the second spring
Compression screens is in a teeth groove of second ratchet.
4. endoscopic suture device according to claim 1, it is characterised in that also including sleeve and metal hose, the sleeve
External diameter be adapted to the diameter of the endoscope of peripheral hardware, the sleeve is arranged on the end of the endoscope, and the epitheca is arranged on
In the endoporus of the sleeve, the epitheca is set parallel to a vertical section of the sleeve, and the opening of the epitheca is towards institute
The outside of sleeve is stated, the sleeve is provided with through hole in the side of the vertical section perpendicular to the epitheca, and the steel wire wears described
In through hole, the steel wire is worn in the metal hose, and the metal hose is arranged side by side with the endoscope of peripheral hardware.
5. endoscopic suture device according to claim 4, it is characterised in that the sleeve is on the face relative with the through hole
A groove is provided with, the groove is connected with the outer face of the sleeve, the depth of the groove is fitted with the height of the epitheca
Match somebody with somebody.
6. endoscopic suture device according to claim 1, it is characterised in that the arc length of the epitheca of C-shaped is 2/3
Circular arc, the arc length of the sewing needle of C-shaped is 2/3 circular arc.
7. endoscopic suture device according to claim 1, it is characterised in that the arc length of the arc groove on the epitheca
It is the girth of 1/3 sewing needle.
8. endoscopic suture device according to claim 1, it is characterised in that be provided with thimble in the middle part of the sewing needle,
The thimble is located on the left surface of the internal tooth on relatively described sewing needle or right flank.
9. endoscopic suture device according to claim 8, it is characterised in that one end of the sewing needle is tip, described to wear
The profile of wire loop is half water-drop-shaped, and the tip of the thimble is towards the tip of the sewing needle.
10. endoscopic suture device according to claim 4, it is characterised in that also including steel wire expansion bend, the steel wire stretches
Device includes handle sliding part and handle fixed part, and the handle sliding part is slidably connected with the handle fixed part, the metal
The head end of flexible pipe is connected with the handle fixed part, and the head end of the steel wire is connected with the handle sliding part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710155834.3A CN106725673B (en) | 2017-03-16 | 2017-03-16 | Endoscope stitching instrument |
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|---|---|---|---|
| CN201710155834.3A CN106725673B (en) | 2017-03-16 | 2017-03-16 | Endoscope stitching instrument |
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| CN106725673A true CN106725673A (en) | 2017-05-31 |
| CN106725673B CN106725673B (en) | 2023-02-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371549A (en) * | 2018-04-17 | 2018-08-07 | 杨东 | A kind of suture instruments for make skin graft region and operative incision surface of a wound region |
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| CN1839764A (en) * | 2005-03-31 | 2006-10-04 | 伊西康内外科公司 | Suturing device |
| US20060282093A1 (en) * | 2005-06-13 | 2006-12-14 | Shelton Frederick E Iv | Surgical suturing apparatus with anti-backup system |
| CN200942094Y (en) * | 2006-02-07 | 2007-09-05 | 上海市第一人民医院 | Full automatic suture device for surgical operation |
| JP2009213763A (en) * | 2008-03-12 | 2009-09-24 | Masataka Funada | Medical instrument |
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|---|---|
| CN106725673B (en) | 2023-02-14 |
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