CN206473393U - A kind of scope tissue dissection device - Google Patents
A kind of scope tissue dissection device Download PDFInfo
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- CN206473393U CN206473393U CN201621073370.9U CN201621073370U CN206473393U CN 206473393 U CN206473393 U CN 206473393U CN 201621073370 U CN201621073370 U CN 201621073370U CN 206473393 U CN206473393 U CN 206473393U
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Abstract
The utility model provides a kind of scope tissue dissection device, including：Cutting part, the cutting part includes chopping, the conductive mechanism being electrically connected with the chopping；Manipulation portion, the manipulation portion is arranged on the chopping near-end to control the chopping to rotate and retreat；Housing, the near-end of the housing is snapped in the distal end in the manipulation portion, and be provided with the housing at least two cavitys with respectively for the chopping by with dispose the conductive mechanism；The scope tissue dissection device also includes the limiting mechanism for being used to limit chopping rotating cycle.Using the utility model, the maximum rotating cycle of chopping can be caused to be restricted, it is to avoid because chopping is broken caused by excessive rotation.
Description
Technical field
The utility model is related to medical instruments field, the insertion type tissue dissection dress of particularly a kind of endoscope treatment
Put.
Background technology
Duodenum endoscopic papillosphincterotomy (hereinafter referred to as EST) is in endoscopic retrograde courage pancreatic ductography
Further grow up on the basis of the therapeutic technique of art (hereinafter referred to as ERCP), be under scope utilize high-frequency electrical incision knife
A kind for the treatment of technology that duodenofiberscope sphincter and choledochus end section are cut.EST is a weight in scope field
The treatment technology wanted, is also the premise of other therapeutic endoscopies.Such as, calculus of bile duct take out, stenosis of bile duct expansion, in biliary tract rack
Drainage, tumor of bile duct biopsy and radioactive source insert the Clinics such as interior irradiation, need first to carry out EST mostly, then could complete
All therapeutic endoscopy.EST has the advantages that operation wound is small, post-operative recovery is fast, success rate is high, also therefore, EST application by
It is gradually extensive.
High frequency incision knife be EST operation in necessary apparatus, existing high frequency incision knife include cone point, multi-lumen tube,
Chopping, high-frequency electrode plug, guidewire lumen entrance, handle, sophisticated coating；High-frequency electrode plug loads hand in the way of mechanical snap
In handle, multi-lumen tube near-end is connected with handle using the method being molded online；Chopping tail end is connected with high-frequency electrode plug；Seal wire
Chamber entrance is located at multi-lumen tube near-end.The direction of chopping is controlled by rotary handle, in order to the cutting in ESS
Angle adjustment.In order to take into account manipulation intensity and split requirement, chopping main body is large-diameter portion, is received in the cutting part with organizing to contact
Hold together for minor diameter part.
It is unavoidable in endoscopic procedures to need to adjust cutting angle by rotating chopping, and the excessive rotation of chopping
It can be caused to be broken, especially large-diameter portion can bear that torsion is different with minor diameter part, the joint portion between large-diameter portion and minor diameter part
Easily it is broken, so as to cause the damage of chopping.
Utility model content
The utility model is made in view of the foregoing, it is therefore intended that provide a kind of reasonable in design, simple and stable,
The scope tissue dissection device that can effectively prevent chopping to be broken because excessively rotating.
To reach above-mentioned purpose, the utility model provides a kind of scope tissue dissection device, and it includes：
Cutting part, the cutting part includes chopping, the conductive mechanism being electrically connected with the chopping；
Manipulation portion, the manipulation portion is arranged on the chopping near-end to control the chopping to rotate and retreat；
Housing, the near-end of the housing is snapped in the distal end in the manipulation portion, and at least two are provided with the housing
Individual cavity with respectively for the chopping by with dispose the conductive mechanism；
Characterized in that, the scope tissue dissection device also includes the limitation machine for being used to limit chopping rotating cycle
Structure, the limiting mechanism includes：
Rigid body, the rigid body is located at the near-end periphery of the chopping and coaxial with the chopping；
First limiting mechanism, first limiting mechanism is arranged on the rigid body periphery and week is realized between the rigid body
To fixation；
Second limiting mechanism, second limiting mechanism matches to limit described first with first limiting mechanism
The rotating cycle of limiting mechanism.
Preferably, the limiting mechanism also includes stop mechanism, and the stop mechanism is arranged on first limiting mechanism
Or stroke range of the two ends of second limiting mechanism for controlling first limiting mechanism.
Preferably, there is the passage matched with the rigid body shape so that first limit in first limiting mechanism
Structure processed can sliding axially along the rigid body.
Preferably, first limiting mechanism is fixedly connected with the rigid body.
Preferably, the limiting mechanism also includes sliding support, and the sliding support is located at the enclosure interior and energy edge
The chopping is slid axially, and second limiting mechanism is fixedly installed on the sliding support, and the sliding support is along institute
Stating has perforate in the axial direction of the first limiting mechanism, the first limiting mechanism configuration is in the perforate.
Preferably, first limiting mechanism is external screw thread element, and second limiting mechanism is and external screw thread member
The inner screw member that part matches.
Preferably, first limiting mechanism is gear, and second limiting mechanism includes the rack being engaged with gear.
Preferably, the manipulation portion includes controlling the circumferential controlling organization of the chopping rotation and controls the chopping to retreat
Axial controlling organization, the chopping is fixedly connected with the axial controlling organization, and the axial controlling organization is slidably arranged in
On the circumferential controlling organization, and the axial controlling organization is circumferentially locked with the circumferential controlling organization, so that the chopping
Rotated under the circumferential controlling organization driving.
Preferably, the rigid body is guide pipe, and it is arranged in the housing.
Preferably, the conductive mechanism includes electrode plug and the copper sheathing being engaged with the electrode plug, the copper sheathing
It is sheathed on outside the rigid body so that the rigid body is passed through.
Preferably, in the chopping, the far-end close to second limiting mechanism is arranged with spring, the spring it is remote
End is provided with quoit, is electrically connected between the spring, chopping and the quoit.
Preferably, section of the rigid body along chopping radial direction is non-circular shape.
Preferably, the circumferential controlling organization is rotary handle, and the axial controlling organization is sliding handle.
Using the utility model, due to being provided with rigid body, the intensity of chopping can be strengthened, it is ensured that surgical effect；Secondly,
The limiting mechanism of chopping rotating cycle can be limited due to being provided with so that the maximum rotating cycle of chopping is restricted, it is to avoid
Because chopping is broken caused by excessive rotation, and by setting stop mechanism further to control in limiting mechanism both sides
The rotation of chopping processed；Manipulation portion and conductive mechanism are simplified in the utility model, the stability of device can be further improved.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model embodiment one；
Fig. 2 is the structural representation of the cutting pole of the cutting part of the utility model embodiment one；
Fig. 3 is the structural representation of the multi-lumen tube of the utility model embodiment one；
Fig. 4 is the structural representation of the limiting mechanism of the utility model embodiment one；
Fig. 5 (a), 5 (b), 5 (c) are the shape of cross section in the maximum diameter portion of the guide pipe of the utility model embodiment one
Schematic diagram；
Fig. 6 is a kind of sectional view of variation of limiting mechanism of the utility model embodiment one；
Fig. 7 is the sectional view of the utility model embodiment two；
Fig. 8 is the sectional view of the limiting mechanism of the utility model embodiment two；
Fig. 9 is the phantom of the utility model embodiment three；
Figure 10 is the transversal schematic cross-section of the line A-A by the limiting mechanism of the present embodiment three along Fig. 9；
Figure 11 is the phantom of the utility model example IV；
Figure 12 is the sectional view of the limiting mechanism of the utility model example IV.
Label declaration：Conductive mechanism 11, electrode plug 111, copper sheathing 112, spring 113, quoit 114, chopping 12, big footpath
Portion 121, minor diameter part 122, multi-lumen tube 13, the second chopping chamber 131, the second guidewire lumen 132, the second injecting cavity 133, cutting pole 14,
Manipulation portion 20, circumferential controlling organization 21, axial controlling organization 22, housing (30,30 '), the first cavity 31, the second cavity 32, the
Three cavitys 33, the 4th cavity 34, female Luer 35, shell 36, the first limiting mechanism (41,41 ', 41 ", 41 " '), the second limitation
Mechanism (42,42 ', 42 ", 42 " '), catch (43,62), sliding support 44, perforate 45, rigid body 50, insulating sleeve 51.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with the accompanying drawings, but the utility model content not office
It is limited to these embodiments.
Embodiment one
As shown in Figure 1, Figure 2 and Figure 3, incision device of the present utility model includes cutting part, manipulation portion 20, housing 30；
Cutting part includes chopping 12 and the conductive mechanism 11 being electrically connected with chopping 12；
Manipulation portion 20 is arranged on rotation and advance and retreat of the near-end of chopping 12 to control chopping；
Housing 30, the near-end of housing 30, which is snapped in the distal end in manipulation portion 20, and housing 30, is provided with least two chambers
Body with respectively for chopping 12 by with placement conductive mechanism 11；
Wherein, it is of the present utility model to cut the limiting mechanism that device also includes being used to limit chopping rotating cycle, limit machine
Structure includes：Rigid body 50, the first limiting mechanism 41, the second limiting mechanism 42.
In the utility model, near-end refers under use state, close to one end of operator, i.e. one end close to manipulation portion；Far
End refers to one end away from operator.
In the utility model, chopping is made by electrically conductive material, such as metal etc.；Conductive mechanism 11 includes electrode plug
111 and the copper sheathing 112 that is engaged with electrode plug 111, the one end of electrode plug 111 is connected with external high frequency power supply, the other end with
Copper sheathing 112 and chopping 12 are in conductive connection status.Copper sheathing 112 is sheathed on outside rigid body 50, and rigid body 50 can pass through copper
Set 112.Preferably, the rigid body 50 in the utility model is cylinder, such as with rigid metal guide pipe.
Further, manipulation portion 20 includes the circumferential controlling organization 21 that control chopping 12 rotates and the axial direction for controlling chopping to retreat
Controlling organization 22, chopping 12 is fixedly connected with axial controlling organization 22, and axial controlling organization 22 is slidably arranged in circumferential control machine
On structure 21, and axial controlling organization 22 and the circumferential locking of circumferential controlling organization 21, so that chopping can be in circumferential control machine
Rotated under the driving of structure 21.Preferably, in the utility model, circumferential controlling organization 21 is rotary handle, axial controlling organization 22
For sliding handle, sliding handle is slideably set on axially hollow rotary handle, and is circumferentially locked with rotary handle；Cut
The near-end of silk 12 is fixedly connected with sliding handle, and because sliding handle is circumferentially locked with rotary handle, therefore rotary handle rotates
When chopping 12 can be driven to rotate.
Preferably, in order to ensure processing safety, can copper sheathing 112 close to the circumferential side of controlling organization 21 rigid body 50
Upper setting insulating sleeve 51.
Illustratively housing 30 and limiting mechanism of the present utility model separately below.
<Housing>
In the utility model, housing 30 can be a liner combined bay, and its near-end is snapped in the distal end in manipulation portion 20, specifically
For, the distal end of circumferential controlling organization 21 and the near-end axial lock of housing 30, both are connected by " buckle " form so that week
Can be circumferentially rotatable relative to housing 30 to controlling organization 21.
At least two cavitys are provided with housing 30, one of cavity passes through for chopping 12, and another cavity is led for placement
Motor structure 11.Specifically, as shown in figures 1 and 3, in the utility model, the first chopping chamber 31, first is provided with housing 30
Guidewire lumen 32, the first injecting cavity 33, electrode cavity 34, chopping 12 are arranged in the first chopping chamber 31.The chopping of electrode cavity 34 and first
Chamber 31 is communicated, and is provided with electrode plug 111 and copper sheathing 112 in it.The distal end of housing 30 is further covered with shell 36, shell 36
Distal end be provided with a female Luer 35, female Luer 35 is connected with multi-lumen tube 13, has the second chopping chamber in multi-lumen tube 13
131st, the second guidewire lumen 132, the second injecting cavity 133, chopping 12, seal wire, parenteral solution are respectively from above-mentioned chopping chamber, guidewire lumen, note
Penetrate intracavitary and enter organization internal.Second chopping chamber 131 is provided with opening in the end away from shell 36, and the diameter of chopping 12 exists
Diminish close at opening, minor diameter part 122, minor diameter part 122 and the structure of multi-lumen tube 13 " bow " shape of chopping 12 are faded to by large-diameter portion 121
Cutting pole 14 (as shown in Figure 2).
<Limiting mechanism>
The arrangement and operation principle of limiting mechanism in the present embodiment are said below with reference to Fig. 1 and Fig. 4.
Limiting mechanism includes：
Rigid body 50, rigid body 50 is located at the near-end periphery of chopping 12 and coaxial with chopping 12, and rigid body 50 is along chopping radial direction
Section be non-circular shape, can so improve the moment of torsion of chopping 12；
First limiting mechanism 41, the first limiting mechanism 41 is arranged on outside rigid body 50 and circumferentially locked with rigid body 50, i.e., first
Do not circumferentially rotated between limiting mechanism 41 and rigid body 50, the rotation of rigid body 50 can drive the rotation of the first limiting mechanism 41
Turn；
Second limiting mechanism 42, the second limiting mechanism 42 and the first limiting mechanism 41 match to limit the first limitation machine
The rotating cycle of structure 41, wherein, the first limiting mechanism 41 and the second limiting mechanism 42 are respectively positioned in housing 31.
The cross section in the maximum diameter portion of rigid body 50 is the flat circle of side band, the first limiting mechanism 41 located at the periphery of rigid body 50 with
Chopping 12 is coaxial, has the passage that the shape with rigid body 50 matches in the first limiting mechanism 41, such as with the maximum diameter of rigid body 50
The slideway that the shape of cross section in portion matches, to realize the circumferential locking of rigid body 50 and the first limiting mechanism 41, slide axially.It is excellent
Selection of land, in the limiting mechanism of the present embodiment, the first limiting mechanism 41 is external screw thread element, such as, screw rod etc.；Second limitation machine
Structure 42 is arranged on the periphery of the first limiting mechanism 41 and coordinated with the screw thread of the first limiting mechanism 41, and it can be inner screw member, than
Such as nut.In the present embodiment, the first limiting mechanism is coaxially disposed with the second limiting mechanism, and the axial direction of the second limiting mechanism 42 is long
Degree advance and retreat direction of second limiting mechanism 42 along chopping, is in axial direction matched somebody with somebody more than the axial length of the first limiting mechanism 41
Put in housing 30, the direct of travel and chopping of the first limiting mechanism and the second limiting mechanism it is axially in parallel.Preferably, second
The effective travel length of limiting mechanism is twice of the first limiting mechanism stroke when chopping reaches maximum rotating cycle in the same direction.
Although the shape of cross section in the maximum diameter portion of rigid body 50 is the flat circle of side band in the present embodiment, unlimited
Its fixed shape, as long as torque can be transmitted circumferentially, irregular polygon as shown in Fig. 5 (a), (b), (c), with projection
Circle, key connection etc..In addition, being not easy to rotation process because chopping 12 is excessively very thin, in order to strengthen driving effect, rigid body 50 can prolong
Chopping 12 is extended close to circumferential 21 sections of controlling organization, rigid body 50 along chopping 12 axially across circumferential controlling organization 21 and with axial control
Mechanism 22 processed is fixedly connected, and chopping 12 is fixedly connected with rigid body 50.
In the present embodiment, near-end and the copper sheathing 112 of the second limiting mechanism 42 are abutted against, and are set in the distal end of the second limiting mechanism 42
Metal catch 43 is equipped with, the distance between catch 43 and copper sheathing 112 are the range of the first limiting mechanism 41.Original state
Under, the first limiting mechanism 41 is arranged on the middle part of the second limiting mechanism 42, and itself and catch 43 or copper sheathing 112 and second limit machine
The distance of the intersection of structure 42 is the product of the pitch of the maximum rotating cycle of default chopping 12 and the screw thread of the second limiting mechanism 42, so that
Chopping 12 can rotate clockwise or counter-clockwise default maximum rotating cycle (Ru Wuquan) until arriving at catch 43 or copper sheathing
112 and the intersection of the second limiting mechanism 42 park.In the large-diameter portion 121 and path of chopping 12 in the range of wherein maximum rotating cycle
Moment of torsion produced by between portion 122 is less than its breakaway torque.
The distal end of first chopping chamber 31 is provided with spring 113, spring 113 is set in chopping 12, spring 113 is distally solid
Surely be provided with quoit 114, spring near-end is electrically connected with copper sheathing 112, so, electrode plug 111, copper sheathing 112, spring 113,
Quoit 114 is constantly in electric connection state with chopping 12.
Although the first limiting mechanism 41, the second limiting mechanism 42 are circumferential complete structure in the present embodiment, not
There is its shape of restriction, or appearance as shown in Figure 6, as long as having the second limit in the rotary course of the first limiting mechanism 41
Mechanism 42 processed is matched to be enough to limit the advance and retreat of the first limiting mechanism 41 in the axial direction.
Preferably, limiting mechanism also includes stop mechanism, and stop mechanism can be arranged on the first limiting mechanism or the second limit
The two ends of mechanism processed are used for the stroke range for controlling the first limiting mechanism.In the present embodiment, stop mechanism is by catch 43 and copper
Set 112 is constituted, and catch 43 and copper sheathing 112 prevent the traveling of the first limiting mechanism 41, but this at the two ends of the second limiting mechanism 42
The stop mechanism of utility model does not have therefore is limited to, and it can also be provided on the path of the second limiting mechanism 42 and preset
Two stoppers of position.
The rotary stopper and cutting operation being made up of the tissue dissection device being configured as above will be illustrated here.
In ESS, cutting pole 14, close to band cutting tissue, is revolved under the guiding of seal wire by rotating circumferential controlling organization 21
Modulation section cuts the angle of pole 14.Chopping 12 is rotated under the drive of circumferential controlling organization 21, and rigid body 50 is fixed with chopping 12 to be connected
Connect, so as to drive the first limiting mechanism 41 with the circumferential locking of rigid body 50 to rotate, while the first limiting mechanism 41 is in the second limitation
It is advanced axially relative or retreats under the cooperation of mechanism 42, do not readvanced when reaching catch 43, spinning movement is limited.Cut
When, be powered to chopping 12 and pull axial controlling organization 22, make chopping 12 be moved rearwards by complete cutting, connection fixed thereto it is firm
Body 50 is slided in slideway, and spring 113 is connected between copper sheathing 112 and quoit 114 to strengthen to chopping 12 with compressive state
Power supply capacity.After the completion of incision, spring 113 resets, so as to promote quoit 114 so that chopping 12 resets, while can pass through
Second injecting cavity 133 aids in decoction to the sprinkling of the tissue portion of being cut open.
Embodiment two
Embodiment two changes on the basis of embodiment one to limiting mechanism.In the present embodiment, the first limiting mechanism
41 ' and second limiting mechanism 42 ', housing 30 ' Dui Ying not foregoing first limiting mechanism 41, the second limiting mechanism 42, shell
The embodiment that body 30 is changed.Except the first limiting mechanism 41 ', the second limiting mechanism 42 ', sliding support 44, perforate 45 and housing
Other composition parts outside 30 ' are identical with above-mentioned tissue dissection device composition, and omit its description here.
As shown in Figure 7,8, the first limiting mechanism 41 ' is screwing element, and the second limiting mechanism 42 ' is and the first limiting mechanism
41 ' the screwing elements being engaged, alternatively, the first limiting mechanism 41 ' can be external screw thread element, and the second limiting mechanism 42 ' can
Think inner screw member.Limiting mechanism also includes sliding support 44, and sliding support 44 is internal and can edge wherein located at housing 30 '
Slide axially, the second limiting mechanism 42 ' is fixedly installed on sliding support 44, sliding support 44 is along the first limiting mechanism 41 '
There is perforate 45, the first limiting mechanism 41 ' is configured in perforate 45, and thus the scope of activities of the first limiting mechanism is limited on axial direction
System is in the range of perforate 45, and the both sides of perforate 45 constitute stop mechanism.
In the present embodiment 2, the first limiting mechanism 41 ' is fixedly connected with rigid body 50, is matched with the first limiting mechanism 41 '
The second limiting mechanism 42 ' be installed on sliding support 44, sliding support 44 is arranged in the slideway of housing 30 ', sliding support
The first limiting mechanism 41 ' under the perforate 45 of the first limiting mechanism 41 ', original state can be accommodated and be placed in perforate 45 by being offered on 44
In, and be the maximum rotating cycle of default first limiting mechanism 41 ' and the spiral shell of the first limiting mechanism 41 ' with the distance at the two ends of perforate 45
The product of the pitch of line, to limit the rotation of the first limiting mechanism 41 '.The two ends of first limiting mechanism 41 ' and perforate inward flange away from
From the effective travel that sum is the second limiting mechanism 42 ', the effective travel length of the second limiting mechanism 42 ' reaches in the same direction for chopping
Twice of the stroke of first limiting mechanism 41 ' during maximum rotating cycle.
The rotary stopper and cutting operation being made up of the tissue dissection device being configured as above will be illustrated here.
In ESS, cutting pole 14, close to band cutting tissue, is revolved under the guiding of seal wire by rotating circumferential controlling organization 21
Modulation section cuts the angle of pole 14.Chopping 12 is rotated under the drive of circumferential controlling organization 21, and rigid body 50 is fixed with chopping 12 to be connected
Connect, so as to drive the first limiting mechanism 41 ' being fixedly connected with rigid body 50 to rotate, while the first limiting mechanism 41 ' is in the second limit
It is advanced axially relative or retreats under the cooperation of mechanism 42 ' processed, is not readvanced when reaching 45 edge of perforate, spinning movement is limited
System.During incision, it is powered to chopping 12 and pulls axial controlling organization 22, makes chopping 12 be moved rearwards by completing cutting, company fixed thereto
The rigid body 50 connect drives whole sliding support 44 to be slided in housing 30 ', and spring 113 is connected to the He of copper sheathing 112 with compressive state
To strengthen the power supply capacity to chopping 12 between quoit 114.After the completion of incision, spring 113 resets, so as to promote quoit
114 so that chopping 12 resets.
Embodiment three
In the present embodiment, the first limiting mechanism 41 " and the second limiting mechanism 42 " Dui Ying not foregoing first limitation machines
Structure 41, the embodiment of the second limiting mechanism 42 modification.
As shown in Fig. 9,10, the first limiting mechanism 41 " is a gear, and the gear is arranged on rigid body 50 and same with chopping 12
Axle is configured, the passage that there is the shape with rigid body 50 to match in it, such as the shape of cross section phase in the maximum diameter portion of rigid body 50
The slideway of matching, to realize that rigid body 50 locks and slid axially with the circumferential of gear.
Second limiting mechanism 42 " is the rack being meshed with the gear of the first limiting mechanism 41 " being arranged in housing, tooth
Radial arrangement of the bar along chopping.Catch 62 is provided at both ends with rack effective travel, the catch 62 constitutes stop mechanism, catch
The tooth number Z of rack between 621For the tooth number Z of gear22n times the maximum rotating cycle of chopping 12 (n be).Under original state, tooth
Wheel is arranged on the centre of rack, is rotated by the drive gear of chopping 12, so rack under the driving of gear in being moved in effective travel
It is dynamic, arrive at effective travel edge when chopping 12 rotates clockwise or counter-clockwise default maximum rotating cycle (Ru Wuquan)
Park at catch 62.Alternatively it is also possible to be rotationally advancing to drive chopping to rotate by rack drives gear, when chopping is rotated to
Gear is deviate from out of rack during the maximum number of turns.Chopping 12 is in large-diameter portion 121 and minor diameter part 122 in the range of wherein maximum rotating cycle
Between produced by moment of torsion below breakaway torque.
It should illustrate, catch 62 could be arranged to room, can be taken off when gear arrives at the room at rack effective travel edge
Go out so as to which the stroke to gear has played restriction effect.
Other composition parts of the present embodiment are identical with the tissue dissection device composition of embodiment one, omit here to it
Explanation.
Example IV
In the present embodiment, the first limiting mechanism 41 " ' and the second limiting mechanism 42 " ' Dui Ying foregoing first limitation
Mechanism 41, the embodiment of the second limiting mechanism 42 modification.
As shown in Figure 11,12, the first limiting mechanism 41 " ' it is first with the coaxial external screw thread of chopping 12 to be arranged on rigid body 50
Part.The cross section in the maximum diameter portion of rigid body 50 is to have the shape phase with rigid body 50 in the flat circle of side band, external screw thread element
The slideway that the shape of cross section in the maximum diameter portion of the passage matched somebody with somebody, such as rigid body 50 matches, to realize that rigid body 50 and first is limited
Mechanism 41 " ' circumferential locking, slide axially.
Second limiting mechanism 42 " ' it is position-limited wheel, it is also inner screw member, is fixed on housing, with first with external screw thread
The internal thread that the external screw thread of part is engaged.From being by the second limit in the present embodiment unlike the limiting mechanism in embodiment one
Mechanism position-limited wheel processed drives the first limiting mechanism to be rotationally advancing；And be to drive second to limit by the first limiting mechanism in embodiment one
Mechanism processed is rotationally advancing.
The stroke of the internal thread of inner screw member is equal to two of stroke when external screw thread element 41 " ' reaches maximum rotating cycle
Times, in outer screwing element 41 " ' externally threaded distal end is provided with block/projection, and the block/projection constitutes stop mechanism.Initially
The middle part of under state, inner screw member 42 " ' be located at external screw thread element 41 " ', so that chopping 12 can revolve clockwise or counter-clockwise
Default maximum rotating cycle (Ru Wuquan) is gone to until arriving at block/projection and parking.Wherein maximum rotating cycle scope inscribe
Moment of torsion of the silk 12 produced by between large-diameter portion 121 and minor diameter part 122 is below breakaway torque.
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Title etc. can be different.The equivalent or simple change that all construction, feature and principles according to described in the utility model inventional idea are done,
In the protection domain for being included in the utility model patent.The utility model person of ordinary skill in the field can be to being retouched
The specific embodiment stated is made various modifications or supplement or substituted using similar mode, without departing from the utility model
Structure or surmount scope defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (13)
1. a kind of scope tissue dissection device, including：
Cutting part, the cutting part includes chopping, the conductive mechanism being electrically connected with the chopping；
Manipulation portion, the manipulation portion is arranged on the chopping near-end；
Housing, the near-end of the housing is snapped in the distal end in the manipulation portion, and at least two chambers are provided with the housing
Body with respectively for the chopping by with dispose the conductive mechanism；
Characterized in that, the scope tissue dissection device also includes the limiting mechanism for being used to limit chopping rotating cycle, institute
Stating limiting mechanism includes：
Rigid body, the rigid body is located at the near-end periphery of the chopping and coaxial with the chopping；
First limiting mechanism, first limiting mechanism is arranged on the rigid body periphery and realized between the rigid body circumferential solid
It is fixed；
Second limiting mechanism, second limiting mechanism matches to limit the first limitation machine with first limiting mechanism
The rotating cycle of structure.
2. scope according to claim 1 tissue dissection device, wherein, the limiting mechanism also includes stop mechanism,
The stop mechanism is arranged on the two ends of first limiting mechanism or second limiting mechanism.
3. scope according to claim 1 tissue dissection device, wherein, have in first limiting mechanism with it is described
The passage that rigid body shape matches is so that first limiting structure can sliding axially along the rigid body.
4. scope according to claim 1 tissue dissection device, wherein, first limiting mechanism is consolidated with the rigid body
Fixed connection.
5. scope according to claim 1 tissue dissection device, wherein, the limiting mechanism also includes sliding support,
The sliding support located at the enclosure interior and can sliding axially along the chopping, second limiting mechanism is fixedly installed
In on the sliding support, having perforate in axial direction of the sliding support along first limiting mechanism, described first limits
Mechanism is configured in the perforate.
6. scope according to claim 1 tissue dissection device, wherein, first limiting mechanism is external screw thread member
Part, second limiting mechanism is the inner screw member matched with the external screw thread element.
7. scope according to claim 1 tissue dissection device, wherein, first limiting mechanism is gear, described
Second limiting mechanism includes the rack being engaged with gear.
8. scope as claimed in any of claims 1 to 7 tissue dissection device, it is characterised in that：The manipulation
Portion includes the axial controlling organization for controlling the circumferential controlling organization of the chopping rotation and controlling the chopping to retreat, the chopping
It is fixedly connected with the axial controlling organization, the axial controlling organization is slidably arranged on the circumferential controlling organization, and institute
Axial controlling organization is stated circumferentially to lock with the circumferential controlling organization.
9. scope as claimed in any of claims 1 to 7 tissue dissection device, it is characterised in that：The rigid body
For guide pipe, it is arranged in the housing.
10. scope as claimed in any of claims 1 to 7 tissue dissection device, it is characterised in that：The conduction
Mechanism includes electrode plug and the copper sheathing being engaged with the electrode plug, and the copper sheathing is sheathed on outside the rigid body for institute
Rigid body is stated to pass through.
11. scope as claimed in any of claims 1 to 7 tissue dissection device, it is characterised in that：The chopping
Far-end upper, close to second limiting mechanism is arranged with spring, and the distal end of the spring is provided with quoit, the bullet
It is electrically connected between spring, chopping and the quoit.
12. scope as claimed in any of claims 1 to 7 tissue dissection device, it is characterised in that：The rigid body
It is non-circular shape along the section of the chopping radial direction.
13. scope according to claim 8 tissue dissection device, it is characterised in that：The circumferential controlling organization is rotation
Handle is changed hands, the axial controlling organization is sliding handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073370.9U CN206473393U (en) | 2016-09-02 | 2016-09-02 | A kind of scope tissue dissection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073370.9U CN206473393U (en) | 2016-09-02 | 2016-09-02 | A kind of scope tissue dissection device |
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| CN206473393U true CN206473393U (en) | 2017-09-08 |
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| CN201621073370.9U Active CN206473393U (en) | 2016-09-02 | 2016-09-02 | A kind of scope tissue dissection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638198A (en) * | 2017-09-30 | 2018-01-30 | 四川大学华西医院 | Mucous membrane peels off apparatus under a kind of scope of swallow-tail form cutter head |
| CN107693110A (en) * | 2017-09-30 | 2018-02-16 | 四川大学华西医院 | Mucous membrane stripper under a kind of scope |
| CN108186110A (en) * | 2018-02-05 | 2018-06-22 | 常州乐奥医疗科技股份有限公司 | A kind of scope high-frequency electrical cutting apparatus |
| CN109480962A (en) * | 2018-12-20 | 2019-03-19 | 深圳开立生物医疗科技股份有限公司 | A kind of incision knife knife silk |
| CN109875674A (en) * | 2017-12-06 | 2019-06-14 | 刘珈 | Tumour ablation equipment |
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2016
- 2016-09-02 CN CN201621073370.9U patent/CN206473393U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638198A (en) * | 2017-09-30 | 2018-01-30 | 四川大学华西医院 | Mucous membrane peels off apparatus under a kind of scope of swallow-tail form cutter head |
| CN107693110A (en) * | 2017-09-30 | 2018-02-16 | 四川大学华西医院 | Mucous membrane stripper under a kind of scope |
| CN109875674A (en) * | 2017-12-06 | 2019-06-14 | 刘珈 | Tumour ablation equipment |
| CN108186110A (en) * | 2018-02-05 | 2018-06-22 | 常州乐奥医疗科技股份有限公司 | A kind of scope high-frequency electrical cutting apparatus |
| CN109480962A (en) * | 2018-12-20 | 2019-03-19 | 深圳开立生物医疗科技股份有限公司 | A kind of incision knife knife silk |
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Address after: 311100 Building 597 Kangxin Road, Yuhang District, Hangzhou City, Zhejiang Province, 5 and 6 (except Room 103 and 202) Patentee after: Hangzhou Anjisi Medical Science and Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 311106 Xinlu Kang Yuhang District of Yuhang economic and Technological Development Zone No. 597 building 6 Patentee before: Hangzhou Anjisi Medical Technology Co., Ltd. |