CN209186930U - A kind of scope electric knife with Double-cutter head - Google Patents
A kind of scope electric knife with Double-cutter head Download PDFInfo
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- CN209186930U CN209186930U CN201821053057.8U CN201821053057U CN209186930U CN 209186930 U CN209186930 U CN 209186930U CN 201821053057 U CN201821053057 U CN 201821053057U CN 209186930 U CN209186930 U CN 209186930U
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- electric knife
- scope electric
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Abstract
The utility model relates to scope knife technical fields, and in particular to the scope electric knife with Double-cutter head, comprising: the first handle and second handle of opposite sliding setting, second handle is under external force along the axially reciprocating of first handle；The first cutter head and the second cutter head being mutually arranged, are retractably installed in the internal cavities of outer tube, and the first cutter head including being arranged is connect by a conduct piece with the power connection on second handle, and stretch out or withdraw in cavity under the drive of second handle；Damping structure, it is connected between the second cutter head and cavity inner wall, for being applied to first first active force for preventing it from moving synchronously with the first cutter head of the second knife when second handle moves, or allow when the first cutter head moves to predetermined position the second cutter head that the second active force of cavity is stretched out or withdrawn under the action of second handle.The utility model provides a kind of scope electric knife with Double-cutter head that two cutter heads can be operated continuously, and are independent of each other.
Description
Technical field
The utility model relates to scope knife technical fields, and in particular to a kind of scope high-frequency electrical with Double-cutter head
Knife.
Background technique
In recent years, with the development of endoscopic technic, the biopsy of scope undertissue, endoscopic inferior mucosa resection, endoscopic inferior mucosa
Decollement is widely used, to the discovery of hemorrhage of digestive tract, narrow, polypectomy and alimentary canal morning cancer, diagnosis and
Treatment plays key effect.Currently on the market common knife be mainly the DUAL knife of Olympus, IT knife, the hook-shaped knife of HOOK and
TT triangular knife etc..The stick electrode of DUAL knife can quickly be got ready and make marks and cut mucous membrane；There is ceramic insulation in IT cutter head portion
Body protection prevents from cutting to unnecessary position when removing mucous layer, prevents perforation and bleeding；The hook-shaped knife L shape cutter head of HOOK turns
Suitable angle is moved, lesion edge can be quickly cut；Three valve radial electrodes of TT triangular knife be conducive to get ready make marks and
Burn blutpunkte hemostasis.
Doctor is related to plurality of step and instrument in the course of surgery, such as carries out lesion label with argon-gas knife, is infused with injection needle
It penetrates physiological saline and raises lesions position, burn to get ready with DUAL knife or TT triangular knife and mark, with HOOK billhook or DUAL knife edge
Label cuts edge, with IT knife removing tissue, burns blutpunkte hemostasis, is stopped blooding with hemostatic clamp, with hot biopsy forceps electric coagulation hemostasis, is used
Electric snare set cutting is cut.However frequently replacement instrument makes operation become cumbersome during surgery, not only brings not to doctor
Just, operating time is also extended, brings pain to patient.
In order to solve the above-mentioned technical problem, Chinese patent literature CN205758711U discloses polyp under a kind of scope and draws
Electric knife is cut off, is mainly made of clamping pliers, electric knife, double lumen tube, clamping pliers control handle and electric knife control handle, clamping pliers are fixed on double
The tail end of the end of lumen, clamping pliers is connected to clamping pliers control handle by a cavity in double lumen tube by traction steel wire, folder
Take pincers control handle control clamping pliers opening and closing movement；Electric knife is connected by another cavity in double lumen tube with electrode, and electrode is set to
On electric knife control handle.Clamping pliers tail end traction steel wire is connected with clamping pliers control handle, passes through the activity of clamping pliers control handle, control
Clamping pliers open and close movement processed；Clamping pliers binding clip opens, and polyp tissue is clamped pull-up, electric knife is reached below clamping pliers and to be cut off
Polyp after tie tight, the side Bian Tong electricity tighten electric knife, cut off polyp tissue.Although the program can carry out simultaneously polyp clamping and
Cutting, but for needing the operation of two kinds of cutter heads continuous operation, which is simultaneously not suitable for.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome scope electricity consumption knife function list in the prior art
One, it can not achieve two cutter heads continuous operations, and respectively independence, the defect being independent of each other, so that providing two cutter heads of one kind can
To operate continuously, and the scope electric knife with Double-cutter head being independent of each other.
In order to solve the above-mentioned technical problem, the utility model provides a kind of scope electric knife with Double-cutter head,
Include:
The first handle and second handle of opposite sliding setting, the second handle is under external force along described first-hand
The axially reciprocating of handle；
The first cutter head and the second cutter head being mutually arranged, are retractably installed in the internal cavities of outer tube, and setting exists
The first interior cutter head is connect by a conduct piece with the power connection on the second handle, and in the drive of the second handle
Lower stretching is withdrawn in the cavity；
Damping structure is connected between second cutter head and the cavity inner wall, for moving in the second handle
When be applied to first first active force for preventing it from moving synchronously with first cutter head of second knife, or described
One cutter head allows second cutter head that the sky is stretched out or withdrawn under the action of the second handle when moving to predetermined position
Second active force of chamber.
The scope electric knife with Double-cutter head, the damping structure are force direction perpendicular to described second
The bias piece of the telescopic direction of cutter head.
The scope electric knife with Double-cutter head, the bias piece are compressed spring, the compressed spring
Both ends pass through respectively an annulus be fixed on the body being arranged in the cavity and the outer wall of second cutter head on.
The scope electric knife with Double-cutter head, second cutter head are less than described along axial extension elongation
First cutter head forms an insulation hemisphere, the insulation hemisphere on the top of second cutter head along axial extension elongation
The stepped hole that a permission first cutter head is pierced by or pierces into is formed on body.
The scope electric knife with Double-cutter head, the top of first cutter head, which forms, prevents described first
The stopper section that cutter head retracts into the insulation hemisphere.
The scope electric knife with Double-cutter head, the junction of first cutter head and the conduct piece also
It is arranged with a fastener, the fastener is supported when first cutter head moves to predetermined position at the end of second cutter head
End, to push second cutter head to stretch out the cavity under the action of second handle.
The scope electric knife with Double-cutter head, in the outer tube close to first cutter head and described second
A dead ring is formed at the port of bit tip, first cutter head and second cutter head are pierced by from the dead ring.
The scope electric knife with Double-cutter head, the insulation hemisphere are Ceramic Balls, and the dead ring is
Ceramic ring.
The scope electric knife with Double-cutter head, the second handle are equipped with close to one end of the outer tube
One protection pipe, the conduct piece extend to the end of first cutter head after being pierced by the protection pipe.
The scope electric knife with Double-cutter head, the conduct piece are steel wire or energization silk.
Technical solutions of the utility model have the advantages that
1. the scope electric knife provided by the utility model with Double-cutter head, when needing the work of the first cutter head, only
Need to be applied to the first active force of second handle, the cavity for making it that the first cutter head be pushed to extend outer tube, first effect
Influence of the power due to being damped structure, is not sufficient to that the second cutter head is pushed to extend cavity, and the first cutter head works normally at this time；
When needing the work of the second cutter head, continue to exert a force to second handle, until second active force is enough that damping structure is overcome to apply
To the active force of the second cutter head, the second cutter head is released into cavity, second handle is then pulled reversely with the size of the first active force,
First cutter head is returned to the position flushed with the second cutter head, thus guarantee the second cutter head normal work, so that it will not by
The influence of first cutter head.
2. the scope electric knife provided by the utility model with Double-cutter head, damping structure be force direction perpendicular to
The bias piece of the telescopic direction of second cutter head, bias piece are compressed spring.Increased in this way using the elastic reaction of compressed spring itself
Big interaction force between second cutter head and the first cutter head, the effect that the second cutter head is provided according to second handle
Power size is stretched in outer tube cavity, realizes the first cutter head and the respective independent operation of the second cutter head.
3. the scope electric knife provided by the utility model with Double-cutter head, the insulation of the second bit tip is hemispheroidal
Setting can not only play the role of cooling heat preservation, can also play insulation protection, while can prevent the second cutter head from existing
Unnecessary position is cut to when work, improves safety.
4. the scope electric knife provided by the utility model with Double-cutter head, the junction of the first cutter head and conduct piece
The setting of fastener, so that second handle persistently exerts a force and allows for fastener when the first cutter head moves to predetermined position
It supports in the end of the second cutter head, so that the second cutter head be pushed to stretch out cavity, realizes the first cutter head and the second cutter head work shape
The switching of state.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of the scope electric knife provided by the utility model with Double-cutter head；
Fig. 2 is the partial enlargement diagram of Fig. 1.
Description of symbols:
1- first handle；2- second handle；The first cutter head of 3-；The second cutter head of 4-；5- outer tube；6- damping structure；7- is conductive
Part；8- annulus；9- body；10- fastener；20- protection pipe；30- spring-guide wire；11- pull ring；21- handle cover；22- power supply connects
Head；The stopper section 31-；41- insulation hemisphere；51- dead ring.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
A kind of specific embodiment of scope electric knife with Double-cutter head as illustrated in fig. 1 and 2, including it is relatively sliding
The first handle 1 and second handle 2 of dynamic setting, the first cutter head 3 and the second cutter head 4 being mutually arranged, and it is connected to described the
Damping structure 6 between 5 cavity inner wall of two cutter heads 4 and outer tube.First handle 1 is the fixation hand that end forms a pull ring 11
Handle, second handle 2 are that the both ends of vertical axial are separately formed the sliding handle of a pull ring, and the setting of pull ring facilitates force；It is sliding
Fixed handle forms the cavity for allowing fixed handle to pass through along axial direction, and the second handle 2 is under external force along described first
The axially reciprocating of handle 1；Second handle 2 forms handle cover 21, second handle far from one end of 1 pull ring 11 of first handle
2 side is equipped with power connection 22, is used for external high frequency electric source, powers for the first cutter head 3.First cutter head 3 is DUAL cutter head,
Second cutter head 4 is IT cutter head, and the first cutter head 3 and the second cutter head 4 are retractably installed in the internal cavities of outer tube 5, is arranged
The first cutter head 3 inside is connect by a conduct piece 7 with the power connection 22 on the second handle 2, and in the second-hand
It stretches out or is withdrawn in the cavity under the drive of handle 2, excision lesion is cut by high-frequency electrical after energization and is led in the present embodiment
Electric part 7 is steel wire.Damping structure 6 be used for the second handle 2 movement when be applied to second cutter head 4 one prevent its with
The first active force that first cutter head 3 moves synchronously only pushes the first cutter head 3 to stretch out outer tube 5, carries out lesion excision；Institute
When stating the first cutter head 3 and moving to predetermined position, second handle 2 continues to exert a force, until damping structure 6 is overcome to act on the second cutter head
Active force on 4 meets the size of the second active force, described in second cutter head 4 stretches out under the action of second handle 2
Then cavity is driven in the reverse direction second handle 2 with the power of the first amount of force, make the first cutter head 3 retract to the second cutter head 4
Front end flushes, and the second cutter head 4 carries out the operations such as removing tissue, continues reversed force until meeting the big of the second active force again
Small, the second cutter head 4 and the first cutter head 3 are retracted simultaneously to initial position.
The damping structure 6 is bias piece of the force direction perpendicular to the telescopic direction of second cutter head 4.Specifically,
The bias piece is compressed spring, and the both ends of the compressed spring pass through an annulus 8 respectively and are fixed on setting in the cavity
Body 9 on and second cutter head 4 outer wall on.Body 9 is mounted in the space between the second cutter head 4 and outer tube 5, and is held
Portion forms the installation space of compressed spring.It is packed up in the first cutter head 3 and the second cutter head 4, i.e., most of sky for being placed in outer tube 5
When in chamber, compressed spring is in compressive state, makees to be applied to the damping that 4 one the first cutter heads of direction 3 of the second cutter head compress
Firmly.
Second cutter head 4 is less than first cutter head 3 along axial extension elongation along axial extension elongation, i.e., and first
Extend the end of the second cutter head 4 in the both ends of cutter head 3；An insulation hemisphere 41 is formed on the top of second cutter head 4,
The stepped hole that a permission first cutter head 3 is pierced by or pierces into, the insulation hemisphere are formed on the insulation hemisphere 41
41 be Ceramic Balls.The top of first cutter head 3, which forms, prevents first cutter head 3 from retracting into the insulation hemisphere 41
Stopper section 31, stopper section 31 and the first cutter head 3 be integrally formed, and diameter is greater than the stepped hole and the second cutter head of insulation hemisphere 41
The internal diameter of 4 through-hole prevents the first cutter head 3 to be detached from from the second cutter head 4 when retracting.
It is also arranged with a fastener 10 in the junction of first cutter head 3 and the conduct piece 7, fastener 10 is used for will
First cutter head 3 and conduct piece 7 firmly install；The fastener 10 is supported when first cutter head 3 moves to predetermined position
The end of second cutter head 4, to push second cutter head 4 to stretch out the cavity under the action of second handle 2.
A dead ring is formed at the port of first cutter head 3 and 4 end of the second cutter head in the outer tube 5
51, dead ring 51 is embedded in outer tube 5, and first cutter head 3 and second cutter head 4 are pierced by from the dead ring 51, absolutely
The setting of edge ring 51 effectively prevents retracting to outer tube 5 completely when the first cutter head 3 and the second cutter head 4 rollback.Specifically, institute
Stating dead ring 51 is ceramic ring.
It further include a spring-guide wire 30, spring-guide wire 30 is mounted on one end opposite with compressed spring of body 9, outer tube 5
It is wrapped on spring-guide wire 30, the conduct piece 7 extends to the end of first cutter head 3 after being pierced by spring-guide wire 30.
The second handle 2 is equipped with a protection pipe 20 close to one end of the outer tube 5, and protection pipe 20 can be for some strength
Insulation tube.
The application method of the scope electric knife with Double-cutter head of the present embodiment is as follows: before use, the first cutter head 3
Stopper section 31 be aligned with the front end face of the second cutter head 4 in Ceramic Balls stepped hole, and closely in outer tube 5 ceramic ring setting；When
When needing using the first cutter head 3, axially forward Slideslip of the second handle 2 along first handle 1 only need to be driven, driving force passes through steel
Silk is transferred to the end of the first cutter head 3, so that the first cutter head 3 of driving extends the cavity of outer tube 5, at this time due to compressed spring pair
The damping action of second cutter head 4, the second cutter head 4 will not be skidded off from cavity, and such first cutter head 3 can work normally；When
When needing using the second cutter head 4, the force of second handle 2 is continued through, until the active force is enough that compressed spring is overcome to be applied to
The damping action of second cutter head 4, second handle 2 act on the end of the second cutter head 4 by the fastener 10 connecting with steel wire, into
And the second cutter head 4 is made to extend cavity, and second handle 2 is then pulled back again, the first cutter head 3 of driving moves backward, until
The stopper section 31 of first cutter head 3 is flushed with the front end of the second cutter head 4, and the second cutter head 4 can work normally；Finally continue backward
Second handle 2 is driven, the first cutter head 3 and the second cutter head 4 move synchronously, and contact until supporting with the dead ring 51 of outer tube 5, complete
Once-through operation.
As a kind of alternative embodiment, damping structure 6 include be separately formed on 4 outer wall of the second cutter head protrusion and
It is molded over the groove of 5 inner wall corresponding position of outer tube, protrusion has guiding surface, for guiding the second cutter head 4 relative to the first knife
First 3 direction of motion.
As a kind of alternative embodiment, the conduct piece 7 is energization silk.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (10)
1. a kind of scope electric knife with Double-cutter head characterized by comprising
The first handle (1) and second handle (2) of opposite sliding setting, the second handle (2) is under external force along described
The axially reciprocating of first handle (1)；
The first cutter head (3) and the second cutter head (4) being mutually arranged, are retractably installed in the internal cavities of outer tube (5), if
The first cutter head (3) including setting is connect by a conduct piece (7) with the power connection (22) on the second handle (2), and
It stretches out or is withdrawn in the cavity under the drive of the second handle (2)；
Damping structure (6) is connected between second cutter head (4) and the cavity inner wall, in the second handle (2)
The first active force that second cutter head (4) one prevents it from moving synchronously with first cutter head (3) is applied to when movement, or
Person allows second cutter head (4) in the effect of the second handle (2) when first cutter head (3) moves to predetermined position
Lower stretching or the second active force for withdrawing the cavity.
2. the scope electric knife according to claim 1 with Double-cutter head, which is characterized in that the damping structure
It (6) is force direction perpendicular to the bias piece of the telescopic direction of second cutter head (4).
3. the scope electric knife according to claim 2 with Double-cutter head, which is characterized in that the bias piece is pressure
Contracting spring, the both ends of the compressed spring pass through respectively an annulus (8) be fixed on the body (9) being arranged in the cavity and
On the outer wall of second cutter head (4).
4. the scope electric knife according to claim 1 with Double-cutter head, which is characterized in that second cutter head
(4) it is less than first cutter head (3) along axial extension elongation, on the top of second cutter head (4) along axial extension elongation
End forms an insulation hemisphere (41), and a permission first cutter head (3) is formed on the insulation hemisphere (41) and is pierced by
Or the stepped hole pierced into.
5. the scope electric knife according to claim 4 with Double-cutter head, which is characterized in that first cutter head
(3) top forms the stopper section (31) for preventing first cutter head (3) from retracting into insulation hemisphere (41).
6. the scope electric knife according to claim 1 with Double-cutter head, which is characterized in that in first cutter head
(3) it is also arranged with a fastener (10) with the junction of the conduct piece (7), the fastener (10) is in first cutter head
(3) it is supported when moving to predetermined position in the end of second cutter head (4), to be pushed away under the action of the second handle (2)
It moves second cutter head (4) and stretches out the cavity.
7. the scope electric knife according to claim 4 with Double-cutter head, which is characterized in that in the outer tube (5)
It is formed a dead ring (51) at the port on first cutter head (3) and second cutter head (4) top, first knife
Head (3) and second cutter head (4) are pierced by from the dead ring (51).
8. the scope electric knife according to claim 7 with Double-cutter head, which is characterized in that the insulation hemisphere
It (41) is Ceramic Balls, the dead ring (51) is ceramic ring.
9. the scope electric knife according to claim 1 with Double-cutter head, which is characterized in that the second handle
(2) one end close to the outer tube (5) is equipped with a protection pipe (20), and the conduct piece (7) is worn from the protection pipe (20)
The end of first cutter head (3) is extended to after out.
10. the scope electric knife according to claim 1 with Double-cutter head, which is characterized in that the conduct piece (7)
For steel wire or energization silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821053057.8U CN209186930U (en) | 2018-07-04 | 2018-07-04 | A kind of scope electric knife with Double-cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821053057.8U CN209186930U (en) | 2018-07-04 | 2018-07-04 | A kind of scope electric knife with Double-cutter head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209186930U true CN209186930U (en) | 2019-08-02 |
Family
ID=67403169
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821053057.8U Active CN209186930U (en) | 2018-07-04 | 2018-07-04 | A kind of scope electric knife with Double-cutter head |
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| Country | Link |
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| CN (1) | CN209186930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108784828A (en) * | 2018-07-04 | 2018-11-13 | 北京安和加利尔科技有限公司 | A kind of scope electric knife with Double-cutter head |
-
2018
- 2018-07-04 CN CN201821053057.8U patent/CN209186930U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108784828A (en) * | 2018-07-04 | 2018-11-13 | 北京安和加利尔科技有限公司 | A kind of scope electric knife with Double-cutter head |
| CN108784828B (en) * | 2018-07-04 | 2024-04-19 | 北京安和加利尔科技有限公司 | High-frequency electrotome with double tool bits for endoscope |
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