CN205885497U - Ultrasonic knife head with centre gripping arm drive assembly - Google Patents
Ultrasonic knife head with centre gripping arm drive assembly Download PDFInfo
- Publication number
- CN205885497U CN205885497U CN201620625331.9U CN201620625331U CN205885497U CN 205885497 U CN205885497 U CN 205885497U CN 201620625331 U CN201620625331 U CN 201620625331U CN 205885497 U CN205885497 U CN 205885497U
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- China
- Prior art keywords
- clamping limb
- slide block
- drive component
- cutter head
- ultrasonic cutter
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Abstract
The utility model relates to an ultrasonic knife head with centre gripping arm drive assembly, it has been solved, and prior art has an effect steadily, the technical problem of playback difficulty, and it is equipped with centre gripping arm, centre gripping arm drive assembly, and centre gripping arm drive assembly includes handle, gear, slider, ejector sleeve and return means, and the gear is located between handle and the slider, and the slider is connected with the ejector sleeve, and return means is connected with the slider, and the ejector sleeve is connected with the centre gripping arm. The utility model discloses can be used to in the surgery operation.
Description
Technical field
This utility model is related to a kind of medical apparatus and instruments and in particular to a kind of ultrasonic cutter head with clamping limb drive component.
Background technology
Due to the special performance of ultrasonic surgical instrument, this apparatus is increasingly widely applied in surgical operation.
Construction according to concrete apparatus and operation principle, ultrasonic surgical instrument can carry out blood coagulation while cutting tissue, its work
During do not have electric current to pass through human body, tissue eschar is little, thus the damage to patient is little.The ultrasonic instrument of this characteristic can be by
For open surgery, peritoneoscope or endo-surgical (including the operation of robot assisted).
As shown in figure 1, ultrasonic surgical instrument includes producing the generator 11 of electric excitation, electric excitation is converted into mechanical shock
And the transducer 13 amplifying and the ultrasonic cutter head 14 directly acting on operative site.Ac line voltage distribution is converted into by generator 11 can
The dc level of control.Then, the resonant frequency adjustment dc level after being connected with transducer 13 and ultrasonic cutter head 14.Signal after adjustment
Through filtering and being transferred to the transducer 13 being connected with generator 11, specifically it is transferred to the piezoelectric ceramics in transducer 13
22 two ends.Piezoelectric ceramics 22 has piezoelectric effect, and when piezoelectric ceramics 22 both end voltage changes, its volume will produce accordingly
Change.Press sinusoidal variations when generator 11 exports resonant frequency after electric excitation is connected with transducer 13 and ultrasonic cutter head 14
When, the axial length of piezoelectric ceramics 22 will produce sinusoidal variations by said frequencies, that is, the ultrasound wave required for producing.Transducer
13 other ends are connected with ultrasonic cutter head 14.
Ultrasonic cutter head 14 includes ultrasonic knife bar, clamping limb, tissue pad and clamping limb driving means, and clamping limb can be by closure
Handle operates, and opens towards knife bar surface and closes, and tissue pad is connected on clamping limb and wraps up clamping surface area, clamping limb
Tissue between tissue pad and knife bar produces clamp pressure.When close handles are in the close position, knife bar and tissue pad
In clamping surface area next-door neighbour, blood vessel applies chucking power, and the supersonic vibration transmitted by knife bar makes vascularization engage,
The blood vessel engaging is crosscut and the end of blood vessel is condensed.
Ultrasonic knife bar distal portion primary nodal point position is provided with fixing silica gel ring, and this silica gel ring one side completely cuts off ultrasonic knife bar
The transmission of supersonic vibration and sleeve pipe between, supports ultrasonic knife bar, improves knife bar rigidity；On the other hand stop miscellaneous in operation process
Thing sleeve pipe, causes latch-up phenomenon.This silica gel ring is due to often contacting greasy dirt, the debris such as tissue of eschar, work at high temperature
After making a period of time, itself frictional force and sleeve pipe between can increase, and leads to the elastic force of compression spring to be insufficient to allow close handles to return
Position is it is impossible to make clamping limb automatically open up.
Publication No. cn104780855a Chinese invention patent open (the 218th in specific embodiments) discloses bending
Cutting clamping limb drive component is quadric chain, and close handles are drive rod, and in its closing course, pressure angle constantly increases, when closing
When conjunction handle is of completely closed, close to 90 degree, surgeon is applied to the power in close handles to pressure angle, and only very small part is used
In the closure controlling clamping limb.Meanwhile, after operation terminates, surgeon unclamps close handles, and close handles are in compression spring
Effect is lower to playback, and due to now quadric chain pressure angle, close to 90 degree, spring force only sub-fraction is used for overcoming closure handss
The frictional force of handle.Above-mentioned quadric chain, transmission process pressure angle changes always, and clamping limb stress is unstable, and playback can not
Lean on.
Content of the invention
This utility model is exactly to have an effect unstable, the difficult technical problem of playback to solve existing apparatus, provides one kind
Having an effect, steady, playback the more efficiently ultrasonic cutter head with clamping limb drive component.
For this reason, this utility model provides a kind of ultrasonic cutter head with clamping limb drive component, it is provided with clamping limb, clamping
Arm drive component, clamping limb drive component includes handle, gear, slide block, ejector sleeve and returning device, and gear is located at handle and slide block
Between, slide block is connected with ejector sleeve, and returning device is connected with slide block, and ejector sleeve is connected with clamping limb.
Preferably, gear includes half gear and transition gear, and engagement between the two connects.
Preferably, half gear, on described handle, is provided with tooth on the downside of slide block, and transition gear is passed through on the downside of slide block with slide block
Tooth engagement connect.
Preferably, it is additionally provided with stopper slot, slide block is in stopper slot.
Preferably, returning device is spring, and one end of spring is connected with described slide block, and the other end of spring is fixed.
Preferably, slide block is additionally provided with empty avoiding space, in the movable space in empty avoiding of half gear.
Preferably, it is additionally provided with stopping means.
Preferably, stopping means include front end confined planes and rear end confined planes.
This utility model, due to adopting gear structure, makes ultrasonic cutter head handle have an effect steadily, playback is more effectively.Have an effect flat
Surely reduce the feeling of fatigue of surgeon's this cutter head of long-time operation, playback effectively makes surgeon more convenient to use,
Do not need in operation to divert one's attention to process the problem that clamping limb does not open automatically.
Device disclosed in this patent adopts pinion and rack, and transmission efficiency, and will not be because of closure more than 90%
Handle position is different, and transmission efficiency produces and changes.After operation terminates, surgeon unclamps close handles, and close handles are in pressure
Playback under contracting spring effect, spring force does not have the loss of pressure angle, is completely used for overcoming the frictional force of each part of ultrasonic cutter head.With
The compression spring of sample stiffness factor, using clamping limb closing device disclosed in this patent, can make close handles playback more may be used
Lean on.
During curved scissors coagulates and closes blood vessel or cutting relatively thick tissue, need first to close close handles, handle drives folder
Gripping arm drive component makes ejector sleeve pull back, and ejector sleeve drives clamping limb and cutting knife bar closure, and under wavy spring effect, clamping limb produces
The tissue chucking power of raw desired level, when close handles are of completely closed, this power is more than 18 newton.
Brief description
Fig. 1 is ultrasound knife structural representation；
Fig. 2 is a kind of ultrasonic cutter head clamping device generalized section of this utility model 5mm curved scissors；
Fig. 3 is this utility model knife bar component diagram；
Fig. 4 is this utility model clamping limb actuating assembly schematic diagram.
In figure, 11, generator, 22, piezoelectric ceramics, 13, transducer, 14, ultrasonic cutter head, 2, transition gear, 3, handle, 4,
Slide block, 5, shell, 6, sleeve pipe, 7, bearing pin, 8, clamping limb, 9, cutting knife bar, 10, ejector sleeve, 12, half gear, 24, spring, 31, ripple
Shape spring, 41, empty avoiding space, the 45, first adjustment notch, the 46, second adjustment notch, 200, front end confined planes, 201, rear end limit
Plane.
Specific embodiment
With reference to example, this utility model is described further, but does not limit protection domain of the present utility model:
As shown in Fig. 2 this utility model provide the ultrasonic cutter head with clamping limb drive component, its be provided with clamping limb 8,
Clamping limb drive component, clamping limb drive component includes handle 3, half gear 12 and transition gear 2, slide block 4, ejector sleeve 10 and spring
24, between handle 3 and slide block 4, slide block 4 is connected half gear 12 with ejector sleeve 10, and spring 24 is connected with slide block 4, ejector sleeve 10 with
Clamping limb 8 connects.Clamping limb 8 lower end and ejector sleeve 10 hinge connection, upper end and sleeve pipe 6 hinge connection.Half gear 12 on handle 3, slide block 4
Downside is provided with tooth, and transition gear 2 is engaged by the tooth of slide block 4 downside with slide block 4.Bearing pin 7 is additionally provided with clamping limb 8.
This utility model is additionally provided with stopper slot (not shown), and slide block 4 is in stopper slot.One end of spring 24 and cunning
Block 4 connects, and the other end of spring 24 is fixed on shell 5.Slide block 4 is additionally provided with empty avoiding space 41, half gear 12 movable in keeping away
In absolutely empty 41.This utility model is additionally provided with stopping means, and including front end confined planes 200 and rear end confined planes 201, rear end is spacing
Face 201 is the projection being formed on shell 5.
As shown in Figure 3: slide block 4 and wavy spring 31 link, and wavy spring 31 is connected with ejector sleeve 10, ejector sleeve 10 and clamping limb
8 one-tenth lever constructions, when slide block 4 pulls wavy spring 31 rearward movement, ejector sleeve 10 pulls clamping limb 8 to close.When clamping limb 8 closes
After conjunction, ejector sleeve 10 pulls on wavy spring 31 rearward movement.Certain chucking power will be produced between clamping limb 8 and cutting knife bar 9.
This chucking power is specifically required to be 18n.Reach 18n, slide block 4 rearward movement from clamping limb 8 open mode to chucking power
6.5mm, handle 3 in shell 5 be rotated in angle be 18 ° ± 2 °.Half gear compound graduation garden diameter d=40mm.For avoiding
Cross gear, handle, the installation site mistake of slide block, design and installation position mark symbol especially on these three parts, respectively
First adjustment notch 45 and the second adjustment notch 46.
During use, when handle 3 starts to close under surgical gripping, half gear 12 of handle 3 rear structure will carry
Dynamic transition gear 2 rotates, and transition gear 2 will be slided in the Horizontal limiting groove being configured on left and right shell 5 backward with movable slider 4
Dynamic.While slide block 4 slides backward, ejector sleeve 10 is driven to slide backward.Sleeve pipe 6 and cutting knife bar 9 do not produce with respect to ultrasonic cutter head
Raw shift in position, clamping limb 8 lower end and ejector sleeve 10 hinge connection, upper end and sleeve pipe 6 ibid cut with scissors connection.Ejector sleeve 10 rearward movement will drive folder
Gripping arm 8 is rotated around its upper end hinge point thus being closed with cutting knife bar 9, handle 3 moves to rear end confined planes, you can make clamping limb
8 provide enough chucking power clamping tissues.
After the completion of cutting blood coagulation action, surgeon unclamps close handles 3, and spring 24 will promote slide block 4 along being configured in
Horizontal limiting groove on left and right shell 5 moves forward.The elastic force of spring 24 is more than the frictional force summation of ultrasonic cutter head each several part, from
And smoothly can move to front end confined planes by driving handle 3, so that clamping limb is automatically opened, prepare to cut blood coagulation action next time.
During handle 3 rearward movement, interfere for avoiding half gear 12 being configured in handle 3 rear portion to produce with slide block 4,
Special interference position construction empty avoiding space in the middle of slide block 4.So that half gear 12 being configured in handle 3 rear portion can be moved to
The inside (referring to Fig. 4) of slide block 4.
Claims (8)
1. a kind of ultrasonic cutter head with clamping limb drive component, it is provided with clamping limb, clamping limb drive component, it is characterized in that institute
State clamping limb drive component and include handle, gear, slide block, ejector sleeve and returning device, described gear is located at described handle and described
Between slide block, described slide block is connected with described ejector sleeve, and described returning device is connected with described slide block, described ejector sleeve and described clamping
Arm connects.
2. the ultrasonic cutter head with clamping limb drive component according to claim 1 is it is characterised in that described gear includes
Half gear and transition gear, engagement between the two connects.
3. the ultrasonic cutter head with clamping limb drive component according to claim 2 is it is characterised in that described half gear sets
On described handle, on the downside of described slide block, it is provided with tooth, described transition gear is nibbled by the tooth on the downside of described slide block with described slide block
Close and connect.
4. the ultrasonic cutter head with clamping limb drive component according to claim 1 is it is characterised in that be additionally provided with stopper slot,
Described slide block is in described stopper slot.
5. the ultrasonic cutter head with clamping limb drive component according to claim 1 is it is characterised in that described returning device
For spring, one end of described spring is connected with described slide block, and the other end of described spring is fixed.
6. the ultrasonic cutter head with clamping limb drive component according to claim 1 is it is characterised in that described slide block also sets
Have empty avoiding space, described half gear movable in described empty avoiding space.
7. the ultrasonic cutter head with clamping limb drive component according to claim 1 is it is characterised in that be additionally provided with spacing dress
Put.
8. the ultrasonic cutter head with clamping limb drive component according to claim 7 is it is characterised in that described stopping means
Including front end confined planes and rear end confined planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625331.9U CN205885497U (en) | 2016-06-23 | 2016-06-23 | Ultrasonic knife head with centre gripping arm drive assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625331.9U CN205885497U (en) | 2016-06-23 | 2016-06-23 | Ultrasonic knife head with centre gripping arm drive assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205885497U true CN205885497U (en) | 2017-01-18 |
Family
ID=57768735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620625331.9U Active CN205885497U (en) | 2016-06-23 | 2016-06-23 | Ultrasonic knife head with centre gripping arm drive assembly |
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| CN (1) | CN205885497U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105943125A (en) * | 2016-06-23 | 2016-09-21 | 山东威瑞外科医用制品有限公司 | Ultrasonic scalpel head with clamping arm driving component |
| CN107441641A (en) * | 2017-08-11 | 2017-12-08 | 北京水木天蓬医疗技术有限公司 | A kind of protection device for ultrasound knife |
| CN109350185A (en) * | 2018-12-09 | 2019-02-19 | 盛世润鼎(天津)精密机械有限公司 | A kind of clamp drive mechanism of ultrasound knife cutter head |
| CN112691239A (en) * | 2020-12-06 | 2021-04-23 | 复旦大学 | Aspirator capable of being combined with energy instrument for use |
| CN112741673A (en) * | 2020-12-30 | 2021-05-04 | 常州柯柏电子科技有限公司 | Novel linkage mechanism for handheld ultrasonic cutter |
| CN115624371A (en) * | 2022-11-21 | 2023-01-20 | 厚凯(北京)医疗科技有限公司 | Ultrasonic blade holder, method for producing an ultrasonic blade holder, and ultrasonic blade |
-
2016
- 2016-06-23 CN CN201620625331.9U patent/CN205885497U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105943125A (en) * | 2016-06-23 | 2016-09-21 | 山东威瑞外科医用制品有限公司 | Ultrasonic scalpel head with clamping arm driving component |
| CN105943125B (en) * | 2016-06-23 | 2019-02-05 | 山东威瑞外科医用制品有限公司 | Ultrasonic cutter head with clamping limb driving assembly |
| CN107441641A (en) * | 2017-08-11 | 2017-12-08 | 北京水木天蓬医疗技术有限公司 | A kind of protection device for ultrasound knife |
| CN107441641B (en) * | 2017-08-11 | 2023-09-08 | 北京水木天蓬医疗技术有限公司 | Protection device for ultrasonic knife |
| CN109350185A (en) * | 2018-12-09 | 2019-02-19 | 盛世润鼎(天津)精密机械有限公司 | A kind of clamp drive mechanism of ultrasound knife cutter head |
| CN112691239A (en) * | 2020-12-06 | 2021-04-23 | 复旦大学 | Aspirator capable of being combined with energy instrument for use |
| CN112691239B (en) * | 2020-12-06 | 2021-12-28 | 复旦大学 | Aspirator capable of being combined with energy instrument for use |
| CN112741673A (en) * | 2020-12-30 | 2021-05-04 | 常州柯柏电子科技有限公司 | Novel linkage mechanism for handheld ultrasonic cutter |
| CN115624371A (en) * | 2022-11-21 | 2023-01-20 | 厚凯(北京)医疗科技有限公司 | Ultrasonic blade holder, method for producing an ultrasonic blade holder, and ultrasonic blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |