CN201260686Y - Ultrasound knife head device with balancing characteristics - Google Patents
Ultrasound knife head device with balancing characteristics Download PDFInfo
- Publication number
- CN201260686Y CN201260686Y CNU2008201509790U CN200820150979U CN201260686Y CN 201260686 Y CN201260686 Y CN 201260686Y CN U2008201509790 U CNU2008201509790 U CN U2008201509790U CN 200820150979 U CN200820150979 U CN 200820150979U CN 201260686 Y CN201260686 Y CN 201260686Y
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- cutter head
- knife
- ultrasound knife
- knife head
- ultrasonic
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Abstract
The utility model relates to an ultrasonic knife head device with a balance characteristic, which comprises an ultrasonic conduit which can spread ultrasonic energy and an end action device (a knife head) connected behind the ultrasonic conduit, wherein the knife head comprises an unsymmetrical structure which can locally reduce knife materials, locally change the shape of the knife head, locally increase knife head materials, and the like, and the gravity center of the knife head which comprises the bent and unsymmetrical structure, and the like is in an axial line of a knife rod to improve the balance of the knife head when used and increase the safety and the service life.
Description
Technical field
This utility model belongs to the ultrasonic medical instrument field, relates to a kind of ultrasonic surgical instruments, especially with the ultrasound knife knife head device of balance characteristics.
Background technology
At present, ultransonic application is increasingly extensive, and many industries all have and relate to, as ultra-sonic welded, ultrasonic emulsification, ultrasonic nondestructive test, ultrasonic image and ultrasonic cut etc.Medically, ultrasonic also have a suitable application, is exactly wherein a kind of such as ultrasound knife, and it utilizes the altofrequency vibration of cutter head to cut and organize, and has hemostatic function preferably.
The application of ultrasound knife in surgical operation is universal day by day, driving source that system carries or generator produce the high-frequency ac signal of telecommunication, it vertically is main mechanical vibration that ultrasonic transducer utilizes piezoelectric or mangneto compression material to convert thereof into, and will vibrate by ultrasonic amplifier and to amplify the back and be delivered to end effector and functional part (cutter head) thereof by ultrasonic waveguide, tissue is cut.In design, need to guarantee that these vibrating mass natural frequencies are close, could once per revolution vibration during work, promptly resonate, most effective to obtain.Under this longitudinal ultrasonic ripple vibration, the overall structure of ultrasound knife needs symmetry, and cutter head could keep balance during work, is beneficial to cutting and hemostatic function and realizes.But the ultrasound knife cutter head in the practical application for the consideration of operative connection, is often made various dissymmetrical structures such as bending, makes cutter head in use unbalance, influences its function and service life.
Figure 1 shows that the knife bar part of existing ultrasound knife product; comprise ultrasonic waveguide 11 and end effector 12 (cutter head) two parts; 13 is the position of centre of gravity of this bending cutter head; because the dissymmetrical structure of cutter head; for example Y direction bending; cutter head center of gravity 13 will depart from vertical axle center, thereby causes terminal X, the Y vibration skew of both direction at least that has usually, and this side-play amount and the cutter head centre-of gravity shift longitudinal axis are directly proportional.The non axial vibration side-play amount that the cutter head imbalance is caused, it is ultrasonic vibration, not only reduced the efficient of ultrasound knife, simultaneously also can reflected back ultrasound knife knife bar, cause it impaired easily, cutter head is also excessive and cracked because of the unbalance and non axial side-play amount of frequency easily, thereby may influence the life-span and the safety in utilization of ultrasound knife.
In general, comparatively ideal situation is that non axial side-play amount can not be greater than 15% (being the non axial amplitude and the ratio percent of axial amplitude), preferably below 5%.Obviously, existing ultrasound knife cutter head is because of adopting dissymmetrical structures such as bending, non axial side-play amount is generally 15% even higher, cutter head in use is easy to unbalance and damages, the method of loss of weight (reducing the cross section) reached equilibrated purpose when once having by change cutter head shape or employing dissymmetrical structure, but loss of weight can weaken the intensity of cutter head, changes the function that the cutter head shape can influence its use again, all is not effective method.
The utility model content
The purpose of this utility model is to provide a kind of ultrasound knife knife head device with balance characteristics, realizes the balance of ultrasound knife knife bar, improves its service life and safety.
For reaching above purpose, solution of the present utility model is:
A kind of ultrasound knife knife head device with balance characteristics, the ultrasonic waveguide that it comprises propagate ultrasonic energy is connected the end effector (cutter head) after the ultrasonic waveguide, and this cutter head contains dissymmetrical structure, and its center of gravity is on the axis of knife bar.
Further, this dissymmetrical structure contains a sweep, and then balanced measure is the bending of a counter curvature.
The bending of this counter curvature is arranged between ultrasonic waveguide and the cutter head, and the center of gravity that makes cutter head makes non axial offset component below 5% near axis.
This dissymmetrical structure contains sweep, and then balanced measure is for to establish a hole at the cutter head end.
This hole is extended internally by the end of cutter head end, and the center of gravity that makes cutter head makes non axial offset component below 5% near axis.
This dissymmetrical structure contains sweep, then balanced measure be one with cutter head elbow inclined plane in the same way.
This inclined plane is provided with between ultrasonic waveguide and the cutter head, and the center of gravity that makes cutter head makes non axial offset component below 5% near axis.
This utility model is a kind of ultrasound knife knife head device with balance characteristics, is a kind of in order to realize uneven equilibrated method of crooked cutter head of ultrasound knife and device specifically.In this utility model, the ultrasound knife cutter head end of unbalanced construction or the cutter head position that is connected with ultrasonic waveguide has the bascule of non-functional, this non-functional balance characteristics can be removed tool tip material, local cutter head shape, the local tool tip material that increases of changing for the part, in order to realize the balance of ultrasound knife cutter head, and need not process the shape that changes the cutter head functional part, can also strengthen the inner pressure resistant ability of cutter head simultaneously.
Owing to adopted above technical method, the utlity model has following advantage:
The ultrasound knife knife head device that this utility model relates to, it has the non-functional balance characteristics, does not need to change the shape of cutter head functional part, has guaranteed cutter head balance in use, strengthens the anti-adaptability to changes in inside of cutter head, prolonged it service life and safety.
Description of drawings
Fig. 1 for existing ultrasound knife product with uneven knife bar device;
Fig. 2 is the ultrasound knife knife bar device of this utility model embodiment tail end band borehole balance characteristics;
Fig. 3 is the ultrasound knife knife bar device of band contraflexure balance characteristics in the middle of this utility model embodiment;
Fig. 4 is the ultrasound knife knife bar device of band inclined plane balance characteristics in the middle of this utility model embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing illustrated embodiment this utility model is further described.
As Fig. 2-shown in Figure 4, ultrasound knife knife bar device of the present utility model comprises ultrasonic waveguide 1 and cutter head (end effector) 2, cutter head position of centre of gravity 3, its balance characteristics can be removed tool tip material by the part, the local methods such as cutter head shape, local increase tool tip material that change realize, make the center of gravity of crooked cutter head adjust on the axis of knife bar.
As shown in Figure 2, in this utility model, can realize the balance of cutter head in the mode of cutter head tail end increase non-functional balance characteristics, this non-functional balance characteristics is to set up a hole 4 on the end effector 2 of the afterbody of ultrasound knife cutter head, and it is used for the balance cutter head owing to the imbalance that causes to bending at Y.This hole 4 is inwardly pierced by the end of end effector 2, and the degree of depth of boring depends on this amount of unbalance, and the quality and the curvature of cutter head sweep, until near or reach equilibrium point till, this process can realize by the finite element software simulation.This utility model has guaranteed that the function shape and the intensity of cutter head is unaffected in the balance cutter head.
As shown in Figure 3, this utility model also can be provided with a bit of between ultrasonic waveguide 1 and cutter head 2 and the reverse sweep 5 of cutter head 2 elbows.The curvature and the length of the curvature of the sweep of this non-functional and length and cutter head are closely related, and concrete calculating can realize by simulation on the finite element software.
As shown in Figure 4, this utility model can also be provided with a bit of between ultrasonic waveguide 1 and cutter head 2 and cutter head 2 elbows sloping portion 6 in the same way.The curvature and the length of the angle of the sloping portion of this non-functional and length and cutter head are closely related, and concrete calculating can realize by simulation on the finite element software.
Above embodiment is just in order to say something, but be not limited to this, according to the difference of understanding a lot of extension measure and method can also be arranged, such as, in some cases, can adopt the method that has more a block of material to realize the balance of cutter head at cutter head and ultrasonic waveguide junction, perhaps above several combination not just be enumerated one by one at this.
If it is proper that above measure is used, can control non axial vibration side-play amount substantially below 5%.This non-functional balance characteristics can just be processed when making knife bar simultaneously, and this need just take into account the equilibrated situation of apparatus when design.
The above-mentioned description to embodiment is can understand and use this utility model for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, this utility model is not limited to the foregoing description, and those skilled in the art should be within protection domain of the present utility model for improvement and modification that this utility model is made according to announcement of the present utility model.
Claims (7)
1, a kind of ultrasound knife knife head device with balance characteristics, the ultrasonic waveguide that it comprises propagate ultrasonic energy is connected the cutter head after the ultrasonic waveguide, and it is characterized in that: this cutter head contains dissymmetrical structure, and its center of gravity is on the axis of knife bar.
2, the ultrasound knife knife head device of band balance characteristics according to claim 1, it is characterized in that: this dissymmetrical structure contains sweep, and then balanced measure is a curvature opposite curvature.
3, the ultrasound knife knife head device of band balance characteristics according to claim 2 is characterized in that: this curvature opposite curvature is arranged between ultrasonic waveguide and the cutter head, and the center of gravity that makes cutter head makes non axial offset component below 5% near axis.
4, the ultrasound knife knife head device of band balance characteristics according to claim 1, it is characterized in that: this dissymmetrical structure contains sweep, and then balanced measure is for to establish a hole at the cutter head end.
5, the ultrasound knife knife head device of band balance characteristics according to claim 4, it is characterized in that: this hole is extended internally by the end of cutter head end, and the center of gravity that makes cutter head makes non axial offset component below 5% near axis.
6, the ultrasound knife knife head device of band balance characteristics according to claim 1, it is characterized in that: this dissymmetrical structure contains sweep, then balanced measure be one with cutter head elbow inclined plane in the same way.
7, the ultrasound knife knife head device of band balance characteristics according to claim 6, it is characterized in that: this inclined plane is provided with between ultrasonic waveguide and the cutter head, and the center of gravity that makes cutter head makes non axial offset component below 5% near axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201509790U CN201260686Y (en) | 2008-07-18 | 2008-07-18 | Ultrasound knife head device with balancing characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201509790U CN201260686Y (en) | 2008-07-18 | 2008-07-18 | Ultrasound knife head device with balancing characteristics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201260686Y true CN201260686Y (en) | 2009-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201509790U Expired - Lifetime CN201260686Y (en) | 2008-07-18 | 2008-07-18 | Ultrasound knife head device with balancing characteristics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201260686Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2473131A4 (en) * | 2010-11-09 | 2016-08-24 | Genepro Systems Inc | Orthodontic debonding tool, tool insert and method for removing orthodontic brackets |
| WO2019076086A1 (en) * | 2017-10-19 | 2019-04-25 | 以诺康医疗科技（苏州）有限公司 | Ultrasonic scalpel blade, scalpel handle, and ultrasonic scalpel |
| US10398463B2 (en) | 2013-06-28 | 2019-09-03 | Misonix Incorporated | Ultrasonic instrument and method for manufacturing same |
| CN113662628A (en) * | 2021-07-08 | 2021-11-19 | 天津越安医疗科技有限公司 | Cutter head device with energy gathering characteristic and ultrasonic surgical instrument |
| CN114431920A (en) * | 2022-01-27 | 2022-05-06 | 以诺康医疗科技（苏州）有限公司 | Ultrasonic knife and cutter head with striking function |
-
2008
- 2008-07-18 CN CNU2008201509790U patent/CN201260686Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2473131A4 (en) * | 2010-11-09 | 2016-08-24 | Genepro Systems Inc | Orthodontic debonding tool, tool insert and method for removing orthodontic brackets |
| US10398463B2 (en) | 2013-06-28 | 2019-09-03 | Misonix Incorporated | Ultrasonic instrument and method for manufacturing same |
| WO2019076086A1 (en) * | 2017-10-19 | 2019-04-25 | 以诺康医疗科技（苏州）有限公司 | Ultrasonic scalpel blade, scalpel handle, and ultrasonic scalpel |
| US11571235B2 (en) | 2017-10-19 | 2023-02-07 | Innolcon Medical Technology (Suzhou) Co., Ltd. | Ultrasonic surgical blade, waveguide and ultrasonic scalpel thereof |
| CN113662628A (en) * | 2021-07-08 | 2021-11-19 | 天津越安医疗科技有限公司 | Cutter head device with energy gathering characteristic and ultrasonic surgical instrument |
| CN114431920A (en) * | 2022-01-27 | 2022-05-06 | 以诺康医疗科技（苏州）有限公司 | Ultrasonic knife and cutter head with striking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090624 |