CN201453336U - Small-sized scalpel - Google Patents
Small-sized scalpel Download PDFInfo
- Publication number
- CN201453336U CN201453336U CN2009200654325U CN200920065432U CN201453336U CN 201453336 U CN201453336 U CN 201453336U CN 2009200654325 U CN2009200654325 U CN 2009200654325U CN 200920065432 U CN200920065432 U CN 200920065432U CN 201453336 U CN201453336 U CN 201453336U
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- Prior art keywords
- scalpel
- cutting
- cutter hub
- ultrasonic driver
- piezoelectric ultrasonic
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Abstract
The utility model discloses a small-sized scalpel, relates to a small-sized duel-mode micro-nanometer cutting tool, and provides a small-sized scalpel capable of realizing micro-nanometer level cutting in high-frequency transverse and longitudinal modes. The small-sized scalpel is provided with a scalpel body, the top and bottom of the middle portion of the scalpel body are respectively provided with an upper piezoelectric ultrasonic driver and a lower piezoelectric ultrasonic driver, the upper piezoelectric ultrasonic driver and the lower piezoelectric ultrasonic driver are piezoelectric ceramic sheets with thickness ranging from 0.5mm to 2mm, the length of each piezoelectric ceramic sheet is 0.1-0.5mm longer than the width of the scalpel body, polarized directions of the upper piezoelectric ultrasonic driver and the lower piezoelectric ultrasonic driver are opposite, and an external power source is connected between the upper piezoelectric ultrasonic driver and the lower piezoelectric ultrasonic driver via a conducting wire. The small-sized scalpel has the advantages that 1, the scalpel is high in cutting precision, 2, the scalpel reduces suffering of patients in a maximization form, and 3, the scalpel realizes a duel-mode cutting process, wherein the longitudinal mode can realize skin longitudinal cutting and the transverse mode can realize cutting of biological tissues.
Description
Technical field
This utility model relates to a kind of small-sized double mode micro-nano cutting tool, especially relates to a kind of Small type operating knife that is applied to the biologic medical field.
Background technology
Existing Small type operating knife generally adopts manpower cutting, existing many relevant reports.
Notification number provides a kind of Small type operating knife for the utility model patent of CN2380187, and it includes handle of a knife, cervical region and cutter head, and it is no angular to it is characterized in that handle of a knife is flat side, and cervical region has the enhancing moulding, and cutter head is provided with blade.It has good hand touch in the operation technique, the order of accuarcy height, and knife bar intensity height, flexible, reduce tissue injury.Cutter head can be made different shapes as required, blade is provided with because of purposes, in order to finish various Minimally Invasive Surgerys, has widened the kind of closed operation apparatus, can obviously improve the quality and the curative effect of closed operation.It will more and more show important function at the edge of surgical dissolution and expectant treatment.
Publication number provides a kind of precision stab-incised fiber surgical knife for the utility application of CN17923, is made up of the needle body and the handle of a knife of band cutter, and handle of a knife is the flat shape of a hoof or ellipse, and cutter hub is cylindrical, and blade is recessed sword, and blade is recessed to the handle of a knife direction.Be applicable to the cut-out of fascia, ligament or tendon, and finger can more conveniently, rational be exerted oneself at Shi Shuzhong, thereby guarantee to execute the accuracy and the effectiveness of art, favourablely execute rationally firmly and blind looking under the state to micro organization's structure more effective cutting and peel off of pointing in the art process, replace the effect of scalpel, and good acupuncture effect has been arranged, improved operation safety, reduced patient's misery, increased and executed art effectiveness and overall aesthetics.
Notification number comprises little cambered blade for the utility model patent of CN201108477 provides a kind of neurosurgery Small type operating knife, it is characterized in that being fixed with elongate handle on little cambered blade.This utility model is simple in structure, and is easy to use, quick, the operation efficient height of cutting when neurosurgery is performed the operation in doing the cranium brain, and range of operation is wide.
Adopt the small surgical instruments of ultrasound-driven, because the size of cutter head all is at millimeter and micron order, so they all are to belong to Minimally Invasive Surgery.Compared with other Minimally Invasive Surgery method, as electrosurgery and laser surgery, the ultrasonic surgical instruments equipment needed thereby is more simple, and the damage that is caused is littler.Because ultrasonic surgical blade is to be accompanied by the dither of cutter head and to realize cutting, need not to apply bigger pressure.When mosquito when biting and drawing human or animal's blood, its suction pipe depends on supersonic vibration to enter skin surface, and the human or animal can not feel pain by mosquito bite and draw blood the time.In addition, ultrasonic surgical blade can be realized the hemostatic function by partial frictional heat.
The utility model content
The purpose of this utility model is to provide a kind of Small type operating knife of realizing the horizontal of other high frequency of micro/nano level and vertical pattern cutting.
The technical solution of the utility model is based on the principle of ultrasonic resonance.
This utility model is provided with cutter hub, be respectively equipped with piezoelectric supersonic driver up and down up and down at the cutter hub middle part, the piezoelectric supersonic driver is a piezoelectric ceramic piece up and down, the thickness of piezoelectric ceramic piece is 0.5～2mm, length is than the long 0.1～0.5mm of cutter hub width, the polarised direction of piezoelectric supersonic driver is opposite up and down, up and down between the piezoelectric supersonic driver by the lead external power supply; Cutter hub is a silicon chip, silicon chip upper and lower surface cvd nitride silicon thin film, the thickness of silicon chip is 0.2～1mm, the thickness of each layer silicon nitride film is 0.5～3 μ m, the nose part of cutter hub is inverted tubaeform, the point of a knife of nose part departs from the width of nose part center line 1/5～1/2 cutter hub, and the length of nose part is 0.1～2cm, and the bell-mouthed width of nose part is 0.1 μ m～1mm.
The point of a knife of nose part is provided with sawtooth.
During preparation, at first adopt low pressure chemical vapour deposition (CVD) (LPCVD) method, at silicon chip surface deposition one deck silicon nitride film, through overexposure, after reuse reactive ion etching method is removed the silicon nitride film that is exposed part, adopt dry etching or wet etching to remove corresponding silicon body, obtain cutter hub.Again 2 piezoelectric ceramic pieces are attached to two surfaces, cutter hub middle part respectively, obtain Small type operating knife.
Operation principle of the present utility model is: when a sinusoidal ac signal is input to piezoelectric ceramic actuator with suitable frequency and wave amplitude, resonance body takes place in cutter hub under it drives, and under suitable frequency, the point of a knife part produces the vertical and horizontal vibration respectively, wherein, extensional vibration can realize the cutting of skin, and oscillation crosswise can realize the cutting of biological tissue.If can observe just longitudinal resonance from experimental test, the efficient of cutting is very low, and after having added lateral resonance, can observe the Small type operating knife cutting speed and obviously accelerate.The lateral resonance amplitude generally is designed to 1/10～1/3 of longitudinal resonance amplitude.The double mode Small type operating knife that is used for micro-nano cutting that this utility model provides can be realized other cutting of high-precision micro/nano level, has application prospect in the biologic medical field.
The beneficial effects of the utility model are as follows: first cutting accuracy height, can realize other cutting of micro/nano level, and because cutting speed is micron per second or nanometer per second, so the damage that Small type operating knife caused is very little.It two is that cutting is accompanied by the dither of cutter head and realizes, therefore need not to apply bigger pressure, and in cutting process, Small type operating knife can be realized the hemostatic function by partial frictional heat, thereby the reduction patient's of maximizing misery.It three is that Small type operating knife has been realized double mode cutting process, and its vertical pattern can be realized vertical cutting of skin; And transverse mode can be realized the cutting of biological tissue.
Find through experiment, double modely can improve cutting efficiency greatly, make the Small type operating knife cutting enter the intravital speed of experimental article and obviously accelerate.It four is that the structure of Small type operating knife is easy to realize that material requested is piezoelectric ceramics and the base silicon that deposits silicon nitride film, can realize large batch of making.It five is stable working state of Small type operating knife, has only when frequency input signal meets the resonant frequency of device, could enter duty by driving element.And in the course of the work, input signal only needs easy operating is provided by the appropriate signal generator.It six is that the silicon materials that the Small type operating knife cutter hub is adopted have bio-compatibility, can not bring untoward reaction to surgical object.Therefore, utilize this utility model that human body or animal body are undergone surgery, can realize high-precision surgical cut process, and reduce patient's misery to greatest extent, have great practical value and feasibility.
Description of drawings
Fig. 1 is the structural representation of the double mode Small type operating knife of this utility model embodiment.
Fig. 2 is double mode Small type operating knife of this utility model embodiment and power supply connection diagram.
Fig. 3 is the structural representation of the double mode Small type operating knife of this utility model embodiment linear unicuspid structure.
Fig. 4 is the structural representation of the double mode Small type operating knife of this utility model embodiment linear broached-tooth design.
Fig. 5 is the structural representation of the double mode Small type operating knife of the tubaeform unicuspid structure of this utility model embodiment Gauss.
Fig. 6 is the structural representation of the double mode Small type operating knife of the tubaeform broached-tooth design of this utility model embodiment Gauss.
The specific embodiment
As illustrated in fig. 1 and 2, the double mode Small type operating knife that is used for micro-nano cutting is by 2 piezoelectric supersonic drivers 1 and cutter hub 2 are formed up and down, cutter hub 2 adopts the silicon base that deposits silicon nitride film to machine through the little manufacturing process of body silicon, and 2 piezoelectric supersonic drivers 1 are pasted on the upper and lower surface at cutter hub middle part respectively up and down.
This utility model is provided with cutter hub, be respectively equipped with piezoelectric supersonic driver up and down up and down at the cutter hub middle part, the piezoelectric supersonic driver is a piezoelectric ceramic piece up and down, the thickness of piezoelectric ceramic piece is 0.5～2mm, length is than the long 0.1～0.5mm of cutter hub width, the polarised direction of piezoelectric supersonic driver is opposite up and down, up and down between the piezoelectric supersonic driver by the lead external power supply; Cutter hub is a silicon chip, silicon chip upper and lower surface cvd nitride silicon thin film, the thickness of silicon chip is 0.2～1mm, the thickness of each layer silicon nitride film is 0.5～3 μ m, the nose part of cutter hub is inverted tubaeform, the point of a knife of nose part departs from the width of nose part center line 1/5～1/2 cutter hub, and the length of nose part is 0.1～2cm, and the bell-mouthed width of nose part is 0.1 μ m～1mm.
The point of a knife of nose part is provided with sawtooth.
As shown in Figure 3, the double mode Small type operating knife of linear unicuspid structure that is used for micro-nano cutting is made up of 2 piezoelectric supersonic drivers 1 and cutter hub 2 up and down, and cutter hub 2 is designed to linear unicuspid structure.
As shown in Figure 4, the double mode Small type operating knife of linear broached-tooth design that is used for micro-nano cutting is made up of 2 piezoelectric supersonic drivers 1 and cutter hub 2 up and down, and cutter hub 2 is designed to the linear broached-tooth design.
As shown in Figure 5, the double mode Small type operating knife of the tubaeform unicuspid structure of Gauss that is used for micro-nano cutting is made up of 2 piezoelectric supersonic drivers 1 and cutter hub 2 up and down, and cutter hub 2 is designed to the tubaeform unicuspid structure of Gauss.
As shown in Figure 6, the double mode Small type operating knife of the tubaeform broached-tooth design of Gauss that is used for micro-nano cutting is made up of 2 piezoelectric supersonic drivers 1 and cutter hub 2 up and down, and cutter hub 2 is designed to the tubaeform broached-tooth design of Gauss.
Claims (2)
1. Small type operating knife, it is characterized in that being provided with cutter hub, be respectively equipped with piezoelectric supersonic driver up and down up and down at the cutter hub middle part, the piezoelectric supersonic driver is a piezoelectric ceramic piece up and down, the thickness of piezoelectric ceramic piece is 0.5～2mm, length is than the long 0.1～0.5mm of cutter hub width, and the polarised direction of piezoelectric supersonic driver is opposite up and down, up and down between the piezoelectric supersonic driver by the lead external power supply; Cutter hub is a silicon chip, silicon chip upper and lower surface cvd nitride silicon thin film, the thickness of silicon chip is 0.2～1mm, the thickness of each layer silicon nitride film is 0.5～3 μ m, the nose part of cutter hub is inverted tubaeform, the point of a knife of nose part departs from the width of nose part center line 1/5～1/2 cutter hub, and the length of nose part is 0.1～2cm, and the bell-mouthed width of nose part is 0.1 μ m～1mm.
2. a kind of Small type operating knife as claimed in claim 1 is characterized in that the point of a knife of nose part is provided with sawtooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200654325U CN201453336U (en) | 2009-07-31 | 2009-07-31 | Small-sized scalpel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200654325U CN201453336U (en) | 2009-07-31 | 2009-07-31 | Small-sized scalpel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201453336U true CN201453336U (en) | 2010-05-12 |
Family
ID=42380677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200654325U Expired - Fee Related CN201453336U (en) | 2009-07-31 | 2009-07-31 | Small-sized scalpel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201453336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103110447A (en) * | 2012-10-01 | 2013-05-22 | 北京水木天蓬医疗技术有限公司 | Ultrasonic cutting tool and application method thereof |
-
2009
- 2009-07-31 CN CN2009200654325U patent/CN201453336U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103110447A (en) * | 2012-10-01 | 2013-05-22 | 北京水木天蓬医疗技术有限公司 | Ultrasonic cutting tool and application method thereof |
| CN103110447B (en) * | 2012-10-01 | 2016-12-07 | 北京水木天蓬医疗技术有限公司 | A kind of ultrasonic cut instrument and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Xueyi Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Li Xueyi Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20100731 |