CN114618924A

CN114618924A - Ultrasonic knife machining system and method

Info

Publication number: CN114618924A
Application number: CN202210061520.8A
Authority: CN
Inventors: 申思
Original assignee: Hocer Tianjin Medical Technology Co ltd
Current assignee: Hocer Tianjin Medical Technology Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-06-14

Abstract

The application relates to a processing system and a processing method of an ultrasonic knife. The processing system comprises a centering machine, and the centering machine is used for cutting a material to be processed to obtain a straight rod-shaped ultrasonic knife bar; bender, comprising: a cutter bar bracket for supporting the cutter bar; the lower die is positioned on one side of the cutter bar bracket; the mould goes up, is located the top of lower mould, go up the mould with two relative terminal surfaces of lower mould all are the bending, it can be relative to go up the mould the lower mould reciprocates, in order to right the tip of cutter arbor is buckled. This application is through walking the heart machine and treating the processing material and carry out cutting process and become the cutter arbor that is straight rod-like, and the processing of buckling is carried out to the tip that the cutter arbor need be bent to the rethread bender, has improved the machining efficiency of supersound sword cutter arbor greatly, has saved the processing material.

Description

Ultrasonic knife machining system and method

Technical Field

The application relates to the technical field of medical instrument processing, in particular to a processing system and a processing method of an ultrasonic knife.

Background

An ultrasonic scalpel (also called an ultrasonic scalpel) is mainly used for cutting biological tissues, closing blood vessels and the like. The ultrasonic knife can be divided into a linear knife head and a bent knife head according to the shape of the knife head.

When dealing with the cutting of some special angles, the ultrasonic knife of the linear cutter head often can not find a proper angle to operate, thereby influencing the operation effect. The problem is solved to the appearance of bending tool bit, and the supersound cutter of bending tool bit has higher operating flexibility, can be more accurate cut focus position, very big improvement the success rate of operation.

At present, an ultrasonic knife with a bent knife head is machined and molded through a machining center, and the machining mode has the problems of long machining time and waste of machining materials.

Disclosure of Invention

An object of the embodiment of the application is to provide a processing system and a processing method for an ultrasonic knife, which can solve the problems of long processing time and waste of processing materials in the existing processing technology for the ultrasonic knife.

The method is realized by the following technical scheme:

according to a first aspect of the present application, there is provided an ultrasonic blade machining system, the system comprising: the core-moving machine is used for cutting a material to be processed to obtain a straight rod-shaped ultrasonic knife bar; bender, comprising: a cutter bar bracket for supporting the cutter bar; the lower die is positioned on one side of the cutter bar bracket; the upper die is located above the lower die, the upper die and two opposite end faces of the lower die are both in a bent shape, and the upper die can move up and down relative to the lower die so as to bend the end part of the cutter bar.

In an embodiment of the present application, the bending machine further comprises: and the positioning device is arranged on the cutter bar bracket to position the cutter bar.

In one embodiment of the present application, the positioning device is a pin.

In one embodiment of the present application, the holder bracket is provided with a positioning groove, and the pin is configured to pass through a through hole provided in the holder and be placed in the positioning groove, thereby positioning the holder.

In one embodiment of the present application, the holder bracket is provided with a receiving groove of the holder; the bending machine further comprises: and the limiting block is positioned on the cutter bar bracket and positioned on one side of the accommodating groove so as to limit the cutter bar in the accommodating groove.

In one embodiment of the present application, the material to be processed is a cylindrical material, and the diameter of the cylindrical material is 5-6 mm.

According to a second aspect of the present application, there is provided a method of machining an ultrasonic blade, including: cutting a material to be processed by using a centering machine to obtain a straight-rod-shaped ultrasonic knife bar; the cutter bar is supported on a cutter bar bracket of a bending machine, the bending machine comprises a lower die and an upper die, the lower die is positioned on one side of the cutter bar bracket, the upper die is positioned above the lower die, and two opposite end faces of the upper die and the lower die are both in a bent shape; and controlling the upper die to move up and down relative to the lower die so as to bend the end part of the cutter bar.

In one embodiment of the present application, the material to be processed is a columnar material, and the diameter of the columnar material is 5-6 mm.

In an embodiment of the present application, before the controlling the upper mold to move up and down with respect to the lower mold, the processing method further includes: and positioning the cutter bar by using a positioning device of the bending machine.

In an embodiment of the present application, the positioning device is a pin, and positioning the tool bar by using the positioning device of the bending machine includes: penetrating the pin through a through hole of the cutter bar; and placing the cutter bar in a positioning groove of the cutter bar bracket so as to position the cutter bar.

Machining an ultrasonic blade having a curved portion directly through a machining center requires using a raw material capable of enveloping the ultrasonic blade and repeatedly cutting the raw material. The embodiment of the application provides a machining method for replacing a machined ultrasonic knife bar by a bending method. Cutting a material to be processed by a centering machine to form a straight rod-shaped ultrasonic cutter bar, and then bending the end part of the ultrasonic cutter bar to be bent by a bending machine. The processing mode avoids the problems of long processing time and waste of processing materials caused by a manufacturing process of repeated cutting. The processing technology of the ultrasonic knife cutter bar provided by the embodiment of the application can be used for rapidly and massively finishing the processing of the end part of the ultrasonic knife which needs to be bent, greatly improves the processing efficiency and saves the processing materials.

Drawings

Fig. 1 is a schematic structural diagram of an ultrasonic blade system according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a processing system of an ultrasonic blade according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a partial structure of bending machine 220 in fig. 2 according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a partial structure of bending machine 220 in fig. 2 according to another embodiment of the present application.

Fig. 5 is a schematic structural diagram of a processing system of an ultrasonic blade according to another embodiment of the present application.

Fig. 6 is a schematic block diagram of a processing method of an ultrasonic blade according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic structural diagram of an ultrasonic blade system according to an embodiment of the present application. As shown in fig. 1, the ultrasonic blade system may be comprised of four parts, which may include, for example: an ultrasonic mainframe 110, a foot switch 120, a transducer 130, and an ultrasonic blade holder 140.

The ultrasound host 110 is a high frequency current generator, which is mainly used to provide a stable ultrasound frequency electrical signal.

The foot switch 120 has two pedals that respectively activate the minimum and maximum power. Correspondingly, there are also two buttons on the ultrasonic blade shaft 130 that activate the minimum and maximum power, wherein the maximum power corresponds to the function primarily for tissue cutting operations and the minimum power corresponds to the function primarily for hemostasis operations.

The transducer 130 can convert the ultrasonic frequency electrical signal output by the ultrasonic host 110 into mechanical power (i.e. ultrasonic signal, higher than 20kHz), and the transducer 130 is equivalent to an energy conversion device, and the performance of the transducer 130 is directly related to the effects of cutting hemostasis and blood vessel coagulation.

The ultrasonic knife bar 140 may include a knife head 141 and a connecting rod 142, wherein the connecting rod 142 transmits the mechanical vibration output by the transducer 130 to the knife head 141 to realize the vibration of the ultrasonic knife, so as to perform operations of hemostasis cutting, separation, coagulation and the like on human soft tissue through the vibration of the ultrasonic knife.

The ultrasonic blade has various types of blades, and can be classified into a linear blade and a curved blade, for example, according to the shape of the blade. Cutting tip 141 in fig. 1 is a curved cutting tip. In practice, the ultrasonic knife may be operated at various angles, for example, when the ultrasonic knife is used for cutting at some special angles, such as the side-back cutting of organs, and at this time, the linear knife head often cannot find the proper angle to operate, or in this case, the linear knife head affects the cutting effect. Compare in sharp tool bit, the curved tool bit just has higher flexibility of operation for the operator can be more accurate cut the focus position, the success rate of improvement operation that can be very big.

At present, the competitive barrier of the ultrasonic knife is mainly the material and the processing technology of the knife head. The main material of the cutter head is titanium alloy, which is a material with a not particularly high capacity. Secondly, the processing technology of the ultrasonic knife is complex, and the difference of the processing technology of the ultrasonic knife is directly related to the output frequency of the ultrasonic knife equipment, thereby influencing the clinical cutting effect. If the processing material and the processing technology are not too much, the service life of the ultrasonic knife can be seriously influenced, and meanwhile, an unstable condition can occur when the ultrasonic knife is used, so that the related work is seriously influenced.

The processing technique of the ultrasonic knife is complex, especially for the ultrasonic knife with the bent knife head. The existing processing method usually adopts direct processing and forming on a machine tool, for example, processing and forming of an ultrasonic knife are carried out by using a processing center. Because the quality of the cutter head of the ultrasonic knife is directly related to the service life and the service performance of the ultrasonic knife, the requirement of the ultrasonic knife on the machining precision is relatively high.

As an example, the machining of the ultrasonic blade can be performed by a high-precision machining center, but the high-precision machining center requires repeated cutting for machining the bent portion of the ultrasonic blade to mold the bent portion, and thus has a problem of a long machining time. In addition, the high-precision machining center requires that the diameter of the material to be machined is large, and if the diameter needs to reach 10mm, a relatively large amount of machining material is wasted in the machining process of the ultrasonic knife.

In order to solve the existing problems, the embodiment of the application provides a processing system and a method of an ultrasonic scalpel, wherein the processing system comprises two parts, namely a core walking machine and a bending machine. Firstly, a material to be processed is cut into a straight ultrasonic knife bar by a centering machine, and then the straight ultrasonic knife bar is bent by a bending machine, so that the ultrasonic knife of the bent knife head is formed. Because the bending machine can achieve one-step forming for bending the ultrasonic cutter bar, compared with the processing of repeatedly cutting the bent part in a high-precision processing center, the processing efficiency is greatly improved. In addition, the diameter requirement of the material to be processed by the center-moving machine is smaller than that of the high-precision processing center, so that a large amount of waste of the processing material is avoided.

Having described the general principles of the present application, various non-limiting embodiments of the present application will now be described with reference to the accompanying drawings.

Fig. 2 is a schematic structural diagram of a processing system for an ultrasonic blade according to an embodiment of the present application. As shown in fig. 2, the ultrasonic blade machining system may be composed of two parts, a core walking machine 210 and a bending machine 220. Bending machine 220 may include, for example, a knife bar bracket 221, an upper die 222, and a lower die 223.

Specifically, the centering machine 210 is mainly used for cutting a material to be processed to obtain a straight-bar-shaped ultrasonic knife bar. The centering machine 210 is more suitable for machining smaller parts than a high-precision machining center. As an example, the material to be processed may be a cylindrical material, for example, the diameter of the cylindrical material is less required by the core walking machine 210, and may be 5-6mm, for example. Compared with the machining center which is 10mm in diameter requirement of the material to be machined, the center-moving machine 210 greatly saves the machining material in the machining process of the ultrasonic knife bar, and avoids the waste of excessive materials.

The center moving machine 210 is only responsible for processing the straight rod part of the cutter bar in the processing process, and the bending operation is not required to be completed, so that the processing efficiency can be obviously improved, and the center moving machine has the characteristics of low rejection rate and batch processing.

After the machining of the straight shank portion of the arbor is completed by the centering machine 210, the bent portion thereof is completed by the bending machine 220. As shown in fig. 2, the right side is a schematic structural diagram of the bending machine 220, and the structure and the processing procedure of the bending machine 220 will be described in detail below by taking fig. 2 as an example.

The knife bar bracket 221 in the bending machine 220 mainly plays a role of accommodating and supporting the ultrasonic knife bar 224, that is, the ultrasonic knife bar 224 is placed on the knife bar bracket 221 to complete the bending process.

The lower die 222 and the upper die 223 are disposed opposite to each other, and are main components for bending the ultrasonic blade bar 224. The lower die 222 is located on one side of the holder bracket 221, for example, in fig. 2, the lower die 222 is located on the left side of the holder bracket 221. And an upper mold 223 positioned above the lower mold 222. The opposing end surfaces of the lower die 222 and the upper die 223 are curved, and the upper die 223 is movable up and down with respect to the lower die 222. Since the opposite end surfaces of the upper and lower dies are curved, when the upper die 223 moves downward relative to the lower die 222, the end of the ultrasonic blade bar 224 can be bent.

Optionally, fig. 3 is a schematic view of a partial structure of bending machine 220 according to an embodiment of the present application. As can be seen from fig. 3, the end surface of the lower die 222 is curved, and the portion of the ultrasonic blade bar 224 that needs to be bent can abut against the lower die 222. In fig. 3, the ultrasonic blade bar 224 is bent, and in the unbent state, the ultrasonic blade bar having a straight bar shape abuts against the lower die 222.

Fig. 4 is a schematic diagram illustrating a partial structure of bending machine 220 according to still another embodiment of the present application. As shown in fig. 4, the upper die 223 is moved downward in the arrow direction, thereby press-bending the portion of the ultrasonic blade bar 224 abutting on the lower die 222. As an example, the convex portion of the upper mold 223 is in contact with the concave portion of the lower mold 223, and the ultrasonic blade bar 224 is bent and formed along the bent shape of the end surface of the lower mold 222 and the end surface of the upper mold 223 by pressure.

Alternatively, the upper die 223 may include a pressing block for performing press bending of the portion of the ultrasonic blade holder 224 that needs to be bent.

Alternatively, the bending of the end of the ultrasonic blade bar 224 may be completed by moving the upper die 223 downward once with respect to the lower die 222. Obviously, compared to the machining center that needs to repeatedly cut the bent portion of the ultrasonic blade bar, the bending machine 220 greatly improves the machining efficiency of the bent portion of the ultrasonic blade bar 224. Meanwhile, the bending mode of the bending machine 220 does not need to cut the material of the ultrasonic cutter bar, so that secondary waste of the processing material is avoided.

To sum up, this application embodiment provides and accomplishes the system of processing of supersound sword jointly through walking heart machine and bender cooperation, compares in the current mode of processing to the supersound sword of bending tool bit, has machining efficiency height, saves the characteristics of processing material.

As an embodiment, fig. 5 is a schematic structural diagram of bending machine 220 according to another embodiment of the present application.

Bending machine 220 shown in fig. 5 comprises a tool bar bracket 221, a die shank 331, a lower die 332, an upper die 333, a positioning device 334, a receiving groove 335, a limiting block 336, an ultrasonic tool bar 224, and the like.

The lower mold 332 may be, for example, the lower mold 222 in fig. 2, or may include a plurality of lower molds, for example, the lower mold 332 shown in fig. 5 includes two lower mold plates; the upper mold 333 may be, for example, the upper mold 223 in fig. 2, or may include a plurality of upper molds, and for example, fig. 5 shows that the upper mold 333 includes two upper molds.

Optionally, bending machine 220 may include a die shank 331 for controlling the up and down movement of the upper die 333 relative to the lower die 332.

Optionally, bender 220 may include receiving groove 334. A receiving slot 334 may be provided on the blade holder bracket 221, primarily for receiving the ultrasonic blade 224, i.e. the ultrasonic blade 224 is placed in the receiving slot 337 during the bending process.

As an embodiment, the knife bar bracket 221 may be provided with a limiting block 335, and the limiting block 335 may be located on one side of the receiving groove 334, for example, on a side away from the lower die 332, and is used for limiting the ultrasonic knife bar 335 placed in the receiving groove 334 so that it will not be displaced during the bending process.

Optionally, bending machine 220 may further include positioning device 336. A positioning device 336 may be disposed on the blade holder bracket 221 for fixing and positioning the ultrasonic blade 224.

As one example, the positioning device 336 may be a pin. Positioning device 336 may, for example, be disposed in a direction perpendicular to receiving slot 334 to provide a more secure positioning of ultrasonic blade bar 224.

Optionally, in some embodiments, the holder bracket 221 may be provided with a positioning slot 337, and a pin (i.e., a positioning device) 336 is inserted through a through hole provided in the holder and placed in the positioning slot 337, thereby more securely positioning the holder 221.

The processing system of the ultrasonic blade provided by the present application is described in detail above with reference to fig. 2 to 5, and the method embodiment provided by the present application is described in detail below with reference to fig. 6. It is to be understood that the description of the method embodiments corresponds to the description of the system embodiments above, and therefore, reference may be made to the embodiments of the preceding system parts for parts which are not described in detail.

Fig. 6 is a schematic block diagram of a processing method of an ultrasonic blade according to an embodiment of the present application. It should be understood that the method 600 of ultrasonic blade machining illustrated in fig. 6 is merely an example, and that the method 600 of embodiments of the present application may include other steps or processes. For example, the method 600 may be implemented by the apparatus shown in fig. 2-5. Referring now to fig. 2 and 5, a method 600 for machining an ultrasonic blade will be described.

And step S610, cutting the material to be processed by using a centering machine to obtain a straight rod-shaped ultrasonic knife bar.

As shown in fig. 2, the left side centering machine 210 performs cutting processing on the material to be processed to obtain an ultrasonic knife bar of the straight rod, and then transmits the ultrasonic knife bar of the straight rod to the bending machine 220 for further processing and forming.

As an embodiment, after the machining of the straight rod part of the ultrasonic knife is completed by the heart-walking machine, in order to meet the requirement of higher precision, the ultrasonic knife bar after the cutting by the heart-walking machine can be subjected to secondary machining by the machining center, so as to achieve more precise cutting and forming.

And S620, supporting the cutter bar on a cutter bar bracket of a bending machine, wherein the bending machine comprises a lower die and an upper die, the lower die is positioned on one side of the cutter bar bracket, the upper die is positioned above the lower die, and two opposite end faces of the upper die and the lower die are both in a bent shape.

As shown in fig. 5, the ultrasonic blade bar of the straight rod is placed in the receiving groove 334 of the blade bar bracket 221 of the bending machine 220, and is positioned by the limiting block 335 and the positioning device 336, so that the part of the ultrasonic blade bar to be bent is just abutted against the lower die 332 and is fixed.

And step S630, controlling the upper die to move up and down relative to the lower die so as to bend the end part of the cutter bar.

The upper die 333 is controlled to move up and down by the die handle 331, and the ultrasonic blade bar abutting against the lower die 333 is bent along the curved shape of the end faces of the upper die 333 and the lower die 332, thereby completing the machining of the bent portion of the ultrasonic blade bar.

Optionally, the material to be processed is a columnar material, and the diameter of the columnar material is 5-6 mm.

Optionally, before the controlling the upper die to move up and down relative to the lower die, the processing method further includes: and positioning the cutter bar by using a positioning device of the bending machine.

Alternatively, the locating means may be a pin. The method comprises the following steps: utilize the positioner of bender to fix a position the cutter arbor, can include: the pin passes through the through hole of the cutter bar; and placing the cutter bar in the positioning groove of the cutter bar bracket so as to position the cutter bar.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A system for machining an ultrasonic blade, comprising:

the core-moving machine is used for cutting a material to be processed to obtain a straight-rod-shaped ultrasonic knife bar;

bender, comprising:

a cutter bar bracket for supporting the cutter bar;

the lower die is positioned on one side of the cutter bar bracket;

the upper die is located above the lower die, the upper die and two opposite end faces of the lower die are both in a bent shape, and the upper die can move up and down relative to the lower die so as to bend the end part of the cutter bar.

2. The machining system according to claim 1, wherein the bending machine further comprises:

and the positioning device is arranged on the cutter bar bracket to position the cutter bar.

3. The tooling system of claim 2 wherein the positioning device is a pin.

4. The tooling system of claim 3, wherein the holder bracket is provided with a detent, and the pin is configured to pass through a through hole provided in the holder and be positioned in the detent to thereby position the holder.

5. The machining system of claim 1, wherein the tool holder bracket is provided with a receiving slot for the tool holder;

the bending machine further comprises:

and the limiting block is positioned on the cutter bar bracket and positioned on one side of the accommodating groove so as to limit the cutter bar in the accommodating groove.

6. The processing system of claim 1, wherein the material to be processed is a cylindrical material, and the cylindrical material has a diameter of 5-6 mm.

7. A machining method of an ultrasonic knife is characterized by comprising the following steps:

cutting a material to be processed by using a core-moving machine to obtain a straight rod-shaped ultrasonic knife bar;

the cutter bar is supported on a cutter bar bracket of a bending machine, the bending machine comprises a lower die and an upper die, the lower die is positioned on one side of the cutter bar bracket, the upper die is positioned above the lower die, and two opposite end faces of the upper die and the lower die are both in a bent shape;

and controlling the upper die to move up and down relative to the lower die so as to bend the end part of the cutter bar.

8. The machining method according to claim 7, wherein the material to be machined is a columnar material, and the diameter of the columnar material is 5 to 6 mm.

9. The method of machining according to claim 8, wherein before the controlling the upper die to move up and down with respect to the lower die, the method of machining further comprises:

and positioning the cutter bar by using a positioning device of the bending machine.

10. The machining method according to claim 9, wherein the positioning device is a pin, and the positioning of the knife bar by the positioning device of the bending machine comprises:

penetrating the pin through a through hole of the cutter bar; and

and placing the cutter bar in a positioning groove of the cutter bar bracket so as to position the cutter bar.