CN209499831U - For ultrasonic surgical systems without serrated knife - Google Patents
For ultrasonic surgical systems without serrated knife Download PDFInfo
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- CN209499831U CN209499831U CN201821775262.5U CN201821775262U CN209499831U CN 209499831 U CN209499831 U CN 209499831U CN 201821775262 U CN201821775262 U CN 201821775262U CN 209499831 U CN209499831 U CN 209499831U
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- cutter head
- serrated knife
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Abstract
The utility model discloses a kind of for ultrasonic surgical systems without serrated knife.This includes: blade and cutter head without serrated knife, and cutter head is no toothing, and the head end of blade is arranged in cutter head, and cutter head is sheet.Blade is divided into leading portion and back segment, leading portion is connected with cutter head, the sectional area of leading portion tapers off trend and include: First stage and second step section according to from the direction of the tail end head-end of blade, First stage and second step section are connected with cutter head and blade respectively, and it is connected using arc surface transition, wherein, the length of First stage and second step section is 2.0mm-4.0mm, the First stage with a thickness of 1.0mm-1.5mm, second step section with a thickness of 1.5mm-2.5mm, length of the arc surface in blade axial direction is 1.2mm-2.8mm.According to the utility model embodiment without serrated knife, good cutting effect, blade leading portion is the form that ladder is shunk, and can greatly reduce the fatigue stress of no serrated knife, prevents no serrated knife stress from concentrating and frequently fractureing, greatly prolongs the service life of no serrated knife.
Description
Technical field
The utility model relates to medical instruments field, in particular to it is a kind of for ultrasonic surgical systems without serrated knife.
Background technique
With the fast development of modern medicine, ultra-sonic surgical aspirator has been increasingly being applied to clinical surgery operation treatment
In, ultrasonic energy is applied to surgical operation by it, has the characteristics that fine cutting, safety, tissue selectivity and low temperature hemostasis, pole
The earth enriches the means of surgical operation, improves the quality of surgical operation, alleviates the slight illness of patient to a certain extent.But
Conventional ultrasound tool category is less, is unable to satisfy operation and requires.For example, application No. is CN201621035611.0, the applying date is
On 08 31st, 2016 patents, it discloses a kind of for ultrasonic surgical systems without serrated knife.This includes: blade without serrated knife；
Cutter head, cutter head are no toothing, and cutter head is arranged in the head end of blade and is sheet, and attached drawing discloses staged leading portion, rank
Ladder type leading portion may gradually reduce the fatigue stress of no serrated knife, prevent no serrated knife stress from concentrating and fractureing, and then extend anodontia
The service life of knife, but inventor, in actual test use process, no serrated knife can still frequently occur the situation that fractures, this nothing
The frequency that will increase tool changing in surgical procedure is doubted, operating time is extended, user experience is poor.
Utility model content
The utility model is intended to solve one of above-mentioned technical problem in the prior art at least to a certain extent.
For this purpose, the purpose of this utility model is that propose it is a kind of for ultrasonic surgical systems without serrated knife, this is rich without serrated knife
The rich type of ultrasonic surgery cutter, improves ultrasonic surgery effect at least to a certain extent.
According to the utility model embodiment for ultrasonic surgical systems without serrated knife, comprising: blade；Cutter head, the knife
Head is no toothing, and the head end of the blade is arranged in the cutter head, and the cutter head is sheet；The blade is divided into leading portion with after
Section, the leading portion are connected with the cutter head, and the sectional area of the leading portion is according to the direction of the tail end head-end from the blade
Decline trend and include: First stage and second step section, the First stage is connected with the cutter head, and described second
Stage is connected with the blade, and between the First stage and the cutter head, the second step section and the blade it
Between and the First stage and the second step section between be all made of arc surface transition connection, wherein the First
The length of stage and the second step section is 2.0mm-4.0mm, the First stage with a thickness of 1.0mm-1.5mm,
The second step section with a thickness of 1.5mm-2.5mm, length of the arc surface in the blade axial direction is 1.2mm-
2.8mm。
According to the utility model embodiment for ultrasonic surgical systems without serrated knife, good cutting effect, while sheet knife
Head can make edge of a knife neat appearance, be convenient for postoperative suture.Moreover, although stepped leading portion can gradually reduce the tired of no serrated knife
Labor stress prevents no serrated knife stress from concentrating and fractureing, but inventor's discovery can still frequently occur the situation that fractures without serrated knife,
It is found by experiment and research, although setting the stepped service life that can improve no serrated knife to a certain extent for leading portion,
Improvement is not obvious, and inventor is subsequently found, and sets aforesaid way for the construction of no serrated knife, while by First
The length of stage and second step section is set as 2.0mm-4.0mm, and the thickness in First stage is set as 1.0mm-1.5mm, the
The thickness of two step sections is set as 1.5mm-2.5mm, and length of the arc surface in blade axial direction is set as 1.2mm-2.8mm, then can
Enough service life for more greatly promoting no serrated knife, preferably reduction stress concentration, and by the above-mentioned First stage and
The combination of the length of second step section, thickness parameter and arc surface parameter, so that stress reduces extremely obvious, no serrated knife service life
It is significantly increased.
In addition, according to the as follows for can also having without serrated knife for ultrasonic surgical systems of the utility model above-described embodiment
Additional technical characteristic:
The length of some embodiments according to the present utility model, the First stage and the second step section is
2.5mm-3.5mm, the First stage with a thickness of 1.1mm-1.3mm, the second step section with a thickness of 1.8mm-
2.2mm, length of the arc surface in the blade axial direction are 1.5mm-2.5mm.
Some embodiments according to the present utility model, the arc surface between the First stage and the second step section
Arc radius be 4.5mm-5.5mm.
Some embodiments according to the present utility model, the length of the cutter head are less than the length of the blade.
Some embodiments according to the present utility model, the length of the cutter head are more than the one third of the blade length.
Some embodiments according to the present utility model, the cutter head be equal thickness structure, the cutter head with a thickness of
0.75mm≤h3≤0.85mm。
Some embodiments according to the present utility model, the point of a knife of the cutter head be it is arc-shaped, the arc-shaped radius is
1.6mm-1.8mm。
Some embodiments according to the present utility model are provided with reinforcement structure on the cutter head.
Some embodiments according to the present utility model, the reinforcement structure are reinforcing rib, and the reinforcing rib is separately positioned on
At least one of two sides of the cutter head, the reinforcing rib extend along the length direction of the cutter head.
Some embodiments according to the present utility model, the width of the cutter head is from the direction of the tail end head-end of the blade
Taper off trend.
Detailed description of the invention
Fig. 1 is the perspective view without serrated knife for ultrasonic surgical systems according to the utility model embodiment；
Fig. 2 is the main view without serrated knife for ultrasonic surgical systems according to the utility model embodiment；
Fig. 3 is the top view without serrated knife for ultrasonic surgical systems according to the utility model embodiment.
Appended drawing reference:
Without serrated knife 10, blade 1, leading portion 11, First stage 111, second step section 112, arc surface 113, back segment 12, rank
Terraced portion 121, flat portion 122, interconnecting piece 123, cutter head 2.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that the meaning of " plurality " is at least two, such as two for term
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
It is connected directly, the mutual of connection inside two elements or two elements can also be can be indirectly connected through an intermediary
Interactively.For the ordinary skill in the art, it can understand that above-mentioned term is practical new at this as the case may be
Concrete meaning in type.
It is described in detail with reference to the accompanying drawing according to the utility model embodiment for ultrasonic surgical systems without serrated knife 10.
Shown in referring to Fig.1, blade 1 is included without serrated knife 10 for ultrasonic surgical systems according to the utility model embodiment
And cutter head 2.Preferably, blade 1 and cutter head 2 are integrally formed, and thus enormously simplify manufacturing process.
Cutter head 2 is no toothing, can prevent plowing from soft tissue, while can make edge of a knife neat appearance, is convenient for postoperative seam
It closes.The head end of blade 1 is arranged in cutter head 2, and cutter head 2 is laminated structure.As a result, the utility model embodiment be used for ultrasonic surgery
System without serrated knife 10, good cutting effect, while sheet cutter head 2 can make edge of a knife neat appearance, be convenient for postoperative suture.
Further, blade 1 can be divided into leading portion 11 and back segment 12, and leading portion 11 is connected with cutter head 2, the sectional area of leading portion 11
It tapers off trend according to from the direction of the tail end head-end of blade 1, in the specific example of Fig. 1, leading portion 11 to cutter head 2 is in ladder
Shape shrink, in this way, ladder shrink by way of, may gradually reduce the fatigue stress of no serrated knife 10, prevent no serrated knife 10 in response to
Power is concentrated and is fractureed, and then extends the service life of no serrated knife 10.
Although stepped leading portion can reduce the fatigue stress of no serrated knife, prevent no serrated knife stress from concentrating and fractureing,
But inventor's discovery can still frequently occur the situation that fractures without serrated knife, be found by experiment and research, although leading portion is arranged
The service life of no serrated knife can be improved to a certain extent for step type, but improvement is not obvious.And such as background technique
The described prior art, also exactly the earlier application of inventor, this programme are also the technology that do not recognize to earlier application
Problem advanced optimize and it is perfect, i.e., inventor has found that the parameter of stepped leading portion has directly the stress distribution during operation
Influence is connect, by rationally designing parameter, using test repeatedly test, so as to obtain more preferably excellent anodontia of the anti-performance that fractures
Knife structure greatly improves the service life of no serrated knife.
Therefore, in the utility model embodiment without in serrated knife 10, leading portion 11 be may further include: the First stage
111 and second step section 112, First stage 111 be connected with cutter head 2, second step section 112 is connected with blade 1, and First
Between stage 111 and cutter head 2, between second step section 112 and blade 1 and First stage 111 and second step section 112 it
Between be all made of 113 transition of arc surface connection, wherein the length of First stage 111 and second step section 112 is 2.0mm-
4.0mm, the First stage 111 with a thickness of 1.0mm-1.5mm, second step section 112 with a thickness of 1.5mm-2.5mm, circular arc
Length of the face in blade axial direction is 1.2mm-2.8mm.
In this way, the blade leading portion 11 of no serrated knife 10 to be configured to the form of ladder-like contraction, while by the First stage 111
It is set as 2.0mm-4.0mm with the length of second step section 112, and the thickness in First stage 111 is set as 1.0mm-1.5mm,
The thickness of second step section 112 is set as 1.5mm-2.5mm, and length of the arc surface in blade axial direction is set as 1.2mm-2.8mm,
The service life of no serrated knife then can be more greatly promoted, preferably reduction stress concentration, and pass through above-mentioned first step
The combination of the length of section and second step section, thickness parameter and arc surface parameter, so that stress reduces extremely obvious, no serrated knife
Service life is significantly increased.
That is, can change the stress distribution of cutter by improvement of cutter shape, in general stairs of knives type mistake
The place of crossing, conical section terminate to locate the place that cross-section product changes greatly all to be peak stress point, it should weaken answering for peak point as far as possible
Force value.Present invention improves over the structure for being easy to appear stress concentration portion position, FEM calculation shows that the maximum of cutter after improvement is answered
The more former cutter of power reduces 60%, and the region that stress is concentrated is substantially reduced.
In one embodiment of the utility model, for example, the length of First stage 111 and second step section 112 can
To be 2.5mm-3.5mm, optionally, the length in First stage 111 can be 3mm, and the length of second step section 112 can also
Think 3mm, the thickness in First stage 111 can be 1.1mm-1.3mm, and optionally, the thickness in First stage 111 can be
The thickness of 1.2mm, second step section 112 can be 1.5mm-2.5mm, and optionally, the thickness of second step section 112 can be
2.0mm, length of the arc surface 113 in 1 axial direction of blade can be 1.5mm-2.5mm, and optionally, arc surface 113 is in 1 axis of blade
Upward length can be 2mm.
Preferable parameter combination obtained by trial and error as a result, can largely improve the use of no serrated knife 10
In the service life, preventing no serrated knife 10, stress is concentrated the case where frequently occur fracture in use, and then reduces operator
The number of tool changing shortens operating time, improves user experience.It can also increase under conditions of guaranteeing without 10 normal use of serrated knife simultaneously
Add the intensity of no serrated knife 10.
In addition, being used for the type for also enriching ultrasonic surgery cutter without serrated knife 10 of ultrasonic surgical systems.
Optionally, the arc radius of the arc surface 113 between First stage 111 and second step section 112 can be
4.5mm-5.5mm, optionally, the arc radius of the arc surface 113 between First stage 111 and second step section 112 can be with
For 5.2mm, the arc radius for the arc surface 113 that transition connects between First stage 111 and cutter head is less than the First stage 111
The arc radius of arc surface 113 between second step section 112, the circle that transition connects between second step section 112 and blade
The arc radius of cambered surface 113 is greater than the arc radius of the arc surface 113 between First stage 111 and second step section 112
4.5mm-5.5mm, the transition between the two of leading portion 11 section and between leading portion 11 and back segment and cutter head 2 is reasonable as a result, and shapes
It is easy.
In a particular embodiment, as shown in figure 3, cutter head 2 can be equal thickness structure, it thus can guarantee the neat of the edge of a knife,
Be conducive to the suture of postoperative incision.Due to cutter head 2 thinner thickness when blade be easy disconnected, cutting speed is influenced when thicker again, by
Thickness 0.75mm≤h3≤0.85mm of this cutter head 2, such as the thickness of cutter head 2 can be 0.8mm.
Further, the length of cutter head 2 is less than the length of blade 1, it is possible thereby to avoid cutter head 2 too long and influence without serrated knife
10 intensity, to enhance the intensity of no serrated knife 10 to a certain extent.
Optionally, the length of cutter head 2 is more than the one third of 1 length of blade, and specifically, the length of cutter head 2 can be
The length of 20mm, blade 1 can be 57mm, can have biggish depth of cut without serrated knife 10 in this way, be conducive to improve operation effect
Rate accelerates procedure.
Optionally, as depicted in figs. 1 and 2, it can be 1.6mm- that the point of a knife of cutter head 2, which is arc-shaped and arc-shaped radius,
1.8mm, for example, arc-shaped radius can be 1.75mm, arc-shaped point of a knife can avoid unexpected scuffing soft tissue.
Reinforcement structure can be set on cutter head 2.In a particular embodiment, reinforcement structure can be reinforcing rib, reinforcing rib point
At least one of two sides of cutter head 2 are not set, and reinforcing rib extends along the length direction of cutter head 2, thereby enhances nothing
The intensity of serrated knife 10, so as to avoid cutter head 2 from fractureing.
According to the utility model embodiment without serrated knife 10, entirely without on serrated knife 10, the width of cutter head 2 is minimum.It is performing the operation
In the process, the cutter head 2 of small size can be to avoid blocking medical worker's sight, and then it is soft around affected part to avoid no serrated knife 10 from accidentally injuring
The structures such as tissue.
Further, 2, knife width can taper off trend from the direction of the tail end head-end of blade 1.In some implementations
In example, the width of cutter head 2 can be 2mm-8mm.Further, the width of cutter head 2 is 4mm-6mm, so that without serrated knife 10
Intensity be guaranteed, and cutting effect is more preferable.
Meanwhile in one embodiment of the utility model, one end of back segment 12 is connected with leading portion 11, and the other end is provided with
Stepped part 121, flat portion 122 and interconnecting piece 123, and the diameter of back segment is 5mm.Stepped part 121 may include multiple multi-diameter shafts, and
The cambered surface that radius is 1mm is provided on the end face of stepped part 121 being connected with back segment 12, stepped part 121 further reduces knife
The stress of body 1 is concentrated, and the fatigue stress of anodontia knife 10 can be made to be uniformly distributed out, the concentration due to fatigue stress is avoided and draw
The phenomenon that hair is broken without serrated knife 10, thus further improves the service life of no serrated knife 10.Flat portion 122 is in outer hexagonal, can
To be obtained by milling, flat portion 122 facilitates operator on Cutting tool installation manner to ultrasonic handpiece, will to thereby facilitate the peace of no serrated knife 10
Dress.Interconnecting piece 123 is connect for no serrated knife 10 with ultrasonic handpiece, and in the embodiment shown in fig. 1, interconnecting piece 123 can be outer
Helicitic texture, the diameter of external thread structure generally 4mm, this connection type are simple and reliable.When installation or removal are without serrated knife 10,
Operator need to only turn the flat portion 122 of 1 tail end of blade with spanner, so that the precession or back-out of threaded portion are driven, it can be easily complete
At the installation of no serrated knife 10.
Certainly, no serrated knife 10 is not limited to be threadedly coupled with the connection type of ultrasonic handpiece, can also be that riveting or clamping are solid
It is fixed.
In one embodiment of the utility model, cutter head 2 can use titanium alloy material, in this way, the intensity of cutter head 2
Height, light weight, to be conducive to mitigate the quality entirely without serrated knife 10.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example
It is contained at least one embodiment or example of the utility model.In the present specification, schematic expression of the above terms
Necessarily it is directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.In addition, those skilled in the art can be by this
Different embodiments or examples described in specification are engaged and are combined.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. it is a kind of for ultrasonic surgical systems without serrated knife characterized by comprising
Blade；
Cutter head, the cutter head are no toothing, and the head end of the blade is arranged in the cutter head, and the cutter head is sheet；
The blade is divided into leading portion and back segment, and the leading portion is connected with the cutter head, and the sectional area of the leading portion is according to from described
The direction of the tail end head-end of blade tapers off trend and include: First stage and second step section, the First stage
Be connected with the cutter head, the second step section is connected with the blade, and between the First stage and the cutter head, institute
It states between second step section and the blade and is all made of arc surface between the First stage and the second step section
Transition connection, wherein the length of the First stage and the second step section is 2.0mm-4.0mm, the First
Stage with a thickness of 1.0mm-1.5mm, the second step section with a thickness of 1.5mm-2.5mm, the arc surface is in the knife
Length in body axial direction is 1.2mm-2.8mm.
2. it is according to claim 1 for ultrasonic surgical systems without serrated knife, which is characterized in that First stage and
The length of the second step section is 2.5mm-3.5mm, the First stage with a thickness of 1.1mm-1.3mm, described
Two step sections with a thickness of 1.8mm-2.2mm, length of the arc surface in the blade axial direction is 1.5mm-2.5mm.
3. it is according to claim 1 for ultrasonic surgical systems without serrated knife, which is characterized in that First stage and
The arc radius of arc surface between the second step section is 4.5mm-5.5mm.
4. it is according to claim 1 for ultrasonic surgical systems without serrated knife, which is characterized in that the length of the cutter head is small
In the length of the blade.
5. it is according to claim 4 for ultrasonic surgical systems without serrated knife, which is characterized in that the length of the cutter head is super
Cross the one third of the blade length.
6. it is according to claim 1 for ultrasonic surgical systems without serrated knife, which is characterized in that the cutter head is equal thickness
Structure, thickness 0.75mm≤h3≤0.85mm of the cutter head.
7. it is according to claim 1 for ultrasonic surgical systems without serrated knife, which is characterized in that the point of a knife of the cutter head is
Arc-shaped, the arc-shaped radius is 1.6mm-1.8mm.
8. it is according to claim 1 for ultrasonic surgical systems without serrated knife, which is characterized in that be provided on the cutter head
Reinforcement structure.
9. it is according to claim 8 for ultrasonic surgical systems without serrated knife, which is characterized in that the reinforcement structure be plus
Strengthening tendons, the reinforcing rib are separately positioned at least one of two sides of the cutter head, and the reinforcing rib is along the cutter head
Length direction extend.
10. it is according to claim 1 for ultrasonic surgical systems without serrated knife, which is characterized in that the width of the cutter head
It tapers off trend from the direction of the tail end head-end of the blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821775262.5U CN209499831U (en) | 2018-10-30 | 2018-10-30 | For ultrasonic surgical systems without serrated knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821775262.5U CN209499831U (en) | 2018-10-30 | 2018-10-30 | For ultrasonic surgical systems without serrated knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209499831U true CN209499831U (en) | 2019-10-18 |
Family
ID=68193151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821775262.5U Active CN209499831U (en) | 2018-10-30 | 2018-10-30 | For ultrasonic surgical systems without serrated knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209499831U (en) |
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2018
- 2018-10-30 CN CN201821775262.5U patent/CN209499831U/en active Active
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