CN110074845B - Pressure equalization structure of ultrasonic knife head - Google Patents
Pressure equalization structure of ultrasonic knife head Download PDFInfo
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- CN110074845B CN110074845B CN201910411366.0A CN201910411366A CN110074845B CN 110074845 B CN110074845 B CN 110074845B CN 201910411366 A CN201910411366 A CN 201910411366A CN 110074845 B CN110074845 B CN 110074845B
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- 230000000694 effects Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B2017/320072—Working tips with special features, e.g. extending parts
Abstract
The invention relates to a pressure equalization structure of an ultrasonic knife head, which comprises the following components: a housing; the ultrasonic action rod is connected with the shell and provided with a pressure-bearing surface; the pushing piece is arranged on the shell and can move relative to the shell; the support piece is connected with the shell; the rear part of the shear head is sequentially provided with a movable connecting part and a positioning connecting part from back to front; the movable connecting part is hinged with the supporting piece, and the positioning connecting part is movably connected with the pushing piece; the pressing piece comprises a body, a mounting surface and a pressure acting surface which are oppositely arranged are arranged on the body, the middle part of the mounting surface of the body is rotationally connected with the front part of the shear head, and the pressing piece is positioned between the shear head and the ultrasonic acting rod. According to the pressure balancing structure of the ultrasonic knife head, the whole pressure acting surface of the pressing piece can apply uniform pressure to tissues to be cut, so that the cutting effect is better.
Description
Technical Field
The invention relates to the technical field of ultrasonic cutters, in particular to a pressure balancing structure of an ultrasonic cutter head.
Background
Ultrasonic blades have been widely used in clinical surgical treatment, and are ultrasonic waves that cut internal tissues of the human body like a real blade using the principle of ultrasound. The ultrasonic knife mainly comprises a main machine, a driving handle, a connecting wire, a knife head, a foot switch and the like; the working principle is that the pedal or hand-held tool bit is used for activating, at the moment, the host machine outputs electric energy under the resonance frequency of the vibration system to the driving handle, the driving handle converts the electric energy into mechanical energy and outputs the mechanical energy to the tool bit, and the tool bit further amplifies the vibration to perform mechanical vibration, so that water in tissue cells is vaporized, protein hydrogen bonds are broken, cells are disintegrated, and the tissue is cut or coagulated, thereby achieving the purposes of tissue cutting and hemostasis.
The ultrasonic knife head comprises a shell and a knife bar assembly, the knife bar assembly comprises an ultrasonic action bar, a first knife bar and a second knife bar, the rear end of the second knife bar is fixedly connected with the shell, one end of the shear head is connected with the front end of the first knife bar and hinged with the front end of the second knife bar, the shear head can move relative to the ultrasonic action bar to open or close, and a clamping state can be formed when the shear head is closed so as to clamp tissues. Because there are often hard areas in the tissue, when the hard areas are clamped at the intersection formed by the shear head and the ultrasonic action rod, the shear head can generate larger pressure on the hard areas, and the front end of the shear head applies smaller pressure on the tissue, so that uneven cutting can be caused, and the cutting effect is poor.
How to design an ultrasonic blade that can ensure uniform pressure to the tissue to be cut is a problem that one skilled in the art would need to solve.
Disclosure of Invention
The invention aims to provide a pressure equalization structure of an ultrasonic knife head so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a pressure equalization structure for an ultrasonic blade head, comprising: a housing; the ultrasonic action rod is connected with the shell and is provided with a pressure bearing surface; a pushing piece which is arranged on the shell and can move relative to the shell; a support member connected to the housing; the rear part of the shear head is sequentially provided with a movable connecting part and a positioning connecting part from back to front; the movable connecting part is hinged with the supporting piece, and the positioning connecting part is movably connected with the pushing piece; the pressing piece comprises a body, wherein a mounting surface and a pressure acting surface which are oppositely arranged are arranged on the body, the middle part of the mounting surface of the body is rotationally connected with the front part of the shear head, and the pressing piece is positioned between the shear head and the ultrasonic acting rod; the pushing piece can drive the shear head to move forwards, so that the shear head drives the pressure acting surface of the pressing piece to move towards the ultrasonic acting rod, and the pressure acting surface and the pressure bearing surface are closed.
Preferably, two mounting parts are arranged on the side surface of the shear head opposite to the ultrasonic action rod, and each mounting part is provided with a mounting hole; the middle part of the mounting surface of the body is provided with a connector, the connector is provided with a connecting through hole, and the connector is inserted between the two mounting parts; the support shaft sequentially penetrates through one of the mounting holes, the connecting through holes and the other mounting hole, the support shaft is fixedly connected with the two mounting holes, and the connecting through holes are in clearance fit with the support shaft.
Further, a groove is formed in the pressure acting surface.
Further, a plurality of protruding parts are arranged on the inner wall of the groove.
Preferably, a pressure bearing area corresponding to the pressure acting surface is arranged on the pressure bearing surface of the ultrasonic acting rod, and the contour of the pressure acting surface corresponds to the contour of the pressure bearing area.
Preferably, the shear head comprises a head part, wherein the rear end of the head part is provided with two opposite rear piece parts, and the opposite inner side surfaces of the two rear piece parts are respectively provided with the movable connecting parts; the side surface of the head part opposite to the ultrasonic action rod is an arc surface protruding outwards.
Further, the support piece is a sleeve, the rear end of the support piece is connected with the shell, and the support piece is sleeved on the ultrasonic action rod; two opposite bearing through holes are formed in the sleeve, and each bearing through hole is hinged to the movable connecting portion.
Further, the cross section of the movable connecting part is formed by encircling a first straight line, a first circular arc line, a second straight line and a second circular arc line which are sequentially connected; the length of the first straight line is smaller than that of the second straight line, and the first circular arc line and the second circular arc line are both outwards projected; the first circular arc line and the second circular arc line are axisymmetrically arranged by taking a connecting line of the midpoint of the first straight line and the midpoint of the second straight line as a central axis; the bearing through hole comprises a rectangular hole part and a round hole part which are communicated with each other, the diameter of the round hole part is larger than the length of the rectangular hole part, and the distance between the first straight line and the second straight line is smaller than the length of the rectangular hole part; the length of the first straight line is larger than the diameter of the circular hole part; the movable connecting part penetrates through the bearing through hole and penetrates into the support piece.
Compared with the prior art, the invention has obvious progress:
in the pressure balancing structure of the ultrasonic knife head, as the middle part of the mounting surface of the body is rotationally connected with the front part of the scissor head, when the scissor head dynamic pressure piece moves towards the ultrasonic action rod, the whole pressure action surface of the pressure piece simultaneously moves towards the pressure bearing surface, and then the whole pressure action surface is simultaneously pressed towards the pressure bearing surface, so that the pressure action surface and the pressure bearing surface are closed; according to the pressure balancing structure of the ultrasonic knife head, the whole pressure acting surface of the pressing piece can apply uniform pressure to tissues to be cut, so that the cutting effect is better.
Drawings
Fig. 1 is a schematic view of the internal structure of the pressure equalizing structure of the ultrasonic-blade head of the present embodiment.
Fig. 2 is a schematic view of the structure of the pressure equalizing structure of the ultrasonic blade head of the present embodiment when the pressing member is separated from the ultrasonic action bar.
Fig. 3 is a schematic structural view of the pressure equalizing structure of the ultrasonic blade head of the present embodiment when the pressing member and the ultrasonic action rod are closed.
Fig. 4 is a schematic diagram of the pressure equalizing structure of the ultrasonic blade head according to the present embodiment when the pressing member and the scissor head are disassembled.
Fig. 5 is a schematic view of the structure of the trigger, the support and the push rod of the pressure equalizing structure of the ultrasonic blade head of the present embodiment when disassembled.
Fig. 6 is a schematic perspective view of the connection of the shear head and the pressing member of the pressure equalizing structure of the ultrasonic blade head of the present embodiment.
Fig. 7 is a schematic view of the pressure application surface of the pressing member when the shear head of the pressure equalizing structure of the ultrasonic blade head of the present embodiment is connected to the pressing member.
Fig. 8 is a schematic structural view of a pressure pad of the pressure equalizing structure of the ultrasonic blade head of the present embodiment.
Fig. 9 is a schematic perspective view of the support member and the shear head of the pressure equalizing structure of the ultrasonic blade head of the present embodiment when disassembled.
Description of the reference numerals
100. Shell body
200. Ultrasonic action rod
210. Pressure bearing surface
211. Bearing area
300. Pusher member
310. Raised portion
400. Support member
410. Bearing through hole
411. Rectangular hole part
412. Circular hole part
500. Shear head
510. Movable connecting part
511. First straight line
512. First arc line
513. Second straight line
514. Second circular arc line
520. Positioning connection part
530. Mounting part
531. Mounting hole
501. Head part
5011. The side of the head opposite the ultrasonic action bars
502. Rear part
600. Pressing piece
610. Body
611. Mounting surface
612. Pressure acting surface
6121. Groove
6122. Raised portion
620. Connector head
621. Connection through hole
630. Supporting shaft
700. Spanner handle
710. Handle body
720. Driving part
721. Slot groove
722. Bearing groove
730. Pin shaft
800. Pressing pad
810. Convex part
Length of L-shaped rectangular hole
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1 to 9, the pressure equalizing structure of the ultrasonic-blade head of the present embodiment includes:
a housing 100;
an ultrasonic action bar 200 connected to the housing 100, the ultrasonic action bar 200 having a pressure-bearing surface 210;
a pusher 300 mounted on the housing 100 and movable relative to the housing 100;
a support 400 connected to the housing 100;
the shear head 500, the rear part of the shear head 500 is provided with a movable connecting part 510 and a positioning connecting part 520 from back to front in sequence; the movable connecting part 510 is hinged with the supporting piece 400, and the positioning connecting part 520 is movably connected with the pushing piece 300;
the pressing piece 600, the pressing piece 600 includes a body 610, a mounting surface 611 and a pressure acting surface 612 are provided on the body 610, which are oppositely arranged, the middle part of the mounting surface 611 of the body 610 is rotatably connected with the front part of the shear head 500, and the pressing piece 600 is positioned between the shear head 500 and the ultrasonic acting rod 200;
the pushing member 300 may drive the shear head 500 to move forward, so that the shear head 500 drives the pressure acting surface 612 of the pressing member 600 to move toward the ultrasonic acting rod 200, so that the pressure acting surface 612 is closed with the pressure bearing surface 210.
In the pressure equalizing structure of the ultrasonic knife head of the present embodiment, since the middle part of the mounting surface 611 of the body 610 is rotatably connected with the front part of the shear head 500, when the shear head 500 drives the pressing member 600 to move toward the ultrasonic action rod 200, the entire pressure action surface 612 of the pressing member 600 simultaneously moves toward the pressure bearing surface 210, and then the entire pressure action surface 612 simultaneously presses against the pressure bearing surface 210, so that the pressure action surface 612 and the pressure bearing surface 210 are closed.
In the pressure equalizing structure of the ultrasonic blade head of the present embodiment, the entire pressure acting surface 612 of the pressing member 600 can apply uniform pressure to the tissue to be cut, so that the cutting effect is better.
The pressure equalization structure of the ultrasonic knife head of this embodiment further includes: the trigger 700, the trigger 700 is movably connected with the housing 100, and the rear end of the pushing member 300 is connected with the trigger 700. Turning the trigger 700, the trigger 700 drives the pusher 300 to move relative to the housing 100, and the pusher 300 drives the scissor head 500 to move.
The rear end of the pusher 300 is provided with two oppositely disposed protrusions 310. The trigger 700, the trigger 700 includes a handle body 710, a driving part 720 is provided at one end of the handle body 710, a slot 721 and two receiving slots 722 are provided on the end surface of the driving part 720 far away from the handle body 710, the two receiving slots 722 are located at two sides of the slot 721, the slot 721 is perpendicular to the receiving slots 722, the slot 721 penetrates to the front end of the driving part 720, the slot 721 is used for inserting the ultrasonic action rod 200, and the two protruding parts 310 are respectively inserted into the two receiving slots 722; the driving part 720 is hinged to the housing 100 through a pin 730.
Two mounting parts 530 are provided on the opposite side of the shear head 500 to the ultrasonic action bar 200, and a mounting hole 531 is provided on each mounting part 530; the middle part of the mounting surface 611 of the body 610 is provided with a connector 620, the connector 620 is provided with a connecting through hole 621, and the connector 620 is inserted between the two mounting parts 530; a supporting shaft 630 sequentially passes through one of the mounting holes 531, the connecting through hole 621 and the other mounting hole 531, the supporting shaft 630 is fixedly connected with the two mounting holes 531, and the connecting through hole 621 is in clearance fit with the supporting shaft 630. This structure facilitates the movable connection of the pressing member 600 with the supporting shaft 630; the coupling head 620 of this structure can rotate with respect to the support shaft 630, and can ensure that the entire pressure-applying surface 612 of the body 610 of the pressing member 600 can be simultaneously pressed against the pressure-bearing surface 210.
The pressure equalizing structure of the ultrasonic knife head of the embodiment also comprises a pressure pad 800; the pressure application surface 612 is provided with a groove 6121. The groove 6121 allows the press pad 800 to be snapped in, so that the press pad 800 can be stably disposed in the groove 6121. The provision of the pressing pad 800 can prevent the body 610 from directly contacting the ultrasonic action bars 200.
A plurality of protruding portions 6122 are provided on the inner wall of the groove 6121. The protrusion 810 is disposed on one side of the press pad 800 placed in the groove 6121, and the profile of the protrusion 810 corresponds to the shape of the cross section of the inner wall of the groove 6121, so that the position of the press pad 800 placed in the groove 6121 can be limited, and the press pad 800 is effectively prevented from moving in the groove 6121.
The pressure-receiving surface 210 of the ultrasonic operation rod 200 is provided with a pressure-receiving area 211 corresponding to the pressure-receiving surface 612, and the contour of the pressure-receiving surface 612 corresponds to the contour of the pressure-receiving area 211. This structure can ensure that the entire pressure-acting surface 612 can exert a uniform pressure against the pressure-bearing surface 210.
The shear head 500 comprises a head 501, wherein two opposite rear piece parts 502 are arranged at the rear end of the head 501, and movable connecting parts 510 are arranged on opposite inner sides of the two rear piece parts 502; the side 5011 of the head 501 opposite to the ultrasonic action bar 200 is an arcuate surface that protrudes outward. This structure makes the side 5011 of the head 501 opposite to the ultrasonic action bar 200 not to block the rotation of the ram, ensuring that the ram can be stably pressed against the ultrasonic action bar 200.
The number of the positioning connection parts 520 is two, and each positioning connection part 520 is a connection hole arranged on the corresponding rear piece 502, and a serial piece connects one positioning connection part 520, the front end of the pushing piece 300 and the other positioning connection part 520 in series.
The support piece 400 is a sleeve, the rear end of the support piece 400 is connected with the shell 100, and the support piece 400 is sleeved on the ultrasonic action rod 200; two opposite receiving through holes 410 are arranged on the sleeve, and each receiving through hole 410 is hinged with the movable connecting part 510. Since the two movable coupling parts 510 are respectively hinged with the corresponding receiving through holes 410, the structure enables the scissor head 500 to be stably coupled with the sleeve, so that the scissor head 500 can be stably rotated relative to the sleeve, so that the scissor head 500 can be aligned with the front end of the ultrasonic action bar 200 when being closed.
The cross section of the movable connecting part 510 is formed by encircling a first straight line 511, a first circular arc line 512, a second straight line 513 and a second circular arc line 514 which are sequentially connected; the length of the first straight line 511 is smaller than that of the second straight line 513, and the first circular arc line 512 and the second circular arc line 514 are both outwards convex; the first arc line 512 and the second arc line 514 are axisymmetrically arranged with a line connecting a midpoint of the first straight line 511 and a midpoint of the second straight line 513 as a central axis; the receiving through hole 410 includes a rectangular hole portion 411 and a circular hole portion 412 which communicate with each other, the diameter of the circular hole portion 412 being larger than the length L of the rectangular hole portion 411, and the distance between the first straight line 511 and the second straight line 513 being smaller than the length L of the rectangular hole portion 411; the length of the first straight line 511 is greater than the diameter of the circular hole portion 412; the movable connection portion 510 penetrates through the receiving through hole 410 and penetrates into the support 400.
The length LL of the rectangular hole portion 411 is greater than the distance between the first straight line 511 and the second straight line 513, and this structure allows the swing joint 510 to pass through the rectangular hole portion 411 into the receiving through hole 410; the length of the first straight line 511 is smaller than that of the second straight line 513, and the length of the second straight line 513 is larger than the diameter of the circular hole portion 412, so that the movable connection portion 510 can be stably located inside the sleeve when being extended into the circular hole portion 412 through the rectangular hole portion 411, and the movable connection portion 510 is prevented from being moved out through the circular hole portion 412. The movable connection part 510 is constructed to facilitate the disassembly of the scissor head 500 from the cannula.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (8)
1. The utility model provides a pressure equalization structure of ultrasonic knife tool bit which characterized in that: comprising the following steps:
a housing (100);
an ultrasonic action bar (200) connected to the housing (100), the ultrasonic action bar (200) having a pressure-bearing surface (210);
a pusher (300) mounted on the housing (100) and movable relative to the housing (100);
a support (400) connected to the housing (100);
the scissors are characterized by comprising scissors (500), wherein a movable connecting part (510) and a positioning connecting part (520) are sequentially arranged at the rear part of the scissors (500) from back to front; the movable connecting part (510) is hinged with the supporting piece (400), and the positioning connecting part (520) is movably connected with the pushing piece (300);
the pressing piece (600), the pressing piece (600) comprises a body (610), a mounting surface (611) and a pressure acting surface (612) which are oppositely arranged are arranged on the body (610), the middle part of the mounting surface (611) of the body (610) is rotationally connected with the front part of the shear head (500), and the pressing piece (600) is positioned between the shear head (500) and the ultrasonic acting rod (200);
the pushing piece (300) can drive the shear head (500) to move forwards, so that the shear head (500) drives the pressure acting surface (612) of the pressing piece (600) to move towards the ultrasonic acting rod (200), and the pressure acting surface (612) and the pressure bearing surface (210) are closed.
2. The pressure equalizing structure of an ultrasonic knife head according to claim 1, wherein:
two mounting parts (530) are arranged on the side surface of the shear head (500) opposite to the ultrasonic action rod (200), and a mounting hole (531) is arranged on each mounting part (530);
a connector (620) is arranged in the middle of the mounting surface (611) of the body (610), a connecting through hole (621) is arranged on the connector (620), and the connector (620) is inserted between the two mounting parts (530);
the supporting shaft (630) sequentially penetrates through one of the mounting holes (531), the connecting through holes (621) and the other mounting hole (531), the supporting shaft (630) is fixedly connected with the two mounting holes (531), and the connecting through holes (621) are in clearance fit with the supporting shaft (630).
3. The pressure equalizing structure of an ultrasonic knife head according to claim 2, wherein:
the pressure acting surface (612) is provided with a groove (6121).
4. The pressure equalizing structure of an ultrasonic knife head according to claim 3, wherein:
a plurality of protruding parts (6122) are arranged on the inner wall of the groove (6121).
5. The pressure equalizing structure of an ultrasonic knife head according to claim 1, wherein:
a pressure-bearing area (211) corresponding to the pressure-bearing surface (612) is arranged on the pressure-bearing surface (210) of the ultrasonic action rod (200), and the contour of the pressure-bearing surface (612) corresponds to the contour of the pressure-bearing area (211).
6. The pressure equalizing structure of an ultrasonic knife head according to claim 1, wherein:
the shear head (500) comprises a head (501), wherein two opposite rear piece parts (502) are arranged at the rear end of the head (501), and the movable connecting parts (510) are arranged on opposite inner side surfaces of the two rear piece parts (502);
the side (5011) of the head (501) opposite to the ultrasonic action bar (200) is an arc surface protruding outwards.
7. The pressure equalizing structure of an ultrasonic knife head according to claim 6, wherein:
the support piece (400) is a sleeve, the rear end of the support piece (400) is connected with the shell (100), and the support piece (400) is sleeved on the ultrasonic action rod (200);
two opposite bearing through holes (410) are formed in the sleeve, and each bearing through hole (410) is hinged with the movable connecting part (510).
8. The pressure equalizing structure of an ultrasonic knife head according to claim 7, wherein:
the cross section of the movable connecting part (510) is formed by encircling a first straight line (511), a first circular arc line (512), a second straight line (513) and a second circular arc line (514) which are connected in sequence; the length of the first straight line (511) is smaller than that of the second straight line (513), and the first circular arc line (512) and the second circular arc line (514) are both outwards convex;
the first circular arc line (512) and the second circular arc line (514) are axisymmetrically arranged by taking a connecting line of the midpoint of the first straight line (511) and the midpoint of the second straight line (513) as a central axis;
the receiving through hole (410) comprises a rectangular hole part (411) and a circular hole part (412) which are communicated with each other, the diameter of the circular hole part (412) is larger than the length of the rectangular hole part (411), and the distance between the first straight line (511) and the second straight line (513) is smaller than the length of the rectangular hole part (411); the length of the first straight line (511) is larger than the diameter of the circular hole part (412);
the movable connecting part (510) penetrates through the bearing through hole (410) and penetrates into the support piece (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411366.0A CN110074845B (en) | 2019-05-16 | 2019-05-16 | Pressure equalization structure of ultrasonic knife head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411366.0A CN110074845B (en) | 2019-05-16 | 2019-05-16 | Pressure equalization structure of ultrasonic knife head |
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| CN110074845A CN110074845A (en) | 2019-08-02 |
| CN110074845B true CN110074845B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910411366.0A Active CN110074845B (en) | 2019-05-16 | 2019-05-16 | Pressure equalization structure of ultrasonic knife head |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112089479B (en) * | 2020-10-20 | 2021-09-28 | 重庆迈科唯医疗科技有限公司 | Shearing head and ultrasonic knife |
| CN112472220B (en) * | 2020-11-27 | 2022-02-18 | 常州安康医疗器械有限公司 | Pressure balanced type supersound sword |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001024713A1 (en) * | 1999-10-05 | 2001-04-12 | Ethicon Endo-Surgery, Inc. | Blades with functional balance asymmetries for use with ultrasonic surgical instruments |
| CN104224279A (en) * | 2013-06-18 | 2014-12-24 | 瑞奇外科器械(中国)有限公司 | Ultrasonic shears tip and clamping drive mechanism thereof |
| CN107928784A (en) * | 2017-12-07 | 2018-04-20 | 北京水木天蓬医疗技术有限公司 | A kind of ultrasound cutter head, ultrasound pass shake component and ultrasound hemostasis and diced system |
| CN210697758U (en) * | 2019-05-16 | 2020-06-09 | 华外医疗器械(上海)有限公司 | Pressure equalizing structure of ultrasonic knife head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8057498B2 (en) * | 2007-11-30 | 2011-11-15 | Ethicon Endo-Surgery, Inc. | Ultrasonic surgical instrument blades |
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2019
- 2019-05-16 CN CN201910411366.0A patent/CN110074845B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001024713A1 (en) * | 1999-10-05 | 2001-04-12 | Ethicon Endo-Surgery, Inc. | Blades with functional balance asymmetries for use with ultrasonic surgical instruments |
| CN104224279A (en) * | 2013-06-18 | 2014-12-24 | 瑞奇外科器械(中国)有限公司 | Ultrasonic shears tip and clamping drive mechanism thereof |
| CN107928784A (en) * | 2017-12-07 | 2018-04-20 | 北京水木天蓬医疗技术有限公司 | A kind of ultrasound cutter head, ultrasound pass shake component and ultrasound hemostasis and diced system |
| CN210697758U (en) * | 2019-05-16 | 2020-06-09 | 华外医疗器械(上海)有限公司 | Pressure equalizing structure of ultrasonic knife head |
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| CN110074845A (en) | 2019-08-02 |
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Effective date of registration: 20220914 Address after: No. 120, Xinxing Road, West District, Binhai New Area Development Zone, Tianjin 300462 Applicant after: REACH SURGICAL Inc. Address before: Room 504, Building 1, No. 351, Guoshoujing Road, China (Shanghai) Pilot Free Trade Zone, Pudong New Area, Shanghai, 201203 Applicant before: CHINA SURGICAL (SHANGHAI) Corp. |
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