CN112089479B - Shearing head and ultrasonic knife - Google Patents
Shearing head and ultrasonic knife Download PDFInfo
- Publication number
- CN112089479B CN112089479B CN202011124121.9A CN202011124121A CN112089479B CN 112089479 B CN112089479 B CN 112089479B CN 202011124121 A CN202011124121 A CN 202011124121A CN 112089479 B CN112089479 B CN 112089479B
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- shear
- head
- guide groove
- strip
- rear part
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- 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
- A61B2017/320074—Working tips with special features, e.g. extending parts blade
-
- 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
- A61B2017/320082—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for incising tissue
Abstract
The invention discloses a shear and an ultrasonic knife, wherein the shear comprises a shear front part and a shear rear part, a mounting cavity for mounting a tissue pad is arranged on the shear, the mounting cavity is formed between the shear front part and the shear rear part, an opening for mounting the tissue pad into the mounting cavity is formed in the rear end of the shear front part and/or the front end of the shear rear part, a guide connecting structure is arranged between the shear front part and the shear rear part and used for enabling the shear front part to be far away from the shear rear part or close to the shear rear part along the extension direction of the shear, when the shear front part is far away from the shear rear part, the opening is exposed, and when the shear front part is directly butted with the shear rear part, the opening is hidden. According to the invention, the opening can be exposed or hidden by pushing and pulling the front part of the shear head, so that the tissue pad can be drawn out of the opening or inserted into the installation cavity, the operation space around the opening is larger, and the difficulty in dismounting the tissue pad is favorably reduced.
Description
Technical Field
The invention relates to medical equipment, in particular to a shearing head and an ultrasonic knife.
Background
The cutter head of the ultrasonic knife can be divided into a disposable cutter head and a reusable cutter head according to the classification of the use times, but no matter the disposable cutter head or the reusable guide picture is provided with a tissue pad on a forceps arm (also called a shearing head) of the cutter head, during operation, the coagulation and cutting functions of the ultrasonic knife are realized by controlling the action of the shearing head, so that the jaws are closed, the shearing head is pressed to tissues, and the coagulation and cutting of blood vessels are realized under the action of high-frequency vibration. Although the tissue pad is made of a material with high temperature resistance, wear resistance and good lubricity, the tissue pad still has a short service life under high-frequency vibration and even can not complete a long-time operation, so that a mounting structure for the detachable tissue pad is necessary to be arranged on the scissor head.
At present, tissue pads on the scissor heads are fixed in a bonding mode and the like, and are difficult to replace; there are also some tissue pads on the cutting head that can be replaced, i.e., by withdrawing or inserting the tissue pad through an opening in the tail (also referred to as the proximal end) of the cutting head, however, the operation difficulty of replacing the tissue pad is high due to the structure that the cutting head in the ultrasonic scalpel is usually hinged on the cutter rod, no matter how the cutting head of the ultrasonic scalpel rotates, the opening at the tail part of the cutting head faces the cutter rod, the space for inserting and pulling the tissue pad is extremely limited, so that the replacement of the tissue pad is extremely inconvenient, and the time consumption is long, on the other hand, if the channel for the tissue pad to be drawn out or inserted into the scissor head is not provided with a positioning structure, the tissue pad is difficult to be reliably positioned, if the channel for drawing out or inserting the tissue pad in the shearing head is provided with the positioning structure, the tissue pad is likely to be damaged in the drawing-out process, so that part of the tissue pad is difficult to be drawn out smoothly and is blocked in the shearing head, and a new tissue pad is difficult to be loaded smoothly.
Disclosure of Invention
The invention mainly aims to provide a combined shearing head and an ultrasonic knife so as to reduce the difficulty of assembling and disassembling a tissue pad.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
the utility model provides a shear, includes shear front portion and shear rear portion, set up the installation cavity that is used for installing the tissue pad on the shear, the installation cavity form in shear front portion with between the shear rear portion, shear front portion's rear end and/or shear rear portion's front end is provided with and is used for supplying the tissue pad to pack into the opening of installation cavity, shear front portion with be provided with direction connection structure between the shear rear portion, direction connection structure is used for making shear front portion can be followed the extending direction of shear and kept away from shear rear portion or be close to shear rear portion, works as shear front portion is kept away from during the shear rear portion, the opening exposes, works as shear front portion directly docks during the shear rear portion, the opening is hidden.
Optionally, the guide connection structure includes a guide groove and a strip-shaped guide elastic sheet, the strip-shaped guide elastic sheet has a fixed end and a free end, and the free end of the strip-shaped guide elastic sheet slidably extends into the guide groove;
the guide groove is arranged on the rear part of the shearing head, and the strip-shaped fixed end is arranged on the front part of the shearing head; or the guide groove is arranged on the front part of the shearing head, and the fixed end of the strip-shaped guide elastic sheet is arranged on the rear part of the shearing head.
Optionally, a closed in-place self-locking structure is arranged between at least one strip-shaped guide elastic sheet and the corresponding guide groove.
Optionally, a stroke limiting structure for limiting the maximum stroke of the front part of the shear head far away from the rear part of the shear head is arranged between at least one strip-shaped guide elastic sheet and the corresponding guide groove.
Optionally, the mounting cavity is a T-shaped groove formed in the surface of the shear head, the guide groove is divided into a first guide groove formed in the side wall or the bottom surface of the mounting cavity and a second guide groove located outside the mounting cavity, and a closed in-place self-locking structure is arranged between the first guide groove and the corresponding strip-shaped guide elastic piece; and a stroke limiting structure used for limiting the maximum stroke of the front part of the shear head far away from the rear part of the shear head is arranged between the second guide groove and the corresponding strip-shaped guide elastic sheet.
Optionally, the closed in-place self-locking structure comprises a hanging and buckling part arranged at the free end of the strip-shaped guide elastic sheet and a positioning clamping groove arranged in the corresponding guide groove, and the hanging and buckling part is used for being self-adaptively clamped into or withdrawn from the positioning clamping groove under the action of elastic force when being closed.
Optionally, the stroke limiting structure includes a protrusion arranged on the strip-shaped guide elastic sheet and a limiting portion arranged in the corresponding guide groove, and the limiting portion is arranged at the foremost end of the guide groove and blocks the protrusion.
Optionally, the first guide groove is disposed on a cavity bottom surface of the mounting cavity.
Optionally, a blocking portion for limiting a limit position of the tissue loaded backwards is arranged on the rear portion of the shear head, the blocking portion is arranged in the mounting cavity, and an avoiding space for avoiding the tool tip of the ultrasonic scalpel is formed in the middle of the blocking portion.
Correspondingly, the invention also provides an ultrasonic knife which comprises a knife bar component and a knife head component, wherein the knife head component comprises two shearing heads, and at least one shearing head is any one of the shearing heads.
According to the invention, the opening can be exposed or hidden by pushing and pulling the front part of the shear head, so that the tissue pad can be drawn out of the opening or inserted into the installation cavity, the operation space around the opening is larger, and the difficulty in dismounting the tissue pad is favorably reduced.
Drawings
Fig. 1 is a schematic view of an exemplary structure of the head of the present invention when the front of the head is pulled open;
FIG. 2 is a schematic view of the shear head of FIG. 1 shown after the front portion has been closed;
fig. 3 is a schematic view of another exemplary embodiment of a shear head according to the present invention;
fig. 4 is a schematic view of a further exemplary embodiment of a shear head according to the present invention;
FIG. 5 is a schematic view in section A-A of the scissor head of FIG. 2 after being mounted in a tissue pad;
FIG. 6 is a schematic view in cross section taken along line B-B of FIG. 2;
FIG. 7 is a schematic view of the rear portion of the shear of FIG. 1;
FIG. 8 is a schematic structural view of the in-place self-locking structure in a locking state;
fig. 9 is a schematic structural view showing the unlocking of the in-position self-locking structure.
The description of reference numerals in the examples includes:
a shear head front portion 11;
the rear part 12 of the shear head, a blocking part 121, an avoiding space 121a, a limiting part 122, a long strip inlet 123a, an avoiding inlet 123b, an observation window 124 and a shielding part 125;
the strip-shaped guide elastic sheet 13, the hanging buckle part 131 and the bulge 132;
an extension spring 14;
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, like reference numerals refer to like elements throughout.
In each of the following embodiments, the direction qualifier "rear" refers to a direction closer to the operator in the use state, and "front" refers to a direction farther from the operator in the use state.
In the shear head application and the ultrasonic knife in each embodiment described below, the ultrasonic knife is generally provided with a cutter bar assembly and a cutter head assembly, the cutter head assembly generally comprises two shear heads, when the ultrasonic knife works, the shear heads are closed under the driving of the cutter bar assembly, and the vibration energy is transmitted to the shear heads through the cutter bar assembly, so that the functions of coagulation, cutting and the like are realized.
Referring to fig. 1 to 4 in combination, the cutting head of the present invention includes a cutting head front portion 11 and a cutting head rear portion 12, a mounting cavity 101 for mounting a tissue pad is disposed on the cutting head, the mounting cavity 101 is formed between the cutting head front portion 11 and the cutting head rear portion 12, both a rear end of the cutting head front portion 11 and a front end of the cutting head rear portion 12 are provided with an opening 102 for mounting the tissue pad into the mounting cavity 101, a guiding connection structure is disposed between the cutting head front portion 11 and the cutting head rear portion 12, the guiding connection structure is configured to enable the cutting head front portion 11 to be away from the cutting head rear portion 12 or close to the cutting head rear portion 12 along an extending direction of the cutting head, when the cutting head front portion 11 is away from the cutting head rear portion 12, the opening 102 is exposed, and when the cutting head front portion 11 is directly abutted against the cutting head rear portion 12, the opening 102 is hidden.
In practical implementation, referring to fig. 3, the mounting cavity 101 may be disposed only on the rear portion 12 of the cutting head, in which case, only the rear portion 12 of the cutting head is disposed with the opening 102; of course, the mounting cavity is provided only in the front of the cutting head (not shown), in which case only the front of the cutting head is provided with the opening.
When the tissue pad needs to be replaced, the front part 11 of the scissor is pulled to enable the front part 11 of the scissor to be far away from the rear part 12 of the scissor, a spacing space 104 is formed between the front part 11 of the scissor and the rear part 12 of the scissor, the opening 102 is exposed (see fig. 1), the tissue pad is picked up at the spacing space 104 by using forceps or other tools to enable the tissue pad to be picked out from the opening 102, then a new tissue pad is loaded into the tissue pad from the opening 102, the front part 11 of the scissor is driven to be close to the rear part 12 of the scissor, and the whole front part 11 of the scissor and the rear part 12 of the scissor are closed.
In some embodiments, referring to fig. 1 to 3, the guiding connection structure includes a guiding groove 103 and a strip-shaped guiding elastic sheet 13, the strip-shaped guiding elastic sheet 13 has a fixed end and a free end, the free end of the strip-shaped guiding elastic sheet 13 slidably extends into the guiding groove 103, the guiding groove 103 is disposed on the rear portion 12 of the cutting head, the fixed end of the strip-shaped guiding elastic sheet is disposed on the front portion 11 of the cutting head, and the strip-shaped guiding elastic sheet 13 slides along the guiding groove 103 when the front portion 11 of the cutting head is pushed or pulled. In the practical implementation process, the guide groove may be disposed at the front of the shear head, and the fixed end of the bar-shaped guide elastic piece is disposed at the rear of the shear head.
In other embodiments, referring to fig. 4, the guiding connection structure comprises a guiding slot 103 and an extension spring 14, one end of the extension spring 14 is fixed on the front part 11 of the head, the other end of the extension spring 14 is fixed on the rear part 12 of the head, the guiding slot 103 is opened on the front part 11 and/or the rear part 12 of the head, and the extension spring 14 is arranged in the guiding slot 103. When the operator applies a pulling force to pull the front part 11 of the shear head to expose the opening 102, conversely, the front part 11 of the shear head is close to the rear part 12 of the shear head by releasing the front part 11 of the shear head and releasing the elastic force of the pulling spring.
In some embodiments, the thickness of the strip-shaped guiding elastic sheet 13 is within the range of 0.1-1 mm, under normal conditions, the length of the shearing head is about 20mm, the width of the shearing head is about 5-6 mm, and an organization pad is required to be installed in the shearing head. If a pull-up spring is used, the size of the shear head needs to be enlarged.
In some embodiments, referring to fig. 1, 2, 5, 7 to 9, a closed-in-place self-locking structure is disposed between at least one of the strip-shaped guide elastic pieces 13 and the corresponding guide groove 103 (first guide groove 103 a).
In some embodiments, referring to fig. 1, 2, 5, and 7, a stroke limiting structure for limiting the maximum stroke of the front shear head 11 away from the rear shear head 12 is disposed between at least one of the bar-shaped guiding elastic pieces 13 and the corresponding guiding groove 103 (second guiding groove 103 b).
In some embodiments, referring to fig. 1, 2, 5, 7 to 9 in combination, the mounting cavity 101 is a T-shaped groove formed in the surface of the cutting head, the guide groove 103 is divided into a first guide groove 103a formed in the cavity side wall or the cavity bottom surface of the mounting cavity 101 and a second guide groove 103b located outside the mounting cavity 101, and a closed-in-place self-locking structure is arranged between the first guide groove 103a and the corresponding strip-shaped guide elastic piece 13; a stroke limiting structure for limiting the maximum stroke of the front part 11 of the shear far away from the rear part 12 of the shear is arranged between the second guide groove 103b and the corresponding strip-shaped guide elastic sheet 13. In fig. 1, 2, 3, and 7, the second guide grooves 103b are distributed on both sides of the mounting cavity 101.
Specifically, in some embodiments, referring to fig. 7 to 9 in combination, the closed-in-place self-locking structure includes a hook portion 131 disposed at a free end of the strip-shaped guide elastic sheet 13 and a positioning slot 103c disposed in the corresponding guide slot 103 (first guide slot 103a), where the hook portion 131 is adapted to be snapped into or withdrawn from the positioning slot 103c under an elastic force when being closed.
When the front part 11 of the cutting head is pulled to make the front part 11 far away from the rear part 12 of the cutting head, the hanging buckle part 131 is separated from the positioning clamping groove 103c under the action of elastic force and pulling force, or the front part 11 of the cutting head can be lightly pressed to make the hanging buckle part 131 slightly tilt and leave the positioning clamping groove 103c (see fig. 9), and the whole strip-shaped guide elastic sheet 13 slides forwards along the first guide groove 103 a; on the contrary, the front part 11 of the cutting head is close to the rear part 12 of the cutting head, in the process of closing the whole cutting head, the whole strip-shaped elastic sheet slides backwards in a strict first guiding way, and when the front part 11 of the cutting head is in butt joint with the rear part 12 of the cutting head, the hanging and buckling part 131 is just clamped into the positioning clamping groove 103c (see fig. 8). In practical implementation, the hooking portion 131 may be formed by bending the free end of the strip-shaped guiding elastic piece 13.
Specifically, in some embodiments, referring to fig. 1, fig. 2, fig. 5, and fig. 7 in combination, the stroke limiting structure includes a protrusion 132 disposed on the bar-shaped guide elastic piece 13 and a limiting portion 122 disposed in the corresponding guide groove 103 (the second guide groove 103b), the limiting portion 122 is disposed at the foremost end of the guide groove 103 and blocks the protrusion 132, and the protrusion 132 can prevent the bar-shaped guide elastic piece 13 from coming out of the corresponding guide groove 103. In the actual implementation process, the bulge can be formed through a metal plate, and the bulge is convexly arranged on the front surface or the back surface of the strip-shaped guide elastic piece and also can be arranged on the side surface of the strip-shaped guide elastic piece.
With reference to fig. 1, 2, 5, and 7, the second guide slot 103b is disposed on the rear portion 12 of the cutting head, a mounting entrance for the strip-shaped guide elastic piece 13 to be mounted in the second guide slot 103b is disposed on the surface of the rear portion 12 of the cutting head, the mounting entrance includes a long entrance 123a for the strip-shaped guide elastic piece 13 to be laterally inserted and an avoidance entrance 123b for the protrusion 132 to enter the second guide slot 103b, the long entrance 123a extends in the same direction as the second guide slot 103b, the avoidance entrance 123b is located on the side of the long entrance 123a, the avoidance entrance 123b is located close to the limiting portion 122, and the avoidance entrance 123b is located behind the limiting portion 122 (if the second guide slot 103b is disposed on the front portion 11 of the cutting head, the avoidance entrance 123b is located in front of the limiting portion 122), the long entrance 123a has a width slightly larger than the thickness of the strip-shaped guide elastic piece 13 but smaller than the width of the strip-shaped guide elastic piece 13, at this time, the protrusion 132 is protruded on the surface of the bar-shaped guide elastic piece 13.
When the strip-shaped guide elastic piece 13 is installed, the guide elastic piece is laterally aligned with the strip-shaped inlet 123a, the protrusion 132 is aligned with the avoidance inlet 123b, and the strip-shaped guide elastic piece 13 can be installed in the second guide groove 103b by pushing.
Preferably, the first guide groove 103a is disposed on the cavity bottom surface of the mounting cavity 101. In the coagulation, cutting and other processes, the other cutting head (also called as a forceps arm) of the cutter head assembly is pressed on the tissue pad 2 of the cutting head, if the first guide groove 103a is arranged on the bottom surface of the mounting cavity 101, the tissue pad 2 is squeezed in the surgical process, and pressure is applied to the strip-shaped elastic sheet in the first guide groove 103a, so that the strip-shaped elastic sheet is pressed in the first guide groove 103a, and meanwhile, the strip-shaped guide elastic sheet 13 in the second guide groove 103b is also pressed by the tissue pad 2 and cannot be separated from the second guide groove 103b, which is beneficial to improving reliability.
In some embodiments, referring to fig. 7, the surface of the scissor head is further provided with an observation window 124 for observing the installation position of the bar-shaped guide elastic piece 13, the observation window 124 is located on an extension line of the strip-shaped entrance 123a, and a shielding portion 125 blocking the side surface of the bar-shaped guide elastic piece 13 is formed between the observation window 124 and the strip-shaped entrance 123a, and the shielding portion 125 is beneficial to preventing the bar-shaped guide elastic piece 13 from being pulled out from the side direction.
In some embodiments, referring to fig. 6, a stopping portion 121 for limiting a limit position in which tissue is loaded backwards is disposed on the rear portion 12 of the cutting head, the stopping portion 121 is disposed in the mounting cavity 101, and an avoiding space 121a for avoiding a cutting edge of the ultrasonic blade is disposed in the middle of the stopping portion 121, where the cutting edge is a structure on another cutting head or a forceps arm.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between.
In the description of the invention, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, components, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, and/or groups thereof.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a shear, set up the installation cavity that is used for installing the tissue pad on the shear, its characterized in that: the tissue pad is arranged in the mounting cavity, the guide connecting structure is arranged between the front part of the shear and the rear part of the shear, the guide connecting structure is used for enabling the front part of the shear to be far away from the rear part of the shear or to be close to the rear part of the shear along the extension direction of the shear, when the front part of the shear is far away from the rear part of the shear, the opening is exposed, and when the front part of the shear is directly butted with the rear part of the shear, the opening is hidden;
the guide connecting structure comprises a guide groove and a strip-shaped guide elastic sheet, the strip-shaped guide elastic sheet is provided with a fixed end and a free end, and the free end of the strip-shaped guide elastic sheet can slidably extend into the guide groove;
the guide groove is arranged on the rear part of the shearing head, and the strip-shaped fixed end is arranged on the front part of the shearing head; or the guide groove is arranged on the front part of the shearing head, and the fixed end of the strip-shaped guide elastic sheet is arranged on the rear part of the shearing head;
and a closed in-place self-locking structure is arranged between at least one strip-shaped guide elastic sheet and the corresponding guide groove.
2. The cutting head of claim 1, wherein: and a stroke limiting structure used for limiting the maximum stroke of the front part of the shear head far away from the rear part of the shear head is arranged between at least one strip-shaped guide elastic sheet and the corresponding guide groove.
3. The cutting head of claim 2, wherein: the mounting cavity is a T-shaped groove formed in the surface of the shear head, the guide groove is divided into a first guide groove formed in the side wall or the bottom surface of the mounting cavity and a second guide groove located outside the mounting cavity, and a closed in-place self-locking structure is arranged between the first guide groove and the corresponding strip-shaped guide elastic sheet; and a stroke limiting structure used for limiting the maximum stroke of the front part of the shear head far away from the rear part of the shear head is arranged between the second guide groove and the corresponding strip-shaped guide elastic sheet.
4. A cutting head according to claim 3, wherein: the closed in-place self-locking structure comprises a hanging and buckling part arranged at the free end of the strip-shaped guide elastic sheet and a positioning clamping groove arranged in the corresponding guide groove, wherein the hanging and buckling part is used for self-adaptive clamping in or out of the positioning clamping groove under the action of elastic force when being closed.
5. The cutting head of claim 4, wherein: the first guide groove is arranged on the bottom surface of the cavity of the mounting cavity.
6. A cutting head according to claim 2 or 3, characterized in that: the stroke limiting structure comprises a protrusion arranged on the strip-shaped guide elastic sheet and a limiting part arranged in the corresponding guide groove, and the limiting part is arranged at the foremost end of the guide groove and blocks the protrusion.
7. The cutting head of claim 1, wherein: the ultrasonic scalpel is characterized in that a blocking part used for limiting the limit position of backward tissue loading is arranged on the rear part of the scissor head, the blocking part is arranged in the installation cavity, and an avoiding space for avoiding the tool tip of the ultrasonic scalpel is formed in the middle of the blocking part.
8. The utility model provides an ultrasonic scalpel, includes cutter arbor subassembly and tool bit subassembly, the tool bit subassembly includes two shear heads, its characterized in that: at least one of the cutting heads is the cutting head of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124121.9A CN112089479B (en) | 2020-10-20 | 2020-10-20 | Shearing head and ultrasonic knife |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124121.9A CN112089479B (en) | 2020-10-20 | 2020-10-20 | Shearing head and ultrasonic knife |
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| CN112089479A CN112089479A (en) | 2020-12-18 |
| CN112089479B true CN112089479B (en) | 2021-09-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114159129B (en) * | 2021-12-03 | 2023-12-22 | 北京安和加利尔科技有限公司 | Shear type ultrasonic knife with replaceable cutter bar |
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| WO2005027756A1 (en) * | 2003-08-22 | 2005-03-31 | Omnisonics Medical Technologies, Inc. | Apparatus and method for an ultrasonic medical device engaging a flexible material |
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| CN203328769U (en) * | 2013-06-18 | 2013-12-11 | 瑞奇外科器械(中国)有限公司 | Clamp drive mechanism of ultrasound knife head and ultrasound knife head |
| CN104224279B (en) * | 2013-06-18 | 2017-04-05 | 瑞奇外科器械(中国)有限公司 | The clamp drive mechanism and ultrasound knife cutter head of ultrasound knife cutter head |
| CN104783866B (en) * | 2015-04-24 | 2017-07-04 | 重庆康美唯外科器械有限公司 | Ultrasound knife knife bar component and its ultrasound knife and ultrasound knife control system |
| KR102012840B1 (en) * | 2017-12-29 | 2019-08-21 | (의료)길의료재단 | High-temperature spray inhalation ultrasonic cutting machine |
| CN109589156B (en) * | 2018-10-31 | 2020-05-05 | 杭州市第一人民医院 | Vibration liver forceps |
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|---|---|---|---|---|
| WO2005027756A1 (en) * | 2003-08-22 | 2005-03-31 | Omnisonics Medical Technologies, Inc. | Apparatus and method for an ultrasonic medical device engaging a flexible material |
| CN101511286A (en) * | 2005-10-14 | 2009-08-19 | 伊西康内外科公司 | Ultrasonic device for cutting and coagulating |
| CN104042268A (en) * | 2013-03-12 | 2014-09-17 | 柯惠Lp公司 | Interchangeable Tip Reload |
| CN110074845A (en) * | 2019-05-16 | 2019-08-02 | 华外医疗器械(上海)有限公司 | The pressure equalizing structure of ultrasound knife cutter head |
| CN210871903U (en) * | 2019-09-29 | 2020-06-30 | 华东数字医学工程研究院 | Ultrasonic scalpel and tissue pad of ultrasonic scalpel |
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| CN112089479A (en) | 2020-12-18 |
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