CN109009413B - High-frequency electrotome with liquid injection structure for endoscope - Google Patents
High-frequency electrotome with liquid injection structure for endoscope Download PDFInfo
- Publication number
- CN109009413B CN109009413B CN201810914178.5A CN201810914178A CN109009413B CN 109009413 B CN109009413 B CN 109009413B CN 201810914178 A CN201810914178 A CN 201810914178A CN 109009413 B CN109009413 B CN 109009413B
- Authority
- CN
- China
- Prior art keywords
- handle
- liquid injection
- injection structure
- opening
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 86
- 239000007924 injection Substances 0.000 title claims abstract description 56
- 238000002347 injection Methods 0.000 title claims abstract description 56
- 230000009471 action Effects 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000003902 lesion Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 210000001035 gastrointestinal tract Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 229940030225 antihemorrhagics Drugs 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012326 endoscopic mucosal resection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002874 hemostatic agent Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 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
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1482—Probes or electrodes therefor having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00482—Digestive system
Abstract
The invention relates to the technical field of endoscopic knives, in particular to a high-frequency electric knife with a liquid injection structure for an endoscope, which comprises the following components: the first handle (1) and the second handle (2) are arranged in a sliding manner, and the second handle reciprocates along the axial direction of the first handle under the action of external force; the tool bit (3) is telescopically arranged in the inner cavity of the outer tube (5), is connected with a power connector (22) on the second handle through a conductive piece (7) and stretches out or retracts into the cavity under the drive of the second handle; the liquid injection structure (4) is arranged at one end of the cavity, which is connected with the cutter head, the liquid injection structure is provided with an opening (41) communicated with the cavity, the cutter head extends out of the cavity through the opening, and an adjustable gap (6) allowing liquid to be sprayed out is formed between the cutter head and the opening. The high-frequency electrotome with the liquid injection structure for the endoscope has the two functions, the liquid injection amount can be adjusted as required, the replacement times of the instrument are less, and the operation time is short.
Description
Technical Field
The invention relates to the technical field of endoscopic knives, in particular to a high-frequency electric knife with a liquid injection structure for an endoscope.
Background
In recent years, with the development of endoscopic technology, endoscopic tissue biopsy, endoscopic mucosal resection and endoscopic mucosal dissection have been widely used, and have a key role in the discovery, diagnosis and treatment of digestive tract hemorrhage, stenosis, polypectomy and digestive tract early cancer. The cutters commonly used in the market at present are mainly Olympic DUAL cutters, IT cutters, HOOK cutters, TT triangular cutters and the like. When the operation is conducted under the guidance of the endoscope, the endoscope firstly finds lesions, the instrument enters the human body from the endoscope forceps channel to perform lesion marking, the instrument is withdrawn from the endoscope forceps channel to be replaced by the injection needle to perform submucosal injection, and a proper electrotome is further used for performing the operation after the injection, so that the operation becomes complicated due to frequent replacement of the instrument in the operation, inconvenience is brought to doctors, the operation time is prolonged, and pain is brought to patients.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the endoscopic electrotome in the prior art has single function, the instrument is frequently replaced in the operation, the operation time is prolonged and pain is brought to the patient, and the endoscopic high-frequency electrotome with the liquid injection structure has the two functions, the liquid injection amount can be adjusted as required, the replacement times of the instrument are less, and the operation time is short.
In order to solve the technical problems, the present invention provides a high-frequency electric knife for an endoscope with a liquid injection structure, comprising:
the first handle and the second handle are arranged in a sliding manner, and the second handle reciprocates along the axial direction of the first handle under the action of external force;
the tool bit is telescopically arranged in the inner cavity of the outer tube, is connected with a power connector on the second handle through a conductive piece and stretches out or retracts into the cavity under the drive of the second handle;
the liquid injection structure is arranged at one end of the cavity, which is connected with the cutter head, the liquid injection structure is provided with an opening communicated with the cavity, the cutter head extends out of the cavity through the opening, and an adjustable gap allowing liquid to be sprayed out is formed between the cutter head and the opening.
The high-frequency electric knife for the endoscope with the liquid injection structure is characterized in that the knife head is provided with a curved surface extending along the axial direction of the knife head, and the distance between the curved surface and the inner wall of the opening is different, so that adjustable gaps with different liquid discharge amounts are formed.
The high-frequency electric knife for the endoscope with the liquid injection structure is characterized in that the opening is a round hole or a square hole, the curved surface is a cambered surface, and the distance between the cambered surface and the inner wall of the opening is set as: gradually decreasing from the middle to the two ends.
The high-frequency electric knife for the endoscope with the liquid injection structure is characterized in that the opening is a round hole or a square hole, the curved surface is an inclined surface, and the distance between the inclined surface and the inner wall of the opening is set as: gradually decreasing from a working end near the tool bit to the other end far away.
The high-frequency electric knife for the endoscope is characterized in that the high-frequency electric knife for the endoscope is provided with a liquid injection structure, the inner diameter of the opening is gradually increased from one end close to the tool bit to the other end far away from the tool bit, the maximum inner diameter is smaller than the inner diameter of the cavity, and the tool bit is columnar.
The high-frequency electric knife for the endoscope with the liquid injection structure comprises a first part in sealing connection with the outer tube and a second part extending into the cavity, wherein the opening is formed on the first part, a liquid channel is formed between the second part and the cutter head, the liquid channel is connected to a liquid injection port on the second handle, and the liquid injection port is connected with a syringe or a syringe pump.
The high-frequency electric knife for the endoscope with the liquid injection structure is characterized in that a fastener is sleeved at the joint of the tool bit and the conductive piece, and the fastener is arranged in the liquid channel and reserved with a liquid flowing space.
The high-frequency electric knife for the endoscope with the liquid injection structure is a ceramic sleeve.
The high-frequency electric knife for the endoscope with the liquid injection structure is characterized in that a protective tube is arranged at one end, close to the outer tube, of the second handle, and the conductive piece extends to the tail end of the cutter head after penetrating out of the protective tube.
The high-frequency electric knife for the endoscope with the liquid injection structure is characterized in that the conductive piece is a steel wire or a power-on wire.
The technical scheme of the invention has the following advantages:
1. the high-frequency electric knife with the liquid injection structure for the endoscope provided by the invention not only can be used normally, but also has the liquid injection function, so that the frequency of replacing instruments in operation is reduced, the operation time is shortened, and the pain to a patient is reduced; and can change the ejection volume of liquid through the position between the trompil of adjustment tool bit and notes liquid structure, satisfy different user demands, make the field of vision in the operation keep clear simultaneously.
2. The high-frequency electric knife for the endoscope with the liquid injection structure has the advantages that the knife head is provided with the curved surface extending along the axis direction of the knife head, and the distance between the curved surface and the inner wall of the opening is different, so that adjustable gaps with different liquid output amounts are formed. Therefore, the liquid outlet amount can be adjusted only by adjusting the distance of the cutter head extending out of the opening, and the device is simple in structure and easy to operate and realize.
3. The high-frequency electric knife with the liquid injection structure for the endoscope is provided by the invention, and the second part of the liquid injection structure extends to the inner part of the cavity, so that the liquid in the liquid channel can be prevented from seeping out through the gap between the liquid injection structure and the outer tube to the greatest extent, and the reliability of the whole device is improved.
4. The high-frequency electric knife with the liquid injection structure for the endoscope, provided by the invention, has the advantages that the connection part of the knife head and the conductive piece is provided with the fastener, so that the connection between the knife head and the conductive piece is more reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a high-frequency electrotome with a liquid injection structure for an endoscope;
FIG. 2 is an enlarged partial schematic view of the high frequency electric knife of FIG. 1 in a use state;
fig. 3 is a partially enlarged schematic view of the high frequency electric knife of fig. 1 in another use state.
Reference numerals illustrate:
1-a first handle; 2-a second handle; 3-a cutter head; 4-a liquid injection structure; 5-an outer tube; 6-gap; 7-a conductive member; 8-liquid channels; 10-a fastener; 20-protecting tube; 11-pull ring; 21-a handle cover; 22-power connection; 23-a liquid injection port; 41-opening holes; 42-a first part; 43-second part.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
One embodiment of a high-frequency electric knife for endoscope with a liquid injection structure as shown in fig. 1-3 comprises a first handle 1 and a second handle 2 which are arranged in a sliding manner, a knife head 3 which is arranged in an inner cavity of an outer tube 5 in a telescopic manner, and a liquid injection structure 4 which is arranged at one end of the cavity connected with the knife head 1. The first handle 1 is a fixed handle with a pull ring 11 formed at the end part, the second handle 2 is a sliding handle with a pull ring formed at the two ends in the vertical axial direction, and the pull ring is convenient to apply force; the sliding handle is axially provided with a cavity allowing the fixed handle to pass through, and the second handle 2 reciprocates along the axial direction of the first handle 1 under the action of external force; the second handle 2 is kept away from the one end shaping of first handle 1 pull ring 11 and has handle lid 21, and power connection 22 is installed to one side of second handle 2 for external high frequency power supply is supplied power for first tool bit 3. The tool bit 3 is connected with a power connector 22 on the second handle 2 through a conductive member 7, and is driven by the second handle 2 to extend or retract into the cavity, and lesions are resected through high-frequency electric cutting after being electrified, wherein the conductive member 7 is a steel wire in the embodiment. The middle of the liquid injection structure 4 is provided with an opening 41 communicated with the cavity, the inner diameter of the opening 41 is smaller than that of the cavity, the cutter head 3 extends out of the cavity through the opening 41, an adjustable gap 6 allowing liquid to be sprayed out is formed between the cutter head 3 and the opening 41, and the flow of liquid to be sprayed out is changed by adjusting the size of the gap 6, so that different operation requirements are met.
The cutter head 3 has a curved surface extending in the axial direction thereof, and the distance between the curved surface and the inner wall of the opening 41 is not uniform, thereby forming an adjustable gap 6 having different amounts of discharged liquid. Specifically, as shown in fig. 2 and 3, the opening 41 is a circular hole, the curved surface is an arc surface, and a distance between the arc surface and an inner wall of the opening 41 is set as: gradually decreasing from the middle to the two ends. That is, the bit 3 is a deformed cylinder whose diameter is smaller in the middle portion than in the both ends, and the diameter becomes gradually larger from the middle portion to the both ends. When the cutter head 2 is positioned in the position shown in fig. 2, that is, the middle part of the cutter head 2 with smaller diameter is positioned in the opening 41, so that a gap formed between the cutter head 2 and the opening 41 is larger, the flow rate of liquid is larger, and the range is closer; when the cutter head 3 is in the position shown in fig. 3, i.e. the end of the cutter head 3 with the larger diameter is located in the opening 41, the gap formed between the cutter head 3 and the opening 41 is smaller, the flow rate of the liquid is smaller, and the range is longer. The second handle 2 is pulled to reciprocate along the axial direction of the first handle 1, so that different parts of the cutter head 3 are correspondingly arranged with the opening 41 of the liquid injection structure 4, the size of the gap 6 is further adjusted, and the controllable flow of the injected liquid is realized.
The liquid injection structure 4 comprises a first part 42 in sealing connection with the outer tube 5 and a second part 43 extending into the cavity, the first part 42 and the second part 43 are integrally formed, the opening 41 is formed on the first part 42, a cylindrical space is formed in the center of the second part 43, and the cutter head 3 penetrates through the cylindrical space and the opening 41; a liquid channel 8 is formed between the second part 43 and the cutter head 3, the liquid channel 8 is connected to a liquid injection port 23 on the second handle 2, and a syringe or a syringe pump is connected to the liquid injection port 23. The syringe or the syringe pump stores water, physiological saline, hemostatic agent, etc. Specifically, annotate liquid structure 4 is the ceramic bushing, and the contact department of ceramic bushing and outer tube 5 is sealing contact, prevents the weeping.
The joint of the cutter head 3 and the conductive member 7 is further sleeved with a fastener 10, the fastener 10 is disposed in the liquid channel 8, and a space for liquid to flow is reserved, i.e. the outer diameter of the fastener 10 is smaller than the inner diameter of the liquid channel 8. The fastener 10 is a sleeve which completely covers the contact surface of the bit 3 and the conductive member 7.
The second handle 2 is provided with a protective tube 20 at one end near the outer tube 5, and the protective tube 20 may be an insulating tube with a certain strength. The conductive member 7 extends to the end of the cutter head 3 after passing through the protective tube 20.
As an alternative embodiment, the opening 41 is a square hole, the curved surface is an inclined surface, and a distance between the inclined surface and an inner wall of the opening 41 is set as follows: the working end of the cutter head 3 is gradually reduced from the working end to the other end away from the cutter head, namely, the cutter head 3 is cone-shaped.
As another alternative embodiment, the inner diameter of the opening 41 gradually increases from one end close to the cutter head 3 to the other end far away, and the maximum inner diameter is smaller than the inner diameter of the cavity, that is, the opening 41 is a taper hole, and the cutter head 3 is cylindrical.
As an alternative embodiment, the conductive element 7 is an energized wire.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (7)
1. High-frequency electrotome for endoscope with annotate liquid structure, characterized by comprising:
the handle comprises a first handle (1) and a second handle (2) which are arranged in a sliding manner, wherein a handle cover (21) is formed at one end, far away from the first handle (1), of the second handle (2), and the second handle (2) moves back and forth along the axial direction of the first handle (1) under the action of external force;
the tool bit (3) is telescopically arranged in the inner cavity of the outer tube (5), and the tool bit (3) is connected with a power connector (22) on the second handle (2) through a conductive piece (7) and stretches out or retracts into the cavity under the drive of the second handle (2);
the liquid injection structure (4) is arranged at one end of the cavity, which is connected with the cutter head (3), the liquid injection structure (4) is provided with an opening (41) communicated with the cavity, the cutter head (3) extends out of the cavity through the opening (41), and an adjustable gap (6) allowing liquid to be sprayed out is formed between the cutter head (3) and the opening (41);
the tool bit (3) is provided with a curved surface extending along the axial direction of the tool bit, the opening (41) is a round hole or a square hole, the curved surface is an arc surface, and the distance between the arc surface and the inner wall of the opening (41) is set as: gradually decreasing from the middle to the two ends.
2. The high-frequency electric knife for endoscope having liquid injection structure according to claim 1, characterized in that the distance between the curved surface and the inner wall of the opening (41) is not uniform, thereby forming an adjustable gap (6) with different liquid discharge amounts.
3. The high-frequency electric knife for endoscope with liquid injection structure according to claim 1 or 2, characterized in that the liquid injection structure (4) comprises a first part (42) connected with the outer tube (5) in a sealing way and a second part (43) extending into the cavity, the opening (41) is formed on the first part (42), a liquid channel (8) is formed between the second part (43) and the knife head (3), the liquid channel (8) is connected to a liquid injection port (23) on the second handle (2), and a syringe or a syringe pump is connected at the liquid injection port (23).
4. A high-frequency electric knife for endoscope with liquid injection structure according to claim 3, characterized in that a fastener (10) is further sleeved at the joint of the knife head (3) and the conductive piece (7), the fastener (10) is arranged in the liquid channel (8), and a space for liquid flow is reserved.
5. The high-frequency electric knife for endoscope having liquid injection structure according to any one of claims 1, 2 and 4, characterized in that said liquid injection structure (4) is a ceramic sleeve.
6. The high-frequency electric knife with the liquid injection structure according to any one of claims 1, 2 and 4, wherein a protective tube (20) is arranged at one end of the second handle (2) close to the outer tube (5), and the conductive piece (7) extends to the tail end of the knife head (3) after penetrating out of the protective tube (20).
7. The high-frequency electric knife for endoscope with liquid injection structure according to any one of claims 1, 2 and 4, characterized in that the conductive member (7) is a steel wire or an energizing wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810914178.5A CN109009413B (en) | 2018-08-13 | 2018-08-13 | High-frequency electrotome with liquid injection structure for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810914178.5A CN109009413B (en) | 2018-08-13 | 2018-08-13 | High-frequency electrotome with liquid injection structure for endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109009413A CN109009413A (en) | 2018-12-18 |
| CN109009413B true CN109009413B (en) | 2024-02-06 |
Family
ID=64632892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810914178.5A Active CN109009413B (en) | 2018-08-13 | 2018-08-13 | High-frequency electrotome with liquid injection structure for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109009413B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111227899A (en) * | 2020-01-15 | 2020-06-05 | 上海交通大学 | Grinding power device for assisting hip arthroscopy surgical robot |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB671853A (en) * | 1948-11-30 | 1952-05-14 | British Thomson Houston Co Ltd | Improvements in and relating to atomizing nozzles |
| CN2208169Y (en) * | 1994-12-16 | 1995-09-20 | 王晓宇 | Low-pressure proportional control fuel burner |
| JP2000346231A (en) * | 1999-06-07 | 2000-12-15 | Tgk Co Ltd | Pilot-operated flow rate control valve |
| JP2009254650A (en) * | 2008-04-18 | 2009-11-05 | Fujinon Corp | High-frequency treatment instrument |
| CN201394053Y (en) * | 2009-04-03 | 2010-02-03 | 曲文才 | Efficient microwave scalpel |
| JP2013111308A (en) * | 2011-11-30 | 2013-06-10 | Hoya Corp | High frequency treatment instrument for endoscope |
| CN104783868A (en) * | 2014-01-20 | 2015-07-22 | 北京安和加利尔科技有限公司 | Ultrasonic scalpel bar with replaceable scalpel head |
| CN105434038A (en) * | 2015-12-15 | 2016-03-30 | 安瑞医疗器械(杭州)有限公司 | Multifunctional high-frequency tool for endoscope |
| CN206534680U (en) * | 2016-10-13 | 2017-10-03 | 北京汇福康医疗技术股份有限公司 | A kind of calculus plugging device |
| CN107753076A (en) * | 2017-11-16 | 2018-03-06 | 北京安和加利尔科技有限公司 | A kind of suture and there is its push pin and mounting structure |
| CN108272503A (en) * | 2018-03-07 | 2018-07-13 | 南京微创医学科技股份有限公司 | It is a kind of can binary channels fluid injection bipolar high frequency electric knife |
| CN209186932U (en) * | 2018-08-13 | 2019-08-02 | 北京安和加利尔科技有限公司 | A kind of scope electric knife with fluid-filling structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6726685B2 (en) * | 2001-06-06 | 2004-04-27 | Oratec Interventions, Inc. | Intervertebral disc device employing looped probe |
| JP4460257B2 (en) * | 2003-10-02 | 2010-05-12 | 富士フイルム株式会社 | Coating rod and manufacturing method thereof |
| US7674240B2 (en) * | 2005-12-20 | 2010-03-09 | Abbott Cardiovascular Systems Inc. | Method and apparatus for controlled vessel occlusion |
| CA2869904C (en) * | 2012-04-19 | 2020-04-21 | Fractyl Laboratories, Inc. | Systems for expanding tissue prior to energy ablation |
| ITMI20132133A1 (en) * | 2013-12-19 | 2015-06-20 | Vir Valvoindustria Ing Rizzio S P A | DYNAMIC BALANCING VALVE FOR PRESSURE INDEPENDENT FLOW CONTROL |
-
2018
- 2018-08-13 CN CN201810914178.5A patent/CN109009413B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB671853A (en) * | 1948-11-30 | 1952-05-14 | British Thomson Houston Co Ltd | Improvements in and relating to atomizing nozzles |
| CN2208169Y (en) * | 1994-12-16 | 1995-09-20 | 王晓宇 | Low-pressure proportional control fuel burner |
| JP2000346231A (en) * | 1999-06-07 | 2000-12-15 | Tgk Co Ltd | Pilot-operated flow rate control valve |
| JP2009254650A (en) * | 2008-04-18 | 2009-11-05 | Fujinon Corp | High-frequency treatment instrument |
| CN201394053Y (en) * | 2009-04-03 | 2010-02-03 | 曲文才 | Efficient microwave scalpel |
| JP2013111308A (en) * | 2011-11-30 | 2013-06-10 | Hoya Corp | High frequency treatment instrument for endoscope |
| CN104783868A (en) * | 2014-01-20 | 2015-07-22 | 北京安和加利尔科技有限公司 | Ultrasonic scalpel bar with replaceable scalpel head |
| CN105434038A (en) * | 2015-12-15 | 2016-03-30 | 安瑞医疗器械(杭州)有限公司 | Multifunctional high-frequency tool for endoscope |
| CN206534680U (en) * | 2016-10-13 | 2017-10-03 | 北京汇福康医疗技术股份有限公司 | A kind of calculus plugging device |
| CN107753076A (en) * | 2017-11-16 | 2018-03-06 | 北京安和加利尔科技有限公司 | A kind of suture and there is its push pin and mounting structure |
| CN108272503A (en) * | 2018-03-07 | 2018-07-13 | 南京微创医学科技股份有限公司 | It is a kind of can binary channels fluid injection bipolar high frequency electric knife |
| CN209186932U (en) * | 2018-08-13 | 2019-08-02 | 北京安和加利尔科技有限公司 | A kind of scope electric knife with fluid-filling structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109009413A (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11832874B2 (en) | Tissue extraction devices and methods | |
| EP1715910B1 (en) | Endoscopic multi-lumen devices and related methods of use | |
| JP3602794B2 (en) | Multi-function telescoping instrument | |
| US9610120B2 (en) | High-frequency treatment tool for endoscope | |
| US11071579B2 (en) | Bipolar cutting and hemostasis blade system | |
| EP3785654B1 (en) | Multifunctional high-frequency electric knife | |
| CN105395251B (en) | A kind of scope electric knife | |
| EP3212101B1 (en) | Telescoping device with saline irrigation line | |
| CN113317865B (en) | Expanding device for endoscope | |
| US11446080B2 (en) | Surgical device and methods | |
| WO2022007732A1 (en) | High-frequency tool having multiple functions | |
| CN110730636B (en) | Mixing knife for endoscope | |
| JP2018525130A (en) | Tissue ablation device | |
| CN109009413B (en) | High-frequency electrotome with liquid injection structure for endoscope | |
| CN209186932U (en) | A kind of scope electric knife with fluid-filling structure | |
| CN113081245A (en) | Multifunctional incision knife | |
| CN215534963U (en) | Multifunctional incision knife | |
| CN217488829U (en) | Bipolar and double-injection cutting knife | |
| CN215534964U (en) | Multifunctional incision knife | |
| CN211583469U (en) | Single-channel high-frequency electrotome |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |