CN113057728B - High-frequency electric appliance matched with endoscope for use - Google Patents
High-frequency electric appliance matched with endoscope for use Download PDFInfo
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- CN113057728B CN113057728B CN202110156531.XA CN202110156531A CN113057728B CN 113057728 B CN113057728 B CN 113057728B CN 202110156531 A CN202110156531 A CN 202110156531A CN 113057728 B CN113057728 B CN 113057728B
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- 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
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- 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
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- 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
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
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Abstract
The invention belongs to the technical field of medical instruments, and particularly relates to a high-frequency electric instrument matched with an endoscope for use, which comprises a thumb ring, a first push-pull ring, a second push-pull ring and a connecting rod, wherein the first push-pull ring comprises an injection interface, the second push-pull ring comprises an electrode base, an electrode and a conductive elastic sheet are arranged in the electrode base, a metal catheter is arranged in the injection interface, the electrode is electrically connected with the metal catheter through the conductive elastic sheet, an insulator is arranged at the lower end of a sheath tube, a needle knife penetrates through the insulator, a central inner cavity which is communicated up and down is arranged on the needle knife, an end cap is arranged at the lower part of the needle knife, the lower end of the needle knife protrudes out of the end cap, and the needle knife is connected with the metal catheter. The purpose is as follows: the invention has the functions of two instruments, namely an injection needle and a high-frequency knife, through the needle knife provided with the vertically-through central inner cavity, and can select the instruments with different functions according to different conditions in the operation, thereby greatly reducing the instrument replacement frequency in the operation process, improving the operation efficiency and relieving the pain of patients.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a high-frequency electric instrument matched with an endoscope for use.
Background
With the development of endoscopic technology and other related technologies, treatment and screening of early cancer of digestive tract under endoscope has become the treatment of the first choice at present. The conventional digestive tract early cancer treatment process at present often needs a plurality of instruments to be matched. For example: firstly, the injection needle is used for dyeing and marking or injecting at the pathological change position to enable the pathological change position to swell, then an electrotome is used for excision or stripping, and finally a hemostatic clamp or the electrotome or the injection needle is used for suture or hemostasis. The operation process is complicated, the instruments are frequently replaced, the operation efficiency is low, and the requirement on the professional skills of doctors is high. The replacement of the instruments increases patient pain and the cost of the surgery is relatively high.
In order to solve the problems, the invention provides a high-frequency electric instrument matched with an endoscope for use, and the instrument has the functions of an injection needle and a high-frequency knife. The instrument with different functions can be selected according to different conditions in the operation, thereby greatly reducing the instrument replacement frequency in the operation process, improving the operation efficiency and relieving the pain of patients.
Disclosure of Invention
The purpose of the invention is: the invention provides a high-frequency electric appliance matched with an endoscope, which has the functions of an injection needle and a high-frequency knife by a needle knife provided with a vertically-through central inner cavity, can select appliances with different functions according to different conditions in an operation, greatly reduces the appliance replacement frequency in the operation process, improves the operation efficiency and relieves the pain of a patient.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a high-frequency electric apparatus that cooperation endoscope used, includes thumb ring, handle, first push-and-pull ring, second push-and-pull ring and connecting rod, the connecting rod lower extreme has connected gradually nut, pillar and sheath pipe, first push-and-pull ring includes the injection interface, second push-and-pull ring includes the electrode base, install electrode and electrically conductive shell fragment in the electrode base, install the metal catheter in the injection interface, the electrode is connected with the metal catheter electricity through electrically conductive shell fragment, the insulator is installed to sheath pipe lower extreme, wear to be equipped with the needle sword in the insulator, the central authorities inner chamber that link up from top to bottom is seted up on the needle sword, the lower part of needle sword is equipped with the end cap, the diameter size of end cap is greater than the diameter size of needle sword, the lower extreme protrusion of needle sword is in the end cap, needle sword and metal catheter connection.
The sheath is made of a heat-resistant high polymer material.
Still install in the sheath and annotate the liquid inner tube, annotate the liquid inner tube and include inlayer, wire and coating from inside to outside, the upper end cladding of annotating the liquid inner tube is at the metal pipe lower extreme, the lower extreme cladding of annotating the liquid inner tube is in needle sword upper end, the upper and lower both ends of annotating the wire of liquid inner tube all outwards extend, extend the scope of inlayer and coating beyond the formation extension, the extension cladding of annotating liquid inner tube upper end is in the lower part of metal pipe, the extension cladding of annotating liquid inner tube lower extreme is on the upper portion of needle sword, still the cladding has first connecting pipe on the extension at notes liquid inner tube both ends, still the cladding has the second connecting pipe on needle sword upper end and the metal pipe, needle sword and metal pipe are respectively through two second connecting pipe fixed mounting on annotating the liquid inner tube.
Still install the package in the sheath and mould spring hose, the package is moulded spring hose and is moulded the layer and be located the package and mould intraformational metal spring pipe including the package, the upper end cladding that spring hose was moulded to the package is at the metal catheter lower extreme, the lower extreme cladding that spring hose was moulded to the package is in needle sword upper end, the upper and lower both ends that spring hose's metal spring pipe was moulded to the package all outwards extend and form the extension, the extension cladding of metal spring pipe upper end is in the lower part of metal catheter, the extension cladding of metal spring pipe lower extreme is on the upper portion of needle sword, it has first connecting pipe still to clad on the extension at metal spring pipe both ends, it has the second connecting pipe still to clad on needle sword upper end and the metal catheter, needle sword and metal catheter are respectively through two second connecting pipe fixed mounting on the spring hose is moulded to the package.
The plastic-coated layer of the plastic-coated spring hose is made of a heat-resistant high polymer material.
Still install in the sheath and weave the pipe, weave including the package mould the layer and be located the package and mould intraformational metallic braid layer in the pipe, the upper end cladding of weaving the pipe is at the metallic braid lower extreme, the lower extreme cladding of weaving the pipe is in needle sword upper end, the upper and lower both ends of weaving the metallic braid layer of pipe all outwards extend and form the extension, the extension cladding of metallic braid upper end is in the lower part of metallic braid, the extension cladding of metallic braid lower extreme is on the upper portion of needle sword, it has first connecting pipe still to clad on the extension at metallic braid both ends, it has the second connecting pipe still to clad on needle sword upper end and the metallic braid, needle sword and metallic braid are respectively through two second connecting pipe fixed mounting on weaving the pipe.
The plastic coating layer of the braided catheter is made of a heat-resistant high polymer material.
The heat-resistant high polymer material comprises polytetrafluoroethylene, fluorinated ethylene propylene, tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer and polyether ether ketone.
The distance from the lower end of the needle knife 30 protruding out of the end cap 31 is 0.1-1.5mm, the outer diameter of the needle knife 30 is 0.2-1.2mm, and the outer diameter of the end cap 31 is 0.6-2.9mm.
The connecting rod and the second push-pull ring are detachably mounted on the first push-pull ring. By the aid of the structural design, the problem that poor conduction is caused by the fact that the electrode and the lead are in contact in a sliding friction mode due to relative displacement in use in the market can be avoided, and the stability of conductive contact is facilitated.
The invention adopting the technical scheme has the advantages that:
1. the invention has the functions of two instruments, namely an injection needle and a high-frequency knife, through the needle knife provided with the vertically-through central inner cavity, and can select the instruments with different functions according to different conditions in the operation, thereby greatly reducing the instrument replacement frequency in the operation process, improving the operation efficiency and relieving the pain of patients;
2. through the end cap with the diameter size larger than that of the needle knife, the needle knife is made to penetrate into the mucous membrane tissue (the end cap can enter the mucous membrane tissue and can be remained outside the mucous membrane tissue) during injection, and then the injection device is used for injecting the mucous membrane tissue through the injection interface, the metal catheter, the liquid injection inner tube and the needle knife, so that the lower layer of the mucous membrane tissue is bulged, the end cap has a limiting function, and the end cap is prevented from entering the mucous membrane tissue;
3. when the cutting, pierce the mucosa tissue with the needle sword (the end cap also can creep into in the mucosa layer, carry out the circular telegram cutting to the mucosa tissue), and promote the end cap and get into the mucosa tissue, because the external diameter of end cap is far greater than the external diameter of needle sword head end, the end cap can prop up the mucosa tissue and form a hollowing region, guarantee that the distal end of needle sword does not contact with the mucosa tissue, like this when the cutting, loading through the electrode to the power supply, electrically conductive shell fragment, annotate the wire of liquid inner tube and carry out the circular telegram back to the needle sword, the distal end of needle sword can not discharge to the mucosa tissue, thereby avoid the risk of puncturing.
4. The electrode and the injection interface are respectively designed on the first push-pull ring and the second push-pull ring, the first push-pull ring and the second push-pull ring are fixed together after assembly, relative displacement does not exist during movement, integral movement is achieved, and the contact form is static friction. Therefore, the problem that poor conduction is caused by the fact that the electrode and the lead in the market are in contact in a sliding friction mode due to relative displacement in use can be avoided, and the stability of conductive contact is facilitated.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural view of an embodiment of a high frequency electrical instrument for use with an endoscope in accordance with the present invention;
FIG. 2 is a schematic sectional view of a thumb ring, a handle, a first push-pull ring and a second push-pull ring of an embodiment of a high frequency electrical apparatus for use with an endoscope, according to the present invention;
FIG. 3 is a schematic sectional view showing the sheath tube, the first connecting tube, the second connecting tube, the inner liquid injection tube, the insulator, the needle-knife and the end cap in the high-frequency electric apparatus according to the embodiment of the present invention used with an endoscope;
FIG. 4 is a schematic diagram of a needle knife cutting configuration in an embodiment of a high frequency electrical apparatus for use with an endoscope in accordance with the present invention;
the main element symbols are as follows:
a thumb ring 1, a handle 10, a first push-pull ring 11, an injection interface 110, a second push-pull ring 12, an electrode base 120, an electrode 1201, a conductive shrapnel 1202,
A connecting rod 13, a screw cap 14, a protective tube 15, a sheath tube 16,
A metal conduit 2, a first connecting pipe 21, a second connecting pipe 22, an inner layer 231, a lead wire 232, a coating layer 233,
A hollow area 41, mucosal tissue 42.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 4, the high-frequency electric apparatus used in cooperation with an endoscope of the present invention includes a thumb ring 1, a handle 10, a first push-pull ring 11, a second push-pull ring 12 and a connecting rod 13, a nut 14, a protection tube 15 and a sheath tube 16 are sequentially connected to a lower end of the connecting rod 13, the first push-pull ring 11 includes an injection port 110, the second push-pull ring 12 includes an electrode base 120, an electrode 1201 and a conductive elastic sheet 1202 are installed in the electrode base 120, a metal catheter 2 is installed in the injection port 110, the electrode 1201 is electrically connected to the metal catheter 2 through the conductive elastic sheet 1202, an insulator 3 is installed at a lower end of the sheath tube 16, a needle knife 30 penetrates through the insulator 3, a central inner cavity penetrating up and down is formed in the needle knife 30, an end cap 31 is disposed at a lower portion of the needle knife 30, a diameter of the end cap 31 is larger than a diameter of the needle knife 30, a lower end of the needle knife 30 protrudes out of the end cap 31, and the needle knife 30 is connected to the metal catheter 2.
The sheath 16 is made of a heat-resistant polymer material.
An injection inner tube is further installed in the sheath tube 16, the injection inner tube comprises an inner layer 231, a lead 232 and a coating layer 233 from inside to outside, the upper end of the injection inner tube is coated at the lower end of the metal guide tube 2, the lower end of the injection inner tube is coated at the upper end of the needle knife 30, the upper end and the lower end of the lead 232 of the injection inner tube both extend outwards, an extension part is formed outside the range of the extension layer 231 and the coating layer 233, the extension part at the upper end of the injection inner tube is coated at the lower part of the metal guide tube 2, the extension part at the lower end of the injection inner tube is coated at the upper part of the needle knife 30, a first connecting tube 21 is further coated on the extension parts at the two ends of the injection inner tube, a second connecting tube 22 is further coated at the upper end of the needle knife 30 and the metal guide tube 2, and the needle knife 30 and the metal guide tube 2 are fixedly installed on the injection inner tube through the two second connecting tubes 22 respectively.
Still install in sheath pipe 16 and wrap and mould spring hose, the spring hose is moulded to the package and is moulded the layer and be located the plastic intraformational metal spring pipe of package including the package, the upper end cladding that the spring hose was moulded to the package is at 2 lower extremes of metal catheter, the lower extreme cladding that the spring hose was moulded to the package is in the upper end of needle sword 30, the upper and lower both ends that the spring hose was moulded to the package all outwards extend and form the extension, the extension cladding of metal spring pipe upper end is in the lower part of metal catheter 2, the extension cladding of metal spring pipe lower extreme is on the upper portion of needle sword 30, still the cladding has first connecting pipe 21 on the extension at metal spring pipe both ends, it has second connecting pipe 22 to go back the cladding on needle sword 30 upper end and the metal catheter 2, needle sword 30 and metal catheter 2 are respectively through two second connecting pipe 22 fixed mounting on the spring hose is moulded to the package.
The plastic-coated layer of the plastic-coated spring hose is made of a heat-resistant high polymer material.
Still install in sheath pipe 16 and weave the pipe, weave including the package in the pipe mould the layer and be located the package and mould intraformational metallic braid, the upper end cladding of weaving the pipe is at 2 lower extremes of metallic catheter, the lower extreme cladding of weaving the pipe is in needle sword 30 upper end, the upper and lower both ends of weaving the metallic braid of pipe all outwards extend and form the extension, the extension cladding of metallic braid upper end is in the lower part of metallic catheter 2, the extension cladding of metallic braid lower extreme is on the upper portion of needle sword 30, it has first connecting pipe 21 still to clad on the extension at metallic braid both ends, it has second connecting pipe 22 still to clad on needle sword 30 upper end and the metallic catheter 2, needle sword 30 and metallic catheter 2 are respectively through two second connecting pipe 22 fixed mounting on weaving the pipe. The knitting method includes single-thread knitting, double-thread knitting, multi-thread knitting and the like, the cross-sectional shape of the metal knitting yarn is not limited, the metal knitting yarn includes round yarn, flat yarn and the like, and the knitting density is not limited.
The plastic coating layer of the braided catheter is made of heat-resistant high polymer material.
The heat-resistant high polymer material comprises polytetrafluoroethylene, polyperfluoroethylpropylene, tetrafluoroethylene-perfluoroalkoxy vinylether copolymer and polyetheretherketone.
The distance from the lower end of the needle knife 30 to the end cap 31 is 0.1-1.5mm, the outer diameter of the needle knife 30 is 0.2-1.2mm, and the outer diameter of the end cap 31 is 0.6-2.9mm. The needle knife 30 may be integrally formed with the end cap 31, or may be formed by assembling two parts, and the assembling form includes welding, crimping, and the like.
The connecting rod 13 and the second push-pull ring 12 are detachably mounted on the first push-pull ring 11. The electrode 1201 and the injection port 110 are respectively arranged on the first push-pull ring 11 and the second push-pull ring 12, and after assembly, the first push-pull ring 11 and the second push-pull ring 12 are fixed together, so that relative displacement does not exist during movement, the whole movement is carried out, and the contact form is static friction.
In this embodiment, during injection, the needle-knife 30 penetrates into the mucosal tissue, and since the diameter of the end cap 31 is larger than that of the needle-knife 30, the end cap 31 is located outside the mucosal tissue 42, and at this time, the injection device can inject the mucosal tissue through the injection port 110, the metal catheter 2, the inner liquid injection tube and the needle-knife 30, so that the lower layer of the mucosal tissue forms a bulge;
when cutting is needed, the needle knife 30 is punctured into the mucous membrane tissue 42 (the end cap 31 can also be drilled into the mucous membrane layer to cut the mucous membrane tissue in an electrifying mode), and the end cap 31 is pushed to enter the mucous membrane tissue, because the outer diameter of the end cap 31 is far larger than that of the head end of the needle knife 30, the end cap 31 can prop up the mucous membrane tissue to form a hollow area, the far end of the needle knife 30 is guaranteed not to be in contact with the mucous membrane tissue, and therefore when cutting is conducted, after the needle knife 30 is electrified through a wire 232 which is loaded with power and passes through the electrode 1201, the conductive elastic sheet 1202 and the liquid injection inner tube, the far end of the needle knife 30 cannot discharge electricity to the mucous membrane tissue, and therefore the risk of breakdown is avoided;
the high-frequency electric apparatus used with the endoscope according to the present invention has been described in detail. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a high frequency electric apparatus that cooperation endoscope used, includes thumb ring (1), handle (10), first push-and-pull ring (11), second push-and-pull ring (12) and connecting rod (13), connecting rod (13) lower extreme has connected gradually nut (14), pillar (15) and sheath pipe (16), its characterized in that: the first push-pull ring (11) comprises an injection port (110), the second push-pull ring (12) comprises an electrode base (120), an electrode (1201) and a conductive elastic sheet (1202) are installed in the electrode base (120), a metal catheter (2) is installed in the injection port (110), the electrode (1201) is electrically connected with the metal catheter (2) through the conductive elastic sheet (1202), an insulator (3) is installed at the lower end of the sheath tube (16), a needle knife (30) penetrates through the insulator (3), a central inner cavity which is through up and down is formed in the needle knife (30), an end cap (31) is arranged on the lower portion of the needle knife (30), the diameter of the end cap (31) is larger than that of the needle knife (30), the lower end of the needle knife (30) protrudes out of the end cap (31), the needle knife (30) is connected with the metal catheter (2), the distance of the lower end of the needle knife (30) protruding out of the end cap (31) is 0.1-1.5mm, the outer diameter of the needle knife (30) is 0.2-1.2mm, and the outer diameter of the needle knife (30) is 0.6-1.2 mm, and the outer diameter of the end cap is 9.6 mm.
2. An endoscopic-used high frequency electrical instrument according to claim 1, wherein: the sheath (16) is made of a heat-resistant polymer material.
3. An endoscopic-used high frequency electrical instrument according to claim 1, wherein: still install in sheath pipe (16) and annotate the liquid inner tube, it includes inlayer (231), wire (232) and coating (233) from inside to outside to annotate the liquid inner tube, the upper end cladding of annotating the liquid inner tube is at metal catheter (2) lower extreme, the lower extreme cladding of annotating the liquid inner tube is in needle sword (30) upper end, the upper and lower both ends of annotating the wire (232) of liquid inner tube all outwards extend, extend the extension outside the scope of inlayer (231) and coating (233) and form the extension, the extension cladding of annotating liquid inner tube upper end is in the lower part of metal catheter (2), the extension cladding of annotating liquid inner tube lower extreme is on the upper portion of needle sword (30), it has first connecting pipe (21) still to coat on the extension at liquid inner tube both ends to annotate, it has second connecting pipe (22) still to coat on needle sword (30) upper end and metal catheter (2), needle sword (30) and metal catheter (2) are respectively through two second connecting pipe (22) fixed mounting on annotating the liquid inner tube.
4. An endoscopic-used high frequency electrical instrument according to claim 1, wherein: still install in sheath pipe (16) and wrap and mould spring hose, the spring hose is moulded to the package and is moulded the layer and be located the intraformational metal spring pipe is moulded to the package, the upper end cladding that spring hose was moulded to the package is at metal pipe (2) lower extreme, the lower extreme cladding that spring hose was moulded to the package is in needle sword (30) upper end, the upper and lower both ends that spring hose's metal spring pipe was moulded to the package all outwards extend and form the extension, the extension cladding of metal spring pipe upper end is in the lower part of metal pipe (2), the extension cladding of metal spring pipe lower extreme is on the upper portion of needle sword (30), it has first connecting pipe (21) still to clad on the extension at metal spring pipe both ends, it has second connecting pipe (22) still to clad on needle sword (30) upper end and metal pipe (2), needle sword (30) and metal pipe (2) are respectively through two second connecting pipe (22) fixed mounting on the spring hose is moulded to the package.
5. An endoscopic-used high frequency electrical instrument according to claim 4, wherein: the plastic-coated layer of the plastic-coated spring hose is made of a heat-resistant high polymer material.
6. An endoscopic-used high frequency electrical instrument according to claim 1, wherein: still install in sheath pipe (16) and weave the pipe, weave including the package mould the layer and be located the package and mould intraformational metallic braid layer in the pipe, the upper end cladding of weaving the pipe is at metallic catheter (2) lower extreme, the lower extreme cladding of weaving the pipe is in needle sword (30) upper end, the upper and lower both ends of weaving the metallic braid layer of pipe all outwards extend and form the extension, the extension cladding of metallic braid upper end is in the lower part of metallic catheter (2), the extension cladding of metallic braid lower extreme is on the upper portion of needle sword (30), it has first connecting pipe (21) still to clad on the extension at metallic braid both ends, it has second connecting pipe (22) still to clad on needle sword (30) upper end and metallic catheter (2), needle sword (30) and metallic catheter (2) are respectively through two second connecting pipe (22) fixed mounting on weaving the pipe.
7. An endoscopic-used high frequency electrical instrument according to claim 6, wherein: the plastic-coated layer of the braided catheter is made of a heat-resistant high polymer material.
8. An electrical high frequency instrument for use with an endoscope according to any of claims 2, 5 or 7 and further comprising: the heat-resistant high polymer material comprises polytetrafluoroethylene, fluorinated ethylene propylene, tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer and polyether ether ketone.
9. An endoscopic-used high frequency electrical instrument according to claim 1, wherein: the connecting rod (13) and the second push-pull ring (12) are detachably arranged on the first push-pull ring (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110156531.XA CN113057728B (en) | 2021-02-04 | 2021-02-04 | High-frequency electric appliance matched with endoscope for use |
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| CN202110156531.XA CN113057728B (en) | 2021-02-04 | 2021-02-04 | High-frequency electric appliance matched with endoscope for use |
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| CN113057728B true CN113057728B (en) | 2023-02-28 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379739A (en) * | 2011-08-31 | 2012-03-21 | 南京微创医学科技有限公司 | Winding prevention type multifunctional high-frequency scalpel of endoscope |
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| US8128592B2 (en) * | 2007-07-11 | 2012-03-06 | Apollo Endosurgery, Inc. | Methods and systems for performing submucosal medical procedures |
| JP2017123996A (en) * | 2016-01-13 | 2017-07-20 | Hoya株式会社 | High-frequency treatment instrument for endoscope |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102379739A (en) * | 2011-08-31 | 2012-03-21 | 南京微创医学科技有限公司 | Winding prevention type multifunctional high-frequency scalpel of endoscope |
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