CN114849021B - Visual intubation device and using method thereof - Google Patents
Visual intubation device and using method thereof Download PDFInfo
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- CN114849021B CN114849021B CN202210496452.8A CN202210496452A CN114849021B CN 114849021 B CN114849021 B CN 114849021B CN 202210496452 A CN202210496452 A CN 202210496452A CN 114849021 B CN114849021 B CN 114849021B
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- 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
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- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0113—Mechanical advancing means, e.g. catheter dispensers
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- A61B1/045—Control thereof
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- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/07—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements using light-conductive means, e.g. optical fibres
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- A61M2205/00—General characteristics of the apparatus
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- A61M2205/587—Lighting arrangements
Abstract
The invention provides a visual intubation device and a use method thereof, wherein the visual intubation device comprises a incision knife and a visual guide wire, the incision knife comprises an incision knife operation part and an incision knife insertion part, the incision knife operation part comprises an operation part main body and an operation handle, the incision knife insertion part comprises a guide wire channel, a knife wire channel and a contrast agent channel, and a knife wire of the incision knife is arranged in the knife wire channel; the operation part main body is provided with a guide wire channel port communicated with the guide wire channel and a contrast agent channel port communicated with the contrast agent channel; one side of the visual guide wire is an imaging end, the other side of the visual guide wire is a connector end, the imaging end obtains images through an optical lens and provides illumination, a protective layer wraps the visual guide wire, and the connector end is used for being connected with an imaging controller host. The invention changes the 'blind operation' problem of the existing ERCP intubation, realizes the guide wire insertion work of the pancreaticobiliary duct under the direct vision of the camera, reduces the operation risk and reduces the operation difficulty.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a visual intubation device and a use method thereof.
Background
Endoscopic Retrograde Cholangiopancreatography (ERCP) is a technique in which a duodenoscope is inserted into the descending part of the duodenum to find the duodenal papilla, a contrast catheter is inserted into the opening of the papilla from a biopsy channel, and a contrast medium is injected into the opening of the duodenal papilla to perform x-ray radiography to display the cholangiopancreatography.
Selective intubation is the basis for successful ERCP diagnosis and treatment. Inserting the catheter through the biopsy hole, adjusting the angle of the catheter and lifting the forceps device to make the catheter perpendicular to the opening of the nipple, and inserting the catheter into the nipple. Because the beginning of the duodenal papilla is very narrow, the direct insertion of a catheter into the papilla is difficult, the risk of pancreaticobiliary hemorrhage and perforation is high, and the life of a patient is endangered once the guide wire is used, the current clinic generally inserts a guide wire, the diameter of the guide wire is generally 0.025 inches or 0.035 inches, the guide wire is made of metal, the front end of the guide wire is provided with a soft head, the head of the guide wire is visualized under X-rays, and a doctor inserts the guide wire into the duodenal papilla and enters the right direction (a pancreatic duct or a bile duct), and then inserts the catheter.
At present, a catheter with an incision function (also called a duodenal papilla incision knife) is generally used for inserting and incising a duodenal papilla to enlarge the diameter of a channel, so that a therapeutic apparatus can be conveniently inserted and stones can be conveniently taken out. The middle of the incision knife is provided with a guide wire cavity, and when the incision knife is inserted, the guide wire needs to be placed in the guide wire cavity, so that the incision knife advances along the direction of the guide wire to enter a bile duct or a pancreatic duct. Thus, the current general clinical procedure for ERCP is:
(1) Inserting a duodenoscope into a descending part of duodenum to find a duodenal papilla;
(2) Inserting a guide wire into a biopsy duct of the duodenoscope, and inserting the guide wire into a pancreatic duct or a bile duct through a duodenal papilla under the guidance of X-rays;
(3) Then inserting a duodenal papilla incision knife (keeping the guide wire in the guide wire cavity of the incision knife) along the biopsy duct of the duodenoscope, incising the duodenal papilla to a proper size, and then continuing inserting the incision knife until the duodenal papilla enters the target position of a bile duct or a pancreatic duct;
(4) At this time, the intubation operation is completed, and the doctor can perform subsequent operation with the aid of the guide wire and the incision knife.
In the current operation, when the guide wire is inserted into the pancreatic duct or the bile duct in the second step, the risk is the highest, and the difficulty is the greatest, and the great difficulty limits the development of the ERCP operation. The main risk points are:
(1) The insertion is carried out in a wrong direction, the patient wants to enter the bile duct but enters the pancreatic duct wrongly (or vice versa), so that severe surgical complications such as severe pancreatitis and the like can be caused, and the life of the patient is threatened;
(2) The bile duct or pancreatic duct is not inserted, but the wall of the bile duct or the pancreatic duct is punctured, so that the puncture is caused, and if the puncture cannot be immediately discovered and treated, the life of the patient can be endangered.
The invention provides a visual intubation device used by ERCP (endoscopic retrograde cholangiopancreatography) and a matched intubation method aiming at huge risks in guide wire insertion in ERCP operation.
Disclosure of Invention
Aiming at the problems in the prior art, the technical scheme adopted by the invention for solving the problems in the prior art is as follows:
the utility model provides a visual intubation device, includes incision sword and visual seal wire, its characterized in that: the incision knife comprises an incision knife operating part and an incision knife inserting part, wherein the incision knife operating part comprises an operating part main body, an operating handle connected with one side end part of the operating part main body, a knife wire channel, a guide wire channel and a contrast medium channel which are positioned in the operating part main body, one end of the operating handle is inserted into the knife wire channel and is communicated with a knife wire positioned in the knife wire channel, the operating part main body is provided with a guide wire channel opening communicated with the guide wire channel and a contrast medium channel opening communicated with the contrast medium channel, an electrode connecting point is arranged on the operating part main body close to the end part of the operating handle, one end of the electrode connecting point is inserted into the knife wire channel, the other end of the electrode connecting point is positioned outside the operating part main body, the guide wire channel opening is used for inserting the guide wire into the guide wire channel, the contrast medium channel opening is used for connecting a liquid supply device, injecting the contrast medium or other liquid into the contrast medium channel, and the liquid can flow out from the far end of the incision knife inserting part to play roles of assisting in developing, flushing and the like;
the incision knife inserting part comprises a guide wire channel, a knife wire channel and a contrast agent channel, the guide wire channel is communicated with a guide wire channel opening of the incision knife operating part and used for conveying a guide wire, and the guide wire can be inserted from the guide wire channel opening and advances along the guide wire channel until reaching a far-end outlet; the contrast agent channel is communicated with a contrast agent channel opening positioned at the incision knife operation part and used for conveying contrast agent, a cutting wire of the incision knife is arranged in the cutting wire channel, the cutting wire is exposed outside the incision knife at the far end of the incision knife insertion part and fixedly connected with the far end of the incision knife, the other end of the cutting wire reaches the incision knife operation part along the cutting wire channel and is connected with an operation handle, the far end is one end far away from the incision knife operation part, the cutting wire of the incision knife is exposed out of the incision knife at the far end and is arc-shaped in a loose state, when the operation handle of the incision knife is pulled out, the cutting wire of the arc-shaped part is straightened, so that the far end of the incision knife is driven to be bent, the direction of the far end is adjusted, advancing to bile ducts and pancreatic ducts in different directions is facilitated, when the cutting wire is straightened, the part of the electrode connection point inserted into the cutting wire channel is communicated with the cutting wire, and the electrode connection point is electrified to cut the cutting wire to realize the function of the duodenum;
one side of the visual guide wire is an imaging end, the other side of the visual guide wire is a connector end, the imaging end obtains images through an optical lens and provides illumination, a protective layer wraps the visual guide wire, and the connector end is used for being connected with an imaging controller host.
Electrode tie point one end is the electrode of inserting perpendicularly in the sword silk passageway, and the other end is for being located the outside spherical tie point of operation portion main part, when the incision sword needs the circular telegram, with the cable connection of electrotome host computer this electrode tie point on, arouse the electrotome again for the circular telegram of metal sword silk can cut open the duodenum nipple after the circular telegram. The conductivity of the electrode and the cutter wire is controlled by the operating handle to form a safety interlocking device, and the electrode connecting point and the cutter wire are connected and can be electrified only in the state that the operating handle is pulled out (at the moment, the metal cutter wire is straightened), otherwise, the electrode connecting point and the cutter wire are disconnected and can not be electrified.
The incision knife inserting part is made of soft insulating materials and can be coiled to be convenient to store and operate.
The size of the guide wire channel is matched with that of a common guide wire and the visual guide wire provided by the application, and the traditional ERCP standard guide wire has 2 specifications: 0.035 inches and 0.025 inches, most commonly at 0.035 inches, about 0.89mm, the visualization guidewire has different diameters depending on its structural composition: for the guide wire with a pure optical structure, the diameter can be consistent with that of the traditional guide wire with 0.035 inch, and even can be slightly thinner; the guide wire with the photoelectric mixed structure is limited by a photoelectric sensor (a CMOS chip), is slightly thicker and should be about 1mm to 1.3mm, so that the diameter of the visual guide wire is different from that of a standard guide wire, and the incision knife is different from other incision knives in the prior art.
The cross section of the guide wire channel is circular or C-shaped with an opening at one side, the diameter of the incision knife is thinner while the guidance performance is ensured by the C-shaped opening, and the guide wire can be taken out from the side;
the cross section of the visual guide wire is circular, or one side of the visual guide wire is in an arc shape, the other side of the visual guide wire is in a convex asymmetric shape matched with the C-shaped opening, and the visual guide wire structure in the asymmetric shape is used for limiting the inserted angle of the visual guide wire, so that the target angle observed by the visual guide wire is always consistent with the design intention.
The visual guide wire is of a pure optical structure, the illumination and the image transmission are simultaneously realized by using an optical fiber image transmission bundle, and a protective layer is arranged outside the guide wire and used for protecting internal components; the far end is an optical lens which is connected with the optical fiber image transmission beam and is connected with the imaging controller host through an optical connector, an illumination light source, a light splitting device and a focusing device are arranged in the imaging controller host, light emitted by the illumination light source is reflected by the light splitting device, enters the optical fiber image transmission beam through the focusing device, is emitted from the optical lens and irradiates an observation target to realize illumination, a target image is imaged on the optical fiber image transmission beam through the optical lens, is transmitted into the imaging controller host through the optical fiber image transmission beam, passes through a plurality of focusing devices, and reaches the image sensor after being transmitted through the light splitting device, so that imaging is realized.
The visual guide wire is of a pure optical structure, the image is transmitted by using an optical fiber image transmission bundle and illumination is realized by using an independent illumination optical fiber, a protective layer is arranged outside the guide wire and used for protecting internal components, and the optical lens is arranged at the far end of the guide wire and connected with the optical fiber image transmission bundle; the optical fiber image transmission bundle is connected to an imaging controller host through an optical connector, an illumination light source and an image sensor are arranged in the imaging controller host, an illumination optical fiber is arranged outside the optical fiber image transmission bundle, the illumination light source irradiates light onto the illumination optical fiber, the illumination optical fiber reaches the far end of a guide wire to illuminate a target, a target image is imaged onto the optical fiber image transmission bundle through an optical lens, and the optical fiber image transmission bundle transmits the image into the imaging controller to reach the image sensor, so that imaging is achieved.
The visual guide wire is of a photoelectric mixed structure, a cable is used for transmitting images, illumination is realized by using an illumination optical fiber, a protective layer is arranged outside the guide wire and used for protecting internal components, the illumination optical fiber and the cable are arranged in the protective layer, the far end of the guide wire is an optical lens, and an image sensor is arranged between the optical lens and the cable; the visual guide wire is connected with the imaging controller host through the photoelectric hybrid connector, a lighting source is arranged in the imaging controller host, the lighting source irradiates light onto the lighting optical fiber, the far end of the guide wire is reached through the lighting optical fiber, the target is illuminated, a target image is imaged onto an image sensor behind the optical lens through the optical lens, the image is converted into an electric signal and then transmitted to the imaging controller host through a cable, the connector is the photoelectric hybrid connector, and the optical signal of illumination and the electric signal of the image sensor can be transmitted simultaneously.
The visual guide wire is of a photoelectric mixed structure, a cable is used for transmitting images, illumination is realized by using an illumination optical fiber, a protective layer is arranged outside the visual guide wire and used for protecting internal components, the illumination optical fiber and the cable are arranged in the protective layer, the far end of the guide wire is an optical lens, and an image sensor is arranged between the optical lens and the cable; the visual guide wire is connected with the imaging controller host through two independent optical connectors and an electric connector respectively, wherein a cable is connected with the imaging controller host through the electric connector, the illuminating optical fiber is connected with the imaging controller host through the optical connector, an illuminating light source is arranged in the imaging controller host, the illuminating light source irradiates light onto the illuminating optical fiber, the illuminating optical fiber reaches the far end of the guide wire, a target is illuminated, a target image is imaged on an image sensor behind the optical lens through the optical lens, and the image is converted into an electric signal and then transmitted to the imaging controller host through the cable.
The visual guide wire is of a photoelectric mixed structure, an image is transmitted by using a cable, illumination is realized by using an illumination optical fiber, a protective layer is arranged outside the visual guide wire and used for protecting internal components, an illumination light source, a focusing device, the illumination optical fiber and the cable are arranged in the protective layer, the far end of the visual guide wire is an optical lens, and an image sensor is arranged between the optical lens and the cable; the visual guide wire is connected with the imaging controller host through the electrical connector, the lighting source and the focusing device are arranged in the visual guide wire, the lighting source is connected with the imaging controller host through a cable, the lighting source is controlled to emit light by utilizing an electrical signal of the imaging controller host, so that illumination is realized, a target image is imaged on an image sensor positioned behind the optical lens through the optical lens, and the image is converted into the electrical signal and then transmitted to the imaging controller host through the cable.
When the visual guide wire is used, the visual guide wire advances along a guide wire channel of the cutting knife and reaches the far end of a cutting knife inserting part of the guide wire channel, the visual guide wire reaches the far end of the cutting knife but does not extend out, observation is carried out by means of a gap in front of an optical lens of the guide wire, and accordingly imaging unclear due to the fact that the lens is too close to an observation target is avoided; in the observation process, water can be injected through the contrast agent channel, the visual guide wire lens is cleaned, and the pancreaticobiliary passage in front of the lens is expanded, so that the visual guide wire can observe the target at the front end more clearly.
The use method of the visual intubation device is characterized by comprising the following steps of:
and 5, finishing the intubation work, and carrying out subsequent operation by the doctor with the assistance of the guide wire and the incision knife.
The invention has the following advantages:
1. the problem that the conventional ERCP cannula can only be operated blindly under the irradiation of X rays is solved, the guide wire insertion work of the pancreaticobiliary duct is realized under the direct vision of the camera, the risk of inserting tube errors or perforation in the operation is greatly reduced, the operation difficulty is reduced, and the development amount of the ERCP operation can be improved.
2. Can reduce the irradiation frequency and duration of X-rays in ERCP operation and reduce the ray damage to doctors and patients during the operation.
Drawings
FIG. 1 is a schematic view of the overall structure of a cutting knife;
FIG. 2 is a cross-sectional view of a cutting blade operating portion showing a cutting state of a connecting point between a cutting wire and an electrode;
FIG. 3 is a cross-sectional view of the cutting knife operating section showing the connection point between the cutting wire and the electrode;
FIG. 4 is a schematic view of a configuration of a cutting wire at an insertion portion of the cutting knife in a relaxed state;
FIG. 5 is a schematic view showing a structure of a cutting wire in a cutting blade insertion portion in a tensioned state;
FIG. 6 is a first example of a schematic cross-sectional view of an insertion portion of the incision knife in example 1;
FIG. 7 is a second example of a schematic sectional view of an insertion part of the incision knife in example 2;
FIG. 8 is a third example of a schematic sectional view of an insertion part of the incision knife in example 3;
fig. 9 is a schematic view of a visualization guidewire structure of example 1;
fig. 10 is a schematic view of a visualization guidewire structure of example 2;
fig. 11 is a schematic view of a visualization guidewire structure of example 3;
fig. 12 is a schematic view of example 4 visualization guidewire structure;
fig. 13 is a schematic view of a visualization guidewire structure of example 5;
FIG. 14 is a schematic structural view showing the state of the cooperation of a visual guide wire and a cutting knife;
wherein: 1-an incision knife operation part, 2-an incision knife insertion part, 3-an operation handle, 4-an operation part main body, 5-an electrode connection point, 6-a guide wire channel port, 7-a contrast agent channel port, 8-a knife wire, 9-an electrode and knife wire disconnection state, 10-an electrode and knife wire communication, 11-a knife wire channel, 12-a guide wire channel, 13-a contrast agent channel, 14-a guide wire, 15, an image sensor, 16-a focusing device, 17-a light splitting device, 18-an illumination light source, 19-an optical connector, 20 a protective layer, 21-an optical fiber image transmission bundle, 22-an optical lens, 23-an illumination optical fiber, 24-an optical-electric hybrid connector, 25-a cable, 26-an electric connector, 27-water injection through the contrast agent channel, 28-a visualization guide wire observation range, an A imaging controller host machine and B visualization guide wire.
Detailed Description
As shown in fig. 1-3, the visual intubation device includes a incision knife and a visual guide wire, the incision knife includes an incision knife operation portion 1 and an incision knife insertion portion 2, the incision knife operation portion 1 includes an operation portion main body 4, an operation handle 3 connected to one side end of the operation portion main body 4, a knife wire channel 11, a guide wire channel 12 and a contrast medium channel 13 located in the operation portion main body, one end of the operation handle 3 is inserted into the knife wire channel 11 and is communicated with a knife wire 8 located in the knife wire channel 11, a channel port 6 communicated with the guide wire channel 12 is arranged on the operation portion main body 4, a contrast medium channel port 7 communicated with the contrast medium channel 13 is arranged on the operation portion main body 4 near the operation handle end, one end of the electrode connection port is inserted into the knife wire channel, the other end is located outside the operation portion main body, the channel port 6 is used for inserting 14 into the guide wire channel, the contrast medium channel port 7 is used for connecting with a liquid supply device, the contrast medium channel is inserted into the contrast medium channel 13, and the contrast medium channel 2 or the contrast medium channel is used for assisting in the injection and flows out of the incision knife; the incision knife inserting part 2 comprises a guide wire channel 12, a knife wire channel 11 and a contrast agent channel 13, the guide wire channel 12 is communicated with the guide wire channel opening 6 of the incision knife operating part 1 and is used for guide wire conveying, and a guide wire can be inserted from the guide wire channel opening 6 and advances along the guide wire channel until reaching a far-end outlet; the contrast agent channel 13 is communicated with a contrast agent channel port 7 positioned in the incision knife operating part 1 and used for conveying contrast agent, a knife wire 8 of an incision knife is arranged in the knife wire channel 11, the knife wire 8 is exposed out of the incision knife at the far end of the incision knife inserting part and fixedly connected with the far end of the incision knife, the other end of the knife wire 8 reaches the incision knife operating part along the knife wire channel 11 and is connected with the operating handle 3, wherein the far end is one end far away from the incision knife operating part, as shown in fig. 4, the part of the knife wire of the incision knife, which is exposed out of the incision knife at the far end, is arc-shaped in a loose state, when the operating handle of the incision knife is pulled out, the knife wire of the arc-shaped part is straightened, as shown in fig. 5, so that the far end of the incision knife is driven to bend, the direction of the far end is adjusted, the bile duct and pancreatic duct in different directions are convenient to advance, and when the knife wire is pulled straight, the part, the electrode connecting point 5 is communicated with the knife wire, and the papillary incision knife can be electrified through the electrode connecting point to realize the duodenal papillary incision function of the incision knife;
The cutting knife inserting part is made of soft insulating materials and can be coiled to be convenient to store and operate.
The size of a guide wire channel is matched with that of a common guide wire and the visual guide wire provided by the application, and the traditional ERCP standard guide wire has 2 specifications: 0.035 inches and 0.025 inches, most commonly at 0.035 inches, about 0.89mm, the visualization guidewire has different diameters depending on its structural composition: for the guide wire with a pure optical structure, the diameter can be consistent with that of the traditional guide wire with 0.035 inch, and even can be slightly thinner; the guide wire with the photoelectric mixed structure is limited by a photoelectric sensor (a CMOS chip), is slightly thicker and should be about 1mm to 1.3mm, so that the diameter of the visual guide wire is different from that of a standard guide wire, and the incision knife is different from other incision knives in the prior art.
As shown in fig. 6-8, the cross-sectional shape of the guide wire channel is circular or C-shaped with an opening on one side, the C-shaped opening can ensure that the diameter of the incision knife is thinner while the guidance performance is ensured, the guide wire can be taken out from the side surface, the cross-section of the visual guide wire is circular, or one side of the visual guide wire is in an asymmetric shape with a circular arc-shaped side matched with the C-shaped opening, and the visual guide wire structure in the asymmetric shape is used for limiting the insertion angle of the visual guide wire, so that the target angle observed by the visual guide wire is ensured to be consistent with the design intention all the time.
As shown in fig. 9-13, the visualization guide wire B has an imaging end on one side and a connector end on the other side, the imaging end uses an optical lens to acquire images and provide illumination, the visualization guide wire is wrapped with a protective layer on the outside, and the connector end is used for connecting with an imaging controller host.
Embodiment 4, as shown in fig. 12, the visual guide wire is a photoelectric hybrid structure, an image is transmitted by using a cable 25, illumination is realized by using an illumination fiber 23, a protective layer 20 is arranged outside the visual guide wire to protect internal components, the illumination fiber 23 and the cable 25 are arranged in the protective layer, an optical lens 22 is arranged at the distal end of the guide wire, and an image sensor 15 is arranged between the optical lens 22 and the cable 25; the visual guide wire is respectively connected with the imaging controller host through two independent optical connectors 19 and an electric connector 26, wherein a cable is connected with the imaging controller host through the electric connector 26, the illuminating optical fiber is connected with the imaging controller host through the optical connector 19, an illuminating light source 18 is arranged in the imaging controller host, the illuminating light source 18 irradiates light onto the illuminating optical fiber 23, the light reaches the far end of the guide wire through the illuminating optical fiber 23 to illuminate a target, a target image is imaged on an image sensor 15 positioned behind the optical lens 22 through the optical lens 22, and the image is converted into an electric signal and then transmitted to the imaging controller host through the cable 25.
As shown in fig. 14, when the visualization guide wire is used, the visualization guide wire advances along the guide wire channel 12 of the incision knife and reaches the distal end of the incision knife insertion portion of the guide wire channel 12, and the best state when the visualization guide wire and the incision knife are cooperated is that the visualization guide wire reaches the distal end of the incision knife but does not extend out, but is observed by a gap in front of an optical lens of the guide wire, so that the situation that imaging is unclear due to too close distance between the lens and an observed target is avoided, in the currently common imaging lens, the angle of view is 90 ° and 120 °, the diameter of the guide wire channel is represented by D, if the angle of view is 90 ° lens, the best distance is 0 to D/2, and if the angle of view is 120 ° lens, the best distance is 0 to D/3.46; in the observation process, water can be injected through the contrast agent channel, the visual guide wire lens is cleaned, and the pancreaticobiliary passage in front of the lens is expanded, so that the visual guide wire can observe the target at the front end more clearly.
A method of using a visualization intubation device, comprising the steps of:
and 5, finishing the intubation work, and carrying out subsequent operation by the doctor with the assistance of the guide wire and the incision knife.
A special fluorescent indicator called indocyanine green is used during surgery. The fluorescent agent absorbs near infrared light around 780nm and emits fluorescence. After being injected into a human body, indocyanine green is highly enriched in bile and is not enriched in pancreatic secretions, so that the indocyanine green can be used as an indicator for distinguishing bile ducts from pancreatic ducts.
The protective scope of the present invention is not limited to the above-described embodiments, and it is apparent that various modifications and variations can be made to the present invention by those skilled in the art without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (8)
1. The utility model provides a visual intubation device, includes incision sword and visual seal wire, its characterized in that: the incision knife comprises an incision knife operation part and an incision knife insertion part, wherein the incision knife operation part comprises an operation part main body, an operation handle connected with one side end part of the operation part main body, a knife wire channel, a guide wire channel and a contrast medium channel which are positioned in the operation part main body, one end of the operation handle is inserted into the knife wire channel and is communicated with the knife wire positioned in the knife wire channel, the operation part main body is provided with a guide wire channel opening communicated with the guide wire channel and a contrast medium channel opening communicated with the contrast medium channel, an electrode connection point is arranged on the operation part main body close to the end part of the operation handle, one end of the electrode connection point is inserted into the knife wire channel, and the other end of the electrode connection point is positioned outside the operation part main body;
the incision knife inserting part comprises a guide wire channel, a knife wire channel and a contrast agent channel, the guide wire channel is communicated with a guide wire channel opening of the incision knife operating part and used for conveying a guide wire, and the guide wire is inserted from the guide wire channel opening and advances along the guide wire channel until reaching a far-end outlet;
the cross section of the guide wire channel is in a C shape with an opening at one side, the cross section of the visual guide wire is in an asymmetric shape with one arc-shaped side and a bulge matched with the C-shaped opening at the other side, and the visual guide wire structure in the asymmetric shape limits the insertion angle of the visual guide wire, so that the target angle observed by the visual guide wire is always consistent with the design intention;
the contrast agent channel is communicated with a contrast agent channel opening positioned in the incision knife operation part and used for conveying contrast agents, a knife wire of the incision knife is arranged in the knife wire channel, the knife wire is exposed out of the incision knife at the far end of the incision knife insertion part and fixedly connected with the far end of the incision knife, the other end of the knife wire reaches the incision knife operation part along the knife wire channel and is connected with an operation handle, wherein the far end is one end far away from the incision knife operation part, the part of the knife wire of the incision knife, which is exposed out of the incision knife at the far end, is arc-shaped in a loose state, when the operation handle of the incision knife is pulled out, the knife wire of the arc-shaped part is straightened to drive the far end of the incision knife to bend, and when the knife wire is straightened, the part of the electrode connection point, which is inserted into the knife wire channel, is communicated with the knife wire;
one side of the visual guide wire is an imaging end, the other side of the visual guide wire is a connector end, the imaging end obtains images through an optical lens and provides illumination, a protective layer wraps the visual guide wire, and the connector end is used for being connected with an imaging controller host.
2. The visualization intubation device of claim 1, wherein: one end of the electrode connecting point is an electrode vertically inserted into the cutter wire channel, the other end of the electrode connecting point is a spherical connecting point positioned outside the operation part main body, when the incision knife needs to be electrified, a cable of the main machine of the electric knife is connected to the electrode connecting point, then the electric knife is excited, so that the metal cutter wire is electrified, and the duodenal papilla is incised after the electrification; the incision knife insertion part is made of soft insulating materials.
3. The visualization intubation device of claim 1, wherein: the size of the guide wire channel is matched with that of the visual guide wire, the visual guide wire is a pure optical structure guide wire, and the diameter of the visual guide wire is consistent with that of the traditional guide wire of 0.035 inch; or the visual guide wire is a photoelectric mixed structure guide wire with the diameter of 1 mm-1.3 mm.
4. The visualization intubation device of claim 1, wherein: the visual guide wire is of a pure optical structure, the illumination and the image transmission are simultaneously realized by using an optical fiber image transmission bundle, and a protective layer is arranged outside the guide wire and used for protecting internal components; the far end of the visual guide wire is provided with an optical lens, the optical lens is connected with the optical fiber image transmission beam, the visual guide wire is connected with the imaging controller host through an optical connector, an illumination light source, a light splitting device and a focusing device are arranged in the imaging controller host, light emitted by the illumination light source enters the optical fiber image transmission beam through the focusing device after being reflected by the light splitting device and is emitted from the optical lens to irradiate an observation target to realize illumination, a target image is imaged on the optical fiber image transmission beam through the optical lens, then the image is transmitted to the inside of the imaging controller host through the optical fiber image transmission beam and reaches the image sensor after passing through the light splitting device through the plurality of focusing devices to realize imaging.
5. The visualization intubation device of claim 1, wherein: the visual guide wire is of a pure optical structure, the image is transmitted by using an optical fiber image transmission bundle and illumination is realized by using an independent illumination optical fiber, a protective layer is arranged outside the guide wire and used for protecting internal components, and the optical lens is arranged at the far end of the guide wire and connected with the optical fiber image transmission bundle; the visual guide wire is connected to the imaging controller host through the optical connector, the imaging controller host is internally provided with the illumination light source and the image sensor, the illumination optical fiber is arranged outside the optical fiber image transmission bundle, the illumination light source irradiates light onto the illumination optical fiber, the illumination optical fiber reaches the far end of the guide wire to illuminate a target, a target image is imaged onto the optical fiber image transmission bundle through the optical lens, and the optical fiber image transmission bundle transmits the image to the inside of the imaging controller to reach the image sensor to realize imaging.
6. The visualization intubation device of claim 1, wherein: the visual guide wire is of a photoelectric mixed structure, a cable is used for transmitting images, illumination is realized by using an illumination optical fiber, a protective layer is arranged outside the guide wire and used for protecting internal components, the illumination optical fiber and the cable are arranged in the protective layer, the far end of the guide wire is an optical lens, and an image sensor is arranged between the optical lens and the cable; the visual guide wire is connected with the imaging controller host through the photoelectric hybrid connector, a lighting source is arranged in the imaging controller host, the lighting source irradiates light onto the lighting optical fiber, the light reaches the far end of the guide wire through the lighting optical fiber, a target is illuminated, a target image is imaged onto an image sensor located behind the optical lens through the optical lens, and the image is converted into an electric signal and then transmitted to the imaging controller host through a cable.
7. The visualization intubation device of claim 1, wherein: the visual guide wire is of a photoelectric mixed structure, a cable is used for transmitting images, illumination is realized by using an illumination optical fiber, a protective layer is arranged outside the visual guide wire and used for protecting internal components, the illumination optical fiber and the cable are arranged in the protective layer, the far end of the guide wire is an optical lens, and an image sensor is arranged between the optical lens and the cable; the visual guide wire is connected with the imaging controller host through two independent optical connectors and an electric connector respectively, wherein a cable is connected with the imaging controller host through the electric connector, the illuminating optical fiber is connected with the imaging controller host through the optical connector, an illuminating light source is arranged in the imaging controller host, the illuminating light source irradiates the illuminating optical fiber, the illuminating optical fiber reaches the far end of the guide wire, a target is illuminated, a target image is imaged on an image sensor behind the optical lens through the optical lens, and the image is transmitted to the imaging controller host through the cable after being converted into an electric signal.
8. The visualization intubation device of claim 1, wherein: the visual guide wire is of a photoelectric mixed structure, an image is transmitted by using a cable, illumination is realized by using an illumination optical fiber, a protective layer is arranged outside the visual guide wire and used for protecting internal components, an illumination light source, a focusing device, the illumination optical fiber and the cable are arranged in the protective layer, the far end of the visual guide wire is an optical lens, and an image sensor is arranged between the optical lens and the cable; the visual guide wire is connected with the imaging controller host through the electrical connector, the lighting source and the focusing device are arranged in the visual guide wire, the lighting source is connected with the imaging controller host through a cable, the lighting source is controlled to emit light by utilizing an electrical signal of the imaging controller host, so that illumination is realized, a target image is imaged onto an image sensor positioned behind an optical lens through the optical lens, and the image is transmitted to the imaging controller host through the cable after being converted into the electrical signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210496452.8A CN114849021B (en) | 2022-05-09 | 2022-05-09 | Visual intubation device and using method thereof |
| PCT/CN2023/090936 WO2023216887A1 (en) | 2022-05-09 | 2023-04-26 | Cannulation device for visualization and method for using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210496452.8A CN114849021B (en) | 2022-05-09 | 2022-05-09 | Visual intubation device and using method thereof |
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| CN114849021A CN114849021A (en) | 2022-08-05 |
| CN114849021B true CN114849021B (en) | 2023-03-24 |
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| CN202210496452.8A Active CN114849021B (en) | 2022-05-09 | 2022-05-09 | Visual intubation device and using method thereof |
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| CN (1) | CN114849021B (en) |
| WO (1) | WO2023216887A1 (en) |
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| CN114849021B (en) * | 2022-05-09 | 2023-03-24 | 精微致远医疗科技(武汉)有限公司 | Visual intubation device and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105194789A (en) * | 2015-08-18 | 2015-12-30 | 王秀珉 | Catheter fixing adhesive capable of fixing and highly assembling catheter body and using method thereof |
| JP2016086998A (en) * | 2014-10-31 | 2016-05-23 | テルモ株式会社 | Ablation catheter |
| CN206120437U (en) * | 2016-07-04 | 2017-04-26 | 南京微创医学科技股份有限公司 | Bipolar high frequency electric sword |
| CN111450388A (en) * | 2020-04-02 | 2020-07-28 | 刘强 | Automatic catheter guide wire butt joint device, method and system for cardiac intervention operation |
| CN212015718U (en) * | 2020-02-28 | 2020-11-27 | 杭州市第一人民医院 | Combined incision knife |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001089624A1 (en) * | 2000-05-19 | 2001-11-29 | C.R. Bard, Inc. | Steerable biliary catheter |
| ES2409160T3 (en) * | 2004-03-23 | 2013-06-25 | Boston Scientific Limited | Live View System |
| CN101919725A (en) * | 2010-08-03 | 2010-12-22 | 安瑞医疗器械(杭州)有限公司 | Medical equipment of micro-invasive interventional therapy for pancreaticobiliary duct |
| CN202699275U (en) * | 2012-05-17 | 2013-01-30 | 杭州安杰思医学科技有限公司 | High frequency cutting knife |
| CN104434269A (en) * | 2014-11-28 | 2015-03-25 | 姚俊 | Two-guide-wire papillotome |
| CN105455767A (en) * | 2015-12-22 | 2016-04-06 | 佛山市南海区欧谱曼迪科技有限责任公司 | Microscopic endoscope system |
| KR20180076204A (en) * | 2016-12-27 | 2018-07-05 | (주)비엠에이 | Papillotome for endoscope |
| CN109481008A (en) * | 2018-12-17 | 2019-03-19 | 锐志微创医疗科技（常州）有限公司 | A kind of detachable structure tissue closure cutting electrode routing device |
| CN111419158B (en) * | 2020-04-07 | 2023-03-21 | 中国人民解放军总医院第四医学中心 | Stereoscopic endoscope assembly and stereoscopic nerve endoscope |
| CN112806949A (en) * | 2021-02-01 | 2021-05-18 | 邢媛媛 | Visual multifunctional ERCP (endoscopic retrograde cholangiopancreatography) intubation catheter and intubation method thereof |
| CN214912456U (en) * | 2021-02-22 | 2021-11-30 | 石益海 | Visual catheter and have incision sword of this visual catheter |
| CN114569874A (en) * | 2022-05-09 | 2022-06-03 | 精微致远医疗科技(武汉)有限公司 | Imaging controller host applied to visual guide wire and image processing method |
| CN114849021B (en) * | 2022-05-09 | 2023-03-24 | 精微致远医疗科技(武汉)有限公司 | Visual intubation device and using method thereof |
-
2022
- 2022-05-09 CN CN202210496452.8A patent/CN114849021B/en active Active
-
2023
- 2023-04-26 WO PCT/CN2023/090936 patent/WO2023216887A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016086998A (en) * | 2014-10-31 | 2016-05-23 | テルモ株式会社 | Ablation catheter |
| CN105194789A (en) * | 2015-08-18 | 2015-12-30 | 王秀珉 | Catheter fixing adhesive capable of fixing and highly assembling catheter body and using method thereof |
| CN206120437U (en) * | 2016-07-04 | 2017-04-26 | 南京微创医学科技股份有限公司 | Bipolar high frequency electric sword |
| CN212015718U (en) * | 2020-02-28 | 2020-11-27 | 杭州市第一人民医院 | Combined incision knife |
| CN111450388A (en) * | 2020-04-02 | 2020-07-28 | 刘强 | Automatic catheter guide wire butt joint device, method and system for cardiac intervention operation |
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|---|---|
| WO2023216887A1 (en) | 2023-11-16 |
| CN114849021A (en) | 2022-08-05 |
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