CN110339462B - Balloon catheter capable of injecting liquid under guidance of endoscope - Google Patents
Balloon catheter capable of injecting liquid under guidance of endoscope Download PDFInfo
- Publication number
- CN110339462B CN110339462B CN201910635051.4A CN201910635051A CN110339462B CN 110339462 B CN110339462 B CN 110339462B CN 201910635051 A CN201910635051 A CN 201910635051A CN 110339462 B CN110339462 B CN 110339462B
- Authority
- CN
- China
- Prior art keywords
- catheter
- main body
- balloon
- channel
- sealing
- 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 34
- 238000007789 sealing Methods 0.000 claims abstract description 84
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 2
- 208000032843 Hemorrhage Diseases 0.000 abstract description 13
- 230000023597 hemostasis Effects 0.000 abstract description 8
- 238000013276 bronchoscopy Methods 0.000 abstract description 2
- 229920002614 Polyether block amide Polymers 0.000 description 10
- 230000000740 bleeding effect Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002627 tracheal intubation Methods 0.000 description 4
- 238000001574 biopsy Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 210000000621 bronchi Anatomy 0.000 description 2
- 230000002439 hemostatic effect Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 108090000190 Thrombin Proteins 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229960004072 thrombin Drugs 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M25/09041—Mechanisms for insertion of guide wires
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Child & Adolescent Psychology (AREA)
- Reproductive Health (AREA)
- Vascular Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention relates to a balloon catheter capable of injecting liquid under the guidance of an endoscope, which comprises a catheter main body and a connector, wherein a balloon is arranged at a position, close to a distal end, on the catheter main body, an inflation channel and a liquid injection channel are axially arranged in the catheter main body, and a sealing valve is arranged in the inflation channel between the proximal end of the catheter main body and the balloon; the catheter main body and two ends of the catheter pipeline of the connector form detachable and sealing connection, and an inlet of the liquid injection channel is positioned in the catheter pipeline. The detachable balloon catheter can meet the requirement that the balloon can be blocked without exiting the airway in bronchoscopy operation during massive hemorrhage, and in addition, if necessary, the complex operation of repeatedly exchanging and introducing the balloon catheter in the past can be avoided by performing liquid injection operation through the liquid injection pipe joint and the liquid injection channel, so that the original two steps of inserting the guide wire and the balloon catheter are combined into one, and the aim of higher efficiency and more precision hemostasis is achieved.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a balloon catheter capable of injecting liquid under the guidance of an endoscope.
Background
The existing operation of hemostasis of a three-cavity balloon catheter under the guidance of a bronchoscope: the method comprises the steps of placing a bronchoscope through a nasal/oral/tracheal intubation channel, determining an active bleeding part, placing a guide wire through a bronchoscope biopsy channel to an active bleeding section/leaf broncholumen, slowly withdrawing the bronchoscope, placing a balloon catheter along the guide wire, placing the bronchoscope again through the nasal/oral/tracheal intubation channel, observing the process of placing the balloon catheter into the bleeding section/leaf broncholumen under direct vision, inflating and fixing the filling balloon to stop bleeding through a proximal luer connector after confirming the balloon position, avoiding blood from rushing from a patient side to other normal healthy side section bronchotubes, injecting thrombin into the bleeding lumen through a proximal drug injection port of the balloon catheter, and withdrawing the bronchoscope again after confirming no bleeding. From the above description of the procedure, the current three-lumen balloon catheter has a complicated hemostatic operation, and requires repeated exchange of bronchoscopy, and there is an urgent need for a balloon catheter that can simplify the above operation.
Disclosure of Invention
The invention aims to overcome the defect that the existing three-cavity balloon catheter is complex in hemostasis operation and needs to repeatedly exchange the placement of a bronchoscope, and provides the balloon catheter capable of injecting liquid under the guidance of an endoscope.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a but sacculus pipe of injecting liquid under endoscope guide, includes the pipe main part and sets up the sacculus on being close to the pipe main part distal end, its characterized in that: the balloon catheter is also provided with a connector, an inflation channel and a liquid injection channel are axially arranged in the catheter main body, an inlet of the inflation channel is arranged at the proximal end of the catheter main body, and the distal end of the inflation channel is communicated with the balloon; the outlet of the liquid injection channel is arranged at the far end of the catheter main body, the inlet of the liquid injection channel is arranged on the side wall of the catheter main body close to the near end, a sealing valve for preventing the air leakage of the air injection channel is arranged in the air injection channel between the near end of the catheter main body and the balloon, and the far end part of the catheter main body relative to the balloon forms a guide head; the connector is a tee joint tubular member, a conduit pipe penetrating through two ends is arranged in the connector, a liquid injection pipe joint with one end communicated with the conduit pipe is arranged on the side face of the connector, the proximal end of the conduit main body penetrates through the conduit pipe, sealing clamping mechanisms are arranged at two ends of the conduit pipe to enable the conduit main body and two ends of the conduit pipe of the connector to form detachable and sealing connection, and an inlet of the liquid injection passage is arranged in the conduit pipe.
The connecting head comprises a T-shaped or 'Bu' -shaped tee pipe fitting and two end caps, wherein a straight-through hole in the tee pipe fitting forms a conduit pipe, the diameter of the middle section of the conduit pipe is smaller than that of two ends, the two ends and the middle section of the conduit pipe are in conical connection, an elastic annular sealing ring is arranged at the conical connection position, an axial tubular ejector rod with a through hole is arranged at the center of the end cap, the diameter of the through hole is in clearance fit with the diameter of the conduit main body, the two end caps are respectively in threaded connection with the two ends of the straight-through hole in the tee pipe fitting, the proximal end of the conduit main body penetrates through the conduit pipe and the end cap through holes and the annular sealing rings at the two ends, and the end parts of the axial tubular ejector rod at the center of the end caps are propped against the elastic annular sealing rings to form the sealing and clamping mechanism.
As a further arrangement of the invention, a single channel structure is arranged between the proximal end of the catheter body and the inlet of the liquid injection channel, the front end of the single channel is communicated with the air inflation channel, and the sealing valve is arranged in the single channel structure.
As a further arrangement of the invention, the sealing valve is arranged at the proximal end of the inflation channel, and a retainer ring is fixedly arranged in the proximal end port of the inflation channel to prevent the sealing valve from falling off.
As a further arrangement of the invention, the proximal end of the catheter body is also provided with a sealing cap, and the sealing cap is detachably connected with the proximal end of the catheter body in a sealing way.
As a further arrangement of the invention, the sealing cap comprises a tubular main body with an opening at the front end, a front end cap and an elastic sealing ring, wherein the end face of the front end cap is provided with a catheter perforation which is in clearance fit with the proximal end of the catheter main body, the elastic sealing ring is arranged at the bottom of the inner cavity of the front end cap, the central hole of the elastic sealing ring is in clearance fit with the proximal end of the catheter main body, the proximal end of the catheter main body passes through the catheter perforation and the catheter perforation to the inner cavity of the front end cap, the opening end of the sealing cap is inserted into the front end cap and forms threaded connection, and the end part of the sealing cap is propped against the elastic sealing ring to form detachable sealing connection with the proximal end of the catheter main body.
As a further arrangement of the invention, the sealing valve comprises a valve body which is integrally cylindrical, the diameter of the valve body is in interference fit with the aperture of the inflation channel, the valve body is made of elastic material, and the valve body is provided with a channel penetrating to the other end.
As a further arrangement of the invention, the air inlet end face of the valve body is provided with a guide groove.
As a further arrangement of the invention, the channel is provided with a slot penetrating to the other end, and the inlet end of the slot is provided with a triangular groove to form the guide groove.
As a further arrangement of the invention, the front section of the guide head is softer, the rear section is slightly harder, and a soft and hard combined structure with front soft and rear hard is formed.
Compared with the prior art, when the balloon catheter which can be injected under the guidance of the endoscope is used for hemostasis operation, a bronchoscope is placed through a nasal/oral/tracheal intubation channel, the bronchoscope is placed through a bronchoscope biopsy channel, after the balloon catheter is guided to reach a bleeding position under the observation of the bronchoscope, at the moment, the balloon is inflated through an inflation channel of an inflation device such as an injector without a needle (or with a needle) on the inlet of the inflation channel, so that the balloon is inflated to cling to the airway, anchored in a section of bronchus, and then the inflation device is removed, and the balloon is not deflated due to the fact that a sealing valve is arranged at the proximal end of the inflation channel; when the bronchoscope is required to be withdrawn, the bronchoscope can be withdrawn smoothly only by removing the connector. Therefore, the balloon occlusion can be carried out without exiting the airway in the bronchoscope operation during massive hemorrhage, the complex operation that the balloon catheter is introduced by repeated exchange in the past is avoided, the operation is simple, convenient and quick, the bleeding part is reached, the two steps of the original inserted guide wire and the balloon catheter are combined into one, and the purposes of higher efficiency and higher accuracy are achieved.
The invention will be further described with reference to the accompanying drawings and specific examples.
Drawings
FIG. 1 is a schematic view showing the outline of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the structure of FIG. 1 A-A;
FIG. 3 is an enlarged partial view of the portion I of FIG. 2;
FIG. 4 is a front view of an embodiment of the sealing cap of the present invention;
FIG. 5 is a cross-sectional view of the structure of FIG. 4B-B;
FIG. 6 is an exploded view of an embodiment of the sealing cap of the present invention;
FIG. 7 is a schematic view showing the appearance of an embodiment (inflated state) equipped with a sealing cap according to the present invention;
FIG. 8 is a front view of an embodiment of the present invention provided with a sealing cap;
FIG. 9 is a cross-sectional view of the structure of FIG. 8C-C;
FIG. 10 is an enlarged partial view of the portion II of FIG. 9;
FIG. 11 is a schematic view showing the exterior of an embodiment of the sealing cap of the present invention;
FIG. 12 is a front view of an embodiment of the sealing cap of the present invention;
FIG. 13 is a cross-sectional view of the structure of FIG. 12D-D;
FIG. 14 is a schematic view showing the exterior of an embodiment of the sealing valve of the present invention;
FIG. 15 is a front view of an embodiment of a sealing valve of the present invention;
fig. 16 is a cross-sectional view of the structure of fig. 15E-E.
Detailed Description
As shown in fig. 1 to 3, the endoscope-guided, fluid-injectable balloon catheter of the present invention comprises a catheter body 1, a balloon 2 disposed near the distal end of the catheter body 1, and a connector. The catheter body 1 tubular member is axially provided with an inflation channel 5 and a liquid injection channel 8, the inlet of the inflation channel 5 is arranged on the proximal end of the catheter body 1, the distal end of the inflation channel 5 is communicated with the balloon 2, the outlet of the liquid injection channel 8 is arranged on the distal end of the catheter body 1, the inlet of the liquid injection channel 8 is arranged on the side wall of the proximal end or the side wall close to the proximal end, a sealing valve 4 for preventing the inflation channel 5 from leaking gas is arranged in the inflation channel 5 between the proximal end of the catheter body 1 and the balloon 2, and the distal end part of the catheter body 1 relative to the balloon 2 forms a guide head 3. The connector is a three-way tubular member, a conduit pipe penetrating through two ends is arranged in the connector, a liquid injection pipe joint with one end communicated with the conduit pipe is arranged on the side face of the connector, the proximal end of the conduit main body 1 penetrates through the conduit pipe, sealing and clamping mechanisms are arranged at two ends of the conduit pipe to enable the conduit main body 1 to be in detachable and sealing connection with two ends of the conduit pipe of the connector, and an inlet of the liquid injection channel 8 is arranged in the conduit pipe. The catheter main body 1 is made of materials and has the same diameter as the existing catheter, the diameters of the materials and the diameters can be different specifications, the diameters are preferably 1.5-3.0mm, the length of the distal guide head 3 of the catheter main body 1 is preferably 5-20cm, the catheter main body is made of slightly elastic and flexible materials, such as silica gel, TPU polyurethane, PEBAX block polyether amide resin and the like, and the hardness is approximately between 50A-50D of Shore hardness so as to prevent the puncture of the trachea.
The balloon 2 can be the same as the existing balloon 2 on the catheter, the balloon 2 is preferably cylindrical after being inflated, the pressure on the wall of the balloon can be reduced and evenly reduced, the plugging effect is improved, the axial length of the balloon 2 is preferably 8-15mm, the diameter of the balloon 2 after inflation is preferably 10-30mm, and the diameter is preferably 15-25mm.
In this embodiment, as shown in fig. 14-16, the sealing valve 4 includes a valve body 401 that is integrally cylindrical, the diameter of the valve body 401 is in interference fit with the aperture of the inflation channel 5, and is made of an elastic material, the air inlet end surface of the valve body 401 is provided with a groove 402, the bottom of the groove 402 is provided with a slot 403 penetrating to the other end (i.e. the air outlet end), and the groove 402 is preferably a triangular groove. The grooves 402 are provided to converge the air flow at the inlet of the slot 403 to expand the slot 403 when the balloon 2 is inflated, so that the air flow can pass through the slot 403, and the needle can be inserted through the slot 403 to inflate the balloon 2.
The sealing valve 4 is preferably arranged at the proximal end of the inflation channel 5, and an annular retainer ring 6 is fixedly arranged in the proximal end opening of the inflation channel 5 to prevent the sealing valve 4 from falling out. Specifically, a section of cavity with diameter and length matched with the valve body 401 of the sealing valve 4 and the annular retainer ring 6 is arranged at the proximal end of the inflation channel 5, the diameter of the cavity is slightly larger than the diameters of the rest parts of the inflation channel 5, so that a limiting shoulder step is formed at the inner side end, and the valve body 401 and the annular retainer ring 6 are sequentially placed and fixed.
Since the catheter diameter of the balloon 2 cannot be too large, typically below 2.8mm, the space for installing the sealing valve 4 is very limited, and the difficulty is even greater if a dual-chamber arrangement of the inflation channel 5 and the filling channel 8 is used at the location where the sealing valve 4 is installed (i.e. the inlets of the inflation channel 5 and the filling channel 8 are simultaneously arranged). As a preferred embodiment, the inlet of the liquid injection channel 8 is disposed on the side wall near the proximal end of the catheter body 1, a length matched with the sealing valve 4 and the annular retainer ring 6 is remained between the inlet of the liquid injection channel 8 and the proximal end, a single channel structure is formed between the proximal end of the catheter body 1 and the inlet of the liquid injection channel 8, the part below the inlet of the liquid injection channel 8 adopts a double-cavity arrangement of the air inflation channel 5 and the liquid injection channel 8, the front end of the single channel is communicated with the air inflation channel 5, and the sealing valve 4 and the annular retainer ring 6 are disposed in the single channel structure.
In this embodiment, as shown in fig. 4-6, the connector 2 includes a T-shaped or "bo" shaped three-way pipe 203 and two end caps 204, the through hole in the three-way pipe 203 forms the conduit 201, the diameter of the middle section of the conduit 201 is smaller than the diameter of the two ends, the two ends of the conduit 201 are in tapered connection with each other, an elastic annular sealing ring 5 is disposed at the tapered connection, an axial tubular ejector rod 205 with a through hole is disposed at the center of the end cap 204, the diameter of the through hole is in clearance fit with the diameter of the conduit body 1, the two end caps 204 respectively form a threaded connection with the two ends of the through hole in the three-way pipe 203, the proximal end of the conduit body 1 passes through the through hole of the conduit 201 and the end caps 204 and the annular sealing ring 5 at the two ends, the axial tubular ejector rod 205 at the center of the end cap 204 abuts against the elastic annular sealing ring 5, and the two ends of the conduit 201 are sealed by using the pressing of the axial tubular ejector rod 205 at the center of the end cap 204 and the inclined surface effect and the annular sealing ring 5 elasticity at the tapered connection, and the clamping and fixing the conduit body 1 is formed.
As shown in fig. 7-10, in order to further improve the sealing performance and to improve the hemostatic effect, the proximal end of the catheter body 1 is preferably further provided with a sealing cap 7 for sealing the inlet of the inflation channel 5, and the sealing cap 7 is detachably and sealingly connected with the proximal end of the catheter body 1.
As shown in fig. 11-13, the sealing cap 7 comprises a tubular body 701 with an open front end, a front end cap 702 and an elastic sealing ring 703, the end face of the front end cap 702 is provided with a catheter perforation 704 in clearance fit with the proximal end of the catheter body 1, the elastic sealing ring 703 is arranged at the bottom of the inner cavity of the front end cap 702, the central hole of the elastic sealing ring 703 is in clearance fit with the proximal end of the catheter body 1, the proximal end of the catheter body 1 passes through the catheter perforation 704 and the central hole of the elastic sealing ring 703 to the inner cavity of the front end cap 702, the open end of the sealing cap 7 is inserted into the front end cap 702 and forms a threaded connection, and the end of the sealing cap 7 is pressed against the elastic sealing ring 703, so that the elastic sealing ring 703 is elastically deformed to pinch the catheter body 1, thereby forming the detachable sealing connection with the proximal end of the catheter body 1.
As a preferred scheme, the front section 301 of the guiding head is made of softer materials, the rear section 302 (the length is about 10cm to 15 cm) close to the balloon 2 is made of materials with a certain rigidity, so that the structure of the guiding head 3 of the front section (the far section) of the balloon 2 is combined with the soft and hard materials, the guiding effect is achieved, the insertion performance is good, and meanwhile, the guiding by a guide wire can be omitted during placement. Specifically, the softer anterior segment portion may be formed from, for example, silicone, TPU polyurethane, PEBAX block polyether amide resin, or the like, having a hardness between about 50A-50D Shore; the hard part can be made of TPU (polyurethane), PEBAX (block polyether amide resin), PE, PA and the like with higher hardness, and the hardness is about between 50D and 90D of Shore hardness. In order to prevent the distal guide head 3 from accidentally withdrawing from the predetermined position, the soft-hard junction of the guide head 3 (distal section) before the balloon 2 is not easily too short, and the length should be generally 10cm or more.
Preferably, the catheter main body 1 at the rear section of the balloon 2 is formed by connecting a section of slightly rigid catheter and a section of flexible catheter in sequence, and the length of the flexible catheter is about twice the length of the forceps channel of the bronchoscope, so that not only a slightly rigid insertion effect is ensured, but also nasal foreign body sensation caused to a patient is reduced. The slightly rigid portion of the catheter body 1 may also be made of TPU (polyurethane), PEBAX (block polyether amide resin), PE, PA, etc. with a higher hardness of about 50D-90D, while the soft portion of the catheter is made of silicone, TPU polyurethane, PEBAX block polyether amide resin, etc. with a hardness of about 50A-50D.
The application method of the anti-displacement detachable balloon 2 catheter guided by the bronchoscope comprises the following steps: taking the operation of hemostasis as an example, when the detachable balloon 2 catheter is used for hemostasis operation, a bronchoscope is placed through a nasal/oral/tracheal intubation channel, the detachable balloon 2 catheter with a guide wire is placed through a bronchoscope biopsy channel, after the balloon 2 catheter is guided to reach a bleeding position under the observation of the bronchoscope, at the moment, the balloon 2 is inflated through an inflation channel 5 through which an inflation device such as a syringe without a needle (or with a needle) passes on the inlet of the inflation channel 5, so that the balloon 2 is fully clung to the airway and anchored on a segment of bronchus for hemostasis; if necessary, the inflatable device can be removed, and the balloon 2 can not be deflated because the sealing valve 4 is arranged at the proximal end of the inflation channel 5, and then the connector is removed and the bronchoscope is withdrawn. Therefore, the operation of the bronchoscope can be carried out without exiting the airway when the bronchoscope is used for large hemorrhage, the complex operation that the guide tube of the guide balloon 2 needs to be repeatedly exchanged in the past is avoided, the operation is simple, convenient and quick, the bleeding part is reached, the two steps of the original insertion guide wire and the guide tube of the guide balloon 2 are combined into one, and the aim of higher efficiency and higher accuracy of hemostasis is achieved.
The present invention is not limited to the above-described embodiments, and those skilled in the art can implement the present invention in various other embodiments according to the present invention, or simply change or modify the design structure and thought of the present invention, which fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a but sacculus pipe of injecting liquid under endoscope guide, includes the pipe main part and sets up the sacculus on being close to the pipe main part distal end, its characterized in that: the balloon catheter is also provided with a connector, an inflation channel and a liquid injection channel are axially arranged in the catheter main body, an inlet of the inflation channel is arranged at the proximal end of the catheter main body, and the distal end of the inflation channel is communicated with the balloon; the outlet of the liquid injection channel is arranged at the far end of the catheter main body, the inlet of the liquid injection channel is arranged on the side wall of the catheter main body close to the near end, a sealing valve for preventing the air leakage of the air injection channel is arranged in the air injection channel between the near end of the catheter main body and the balloon, and the far end part of the catheter main body relative to the balloon forms a guide head; the connector is a three-way tubular member, a conduit pipe penetrating through two ends is arranged in the connector, a liquid injection pipe joint with one end communicated with the conduit pipe is arranged on the side face of the connector, the proximal end of the conduit main body penetrates through the conduit pipe, sealing and clamping mechanisms are arranged at two ends of the conduit pipe to enable the conduit main body to be detachably and hermetically connected with two ends of the conduit pipe of the connector, and an inlet of the liquid injection passage is positioned in the conduit pipe;
The connector comprises a T-shaped or 'Bu' -shaped tee pipe fitting and two end caps, a straight-through pore canal in the tee pipe fitting forms a conduit pipe, the diameter of the middle section of the conduit pipe is smaller than that of two ends, the two ends and the middle section of the conduit pipe are in conical connection, an elastic annular sealing ring is arranged at the conical connection, an axial tubular ejector rod with a through hole is arranged at the center of the end cap, the diameter of the through hole is in clearance fit with the diameter of a conduit main body, the two end caps are respectively in threaded connection with the two ends of the straight-through pore canal in the tee pipe fitting, the proximal end of the conduit main body penetrates through the conduit pipe and the end cap through holes and the annular sealing rings at the two ends, and the end part of the axial tubular ejector rod at the center of the end cap is propped against the elastic annular sealing ring to form the sealing and clamping mechanism;
A single-channel structure is arranged between the proximal end of the catheter main body and the inlet of the liquid injection channel, the front end of the single channel is communicated with the air inflation channel, and the sealing valve is arranged in the single-channel structure.
2. The endoscopically-guided, fluid-infused balloon catheter of claim 1, wherein: the sealing valve is arranged at the proximal end of the inflation channel, and a retainer ring is fixedly arranged in the proximal end opening of the inflation channel to prevent the sealing valve from falling off.
3. The endoscopically-guided, fluid-infused balloon catheter of claim 1, wherein: the proximal end of the catheter main body is also provided with a sealing cap, and the sealing cap is detachably connected with the proximal end of the catheter main body in a sealing manner.
4. An endoscopically-guided, fluid-infused balloon catheter according to claim 3 and wherein: the sealing cap comprises a tubular main body with an open front end, a front end cap and an elastic sealing ring, wherein the end face of the front end cap is provided with a catheter perforation which is in clearance fit with the proximal end of the catheter main body, the elastic sealing ring is arranged at the bottom of an inner cavity of the front end cap, a central hole of the elastic sealing ring is in clearance fit with the proximal end of the catheter main body, the proximal end of the catheter main body penetrates through the catheter perforation and the catheter perforation to the inner cavity of the front end cap, the open end of the sealing cap is inserted into the front end cap and is in threaded connection, and the end part of the sealing cap is propped against the elastic sealing ring to form detachable sealing connection with the proximal end of the catheter main body.
5. An endoscopically injectable balloon catheter according to any of claims 1-4 and wherein: the sealing valve comprises a valve body which is integrally cylindrical, the diameter of the valve body is in interference fit with the aperture of the inflation channel, the valve body is made of elastic materials, and the valve body is provided with a channel which penetrates through the other end of the valve body.
6. The endoscopically-guided, fluid-infused balloon catheter of claim 5, wherein: the end face of the valve body for air inlet is provided with a guide groove.
7. The endoscopically-guided, fluid-infused balloon catheter of claim 6, wherein: the channel is provided with a slot which penetrates through the other end, and the inlet end of the slot is provided with a triangular groove to form the guide groove.
8. The endoscopically-guided, fluid-infused balloon catheter of claim 1, wherein: the front section of the guide head is softer, the rear section is harder, and a soft and hard combination structure with front soft and rear hard is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910635051.4A CN110339462B (en) | 2019-07-15 | 2019-07-15 | Balloon catheter capable of injecting liquid under guidance of endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910635051.4A CN110339462B (en) | 2019-07-15 | 2019-07-15 | Balloon catheter capable of injecting liquid under guidance of endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110339462A CN110339462A (en) | 2019-10-18 |
| CN110339462B true CN110339462B (en) | 2024-05-07 |
Family
ID=68175283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910635051.4A Active CN110339462B (en) | 2019-07-15 | 2019-07-15 | Balloon catheter capable of injecting liquid under guidance of endoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110339462B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112933379A (en) * | 2021-03-31 | 2021-06-11 | 上海微创医疗器械（集团）有限公司 | Medical catheter and medical catheter system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018034630A1 (en) * | 2016-08-16 | 2018-02-22 | Karakoca Yalcin | Balloon catheter that makes optical washing with liquid injection |
| CN108888854A (en) * | 2018-09-03 | 2018-11-27 | 南京微创医学科技股份有限公司 | A kind of double sacculus perfusion conduits of interval adjustable and its application method |
| CN210844889U (en) * | 2019-07-15 | 2020-06-26 | 温州医科大学附属第一医院 | Balloon catheter capable of injecting liquid under guidance of endoscope |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2941617B1 (en) * | 2009-02-04 | 2012-06-29 | Endalis | INTRA-GASTRIC BALLOON. |
-
2019
- 2019-07-15 CN CN201910635051.4A patent/CN110339462B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018034630A1 (en) * | 2016-08-16 | 2018-02-22 | Karakoca Yalcin | Balloon catheter that makes optical washing with liquid injection |
| CN108888854A (en) * | 2018-09-03 | 2018-11-27 | 南京微创医学科技股份有限公司 | A kind of double sacculus perfusion conduits of interval adjustable and its application method |
| CN210844889U (en) * | 2019-07-15 | 2020-06-26 | 温州医科大学附属第一医院 | Balloon catheter capable of injecting liquid under guidance of endoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110339462A (en) | 2019-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2674719B2 (en) | Bronchoalveolar lavage catheter | |
| CN110339461B (en) | Balloon catheter capable of passing guide wire under guidance of endoscope | |
| CN108498928B (en) | Tracheal cannula external member capable of guiding descending bronchus to block under bronchofiberscope | |
| CN211357363U (en) | Self-guiding balloon catheter under endoscope | |
| CN110339462B (en) | Balloon catheter capable of injecting liquid under guidance of endoscope | |
| CN101507853B (en) | Micro-wound tracheal tube | |
| CN212326357U (en) | Air flue plugging balloon | |
| CN110270003B (en) | Balloon catheter under guidance of endoscope | |
| CN210844889U (en) | Balloon catheter capable of injecting liquid under guidance of endoscope | |
| CN211383379U (en) | Endoscope guided lower balloon catheter | |
| CN210844890U (en) | Balloon catheter capable of passing through guide wire under guidance of endoscope | |
| CN207400785U (en) | puncture outfit with fixed function | |
| CN112472164A (en) | Drainage catheter | |
| CN110339463B (en) | Self-guiding saccule catheter under endoscope | |
| CN112717246B (en) | Selective bronchial intubation device | |
| US9010332B2 (en) | Expandable inter vivos tube | |
| JP4920279B2 (en) | Endoscope | |
| CN202005940U (en) | Clamp type tracheal cannula | |
| CN217548126U (en) | Novel visual occluder for blocking and positioning lower trachea and achieving visual observation at any time in operation | |
| CN210020733U (en) | Double-cavity bronchial cannula | |
| CN111759265A (en) | Air flue plugging balloon | |
| JP2002282268A (en) | Insertion sheath | |
| CN209564142U (en) | A kind of sacculus cytobrush | |
| CN219814288U (en) | Endoscope sheath | |
| CN221711930U (en) | Three-cavity double-air-bag esophageal pressure monitoring tube |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211013 Address after: Building 03, accelerator phase II, No. 11, Yaogu Avenue, Jiangbei new district, Nanjing, Jiangsu Province Applicant after: CANYON MEDICAL Inc. Address before: 325000 Wenzhou City National University Science Park incubator, No. 38 Dongfang South Road, Ouhai District, Wenzhou, Zhejiang Applicant before: THE FIRST AFFILIATED HOSPITAL OF WENZHOU MEDICAL University |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |