CN112472969A - Fistulous tract automatic expansion type puncture drainage tube - Google Patents
Fistulous tract automatic expansion type puncture drainage tube Download PDFInfo
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- CN112472969A CN112472969A CN202011484858.1A CN202011484858A CN112472969A CN 112472969 A CN112472969 A CN 112472969A CN 202011484858 A CN202011484858 A CN 202011484858A CN 112472969 A CN112472969 A CN 112472969A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 206010016717 Fistula Diseases 0.000 claims abstract description 24
- 230000003890 fistula Effects 0.000 claims abstract description 24
- 239000004698 Polyethylene Substances 0.000 claims abstract description 18
- -1 polyethylene Polymers 0.000 claims abstract description 18
- 229920000573 polyethylene Polymers 0.000 claims abstract description 18
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 239000011358 absorbing material Substances 0.000 claims abstract description 14
- 210000000941 bile Anatomy 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 230000002745 absorbent Effects 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 210000000232 gallbladder Anatomy 0.000 abstract description 9
- 201000010099 disease Diseases 0.000 abstract description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 7
- 210000000013 bile duct Anatomy 0.000 abstract description 5
- 210000005077 saccule Anatomy 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 6
- 210000003445 biliary tract Anatomy 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 5
- 238000002695 general anesthesia Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000036407 pain Effects 0.000 description 5
- 206010002091 Anaesthesia Diseases 0.000 description 3
- 206010024652 Liver abscess Diseases 0.000 description 3
- 230000037005 anaesthesia Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002192 cholecystectomy Methods 0.000 description 2
- 238000007457 cholecystostomy Methods 0.000 description 2
- 201000001883 cholelithiasis Diseases 0.000 description 2
- 208000001130 gallstones Diseases 0.000 description 2
- 208000015163 Biliary Tract disease Diseases 0.000 description 1
- 206010023129 Jaundice cholestatic Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 201000005267 Obstructive Jaundice Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 208000003167 cholangitis Diseases 0.000 description 1
- 201000001352 cholecystitis Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000002603 extrahepatic bile duct Anatomy 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 210000005161 hepatic lobe Anatomy 0.000 description 1
- 210000003228 intrahepatic bile duct Anatomy 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 238000002350 laparotomy Methods 0.000 description 1
- 238000002504 lithotomy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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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
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- 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
- A61M25/06—Body-piercing guide needles or the like
- A61M25/065—Guide needles
-
- 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
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0662—Guide tubes
-
- 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
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
-
- 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
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0662—Guide tubes
- A61M2025/0681—Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Vascular Medicine (AREA)
- Child & Adolescent Psychology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides an automatic expansion type puncture drainage tube for a fistula tract, which comprises a drainage tube, a supporting tube and a stylet, wherein the drainage tube comprises a tube section I, a tube section II, a tube section III and a connector; the pipe section I is a single-channel loop pipe and is internally provided with a channel I; a side hole is formed in the pipe section I; a channel II is arranged in the pipe section II, and a cylindrical water absorbing material and a polyethylene balloon membrane are wrapped on the pipe wall; a channel III is arranged in the pipe section III; a channel IV is arranged in the connector; the tail end of the supporting tube is connected with the connector; the support tube body is inserted into the channel IV and penetrates through the channel I; the tail end of the stylet is connected with the supporting tube; the needle core body is inserted into and penetrates out of the channel in the supporting tube; the pipe section I is connected with a traction wire, and the traction wire sequentially penetrates through the channel I, the channel II and the channel III and is led out from the connector through the channel IV. The invention can directly carry out percutaneous transhepatic bile duct and gallbladder puncture, and simultaneously gradually dilate the fistula tract by the gradually filled polyethylene saccule, thereby increasing the fistula tract dilatation range, reducing the drainage tube replacement times, shortening the course of disease and having low manufacturing cost.
Description
Technical Field
The invention relates to the technical field of minimally invasive medical technology and surgical instruments, in particular to an automatic fistulous tract expansion type puncture drainage tube, which is a minimally invasive surgical instrument for treating biliary tract diseases after percutaneous transhepatic cholangial puncture and fistulous tract expansion.
Background
Calculus of gallbladder and intrahepatic and extrahepatic bile ducts is a common disease and can induce complications such as acute and chronic cholecystitis, cholangitis, obstructive jaundice, biliary tumors and the like. The traditional treatment modes of gallstones are abdominal cholecystectomy and liver lobe resection, and the laparoscopic and choledochoscope technology is increasingly developed nowadays, and the cholecystotomy and the biliary tract exploration lithotomy under the laparoscope become important means for treating the gallstones.
The cholecystotomy under laparoscopy or the exploration of the biliary tract is required to be performed under general anesthesia. For the elderly and high-risk patients who can not tolerate the general anesthesia risk and the patients who receive a plurality of laparotomy operations, percutaneous transhepatic cholecystectomy and bile duct puncture drainage can be adopted firstly, then the fistula tract is gradually expanded, and when the fistula tract is expanded to more than 16Fr, a choledochoscope can be placed through the fistula tract to enter the gallbladder and lithotript in the duct. Fistulous tract expansion comprises two modes, wherein one mode is that different types of hard expansion tubes are used for expanding the fistulous tract in one operation, but the mode still needs to be completed under the general anesthesia state, complications such as bleeding, liver abscess and gallbladder leakage easily occur, the other mode is that a biliary tract drainage tube with a thicker type is replaced discontinuously, anesthesia is not needed in the mode, but the interval between two operations is longer, so that the disease treatment time is longer. If the interval time is shorter or a drainage tube with a thicker model is selected, the pain of the patient is increased, and the difficulty of tube placement is also increased.
Disclosure of Invention
The fistulous tract is dilated by using different types of hard dilatation tubes in one operation, but the method still needs to be completed in a general anesthesia state, and complications such as bleeding, liver abscess, gallbladder leakage and the like easily occur; the biliary tract drainage tube with a thicker type is replaced discontinuously, anesthesia is not needed in the mode, but the interval between two operations is longer, so that the disease treatment time is longer, if the interval time is shorter or the drainage tube with the thicker type is selected, the pain of a patient is increased, the technical problem of difficulty in tube placement is also increased, and the fistulous tract automatic expansion type puncture drainage tube is provided. The invention mainly utilizes the water absorption material arranged on the drainage tube, the water absorption material absorbs the water in the bile through the tube wall through the holes to expand, and then the polyethylene saccule membrane is filled, so that the invention has the function of automatically and slowly expanding the fistula tract, reduces the risk of the fistula tract rapidly expanding and tearing bleeding, and has small pain reaction; the different maximum expansion diameters are set by the density of the water-absorbing material.
The technical means adopted by the invention are as follows:
an fistula tract self-expanding puncture drainage tube comprising: the drainage tube comprises a tube section I, a tube section II, a tube section III and a connector which are sequentially communicated;
the pipe section I is a single-channel loop pipe and is internally provided with a channel I; five oval side holes are formed in the pipe wall of the pipe section I, and the five side holes are communicated with the channel I and used for discharging bile;
the pipe section II is a single-channel pipe, the outer wall of the pipe section II is a concave pipe wall, and a channel II communicated with the channel I is arranged in the pipe section II; a cylindrical water absorbing material and a polyethylene balloon membrane are sequentially wrapped on the concave pipe wall from inside to outside, the water absorbing material is communicated with the channel II through a through hole formed in the concave pipe wall, two ends of the polyethylene balloon membrane are fixed on the pipe wall through metal rings, the water absorbing material gradually expands after absorbing water in bile through the through hole, and the polyethylene balloon membrane is gradually filled to form a cylindrical balloon;
the pipe section III is a single-channel pipe, and a channel III communicated with the channel II is arranged in the pipe section III;
the connector is a single-channel pipe, is connected with a drainage bag to drain bile, is internally provided with a channel IV communicated with the channel III, and the surface of the tail end of the outer wall of the connector is provided with a spiral groove I;
the supporting tube is a single-channel metal tube, the body is cylindrical, damping blocks matched and connected with the inner wall of the channel I are arranged on two sides of the tube wall of the head end of the supporting tube, a single-channel connecting cap I is arranged at the tail end of the supporting tube, a spiral groove II and a spiral groove III are respectively arranged on the inner wall and the outer wall of the connecting cap I, and the spiral groove II is matched and connected with the spiral groove I; the body of the supporting tube is inserted into the channel IV and penetrates out of the channel I;
the needle core is a solid metal needle, the top end of the needle core is conical, the middle body of the needle core is cylindrical, the tail end of the needle core is provided with a connecting cap II, the inner wall of the connecting cap II is provided with a spiral groove IV, and the groove thread IV is matched and connected with the spiral groove III; the body of the stylet is inserted into and penetrates out of the channel in the supporting tube;
the outer side of the pipe wall at the front end of the pipe section I is connected with a traction wire, the traction wire enters the channel I through a through hole I formed in the pipe wall at the tail end of the pipe section I, sequentially passes through the channel I, the channel II and the channel III, enters the channel IV, and is led out through the channel IV and a through hole II formed in the pipe wall of the connector; a traction wire clamping groove is formed in the outer wall of the connector, the clamping groove is a U-shaped groove, and a protruding edge is formed in the surface of the clamping groove; the clamping groove is provided with a U-shaped buckle for fixing the traction wire, the surface of the buckle is parallel and level, and the embedded buckle is fixed through the protruding edge.
Further, the length of the drainage tube is 60-100cm, the inner diameter is 6.5Fr, and the outer diameter is 8.5 Fr.
Further, the outer diameter of the concave pipe wall is 7.5 Fr.
Furthermore, the puncture needle has a length of 60-100cm and an outer diameter of 4 Fr.
Further, the length of the support tube is 60-100cm, the inner diameter is 5Fr, and the outer diameter is 6 Fr.
Further, the water-absorbing material is water-absorbing fiber, water-absorbing cotton or water-absorbing resin and the like.
Compared with the prior art, the invention has the following advantages:
1. the fistulous tract automatic expansion type puncture drainage tube provided by the invention can be used for directly performing percutaneous transhepatic bile duct and gall bladder puncture, and meanwhile, the fistulous tract is gradually expanded by the gradually filled polyethylene balloon, so that the fistulous tract expansion range can be increased, the replacement frequency of the drainage tube is reduced, the course of disease is shortened, and the manufacturing cost is low.
2. The fistulous tract automatic expansion type puncture drainage tube provided by the invention is provided with the water absorption material, the water absorption material absorbs water in bile through the tube wall through the hole to expand, and further the polyethylene saccule membrane is filled, so that the fistulous tract automatic expansion type puncture drainage tube has the function of automatically and slowly expanding the fistulous tract, the risk of rapid expansion and tearing bleeding of the fistulous tract is reduced, and the pain reaction is small.
3. The fistula tract automatic expansion type puncture drainage tube provided by the invention has different maximum expansion diameters set through the density of the water absorption material.
In conclusion, the technical scheme of the invention can solve the problem that the fistulous tract is expanded by using different types of hard expansion tubes in one operation in the prior art, but the method still needs to be finished under the general anesthesia state, and complications such as bleeding, liver abscess, gallbladder leakage and the like are easy to occur; the biliary tract drainage tube with a thicker type is replaced discontinuously, anesthesia is not needed in the method, but the interval between two operations is longer, so that the disease treatment time is longer, if the interval time is shorter or the drainage tube with the thicker type is selected, the pain of a patient is increased, and the difficulty of tube placement is increased.
Based on the reasons, the invention can be widely popularized in the fields of minimally invasive medical technology, surgical instruments and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view showing the structure of an automatic expanding type puncture drainage tube for fistula tract according to the present invention.
FIG. 2 is a schematic view of the structure of a draft tube in an embodiment of the present invention.
FIG. 3 is a schematic view of the structure of a drain in an embodiment of the present invention (with the pull wire not tightened).
Fig. 4 is a schematic structural diagram of a support tube according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a stylet according to an embodiment of the invention.
Fig. 6 is a schematic view of an embodiment of the fistula tract automatic expanding puncture drainage tube in an operating state.
Fig. 7 is a schematic view of an fistula tract self-expanding puncture drain in an operative state (inflated polyethylene balloon membrane) in accordance with an embodiment of the invention.
In the figure: 1. a pipe section I; 11. a side hole; 2. a pipe section II; 21. polyethylene balloon membranes; 22. a water-absorbing material; 3. a pipe section III; 4. a connector; 5. supporting a tube; 51. a damping block; 6. a needle core; 7. a pull wire; 8. and (5) buckling.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1 to 7, the present invention provides an automatic expanding type fistula drainage tube, comprising: the drainage tube, place the stay tube 5 inside the drainage tube and place the nook closing member 6 inside the stay tube 5 in, the drainage tube is including the pipeline section I1, pipeline section II 2, pipeline section III 3 and the connector 4 that communicate in proper order. Wherein, the length of the drainage tube is 60-100cm, the inner diameter is 6.5Fr, and the outer diameter is 8.5 Fr.
The pipe section I1 is a single-channel loop pipe, and a channel I is arranged in the pipe section I1; be equipped with five oval side openings 11 on the pipe wall of pipeline section I1, five side opening 11 all with passageway I is linked together for discharge bile.
The pipe section II 2 is a single-channel pipe, the outer wall of the pipe section II is a concave pipe wall, and a channel II communicated with the channel I is arranged in the pipe section II; the cylindrical water absorbing material 22 and the polyethylene balloon membrane 21 are sequentially wrapped on the concave pipe wall from inside to outside, the water absorbing material 22 is communicated with the channel II through a through hole formed in the concave pipe wall, two ends of the polyethylene balloon membrane 21 are fixed on the pipe wall through metal rings, and the water absorbing material 22 gradually expands after absorbing water in bile through the through hole and gradually fills the polyethylene balloon membrane 21 to form the cylindrical balloon. Wherein, the water-absorbing material 22 is water-absorbing fiber, water-absorbing cotton or water-absorbing resin, etc. The outer diameter of the concave pipe wall is 7.5 Fr.
And the pipe section III 3 is a single-channel pipe, and a channel III communicated with the channel II is arranged in the pipe section.
The connector 4 is a single-channel pipe, is connected with a drainage bag to drain bile, is internally provided with a channel IV communicated with the channel III, and the surface of the tail end of the outer wall of the connector 4 is provided with a spiral groove I.
The supporting tube 5 is a single-channel metal tube, the body is cylindrical, damping blocks 51 which are matched and connected with the inner wall of the channel I are arranged on two sides of the tube wall of the head end of the supporting tube, a single-channel connecting cap I is arranged at the tail end of the supporting tube, a spiral groove II and a spiral groove III are respectively arranged on the inner wall and the outer wall of the connecting cap I, and the spiral groove II is matched and connected with the spiral groove I; the body of the support tube 5 is inserted from the channel IV and penetrates out of the channel I. Wherein the length of the support tube 5 is 60-100cm, the inner diameter is 5Fr, and the outer diameter is 6 Fr.
The needle core 6 is a solid metal needle, the top end of the needle core is conical, the middle body of the needle core is cylindrical, the tail end of the needle core is provided with a connecting cap II, the inner wall of the connecting cap II is provided with a spiral groove IV, and the groove thread IV is connected with the spiral groove III in a matched mode; the body of the needle core 6 is inserted into and extends out of the channel in the support tube 5. The needle core 6 is a puncture needle, the length of the puncture needle is 60-100cm, and the outer diameter is 4 Fr.
The outer side of the pipe wall at the front end of the pipe section I1 is connected with a traction wire 7, the traction wire 7 enters the channel I through a through hole I formed in the pipe wall at the tail end of the pipe section I1, sequentially penetrates through the channel I, the channel II and the channel III, enters the channel IV, and is led out through the channel IV and a through hole II formed in the pipe wall of the connector 4; a traction wire 7 clamping groove is formed in the outer wall of the connector 4, the clamping groove is a U-shaped groove, and a protruding edge is formed in the surface of the clamping groove; the clamping groove is provided with a U-shaped buckle 8 for fixing the traction wire 7, the surface of the buckle 8 is parallel and level, and the embedded buckle 8 is fixed through the protruding edge.
After the device is placed into a designated position of a bile duct or a gall bladder by percutaneous puncture under the guidance of ultrasound, the needle core 6 and the supporting tube 5 are withdrawn, the traction wire 7 is tightened, the head end of the traction wire is a loop, the traction wire 7 is fixed by a buckle 8 on the tube wall connector 4, and the connector 4 is connected with a drainage bag to drain bile. The water absorbent material 22 of the present invention gradually swells by absorbing water in bile through the vessel wall through the pores, and the swollen water absorbent material 22 gradually fills the polyethylene balloon membrane 21, gradually expanding the fistula tract to the maximum expanded outer diameter of the balloon.
The percutaneous transhepatic bile duct and gallbladder puncture can be directly implemented by adopting the invention, and simultaneously, the gradually filled polyethylene saccule gradually expands the fistula tract, so that the fistula tract expansion range can be increased, the drainage tube replacement frequency is reduced, the disease course is shortened, and the manufacturing cost is low. In addition, the balloon inflation device does not need to be connected with a pressure pump, and does not need to gradually increase the pressure by too much manpower, so that the balloon is gradually inflated to the maximum expansion diameter. The invention absorbs the water in the bile by the water absorption material, and automatically fills the saccule to expand the fistula tract without manual operation.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. An fistula tract automatic expansion type puncture drainage tube, comprising: the drainage tube comprises a drainage tube, a supporting tube (5) arranged in the drainage tube and a needle core (6) arranged in the supporting tube (5), wherein the drainage tube comprises a tube section I (1), a tube section II (2), a tube section III (3) and a connector (4) which are sequentially communicated;
the pipe section I (1) is a single-channel loop pipe, and a channel I is arranged in the pipe section I; five elliptical side holes (11) are formed in the pipe wall of the pipe section I (1), and the five side holes (11) are communicated with the channel I and used for discharging bile;
the pipe section II (2) is a single-channel pipe, the outer wall of the pipe section II is a concave pipe wall, and a channel II communicated with the channel I is arranged in the pipe section II; the water-absorbing material (22) and the polyethylene balloon membrane (21) are sequentially wrapped on the concave pipe wall from inside to outside, the water-absorbing material (22) is communicated with the channel II through a through hole formed in the concave pipe wall, two ends of the polyethylene balloon membrane (21) are fixed on the pipe wall through metal rings, and the water-absorbing material (22) gradually expands after absorbing water in bile through the through hole and gradually fills the polyethylene balloon membrane (21) to form a cylindrical balloon;
the pipe section III (3) is a single-channel pipe, and a channel III communicated with the channel II is arranged in the pipe section III;
the connector (4) is a single-channel pipe, is connected with a drainage bag to drain bile, is internally provided with a channel IV communicated with the channel III, and the surface of the tail end of the outer wall of the connector (4) is provided with a spiral groove I;
the supporting tube (5) is a single-channel metal tube, the body is cylindrical, damping blocks (51) which are matched and connected with the inner wall of the channel I are arranged on two sides of the tube wall of the head end of the supporting tube, a single-channel connecting cap I is arranged at the tail end of the supporting tube, a spiral groove II and a spiral groove III are respectively arranged on the inner wall and the outer wall of the connecting cap I, and the spiral groove II is matched and connected with the spiral groove I; the body of the supporting tube (5) is inserted into the channel IV and penetrates out of the channel I;
the needle core (6) is a solid metal needle, the top end of the needle core is in a conical tip shape, the middle body of the needle core is in a cylindrical shape, the tail end of the needle core is provided with a connecting cap II, the inner wall of the connecting cap II is provided with a spiral groove IV, and the groove thread IV is connected with the spiral groove III in a matched mode; the body of the needle core (6) is inserted into and penetrates out of a channel in the supporting tube (5);
the outer side of the pipe wall at the front end of the pipe section I (1) is connected with a traction wire (7), the traction wire (7) enters the channel I through a through hole I formed in the pipe wall at the tail end of the pipe section I (1), sequentially penetrates through the channel I, the channel II and the channel III, enters the channel IV, and is led out through the channel IV and a through hole II formed in the pipe wall of the connector (4); a traction wire (7) clamping groove is formed in the outer wall of the connector (4), the clamping groove is a U-shaped groove, and a protruding edge is formed in the surface of the clamping groove; the clamping groove is provided with a U-shaped buckle (8) for fixing the traction wire (7), the surface of the buckle (8) is flush, and the embedded buckle (8) is fixed through the protruding edge.
2. The fistula tract self-expanding puncture drain of claim 1, wherein the drain has a length of 60-100cm, an inner diameter of 6.5Fr and an outer diameter of 8.5 Fr.
3. The fistula tract self-expanding puncture drain of claim 1 or 2, wherein the concave wall has an outer diameter of 7.5 Fr.
4. The fistula tract automatic expansion type puncture drainage tube according to claim 1, wherein the puncture needle has a length of 60 to 100cm and an outer diameter of 4 Fr.
5. The fistula tract self-expanding puncture drainage tube according to claim 1, wherein the support tube (5) has a length of 60-100cm, an inner diameter of 5Fr and an outer diameter of 6 Fr.
6. The fistula tract self-expanding puncture drain according to claim 1 or 2, wherein the water absorbent material (22) is a water absorbent fiber, a water absorbent cotton or a water absorbent resin.
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| CN202011484858.1A CN112472969A (en) | 2020-12-15 | 2020-12-15 | Fistulous tract automatic expansion type puncture drainage tube |
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| CN202011484858.1A CN112472969A (en) | 2020-12-15 | 2020-12-15 | Fistulous tract automatic expansion type puncture drainage tube |
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| CN114699634A (en) * | 2022-02-24 | 2022-07-05 | 复旦大学附属中山医院 | Double-cavity drainage tube and drainage assembly |
| WO2024088077A1 (en) * | 2022-10-26 | 2024-05-02 | 宁波大学附属第一医院 | Surgical support catheter, surgical safety catheter, surgical safety catheter kit, and fistulization device |
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