CN113633835A - Drainage tube capable of expanding narrow part of biliary tract - Google Patents
Drainage tube capable of expanding narrow part of biliary tract Download PDFInfo
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- CN113633835A CN113633835A CN202110921980.9A CN202110921980A CN113633835A CN 113633835 A CN113633835 A CN 113633835A CN 202110921980 A CN202110921980 A CN 202110921980A CN 113633835 A CN113633835 A CN 113633835A
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- drainage hose
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- 210000003445 biliary tract Anatomy 0.000 title claims abstract description 29
- 238000004080 punching Methods 0.000 claims description 19
- 208000031481 Pathologic Constriction Diseases 0.000 abstract description 23
- 210000005077 saccule Anatomy 0.000 abstract description 18
- 230000036262 stenosis Effects 0.000 abstract description 9
- 208000037804 stenosis Diseases 0.000 abstract description 9
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- 238000000034 method Methods 0.000 description 5
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 210000000232 gallbladder Anatomy 0.000 description 4
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- 201000005267 Obstructive Jaundice Diseases 0.000 description 3
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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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- 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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
-
- 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
-
- 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
- A61M25/1018—Balloon inflating or inflation-control devices
- A61M25/10184—Means for controlling or monitoring inflation or deflation
- A61M25/10185—Valves
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Public Health (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides a drainage tube capable of expanding a narrow part of a biliary tract, which sequentially comprises a puncture needle, an inner sleeve and a drainage hose from inside to outside, wherein the front end of the drainage hose is axially provided with a plurality of drainage holes, the front end of the drainage hose can form a coil, the middle section of the drainage hose is provided with a balloon, and the two sides of the balloon are provided with the drainage holes. The drainage tube provided by the invention is provided with the inflatable saccule, the inflatable saccule can be used for expanding the biliary tract stenosis position of a patient when in use, the drainage of obstruction of biliary tracts through a PTCD way and various limitations and the continuous expansion of the stenosis position are met, the bile duct forming is facilitated, and the situations that the current drainage tube for interventional cholangioplasty can not provide enough support for the stenosis position for a long time and the drainage can not be carried out simultaneously by the simple saccule expansion are changed.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a drainage tube capable of expanding a narrow part of a biliary tract.
Background
Malignant Obstructive Jaundice (MOJ) refers to a series of diseases of hyperbilirubinemia and obstructive jaundice caused by bile discharge obstruction due to direct invasion or indirect or compression of malignant tumors in the internal and external biliary tract of the liver. Common diseases that cause obstructive jaundice include: pancreatic cancer, periampulla carcinoma, cholangiocarcinoma, liver cancer, gallbladder cancer, etc. The main clinical manifestations are: yellow staining of skin sclera, deepening of urine color, lightening of stool color and the like, and abnormal liver function and blood coagulation function, which cause increased bleeding risk and increased liver failure risk in and after operation. Ultrasonic or interventional percutaneous transhepatic biliary tract and gallbladder puncture drainage, endoscopic biliary tract drainage and laparoscopic palliative cholangiointestinal anastomosis can be brought into the minimally invasive jaundice reduction category, but the requirement of the endoscopic jaundice reduction mode on the condition of a patient is higher.
Percutaneous Transhepatic Biliary Drainage (PTBD) and Percutaneous Transhepatic Cholecystectomy (PTCD) are the most effective and widely used procedures at present, and can effectively reduce jaundice and promote liver function recovery.
The PTBD and PTCD drainage tube (shown in figure 1) which is commonly used at present mainly comprises a puncture needle, an inner sleeve and an external drainage hose, wherein a row of drainage holes (shown in figure 2) are formed in the drainage hose, a traction wire is fixed on one side close to the front end of the drainage hose, a side hole is formed in the other side of the row of drainage holes, and the other end of the traction wire extends out of the interior of the drainage hose through the side hole. When in use, the drainage tube is guided into the liner to a designated position, the puncture needle and the inner sleeve are withdrawn, the traction wire is tensioned at the other end of the drainage hose, and the front end of the drainage hose in the body is gradually close to the side hole until the drainage hose is curled to an alpha-shaped (pigtail-shaped) coil as shown in figure 3-2.
However, the current drainage tubes such as PTBD and PTCD are single in structure, the most basic function of the drainage tubes is to realize bile drainage, and the drainage tubes have no treatment effect on obstructed parts. Particularly benign diseases of biliary stricture, such as biliary stricture after in situ liver transplantation (common complication after transplantation, incidence rate is about 9.3% -27%), which is mainly stricture at anastomotic site and seriously affects prognosis and survival period of patients; for example, after a surgical choledocholithiasis, a plurality of drainage tubes are often required to be placed to play a role in supporting and drainage, so as to prevent stenosis after bile duct operation. In clinic, Endoscopic Retrograde Cholangiopancreatography (ERCP) and temporary drainage tube implantation are the most common treatment modes at present, and the incidence of biliary tract infection after ERCP operation is reported in documents to be different from 0.5% to 10%, but for patients with severe biliary stenosis or occlusion, the ERCP is difficult to realize biliary tract recanalization, and moreover, the ERCP must cut open the ODDS sphincter, so that the ODDS sphincter function is permanently lost. Therefore, the existing drainage tube has a single structure, and needs a plurality of instruments to be matched with the biliary stricture which often occurs to a patient, so that the patient suffers from pain.
Disclosure of Invention
The invention aims to solve the problem of single function of the existing drainage tube and aims at the common biliary stricture problem of patients with biliary diseases, provides the drainage tube with the functions of drainage and expansion, can be applied to various treatment processes with biliary stricture, ensures bile drainage and expands biliary stricture parts through the saccule at the same time, is suitable for biliary stricture or obstruction caused by various reasons through a PTCD (percutaneous transluminal coronary intervention) way, can ensure bile drainage and is beneficial to biliary tract shaping recovery.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a drainage tube of expandable biliary tract narrow part, includes pjncture needle 1, interior sleeve pipe 2, drainage hose 3 from inside to outside in proper order, and the front end of drainage hose 3 is opened along the axial has a plurality of drainage hole 32, and the front end of drainage hose can form the coil, and the drainage hose middle section is provided with sacculus 36, and the sacculus both sides are all opened drainage hole.
Preferably, the drainage hose 3 further comprises an inflation tube 37 and a pneumatic valve 38, wherein one end of the inflation tube 37 is connected with the balloon 36, and the other end is connected with the pneumatic valve 38.
Preferably, the inflation tube 37 is disposed inside the drainage tube and connected to the balloon 36 through the wall of the drainage tube.
Preferably, at least two inflation holes are formed between the balloon 36 and the inflation tube 37.
Preferably, the drainage hose may form at least one drainage hole spaced between the coil portion and the balloon.
Preferably, the balloon is provided with radiographic markers 34.
Preferably, the balloon 36 is a compliant balloon.
Preferably, the maximum diameter of the balloon 36 after inflation is no more than 10 mm.
Preferably, the length of the balloon 36 is 2-4 cm.
Preferably, the body 31 of the drainage hose is integrally formed with the balloon 36.
Preferably, a plurality of punching mark points 33 which are arranged along the axial direction are arranged on the surface of the opposite side of the non-drainage hole of the drainage hose 3 along the line, and the outer diameter of the drainage hose coil after punching is marked near the hole mark points 33.
Preferably, the drainage tube further comprises a traction wire 4 for forming the drainage hose into a coil, and one end of the traction wire 4 is fixed within 3mm from the front end of the drainage hose.
Compared with the prior art, the invention has the beneficial effects that:
1. the drainage tube provided by the invention is provided with the inflatable saccule, the inflatable saccule can be used for expanding the biliary tract stenosis position of a patient, the PTCD (percutaneous transluminal coronary intervention) treatment of cholestasis of the biliary tract stenosis caused by various reasons such as surgical choledochostomy and lithotomy, liver tumor, liver transplantation and the like can be met, the drainage effect on the cholestasis is good, and the biliary tract expansion and forming effect is exerted. The drainage of obstruction of various limited biliary tracts through a PTCD way and continuous expansion of a narrow part are met, the bile duct forming is facilitated, and the situations that the existing interventional cholangioplasty drainage tube cannot provide enough long-time support for the narrow part and cannot simultaneously drain by pure balloon expansion are changed.
2. In a preferred technical scheme of the invention, a plurality of punching mark points which are arranged along the axial direction are arranged on the surface of the opposite side of the non-drainage hole of the drainage hose along the line, and the outer diameter of the drainage hose coil after punching is marked near the hole mark points, so that medical personnel can cut the hole and adjust the coil size according to the requirements of patients.
Drawings
FIG. 1 is a picture of a commercially available PTCD drainage tube;
wherein, 1 is a puncture needle, 2 is an inner sleeve, and 3 is a drainage hose;
FIG. 2 is a photograph of the front end of a commercially available PTCD drainage tube;
wherein, 4 is a traction wire, 31 is a tube body of a drainage hose, 32 is a drainage hole, 35 is a fixation point of the traction wire, and 36 is a side hole;
FIG. 3-1 is a partially tensioned configuration of a pull wire of a commercially available PTCD drainage tube;
FIG. 3-2 is a fully tensioned configuration of a commercially available PTCD drainage tube pull wire;
FIG. 4 is a schematic view of a drainage hose structure of the drainage tube of the present invention;
wherein, 4 is a traction wire, 31 is a tube body of a drainage hose, 32 is a drainage hole, 33 is a side hole/punching mark point, 35 is a connection part of the traction wire, 36 is a balloon, 37 is an inflation tube, 38 is an air pressure valve, and 39 is an inflation hole;
FIG. 5 is a schematic structural view of a balloon in an uninflated state according to an embodiment of the present invention;
wherein, 4 is a traction wire, 31 is a tube body of a drainage hose, 32 is a drainage hole, 33 is a side hole/punching mark point, 34 is a radioactive ray developing mark, 35 is a traction wire connecting part, 36 is a balloon, 37 is an inflation tube, 38 is an air pressure valve, and 39 is an inflation hole;
FIG. 6 is a schematic diagram of a balloon inflated state according to an embodiment of the present invention;
wherein, 4 is a traction wire, 31 is a tube body of a drainage hose, 32 is a drainage hole, 33 is a side hole/punching mark point, 34 is a radioactive ray developing mark, 35 is a traction wire connecting part, 36 is a balloon, 37 is an inflation tube, 38 is an air pressure valve, and 39 is an inflation hole;
FIG. 7 is a schematic view of the drainage hose after coiling in accordance with one embodiment of the present invention;
wherein, 4 is a traction wire, 31 is a tube body of a drainage hose, 32 is a drainage hole, 33 is a side hole/punching mark point, 35 is a connection part of the traction wire, 36 is a balloon, 37 is an inflation tube, and 39 is an inflation hole;
FIG. 8 is a cross-sectional view of a drainage hose of the present invention;
wherein 31 is a tube body of the drainage hose, 4 is a traction wire, and 37 is an inflation tube;
FIG. 9 is a schematic view of the front end of the drainage hose according to a preferred embodiment of the present invention;
wherein, 4 is a traction wire, 31 is a drainage hose, 32 is a drainage hole, 33 is a punching mark point, and 35 is a connection part of the traction wire.
Detailed Description
In the present invention, the "front end of the drainage tube" and the "end of the drainage tube" refer to the end which can be inserted into the body of the patient. Correspondingly, the other ends of the drainage tube and the drainage hose are called as the rear ends. The front end, the end part, the rear end, the rear part, the middle section and the like do not form absolute space relation limitation, and are just a concept of relative position. As will be appreciated by those skilled in the art.
In the invention, the coil is a structure with a closed ring shape formed by drawing the front end of the drainage hose through a drawing wire.
In the invention, the "coil outer diameter" refers to the diameter of the outermost circle of the drainage tube forming the coil, but does not include the length of the drainage tube extending out of the side hole/punching mark point.
In the present invention, the "pull wire fixing site" refers to a position (shown as 35 in fig. 4 to 7 and 9) where the pull wire is fixed on the drainage hose.
The invention provides a drainage tube capable of expanding narrow parts of biliary tracts, which sequentially comprises a puncture needle 1, an inner sleeve 2 and a drainage hose 3 from inside to outside, wherein the front end of the drainage hose is axially provided with a plurality of drainage holes 32, the front end of the drainage hose can form a coil, the middle section of the drainage hose is provided with a balloon 36, both sides of the balloon are provided with the drainage holes 32, and the drainage hose can form at least one drainage hole between the coil part and the balloon 36. In order to dilate the biliary stricture part while draining bile and provide support for PTCD operation treatment of various biliary strictures, the balloon 36 is additionally arranged on the drainage hose, the balloon 36 can be inflated and expanded, and is tightly attached to and coated on the outer wall of the tube body of the drainage hose when not inflated, and the inflated balloon can apply pressure on the biliary stricture part to realize effective dilatation of the biliary stricture part. The drainage holes are formed in the two sides of the balloon, so that the stable drainage effect can be exerted. The drainage tube is provided with the saccule, the saccule can support the narrow part of the biliary tract after being expanded, but the saccule also blocks the narrow part of the biliary tract to prevent bile from flowing, so the drainage tube is arranged on both sides of the saccule to ensure the smooth and stable drainage of the bile. Preferably, at least 2 drainage holes are respectively formed in two sides of the balloon 36. The balloon and the drainage hose can form a coil part with a certain interval, so that the coil and the balloon are prevented from being mutually interfered.
In the drainage tube, the puncture needle 1 is sleeved with an inner sleeve 2, the front end of the puncture needle is longer than the inner sleeve 2, the drainage hose 3 is sleeved outside the inner sleeve 2, the front end of the drainage hose is shorter than the inner sleeve 2, the drainage tube is a general drainage tube structure for PTBD and PTCD drainage, and any improvement on structures such as a puncture needle, the inner sleeve and a traction wire can be applied to the invention.
In the invention, the inflation and deflation of the balloon in the drainage hose 3 can be realized through various structures, in a preferred embodiment, the inflation and deflation of the balloon are realized through an inflation tube 37 and a pneumatic valve 38, one end of the inflation tube 37 is connected with the balloon 36, the other end of the inflation tube 37 is connected with the pneumatic valve 38, the inflation tube 37 plays a communicating role, the pneumatic valve 38 can seal the balloon and the gas in the inflation tube to flow out, and a syringe or other inflation and deflation devices are used for puncturing the pneumatic valve to inflate or suck out the gas during inflation and deflation. More preferably, as shown in fig. 4 and 8, the inflation tube 37 is disposed inside the drainage tube and connected to the balloon 36 through the wall of the drainage tube. Further preferably, the inflation tube 37 is connected with the balloon through at least 2 inflation holes 39 to realize inflation and deflation of the balloon, and more than 2 inflation holes can simultaneously inflate two sides of the balloon, so as to prevent the risk that a single inflation hole inflates one side of the balloon to change the position of the balloon.
In the present invention, the balloon 36 is a compliant balloon, the inflation of the balloon is positively correlated with the air pressure, and the inflation range of the balloon is controlled by the air pressure filled into the balloon, so that the balloon is used to expand the biliary stricture part of the patient to a normal range. Some sacculus of taking sacculus drainage tube are mostly non-compliance sacculus, mainly expand to a certain point, and its main function is that the antiskid is taken off, can't effectively expand the biliary tract.
Preferably, the balloon is provided with at least one radiographic development point, so that the position of the balloon in the biliary tract is adjusted through development in the surgical process, and the positioning effect is achieved. In a preferred embodiment of the invention, a radiographic image point is respectively arranged on two sides of the balloon close to the drainage tube.
Preferably, the maximum diameter of the balloon 36 after inflation is no more than 10 mm; preferably, the balloon 36 has an outer diameter which is approximately the same as the outer diameter of the drainage tube 3 when it is not inflated. Preferably, the length of the saccule is 2-4cm, so that the effective expansion of the biliary tract is realized. In the present invention, the tube 31 of the drainage tube and the balloon 36 are preferably integrally formed; more preferably, the drainage hose is integrally formed.
In a preferred embodiment as shown in fig. 5 and 6, the drainage tube has an inner diameter of 6-8Fr, a balloon length of 2-4cm, each drainage hole 32 has a minor axis of 2mm and a major axis of 3mm, any two drainage holes are spaced 1cm apart, and the coiled portion of the drainage tube is spaced 1cm from the balloon (with one drainage hole).
In a preferred embodiment of the present invention, as shown in fig. 9, the surface of the drainage hose 3 along the opposite side of the non-drainage hole is provided with a plurality of perforation mark points 33 arranged along the axial direction, and the vicinity of the perforation mark points 33 indicates the outer diameter of the coil of the drainage hose after perforation. In the invention, a plurality of punching mark points 33 are arranged along the axial direction of the drainage hose 3, and the punching mark points 33 are arranged on the opposite sides along the non-drainage hole so as to prevent a tool for enabling the drainage hose to restore to a straight line from penetrating out of a punching position when the drainage tube is pulled out and further injuring the inner membrane of the gallbladder of a patient. In the present invention, a plurality of perforation marks 33 are located according to the outer diameter of the coil and marked near the perforation marks, so that the medical staff can clearly expect the size of the coil. Preferably, the punching mark points are arranged at positions of the drainage hose coil with the outer diameters of 1cm, 1.5cm and 2cm after punching. In the in-service use in-process, medical personnel also can be according to the coil external diameter estimation of the mark point of punching of mark point to non-mark point and then trompil in other positions, and the mark point that punches this moment plays the scale suggestion effect.
Preferably, the drainage tube further comprises a traction wire 4 which enables the drainage hose to form a coil, and one end of the traction wire 4 is fixed within 3mm from the front end of the drainage hose. In the present invention, one end of the traction wire 4 is preferably fixed in the drainage hose 3 to fix the traction wire. Preferably, one end of the traction wire 4 is fixed within 3mm from the front end of the drainage hose 3 (namely, the distance from the connection part 35 of the traction wire to the front end of the drainage hose is less than or equal to 3mm), so that the extension length of the front end of the drainage hose after the coil is coiled can be further reduced, the difficulty of coiling the coil in the gallbladder of a patient is reduced, and the injury of the end part of the drainage hose to the inner membrane of the biliary tract of the patient is prevented. Further preferably, the distance from the traction wire connection 35 to the front end of the drainage hose is 2-3 mm. On the basis, because the connecting part 35 of the traction line is close to the front end of the drainage hose, the perforating mark point 33 and the connecting part 35 of the traction line can be arranged at two sides along the drainage hole or at the same side, and the coil effect cannot be influenced.
When the drainage tube is used, the balloon of the drainage tube is guided to the narrow part of the biliary tract according to the developing observation result, and the coil drainage and the balloon of the drainage tube can be independently used: (1) firstly, the traction wire 4 is tensioned to form a coil at the front end of the drainage hose, and bile is drained through a drainage hole of the drainage hose; injecting air from the air pressure valve 39 by using an injector to fill the saccule and maintain the pressure, enabling the saccule to be in a continuous expansion state to expand the narrow part of the biliary tract of the patient, extracting air in the saccule from the air pressure valve 39 by using the injector after drainage is finished, recovering the saccule, loosening the traction line 4 and extracting the drainage tube; or (2) injecting air from the air pressure valve 39 by using an injector to fill the saccule and maintain pressure, expanding the narrow part of the biliary tract of the patient, then tightening the traction line 4 to form a coil at the front end of the drainage hose, draining the bile through the drainage hole of the drainage hose, extracting air in the saccule from the air pressure valve 39 by using the injector after drainage is finished, recovering the saccule, loosening the traction line 4 and extracting the drainage tube.
In a preferred embodiment of the present invention, the surface of the non-drainage hole of the drainage hose 3 opposite to the line is provided with a plurality of perforation mark points 33 arranged along the axial direction, so that when the drainage hose is used, a medical worker can select a proper perforation mark point to cut a hole to adjust the size of the coil, when the drainage hose in the preferred embodiment is used, firstly, the required inner diameter specification of the drainage hose and the required rear outer diameter dimension of the coil are evaluated according to the gallbladder condition of the patient observed by development, a proper position is selected according to the evaluation result and the scales on each perforation mark point on the drainage hose to cut the hole, after the hole is cut, one end of a traction wire close to the front end of the drainage hose is fixed at the other end of the traction wire, and the traction wire penetrates into the drainage hose from the opening and extends to the outside of the rear end of the drainage hose (if necessary, threading can be carried out by the inner cannula 2), and the inner cannula 2 and the puncture needle 1 are sequentially installed. The method of use is the same as that described above and will not be described further.
The drainage tube provided by the invention has a drainage effect on biliary obstruction and stenosis caused by various reasons, and can expand the stenosis section, thereby being beneficial to biliary tract formation; meanwhile, for possible biliary stricture after various liver operations, the biliary tract shaping is also facilitated after the operation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a drainage tube of expandable biliary tract narrow portion, includes pjncture needle, interior sleeve pipe, drainage hose from inside to outside in proper order, and the front end of drainage hose is opened along the axial has a plurality of drainage hole, and the front end of drainage hose can form the coil, and its characterized in that, drainage hose middle section is provided with the sacculus, and the sacculus both sides all open drainage hole.
2. The drainage tube of claim 1, wherein the drainage hose further comprises an inflation tube and a pneumatic valve, one end of the inflation tube is connected with the balloon, and the other end of the inflation tube is connected with the pneumatic valve.
3. The drainage tube of claim 2, wherein the inflation tube is disposed inside the drainage tube and connected to the balloon through the wall of the drainage tube.
4. The drain tube of claim 3 wherein there are at least two inflation holes between the balloon and the inflation tube.
5. The drainage tube of claim 1 wherein the drainage hose defines at least one drainage aperture spaced between the coil portion and the balloon.
6. The drainage tube of claim 1 wherein said balloon is provided with radiographic markers.
7. The drain tube of claim 1 or 5 wherein the maximum diameter of the balloon after inflation is no more than 10 mm.
8. The drainage tube of claim 1 wherein the body of the drainage hose is integrally formed with the balloon.
9. The drainage tube of claim 1, wherein the surface of the non-drainage hole of the drainage tube along the opposite side of the line is provided with a plurality of punching mark points which are arranged along the axial direction, and the vicinity of the punching mark points indicates the outer diameter of the coil of the drainage tube after punching.
10. The draft tube according to claim 9, further comprising a pulling wire for forming the drainage hose into a coil, one end of the pulling wire being fixed within 3mm from the front end of the drainage hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921980.9A CN113633835A (en) | 2021-08-12 | 2021-08-12 | Drainage tube capable of expanding narrow part of biliary tract |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921980.9A CN113633835A (en) | 2021-08-12 | 2021-08-12 | Drainage tube capable of expanding narrow part of biliary tract |
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| Publication Number | Publication Date |
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| CN113633835A true CN113633835A (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110921980.9A Pending CN113633835A (en) | 2021-08-12 | 2021-08-12 | Drainage tube capable of expanding narrow part of biliary tract |
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| Country | Link |
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| CN (1) | CN113633835A (en) |
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| CA2488588A1 (en) * | 2004-11-30 | 2006-05-30 | Norborn Medical, Inc. | Guidewire for crossing occlusions or stenosis |
| WO2008132735A1 (en) * | 2007-04-25 | 2008-11-06 | Mediflow Medical Solutions Ltd. | A urethral implant and method |
| CN208160784U (en) * | 2017-11-29 | 2018-11-30 | 苏州佳洲医疗器械有限公司 | A kind of drainage catheter suit |
| CN111249602A (en) * | 2020-03-31 | 2020-06-09 | 吴忠隐 | Medical PTCD catheter |
| CN213077150U (en) * | 2020-06-03 | 2021-04-30 | 王芬 | Indwelling dilatation balloon catheter for treating benign biliary stricture |
| CN213609293U (en) * | 2020-08-13 | 2021-07-06 | 中国人民解放军西部战区总医院 | Three-cavity air bag catheter for percutaneous transhepatic biliary stricture dilatation drainage |
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2021
- 2021-08-12 CN CN202110921980.9A patent/CN113633835A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2488588A1 (en) * | 2004-11-30 | 2006-05-30 | Norborn Medical, Inc. | Guidewire for crossing occlusions or stenosis |
| WO2008132735A1 (en) * | 2007-04-25 | 2008-11-06 | Mediflow Medical Solutions Ltd. | A urethral implant and method |
| CN208160784U (en) * | 2017-11-29 | 2018-11-30 | 苏州佳洲医疗器械有限公司 | A kind of drainage catheter suit |
| CN111249602A (en) * | 2020-03-31 | 2020-06-09 | 吴忠隐 | Medical PTCD catheter |
| CN213077150U (en) * | 2020-06-03 | 2021-04-30 | 王芬 | Indwelling dilatation balloon catheter for treating benign biliary stricture |
| CN213609293U (en) * | 2020-08-13 | 2021-07-06 | 中国人民解放军西部战区总医院 | Three-cavity air bag catheter for percutaneous transhepatic biliary stricture dilatation drainage |
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