CN114699634A

CN114699634A - Double-cavity drainage tube and drainage assembly

Info

Publication number: CN114699634A
Application number: CN202210177031.9A
Authority: CN
Inventors: 张雯; 颜志平; 罗剑钧; 马婧嵚; 杜楠; 余佳泽; 侯思楠; 周馨
Original assignee: Zhongshan Hospital Fudan University
Current assignee: Zhongshan Hospital Fudan University
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-07-05

Abstract

The invention provides a double-cavity drainage tube and a drainage assembly, wherein the double-cavity drainage tube comprises a tube assembly, the tube assembly comprises a main tube, and the main tube comprises a main tube head section and a main tube tail section which are connected; the accessory pipe, the accessory pipe is including the accessory pipe head section and the accessory pipe afterbody section that meet, be responsible for the afterbody section with the accessory pipe afterbody section borders on side by side, be responsible for the head section in order to separate the mode of accessory pipe is convoluted, the accessory pipe head section is in order to separate the mode of being responsible for is crooked, be responsible for the head section with a plurality of side opening has been seted up respectively to the accessory pipe head section. Not only play the effect of the simultaneous drainage of the many steric hindrance stalks of biliary tract, provide good drainage for complicated obstruction, still reduce the discomfort and the operation degree of difficulty that many drainage tubes need be put into to can put into for obstruction position provides interior treatment particle to and the bile introduces the demand, realize short-range radiotherapy, still improve patient self bile utilization ratio.

Description

Double-cavity drainage tube and drainage assembly

Technical Field

The invention relates to the field of medical instruments, in particular to a double-cavity drainage tube and a drainage component which can be applied to bile duct obstruction.

Background

Bile duct obstruction refers to mechanical obstruction of bile ducts, which is characterized by unsmooth bile discharge and even complete blockage of bile ducts caused by pathological changes in bile duct cavities, diseases of the bile duct walls and infiltration and compression outside the bile duct walls, and is manifested as jaundice, dull pain in the upper abdomen, cold fever and the like, wherein malignant obstructive jaundice is partial or complete mechanical obstruction of bile ducts caused by primary or secondary malignant tumors, and is one of common clinical manifestations of hepatobiliary pancreatic tumors, and obstructive jaundice caused by abdominal lymph node metastasis. The obstruction is divided into high, middle and low obstruction according to the difference of obstruction parts, wherein the high obstruction is the difficult problem of clinical treatment. In addition, according to Bismuth typing, the tumors in the hepatic portal area are divided into four types according to different obstruction parts and ranges, namely type I, type II, type III and type IV.

Percutaneous Transluminal Cholangiotomy (PTCD) is used as a main treatment means for treating malignant obstructive jaundice, and has important significance for obstructive jaundice caused by unresectable primary focus and preoperative jaundice reduction. The traditional treatment modes at home and abroad are puncture drainage, jaundice reduction and infection control. The treatment of I type and middle and low position obstruction is simpler, and the drainage can be completely achieved by drainage of one drainage tube or stent implantation. However, patients with type II to type IV obstruction need two or more drainage tubes for drainage, so that the complete drainage effect can be achieved. The traditional drainage mode has the following defects:

firstly, for patients with type II-IV obstruction, the mode of placing a plurality of drainage tubes is easy to increase the difficulty of operation, the infection incidence is high, and discomfort and complications of the patients are caused.

Second, for patients with high-level obstruction who are not surgically resectable and suitable for stent implantation, bile loss due to simple external drainage can cause a reduction in physical performance of the patient. The research shows that the oral administration of bile can improve the digestion and absorption functions of patients and improve the nutritional status and the immunity. However, for most patients, the direct oral administration of bile is not a good experience, and the ingredients are special and the taste is poor.

Thirdly, the traditional drainage tube only plays a role of drainage and has a single function. In the face of the clinical extensive demands, the drainage device is very important for the I type or middle and low position obstruction patients which are not suitable for being implanted with the stent to play a role in treating the obstruction while draining.

In conclusion, how to perform the treatment function and improve the utilization rate of bile without increasing the drainage tube of a patient and relieving the pain is a problem to be solved in clinic.

Disclosure of Invention

In order to solve the problems, the invention provides the double-cavity drainage tube and the drainage component which provide a good drainage effect for complicated biliary obstruction, avoid discomfort and complications caused by a plurality of drainage tube branches, can treat the complicated biliary obstruction and improve the utilization rate of bile.

In accordance with one object of the present invention, there is provided a dual lumen drainage catheter comprising a tube assembly comprising:

the main pipe comprises a main pipe head section and a main pipe tail section which are connected;

the accessory pipe, the accessory pipe is including the accessory pipe head section and the accessory pipe afterbody section that meet, be responsible for the afterbody section with the accessory pipe afterbody section borders on side by side, be responsible for the head section in order to separate the mode of accessory pipe is convoluted, the accessory pipe head section is in order to separate the mode of being responsible for is crooked, be responsible for the head section with a plurality of side opening has been seted up respectively to the accessory pipe head section.

As a preferred embodiment, further comprising a pulling assembly, said pulling assembly comprising:

the fixing piece is arranged at the tail part of the main pipe;

and one end of the traction wire is fixed at the tail part of the main pipe, and the other end of the traction wire is led into the main pipe from the tail part of the main pipe and penetrates out of the head part of the main pipe, then penetrates back into the main pipe in a manner of being far away from the head part of the main pipe, and penetrates out of the tail part of the main pipe to be connected with the fixing piece.

As a preferred embodiment, the method further comprises the following steps:

a converging member;

a connection pipe, the number of which is at least one, and which connects the main pipe and the tail of the sub pipe through the confluence member.

As a preferred embodiment, the fixing element is located on a side of the converging element away from the connecting pipe, and the converging element is provided with a converging element channel through which the traction wire passes, and the fixing element is provided with a fixing element channel through which the traction wire passes.

In a preferred embodiment, the main pipe head section and the auxiliary pipe head section are respectively provided with a marking line for punching.

As a preferred embodiment, further comprising:

and the pipe body is respectively sleeved outside the tail section of the main pipe and the tail section of the auxiliary pipe.

In a preferred embodiment, the main pipe tail portion and the auxiliary pipe tail portion are communicated with each other.

As a preferred embodiment, the inner walls of the primary and secondary tubes are provided with a hydrophilic coating.

According to another object of the present invention, there is also provided a drainage assembly comprising the dual-lumen drainage tube of the above embodiment, the drainage assembly further comprising:

the tearable sheath comprises two tearable pieces, and the two tearable pieces are spliced to form a pin detaching cavity for accommodating the double-cavity drainage tube.

In a preferred embodiment, the tear-off member includes a tear-off portion, and a wing portion provided on the tear-off portion.

Compared with the prior art, the technical scheme has the following advantages:

be responsible for the afterbody section with the accessory duct afterbody section borders on side by side, so that be responsible for with the drainage tube of double-chamber is constituteed to the accessory duct, and utilize crooked accessory duct head section, and the coiling be responsible for the head section and get into different positions respectively and carry out the drainage, not only play the effect of the simultaneous drainage of the many steric hindrance stalks of biliary tract, for complicated obstruction provides good drainage, still reduce the discomfort and the operation degree of difficulty that many drainage tubes of patient need put into, and can provide interior treatment particle for obstruction position and put into, and the bile introduces the demand, realize short-range radiotherapy, still improve patient self bile utilization ratio, but wide application is in clinical practice, not only bring the gospel for vast patient, more can promote relevant subject cross progress, realize the obstetrical and research combination and conversion achievement, the development of pulling medical technology industry.

The invention is further described with reference to the following figures and examples.

Drawings

FIG. 1 is a schematic structural view of a dual lumen drainage tube according to the present invention;

FIG. 2 is a cross-sectional view of a dual lumen drainage tube according to the present invention;

FIG. 3 is an enlarged partial schematic view of the dual lumen drainage tube of the present invention;

FIG. 4 is a schematic side port view of the dual lumen drainage tube of the present invention;

FIG. 5 is a schematic cross-sectional view of a tube assembly according to the present invention;

FIG. 6 is a schematic view of a peelable sheath according to the present invention;

fig. 7 to 14 are schematic views illustrating a flow of the drainage assembly according to the present invention.

In the figure: 100 dual lumen drainage tube, 110 tube assembly, 111 main tube, 1111 main tube head section, 1112 main tube tail section, 112 auxiliary tube, 1121 auxiliary tube head section, 1122 auxiliary tube tail section, 113 side hole, 120 pulling assembly, 121 fastener, 1211 fastener channel, 122 pulling wire, 130 converging member, 131 converging member channel, 140 connecting tube, 150 tube body, 200 tearable sheath, 210 tearable member, 211 tearable portion, 212 wing, 220 knock off lumen.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

As shown in fig. 1 to 4, the double lumen drainage tube 100 comprises a tube assembly 110, the tube assembly 110 comprising:

a main tube 111, the main tube 111 comprising a main tube head section 1111 and a main tube tail section 1112 connected together;

the auxiliary pipe 112 comprises an auxiliary pipe head part 1121 and an auxiliary pipe tail part 1122 which are connected, the main pipe tail part 1112 and the auxiliary pipe tail part 1122 are abutted side by side, the main pipe head part 1111 is coiled in a manner of separating the auxiliary pipe 112, the auxiliary pipe head part 1121 is bent in a manner of separating the main pipe 111, and a plurality of side holes 113 are respectively formed in the main pipe head part 1111 and the auxiliary pipe head part 1121.

Be responsible for afterbody section 1112 with vice pipe afterbody section 1122 borders on the shape wholly side by side, so that be responsible for 111 with the drainage tube 100 of two-chamber is constituteed to vice pipe 112, and utilize the crooked vice nose section 1121, and the dish is bent be responsible for nose section 1111 and get into different positions respectively and carry out the drainage, not only plays the effect of the drainage simultaneously of the many steric hindrance stalks of biliary tract, still reduces discomfort and the operation degree of difficulty that many drainage tubes of patient's needs were put into, can be used for treating the biliary tract that different reasons lead to and hinder jaundice, especially complicated biliary tract and hinder, consequently has fabulous application prospect.

Because the double-cavity drainage tube 100 has the effect of simultaneously draining a plurality of steric hindrance peduncles, iodine-125 particle strips, bile and the like can be introduced and matched with the side holes 113 to increase the use function of the double-cavity drainage tube, wherein the iodine-125 particle strips have good clinical curative effect on malignant obstructive jaundice by short-range radiotherapy combined with drainage/support, and the risk of separation and displacement is avoided compared with the prior art that the iodine-125 particle strips are directly released in the biliary tract; compared with the single-cavity pipeline in the prior art, the drainage effect is achieved while the short-range radiotherapy effect is achieved, but the drainage effect is insufficient due to the fact that the drainage effect is achieved while the multi-part peduncle blocking effect is lacked. The dual-cavity drainage tube 100 is used for bile drainage, so that the painful experience of the bile at the mouth of a patient can be avoided, the bile absorption and utilization of the patient can be increased, and the nutritional status and the immunity can be improved.

As shown in fig. 4 and 5, the main pipe 111 and the sub pipe 112 have a semicircular cross section, so that the pipe assembly 100 composed of the main pipe 111 and the sub pipe 112 has a circular cross section. Guarantee like this under the only condition of one of pipe assembly 100, possess the characteristic of two-chamber, avoid pipe assembly 100 increases in quantity and influences the comfort, can promote drainage effect simultaneously.

It should be noted that only main tube end section 1112 and secondary tube end section 1122 are adjacent and form tube assembly 100 of circular cross-section, and main tube head section 1111 and secondary tube head section 1121 are separated and non-bonded to achieve different site drainage.

With continued reference to FIG. 5, the cross-sectional area of the primary tube 111 is no less than the cross-sectional area of the secondary tube 112, for example, 4-6 Fr for the primary tube 111 and 4Fr for the secondary tube 112.

Referring to fig. 1 and 2, the length of the main pipe head section 1111 is longer than that of the secondary pipe head section 1121, the length of the main pipe head section 1111 is 8cm, and the length of the secondary pipe head section 1121 is 6cm, but not limited thereto, and the length and thickness of the main pipe 111 and the secondary pipe 112 may be selected according to design requirements.

With continued reference to fig. 2, the secondary tube head portion 1121 is bent upward, and the primary tube head portion 1111 is coiled in a pigtail shape to meet the drainage requirements of different locations. Wherein the lengths of the main tube tail section 1112 and the secondary tube tail section 1122 may be identical, but both longer than the lengths of the main tube head section 1111 and the secondary tube head section 1121.

As shown in fig. 4, the side holes 113 of the main tube head section 1111 are spaced along the length direction thereof and are arranged in a staggered manner, that is, two adjacent side holes 113 are located at different angular directions of the main tube 111, so that drainage and treatment effects can be improved. Similarly, the side holes 113 of the secondary tube head 1121 are spaced along the length direction thereof and are staggered.

Preferably, the main pipe head section 1111 and the auxiliary pipe head section 1121 are respectively provided with a marking line for punching, wherein the marking line is aligned with the arrangement direction of the side holes 113 so as to facilitate the punching operation.

Besides the characteristic of realizing double-cavity multi-position drainage of the main pipe 111 and the auxiliary pipe 112, the main pipe 111 and the auxiliary pipe 112 are also made of materials with moderate hardness, and have the characteristics of compression resistance, bending resistance and the like. And the inner walls of the main tube 111 and the auxiliary tube 112 are provided with hydrophilic coatings, so that the possibility of blocking the drainage tube by pollutants is reduced.

As shown in fig. 1 and 2, the double lumen drainage tube 100 further comprises:

and the pipe body 150 is sleeved outside the main pipe tail section 1112 and the auxiliary pipe tail section 1122 respectively. It can be seen that the main tube tail section 1112 and the auxiliary tube tail section 1122 are retained inside the tube body 150, so that the main tube tail section 1112 and the auxiliary tube tail section 1122 are spliced side by side to form the tube assembly 110 with a circular cross section, thereby ensuring that the tube assembly can be placed in a single state in the bile duct and split by the separated auxiliary tube head section 1121 and the main tube head section 1111.

To further illustrate, the main tube tail section 1112 and secondary tube tail section 1122 are separate and non-adhesive, and are only abutted side-by-side by the tube 150, while the secondary tube head section 1121 and the main tube head section 1111 are not constrained by the tube 150, and thus are capable of separation.

As shown in fig. 1 to 3, the double lumen drainage tube 100 further comprises:

a junction member 130;

a connection pipe 140, the number of the connection pipe 140 being at least one, and the connection pipe 140 connecting the tail portions of the main pipe 111 and the sub pipe 112 through the junction 130.

The main tube 111, the sub-tube 112 and the junction 130 may be integrally formed, and the connection tube 140 may be inserted into the junction 130 to introduce media such as a particle bar and bile into the main tube 111 and the sub-tube 112. Of course, the former three parts can be formed integrally.

In one embodiment, the main pipe 111 and the secondary pipe 112 are independent and not communicated with each other, and the number of the connecting pipes 140 is two, that is, one connecting pipe 140 corresponds to each of the main pipe 111 and the secondary pipe 112, and a medium is introduced into the main pipe 111 or the secondary pipe 112 through the corresponding connecting pipe 140. Referring to fig. 1, two of the connection pipes 140 are arranged in a V shape.

In another embodiment, the tail portion of the main pipe 111 and the tail portion of the sub pipe 112 communicate with each other through a passage, which may be located in the junction 130, in which case the number of the connection pipes 140 may be one, and a medium can be introduced into the main pipe 111 and the sub pipe 112 through the connection pipes 140, respectively.

As shown in fig. 1 to 3, the double lumen drainage tube 100 further comprises:

a pulling assembly 120, said pulling assembly 120 connected to said main tube 111 to adjust the twist angle of said main tube head section 1111.

Specifically, the pulling assembly 120 includes:

the fixing piece 121, the fixing piece 121 is arranged at the tail of the main pipe 111;

and one end of the traction wire 122 is fixed to the tail of the main tube 111, and the other end of the traction wire 122 is led into the main tube 111 from the tail of the main tube 111, penetrates out of the head of the main tube 111, penetrates back into the main tube 111 in a manner of being far away from the head of the main tube 111, and penetrates out of the tail of the main tube 111 to be connected with the fixing piece 121.

More specifically, the fixing element 121 may be annular and is sleeved outside the tube body 150, the fixing element 121 is located at a side of the converging element 130 away from the connecting tube 140, wherein the converging element 130 is provided with a converging element channel 131 through which the pulling wire 122 passes, and the fixing element 121 is transversely provided with a fixing element channel 1211 through which the pulling wire 122 passes. Thus, the pull wire 122 exiting the tail of the main tube 111 passes through the converging member passage 131 and then through the anchor passage 1211, and the pull wire 122 passing through the anchor passage 1211 is pulled to change and fix the angle of the coil of the main tube head section 1111.

In summary, the main tube tail section 1112 and the auxiliary tube tail section 1122 are abutted side by side, so that the main tube 111 and the auxiliary tube 112 form the double-lumen drainage tube 100, and the bent auxiliary tube head section 1121 and the twisted main tube head section 1111 are respectively introduced into different positions for drainage, thereby not only achieving the effect of simultaneously draining multiple steric hindrance stems of the biliary tract, providing good drainage for complex obstruction, but also reducing discomfort and operation difficulty of patients requiring multiple drainage tubes to be placed, providing internal treatment particle placement for the obstruction position and bile introduction requirements, realizing short-range radiotherapy, and improving the utilization rate of bile of the patients.

As shown in fig. 1 to 6, the drainage assembly includes the dual-chamber drainage tube 100 of the above embodiment, and further includes:

a tearable sheath 200, wherein the tearable sheath 200 comprises two tearable members 210, and the two tearable members 210 are spliced together to form a pin detachment cavity 220 for accommodating the dual-lumen drainage tube 110.

Since the drainage assembly adopts the dual-lumen drainage tube 100 of the above embodiment, the drainage assembly refers to the above embodiment for the advantageous effects brought by the dual-lumen drainage tube 100.

Specifically, the detachment cavity 220 penetrates through the tail and the head of the tearable sheath 200 along the length direction of the tearable sheath 200, so that the dual-cavity drainage tube 100 is introduced from the tail of the tearable sheath 200 into the detachment cavity 220, and the secondary tube head section 1121, and the primary tube head section 1111 are passed out from the head of the tearable sheath 200. The two tearable members 210 are symmetrically spliced and the splicing place is a tearable indentation, and the tearing of the two tearable members 210 along the indentation can make the tearable sheath 200 be removed relative to the dual-chamber drainage tube 100 to keep the dual-chamber drainage tube 100 at the obstruction.

As shown in fig. 6, the tear-off member 210 includes a tear-off portion 211, and a wing portion 212 provided on the tear-off portion 211. Wherein the wing portion 212 is located at the tail of the tearable portion 211, when the tearable sheath 200 is used, the tail of the tearable portion 211 is positioned outside the skin of the patient, so the wing portion 212 located at the tearable portion 211 provides a point of application for the tearing operation, so as to facilitate the tearing separation of the two tearable members 210.

The use method of the drainage assembly will be described below by taking the main trunk and the left branch of the common bile duct as an example:

first, the right lobe of the liver is punctured under ultrasound, CT, etc. guidance to dilate the bile duct, and a 0.035in guidewire is introduced and exchanged with the puncture needle, referring to fig. 7 to 9.

In a second step, the tearable sheath 200 is introduced into the bile duct with the support of the 0.035in guidewire, then the sheath core inside the cotter lumen 220 of the tearable sheath 200 is removed and the dual lumen drainage tube 100 is introduced into the cotter lumen 220, refer to fig. 10 and 11.

Thirdly, the peelable sheath 200 is peeled off while being withdrawn, and then a double-guide wire is introduced to ensure that the double-cavity drainage tube 100 is not separated from the biliary tract, referring to fig. 12.

Fourthly, the double-lumen drainage tube 100 is guided by a guide wire to make the secondary tube head portion 1121 and the main tube head portion 1111 of the double-lumen drainage tube 100 enter different positions respectively for local drainage, and after confirming the position by radiography, the main tube head portion 1111 is fixed by pulling the traction wire 122, referring to fig. 13.

Fig. 14 is a schematic view of dual-lumen drainage tube 100 in place, where secondary tube head section 1121 and primary tube head section 1111 can simultaneously drain the main trunk and bile blocking the left branch, and implant radiotherapeutic particles.

The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention is not limited by the embodiments, i.e. all equivalent changes or modifications made in the spirit of the present invention are still within the scope of the present invention.

Claims

1. A dual lumen drainage tube (100) comprising a tube assembly (110), said tube assembly (110) comprising:

a main tube (111), the main tube (111) comprising a main tube head section (1111) and a main tube tail section (1112) connected together;

the auxiliary pipe (112) comprises an auxiliary pipe head section (1121) and an auxiliary pipe tail section (1122) which are connected, the main pipe tail section (1112) and the auxiliary pipe tail section (1122) are abutted side by side, the main pipe head section (1111) is coiled in a mode of separating the auxiliary pipe (112), the auxiliary pipe head section (1121) is bent in a mode of separating the main pipe (111), and a plurality of side holes (113) are formed in the main pipe head section (1111) and the auxiliary pipe head section (1121) respectively.

2. The dual lumen drainage tube (100) of claim 1 further comprising a pulling assembly (120), the pulling assembly (120) comprising:

the fixing piece (121), the said fixing piece (121) is set up in the said main pipe (111) afterbody;

the traction wire (122), one end of the traction wire (122) is fixed in the tail of the main pipe (111), and the other end of the traction wire is led into the main pipe (111) from the tail of the main pipe (111), penetrates out from the head of the main pipe (111), penetrates back into the main pipe (111) in a mode of keeping away from the head of the main pipe (111), and penetrates out from the tail of the main pipe (111) to be connected with the fixing piece (121).

3. The dual lumen drainage tube (100) of claim 2, further comprising:

a junction (130);

a connection pipe (140), the number of the connection pipe (140) being at least one, and the connection pipe (140) connecting the main pipe (111) and the tail of the sub pipe (112) through the junction piece (130).

4. The double lumen drainage tube (100) of claim 3, wherein the fastener (121) is located on a side of the junction element (130) facing away from the connection tube (140), and the junction element (130) is provided with a junction element channel (131) through which the pull wire (122) passes, and the fastener (121) is provided with a fastener channel (1211) through which the pull wire (122) passes.

5. The dual lumen drainage tube (100) of claim 1 wherein said main tube head section (1111) and said secondary tube head section (1121) are provided with marking lines for perforation, respectively.

6. The dual lumen drain (100) of claim 1 further comprising:

and the pipe body (150) is sleeved outside the main pipe tail section (1112) and the auxiliary pipe tail section (1122) respectively.

7. The dual chamber draft tube (100) according to claim 1, wherein the tail of said main tube (111) communicates with the tail of said secondary tube (112).

8. The dual lumen drainage tube (100) of claim 1 wherein the inner walls of the primary tube (111) and the secondary tube (112) are provided with a hydrophilic coating.

9. A drainage assembly comprising a dual-lumen drainage tube (100) according to any of claims 1 to 8, the drainage assembly further comprising:

a tearable sheath (200), the tearable sheath (200) comprising two tearable pieces (210), the two tearable pieces (210) being pieced together to form a split pin chamber (220) accommodating the dual-lumen drainage tube (110).

10. The drainage assembly of claim 9, wherein the tear-away piece (210) comprises a tear-away portion (211), and a wing portion (212) disposed on the tear-away portion (211).