CN111282132A - Biliary tract drainage tube based on radioactive particle therapy - Google Patents

Biliary tract drainage tube based on radioactive particle therapy Download PDF

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Publication number
CN111282132A
CN111282132A CN202010136809.2A CN202010136809A CN111282132A CN 111282132 A CN111282132 A CN 111282132A CN 202010136809 A CN202010136809 A CN 202010136809A CN 111282132 A CN111282132 A CN 111282132A
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CN
China
Prior art keywords
main pipe
drainage
sac
bag
drainage main
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Pending
Application number
CN202010136809.2A
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Chinese (zh)
Inventor
张辉
牟玮
高万春
黄学全
杜松
陈尚雄
范立琳
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First Affiliated Hospital of PLA Military Medical University
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Individual
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Priority to CN202010136809.2A priority Critical patent/CN111282132A/en
Publication of CN111282132A publication Critical patent/CN111282132A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1007—Arrangements or means for the introduction of sources into the body
    • 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
    • A61M25/0067—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
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1002—Intraluminal radiation therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092—Details

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention discloses a biliary tract drainage tube based on radioactive particle treatment, which relates to the technical field of medical instruments and solves the problems of complicated treatment process, overlong period, great pain of patients and the like of the conventional biliary tract drainage tube, and the key points of the technical scheme are as follows: comprises a drainage main pipe and two pigtail pipes, wherein side holes are arranged on the outer wall of the pigtail pipes in a penetrating way; a sac cavity is arranged in the wall of the drainage main pipe and extends along the axial direction of the drainage main pipe; the capsule cavity is provided with a capsule bag, and radioactive particles I are placed in the capsule bag125(ii) a The bag is provided with at least one separation section along the axial direction of the drainage main pipe, the separation section is formed by mutually bonding the symmetrical inner walls of the bag, and the separation section divides the interior of the bag into a plurality of placing cavities; the outer wall of the drainage main pipe is provided with an air pressure port, the air pressure port is communicated with the placing cavity at the end part of the sac through an air pipe, and the drainage main pipe has the advantages of timely drainage, obstruction removal and internal radiation treatment of tumors, simple treatment process operation, treatment period shortening, patient pain alleviation, improvement of PTCD technologyThe therapeutic effect of the operation.

Description

Biliary tract drainage tube based on radioactive particle therapy
Technical Field
The invention relates to the technical field of medical instruments, in particular to a biliary tract drainage tube based on radioactive particle treatment.
Background
Percutaneous transhepatic puncture biliary drainage, abbreviated as PTCD, is a technical means for placing a catheter in a biliary tract through the skin and the liver under the imaging technology.
Currently, PTCD can drain bile by means of internal and external drainage. For patients with malignant obstructive jaundice, the guide wire is not easy to pass through stenosis during the operation, and a simple external drainage mode is common. The drainage in can realizing through the stenosis many side openings pipe distal end, this kind of mode is similar physiologic bile drainage, compares in external drainage bile loss still less, and is less to intestinal function influence, is chooseed more. The internal drainage can also be realized by placing a stent through a PTCD tube and passing through a narrow section, and the PTCD tube is an important palliative treatment method for treating biliary malignant tumor. In addition, the PTCD postoperative implantation of the I particles through a catheter for further radiotherapy also has certain clinical curative effect.
However, in the bile drainage process, tumor growth is one of common pipeline blockage reasons, and the existing biliary drainage tube drainage can only relieve tumor blockage but cannot fundamentally control tumors; after the drainage is finished, the I particles are implanted for further radiotherapy, so that the treatment process is complicated, the treatment period is too long, and great pain is brought to a patient; in addition, the implantation position and implantation amount control of the I-particles are also a great problem in radiotherapy in the I-particle implantation treatment process. Therefore, how to design a biliary tract drainage tube based on radioactive particle therapy is a technical problem which is urgently needed to be solved at present. Provides basic conditions for the comprehensive popularization of the PTCD technology.
Disclosure of Invention
The invention aims to provide a biliary tract drainage tube based on radioactive particle therapy, which has the functions of timely draining to remove obstruction and internally radiating to treat tumors, so that the treatment process is simple to operate, the treatment period is shortened, the pain of a patient is relieved, and the treatment effect of the PTCD technology is improved.
The technical purpose of the invention is realized by the following technical scheme: the biliary tract drainage tube based on radioactive particle treatment comprises a drainage main tube and two pigtail tubes symmetrically arranged at two ends of the drainage main tube, wherein side holes are arranged on the outer wall of the pigtail tubes in a penetrating manner; a sac cavity is arranged in the wall of the drainage main pipe and extends along the axial direction of the drainage main pipe; the capsule cavity is internally provided with a capsule bag, and radioactive particles I are placed in the capsule bag125(ii) a The bag is provided with at least one separation section along the axial direction of the drainage main pipe, the separation section is formed by mutually bonding the symmetrical inner walls of the bag, and the separation section divides the interior of the bag into a plurality of placing cavities; the outer wall of the drainage main pipe is provided with an air pressure port which is communicated with the placing cavity at the end part of the bag through an air pipe.
By adopting the technical scheme, bile enters the drainage main pipe from the side hole on the pigtail pipe on one side and then flows out from the side hole on the pigtail pipe on the other side, so that bile drainage at two ends of tumor obstruction is realized; in the process of implantation treatment of biliary tract drainage tube, firstly, the radioactive particles I are implanted125Is sent into a placing cavity close to the air pipe through the air pressure port and the air pipe; then, the drainage tube is implanted into the biliary tract, so that the sac is positioned at the position where the tumor is obstructed; then the air pressure port is inflated, when the air pressure value in the placing cavity reaches the bearing limit of the separation joint, the separation joint is opened, and the radioactive particles I in the placing cavity125Under the action of air flow, the radioactive particles I enter the next placing cavity to be accurately adjusted125The placement position of (a); the device can drain in time to relieve obstruction, and can internally radiate to treat tumors, control the growth of the tumors and reduce the blocking of a drainage tube in the bile drainage process, so that the operation of the treatment process is simple, the treatment period is shortened, the pain of a patient is relieved, and the treatment effect of the PTCD technology is improved.
The invention is further configured to: two concave V-shaped elastic bodies are symmetrically arranged between the adjacent placing cavities, and the tips of the two V-shaped elastic bodies which are close to each other are mutually bonded.
Through adopting above-mentioned technical scheme, utilize V type elastomer, when the cavity is placed to both sides and is deposited and have certain atmospheric pressure after the partition node is opened, V type elastomer resumes to V type state under self elasticity effect, and the most advanced conflict of two V type elastomers can restrict radioactive particle I125The circulation in the adjacent cavities occurs, and the radioactive particles I are enhanced125Stability of the treatment.
The invention is further configured to: the air pressure port comprises a rigid outer ring and an elastic sealing layer arranged in the rigid outer ring, and the center of the elastic sealing layer is provided with a jack in a penetrating mode.
By adopting the technical scheme, the elastic sealing layer is extruded from the jack, so that the aperture of the jack is increased after the jack is expanded outwards, and the radioactive particles I for the delivery person125The operation of inflating the placing cavity is convenient; after the operation is finished, the jack is restored to a sealing state under the action of the elastic force of the elastic sealing layer, and gas in the inflation cavity is prevented from flowing backwards.
The invention is further configured to: the length of the sac along the axial direction of the drainage main pipe is 10-30 mm.
By adopting the technical scheme, the application range of the biliary tract drainage tube is convenient to enhance.
The invention is further configured to: the length of each placing cavity along the axial direction of the main drainage tube is 5-10 mm.
By adopting the technical scheme, the radioactive particles I are convenient to enhance125The adjustment accuracy of (2).
The invention is further configured to: the sac is flat or arc-shaped and is distributed along the circumferential direction of the drainage main pipe.
By adopting the technical scheme, the occurrence of gaps at the closed positions of the separation joints is reduced.
In conclusion, the invention has the following beneficial effects: the obstruction can be removed by timely drainage, and the tumor can be treated by internal radiation, so that the growth of the tumor is controlled and the blocking of a drainage tube is reduced in the bile drainage process, the operation of the treatment process is simple, the treatment period is shortened, the pain of a patient is relieved, and the treatment effect of the PTCD technology is improved; using V-shaped elastomersWhen the two side placing cavities are stored with certain air pressure after the separation joint is opened, the V-shaped elastic bodies are restored to the V-shaped state under the action of self elasticity, and the tips of the two V-shaped elastic bodies are abutted to limit the radioactive particles I125The circulation in the adjacent cavities occurs, and the radioactive particles I are enhanced125Stability of the treatment; after the operation is finished, the jack is restored to a sealing state under the action of the elastic force of the elastic sealing layer, and gas in the inflation cavity is prevented from flowing backwards.
Drawings
FIG. 1 is a schematic view of the overall structure in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a main drainage tube in an embodiment of the present invention;
FIG. 3 is a schematic view of FIG. 1 taken along line A;
FIG. 4 is a schematic view of a bladder in an embodiment of the present invention;
fig. 5 is a schematic structural view of the air pressure port in the embodiment of the present invention.
In the figure: 1. a drainage main pipe; 11. pigtail tube; 12. a side hole; 13. an inner cavity; 2. a capsule cavity; 21. a pouch; 22. radioactive particle I125(ii) a 23. A separation section; 231. a V-type elastomer; 24. a placement chamber; 25. an air tube; 26. an air pressure port; 27. a rigid outer ring; 28. an elastomeric sealing layer; 29. and (4) inserting the jack.
Detailed Description
The present invention is described in further detail below with reference to figures 1-5.
Example (b): a biliary tract drainage tube based on radioactive particle treatment is shown in figure 1 and comprises a drainage main tube 1 and two pigtail tubes 11 symmetrically arranged at two ends of the drainage main tube 1, wherein an inner cavity 13 for bile to flow through is arranged in the drainage main tube 1. A side hole 12 is arranged on the outer wall of the pigtail 11. Bile enters the drainage main pipe 1 from the side hole 12 on the pigtail pipe 11 at one side and then flows out from the side hole 12 on the pigtail pipe 11 at the other side, so that bile drainage at two ends of tumor obstruction is realized.
As shown in fig. 2 and 4, a sac 2 is arranged in the wall of the main drainage tube 1, and the sac 2 extends along the axial direction of the main drainage tube 1. A sac 21 is arranged in the sac cavity 2, and radioactive particles 22 are arranged in the sac 21. The sac 21 is provided with at least one separation section 23 along the axial direction of the drainage main pipe 1, the separation section 23 is formed by mutually bonding the symmetrical inner walls of the sac 21, and the separation section 23 divides the inside of the sac 21 into a plurality of placing cavities 24. In this embodiment, the bladder 21 is provided with three dividing segments 23. The outer wall of the main drainage tube 1 is provided with an air pressure port 26 (refer to fig. 3), and the air pressure port 26 is communicated with the placing cavity 24 at the end part of the sac 21 through an air tube 25. In the biliary tract drainage tube implantation treatment process, firstly, the radioactive seeds 22 are sent into the placing cavity 24 close to the trachea 25 through the air pressure port 26 and the trachea 25, and the implantation amount and the path of the radioactive seeds 22 are regulated and controlled according to the TIPS radiotherapy plan. The drainage tube is then implanted into the biliary tract, with the capsular bag 21 located at the site of tumor obstruction. Then, the air pressure port 26 is inflated, when the air pressure value in the placing cavity 24 reaches the bearing limit of the partition 23, the partition 23 is opened, the radioactive particles 22 in the placing cavity 24 enter the next placing cavity 24 under the action of the air flow, and the placing position of the radioactive particles 22 is accurately adjusted. The device can drain in time to relieve obstruction, and can internally radiate to treat tumors, control the growth of the tumors and reduce the blocking of a drainage tube in the bile drainage process, so that the operation of the treatment process is simple, the treatment period is shortened, the pain of a patient is relieved, and the treatment effect of the PTCD technology is improved.
As shown in fig. 4, two concave V-shaped elastic bodies 231 are symmetrically disposed between the adjacent placement cavities 24, and tips of the two V-shaped elastic bodies 231, which are close to each other, are adhered to each other. By utilizing the V-shaped elastic body 231, when the two side placing cavities 24 are stored with certain air pressure after the separation joint 23 is opened, the V-shaped elastic body 231 is restored to the V-shaped state under the action of the self elastic force, the tips of the two V-shaped elastic bodies 231 are abutted to limit the circulation of the radioactive particles 22 in the adjacent placing cavities 24, and the treatment stability of the radioactive particles 22 is enhanced.
As shown in fig. 4 and 5, the air pressure port 26 includes a rigid outer ring 27 and an elastic sealing layer 28 disposed inside the rigid outer ring 27, and an insertion hole 29 is formed through the elastic sealing layer 28 at the center thereof. The elastic sealing layer 28 is extruded from the insertion hole 29, so that the diameter of the insertion hole 29 is increased after the insertion hole 29 is expanded outwards, and the operation of inflating the human-sending radioactive particles 22 and the placing cavity 24 is convenient. After the operation is completed, the insertion hole 29 is restored to the sealing state by the elastic force of the elastic sealing layer 28, and the gas in the inflation chamber is prevented from flowing backwards.
As shown in fig. 4, the length of the pouch 21 in the axial direction of the drainage main tube 1 is 10 to 30 mm. In this embodiment, the length of the bag 21 is 28mm, which is convenient for enhancing the application range of the biliary tract drainage tube.
As shown in fig. 4, the length of each placement cavity 24 along the axial direction of the drainage main pipe 1 is 5-10 mm. In the present embodiment, each placement chamber 24 has a length of 7mm, which facilitates enhancement of the accuracy of adjustment of the radioactive particles 22.
As shown in fig. 2, the pouch 21 is flat or arc-shaped and is distributed along the circumferential direction of the drainage main tube 1. In this embodiment, the pouch 21 is arcuate in shape to reduce the occurrence of gaps at the closure of the segments 23.
The working process is as follows: in the process of implantation treatment of the biliary tract drainage tube, the radioactive particles 22 are firstly sent into the placing cavity 24 close to the trachea 25 through the air pressure port 26 and the trachea 25. The drainage tube is then implanted into the biliary tract, with the capsular bag 21 located at the site of tumor obstruction. Then, the air pressure port 26 is inflated, when the air pressure value in the placing cavity 24 reaches the bearing limit of the partition 23, the partition 23 is opened, the radioactive particles 22 in the placing cavity 24 enter the next placing cavity 24 under the action of the air flow, and the placing position of the radioactive particles 22 is accurately adjusted. The device can drain in time to relieve obstruction, and can internally radiate to treat tumors, control the growth of the tumors and reduce the blocking of a drainage tube in the bile drainage process, so that the operation of the treatment process is simple, the treatment period is shortened, the pain of a patient is relieved, and the treatment effect of the PTCD technology is improved.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (6)

1. Biliary tract drainage tube based on radioactive particle therapy, which is characterized in that: comprises a drainage main pipe (1) and two pigtails (11) symmetrically arranged at two ends of the drainage main pipe (1), wherein side holes (12) are arranged on the outer wall of the pigtails (11) in a penetrating way; a sac cavity (2) is arranged in the wall of the drainage main pipe (1), and the sac cavity (2) extends along the axial direction of the drainage main pipe (1); a sac bag (21) is arranged in the sac cavity (2), and radioactive particles (22) are placed in the sac bag (21); the bag (21) is provided with at least one separation section (23) along the axial direction of the drainage main pipe (1), the separation section (23) is formed by mutually bonding the symmetrical inner walls of the bag (21), and the separation section (23) divides the interior of the bag (21) into a plurality of placing cavities (24); the outer wall of the drainage main pipe (1) is provided with an air pressure port (26), and the air pressure port (26) is communicated with the placing cavity (24) at the end part of the sac (21) through an air pipe (25).
2. The biliary drainage tube based on radioactive particle therapy according to claim 1, wherein: two concave V-shaped elastic bodies (231) are symmetrically arranged between the adjacent placing cavities (24), and the tips of the two V-shaped elastic bodies (231) which are close to each other are bonded with each other.
3. The biliary drainage tube based on radioactive particle therapy according to claim 1, wherein: the air pressure port (26) comprises a rigid outer ring (27) and an elastic sealing layer (28) arranged in the rigid outer ring (27), and an insertion hole (29) is formed in the center of the elastic sealing layer (28) in a penetrating mode.
4. The biliary drainage tube based on radioactive particle therapy according to claim 1, wherein: the length of the sac (21) along the axial direction of the drainage main pipe (1) is 10-30 mm.
5. The biliary drainage tube based on radioactive particle therapy according to claim 1, wherein: the length of each placing cavity (24) along the axial direction of the drainage main pipe (1) is 5-10 mm.
6. The biliary drainage tube based on radioactive particle therapy according to any one of claims 1 to 5, wherein: the sac (21) is flat or arc-shaped and is distributed along the circumferential direction of the drainage main pipe (1).
CN202010136809.2A 2020-03-02 2020-03-02 Biliary tract drainage tube based on radioactive particle therapy Pending CN111282132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010136809.2A CN111282132A (en) 2020-03-02 2020-03-02 Biliary tract drainage tube based on radioactive particle therapy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010136809.2A CN111282132A (en) 2020-03-02 2020-03-02 Biliary tract drainage tube based on radioactive particle therapy

Publications (1)

Publication Number Publication Date
CN111282132A true CN111282132A (en) 2020-06-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010136809.2A Pending CN111282132A (en) 2020-03-02 2020-03-02 Biliary tract drainage tube based on radioactive particle therapy

Country Status (1)

Country Link
CN (1) CN111282132A (en)

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Effective date of registration: 20200708

Address after: Chongqing city Shapingba street 400030 gaotanyan No. 30

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Applicant before: Zhang Hui