CN114767983B - Tunnel flushing disinfection catheter for dialysis and use method thereof - Google Patents

Tunnel flushing disinfection catheter for dialysis and use method thereof Download PDF

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Publication number
CN114767983B
CN114767983B CN202210638210.8A CN202210638210A CN114767983B CN 114767983 B CN114767983 B CN 114767983B CN 202210638210 A CN202210638210 A CN 202210638210A CN 114767983 B CN114767983 B CN 114767983B
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tunnel
catheter
conduit
dialysis
flushing
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CN114767983A (en
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张柯
刘妍
吴琼英
李敏
张�浩
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Third Xiangya Hospital of Central South University
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Third Xiangya Hospital of Central South University
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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
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • 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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/008—Strength or flexibility characteristics of the catheter tip
    • 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
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0233—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs
    • A61M3/0254—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped
    • A61M3/0262—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped manually, e.g. by squeezing a bulb
    • 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
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0279—Cannula; Nozzles; Tips; their connection means
    • 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
    • A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of 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
    • A61M2025/0057—Catheters delivering medicament other than through a conventional lumen, e.g. porous walls or hydrogel coatings
    • 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
    • A61M2025/006—Catheters; Hollow probes characterised by structural features having a special surface topography or special surface properties, e.g. roughened or knurled surface
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/0007—Special media to be introduced, removed or treated introduced 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0468—Liquids non-physiological
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/10—Trunk
    • A61M2210/1017—Peritoneal cavity

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
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  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Urology & Nephrology (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Vascular Medicine (AREA)
  • External Artificial Organs (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

A tunnel flushing disinfection conduit for dialysis and a use method thereof, wherein the conduit is provided with an inclined opening at one end of the conduit inserted into a tunnel portal to form a tip main hole; the guide pipe is provided with a plurality of side holes on a section of pipe body extending into the target position of the tunnel; the hardness of the end head is greater than that of the pipe body; the catheter is provided with a joint for connecting an aspirator. The invention also includes another tunnel-type flushing disinfection catheter for dialysis and a use method thereof. On one hand, the invention can extend the catheter into the deep part of the tunnel, effectively detect the tunnel inflammation part, perform timely flushing, disinfection and antibiosis, and effectively treat the deep tunnel inflammation or granulation in time; on the other hand, two different modes of treatment of flushing and smearing can be realized; and the injection speed is moderate, so that the problem that the infection focus falls off and adheres to other parts of the tunnel due to rapid flushing is avoided.

Description

Tunnel flushing disinfection catheter for dialysis and use method thereof
Technical Field
The invention relates to the technical field of medical instruments, in particular to a tunnel flushing disinfection catheter for dialysis and a use method thereof.
Background
Chronic kidney disease (chronic kidney disease, CKD) has a global prevalence of 11-13% and most patients enter end-stage renal disease (end-stage renal disease, ESRD). Peritoneal dialysis is an important treatment means of ESRD, and compared with hemodialysis, peritoneal dialysis has the advantages of small influence of hemodynamics, home operation and the like, has low medical cost and flexible treatment time, lightens economic burden for the country and society, is greatly supported by the country and government, and is rapid in development. With the increase of peritoneal dialysis patients and the improvement of the management level of each peritoneal dialysis center, the life span of the patients with the tube, the dialysis age and the life quality are all improved. However, along with the extension of the time of the tube, besides acute complications such as peritonitis, chronic complications such as malnutrition and peritoneal dialysis tunnel infection are more and more generated, wherein the peritoneal dialysis tunnel infection is particularly common, serious patients can cause tunnel granulation, peritonitis and the like, and even the peritoneal dialysis tube is required to be removed. Because patients have delay in treatment of tunnel inflammation caused by factors such as insufficient dialysis knowledge, difficulty in household dressing change and the like, and the tunnel through which the peritoneal dialysis catheter is arranged is long, treatment means for deep tunnel inflammation or granulation are limited, such as incision drainage, the risk of silicone-damaged peritoneal dialysis catheter arrangement is high, and the problems that tunnel cleaning and disinfection are limited, antibacterial drugs cannot reach tunnel inflammation and the like cannot be solved in tunnel portal dressing change and the like are solved, so that effective treatment is lacking.
CN 214911360U discloses a flushing device for hemodialysis long-term catheter subcutaneous tunnel infection, comprising a puncture assembly, an infusion assembly and a drainage assembly, wherein the infusion assembly and the drainage assembly are respectively communicated with the puncture assembly; the puncture assembly comprises a puncture needle, an extension hose is nested in the puncture needle in a sliding manner, and a plurality of liquid holes are formed in the side wall of the extension hose in a penetrating manner. The working principle is as follows: firstly, a syringe filled with normal saline is communicated with a liquid inlet pipe through a mounting joint, then a liquid valve is closed, and then the normal saline is input into a subcutaneous tunnel through the liquid inlet pipe, a three-way joint, a liquid guide pipe, a puncture needle and an extension hose by using the syringe for flushing. This approach, while enabling flushing, still has the following drawbacks: (1) The structure is complex, and the puncture needle is required to be sleeved outside the hose and is connected with the hose in a sliding way; and during operation, the puncture needle is required to be inserted into the subcutaneous tunnel, then the extension hose is pushed to slide in the puncture needle and extend out of the puncture needle, so that the extension hose further extends into the subcutaneous tunnel, and then sufficient physiological saline is input into the subcutaneous tunnel through the infusion assembly, so that the physiological saline can flow out of a plurality of liquid holes of the hose. Therefore, the puncture needle only plays a role of facilitating medical staff to insert the hose into the subcutaneous tunnel, physiological saline cannot flow out of the puncture needle, and the hose must be removed, so that on one hand, the operation is complicated, on the other hand, the patent only sets a plurality of liquid holes on the side surface of the hose, the flushing medicine cannot be guaranteed to penetrate into the deepest part of the tunnel, flushing with a larger effective area cannot be guaranteed, and under the action of the pushing speed of the injector, even if the liquid holes are formed in the hose, larger pressure is easily generated locally, so that the risk of flushing or bacterial shedding of local inflammation parts is increased; (2) This prior art can only realize disinfection washing to can not realize the problem that tunnel portal changed dressings.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the tunnel flushing disinfection catheter for dialysis and the use method thereof, which have the advantages of simple structure, simple and convenient operation and obvious effect, can detect the tunnel inflammation depth, can effectively reach the tunnel inflammation part by using external medicines, and effectively solve the problems that the tunnel cleaning and disinfection are limited and the antibacterial medicines cannot reach the tunnel inflammation part by adopting two different modes of flushing and smearing.
The technical scheme of the invention is as follows:
the invention relates to a tunnel flushing disinfection catheter for dialysis, which is characterized in that an inclined port is arranged at one end of the catheter inserted into a tunnel portal to form a tip main hole; the section of the pipe body extending into the target position of the tunnel is provided with a plurality of side holes; the hardness of the end head is greater than that of the pipe body; the catheter is provided with a joint for connecting an aspirator.
Further, the inclination angle of the tip main hole is 30-45 degrees.
Further, the outer surface of the side hole is covered with an elastic film, and the elastic film is positioned right above the side hole and has a width which is half of that of the side hole; the other position of the conduit is a hose. Covering the elastic membrane on the outer surface of the side hole has three advantages, namely, the elastic membrane can not hurt the body when in use, the elastic membrane can divide the fluid flowing out from one hole into two parts and aim at different directions, so that the cleaning is more comprehensive, and the elastic membrane can regulate the speed of the fluid, but the fluid is milder when in injection.
Further, the aperture of the side hole is 1-2 mm.
Further, the catheter is provided with a rough surface for attaching and smearing medicines on the back surface of the tip main hole and the other surface opposite to the side hole.
Further, the rough surface is arranged opposite to the peritoneal dialysis catheter stored in the tunnel.
The tunnel flushing disinfection conduit for dialysis comprises a first conduit and a second conduit, wherein the first conduit is provided with an inclined opening at the end inserted into a tunnel portal to form a tip main hole; the tube body of the first catheter is provided with a plurality of side holes, and the inclined mouth and the side holes are used for conveying liquid medicines in the first catheter to a tunnel target position; the second conduit is provided with a rough surface for adhering and smearing medicines on the end head inserted into the tunnel portal and the pipe body.
Further, the second conduit is also provided with a tip main hole at the end inserted into the tunnel portal, and the tip main hole is arranged at the back of the rough surface.
Further, the first conduit and the second conduit are provided with connectors for connecting an aspirator; or only the first conduit is provided with a joint for connection to an aspirator.
The use method of the tunnel flushing disinfection catheter for dialysis according to any one of the previous claims comprises the following steps:
when the tunnel is required to be flushed, the end head of the catheter with the tip main hole and the side hole is conveyed to the tunnel inflammation position through the tunnel opening, the liquid medicine is filled into the aspirator and communicated with the catheter, the liquid medicine is pushed into the catheter through the aspirator, and the medicine enters the tunnel target position through the tip main hole and the liquid hole under the thrust action of the injector, so that the tunnel is cleaned and disinfected;
when the medicine is needed to be applied, paste or gel medicine is smeared on the rough surface of the catheter with the rough surface, and then the catheter is conveyed to the tunnel inflammation position, so that the medicine is smeared on the tunnel infection position.
The invention has the beneficial effects that:
(1) On one hand, the catheter can be stretched into the deep part of the tunnel, the tunnel inflammation part can be effectively detected, timely flushing, disinfection and antibiosis can be carried out, and a patient can be flushed at home, so that the cleaning efficiency is high, and the deep tunnel inflammation or granulation can be effectively treated in time; on the other hand, two different modes of treatment of flushing (liquid medicine) and smearing (gel or paste) can be realized; the injection speed is moderate, and the problem that the infection stove falls off and adheres to other parts of the tunnel due to rapid flushing is avoided;
(2) On one hand, the flushing and the medicine smearing can be realized by only designing one catheter, and the structure can be simplified and the operation convenience can be improved by arranging two catheters to flush and smear medicine respectively; on the other hand, only the end head of the catheter inserted into the tunnel portal is designed into a structure with high hardness, so that a structure of penetrating needle and hose sliding nesting is not required to be arranged like the prior art, the structure is greatly simplified, and through arranging a tip main hole at the end head of the catheter and matching with a side hole, the tip main hole can better penetrate into the deepest part of the tunnel, so that the tunnel portal is flushed with a larger effective area, and under the condition of the same pushing speed, the locally generated pressure is small, and the risk of local inflammation part scattering or bacterial shedding is reduced; the liquid outflow speed of the main hole at the tip end in unit time can be reduced through the side holes, so that the liquid inflow speed is limited during flushing, and the infection stove can not fall off and be attached to other parts of the tunnel due to rapid flushing.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of embodiment 2 of the present invention;
FIG. 3 is a schematic structural view of embodiment 5 of the present invention;
FIG. 4 is a schematic illustration of the flushing of example 5 of the present invention;
FIG. 5 is a schematic diagram of the application of the drug according to example 5 of the present invention;
fig. 6 is a schematic view of the structure of the side hole and the elastic membrane.
The attached drawings are used for identifying and describing:
1. a conduit; 2. a tip main hole; 3. a side hole; 4. a joint; 5. a rough surface; 6. a syringe; 11. a front end; 12. a hose; 7. a peritoneal dialysis catheter is arranged; 8. an elastic film.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific examples.
Example 1
As shown in fig. 1: a tunnel flushing disinfection conduit for dialysis, wherein a tilting port is arranged at one end (hereinafter referred to as a front end head 11) of the conduit 1 inserted into a tunnel portal, so as to form a tip main hole 2; and the section of pipe body extending into the tunnel is provided with a plurality of side holes 3; the end of the conduit 1 remote from the tunnel opening (hereinafter referred to as the rear end) is provided with a fitting 4 for connection to an injector.
Specifically, the front end 11 of the catheter 1 has a certain hardness, the rest part of the catheter except the front end is a hose 12, the hardness of the front end is greater than that of the hose 12, for example, a plastic head is adopted, so that the catheter can smoothly enter deep into a tunnel, and if the front end 11 is too hard, the soft tissue of the tunnel and the peritoneal dialysis catheter running in the tunnel are easily damaged or scratched; if the front head 11 is too soft, it is not easy to enter deep into the tunnel. The plastic head and the hose are fixed by cementing or are directly integrated into a whole. The plastic head can be a small part of the main hole of the tip, and the design length of the plastic head can be larger, for example, the space occupied by the main hole of the tip and part of the side holes belongs to the plastic head.
In the embodiment, the front end head 11 of the catheter is provided with the tip main hole 2, and the front end head 11 has certain hardness, so that the catheter 1 can be conveniently and smoothly inserted into a tunnel on one hand; on the other hand, the speed of liquid entering the tunnel can be reduced. The tip main hole 2 is preferably at an oblique angle of 30-45 degrees, so that the most tip is thinner and is not sharp, the most tip can better penetrate into the deepest part of the tunnel, the aperture of the tip main hole can be increased, a larger effective area can be achieved when the tunnel entrance is flushed, the locally generated pressure is small under the condition of the same pushing speed, and the risk of local inflammation part scattering or bacterial shedding is reduced. According to the embodiment, the side holes are arranged, so that liquid at the tunnel portal can be dispersed and washed, the outflow speed of the liquid at the main hole at the tip end in unit time is reduced, the entering speed of the liquid is limited during washing, and the infection stove can not fall off and be attached to other parts of the tunnel due to rapid washing. Preferably, the aperture of the side hole is 1-2 mm, so that the flow distribution can be achieved, and the liquid amount for flushing or treatment cannot be excessively wasted. In addition, the side hole can be arranged at the position of the front end head 11 or at the position of the hose; or part of the side holes are arranged at the front end head, and the other part of the liquid holes are arranged at the hose.
In this embodiment, the fitting 4 is sealingly connected to the end of the hose 12, such as by a rubber stopper, and the syringe is in communication with the hose by insertion of the rubber stopper.
In this embodiment, the liquid injected into the catheter 1 is a liquid medicine, so that the medicine is delivered into the tunnel for washing and sterilizing, and the anti-inflammatory and antibacterial effects are achieved.
Example 2
As shown in fig. 2: a tunnel flushing disinfection catheter for dialysis is characterized in that an inclined opening is formed at one end of the catheter 1' inserted into a tunnel portal, a tip main hole is formed, and a rough surface 5 for attaching and smearing medicines is arranged on the back surface of the tip main hole and the section of the catheter body extending into the tunnel.
Specifically, the front end of the catheter 1' is designed to have a structure in which one surface is provided with a tip main hole and the other surface is designed to be a rough surface. The catheter is preferably a plastic hose with certain hardness, and can detect the tunnel inflammation depth and effectively reach the tunnel inflammation part by the external medicine.
In this embodiment, the rough surface 5 may be a polyester rough surface, or may be designed into a convex or concave structure, and the rough surface may be in a grid shape, a sphere shape, a honeycomb shape, or the like. Preferably, the rough surface of the back of the main hole of the tip is a grating polyester rough surface, and the rough surface of the pipe body comprises a plurality of grating bulges which are arranged at intervals. Through setting up roughness 5, can make the medicine firmly adhere to on the roughness, be difficult for dropping in the transportation process, improve the medication efficiency greatly. The medicine for applying the embodiment can be gel or paste medicine, and the ointment is applied on the rough surface opposite to the peritoneal dialysis catheter 7 before the medicine is sent into the tunnel portal, so that the medicine such as mupirocin and the like is prevented from corroding the peritoneal dialysis catheter.
In this embodiment, the other end of the catheter 1' is provided with a connector 4, and the structure of the connector 4 may be the same as that of the connector of embodiment 1, so as to connect with a syringe, inject liquid into the catheter, and deliver cleaning disinfectant or other liquid medicine to the tunnel through the main hole of the tip.
In this embodiment, the catheter 1' is a plastic hose made of a slightly hard material, so that the application is facilitated.
Example 3
The difference from embodiment 2 is that the front tip 11 of the catheter is a closed structure, and a tip main hole is not provided, so that the catheter is coated with external medicine only through a rough surface, and is not used for injecting liquid medicine.
Otherwise, the same as in example 2 was conducted.
Example 4
The difference from the embodiment 2 is that the catheters of the embodiments 1 and 2 are combined into a catheter, namely, the front end of the catheter is provided with an inclined opening to form a tip main hole; the side surface of the front end is provided with a plurality of side holes; the back of the tip main hole and the other surface opposite to the side hole are provided with rough surfaces for attaching and smearing medicines; the end of the catheter is provided with a connector for connecting the injector, so that the catheter with the liquid injection and the medicine smearing body as a whole is formed, two catheters are not required to be used for operation respectively, the structure is greatly simplified, and the operation convenience is improved. Wherein, the rough surface is arranged at the position with high hardness of the front end head, which is convenient for coating.
Example 5
As shown in fig. 3: a tunnel washing and disinfecting device for dialysis comprises two sets of matched catheters as in the embodiment 1 and the embodiment 2 and a syringe 6 matched with each catheter. Hereinafter, the catheter in example 1 is abbreviated as catheter # 1, and the catheter in example 2 is abbreviated as catheter # 2.
As shown in fig. 4 and 5: the using method of the appliance used in the embodiment comprises the following steps:
when the tunnel needs to be flushed, the front end head 11 of the catheter 1# is conveyed to the tunnel inflammation position through the tunnel opening, the liquid medicine is filled into the injector 6 and is communicated with the catheter 1# and pushed into the catheter 1# through the injector 6, and the medicine enters the deep part of the tunnel through the tip main hole 2 and the side hole 3 under the thrust action of the injector to visit the tunnel infection position, so that the tunnel is cleaned and disinfected.
Or the catheter 2# is used for cleaning the tunnel infection place instead of the catheter 1 #.
Or the tunnel infection part is cleaned for the first time by adopting the conduit 1# and then is cleaned for the second time by adopting the conduit 2#.
When the medicine is needed to be applied, the paste or gel medicine is coated on the rough surface of the catheter 2# and the rough surface faces away from the peritoneal dialysis catheter 7, the front end 11 of the catheter 2# is conveyed to the tunnel inflammation position through the tunnel opening, the medicine is attached to the rough surface 5 in the conveying process, and then the medicine is coated on the tunnel infection position.
The following is an example of a peritoneal dialysis tunnel:
the liquid mixed by the disinfection medicine and the antibiotics is filled into the injector 6 by adopting the conduit 1#, and after the liquid is connected with the conduit 1#, the thin and hard inclined plastic head of the conduit 1# isutilized to probe into the gap between the tunnel skin and the abdominal permeability tube, and the tunnel cleaning and disinfection are carried out by deep injection at the position of the tunnel infection. The catheter No. 2 is adopted, the head end is provided with a tip main hole 2, liquid medicine can be injected, and the rough surface on the back of the tip main hole 2 and the rough surface 5 of the tube body can be attached with paste or gel medicine and extend into a tunnel infection part for medicine feeding. Through the embodiment, great convenience can be brought to the treatment of patients with peritoneal dialysis tunnelling, and the cure rate of chronic tunnelling is greatly improved.
In summary, the catheter can extend into the deep part of the tunnel to detect the inflammation part of the tunnel to perform timely flushing, disinfection and antibiosis, and the patient can perform home flushing, so that the catheter has the advantages of convenient use, simple structure and high cleaning efficiency, and can perform timely and effective treatment on the inflammation or granulation of the tunnel at the deep part; on the other hand, two different modes of treatment of flushing (liquid medicine) and smearing (gel or paste) can be realized; and the injection speed is moderate, so that the problem that the infection focus falls off and adheres to other parts of the tunnel due to rapid flushing is avoided.
Example 6
The difference from example 5 is that the tunnel washing and disinfecting device for dialysis of this example comprises a set of matched catheters as in example 4 and a syringe matched with the catheters. The specific working principle is as follows:
when the tunnel needs to be flushed, the front end head 11 of the catheter is conveyed to the inflammation position of the tunnel through the tunnel opening, the liquid medicine is filled into the injector and communicated with the catheter, the liquid medicine is pushed into the catheter through the injector, and the medicine enters the deep part of the tunnel under the thrust action of the injector to detect the infection position of the tunnel, so that the tunnel is cleaned and disinfected.
When the medicine is needed to be applied, paste or gel medicine is smeared on the rough surface of the catheter, the front end head 11 of the catheter is conveyed to the tunnel inflammation position through the tunnel opening, the medicine is attached to the rough surface in the conveying process, and then the medicine is smeared on the tunnel infection position.
When the washing and the medicine feeding are needed at the same time, paste or gel medicines are smeared on the rough surface of the catheter, the front end 11 of the catheter is conveyed to the tunnel inflammation position through the tunnel opening, the liquid medicines are filled into the injector and communicated with the catheter, the liquid medicines are pushed into the catheter through the injector, and the liquid medicines flow to the tunnel infection position through the main hole and the side hole to clean and disinfect the tunnel; meanwhile, the medicine smeared on the rough surface is smeared on the infected part of the tunnel.
As shown in fig. 6: the outer surface of the side hole is covered with an elastic film 8, the elastic film 8 is positioned right above the side hole 3, the width of the elastic film is half of that of the side hole, the elastic film 8 divides the side hole 3 into two uniform small holes, and the two small holes are all semicircular. When in use, the elastic film 8 can be changed into different shapes under different fluid pressures, when the pressure is small, the water outlet area of the semicircular small holes is small, but when the pressure is large, the water outlet area of the semicircular small holes is also large, and the regulation has the greatest advantages that: in the case of manual operation, the hand thrust cannot be truly uniform, and the speed of the fluid when ejected is substantially the same by the regulating action of the elastic membrane 8. In order to better utilize the adjusting function of the elastic film 8, the side hole 3 is made into an elliptical shape, so that the sizes of the two small holes are more convenient to adjust.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect applications in other related arts using the present invention description and drawings are included in the scope of the present invention.

Claims (7)

1. A tunnel flushing disinfection conduit for dialysis, which is characterized in that the conduit is provided with an inclined opening at the end inserted into a tunnel portal to form a tip main hole; the section of the pipe body extending into the target position of the tunnel is provided with a plurality of side holes;
the hardness of the end head is greater than that of the pipe body; the catheter is provided with a connector for connecting an aspirator; the outer surface of the side hole is covered with an elastic film, and the elastic film is positioned right above the side hole and has a width which is half of that of the side hole; the other positions of the conduit except the end head are hoses;
the catheter is provided with a rough surface for attaching and smearing medicines on the back surface of the tip main hole and the other surface opposite to the side hole.
2. The tunnel-flushing disinfection catheter for dialysis as claimed in claim 1, wherein the tip main hole has an inclination angle of 30 ° to 45 °.
3. The tunnel flushing disinfection catheter for dialysis as set forth in claim 1, wherein the aperture of the side hole is 1 to 2mm.
4. The tunnel-flushing disinfection catheter for dialysis as claimed in claim 1, wherein the roughened surface is positioned opposite the existing peritoneal dialysis set-up tube in the tunnel.
5. A tunnel flushing disinfection conduit for dialysis is characterized by comprising a first conduit and a second conduit, wherein the first conduit is provided with an inclined opening at the end inserted into a tunnel portal to form a tip main hole; the tube body of the first catheter is provided with a plurality of side holes, and the inclined mouth and the side holes are used for conveying liquid medicines in the first catheter to a tunnel target position; the second conduit is provided with a rough surface for adhering and smearing medicines on the end head inserted into the tunnel portal and the pipe body.
6. The tunnel-rinsing and disinfecting catheter for dialysis according to claim 5, wherein the second catheter is also provided with a tip main hole at the end inserted into the tunnel opening, the tip main hole being provided at the back of the roughened surface.
7. The tunnel-rinsing disinfection catheter for dialysis according to claim 5, wherein said first catheter and said second catheter are each provided with a connector for connecting an aspirator; or only the first conduit is provided with a joint for connection to an aspirator.
CN202210638210.8A 2022-06-08 2022-06-08 Tunnel flushing disinfection catheter for dialysis and use method thereof Active CN114767983B (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704102A (en) * 1982-09-30 1987-11-03 Geneco Inc. Method of eliminating intra abdominal infections
CN2289565Y (en) * 1997-03-21 1998-09-02 李中和 Lead-in washing apparatus of peritoneal dialysis pipe
CN2488513Y (en) * 2001-03-22 2002-05-01 四川华西生物医学科技发展有限公司 Disposable medical liquid bag and pipeline
CN204092683U (en) * 2014-07-24 2015-01-14 北华大学 A kind of peritoneal dialysis doser
CN208770064U (en) * 2018-02-09 2019-04-23 雷月兰 A kind of raise pigs bites surface of a wound feeding device with mosquitos and flies
CN209033316U (en) * 2018-08-29 2019-06-28 四川省人民医院 A kind of peritoneal dialysis three bags of peritoneal irrigation suits of duplex
CN209405352U (en) * 2018-11-30 2019-09-20 中国人民解放军第二军医大学第二附属医院 A kind of drainage tube and its system of flushing and administration integrated setting
CN211068318U (en) * 2019-07-16 2020-07-24 百色市人民医院 Flushing device for hemodialysis long-term catheter subcutaneous tunnel infection
CN213822709U (en) * 2020-11-03 2021-07-30 北京大学第一医院 Disposable sterilizing bag for titanium head of peritoneal dialysis tube
CN214911360U (en) * 2021-01-04 2021-11-30 阿克陶县人民医院 Flushing device for hemodialysis long-term catheter subcutaneous tunnel infection

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704102A (en) * 1982-09-30 1987-11-03 Geneco Inc. Method of eliminating intra abdominal infections
CN2289565Y (en) * 1997-03-21 1998-09-02 李中和 Lead-in washing apparatus of peritoneal dialysis pipe
CN2488513Y (en) * 2001-03-22 2002-05-01 四川华西生物医学科技发展有限公司 Disposable medical liquid bag and pipeline
CN204092683U (en) * 2014-07-24 2015-01-14 北华大学 A kind of peritoneal dialysis doser
CN208770064U (en) * 2018-02-09 2019-04-23 雷月兰 A kind of raise pigs bites surface of a wound feeding device with mosquitos and flies
CN209033316U (en) * 2018-08-29 2019-06-28 四川省人民医院 A kind of peritoneal dialysis three bags of peritoneal irrigation suits of duplex
CN209405352U (en) * 2018-11-30 2019-09-20 中国人民解放军第二军医大学第二附属医院 A kind of drainage tube and its system of flushing and administration integrated setting
CN211068318U (en) * 2019-07-16 2020-07-24 百色市人民医院 Flushing device for hemodialysis long-term catheter subcutaneous tunnel infection
CN213822709U (en) * 2020-11-03 2021-07-30 北京大学第一医院 Disposable sterilizing bag for titanium head of peritoneal dialysis tube
CN214911360U (en) * 2021-01-04 2021-11-30 阿克陶县人民医院 Flushing device for hemodialysis long-term catheter subcutaneous tunnel infection

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