CN111672007A - Anti-infection central venous catheter - Google Patents
Anti-infection central venous catheter Download PDFInfo
- Publication number
- CN111672007A CN111672007A CN202010413452.8A CN202010413452A CN111672007A CN 111672007 A CN111672007 A CN 111672007A CN 202010413452 A CN202010413452 A CN 202010413452A CN 111672007 A CN111672007 A CN 111672007A
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- Prior art keywords
- disinfection
- way valve
- infection
- central venous
- channel
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
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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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/105—Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0056—Catheters; Hollow probes characterised by structural features provided with an antibacterial agent, e.g. by coating, residing in the polymer matrix or releasing an agent out of a reservoir
Abstract
The invention provides an anti-infection central venous catheter which comprises a catheter body, a connecting seat, an extension catheter joint, a side branch and a disinfection assembly, wherein the catheter body, the connecting seat, the extension catheter and the extension catheter joint are sequentially connected and communicated, the disinfection assembly comprises a connecting device and a disinfection device, the side branch is fixedly connected with the connecting device, one end of the connecting device is fixedly connected with the extension catheter joint, the other end of the connecting device is movably connected with the disinfection device, and the disinfection device is used for disinfecting the inside or the outside of the extension catheter joint (4). The invention provides an anti-infection central venous catheter, which is characterized in that a structure of a disinfection component is added at the position of a catheter connector, volatile disinfection substances such as alcohol cotton are filled in the disinfection component, and the inner part and the outer part of the catheter connector can be continuously disinfected by utilizing the volatile characteristic of alcohol.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an anti-infection central venous catheter.
Background
The Central Venous Catheter (CVC) is suitable for monitoring the central venous pressure of critically ill patients, collecting venous blood samples and infusing drugs or solutions intravenously, and a plurality of cavities are arranged in the CVC, so that a plurality of venous circulation channels can be provided at one puncture point, and the CVC is convenient for carrying out the operations at the same time. Therefore, the Central Venous Catheter (CVC) has wider application in clinical critical medicine, and has the characteristics of simple catheter placement operation, long retention time, quick fluid infusion and the like.
However, CVC, a invasive interventional catheter, is at risk of complications such as phlebitis, catheter breakage, catheter-related bloodstream infection, etc. after placement. According to literature search analysis, incidence of CVC infection in ICU patients is about 15%, with catheter-related bloodstream infection being the most common and leading to higher mortality rates. The main causes of infection are related to skin contamination and the susceptibility of the catheter hub site to contamination. Therefore, there is a great need for an infection-preventing central venous catheter.
Disclosure of Invention
The invention aims to provide an anti-infection central venous catheter, which aims to solve the problems of the related art that the catheter has complications such as phlebitis, catheter breakage, catheter-related blood flow infection and the like after being placed.
The invention provides an anti-infection central venous catheter which comprises a catheter body, a connecting seat, an extension catheter joint, a side branch and a disinfection assembly, wherein the catheter body, the connecting seat, the extension catheter and the extension catheter joint are sequentially connected and communicated, the disinfection assembly comprises a connecting device and a disinfection device, the side branch is fixedly connected with the connecting device, one end of the connecting device is fixedly connected with the extension catheter joint, the other end of the connecting device is movably connected with the disinfection device, and the disinfection device is used for disinfecting the inside or the outside of the extension catheter joint.
Further, connecting device includes the three-way valve, degassing unit includes disinfection part, the first end of three-way valve with extension coupling fixed connection, the second end of three-way valve with disinfection part swing joint, collateral branch fixed connection in the third end of three-way valve, the inside loading of disinfection part has volatile disinfection material, it is right that disinfection part is right extension coupling's inside or outside disinfection treatment.
Further, the disinfection component comprises a rubber pad, the rubber pad is fixedly arranged in the middle of the inside of the disinfection component, the volatile disinfection substance is placed at one end, far away from the three-way valve, of the rubber pad, and the volatile disinfection substance sterilizes the rubber pad.
Further, disinfection part includes fretwork baffle, connecting portion, disinfection portion, the fretwork baffle is fixed set up in the inside intermediate position of disinfection part will disinfection part is inside to be divided into connecting portion with disinfection portion, connecting portion with the three-way valve passes through screw thread fixed connection, volatile disinfection material has been placed in the disinfection portion, and volatile disinfection material passes through the fretwork baffle is right the inside of epitaxial tube connects is disinfected.
Further, the three-way valve comprises a second channel and a hollow cavity, the second channel is arranged at one end, close to the disinfection component, of the three-way valve, the hollow cavity is arranged in the middle of the three-way valve and communicated with the second channel, and the diameter of the hollow cavity is larger than that of the second channel;
the disinfection component comprises a rubber plug, the rubber plug is fixedly connected with the hollow clapboard, the diameter of the rubber plug is the same as that of the second channel, the rubber plug can be tightly attached to the inner wall of the second channel, and the diameter of the rubber plug is smaller than that of the hollow cavity;
and adjusting the relative position of the rubber plug in the three-way valve by controlling the relative position of the disinfection component relative to the three-way valve, and further controlling whether the disinfection component carries out disinfection treatment on the interior of the extension pipe joint.
Further, the disinfection part includes the push rod, the one end of push rod with fretwork baffle fixed connection, the other end of push rod with rubber buffer fixed connection.
Further, the three-way valve includes the first passageway, the first passageway set up in the three-way valve is kept away from the one end of disinfection part, just the first passageway with well cavity communicates with each other, the first passageway with the diameter of second passageway is the same, the rubber buffer can with the inner wall of second passageway closely laminates, the first passageway passes through epitaxial tube joint with the inside of epitaxial tube communicates with each other.
Further, the three-way valve comprises a third channel, the third channel is communicated with the hollow cavity, the diameters of the third channel and the second channel are the same, and the third channel is communicated with the inside of the side branch.
Further, the sterilizing part comprises a sterilizing main body and a cap which are fixedly connected with each other.
Further, the body is the gradual change formula structure, and the distance the farther away from the connecting seat, the body external diameter reduces gradually.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an anti-infection central venous catheter, which is characterized in that a structure of a disinfection component is added at the position of a catheter connector, volatile disinfection substances such as alcohol cotton are filled in the disinfection component, and the inner part and the outer part of the catheter connector can be continuously disinfected by utilizing the volatile characteristic of alcohol.
The invention provides an anti-infection central venous catheter, wherein a disinfection component comprises a three-way valve and a disinfection part which are in threaded connection, and the relative position of the disinfection part relative to the three-way valve can be controlled through threaded connection, so that the disinfected part of alcohol cotton can be adjusted.
The invention provides an anti-infection central venous catheter, wherein a disinfection component comprises a cap, so that a clinician can conveniently replace alcohol cotton at any time without using antibiotics to seal the catheter, the clinical operation is convenient, and the risk of catheter infection is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of an anti-infection central venous catheter provided by the invention;
FIG. 2 is a schematic disassembled view of an anti-infection central venous catheter provided by the present invention;
FIG. 3 is a schematic view showing the internal structure of a first embodiment of an anti-infection central venous catheter according to the present invention;
FIG. 4 is a schematic view of the internal structure of a first embodiment of an anti-infection central venous catheter according to the present invention;
FIG. 5 is a schematic view showing the internal structure of a first embodiment of an anti-infection central venous catheter according to the present invention;
fig. 6 is a schematic view of the internal structure of a second embodiment of an anti-infection central venous catheter provided by the invention.
Reference numbers in the figures:
the pipe body 1, the connecting seat 2, the extension pipe 3, the extension pipe joint 4, the three-way valve 5, the first channel 51, the second channel 52, the third channel 53, the hollow cavity 54, the screw cap 55, the disinfecting part 6, the disinfecting main body 61, the hollow partition 611, the connecting part 612, the disinfecting part 613, the push rod 614, the rubber plug 615, the rubber pad 616, the cap 62, the side branch 7 and the side branch joint 71.
Detailed Description
The present invention will be further described below based on preferred embodiments with reference to the accompanying drawings.
In addition, the various components on the drawings are enlarged (thick) or reduced (thin) for convenience of understanding, but this is not intended to limit the scope of the present invention.
Singular references also include plural references and vice versa.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the products of the present invention are used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, the present invention should not be construed as being limited. Furthermore, the terms first, second, etc. may be used in the description to distinguish between different elements, but these should not be limited by the order of manufacture or by importance to be understood as indicating or implying any particular importance, and their names may differ between the detailed description of the invention and the claims.
The terminology used in the description is for the purpose of describing the embodiments of the invention and is not intended to be limiting of the invention. It is also to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "connected," and "connected" are intended to be open-ended, i.e., may be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. Those skilled in the art will specifically understand that the above description is intended to be within the meaning of the present invention.
Example 1
The invention provides an anti-infection central venous catheter which comprises a catheter body 1, a connecting seat 2, an epitaxial catheter 3 and an epitaxial tube joint 4, wherein the catheter body 1, the connecting seat 2, the epitaxial catheter 3 and the epitaxial tube joint 4 are sequentially connected and communicated, the catheter body 1 is fixedly connected to one end of the connecting seat 2, the epitaxial catheter 3 is fixedly connected to the other end of the connecting seat 2, the catheter body 1 is connected with the epitaxial catheter 3 through the connecting seat 2, and the epitaxial tube joint 4 is fixedly connected to the end part of the.
Preferably, at least two extension tubes 3 are fixedly connected to the connecting socket 2.
Preferably, body 1 is the gradual change formula structure, and the partial external diameter that is close to connecting seat 2 is thick, and is far away more apart from connecting seat 2, and body 1 external diameter reduces gradually, and this kind of structural design makes body 1 external diameter of putting into human part thin, and reducible body 1 and venous area of contact alleviates the risk of phlebitis, and the body 1 external diameter of staying human outside part is thick, can alleviate the pressure to body 1 front end among the high pressure infusion process, the damaged risk of greatly reduced pipe.
The invention provides an anti-infection central venous catheter, which further comprises a disinfection component, wherein the disinfection component is used for disinfecting the inside or the outside of an extension pipe joint 4. Specifically, in this embodiment, the sterilization assembly includes a connection device and a sterilization device, a first end of the connection device is fixedly connected with the extension pipe joint 4, the sterilization device is movably connected with the connection device, and the sterilization device performs sterilization treatment on the inside of the extension pipe joint 4 through the connection device.
Preferably, the invention provides an anti-infection central venous catheter, which further comprises a side branch 7, wherein the side branch 7 is fixedly connected with a connecting device, and the structural design of the side branch 7 can reduce the pressure on the catheter body 1 and the epitaxial tube 3 in the high-pressure injection process of CVC, so that the problem that the catheter body 1 and the epitaxial tube 3 are easily damaged in a high-pressure environment when a quick fluid infusion is needed for ICU patients with complicated and critical conditions and high-pressure drug infusion is adopted.
Preferably, the side branch 7 comprises a side branch joint 71, the side branch joint 71 being fixedly connected to the end of the side branch 7.
Preferably, in this embodiment, the connecting device is a three-way valve 5, the sterilizing device is a sterilizing part 6, the three-way valve 5 is a T-shaped structure, a first end of the three-way valve 5 is fixedly connected with the extension pipe joint 4 through a nut 55, the sterilizing part 6 is fixedly connected with a second end of the three-way valve 5, and the side branch 7 is fixedly connected with a third end of the three-way valve 5.
The three-way valve 5 comprises a first channel 51, a second channel 52, a third channel 53 and a hollow cavity 54, wherein the first channel 51 is arranged at a first end of the three-way valve 5, the second channel 52 is arranged at a second end of the three-way valve 5, the third channel 53 is arranged at a third end of the three-way valve 5, the diameters of the first channel 51, the second channel 52 and the third channel 53 are the same, the hollow cavity 54 is arranged in the middle of the three-way valve 5, the hollow cavity 54 is communicated with the first channel 51, the second channel 52 and the third channel 53, and the diameter of the hollow cavity 54 is larger than the diameters of the first channel 51, the second channel 52 and the third channel 53.
The first passage 51 communicates with the interior of the extension tube 3 through the extension tube fitting 4 and the third passage 53 communicates with the interior of the side branch 7.
The second end of disinfection part 6 and three-way valve 5 passes through threaded connection, and the inside loading of disinfection part 6 has volatile disinfection material, for example, alcohol cotton, can disinfect to the inside of extension coupling 4 and collateral branch 7, through the relative position of the steerable disinfection part 6 of threaded connection for three-way valve 5, and then adjusts the sterile position of alcohol cotton.
Specifically, the disinfecting part 6 comprises a disinfecting body 61 and a cap 62 fixedly connected with each other, and preferably, the disinfecting body 61 and the cap 62 are in snap connection.
The disinfection main body 61 comprises a hollow partition plate 611, a connecting part 612, a disinfection part 613, a push rod 614 and a rubber plug 615, the hollow partition plate 611 is fixedly arranged at the middle position inside the disinfection main body 61, the inside of the disinfection main body 61 is divided into the connecting part 612 and the disinfection part 613, a plurality of hollow holes are formed in the hollow partition plate 611, so that alcohol in alcohol cotton can volatilize through the hollow holes, and then the inside of the extension pipe joint 4 and the side branch 7 can be disinfected.
Connecting portion 612 is provided with the internal thread, and the second end of three-way valve 5 is provided with the external screw thread, and both cooperate, with disinfection main part 61 and three-way valve 5 fixed connection, through the length of controlling disinfection main part 61 and the precession of three-way valve 5 screw thread, can adjust the relative position of disinfection main part 61 for three-way valve 5, and then adjust the sterile position of alcohol cotton.
One end of the push rod 614 is fixedly connected with the hollow partition 611, and the other end of the push rod 614 is fixedly connected with a rubber plug 615, preferably, the push rod 614 and the hollow partition 611 are integrally formed.
The diameter of the rubber plug 615 is the same as the diameter of the first channel 51 and the second channel 52, the rubber plug 615 can be closely attached to the inner walls of the first channel 51 and the second channel 52, the diameter of the rubber plug 615 is smaller than the diameter of the hollow cavity 54, the length of the rubber plug 615 is smaller than the length of the hollow cavity 54, when the rubber plug 615 is located in the hollow cavity 54, the rubber plug 615 cannot be attached to the inner wall of the hollow cavity 54, and a certain distance is left between the rubber plug 615 and the inner wall of the hollow cavity 54.
The disinfection portion 613 is provided with the opening, and the opening sets up back to the back with fretwork baffle 611, puts into disinfection portion 613 with the alcohol cotton from the opening part in, and block 62 is used for sealing the opening of disinfection portion 613, prevents that the alcohol cotton from volatilizing, can make things convenient for medical personnel to change the aseptic cotton simultaneously.
The working principle of the central venous catheter for preventing infection provided by the embodiment is explained in detail below.
In the case that alcohol cotton is loaded in the sterilizing part 613, referring to fig. 3, when the sterilizing part 6 is rotated to place the rubber stopper 615 in the second channel 52, the rubber stopper 615 is tightly attached to the inner wall of the second channel 52 to block the second channel 52, and at this time, the alcohol of the alcohol cotton in the sterilizing part 613 is volatilized into the second channel 52 through the hollow hole of the hollow partition 611, but cannot pass through the hollow cavity 54, and the interiors of the extension tube 3 and the side branch 7 are both in a closed state, so that the alcohol cotton in the sterilizing part 613 can sterilize the second channel 52, and a medical worker can perform clinical operations such as infusion on the interior of the extension tube 3 through the side branch 7.
Referring to fig. 4, when the sterilizing part 6 is rotated to position the rubber stopper 615 in the hollow cavity 54, since the diameter of the rubber stopper 615 is smaller than the diameter of the hollow cavity 54 and the length of the rubber stopper 615 is smaller than the length of the hollow cavity 54, the hollow cavity 54 is not blocked by the rubber stopper 615 at this time, and a certain distance is left between the rubber stopper 615 and the inner wall of the hollow cavity 54, the alcohol in the alcohol cotton in the sterilizing part 613 volatilizes through the hollow hole of the hollow partition 611, passes through the second passage 52 and the hollow cavity 54, and is continuously sterilized through the first passage 51, and is continuously sterilized through the third passage 53 to the lateral branch 7.
Referring to fig. 5, when the sterilizing component 6 is rotated to position the rubber stopper 615 in the first channel 51, the rubber stopper 615 is tightly attached to the inner wall of the first channel 51 to block the first channel 51, and at this time, the alcohol in the alcohol cotton in the sterilizing part 613 volatilizes through the hollow holes of the hollow partition 611, passes through the second channel 52 and the middle cavity 54, and continuously sterilizes the side branch 7 through the third channel 53, but the alcohol in the alcohol cotton cannot pass through the first channel 51, so that the inside of the first channel 51 is in a closed state, and the extension pipe joint 4 cannot be sterilized.
In addition, no matter where the disinfection component 6 is relative to the three-way valve 5, the alcohol in the alcohol cotton in the disinfection part 613 can be volatilized to the connection part 612 through the hollow holes on the hollow partition 611, and the disinfection part 613 can disinfect the connection part 612 and the three-way valve 5.
Example 2
This example provides an infection-proof central venous catheter, as shown in fig. 6, the structure of which in this example is substantially the same as that of example 2, except that:
in the present embodiment, the sterilizing assembly includes only the sterilizing device, which is the sterilizing member 6, and the sterilizing member 6 is screw-coupled with the extension pipe joint 4 or the side branch joint 71 for sterilizing the outside of the extension pipe joint 4 or the side branch joint 71.
The sterilizing part 6 comprises a sterilizing body 61 and a cap 62 fixedly connected with each other, preferably, the sterilizing body 61 and the cap 62 are in snap connection.
In this embodiment, the disinfection main body 61 includes a rubber pad 616, and the rubber pad 616 is fixedly disposed at a middle position inside the disinfection main body 61, and divides the inside of the disinfection main body 61 into a connecting portion 612 and a disinfection portion 613.
The connection portion 612 is provided with an internal thread, and an external thread is provided on the outside of the extension pipe joint 4 or the side branch joint 71, and they are engaged with each other to fixedly connect the sterilizing body 61 to the outside of the extension pipe joint 4 or the side branch joint 71.
The disinfection portion 613 is provided with the opening, and the opening sets up back to the back with rubber pad 616, puts into disinfection portion 613 with the aseptic cotton from the opening part in, block 62 is used for sealing the opening of disinfection portion 613, prevents that the aseptic cotton from volatilizing, can make things convenient for medical personnel to change the aseptic cotton simultaneously.
Preferably, the sterilizing cotton may be alcohol cotton or nonvolatile iodophor cotton for sterilizing the outside of the extension pipe joint 4 or the side branch joint 71. The working principle of the central venous catheter for preventing infection provided by the embodiment is explained in detail below.
The disinfection component 6 in this embodiment is used for disinfecting the outside of the extension pipe joint 4 or the side branch joint 71, the medical staff usually takes blood or injects medicine through the rubber pad 616, and the disinfection cotton in the disinfection part 613 can continuously disinfect the rubber pad 616, that is, disinfect the external interface of the central venous catheter, and avoid disinfecting the rubber pad 616 before taking blood or injecting medicine at each time. The structure design is convenient for medical personnel to operate, can keep the sterile state of the rubber pad 616, and reduces the risk of infection caused by the pollution of the catheter joint part.
When the needle head is used for blood sampling or medicine injection through the rubber pad 616, the sterilized cotton is taken out firstly, and new sterilized cotton is put in after the operation is completed, so that the aim of continuously sterilizing the rubber pad 616 is fulfilled.
While the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit of the invention, and it is intended to claim all such changes and modifications as fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a central venous catheter of infection prevention, includes body (1), connecting seat (2), epitaxial tube (3), epitaxial tube joint (4) that connect gradually and communicate, its characterized in that:
including collateral branch (7) and disinfection subassembly, the disinfection subassembly includes connecting device and degassing unit, collateral branch (7) with connecting device fixed connection, connecting device's one end with epitaxial tube joint (4) fixed connection, connecting device's the other end with degassing unit swing joint, degassing unit is right the inside or the outside of epitaxial tube joint (4) carry out disinfection treatment.
2. The infection-preventing central venous catheter as claimed in claim 1,
connecting device includes three-way valve (5), degassing unit includes disinfection part (6), the first end of three-way valve (5) with epitaxial tube joint (4) fixed connection, the second end of three-way valve (5) with disinfection part (6) swing joint, collateral branch (7) fixed connection in the third end of three-way valve (5), disinfection part (6) internal loading has volatile disinfection material, disinfection part (6) are right the inside or the outside of epitaxial tube joint (4) carry out disinfection processing.
3. The infection-preventing central venous catheter as claimed in claim 2,
the disinfection component (6) comprises a rubber pad (616), the rubber pad (616) is fixedly arranged in the middle position inside the disinfection component (6), a volatile disinfection substance is placed at one end, away from the three-way valve (5), of the rubber pad (616), and the volatile disinfection substance sterilizes the rubber pad (616).
4. The infection-preventing central venous catheter as claimed in claim 2,
disinfection part (6) include fretwork baffle (611), connecting portion (612), disinfection portion (613), fretwork baffle (611) fixed set up in the inside intermediate position of disinfection part (6), will disinfection part (6) is inside to be divided into connecting portion (612) with disinfection portion (613), connecting portion (612) with three-way valve (5) pass through screw thread fixed connection, volatile disinfection material has been placed in disinfection portion (613), and volatile disinfection material is through fretwork baffle (611) is to the inside of epitaxial tube joint (4) is disinfected.
5. An infection-resistant central venous catheter as claimed in claim 4,
the three-way valve (5) comprises a second passage (52) and a hollow cavity (54), the second passage (52) is arranged at one end of the three-way valve (5) close to the disinfection part (6), the hollow cavity (54) is arranged in the middle of the three-way valve (5), the hollow cavity (54) is communicated with the second passage (52), and the diameter of the hollow cavity (54) is larger than that of the second passage (52);
the disinfection component (6) comprises a rubber plug (615), the rubber plug (615) is fixedly connected with the hollow partition plate (611), the diameter of the rubber plug (615) is the same as that of the second channel (52), the rubber plug can be tightly attached to the inner wall of the second channel (52), and the diameter of the rubber plug (615) is smaller than that of the hollow cavity (54);
through control disinfection part (6) for the relative position of three-way valve (5), adjust rubber buffer (615) are in the relative position in three-way valve (5), and then control disinfection part (6) are right whether disinfection is carried out to the inside of extension coupling (4).
6. An infection-preventing central venous catheter as claimed in claim 5,
the disinfection component (6) comprises a push rod (614), one end of the push rod (614) is fixedly connected with the hollow partition plate (611), and the other end of the push rod (614) is fixedly connected with the rubber plug (615).
7. An infection-preventing central venous catheter as claimed in claim 5,
three-way valve (5) include first passageway (51), first passageway (51) set up in three-way valve (5) are kept away from the one end of disinfection part (6), just first passageway (51) with well cavity (54) communicate with each other, first passageway (51) with the diameter of second passageway (52) is the same, rubber buffer (615) can with the inner wall of second passageway (52) closely laminates, first passageway (51) pass through epitaxial tube joint (4) with the inside of epitaxial pipe (3) communicates with each other.
8. An infection-preventing central venous catheter as claimed in claim 5,
the three-way valve (5) comprises a third channel (53), the third channel (53) is communicated with the hollow cavity (54), the diameters of the third channel (53) and the second channel (52) are the same, and the third channel (53) is communicated with the inside of the side branch (7).
9. The infection-preventing central venous catheter as claimed in claim 2,
the disinfection component (6) comprises a disinfection main body (61) and a cover cap (62) which are fixedly connected with each other.
10. The infection-preventing central venous catheter as claimed in claim 1,
the pipe body (1) is of a gradual change type structure, the farther away the pipe body is from the connecting seat (2), and the outer diameter of the pipe body (1) is gradually reduced.
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| CN202010413452.8A CN111672007B (en) | 2020-05-15 | 2020-05-15 | Anti-infection central venous catheter |
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| CN202010413452.8A CN111672007B (en) | 2020-05-15 | 2020-05-15 | Anti-infection central venous catheter |
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| CN111672007B CN111672007B (en) | 2022-09-16 |
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| CN104225642B (en) * | 2014-09-12 | 2017-05-10 | 江苏苏云医疗器材有限公司 | Joint protective cap |
| AU2015353815A1 (en) * | 2014-11-24 | 2017-05-18 | Merit Medical Systems, Inc. | Disinfecting cap for medical connectors |
| US20180085568A1 (en) * | 2016-09-26 | 2018-03-29 | Zoran Drmanovic | Disinfecting luer connector |
| CN206499717U (en) * | 2016-12-07 | 2017-09-19 | 杨英 | A kind of venous detaining needle with blood sampling function |
| CN107754049A (en) * | 2016-12-27 | 2018-03-06 | 上海交通大学 | Prevent the device that remaining needle positive pressure connector pollutes and the method based on the device |
| WO2018144045A1 (en) * | 2017-02-05 | 2018-08-09 | Innomedtwo, Llc | Catheter system for continuous irrigation |
| CN208031649U (en) * | 2017-11-20 | 2018-11-02 | 赵维青 | A kind of gynaecology's fountain explosive-feeding processing device |
| CN209173034U (en) * | 2018-08-20 | 2019-07-30 | 威海吉威重症医疗制品有限公司 | A kind of expanding catheter |
| CN210102419U (en) * | 2019-06-28 | 2020-02-21 | 河南亚太医疗用品有限公司 | Medical cotton ball storage device |
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| CN111672007B (en) | 2022-09-16 |
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Address after: 288-7 Shanhai Road, torch hi tech Industrial Development Zone, Weihai City, Shandong Province 264200 Applicant after: Shandong Baixin Medical Products Co.,Ltd. Address before: No.68, Dalian Road, Yiyuan street, Weihai City, Shandong Province Applicant before: JW ICU MEDICAL Ltd. |
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