CN219501839U - Multifunctional sterile cap, pre-flushing type flusher, infusion catheter or drainage catheter - Google Patents

Abstract

The utility model discloses a multifunctional sterile cap, wherein one end of a first end cap is provided with an opening, the other end of the first end cap is provided with a sealing component, a first matching cavity for matching with a pre-flushing flusher is formed between the sealing component and the first end cap, one end of a second end cap is fixed with the sealing component, and a second matching cavity for matching with an infusion catheter or a drainage catheter connector is formed between the sealing component and the second end cap; or the second end cap is fixed with the first end cap, the second end cap surrounds the sealing and isolating part, and a second matching cavity for matching with the infusion catheter or the drainage catheter connector is formed between the first end cap and the sealing and isolating part as well as between the second end cap; or one end of the second end cap is respectively fixed with the first end cap and the sealing and isolating part, and a second matching cavity for matching with the infusion catheter or the drainage catheter connector is formed between the sealing and isolating part and the second end cap. The multifunctional sterile cap realizes the multi-purpose and seamless butt joint protection of one cap.

Description

Multifunctional sterile cap, pre-flushing type flusher, infusion catheter or drainage catheter

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a multifunctional sterile cap, a pre-flushing type flusher, an infusion catheter or a drainage catheter.

Background

The indwelling needle is a catheter for introducing a central vein through the periphery, and is called a venous indwelling needle, and as shown in fig. 1, the indwelling needle comprises a flexible catheter 1 capable of being indwelled in a blood vessel, a stainless steel puncture guiding needle core 2, a tee joint 3, an extension tube 4, a separation plug 5, a positive pressure joint 6, a positive pressure valve 7 and a soft plug joint 8. The catheter 1 wraps a part of the puncture guiding needle core 2, the puncture guiding needle core 1 is further connected with the tee joint 3, one end of the extension tube 4 and the isolation plug 5 are respectively connected with the tee joint 3, the other end of the extension tube 4 is connected with the positive pressure joint 6, the positive pressure joint 6 is respectively provided with a positive pressure valve 7 and a soft plug joint 8, and the positive pressure valve 7 or the soft plug joint 8 is respectively connected with an end cap for protection. When in use, the catheter and the needle core are punctured into the blood vessel together, and after the catheter completely enters the blood vessel, the needle core is withdrawn, and only the soft catheter is remained in the blood vessel, so that transfusion treatment is carried out.

Since the indwelling needle is reserved in the blood vessel of the patient after the primary use, a pre-flush type flusher (a pre-flush type flusher is used as a pre-flush type injector) is usually used to be connected with the positive pressure valve 7 or the soft plug connector 8 before and after the repeated use (for example, the patient needs to be infused again), and an infusion catheter is connected through the pre-flush type flusher for pre-flush treatment. The above structure has the following drawbacks:

1 st, the head on the pre-flush flusher can be from taking a protection end cap usually, during the use, take off the end cap and discard earlier, take off the end cap on positive pressure valve 7 or the cork connector 8 and discard again, be connected with positive pressure valve 7 or cork connector 8 with the pre-flush flusher again, from this, can use and discard two end caps once in the in-process of repeatedly using the remaining needle, has caused use cost high and wasting of resources.

2 nd, in the prior art, for the first use of the indwelling needle, the positive pressure valve 7 or the soft plug connector 8 is respectively connected with an end cap, and when in use, the end cap is removed. However, since the infusion of the patient often takes several hours or even more than ten hours, if the cap removed from the positive pressure valve 7 or the plug connector 8 is stored for a long period of time, there is a risk of bacteria infection or the like, and the cap stored for a long period of time is not allowed to be reused in medical instruction, and therefore, the cap removed from the positive pressure valve 7 or the plug connector 8 can only be discarded. Further, since a new end cap is not usually replenished after the completion of the infusion, the positive pressure valve 7 or the stopper adapter 8 is exposed, and when the indwelling needle is reused, it is a conventional practice to sterilize the positive pressure valve 7 or the stopper adapter 8 with a sterile cotton swab.

In clinical work, with the widespread use of various peripheral venous short catheters, arterial catheters, central venous medium/long catheters, caregivers can effectively disinfect or protect the joint from contamination, becoming an important link in conducting catheter care operations. Obviously, the use of a cotton swab as described above for sterilizing the positive pressure valve 7 or the cork adapter 8 not only requires a high level of care to be taken, but also may present incomplete or incomplete sterilization factors during the operation, which may result in the patient being infected.

Disclosure of Invention

The utility model provides a multifunctional sterile cap, a pre-flushing type flusher, an infusion catheter or a drainage catheter.

The utility model provides a multi-functional aseptic cap, includes first end cap, and the one end of first end cap has the opening and the other end is equipped with seals the partition member, forms between sealing the partition member and first end cap and is used for with the first cooperation cavity of prestowards formula flusher complex, still includes:

the second end cap, one end of the second end cap is fixed with the sealing and isolating part, form the second fit cavity used for cooperating with infusion conduit or drainage conduit joint between sealing and isolating part and second end cap; or alternatively

The second end cap is fixed with the first end cap, the second end cap surrounds the sealing and isolating part, and a second matching cavity for matching with the infusion catheter or the drainage catheter connector is formed between the first end cap and the sealing and isolating part as well as between the first end cap and the second end cap; or alternatively

One end of the second end cap is respectively fixed with the first end cap and the sealing and isolating part, and a second matching cavity for matching with the infusion catheter or the drainage catheter connector is formed between the sealing and isolating part and the second end cap.

The pre-flushing type flusher comprises a pre-flushing type flusher body and further comprises a multifunctional sterile cap, wherein a first end cap of the multifunctional sterile cap is connected with the pre-flushing type flusher body.

The infusion catheter or the drainage catheter comprises an infusion catheter or a drainage catheter body and further comprises a multifunctional sterile cap, and a joint of the infusion catheter or the drainage catheter is connected with a second end cap of the multifunctional sterile cap.

The multifunctional sterile cap is used as a sterile dual-purpose joint protection device, is used for protecting the end of a pipeline of a closed catheter by once or twice capping after the gap between the end and the end is flushed before and after twice drug treatment, can discard the last sterile cap (avoid the difficulty of inconvenient storage of the sterile cap), and achieves the seamless butt joint protection of the gap between the two drug administration, thereby effectively preventing infection and realizing the reutilization of the multifunctional sterile cap without violating the sterile operation principle.

The utility model has the following advantages:

1. the utility model is convenient for the gap between two administrations (or static pushing, or transfusion, or flushing), and the sterile cap can be connected with various peripheral vein short catheter joints, arterial catheter joints, central vein medium-length or long catheter joints and drainage tube joints, so as to protect the joints of the catheters from being polluted by dander or other dirt.

2. The risk of incomplete cotton swab disinfection is reduced, the disinfection difficulty of nursing staff during nursing is reduced, and the disinfection operation time and the labor intensity before medication are reduced.

3. The multifunctional sterile cap connected to the catheter connector last time can be discarded when the medicine is used, so that the nursing work difficulty caused by inconvenient storage of the traditional connector cap is avoided.

4. Can be connected with a pre-flushing type flusher or various infusion catheters or joints of drainage catheters, and realizes the purposes of one cap with multiple purposes, environmental protection, economy and convenience.

Drawings

Fig. 1 is a schematic view of an indwelling needle.

Fig. 2 is a perspective view of a first multi-functional aseptic cap.

Fig. 3 is a cross-sectional view of a first multi-functional sterile cap.

Fig. 4 is a schematic view of a further improvement of the first multi-functional sterile cap.

Fig. 5 is a cross-sectional view of a second multi-functional sterile cap.

Fig. 6 is a schematic diagram showing a modification of the second multi-functional aseptic cap.

Fig. 7 is a cross-sectional view of a third multi-functional aseptic cap.

Fig. 8 is a schematic structural view of a pre-flush type flusher.

Fig. 9 is a schematic view of an infusion catheter or drainage catheter.

The reference symbols in the drawings:

catheter 1, puncture guiding needle 2, tee 3, extension tube 4, isolation plug 5, positive pressure joint 6, positive pressure valve 7, soft plug joint 8, first end cap 10, step 10a, mounting hole 10b, external thread 10c, packing member 11, first mating cavity 12, second end cap 13, friction increasing member 13a, arc edge 13b, second mating cavity 14, internal thread 14a, protective cover 15, sterilizing member 16.

Detailed Description

Example 1

As shown in fig. 2, the first multifunctional aseptic cap of the present utility model comprises a first end cap 10, one end of the first end cap 10 is provided with an opening, the other end is provided with a sealing component 11, a first matching cavity 12 for matching with the pre-flushing syringe a is formed between the sealing component 11 and the first end cap 10, the multifunctional aseptic cap of the present embodiment further comprises a second end cap 13, one end of the second end cap 13 is fixed with the sealing component 11, and a second matching cavity 14 for matching with an infusion catheter or a drainage catheter joint is formed between the sealing component 11 and the second end cap 13. Preferably, the packing member 11 and the first end cap 10 are preferably integrally formed, and the second end cap 13 and the packing member 11 are preferably integrally formed.

The multifunctional aseptic cap of this embodiment is usually assembled with the pre-flush syringe a, and may be packaged in a package after the multifunctional aseptic cap is connected to the pre-flush syringe a through the first end cap 10, or may be packaged in the same package after the multifunctional aseptic cap is separated from the pre-flush syringe a. Preferably, the multifunctional sterile cap is connected with the output end of the pre-flushing type flusher A and then packaged in the packaging bag, so that the multifunctional sterile cap can form a protection effect on the pre-flushing type flusher A.

When the infusion of a patient is finished, the infusion catheter or the drainage catheter is flushed by adopting the pre-flushing type flusher A, if the multifunctional sterile cap and the pre-flushing type flusher A are in a connected state, the multifunctional sterile cap is firstly separated from the pre-flushing type flusher A, then the pre-flushing type flusher A is connected with a joint (such as a positive pressure valve 7 on an indwelling needle) of the infusion catheter or the drainage catheter, and after the flushing is finished, the pre-flushing type flusher A is separated from the infusion catheter or the drainage catheter. The flushing time is short, and the multifunctional sterile cap can be stored in the packaging bag in the flushing process, so that the multifunctional sterile cap can be continuously used, after the pre-flushing type flusher A is separated from the infusion catheter or the drainage catheter, the second end cap 13 of the multifunctional sterile cap is connected with the connector (such as the positive pressure valve 7 on the indwelling needle) of the infusion catheter or the drainage catheter, and the protection effect of the second end cap 13 on the connector of the infusion catheter or the drainage catheter is avoided, so that the connector (such as the positive pressure valve 7 on the indwelling needle) is in a bare state after the infusion of a patient is finished, and bacterial infection on the connector is prevented. Meanwhile, as the sealing and isolating component 11 is arranged on the multifunctional sterile cap, the first end cap 10 and the second end cap 13 are isolated by the sealing and isolating component 11 to form the first matching cavity 12 and the second matching cavity 14, after the second matching cavity 14 is matched with the infusion catheter or the drainage catheter connector, even if liquid passes through the positive pressure valve 7 on the indwelling needle, the liquid in the infusion catheter or the drainage catheter can not leak through the blocking effect of the sealing and isolating component 11.

As can be seen from the above, the multifunctional sterile cap in this embodiment is in a connection state with the output end of the pre-flush type flusher a before flushing the infusion catheter or the drainage catheter, and has a protective effect on the pre-flush type flusher a, and is connected with the infusion catheter or the drainage catheter connector before and after flushing the infusion catheter or the drainage catheter, and has a protective effect on the infusion catheter or the drainage catheter connector, so that the multifunctional sterile cap is multipurpose, and after flushing the pre-flush type flusher a, the multifunctional sterile cap is not directly discarded, but is continuously used through an improved structure, thereby saving cost and reducing resource consumption. In addition, the multifunctional sterile cap of the embodiment has a protective effect on the infusion catheter or the drainage catheter joint, so that the risk caused by incomplete sterilization of the cotton swab is reduced, the sterilization difficulty of nursing staff is reduced, and the sterilization operation time before medication and the labor intensity of the nursing staff are reduced.

Preferably, the second mating cavity 14 has an inner diameter greater than the inner diameter of the first mating cavity 12, which may facilitate distinguishing between the first end cap 10 and the second end cap 13 to avoid misconnection of the first end cap 10 and the second end cap 13 during use.

Preferably, the present embodiment further comprises a protection cover 15 and a sterilizing member 16 provided in the second fitting cavity 14, the protection cover 15 being connected to the other end of the second end cap 13. The protective cover 15 and the second end cap 13 may be in an interference fit or a threaded connection, wherein the amount of interference fit does not affect removal of the protective cover 15. The sterilizing unit 16 is disposed in the second matching chamber 14 in a filling manner, for example, the sterilizing unit 16 is made of sterilized cotton or sterilized paper impregnated with 75% alcohol, and the sterilizing unit 16 performs a sterilizing function on the second matching chamber 14 and then seals the second matching chamber by the protective cover 15, so that the second matching chamber can be stored for a long time.

Preferably, the outer wall surface of the first end cap 10 is provided with external threads 10c, and the inner wall surface of the second mating cavity 14 is provided with internal threads 14a. This design may facilitate distinguishing between the first end cap 10 and the second end cap 13 to avoid mismating of the first end cap 10 and the second end cap 13 during use.

Preferably, the second end cap 13 is provided with a friction increasing component 13a on the outer wall surface, the friction increasing component 13a preferably adopts a knurled structure, and the friction increasing component 13a can facilitate the medical staff to operate the multifunctional sterile cap.

Preferably, the end of the second end cap 13 is provided with an arcuate edge 13b for reducing the local pressure of the patient. After the second end cap 13 is connected with the connector of the infusion catheter or the drainage catheter, in order to prevent the multifunctional sterile cap from shaking or moving, the multifunctional sterile cap is usually bonded with the skin of the patient by using an adhesive tape, if the end part of the second end cap 13 is right-angle, larger pressure can be generated on local skin of the patient, and the comfort of the patient can be influenced.

Second embodiment

As shown in fig. 5, a second end cap 13 is fixed to the first end cap 10, the second end cap 13 surrounds the packing member 11 with a space between the second end cap 13 and the packing member 11, and a second fitting cavity 14 for fitting with an infusion catheter or a drainage catheter adapter is formed between the first end cap 10 and the packing member 11 and the second end cap 13. Preferably, a step 10a is provided at the other end of the first end cap 10, and the packing member 11 and the second end cap 13 are fixed to the step 10a, respectively. In this embodiment, since the second end cap 13 surrounds the sealing member 11, the sealing member 11 can be regarded as a plunger structure, and when the second end cap 13 is sleeved on the outer circumferential surface of the infusion catheter or the connector of the drainage catheter, the sealing member 11 is matched with the port on the connector, so that a sealing effect is formed on the port on the connector, and the channel of the connector is further protected from being polluted. The packing member 11 is integrally formed with the step 10a, and the second end cap 13 is integrally formed with the step 10 a.

As shown in fig. 6, in a modification of fig. 5, a step 10a is provided at the other end of the first end cap 10, a mounting hole 10b is provided on the step 10a, the sealing member 11 is engaged with the mounting hole 10b, and the second end cap 13 is fixed to the step 10 a.

The rest of the structure of this embodiment is the same as that of the first embodiment, and will not be described here again.

Third embodiment

As shown in fig. 7, one end of the second end cap 13 is fixed to the first end cap 10 and the packing member 11, respectively, and a second fitting cavity 14 for fitting with an infusion catheter or a drainage catheter adapter is formed between the packing member 11 and the second end cap 13. In this embodiment, the second end cap 13 surrounds the packing member 11, and the second end cap 13 forms a package for the packing member 11. The rest of the structure of this embodiment is the same as that of the second embodiment, and will not be described here again.

For any of the above multifunctional aseptic caps, the following products can be formed

(a) The pre-flush flusher comprises a pre-flush flusher body A and further comprises the multifunctional sterile cap according to any one of the embodiments, wherein the first end cap 10 of the multifunctional sterile cap is connected with the pre-flush flusher body A. The pre-flush syringe body a preferably employs a pre-flush syringe.

(b) The infusion catheter or the drainage catheter comprises an infusion catheter or a drainage catheter body and further comprises the multifunctional sterile cap according to any one of the embodiments, and a connector of the infusion catheter or the drainage catheter is connected with a second end cap 13 of the multifunctional sterile cap. Infusion catheters preferably employ an indwelling needle as shown in figure 1.

Finally, it should be noted that: the above embodiments are merely preferred embodiments of the present utility model for illustrating the technical solution of the present utility model, but not for limiting the scope of the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions.

Claims (10)

1. The utility model provides a multi-functional aseptic cap, includes first end cap (10), and the one end of first end cap (10) has the opening and the other end is equipped with seals separating member (11), forms between sealing separating member (11) and first end cap (10) and is used for with the first cooperation cavity (12) of preshoot formula flusher complex, its characterized in that still includes:

a second end cap (13), one end of the second end cap (13) is fixed with the sealing and isolating component (11), and a second matching cavity (14) for matching with the infusion catheter or the drainage catheter joint is formed between the sealing and isolating component (11) and the second end cap (13); or alternatively

The second end cap (13) is fixed with the first end cap (10), the second end cap (13) surrounds the sealing and isolating component (11), and a second matching cavity (14) for matching with the infusion catheter or the drainage catheter connector is formed between the first end cap (10) and the sealing and isolating component (11) and between the second end cap (13); or alternatively

One end of the second end cap (13) is respectively fixed with the first end cap (10) and the sealing and isolating component (11), and a second matching cavity (14) for matching with the infusion catheter or the drainage catheter joint is formed between the sealing and isolating component (11) and the second end cap (13).

2. A multi-functional sterile cap according to claim 1, characterized in that the inner diameter of the second mating cavity (14) is larger than the inner diameter of the first mating cavity (12).

3. A multifunctional aseptic cap according to claim 1, characterized in that the other end of the first end cap (10) is provided with a step (10 a) to which the sealing member (11) and the second end cap (13) are respectively fixed.

4. A multifunctional aseptic cap according to claim 1, characterized in that the other end of the first end cap (10) is provided with a step (10 a), the step (10 a) is provided with a mounting hole (10 b), the sealing member (11) is mated with the mounting hole (10 b), and the second end cap (13) is fixed with the step (10 a).

5. A multifunctional aseptic cap according to any one of claims 1 to 4, further comprising a protective cover (15) and a sterilizing member (16) disposed in the second mating cavity (14), the protective cover (15) being connected to the other end of the second end cap (13).

6. A multifunctional aseptic cap according to any one of claims 1 to 4, characterized in that the outer wall surface of the first end cap (10) is provided with external threads and the inner wall surface of the second mating cavity (14) is provided with internal threads.

7. A multifunctional aseptic cap according to any one of claims 1 to 4, characterized in that the second end cap (13) is provided on its outer wall surface with friction increasing means (13 a) for increasing friction.

8. A multifunctional aseptic cap according to any one of claims 1 to 4, characterized in that the end of the second end cap (13) is provided with an arcuate edge (13 b) for reducing the local pressure of the patient.

9. Preshoot type flusher, comprising a preshoot type flusher body (a), characterized in that it also comprises a multifunctional aseptic cap according to any one of claims 1 to 8, the first end cap (10) of which is connected with the preshoot type flusher body (a).

10. Infusion catheter or drainage catheter comprising an infusion catheter or drainage catheter body, characterized in that it further comprises a multifunctional sterile cap according to any one of claims 1 to 8, the connector of the infusion catheter or drainage catheter being connected to the second end cap (13) of the multifunctional sterile cap.