CN217311410U - Disposable bacteriostatic super-smooth medical indwelling catheter - Google Patents

Abstract

The utility model discloses a disposable bacteriostatic ultra-smooth medical indwelling catheter in the technical field of medical appliances, which comprises an infusion joint, a heparin cap, a catheter body and a needle seat, wherein the heparin cap is in threaded connection with the input end of the infusion joint, the catheter body is fixedly arranged at the output end of the infusion joint, the needle seat is fixedly arranged at the output end of the catheter body, the disposable bacteriostatic ultra-smooth medical indwelling catheter has reasonable structural design, the mounting head is connected with an external infusion device to avoid the direct contact between the heparin cap and the injector, the mounting head is screwed to drive an insertion tube to penetrate into an isolation film, so that a communication state is formed between the mounting head, the heparin cap and the infusion joint, bacteria are prevented from flowing into the catheter body through the infusion joint, and the infusion safety of the catheter body is effectively ensured, ensuring that the therapeutic effect of the patient is not affected by external factors.

Description

Disposable bacteriostatic super-smooth medical indwelling catheter

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a disposable antibacterial ultra-smooth medical indwelling catheter.

Background

The venous indwelling needle is a main infusion mode in the prior clinical technology, can effectively help patients to reduce the pain caused by repeated venipuncture, and effectively reduces the workload of medical staff in actual use.

When the intravenous indwelling needle is used, because the joint of the heparin cap is usually exposed, and the connection process between the external infusion apparatus and the heparin cap is easy, bacteria on the surface of the heparin cap easily flow into the catheter, so that the safety of infusion is affected, and the treatment effect of a patient is affected, and therefore, the disposable antibacterial ultra-smooth medical indwelling catheter is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical catheter of keeping somewhere of antibacterial super-lubricity of disposable to having proposed in solving above-mentioned background art because the joint department of heparin cap often is the exposed formula, and the connection process between outside transfusion system and the heparin cap, then the problem in the bacterium inflow to the pipe on easy heparin cap surface.

In order to achieve the above object, the utility model provides a following technical scheme: the medical indwelling catheter comprises an infusion joint, a heparin cap, a catheter body and a needle seat, wherein the heparin cap is in threaded connection with an input end of the infusion joint, the catheter body is fixedly installed at an output end of the infusion joint, the needle seat is fixedly installed at an output end of the catheter body, an output end of the infusion joint is fixedly connected with a connector, the connector is connected with the catheter body, an infusion cavity is formed in the infusion joint, a fixing seat is fixedly connected to the inner side wall of the infusion cavity, an isolating membrane is arranged in the fixing seat, an installing head is in threaded connection with the inner part of the heparin cap, a protecting sleeve is in threaded connection with the connecting end of the heparin cap and positioned on the outer side wall of the installing head, an insertion tube is integrally formed in the connecting end of the installing head and positioned in the heparin cap, the cannula is communicated with the mounting head, the input end of the needle seat is fixedly connected with a Y interface, the Y interface is connected with the catheter body, and the output end of the needle seat is inserted with a steel needle.

Preferably, the protective sleeve and the inner side wall of the heparin cap are all provided with a sealing ring in a circle.

Preferably, a clamp is clamped on the outer side wall of the insertion tube.

Preferably, the top of the needle seat is fixedly connected with a needle wing, and the shape of the needle wing is a semi-elliptical shape.

Preferably, the front side wall and the rear side wall of the needle wing are respectively provided with a convex block from top to bottom, and the convex blocks are made of silica gel materials.

Preferably, a needle cap is sleeved on the outer side wall of the steel needle, and the needle cap is connected with the connecting end of the needle seat.

Compared with the prior art, the beneficial effects of the utility model are that:

the disposable bacteriostatic super-smooth medical indwelling catheter is characterized in that the mounting head and the protective sleeve which can be freely screwed are arranged in the heparin cap, and the fixed seat and the isolating membrane are arranged in the infusion joint, the input end of the heparin cap is isolated from the external environment through the protective sleeve, bacteria in the environment are prevented from being attached to the surface of the heparin cap, meanwhile, the installation head is connected with an external infusion apparatus to avoid direct contact between the heparin cap and the injector, the installation head is screwed to drive the insertion tube to penetrate into the isolation membrane, thereby leading the mounting head, the heparin cap and the transfusion connector to form a communication state, ensuring the sealing effect of the transfusion connector in the using process, avoiding bacteria from flowing into the catheter body through the transfusion connector, thereby effectively ensuring the transfusion safety of the catheter body and ensuring that the treatment effect of the patient is not influenced by external factors.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the infusion joint of the present invention;

fig. 3 is a schematic view of the internal structure of the heparin cap of the present invention.

In the figure: 1. an infusion connector; 11. a connecting port; 12. a transfusion cavity; 13. a fixed seat; 14. an isolation film; 2. a heparin cap; 21. a protective sleeve; 22. a mounting head; 23. inserting a tube; 3. a catheter body; 31. a clip; 4. a needle seat; 41. a Y interface; 42. a needle wing; 43. a bump; 44. a steel needle; 45. a needle cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a disposable bacteriostatic ultra-smooth medical indwelling catheter, which avoids bacteria from flowing into a catheter body 3 through an infusion joint 1, effectively ensures the infusion safety of the catheter body 3, ensures that the treatment effect of a patient is not affected by external factors, and please refer to fig. 1-3, comprising an infusion joint 1, a heparin cap 2, a catheter body 3 and a needle seat 4;

the utility model discloses in, infusion joint 1's output fixedly connected with connector 11, and be connected between connector 11 and the pipe body 3, infusion chamber 12 has been seted up to infusion joint 1's inside, infusion chamber 12's inside wall fixedly connected with fixing base 13, the inside of fixing base 13 is provided with barrier film 14, infusion joint 1 is used for being connected between connector 11 and heparin cap 2, connector 11 is used for being connected between infusion joint 1 and the pipe body 3, infusion chamber 12 is used for providing the space to the transport of liquid medicine, utilize its inner structure to improve the transport efficiency of liquid medicine simultaneously, fixing base 13 is used for connecting barrier film 14, barrier film 14 is used for sealing treatment to the inner space of infusion chamber 12, avoid outside bacterium to flow into pipe body 3 through infusion joint 1, ensure the safety in utilization of this product;

in the utility model, the inner thread of the heparin cap 2 is connected with a mounting head 22, the outer side wall of the connecting end of the heparin cap 2 and the mounting head 22 is connected with a protective sleeve 21, the connecting end of the mounting head 22 and the inner part of the heparin cap 2 are integrally formed with an insertion pipe 23, the cannula 23 is communicated with the mounting head 22, the heparin cap 2 is connected with the input end of the transfusion connector 1 in a threaded manner, the heparin cap 2 is used for patients to perform transfusion and injection of medicines, at the same time, heparin sodium is injected to prevent blood from flowing back and prevent coagulation, the mounting head 22 is used for connecting with the connecting end of an external infusion apparatus, so as to input the medical liquid into the insertion tube 23, the protective sleeve 21 is used for isolating the use of the mounting head 22, so as to improve the use safety of the mounting head 22, the insertion tube 23 is used for puncturing the isolation film 14 in the fixed seat 13, so as to discharge the input medical liquid into the catheter body 3;

in the utility model, the catheter body 3 is fixedly arranged at the output end of the infusion joint 1, specifically, the catheter body 3 is fixedly connected at the output end of the infusion joint 1 through the connector 11, and the catheter body 3 is used for conveying the liquid medicine;

the utility model discloses in, the input fixedly connected with Y interface 41 of needle file 4, and be connected between Y interface 41 and the pipe body 3, the output of needle file 4 is pegged graft and is had steel needle 44, 4 fixed mounting of needle file are at the output of pipe body 3, it is concrete, needle file 4 passes through 41 fixed connection of Y interface at the output of pipe body 3, needle file 4 is used for connecting steel needle 44, Y interface 41 is used for communicateing between pipe body 3 and the needle file 4 and handles, thereby input the liquid medicine in the pipe body 3, steel needle 44 is used for inserting to patient's vein, thereby send into the liquid medicine of inputing in the needle file 4 to patient's vein through steel needle 44.

The utility model discloses in, in order to improve the connection leakproofness between lag 21 and the heparin cap 2, lag 21 all is provided with the sealing washer with inside wall a week of heparin cap 2.

In the utility model, in order to control the infusion speed of the liquid medicine in the catheter body 3, the clamp 31 is clamped on the outer side wall of the insertion tube 23.

The utility model discloses in, in order to optimize medical personnel to steel needle 44's in-service use, improve its convenience of carrying out the infusion to the patient, the top fixedly connected with needle wing 42 of needle file 4, and the shape of needle wing 42 is half oval shape.

The utility model discloses in, in order to improve the frictional force of needle wing 42 at the in-process of snatching to make things convenient for medical personnel to use needle wing 42, both sides wall top-down all is provided with lug 43 around needle wing 42, and lug 43 adopts the silica gel material to make.

The utility model discloses in, in order to protect the processing to steel needle 44's use, needle cap 45 has been cup jointed to steel needle 44's lateral wall, and is connected between the link of needle cap 45 and needle file 4.

When in specific use, a medical worker firstly takes off the protective sleeve 21 on the heparin cap 2, then connects an external infusion apparatus with the mounting head 22, then screws the mounting head 22 clockwise to drive the cannula 23 inside the mounting head to horizontally move into the infusion connector 1 until the output end of the cannula 23 pierces the isolating membrane 14 in the fixing seat 13, so that a communication state is formed between the cannula 23 and the infusion cavity 12, at the moment, the use position of the clip 31 is adjusted, so that the liquid medicine can circulate inside the catheter body 3, the medical worker takes out the needle cap 45 on the steel needle 44, along with the continuous input of the liquid medicine, the liquid medicine is input into the needle seat 4 through the Y interface 41, then the input liquid medicine is injected into the steel needle 44 through the needle seat 4, when the medical worker sees that the liquid medicine is ejected from the steel needle 44, the working position of the clip 31 is adjusted, thereby closing the flow state of the catheter body 3, and at this time, the medical staff holds the needle wing 42 with the hand, slowly inserts the steel needle 44 into the vein of the patient, and adjusts the operating position of the clip 31 again, so that the medical fluid is slowly infused into the vein of the patient through the steel needle 44.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments can be used in any combination that is not specifically enumerated in this specification for the sake of brevity and resource savings, provided that no structural conflict exists. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (6)

1. The medical indwelling catheter of antibacterial super-lubricity of disposable, its characterized in that: including infusion joint (1), heparin cap (2), pipe body (3) and needle file (4), heparin cap (2) threaded connection is in the input that infusion connects (1), pipe body (3) fixed mounting be in the output that infusion connects (1), needle file (4) fixed mounting be in the output of pipe body (3), the output fixedly connected with connector (11) that the infusion connects (1), just connector (11) with be connected between pipe body (3), infusion chamber (12) have been seted up to the inside that infusion connects (1), the inside wall fixedly connected with fixing base (13) of infusion chamber (12), the inside of fixing base (13) is provided with barrier film (14), the internal thread connection of heparin cap (2) has installation head (22), the link of heparin cap (2) just is located the lateral wall threaded connection of installation head (22) has lag (21) ) The connecting end of the mounting head (22) is positioned in the heparin cap (2), an insertion tube (23) is integrally formed inside the heparin cap (2), the insertion tube (23) is communicated with the mounting head (22), the input end of the needle seat (4) is fixedly connected with a Y interface (41), the Y interface (41) is connected with the catheter body (3), and the output end of the needle seat (4) is connected with a steel needle (44) in an inserting mode.

2. The disposable bacteriostatic ultra-smooth medical indwelling catheter according to claim 1, wherein: the protection cover (21) with the inside wall a week of heparin cap (2) all is provided with the sealing washer.

3. The disposable bacteriostatic ultra-smooth medical indwelling catheter according to claim 1, wherein: the outer side wall of the insertion pipe (23) is clamped with a clamp (31).

4. The disposable bacteriostatic ultra-smooth medical indwelling catheter according to claim 1, wherein: the top of needle file (4) is fixedly connected with needle wing (42), just the shape of needle wing (42) is half oval-shaped.

5. The disposable bacteriostatic ultra-smooth medical indwelling catheter according to claim 4, wherein: the front side wall and the rear side wall of the needle wing (42) are respectively provided with a convex block (43) from top to bottom, and the convex blocks (43) are made of silica gel materials.

6. The disposable bacteriostatic ultra-smooth medical indwelling catheter according to claim 1, wherein: the outer side wall of the steel needle (44) is sleeved with a needle cap (45), and the needle cap (45) is connected with the connecting end of the needle seat (4).

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