CN213884520U

CN213884520U - Catheter maintenance device

Info

Publication number: CN213884520U
Application number: CN202022658471.5U
Authority: CN
Inventors: 彭青青; 王龙
Original assignee: Second Affiliated Hospital School of Medicine of Xian Jiaotong University
Current assignee: Second Affiliated Hospital School of Medicine of Xian Jiaotong University
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-08-06
Anticipated expiration: 2030-11-17

Abstract

The utility model relates to the technical field of medical equipment, concretely relates to catheter maintenance ware, include: the double-cavity needle tube is composed of a first injection tube and a second injection tube which are arranged in parallel, and one end of the double-cavity needle tube is respectively provided with a first injection nozzle and a second injection nozzle which are communicated with the interiors of the first injection tube and the second injection tube; the connecting tee joint is provided with a first connector, a second connector and a third connector, the first connector is communicated with the first injection nozzle through a first valve, and the second connector is communicated with the second injection nozzle through a second valve; a threaded connector in communication with the third port. The utility model discloses a institutional advancement, a plurality of devices that are related to in the operation of maintaining the pipe and needed in suction, the injection step integrate to when having improved operating efficiency, still reduced the operation degree of difficulty.

Description

Catheter maintenance device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to catheter maintenance ware.

Background

With the development of science and technology, intravenous infusion tools are also continuously updated, the current clinical infusion tools mainly comprise intravenous puncture tools such as an indwelling needle, a deep venous catheter (CVC), a peripheral central venous catheter (PICC), an infusion port and the like, and for the catheters, a professional maintenance method is also provided, namely, a 3-part curve (catheter function evaluation, flushing, sealing) is maintained on the ACL catheter. Meanwhile, with the requirement of no industrialization in wards, the indwelling needle is more and more widely applied in clinic, so that the maintenance of the indwelling needle becomes an important task of daily care, and the common prefilled flushing fluid can only complete two steps of flushing and sealing a tube in clinical application, and cannot evaluate the function of the catheter (draw back blood), so that the blood needs to be drawn back by means of an injector during the maintenance of the indwelling needle. Such an operation has several disadvantages: (1) the operation steps are complicated; (2) the front end of the injector is not provided with a screw, so that the injector cannot be tightly connected with an infusion joint and is easy to slip off during withdrawal; (3) the empty needle tube and the pre-filling tube are repeatedly connected with the infusion joint to increase the infection risk.

SUMMERY OF THE UTILITY MODEL

The utility model provides a catheter maintenance ware is integrated to a plurality of required devices in suction, the injection step that relate to in the catheter maintenance operation to when having improved operating efficiency, still reduced the operation degree of difficulty.

In order to achieve the above object, the utility model provides a following technical scheme: a catheter maintainer, comprising: the double-cavity needle tube is composed of a first injection tube and a second injection tube which are arranged in parallel, a first injection nozzle and a second injection nozzle which are communicated with the inside of the first injection tube and the inside of the second injection tube are respectively arranged at one end of the double-cavity needle tube, a first plunger piston extending in the direction far away from the first injection nozzle is matched in the first injection tube, and a second plunger piston extending in the direction far away from the second injection nozzle is matched in the second injection tube; the connecting tee joint is provided with a first connector, a second connector and a third connector, the first connector is communicated with the first injection nozzle through a first valve, and the second connector is communicated with the second injection nozzle through a second valve; a threaded connector in communication with the third port.

Preferably, the connecting tee and the double-cavity needle tube are of an integral structure, and the first valve and the second valve are respectively arranged on the first connector and the second connector of the connecting tee.

Preferably, the threaded connection port is a luer connector.

Preferably, the first injection tube and the second injection tube are arranged in a split manner and are connected in a combined manner through a fixing clamp; the fixing clamp comprises a central connecting plate, clamping grooves are respectively arranged on two opposite sides of the central connecting plate, a baffle is arranged at the same end of each clamping groove, a through hole is formed in the center of each baffle, and a vertical positioning groove is formed in the end, far away from the baffle, of the central connecting plate and corresponds to each clamping groove; the first injection tube and the second injection tube are respectively clamped in clamping grooves on two sides of the central connecting plate, the first injection nozzle and the second injection nozzle respectively penetrate through the through holes of the corresponding baffle plates, and tube handles of the first injection tube and the second injection tube are respectively embedded in the positioning grooves of the central connecting plate.

Preferably, the injection nozzle further comprises a valve assembly arranged at one end of each of the two baffles far away from the central connecting plate, the valve assembly comprises a horizontally arranged bottom plate, the top of the bottom plate is provided with a pair of vertically penetrating butt joints for respectively butting with the first injection nozzle and the second injection nozzle, the bottom of the bottom plate is provided with sliding grooves arranged along the arrangement direction of the two clamping grooves, valve plates are arranged in the sliding grooves, the centers of the bottoms of the valve plates are provided with vertically penetrating quick joints, and the quick joints are luer joints; one side of the middle part of the valve block, which corresponds to the sliding groove, is provided with an elastic positioning bulge, and the sliding groove corresponds to each butt joint port and is provided with a positioning pit respectively.

The utility model discloses beneficial effect: in the above-mentioned setting, the flush fluid is prefilled in the first injection tube, when carrying out the pipe maintenance operation, through threaded connection mouth with the third interface with keep somewhere the needle intercommunication, close first valve this moment, open the second valve, the pulling second plunger 7 is with the blood in the patient's blood vessel through keeping somewhere the needle suction to the second injection tube in, and assess the unobstructed condition of keeping somewhere the needle according to the state of returning blood, when keeping somewhere the needle and being unobstructed state, open first valve and close the second valve, bulldoze first plunger and pour into the flush fluid injection in the first injection tube into and keep somewhere needle or pipe in, thereby accomplish and maintain the operation task. This in-process need not to change the injection tube repeatedly, has shortened medical personnel's operating time and operating procedure, reduces the emergence probability of pollution problem, and the problem of unexpected disconnection of pipeline leakage can not appear in each part connection of pipeline simultaneously. The integrated three-way and double-cavity needle tube further improves the connection reliability, reduces the production and manufacturing cost and the complexity degree in the use and operation process, thereby improving the working efficiency and the reliability. In addition, the luer connector is used as a universal standard structure and can be mutually connected with various catheters or reserved needles, so that the connection reliability is ensured, and the interface compatibility is improved. The first injection tube and the second injection tube are standard injectors with the same model, and the size design of the fixing clamp is adapted to the standard injectors, so that the common standard injectors can be connected and combined to form the double-cavity needle tube, the use requirement is met, meanwhile, the manufacturing cost is further reduced, and in addition, the fixing clamp does not contact with blood and medicines of a patient at any time in the use process, so that the fixing clamp can be reused through a disinfection and sterilization procedure. The valve member is for connecting tee bend and first valve, the replacement of second valve, peg graft through the first injection mouth and the second injection mouth of butt joint mouth with two-chamber needle tubing to arbitrary one end through the extrusion valve block makes the valve block slide in the spout, because the bottom of valve block top and bottom plate is ceramic plane, reach sealed effect after pasting the reality, and thereby realize that quick interface and different butt joint mouths produce corresponding relation, the quick switching between first injection mouth and second injection mouth that the quick interface of being convenient for can be rapid, make things convenient for medical personnel one-hand operation. In addition, the valve assembly is a disposable consumable product because it is in direct contact with the blood and medication of the patient during operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic diagram of the third embodiment.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings of the present invention, and obviously, 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 efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

according to fig. 1, a catheter maintenance device comprises: the double-cavity needle tube 1 is characterized in that the double-cavity needle tube 1 is composed of a first injection tube 2 and a second injection tube 3 which are arranged in parallel, a first injection nozzle 4 and a second injection nozzle 5 which are communicated with the inside of the first injection tube 2 and the inside of the second injection tube 3 are respectively arranged at one end of the double-cavity needle tube 1, a first plunger 6 which extends in the direction far away from the first injection nozzle 4 is matched in the first injection tube 2, and a second plunger 7 which extends in the direction far away from the second injection nozzle 5 is matched in the second injection tube 3; the injection nozzle is characterized by comprising a connecting tee 8, wherein the connecting tee 8 is provided with a first connector 9, a second connector 10 and a third connector 11, the first connector 9 is communicated with the first injection nozzle 4 through a first valve 12, and the second connector 10 is communicated with the second injection nozzle 5 through a second valve 13; and a threaded connection port 14, wherein the threaded connection port 14 communicates with the third port 11.

In the above arrangement, the first syringe 2 is prefilled with the flushing fluid, when the catheter maintenance operation is performed, the third port 11 is communicated with the indwelling needle through the threaded connection port 14, the first valve 12 is closed, the second valve 13 is opened, the second plunger 7 is pulled to draw the blood in the blood vessel of the patient into the second syringe 3 through the indwelling needle, the unobstructed condition of the indwelling needle is evaluated according to the blood return state, when the indwelling needle is in the unobstructed state, the first valve 12 is opened to close the second valve 13, and the first plunger 6 is pushed to inject the flushing fluid in the first syringe 2 into the indwelling needle or the catheter, so that the maintenance task is completed. This in-process need not to change the injection tube repeatedly, has shortened medical personnel's operating time and operating procedure, reduces the emergence probability of pollution problem, and the problem of unexpected disconnection of pipeline leakage can not appear in each part connection of pipeline simultaneously.

Example two:

the connecting tee 8 and the double-cavity needle tube 1 are of an integral structure, and the first valve 12 and the second valve 13 are respectively arranged on the first interface 9 and the second interface 10 of the connecting tee 8. The threaded connecting port 14 is a luer connector.

Through this setting, the tee bend of integration and two-chamber needle tubing 1 have further improved the connection reliability, have still reduced the production cost of manufacture simultaneously to and the loaded down with trivial details degree in the use operation process, thereby improve work efficiency and reliability. In addition, the luer connector is used as a universal standard structure and can be mutually connected with various catheters or reserved needles, so that the connection reliability is ensured, and the interface compatibility is improved.

Example three:

according to the illustration of fig. 2, the first injection tube 2 and the second injection tube 3 are arranged separately and are combined and connected by a fixing clamp; the fixing clamp comprises a central connecting plate 16, clamping grooves 15 are respectively arranged on two opposite sides of the central connecting plate 16, a baffle plate 17 is arranged at the same end of each clamping groove 15, a through hole is arranged in the center of each baffle plate 17, and a vertical positioning groove 19 is arranged at one end of the central connecting plate 16, which is far away from the baffle plate 17, and corresponds to each clamping groove 15; the first injection tube 2 and the second injection tube 3 are respectively clamped in clamping grooves 15 on two sides of the central connecting plate 16, the first injection nozzle 4 and the second injection nozzle 5 respectively penetrate through the through holes of the corresponding baffle plates 17, and tube handles 20 of the first injection tube 2 and the second injection tube 3 are respectively embedded in the positioning grooves 19 of the central connecting plate 16.

In the above arrangement, the first injection tube 2 and the second injection tube 3 are standard syringes of the same type, and the size design of the fixing clip is adapted to the standard syringes, so that the common standard syringes can be connected and combined to form the double-cavity needle tube 1, the use requirement is met, and meanwhile, the manufacturing cost is further reduced.

Example four:

the injection nozzle is characterized by further comprising valve assemblies 21 arranged at one ends of the two baffles 17 far away from the central connecting plate 16, each valve assembly 21 comprises a bottom plate 22 which is horizontally arranged, the top of each bottom plate 22 is provided with a pair of vertically-penetrating butt joints 23 which are used for butt joint with the first injection nozzle 4 and the second injection nozzle 5 respectively, the bottom of each bottom plate 22 is provided with sliding grooves 24 which are arranged along the arrangement direction of the two clamping grooves 15, valve plates 25 are arranged in the sliding grooves 24, the centers of the bottoms of the valve plates 25 are provided with vertically-penetrating quick joints 26, and the quick joints 26 are luer joints; one side of the middle part of the valve plate 25 corresponding to the sliding groove 24 is provided with an elastic positioning bulge, and the sliding groove 24 corresponding to each of the interfaces 23 is provided with a positioning pit.

In the above-mentioned setting, valve member 21 is for connecting tee bend 8 and first valve 12, the replacement of second valve 13, when pegging graft through interface 23 and two-chamber needle tubing 1's first injection mouth 4 and second injection mouth 5, and make valve block 25 slide in spout 24 through the arbitrary one end of extrusion valve block 25, because the bottom of valve block top and bottom plate is ceramic plane, reach sealed effect after pasting the reality, and thereby realize that quick interface 26 produces corresponding relation with the different interface, be convenient for quick interface 26 can be rapid the quick switching between first injection mouth and second injection mouth, make things convenient for medical personnel one-hand operation. In addition, the valve assembly is a disposable consumable product because it is in direct contact with the blood and medication of the patient during operation.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A catheter maintainer, comprising:

the double-cavity needle tube is composed of a first injection tube and a second injection tube which are arranged in parallel, a first injection nozzle and a second injection nozzle which are communicated with the inside of the first injection tube and the inside of the second injection tube are respectively arranged at one end of the double-cavity needle tube, a first plunger piston extending in the direction far away from the first injection nozzle is matched in the first injection tube, and a second plunger piston extending in the direction far away from the second injection nozzle is matched in the second injection tube;

the connecting tee joint is provided with a first connector, a second connector and a third connector, the first connector is communicated with the first injection nozzle through a first valve, and the second connector is communicated with the second injection nozzle through a second valve;

a threaded connector in communication with the third port.

2. The catheter maintainer of claim 1, wherein: the connecting tee joint and the double-cavity needle tube are of an integral structure, and the first valve and the second valve are respectively arranged on the first connector and the second connector of the connecting tee joint.

3. The catheter maintainer of claim 2, wherein: the threaded connecting port is a luer connector.

4. The catheter maintainer of claim 1, wherein: the first injection tube and the second injection tube are arranged in a split manner and are connected in a combined manner through a fixing clamp; the fixing clamp comprises a central connecting plate, clamping grooves are respectively arranged on two opposite sides of the central connecting plate, a baffle is arranged at the same end of each clamping groove, a through hole is formed in the center of each baffle, and a vertical positioning groove is formed in the end, far away from the baffle, of the central connecting plate and corresponds to each clamping groove; the first injection tube and the second injection tube are respectively clamped in clamping grooves on two sides of the central connecting plate, the first injection nozzle and the second injection nozzle respectively penetrate through the through holes of the corresponding baffle plates, and tube handles of the first injection tube and the second injection tube are respectively embedded in the positioning grooves of the central connecting plate.

5. The catheter maintainer of claim 4, wherein: the valve assembly comprises a bottom plate which is horizontally arranged, a pair of vertically-penetrating butt joints are arranged at the top of the bottom plate and used for being in butt joint with the first injection nozzle and the second injection nozzle respectively, sliding grooves which are arranged along the arrangement direction of the two clamping grooves are formed in the bottom of the bottom plate, a valve plate is arranged in each sliding groove, a vertically-penetrating quick connector is arranged in the center of the bottom of the valve plate, and each quick connector is a luer connector; one side of the middle part of the valve block, which corresponds to the sliding groove, is provided with an elastic positioning bulge, and the sliding groove corresponds to each butt joint port and is provided with a positioning pit respectively.