CN209827805U - Tube flushing and sealing device for venous indwelling needle - Google Patents

Abstract

The utility model discloses a flushing and sealing device for intravenous indwelling needles, which comprises an infusion tube, a filter and a regulating valve arranged on the infusion tube, and a syringe arranged on the infusion tube. The syringe is located between the filter and the regulating valve, and the syringe is equipped with a standard lock solution for sealing and flushing the tube. The nipple end of the syringe communicates with the infusion tube, and the nipple end of the syringe A cut-off valve is provided at the connection with the infusion tube, and the syringe is used for flushing the infusion tube when the intravenous indwelling needle is used for infusion, and sealing the infusion tube after the infusion is completed. The flushing and sealing device for intravenous indwelling needles proposed by the utility model can not only reduce the operation steps of flushing and sealing to reduce the risk of infection, but also reduce the workload and treatment costs of medical staff, and the device has a simple structure, The cost is low and the operation is convenient.

Description

Tube flushing and sealing device for venous indwelling needle

technical field

The utility model relates to the technical field of medical devices, in particular to a flushing and sealing device for intravenous indwelling needles.

Background technique

The existing method of flushing the indwelling needle for intravenous infusion is to disinfect the positive pressure joint or heparin cap of the indwelling intravenous infusion before the infusion, draw out 5mL of tube sealing liquid with a syringe and connect it to the positive pressure joint or the heparin cap joint, and then inject 5mL of the indwelling fluid into the positive pressure joint or the heparin cap joint after the infusion. Injection of lock solution. The existing method of preventing intravenous indwelling needle blockage is to extract 5 mL of sealing solution with a syringe after the infusion, sterilize the positive pressure joint or heparin cap of the intravenous indwelling needle, and draw out 5 mL of sealing liquid with a syringe. Connect the tube fluid to the positive pressure joint or heparin cap interface, and inject 5mL of tube lock solution into the indwelling needle after drawing back and seeing the blood return.

The lock solution used in the above method is usually prepared by the nurse or directly purchased in a well-packaged lock solution. Among them, before using the lock solution prepared by the nurse, the mouth of the bottle of the lock solution that has been prepared must be sterilized, and then the lock solution is sucked with a syringe. It has many steps, high probability of contamination, can not prevent transfusion infection well, and increases the workload of clinical nurses at the same time. However, direct purchase of well-packed sealing solution has the problem of high price, which increases the treatment cost of patients, and both need to sterilize the connection of infusion tube and venous indwelling needle, which has the disadvantages of complicated operation.

Utility model content

The purpose of the utility model is to propose a flushing and sealing device for intravenous indwelling needles, so as to reduce the infection of intravenous infusion and the workload of nursing staff, and reduce the cost.

A flushing and sealing device for an intravenous indwelling needle, comprising an infusion tube, a filter and a regulating valve disposed on the infusion tube, and a syringe disposed on the infusion tube, the syringe positioned on the filter Between the syringe and the regulating valve, the syringe is equipped with a standard tube locking solution for sealing and flushing, the nipple end of the syringe is connected with the infusion tube, and the nipple end of the syringe is connected to the infusion tube A cut-off valve is provided at the connection of the infusion tube, and the syringe is used for flushing the infusion tube when the intravenous indwelling needle is used for infusion, and sealing the infusion tube after the infusion is completed.

The beneficial effects of the utility model are as follows: the utility model sets the syringe between the regulating valve and the filter of the infusion tube, and can pre-load the standard tube sealing liquid used for sealing and flushing the tube into the syringe, before intravenous infusion , Use part of the standard lock solution in the syringe to directly flush the tube; after the infusion, use the remaining standard lock solution in the syringe to lock the tube in a pulse manner, so not only can the operation steps of flushing and locking be reduced, so as to reduce the risk of infection, Moreover, the workload and treatment costs of medical personnel can be reduced, and the device has simple structure, low cost and convenient operation.

In addition, the flushing and sealing device for intravenous indwelling needles provided by the utility model can also have the following additional technical features:

Further, the syringe includes a cylinder and a piston handle movably connected to the upper end of the cylinder, the nipple end is arranged at the lower end of the cylinder, the upper end of the cylinder is provided with a top cover, the The top cover is provided with a plurality of through holes communicating with the outside at intervals, and the bottom end surface of the piston handle is provided with a protrusion matching the through holes.

Further, the upper end of the barrel is provided with four through holes at intervals.

Further, the barrel and the top cover are integrally formed.

Further, the cylinder body is closely attached to the side wall of the infusion tube through a bandage.

Further, the volume of the syringe is 5 milliliters.

Further, the syringe is made of plastic.

Further, the nipple end of the syringe is made of CVP material.

Further, the syringe is arranged 1 cm above the filter.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a flushing and sealing device for an intravenous indwelling needle according to an embodiment of the present invention.

Detailed ways

In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings. Several embodiments of the utility model are provided in the accompanying drawings. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions are for descriptive purposes only and do not indicate or imply the device or Elements must have certain orientations, be constructed and operate in certain orientations, and thus should not be construed as limitations on the invention.

In this utility model, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 , a flushing and sealing device for an intravenous indwelling needle proposed by an embodiment of the present invention includes an infusion tube 10 , a filter 20 , a regulating valve 30 , a syringe 40 and a stop valve 50 . Wherein, the infusion tube 10 is a known special infusion tube for intravenous indwelling needles, and the filter 20 and the regulating valve 30 can be respectively matched filters and regulating valves of known special infusion tubes for intravenous indwelling needles, which are not limited here.

A syringe 40 is provided on the infusion tube 10, and the syringe 40 is located between the filter 20 and the regulating valve 30, and standard locking solution for locking and flushing the tube is installed in the syringe 40. The syringe 40 is used for flushing the infusion tube 10 when the intravenous indwelling needle is used for infusion, and sealing the infusion tube 10 after the infusion is completed. The volume of the syringe 40 is 5 milliliters, wherein 2.5 milliliters of standard locking solution is used when flushing the tube, and the remaining 2.5 milliliters of locking solution is used when locking the tube.

Specifically, the syringe 40 includes a nipple end 41 , a cylinder body 42 and a piston handle 43 , wherein the syringe 40 in this embodiment is made of plastic, and the nipple end 41 is made of CVP material. The nipple end 41 is arranged at the lower end of the cylinder body 42, and it is connected with the infusion tube 10. A stop valve 50 is arranged between the nipple end 41 and the infusion tube 10. When the tube needs to be flushed or sealed, the stop valve 50 is opened to make the syringe The tube lock solution in 40 enters the infusion tube 10 through the teat end 41 to flush or lock the tube.

In order to improve the accuracy of operation, the nipple end 41 of the syringe 40 is set at 1 cm above the filter 20 .

The barrel body 42 is a cylindrical structure, inside which is provided a cavity for installing a standard locking fluid. The cylinder body 42 can be closely attached to the side wall of the infusion tube 10 through a bandage, and of course other fixing devices can also be used to make the cylinder body 42 close to the side wall of the infusion tube.

A top cover 421 is provided on the upper end of the cylinder body 42. The top cover 421 is a circular block, which is integrally formed with the cylinder body 42. A plurality of through holes 422 are provided on the top cover 421 for communicating with the outside world. . A piston handle 43 is arranged on the upper end of the cylinder body 42 , and the piston handle 43 is a circular block, which is movably connected with the top cover 421 of the cylinder body 42 . A plurality of protrusions 431 are provided on the bottom surface of the piston handle 43 , and the number, shape and size of the protrusions 431 are matched with the through holes 422 . In this embodiment, four circular through holes 422 are arranged symmetrically at intervals on the top cover 421 , and four cylindrical protrusions 431 are arranged on the bottom end surface of the piston handle 43 .

When the protrusion 431 of the piston handle 43 is accommodated in the through hole 422 of the top cover 421 and the shut-off valve 50 is closed, the syringe 40 is in the closed state. At this time, the standard lock solution in the syringe 40 cannot enter the infusion tube 10 . When the protrusion 431 of the piston handle 43 is separated from the through hole 422 of the top cover 421 and the shut-off valve 50 is opened, the syringe 40 is in an open state. At this time, the standard lock solution in the syringe 40 can enter the infusion tube 10 .

The method of using the flushing and sealing device for the above-mentioned venous indwelling needle is as follows: before using the venous indwelling needle for infusion, first close the regulating valve 30 on the infusion tube 10, open the shut-off valve 50 on the nipple end 41 of the syringe 40, and open the valve on the indwelling needle. The stop valve (not shown in the figure), and the protrusion 431 of the piston handle 43 is separated from the through hole 422 of the top cover of the cylinder body 42, and the standard liquid in the syringe 40 is 2.5 milliliters after the syringe is drawn with the syringe 40 and the blood is returned. Inject into the indwelling needle to flush the tube. After flushing the tube, the protrusion 431 of the piston handle 43 is accommodated in the through hole 422 of the top cover of the cylinder body 42 . If the indwelling needle blocks the tube due to lack of liquid for a long time during the infusion process, then close the indwelling needle stop valve, and the syringe 40 can be used again to directly flush the tube. After the infusion is finished, close the regulating valve 30 on the infusion tube 10, open the shut-off valve 50 of the nipple end 41 of the syringe, and separate the protrusion 431 of the piston handle 43 from the through hole 422 of the top cover of the cylinder body 42, and use the syringe 40 Pulse seal. After sealing the tube, the protrusion 431 of the piston handle 43 is accommodated in the through hole 422 of the top cover of the cylinder body 42 .

In summary, according to the catheter flushing and sealing device for intravenous indwelling needles proposed in this embodiment, by setting a syringe between the regulating valve and the filter of the infusion tube, the standard catheter locking solution used for sealing and flushing can be pre-filled. Put it into the syringe, and before the intravenous infusion, use part of the standard lock solution in the syringe to directly flush the tube; after the infusion, use the remaining standard lock solution in the syringe to lock the tube in a pulse manner, so that not only can reduce the need for flushing and locking The operation steps can reduce the risk of infection, and can reduce the workload and treatment cost of medical staff, and the device has simple structure, low cost and convenient operation.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (9)

1. a flushing and sealing device for intravenous indwelling needles, comprising an infusion tube, a filter and a regulating valve located on the infusion tube, characterized in that, it also includes a syringe located on the infusion tube, the The syringe is located between the filter and the regulating valve, the syringe is equipped with a standard lock solution for sealing and flushing the tube, the nipple end of the syringe is connected with the infusion tube, the nipple of the syringe A cut-off valve is provided at the connection between the end and the infusion tube, and the syringe is used for flushing the infusion tube when the intravenous indwelling needle is used for infusion, and sealing the infusion tube after the infusion is completed. 2. The flushing and sealing device for intravenous indwelling needles according to claim 1, wherein the syringe comprises a cylinder and a piston handle movably connected to the upper end of the cylinder, and the nipple end is arranged on the The lower end of the cylinder, the upper end of the cylinder is provided with a top cover, the top cover is provided with a plurality of through holes communicating with the outside world at intervals, and the bottom end surface of the piston handle is provided with the through holes connected to the through holes. The holes match the protrusions. 3. The tube flushing and sealing device for intravenous indwelling needles according to claim 2, characterized in that, the upper end of the cylinder body is provided with four through holes at intervals. 4. The tube flushing and sealing device for intravenous indwelling needles according to claim 2, characterized in that, the cylinder body and the top cover are integrally formed. 5 . The tube flushing and tube sealing device for intravenous indwelling needles according to claim 2 , wherein the cylinder body is closely attached to the side wall of the infusion tube through a bandage. 6 . 6. The flushing and sealing device for intravenous indwelling needles according to claim 1, wherein the volume of the syringe is 5 milliliters. 7. The flushing and sealing device for intravenous indwelling needles according to claim 1, wherein the syringe is made of plastic. 8. The flushing and sealing device for intravenous indwelling needles according to claim 1, wherein the nipple end of the syringe is made of CVP material. 9 . The flushing and sealing device for intravenous indwelling needles according to claim 1 , wherein the syringe is arranged 1 cm above the filter. 10 .