CN205948162U - Vascular access flushing device - Google Patents

Abstract

The utility model discloses a blood vessel access flushing device, which relates to the field of medical equipment and solves the problem that the existing flushing device is not safe enough to use. The technical scheme adopted in the utility model is: a vascular access flushing device, including a pumping device, a puncturer and a flushing pipe joint, the inlet of the pumping device is connected to the puncturer through a catheter, and the outlet of the pumping device is connected to the flushing pipe joint through a catheter. A switch is provided on the catheter between the injection device and the trocar. The flushing method of the vascular access is as follows: first insert the trocar into the infusion soft bag, and exhaust the gas in the flushing device; then connect the flushing tube joint to the patient's joint, and perform flushing, which can be performed multiple times as required. The vascular access flushing device and flushing method realize closed and needle-free flushing, which not only ensures the safety of medical staff but also the safety of patients. The flushing joint and the suction device are provided with an infusion joint, which can be used not only for drug administration but also for blood sample collection, and the operation is safe and convenient.

Description

Vascular Access Irrigation Device

technical field

The utility model relates to the technical field of medical equipment, in particular to a safe and airtight device for flushing blood vessel passages.

Background technique

For patients with central venous catheters, the central venous catheters are prone to blockage, so it is necessary to regularly flush the central venous catheters with normal saline or anticoagulants during the nursing work of patients with central venous catheters. The existing flushing method is to inject directly with a syringe. Since it needs to suck and inject physiological saline or anticoagulant for many times, the operation is cumbersome, and the operation is exposed to the outside for many times, and there are potential pollution safety hazards.

The patent document with authorized notification number CN 204655607 U discloses a syringe and a central venous catheter flushing device. The nipple of the syringe is connected to a tee, one end of the tee is a central venous catheter connector, and the other end of the tee is connected to a puncturer. When in use, insert the puncturer into the saline bag, adjust the three-way valve, exhaust the gas in the pipeline, connect the central venous catheter connector to the patient's central venous catheter, adjust the three-way valve, and pump out the normal saline first. into the syringe, and then bolus to flush the central venous catheter.

The above-mentioned central venous catheter flushing device has only one central venous catheter connector, and for patients with double-lumen or more than double-lumen connectors, a set of central venous catheter flushing device can only be connected to one connector, which requires a corresponding number of A central venous catheter flushing device has the problem of inconvenient use. In addition, the central venous catheter flushing device is not safe enough. Due to the many corners of the syringe and the three-way valve, in clinical use, the central venous catheter flushing device is easily pressed by the patient, resulting in crush injury of the patient or abnormality of the three-way valve. Unscrewed, or other than the syringe being crushed.

Utility model content

The utility model provides a blood vessel access flushing device, which solves the problem that the existing tube flushing device is not safe enough to use.

The technical scheme adopted by the utility model to solve its technical problems is: a vascular access flushing device, comprising a pumping device, a puncturer and a flushing pipe joint, the two ends of the pumping device are respectively provided with an inlet and an outlet, and the inlet of the pumping device The piercer is connected through a conduit, the outlet of the suction device is connected with the flushing pipe joint through a conduit, and a switch that can block the conduit is arranged on the conduit between the inlet of the suction device and the piercer.

Further, the pumping device includes a piston cylinder, a piston and a piston rod installed in the piston cylinder, and the two sides of the bottom of the piston cylinder are respectively provided with an inlet and an outlet.

Further, on the piston, at least one limit rod is provided on the side connected to the piston rod, a bayonet is provided on the limit rod, and a clamp hole is provided on the top of the piston cylinder; when the piston is pushed to the bottom of the piston cylinder, the limit rod The bayonet of the piston cylinder snaps into the hole of the piston cylinder. The bayonet of the limit rod is snapped into the snap hole of the piston cylinder to prevent the piston from moving and ensure safe use. When needed, the bayonet of the limit rod is squeezed out of the hole of the piston cylinder, and the piston can be pulled.

Further, a soft cover is provided on the outside of the pumping device. The soft cover can further isolate the medical staff's hands and the suction device for enhanced safety. At the same time, the soft cover wraps the outside of the pumping device to protect the pumping device, and even if the patient presses the pumping device, it can reduce the discomfort caused to the patient.

For example, the pumping device is a "venous/arterial blood management protection line" with a model number of 48-VMP160. Wherein, the "venous/arterial blood management protection circuit" is an existing "venous/arterial blood management protection circuit", and its registration number is: National Food and Drug Administration (Jin) Zi 2012 No. 3661287.

Further, the outlet of the pumping device is connected to a conduit, the other end of the conduit is connected to at least two flushing connectors, and switches are respectively set on each flushing connector.

Further, an infusion joint is provided on the conduit between the flushing joint and the injection device. When it is necessary to administer medicine or take a blood sample, it can be realized through the infusion connector. Preferably, the infusion connector is a needle-free infusion connector. This can realize needle-free operation and improve the safety of use.

Further: the switch is a choke clip. The flow stop clamp blocks the catheter by buckling. Even if the patient presses the stop clip, it is not easy to open the pipeline, ensuring the safety of use.

The utility model also provides a vascular access flushing method, which uses any of the above-mentioned vascular access flushing devices to flush the tube, including the following steps:

A. Insert the puncturer into the infusion soft bag, adjust the switch and operate the suction device to exhaust the gas in the vascular access flushing device;

B. Turn off the switch between the injection device and the puncture device, connect the flushing tube connector to the patient's vascular access connector, adjust so that only one pipeline between the flushing tube connector and the injection device remains unblocked, and then pass through the injection device perform flushing;

C. After a single flushing of the tube, keep the catheter on the outlet side of the pumping device blocked, turn on the switch between the pumping device and the puncturer, and pump the liquid in the infusion soft bag into the pumping device;

D. Repeat steps B and C.

The beneficial effects of the utility model are: the vascular access flushing device has a simple structure, and can perform real-time flushing according to requirements, not only suitable for flushing the central venous catheter joint, but also for lumbar pool drainage, subcutaneous drainage, wound cavity drainage, etc. The flushing tube after surgical operation or postoperative drainage; the vascular access flushing method realizes closed and needle-free, which not only ensures the safety of medical staff, but also the safety of patients. An infusion joint is arranged on the catheter between the flushing joint and the pumping device, and the infusion joint can not only be used for drug administration, but also can be used for collecting blood samples, and the operation is safe and convenient.

Description of drawings

Fig. 1 is a structural schematic diagram of a vascular access flushing device of the present invention.

Parts, parts and numbers in the figure: trocar 10, needle guard cap 11, flow stop clip 20, piston cylinder 31, piston 32, piston rod 33, limit rod 34, bayonet 35, first flushing pipe joint 41, The second flushing connector 42 and the infusion connector 50 .

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, the vascular access flushing device of the present utility model comprises a pumping device, a puncture device 10 and a flushing pipe joint, the two ends of the pumping device are respectively provided with an inlet and an outlet, and the inlet of the pumping device is connected to the puncture device through a catheter. A needle guard 11 is provided on the outside of the trocar 10, the outlet of the pumping device is connected to the flushing connector through a catheter, and a switch that can block the catheter is arranged on the catheter between the inlet of the pumping device and the trocar 10.

The suction device draws liquid into the suction device from the inlet and presses it out from the outlet. Specifically, the pumping device includes a piston cylinder 31, a piston 32 and a piston rod 33 installed in the piston cylinder 31, and the two sides of the bottom of the piston cylinder 31 are respectively provided with an inlet and an outlet. In order to facilitate the observation of changes in the liquid volume in the pumping device, the piston cylinder 31 is preferably made of a transparent material. The outer edges of the pumping device are preferably set in a circular arc shape to reduce edges and corners. Volumetric scales are set on the piston cylinder 31 .

In order to prevent the piston 32 from sliding freely in the piston cylinder 31 and ensure safe use, at least one stop rod 34 is set on the piston 32 on the side connected to the piston rod 33, the stop rod 34 is provided with a bayonet 35, and the piston cylinder 31 The top is provided with an adapted clamping hole; when the piston 32 is pushed to the bottom of the piston cylinder 31, under the elastic action of the limiting rod 34 itself, the bayonet 35 of the limiting rod 34 is clamped into the clamping hole of the piston cylinder 31. When the piston rod 33 needs to be pulled apart, the bayonet 35 of the limit rod 34 is squeezed out of the hole of the piston cylinder 31 to pull the piston 32 . One or two limit rods 34 can be arranged on the piston 32 .

In order to further isolate the hands of the medical staff and the pumping device and enhance safety, a soft cover is provided on the outside of the pumping device. At the same time, the soft cover wraps the pumping device, even if the patient presses the pumping device, it can reduce the discomfort caused by the pumping device to the patient, and the soft cover can also protect the pumping device. For example, the existing "venous/arterial blood management protection line" can be used for the pumping device, the model is: 48-VMP160, and the registration number is: National Food and Drug Administration (Jin) Zi 2012 No. 3661287. The pumping device selects the existing adult-type or child-type "venous/arterial blood management protection pipeline".

The vascular access flushing method using the above-mentioned vascular access flushing device is as follows: first insert the puncture device 10 into the soft infusion bag, adjust the switch and operate the pumping device to exhaust the gas in the vascular access flushing device; then close the pumping device and the puncture device 10, connect the flushing tube joint with the patient's joint, open the switch between the flushing tube joint and the pumping device, and then flush the tube through the pumping device. After the single flushing is completed, close the switch between the flushing joint and the pumping device, and repeat the above steps as required. Safe and closed medical flushing method The entire flushing operation process is airtight, and there is no sharp instrument piercing, which ensures the safety of flushing.

When the outlet of the pumping device is connected to a flush fitting through a conduit, a fitting can be flushed. In order to flush tubes for patients with connectors with double lumens or more, the outlet of the pumping device is connected to one end of the catheter, and the other end of the catheter is connected to at least two flushing connectors, and switches are respectively set on each flushing connector. For example, as shown in FIG. 1 , a first flushing tube joint 41 and a second flushing tube joint 42 are respectively provided, and switches are respectively provided on the first flushing tube joint 41 and the second flushing tube joint 42 . The above-mentioned switch can be a valve, such as a check valve. The above-mentioned switch can also be used as the stop clip 20, which blocks the catheter by buckling. Even if the patient presses the stop clip 20, it is not easy to open the pipeline, ensuring the safety of use.

In order to facilitate drug administration and blood sampling, an infusion connector 50 is provided on the conduit between the flushing connector and the pumping device. When it is necessary to administer medicine or take a blood sample, it can be realized through the infusion connector 50 . Preferably, the infusion connector 50 is a needle-free infusion connector 50, which can realize needle-free operation and improve the safety of use.

The vascular access flushing method through the above vascular access flushing device is as follows: first insert the puncture device 10 into the soft infusion bag, adjust the switch and operate the pumping device to exhaust the gas in the vascular access flushing device; then close the pumping device and the puncture device 10, connect the first flushing tube joint 41 and the second flushing tube joint 42 with the patient's joint, adjust so that only one flushing tube joint and the pipeline between the suction device remain unblocked, and then start to pump The injecting device flushes the tube; after a single flushing of the tube is completed, close the two switches on the outlet side of the injecting device, open the switch between the injecting device and the piercer 10, and draw the liquid in the infusion soft bag into the injecting device; Finally repeat steps B and C as needed.

The vascular access flushing device has a simple structure and can flush the tube in real time as required; the vascular access flushing method realizes closed and needle-free operation, which not only ensures the safety of medical staff but also the safety of patients. An infusion connector 50 is arranged on the catheter between the flushing connector and the pumping device. The infusion connector 50 can not only be used for drug administration, but also can be used for collecting blood samples, and the operation is safe and convenient.

Claims (7)

1. Vascular access flushing device is characterized in that: comprise pumping device, puncture device (10) and flush pipe connector, described pumping device comprises piston cylinder (31) and the piston ( 32) and piston rod (33); on the piston (32), at least one stop rod (34) is set on the side connecting the piston rod (33), and bayonet (35) is set on the stop rod (34), and the piston cylinder The top of (31) is provided with clamping holes; when the piston (32) is pushed to the bottom of the piston cylinder (31), the bayonet (35) of the limit rod (34) is stuck in the clamping hole of the piston cylinder (31); the piston cylinder ( 31) The both sides of the bottom are respectively provided with an inlet and an outlet, the inlet of the injection device is connected to the piercer (10) through a conduit, the outlet of the injection device is connected to the flushing pipe joint through a conduit, the inlet of the injection device and the piercer A switch that can block the conduit is arranged on the conduit between the devices (10). 2. The vascular access flushing device according to claim 1, wherein a soft cover is provided on the outside of the suction device. 3. The vascular access flushing device according to claim 1, characterized in that: the pumping device is a "venous/arterial blood management protection circuit", the model is: 48-VMP160. 4. The vascular access flushing device according to claim 1, characterized in that: the outlet of the pumping device is connected to a catheter, the other end of the catheter is connected to at least two flushing connectors, and switches are respectively set on each flushing connector. 5. The vascular access flushing device according to claim 1, characterized in that: an infusion joint (50) is provided on the conduit between the flushing joint and the suction device. 6. The vascular access flushing device according to claim 5, characterized in that: the infusion connector (50) is a needle-free infusion connector. 7. The vascular access flushing device according to claim 1 or 4, characterized in that: the switch stop clamp (20).