CN107684644A - It is pre- to rush formula flushing syringe infusion pump combination bag - Google Patents

Abstract

The invention discloses a pre-flush syringe infusion pump combination bag, which comprises: a syringe; a pump body; a liquid storage, the liquid storage is located in an accommodating chamber of the pump body; a filter; a first conduit and a second conduit and the third conduit, the first conduit communicates with the liquid storage, the second conduit communicates with one end of the filter, and the third conduit communicates with the other end of the filter; the three-way check valve body, the three channels of the three-way check valve body communicate with the first conduit, the second conduit, and the syringe respectively; wherein, the pre-flush syringe infusion pump combination package also includes a first passage and a second passage, and the first passage passes through the syringe, the three-way check valve body, the The first conduit and the liquid storage; the second passage passes through the liquid storage, the first conduit, the three-way check valve body, the second conduit, the filter and the third conduit in sequence. The invention prevents the clogging of the indwelling pipeline caused by thrombus after venous blood backflow through the uninterrupted supply of liquid storage, and overcomes the secondary danger caused by thrombus clogging.

Description

Pre-flushed Syringe Infusion Pump Combo Kit

technical field

The invention relates to a combination bag of a preflushing syringe infusion pump.

Background technique

With the rapid development of medical science, indwelling lines such as intravenous indwelling needles and central venous catheters have become a major tool for clinical infusion and rescue treatment. Among them, the venous indwelling needle is also called the trocar, as a replacement product of the scalp needle, it can reduce the number of blood vessel punctures, less irritation to the blood vessels, reduce fluid extravasation, is not easy to come out of the blood vessels, and reduce the psychological pressure of the patient on the infusion, and can be performed at any time Infusion therapy is beneficial to the rescue of critically ill patients, improves the efficiency of nursing work, and reduces the workload of nurses. The many advantages of indwelling needles have been more and more accepted by patients and nursing staff. Therefore, as a new nursing technology, indwelling tubes are increasingly widely used in clinical nursing work. In many hospitals, indwelling lines such as intravenous indwelling needles are used as the main tools for clinical infusion and rescue treatment.

Indwelling catheters such as intravenous catheters and central venous catheters are widely used in large and medium-sized urban hospitals in my country. In recent years, various small and medium-sized cities and grass-roots hospitals have also been used in clinical treatment one after another. The advantage of using indwelling tubes such as indwelling needles is that daily venipuncture is not required, which can not only reduce the pain caused by repeated punctures, but also facilitate the protection of blood vessels and clinical medication, and reduce the workload of nurses.

For patients with long-term intravenous infusion and multiple intravenous medications, the application and retention of indwelling lines such as intravenous catheters and central venous catheters is particularly important. Choosing the appropriate locking solution and locking method for patients can reduce the occurrence of phlebitis and maintain indwelling The patency of the pipeline prolongs the retention time, improves the work efficiency of nurses, and wins time for patient treatment and rescue.

The reasons for the blockage of the indwelling tube are relatively complicated, usually related to incomplete flushing of the indwelling tube after infusion, improper selection of the type, dosage and bolus injection speed of the lock solution, and abnormal coagulation mechanism of the patient. Therefore, the pipeline should be thoroughly flushed after the infusion, and the tube should be properly locked after each infusion. The appropriate lock solution and dosage should be selected according to the specific situation of the patient, and the injection speed should not be too fast. To prevent venous thrombosis, the longer the indwelling time, the greater the chance of venous thrombosis, and the diameter of the infusion tube is closely related to thrombosis.

Therefore, in order to prevent thrombosis, infusion tubes with small outer diameters should be selected as much as possible according to the needs of treatment, and thick, straight, and elastic veins should be punctured as much as possible. Skilled technical operations are required to insert the tubes to avoid repeated punctures at the same site and damage blood vessels. Intima, promotes thrombus formation. When using the heparin cap, it should be inserted parallel to the center to reduce particle contamination caused by repeated puncturing of the heparin cap. Strictly control the indwelling time of indwelling catheters and other indwelling lines in order to continuously improve and perfect this technology in the work. Selecting the appropriate sealing fluid is the key to determine the indwelling time of indwelling needles and other indwelling lines and reduce the occurrence of tube blockage.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the defects in the prior art that venous thrombus is easy to occur when indwelling lines such as indwelling needles and central venous catheters are used or the indwelling lines are blocked, and to provide a pre-flushed flushing syringe for infusion. Syringe Pump Combo Pack.

The present invention solves the above technical problems through the following technical solutions:

A combination pack of a pre-flushed syringe infusion pump comprising:

a syringe;

A pump body, the pump body is provided with an accommodating chamber;

a storage liquid, the storage liquid is located in the accommodating cavity of the pump body;

a filter;

A first conduit, a second conduit and a third conduit, the first conduit communicates with the liquid storage, the second conduit communicates with one end of the filter, and the third conduit communicates with the other end of the filter connected;

A three-way one-way valve body, the three passages of the three-way one-way valve body communicate with the first conduit, the second conduit and the syringe respectively;

Wherein, the pre-flushed syringe infusion pump combination package further includes a first passage and a second passage, and the first passage passes through the syringe, the three-way one-way valve body, the first catheter and the liquid storage; the second passage passes through the liquid storage, the first conduit, the three-way check valve body, the second conduit, the filter and the third conduit in sequence.

Preferably, the liquid storage is provided with a rod body and a first inner cavity, and the rod body is buckled at one end of the liquid storage and located in the first inner cavity.

Preferably, the pump body includes:

case;

A cover, the cover is fastened to the housing, the housing and the cover surround and form the accommodation chamber, the liquid storage is located in the accommodation chamber, and the liquid storage The other end is fastened to the cover;

A positioning sleeve, one end of the positioning sleeve is pierced through the cover and communicated with the first conduit, the other end of the positioning sleeve is located in the first inner cavity of the liquid storage, and is sleeved on the the other end of the rod.

Preferably, the material of the housing is a transparent material.

Preferably, the syringe includes:

a cylinder, the cylinder is provided with a needle and a second inner cavity;

a core rod, the core rod is slidably disposed in the second inner cavity;

a cap, the cap is detachably covered on the needle, and is used to prevent the liquid or medicine in the second inner chamber of the barrel from flowing out.

Preferably, the syringe is used to inject the liquid or medicine into the first catheter.

Preferably, the syringe further includes a rubber stopper, the rubber stopper is located in the second inner cavity of the barrel, and is buckled on the end of the core rod close to the needle, and the outer peripheral edge of the rubber stopper It is an interference fit with the inner wall of the second inner chamber.

Preferably, the pre-flushed syringe syringe infusion pump combination package further includes a Y-shaped tee, and one channel of the Y-shaped tee communicates with the third conduit.

Preferably, the liquid storage is in the shape of a hollow capsule, and the material of the liquid storage is an extensible material.

Preferably, the extensible material is latex or silica gel.

The positive progress effect of the present invention is:

The present invention generates pressure through the retraction of the characteristic performance of the liquid storage, and the uninterrupted microquantity of the liquid enters the human body through indwelling needles, central venous catheters, etc. The uninterrupted liquid supply prevents the blockage of the indwelling pipeline caused by thrombus after venous blood backflow, and overcomes the secondary danger caused by thrombus blockage.

Description of drawings

Fig. 1 is a schematic structural diagram of the initial state of the pre-flushed syringe infusion pump combination package according to the preferred embodiment of the present invention.

Fig. 2 is a schematic diagram of the structure of the pre-flushed syringe infusion pump combination package according to the preferred embodiment of the present invention before use.

Fig. 3 is a schematic diagram of the used structure of the pre-flushed syringe infusion pump combination package according to the preferred embodiment of the present invention.

Explanation of reference signs

Syringe 1

Barrel 11

Core rod 12

cap 13

Rubber stopper 14

Needle 111

Second lumen 112

Reservoir 2

rod body 21

First lumen 22

pump body 3

shell 31

Cover 32

Accommodating cavity 33

positioning sleeve 34

filter 4

first conduit 5

Second conduit 6

Three-way check valve body 7

Dosing channel 71

Y-shaped tee 8

third conduit 9

detailed description

The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.

Please understand in conjunction with Figure 1, Figure 2 and Figure 3, this implementation case provides a pre-flushed syringe infusion pump package, which includes: a syringe 1, a liquid storage 2, a pump body 3, a filter 4, the first conduit 5, the second conduit 6, the third conduit 9, a three-way check valve body 7, the first passage and the second passage. Wherein, the structure of the pump body 3 in FIGS. 1 to 3 shows its internal structure.

The first passage passes through the syringe 1, the three-way one-way valve body 7, the first conduit 5 and the liquid storage 2 in sequence; the second passage passes through the liquid storage 2, the first conduit 5, and the three-way one-way valve body 7 in sequence , the second conduit 6, the filter 4 and the third conduit 9.

The liquid storage 2 is provided with a rod body 21 and a first inner cavity 22 , the rod body 21 is buckled on one end of the liquid storage 2 and located in the first inner cavity 22 . The storage liquid 2 is in the shape of a hollow capsule, and the material of the storage liquid 2 is an extensible material. The extensible material is latex or silica gel. Such liquid storage 2 has better auto-shrinking function and can supply liquid continuously. The automatic and continuous contraction of the liquid storage 2 is mainly based on the characteristics of the material of the liquid storage 2. The material is memory-modulated through a physical process, so that it can safely and stably generate a retraction force after being filled, and continuously output the liquid in the first inner cavity 22 .

The pump body 3 includes: a housing 31 , a cover 32 and a positioning sleeve 34 . The material of the housing 31 is a transparent material.

The cover 32 is fastened to the housing 31 , and the housing 31 and the cover 32 surround to form an accommodating cavity 33 , the liquid storage 2 is located in the accommodating cavity 33 , and the other end of the liquid storage 2 is buckled to the cover 32 .

One end of the positioning sleeve 34 passes through the cover body 32 and communicates with the first conduit 5 . The other end of the positioning sleeve 34 is located in the first inner chamber 22 of the liquid storage 2 and sleeved on the other end of the rod body 21 .

The first conduit 5 communicates with the liquid storage 2 ; the second conduit 6 communicates with one end of the filter 4 , and the third conduit 9 communicates with the other end of the filter 4 . The third conduit 9 adopts a micro quantitative pipeline to ensure the output speed of the medicinal liquid.

The three passages of the three-way one-way valve body 7 communicate with the first conduit 5 , the second conduit 6 and the syringe 1 respectively. The three passages of the three-way one-way valve body 7 are connected to the syringe 1 as the feeding passage 71, which is a one-way passage, and the other two passages are in an intercommunicating state when no liquid is added.

The syringe 1 includes: a cylinder body 11 , a core rod 12 , a cap 13 and a rubber stopper 14 . The syringe 1 is used to inject liquid or medicine into the first catheter 5 .

The barrel 11 is provided with a needle 111 and a second inner cavity 112 . The core rod 12 is slidably disposed in the second inner cavity 112 . The cap 13 is detachably mounted on the needle 111 and is used to prevent the liquid or medicine in the second inner cavity 112 of the barrel 11 from flowing out. The rubber stopper 14 is located in the second inner chamber 112 of the cylinder body 11 and is buckled on the end of the core rod 12 close to the needle 111 .

The pre-flushed syringe syringe infusion pump combination package also includes a Y-shaped tee 8 , and one channel of the Y-shaped tee 8 communicates with the third conduit 9 .

When in use, at the end of the infusion, open the cap 13 of the syringe 1, and inject the physiological saline in the syringe 1 through the first passage, that is, through the syringe 1, the three-way check valve body 7, and the first conduit 5 into the reservoir. in liquid 2. When the infusion is completed, indwelling needles, central venous catheters, and other indwelling lines need to be indwelled, the Y-shaped tee 8-1 interface is connected to the indwelling line, and under the automatic and continuous contraction of the storage liquid 2, physiological saline passes through the second path , that is, successively pass through the liquid storage 2, the first conduit 5, the three-way check valve body 7, the second conduit 6, the filter 4 and the third conduit 9 and continuously enter the indwelling pipeline (not shown in the figure) in a small amount continuously, The liquid (not shown in the figure) in the indwelling pipeline enters the blood vessels of the human body. Therefore, at the end of the infusion, the device of the present invention can give a certain pressure to the blood vessel to prevent the blood in the venous blood vessel from flowing back into the indwelling lines such as the indwelling needle and the central venous catheter. In this way, the problem of blockage of indwelling pipelines such as indwelling needles caused by thrombus after venous blood return can be avoided, and the secondary risk caused by thrombus blockage can be overcome.

The inner diameter of the third conduit 9 may be 0.001-0.2 mm. In this way, the third conduit 9 is a micro-quantitative pipeline, which can control the outflow speed of the medicinal liquid to make the medicinal liquid flow out in a micro-quantitative manner.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims (10)

1. a kind of pre- formula flushing syringe infusion pump of rushing combines bag, it is characterised in that it includes：

One syringe；

One pump housing, the pump housing are provided with accommodating cavity；

One tank body, the tank body are located in the accommodating cavity of the pump housing；

One filter；

First conduit, the second conduit and the 3rd conduit, first conduit connect with the tank body, second conduit and institute One end connection of filter is stated, the 3rd conduit connects with the filter other end；

One tee one-way valve body, three passages of the tee one-way valve body respectively with first conduit, second conduit Connected with the syringe；

Wherein, the pre- formula flushing syringe infusion pump combination bag that rushes also includes the first path and alternate path, and described first is logical Road passes sequentially through the syringe, the tee one-way valve body, first conduit and the tank body；The alternate path according to It is secondary to pass through the tank body, first conduit, the tee one-way valve body, second conduit, the filter and described 3rd conduit.

2. as claimed in claim 1 rush formula flushing syringe infusion pump combination bag in advance, it is characterised in that the tank body is provided with The body of rod and first inner chamber, the body of rod are snapped in one end of the tank body, and in the first inner chamber.

3. as claimed in claim 2 rush formula flushing syringe infusion pump combination bag in advance, it is characterised in that the pump housing includes：

Housing；

Lid, the lid are snapped in the housing, and the housing surrounds with the lid and forms the accommodating cavity, the liquid storage Body is located in the accommodating cavity, and the other end of the tank body is snapped in the lid；

Locating sleeve, described locating sleeve one end are arranged in the lid and connected with first conduit, the locating sleeve The other end be located in the first inner chamber of the tank body, and be sheathed on the other end of the body of rod.

4. as claimed in claim 3 rush formula flushing syringe infusion pump combination bag in advance, it is characterised in that the material of the housing For transparent material.

5. the pre- formula flushing syringe infusion pump of rushing as described in any one in claim 1-4 combines bag, it is characterised in that The syringe includes：

Cylinder, the cylinder are provided with syringe needle and second inner chamber；

Core bar, the core bar are slidedly arranged on the second inner chamber；

Block, the block are releasably covered on the syringe needle, and for preventing the liquid in the second inner chamber of the cylinder Or medicine outflow.

6. as claimed in claim 5 rush formula flushing syringe infusion pump combination bag in advance, it is characterised in that the syringe is used for The liquid or medicine are inputted to first conduit.

7. as claimed in claim 5 rush formula flushing syringe infusion pump combination bag in advance, it is characterised in that the syringe also wraps Plug is included, the plug is located in the second inner chamber of the cylinder, and is snapped in the core bar close to one end of the syringe needle, institute It is interference fit that the outer peripheral edge of plug, which is stated, with the inwall of the second inner chamber.

8. as claimed in claim 1 rush formula flushing syringe infusion pump combination bag in advance, it is characterised in that described pre- to rush formula washing pipe Syringe infusion pump combination bag also includes Y shape threeway, and one of passage of the Y shape threeway connects with the 3rd conduit.

9. as claimed in claim 1 rush formula flushing syringe infusion pump combination bag in advance, it is characterised in that during the tank body is Empty pocket shape, the material of the tank body is malleable material.

10. as claimed in claim 9 rush formula flushing syringe infusion pump combination bag in advance, it is characterised in that the ductility Material is latex or silica gel.