CN210963280U - Syringe is used in evaluation of pre-filled formula dialysis catheter - Google Patents

Abstract

The utility model provides a pre-filled formula dialysis syringe for pipe aassessment, including the syringe, the observation room, the manometer, the duckbilled valve, the flap unit, connecting pipe and observation room bottom fixed connection on the syringe, and be linked together with the observation room, observation room top fixedly connected with tubulose interface, tubulose interface and observation room intercommunication, the observation room wall is connected with the duckbilled valve, the duckbilled valve separates into two upper and lower cavitys with the observation room, the manometer is connected at duckbilled valve top observation room outer wall, be connected with a plurality of flap units on the duckbilled valve body, the flap unit includes flap and flap mouth, cylinder inner wall upper portion salient has the arch, the position that the piston lateral wall suited is opened flutedly, promote the push rod, the arch can imbed in the recess. The injector is convenient for judging whether thrombus exists in blood drawn into the injector; the pressure gauge is convenient for judging the smoothness of the guide pipe; the one-way valve flushing port is convenient for flushing the observation chamber; the sealed retractable protective sleeve can reduce the probability of syringe contamination.

Description

Syringe is used in evaluation of pre-filled formula dialysis catheter

Technical Field

The utility model relates to the field of medical equipment, concretely relates to pre-filled formula dialysis pipe is syringe for aassessment.

Background

At present, a common 20ml syringe is used for extracting blood in a patient catheter when a dialysis catheter is evaluated, and the blood extracted into the syringe is uncertain whether containing thrombus, and for the part of the blood (10ml-20ml), the blood is only discarded on a gauze piece to observe whether containing thrombus, so that the blood of the patient is wasted to a great extent. Meanwhile, the probability of pollution of a piston push rod and a needle cylinder of the common injector in the process of repeated pumping and pushing is greatly increased. Finally, when the patency of the catheter is evaluated by using a common injector, the judgment is usually carried out by a method of reading the second, and the change of the pressure in the catheter is ignored in the process, so that the obtained result is inaccurate.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the prior art, the utility model provides a pre-filled formula dialysis pipe is syringe for aassessment, the thrombus can be held back to this syringe, conveniently judges whether have the thrombus in the blood of extracting in the syringe, can also read out the pressure variation in the pipe, conveniently judges the patency of pipe.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a pre-filled formula dialysis catheter is syringe for aassessment, includes the syringe, and the syringe still includes observation room, duckbilled valve, flap unit including pushing away handle, push rod, cylinder, connecting pipe, piston, connecting pipe and observation room bottom fixed connection to be linked together with the observation room, observation room top fixedly connected with tubulose interface, tubulose interface and observation room intercommunication, the observation room inner wall is connected with the duckbilled valve, and the duckbilled valve separates into two upper and lower cavitys with the observation room, and the duckbilled valve is connected with a plurality of flap units on one's body, the flap unit includes flap and flap mouth.

Foretell pre-filled formula dialysis catheter syringe for aassessment still includes the manometer, the manometer is connected at the observation room outer wall between duckbill valve and connecting pipe.

In the above syringe for evaluation of the prefilled dialysis catheter, the side wall of the observation chamber is connected with a one-way valve flushing port.

In the syringe for the evaluation of the prefilled dialysis catheter, the upper part of the inner wall of the needle cylinder is provided with the protrusion in a protruding manner, the corresponding position of the side wall of the piston is provided with the groove, the push rod is pushed, and the protrusion can be embedded into the groove.

The syringe for the evaluation of the prefilled dialysis catheter is characterized in that the tubular interface is a threaded tubular interface.

The pre-filled syringe for dialysis catheter assessment further comprises a sealed telescopic protective sleeve, one end of the sealed telescopic protective sleeve is fixedly connected to the back face of the push handle, and the other end of the sealed telescopic protective sleeve is fixedly connected to one end, close to the push handle, of the needle cylinder.

In the above syringe for evaluation of a prefilled dialysis catheter, the observation chamber has a cylindrical shape.

The utility model has the advantages that: through the design of the observation chamber, the duckbill valve and the valve unit, the injector can intercept thrombus and conveniently judge whether thrombus exists in blood pumped into the injector; the pressure change in the conduit can be read through the pressure gauge, so that the smoothness of the conduit can be conveniently judged; the observation chamber is convenient to flush through the one-way valve flushing port; the sealed telescopic protective sleeve can reduce the probability of pollution of the injector; the threaded tubular interface is convenient to be connected with a dialysis catheter and is not easy to fall off.

Drawings

FIG. 1 is a view of the syringe for evaluation of a prefilled dialysis catheter of the present invention;

figure 2 is a front view of a prefilled dialysis catheter evaluation syringe component duckbill valve of the present invention.

In the figure: 1-interface, 2-pressure gauge, 3-one-way valve flushing port, 4-observation chamber, 5-duckbill valve, 501-valve, 502-duckbill valve body, 6-bulge, 7-groove, 8-piston, 9-push rod, 10-closed telescopic protective sleeve, 11-push handle, 12-needle cylinder, 13-connecting pipe and 14-priming liquid.

Detailed Description

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Example 1

The utility model provides a pre-filled formula dialysis catheter is syringe for aassessment, includes the syringe, and the syringe still includes observation room 4, duckbilled valve 5, flap unit including pushing away handle 11, push rod 9, cylinder 12, connecting pipe 13, piston 8, connecting pipe 13 and 4 bottom fixed connection in observation room to be linked together with observation room 4, 4 top fixedly connected with tubulose interfaces 1 in observation room, tubulose interface 1 and 4 intercommunications in observation room, 4 wall connections in observation room have duckbilled valve 5, and two upper and lower cavitys are separated into with observation room 4 to duckbilled valve 5, are connected with a plurality of flap units on duckbilled valve body 502, the flap unit includes flap 501 and flap mouth. The syringe 12, the connecting pipe 13, the observation chamber 4 and the tubular interface 1 are communicated in sequence. The barrel 12, the connecting tube 13, the viewing chamber 4, the tubular port 1 and the protrusion 6 may be integrally formed.

Example 2

Based on embodiment 1, embodiment 2 lists several preferred technical features, and embodiment 1 can be combined with them alternatively or in a plurality to form a plurality of different new technical solutions:

preferably, the syringe for the evaluation of the prefilled dialysis catheter further comprises a pressure gauge 2, wherein the pressure gauge 2 is connected to the outer wall of the observation chamber between the duckbill valve 5 and the connecting pipe 13.

Preferably, in the above syringe for evaluation of the prefilled dialysis catheter, the side wall of the observation chamber 4 is connected with the one-way valve flushing port 3.

Preferably, in the above syringe for evaluation of a prefilled dialysis catheter, the protrusion 6 protrudes from the upper portion of the inner wall of the barrel 12, the groove 7 is formed at a position corresponding to the side wall of the piston 8, and the protrusion 6 can be inserted into the groove 7 by pushing the push rod 9.

Preferably, in the above syringe for evaluating a prefilled dialysis catheter, the tubular interface 1 is a threaded tubular interface.

Preferably, the syringe for the evaluation of the prefilled dialysis catheter further comprises a sealed retractable protective sleeve 10, one end of the sealed retractable protective sleeve 10 is fixedly connected to the back surface of the push handle 11, and the other end of the sealed retractable protective sleeve 10 is fixedly connected to one end of the syringe close to the push handle 11.

Preferably, in the above syringe for evaluation of a prefilled dialysis catheter, the observation chamber 4 is cylindrical.

Example 3

In more detail, referring to fig. 1, an embodiment of the present invention provides a prefilled syringe for dialysis catheter evaluation, comprising a port 1 made of medical polyethylene, a one-way valve flushing port 3, an observation chamber 4, a duckbill valve 5, a retainer protrusion 6, a push rod 9, a sealed retractable protective sleeve 10, a push handle 11, a syringe 12, a connecting tube 13 and a piston 8 made of medical rubber. Priming solution 14 made of sterile physiological saline. The duckbill valve 5 is a one-way microporous duckbill valve. The viewing chamber is transparent. The tubular interface 1 can be a threaded tubular interface and can be connected with a dialysis catheter in a threaded mode, and can also be a non-threaded interface and is directly inserted into a port of the dialysis catheter.

Wherein tubulose interface 1 passes through glue and connects in 4 tops of observation chamber, one-way micropore duckbilled valve 5 uses glue to bond in the observation chamber inner wall, one-way valve washes mouth 3 and uses glue to inlay in 4 lateral walls of observation chamber, manometer 2 connects on 4 lateral walls of observation chamber between one-way micropore duckbilled valve 5 and the connecting pipe, 4 bottoms of observation chamber are glued together through glue and 13 upper ends of connecting pipe, 13 lower extremes of connecting pipe and cylinder 12 fixed connection, piston 8 is located inside cylinder 12, piston 8 links to each other with push rod 9, 9 lower extremes of push rod with push away handle 11 and link to each other, the scalable protective sheath 10 upper end of closed is glued together through glue and 12 inboard walls of cylinder, the scalable protective sheath 10 lower extreme of closed is connected at push rod 9 and is pushed away handle 11. The priming liquid 14 fills the space inside the tubular port 1 and the observation chamber 4. The closed telescopic protective sleeve is a seamless telescopic plastic sleeve.

The retainer groove 7 on the piston 8 is matched with the retainer bulge 6 when the product is used. Linking to each other tubulose interface 1 and dialysis catheter, twitch push handle 11 inside blood of dialysis catheter this time through one-way micropore duckbill valve 5, this time because the reason flap 501 of blood flow is closed, the gap between two one-way micropore duckbill valves 5 is opened, blood can not get into observation room 4 through the flap mouth on one-way micropore duckbill valve body 502, blood can only get into observation room 4 through the big gap between two one-way micropore duckbill valves 5, the thrombus in the dialysis catheter just so can get into the observation room along with blood smoothly. When the piston moves to a certain position of the needle cylinder 12, the push handle 11 is pushed to make the blood inside the needle cylinder 12 flow back into the dialysis catheter. At this time, due to blood flow reasons, the two one-way microporous duckbill valves 5 are closed, and the valve 501 is opened, so that blood can flow back into the dialysis catheter through the valve opening on the one-way microporous duckbill valve body 502, and thrombus is trapped inside the observation chamber 4. The numerical value on the pressure gauge 2 is observed when the push handle 11 is drawn back and forth at a constant speed, and the pressure inside the tube cavity at the corresponding blood flow velocity can be judged, so that whether the dialysis catheter can be used for dialysis treatment or not is determined. After the judgment, the groove 7 of the fixer is matched with the bulge 6 of the fixer, and the blood in the observation chamber 4 is washed clean by using the physiological saline through the one-way valve washing port 3.

To sum up this product can be very big the saving patient's valuable blood of degree, waste patient's blood hardly, owing to avoided polluting patient's dialysis catheter's possibility in the structure of having adopted the closed very big degree, owing to increased manometer 2 simultaneously, can be more accurate audio-visual the patency of judgement dialysis catheter.

It should be noted that the words upper and lower, bottom, top, etc. in this text express positions, only relative to the position of the injector in this figure, is a relative position and not an absolute position.

The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.

Claims (7)

1. The utility model provides a pre-filled formula dialysis catheter syringe for aassessment, includes the syringe, and the syringe is including pushing away handle, push rod, cylinder, connecting pipe, piston, its characterized in that: still include observation room, duckbilled valve, flap unit, connecting pipe and observation room bottom fixed connection to be linked together with the observation room, observation room top fixedly connected with tubulose interface, tubulose interface and observation room intercommunication, the observation room wall connection has the duckbilled valve, and two upper and lower cavitys are separated into with the observation room to the duckbilled valve, are connected with a plurality of flap units on the duckbilled valve body, the flap unit includes flap and flap mouth.

2. The pre-filled dialysis catheter evaluation syringe of claim 1, wherein: still include the manometer, the observation chamber outer wall between duckbill valve and connecting pipe is connected to the manometer.

3. The pre-filled dialysis catheter evaluation syringe of claim 1, wherein: the side wall of the observation chamber is connected with a one-way valve flushing port.

4. A prefilled syringe for dialysis catheter evaluation as set forth in claim 3, wherein: the upper part of the inner wall of the needle cylinder is provided with a bulge in a protruding way, the corresponding position of the side wall of the piston is provided with a groove, the push rod is pushed, and the bulge can be embedded into the groove.

5. The pre-filled dialysis catheter evaluation syringe of claim 1, wherein: the tubular interface is a threaded tubular interface.

6. The pre-filled dialysis catheter evaluation syringe of claim 1, wherein: still include the scalable protective sheath of closed, scalable protective sheath one end fixed connection of sealed pushes away the handle back, and other end fixed connection is close to the one end that pushes away the handle at the cylinder.

7. The pre-filled dialysis catheter evaluation syringe of claim 1, wherein: the observation chamber is cylindrical.

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