CN210844668U - A drug stress myocardial perfusion ultrasound imaging inspection device - Google Patents

Abstract

The utility model discloses a drug-loaded myocardial perfusion ultrasonic imaging inspection device, which comprises a casing, an oscillating part, a first injection part and a second injection part. The contrast powder is mixed evenly; the infusion end of the oscillating myocardial perfusion powder bottle is provided with a detection catheter, and the end of the detection catheter away from the oscillation part is connected with a first valve; one end of the first injection part is connected with a second valve, and the remaining two valves of the second valve are connected with a first valve. The valve ports are respectively connected with the infusion bottle filled with physiological saline and one of the valve ports of the first valve through the catheter; one end of the second injection part is connected with a drug loading pipe, and the remaining valve ports of the first valve are also connected with a myocardial perfusion pipe, The myocardial perfusion conduit is connected with the drug loading conduit; the first injection part can inject the uniformly mixed contrast agent or normal saline through the myocardial perfusion conduit to the drug loading conduit to mix with the medicine delivered by the second injection part integrated and delivered to the patient through the same vein of the patient.

Description

A drug stress myocardial perfusion ultrasound imaging inspection device

technical field

The utility model relates to the technical field of drug loading myocardial perfusion ultrasound imaging, in particular to a drug loading myocardial perfusion ultrasound imaging inspection device.

Background technique

Drug stress myocardial perfusion ultrasound imaging is a common medical method. This technique requires the combination of two inspection methods: 1. Drug stress echocardiography; 2. Myocardial perfusion echocardiography; drug stress echocardiography and drug stress echocardiography. Combined with myocardial perfusion ultrasound imaging, drug loading simulates exercise state, and exposes potential myocardial ischemia. Myocardial perfusion visualizes abnormal myocardial movement caused by myocardial ischemia through perfusion defect or reduced perfusion, increasing the sensitivity of diagnosing myocardial ischemia. , specificity, improve the accuracy of diagnosis;

However, in the clinical examination, the following problems exist when the two examinations are carried out at the same time:

First, when the two inspection drugs converge in the same channel and then enter the human vein, when the pressure or speed of one of the pipelines is too fast, the speed of the other pipeline entering the venous system is slowed down or reverse flow imaging, which affects the drug concentration and check the effect;

Second, some hospitals also use the establishment of two venous channels to separate the two examination channels to reduce the unfavorable factors of pipeline competition, but for patients, they need to bear the pain and corresponding medical expenses caused by one more venous access.

Third, in the myocardial perfusion echocardiography examination, artificial slow bolus injection of drugs is generally used, and the rate control is unstable, which affects the examination effect.

Utility model content

(1) Technical problems solved

In view of the deficiencies of the prior art, the utility model provides a drug-loaded myocardial perfusion ultrasound imaging inspection device, which can make two kinds of inspection drugs converge in the same venous channel, and can prevent the two kinds of liquids in the pipeline from flowing back. Or compete with each other, and use mechanical pumping myocardial perfusion angiography at the same time to improve the stability of the inspection effect.

(2) Technical solutions

A drug load myocardial perfusion ultrasound imaging inspection device, comprising a casing, an oscillating part, a first injection part and a second injection part, the casing is provided with a first accommodating cavity, a second accommodating cavity and an oscillating cavity; The oscillating myocardial perfusion powder bottle is installed in the oscillating cavity for oscillating the myocardial perfusion powder bottle, so that the contrast powder in the oscillating myocardial perfusion powder bottle can be mixed evenly. One end of the first injection part is connected with a first valve; the first injection part is installed in the first accommodating cavity, one end of the first injection part is connected with a second valve, and the remaining two valve ports of the second valve pass through the conduit and contain the medicinal liquid respectively. The infusion bottle is connected to one of the valve ports of the first valve; the second injection part is installed in the second accommodating cavity, one end of the second injection part is connected with a drug loading pipe, and the remaining valve port of the first valve is also connected to the myocardium perfusion conduit, the myocardial perfusion conduit is connected with the drug loading conduit; the first injection part can inject uniformly mixed contrast agent or normal saline to the drug loading conduit through the myocardial perfusion conduit The medicaments delivered by the second injection part are mixed into one body and delivered to the body of the patient through the same vein of the patient.

Preferably, both the myocardial perfusion conduit and the drug loading conduit are provided with a one-way valve to prevent backflow of the drug due to different pipeline pressures.

Preferably, the oscillating part includes a fixed seat, a rotary rod, a piston rod and a piston seat, the fixed seat is installed in the oscillating cavity, and a first motor is also installed on the top of the fixed seat, and the output shaft of the first motor is connected to the rotary shaft. The input end of the rod is integrally connected, the output end of the rotating rod is hinged with the first end of the piston rod, the second end of the piston rod is movably arranged in the piston seat, and the piston seat is rotatably arranged on one side of the fixed seat, so The piston seat is also provided with a storage chamber for placing the myocardial perfusion powder bottle; the first motor drives the piston rod to move relative to the piston seat, thereby driving the piston seat to sway back and forth.

Preferably, the side of the storage cavity is provided with a first opening groove, so that the detection catheter connected to the bottom of the myocardial perfusion powder bottle is easy to take and place.

Preferably, the detection catheter is divided into a soft tube and a hard tube, the soft tube is connected to the bottom of the myocardial perfusion powder bottle, one end of the hard tube is connected to the soft tube, and the other end is connected to the first valve; the The shell is also provided with a bubble detector, and the bubble detector is installed on the side of the hard tube to detect whether the air in the myocardial perfusion powder bottle enters the pipeline.

Preferably, it also includes a fixing frame for hanging the infusion bottle, a third accommodating cavity for placing the infusion bottle is further provided inside the housing, a clamping slot is provided at the opening of the third accommodating cavity, and the fixing frame is connected to the The card slot is clamped to facilitate taking and placing the infusion bottle; the side of the third accommodating cavity is also provided with a second opening slot, which is convenient for taking and placing the infusion catheter connected to the bottom of the infusion bottle.

Preferably, the first valve and the second valve are both rotary three-way valves controlled by a motor.

Preferably, the first injection part includes a syringe and an electric push rod, the syringe is detachably mounted on the housing, the electric push rod is installed in the first accommodating cavity, and the push rod end of the electric push rod is connected to the The drive rod of the syringe is abutted, and the syringe is connected to the first valve; the drive rod is pushed by the electric push rod to move along the length of the syringe, thereby controlling the syringe to absorb and release the medicine.

Preferably, the structure of the second injection part is the same as that of the first injection part.

Preferably, the control ends of the electric push rods of the first injection part and the second injection part are provided with resistance monitoring to improve safety.

(3) Beneficial effects

The utility model provides a drug-loaded myocardial perfusion ultrasound imaging inspection device, which can make two kinds of inspection drugs converge in the same venous channel, and can prevent the two kinds of liquids in the pipeline from flowing backward or competing with each other, and using mechanical Pump myocardial perfusion angiography to improve the stability of the inspection results.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification, and are used to explain the present utility model together with the embodiments of the present utility model, and do not constitute a limitation to the present utility model. In the accompanying drawings:

Fig. 1 is the overall structure schematic diagram of the present utility model;

FIG. 2 is an enlarged view showing the place in FIG. 1A;

Fig. 3 is a partial structural schematic diagram one of the utility model;

Fig. 4 is the second partial structure schematic diagram of the present utility model;

FIG. 5 is a schematic view of the structure of the oscillating part of the present invention;

FIG. 6 shows the cross-sectional view of FIG. 5 .

In the figure: 1 shell, 11 first accommodating cavity, 12 second accommodating cavity, 13 oscillating cavity, 14 third accommodating cavity, 140 card slot, 2 oscillating part, 20 detecting catheter, 20a hose, 20b hard tube, 21 Fixed seat, 22 rotary rod, 23 piston rod, 24 piston seat, 240 storage cavity, 240a first opening slot, 25 first motor, 3 first injection part, 30 myocardial perfusion catheter, 31 syringe, 32 electric push rod, 4 second injection part, 40 drug loading tube, Y myocardial perfusion powder bottle, S infusion bottle, T1 first valve, T2 second valve, D one-way valve, Q bubble detector, G fixed frame.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Referring to Figures 1-6, a drug-loaded myocardial perfusion ultrasound imaging inspection device includes a housing 1, an oscillating part 2, a first injection part 3 and a second injection part 4, and the housing 1 is provided with a first accommodating cavity 11. The second accommodating cavity 12 and the oscillation cavity 13; the oscillating part 2 is installed in the oscillating cavity 13, and is used to oscillate the myocardial perfusion powder bottle Y, so that the contrast powder in the oscillating myocardial perfusion powder bottle Y is mixed evenly, and the myocardial perfusion powder is oscillated. The infusion end of the bottle Y is provided with a detection catheter 20, and the end of the detection catheter 20 away from the oscillation part 2 is connected with a first valve T1; the first injection part 3 is installed in the first accommodation cavity 11, and one end of the first injection part 3 is connected with a Two valves T2, and the remaining two valve ports of the second valve T2 are respectively connected to the infusion bottle S containing the medicinal liquid and one of the valve ports of the first valve T1 through the conduit, and the medicinal liquid is physiological saline; the second injection part 4 is installed in the second accommodating cavity 12, one end of the second injection part 4 is connected with a drug loading conduit 40, and the remaining valve port of the first valve T1 is also connected with a myocardial perfusion conduit 30, which is connected to the drug loading conduit. The tube 40 is connected; the first injection part 3 can inject the uniformly mixed contrast agent or physiological saline through the myocardial perfusion tube 30 to the drug loading tube 40 and mix with the medicine delivered by the second injection part 4. and delivered to the patient through the same vein of the patient.

To sum up, before the operation, the myocardial perfusion powder bottle Y is installed on the oscillating part 2, the infusion bottle S is hung, and all kinds of catheters are connected, and the physiological saline pre-filled pipeline in the infusion bag is extracted;

The first stage: start the first injection part 3 to first withdraw 5ml of physiological saline in the infusion bag, adjust the first valve T1 and the second valve T2, and inject the physiological saline in the first injection part 3 into the myocardial perfusion powder bottle Y, Then adjust the first valve T1 to close the detection catheter 2021, and then disconnect the connection channel between the myocardial perfusion powder bottle Y and the first injection part 3, and start the oscillation part 2 to oscillate for 1 minute. Turn off the oscillation part 2 first, then readjust the first valve T1, start the first injection part 3 to withdraw 2.5ml of the dissolved contrast agent solution in the myocardial perfusion powder bottle Y, and then adjust the first valve T1 and the second valve T2, Push into the human body through the myocardial perfusion tube 30 at a bolus injection speed of 1ml/min; after the bolus injection, adjust the second three-way connector, extract 10ml of normal saline, and then push it into the human body at a speed of 1ml/min. The first stage is completed, and in the first stage, the second injection part 4 is in a closed state.

The second stage: due to the stagnation of the myocardial perfusion powder bottle Y due to the closure of the oscillation part 2, part of the contrast powder will precipitate and separate the physiological saline or precipitate. Therefore, the oscillator needs to be restarted to fully dissolve the remaining 2.5ml of contrast agent, and then pass the first injection again. Part 3 extracts the remaining 2.5ml of contrast agent. After the contrast agent extraction is completed, the first injection part 3 and the second injection part 4 are activated at the same time. The first injection part 3 is injected at a rate of 1ml/min. A constant-rate bolus is performed at the speed required for the examination, and the second stage is completed, and the angiography is completed.

Referring to FIG. 1, both the myocardial perfusion conduit 30 and the drug loading conduit 40 are provided with a one-way valve D, which is used to control the fluid flow in the myocardial perfusion conduit 30 and the drug loading conduit 40 to prevent the different pressures in the pipes The resulting drug backflow, which in turn affects another channel of the drug into the body.

1-6, the oscillating part 2 includes a fixed seat 21, a rotating rod 22, a piston rod 23 and a piston seat 24, the fixed seat 21 is installed in the oscillating cavity 13, and a first motor 25 is also installed on the top of the fixed seat 21, The output shaft of the first motor 25 is integrally connected with the input end of the rotary rod 22, the output end of the rotary rod 22 is hinged with the first end of the piston rod 23, the second end of the piston rod 23 is movably arranged in the piston seat 24, and the piston seat 24 can It is rotatably arranged on one side of the fixed seat 21, so that the first motor 25 drives the rotary rod 22 to rotate, thereby driving the piston rod 23 to move relative to the piston seat 24, and finally makes the piston seat 24 sway left and right; In the storage chamber 240 where the myocardial perfusion powder bottle Y is placed; when in use, place the myocardial perfusion powder bottle Y in the storage chamber 240, and start the first motor 25 to make the contrast agent powder and physiological saline in the myocardial perfusion powder bottle Y sufficient. mix.

5-6, the bottom of the myocardial perfusion powder bottle Y is connected to the detection catheter 20, and the side of the storage cavity 240 is provided with a first opening slot 240a, so that the doctor can replace the myocardial perfusion powder bottle Y when using the device; The detection catheter 20 at the bottom of the perfusion powder bottle Y is inconvenient to take and place, which affects the replacement of the myocardial perfusion powder bottle Y. In order to replace the myocardial perfusion powder bottle Y more quickly, a first opening slot 240a for the detection catheter 20 is designed. .

4, the detection catheter 20 is divided into a flexible tube 20a and a rigid tube 20b. The flexible tube 20a is connected to the bottom of the myocardial perfusion powder bottle Y, and one end of the rigid tube 20b is connected to the flexible tube 20a. The design of the flexible tube 20a can make the myocardial The shaking of the filling powder bottle Y will not affect the normal delivery of the detection conduit 20; the other end is connected to the first valve T1; the housing 1 is also provided with a bubble detector Q, and the bubble detector Q is installed next to the hard pipe 20b On the side, the air bubble monitor is used to detect whether the air in the myocardial perfusion powder bottle Y enters the pipeline, so as to ensure that the contrast agent solution can be exhausted without pumping the air in the bottle into the pipeline.

Referring to Figures 1-3, it also includes a fixing frame G for suspending the infusion bottle S, a third accommodating cavity 14 for placing the infusion bottle S inside the housing 1, and a clamping slot at the opening of the third accommodating cavity 14 140, the fixing frame G is clamped with the card slot 140, so as to facilitate the taking and placing of the infusion bottle S; the side of the third accommodating cavity 14 is also provided with a second opening slot 14a for routing the infusion catheter at the bottom of the liquid bottle, so as to facilitate the user to replace Infusion bottle S.

Referring to Figures 3-4, the first valve T1 and the second valve T2 are both rotary three-way valves controlled by a motor, and the user can control each valve port of the first valve T1 and the second valve T2 by controlling the steering of the motor opening and closing.

1-4, the first injection part 3 includes a syringe 31 and an electric push rod 32, the syringe 31 is detachably mounted on the housing 1, the electric push rod 32 is installed in the first accommodating cavity 11, and the electric push rod The push rod end of 32 is in contact with the drive rod of the syringe 31, and the syringe is connected to the first valve; so that the electric push rod 32 pushes the drive rod to move along the length of the syringe 31, and then controls the syringe 31 to absorb and release the medicine; the second injection The part 4 has the same structure as the first injection part 3 .

Referring to Figure 3, the control ends of the electric push rods 32 of the first injection part 3 and the second injection part 4 are equipped with resistance monitoring, when the screw motor of the pump encounters resistance, the current increases, and the injection can be automatically stopped, Improved security.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood to limit the scope of protection of this application.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. a drug load myocardial perfusion ultrasound imaging inspection device, is characterized in that, comprising: a housing (1), the housing (1) is provided with a first accommodating cavity (11), a second accommodating cavity (12) and an oscillation cavity (13); The oscillating part (2), installed in the oscillating cavity (13), is used for oscillating the myocardial perfusion powder bottle (Y), so that the contrast powder in the oscillating myocardial perfusion powder bottle (Y) is evenly mixed, and the oscillating myocardial perfusion powder bottle (Y) is evenly mixed (Y) a detection conduit (20) is connected to the infusion end, and a first valve (T1) is connected to one end of the detection conduit (20) away from the oscillation part (2); The first injection part (3) is installed in the first accommodating cavity (11), one end of the first injection part (3) is connected with a second valve (T2), and the remaining two valve ports of the second valve (T2) are respectively Connect with the infusion bottle (S) containing the medicinal liquid and one of the valve ports of the first valve (T1) through the conduit; The second injection part (4) is installed in the second accommodating cavity (12), and one end of the second injection part (4) is connected with a drug loading pipe (40), and the remaining valve ports of the first valve (T1) are also A myocardial perfusion conduit (30) is connected, and the myocardial perfusion conduit (30) is connected with the drug load conduit (40); The first injection part (3) can inject the uniformly mixed contrast agent or normal saline through the myocardial perfusion cannula (30) to the medicament delivered by the drug loading canal (40) and the second injection part (4) Mixed together and delivered to the patient through the same vein of the patient. 2. A drug load myocardial perfusion ultrasound imaging inspection device according to claim 1, wherein the myocardial perfusion conduit (30) and the drug load conduit (40) are provided with a one-way valve ( D), in order to prevent the backflow of the medicament due to the different pressure of the pipeline. 3 . The device for ultrasound imaging examination of drug stress myocardial perfusion according to claim 1 , wherein the oscillating part ( 2 ) comprises a fixed seat ( 21 ), a rotating rod ( 22 ), and a piston rod ( 23 ). 4 . and a piston seat (24), the fixing seat (21) is installed in the oscillation cavity (13), and a first motor (25) is also installed on the top of the fixing seat (21), and the output shaft of the first motor (25) It is integrally connected with the input end of the rotary rod (22), the output end of the rotary rod (22) is hinged with the first end of the piston rod (23), and the second end of the piston rod (23) is movably arranged in the piston seat (24) , and the piston seat (24) is rotatably arranged on one side of the fixed seat (21), and the piston seat (24) is further provided with a storage chamber (240) for placing the myocardial perfusion powder bottle (Y); The piston rod (23) is driven to move relative to the piston seat (24) by the first motor (25), thereby driving the piston seat (24) to rock back and forth. 4. The device for ultrasound imaging examination of drug stress myocardial perfusion according to claim 3, wherein a first opening groove (240a) is provided on the side of the storage cavity (240), so as to facilitate picking and placement and myocardial perfusion The detection tube (20) connected to the bottom of the powder bottle (Y). 5 . The device for ultrasound imaging examination of drug stress myocardial perfusion according to claim 4 , wherein the detection catheter ( 20 ) is divided into a flexible tube ( 20 a ) and a rigid tube ( 20 b ). (20a) is connected to the bottom of the myocardial perfusion powder bottle (Y), one end of the rigid tube (20b) is connected to the flexible tube (20a), and the other end is connected to the first valve (T1); the casing (1) ) is also provided with a bubble detector (Q), and the bubble detector (Q) is installed on the side of the hard tube (20b) to detect whether the air in the myocardial perfusion powder bottle (Y) enters the pipeline. 6 . The device for ultrasound imaging examination of drug stress myocardial perfusion according to claim 1 , further comprising a fixing frame (G) for suspending the infusion bottle (S), the inside of the casing (1) There is also a third accommodating cavity (14) for placing the infusion bottle (S), a clamping slot (140) is provided at the opening of the third accommodating cavity (14), and the fixing frame (G) is connected to the clamping slot. (140) snap-fit to facilitate access to the infusion bottle (S); a second opening groove (14a) is also provided on the side of the third accommodating cavity (14) to facilitate access to the bottom of the infusion bottle (S) infusion catheter. 7 . The device for ultrasound imaging examination of drug stress myocardial perfusion according to claim 1 , wherein the first valve (T1) and the second valve (T2) are both rotary three-way controlled by a motor. 8 . valve. 8 . The device for ultrasound imaging examination of drug stress myocardial perfusion according to claim 1 , wherein the first injection part ( 3 ) comprises a syringe ( 31 ) and an electric push rod ( 32 ), and the syringe (31) is detachably mounted on the housing (1), the electric push rod (32) is installed in the first accommodating cavity (11), and the push rod end of the electric push rod (32) is connected to the syringe (31) The drive rod of the syringe (31) is pushed against the first valve, and the drive rod is pushed to move along the length direction of the syringe (31) by the electric push rod (32), thereby controlling the syringe (31) to absorb and release the medicine. 9 . The device according to claim 8 , wherein the second injection part ( 4 ) has the same structure as the first injection part ( 3 ). 10 . 10 . The device for ultrasound imaging examination of drug stress myocardial perfusion according to claim 9 , wherein the electric push rods ( 32 ) of the first injection part ( 3 ) and the second injection part ( 4 ) have The control end is equipped with resistance monitoring to improve safety.

Images