CN206499619U - A kind of right heart acoustic contrast auxiliary examination system - Google Patents

Abstract

The utility model discloses an auxiliary inspection system for right heart acoustic contrast imaging, which comprises an inspection chair, the inspection chair includes a chair surface, an angle-adjustable chair back is installed at the rear end of the chair surface, and a pedal is movably installed at the front end of the chair surface; The side of the back of the chair is provided with an air blowing detection device, and the air blowing detection device includes an air blowing pipe and a display screen, wherein an electronic pressure gauge is integrated on the display screen, the air blowing pipe is connected with the electronic pressure gauge through an air guide tube, and the electronic pressure gauge Readings are shown via the display as described. The utility model provides a set of systems that can assist the examiner to correct the body position, perform Valaslva action, and assist the doctor to configure and inject liquid at the same time. The system can complete all the preparatory work before radiography during the cTTE examination, and provides a lot of benefits for the medical staff. Great convenience, and at the same time enable the examiner to better cooperate with the doctor's operation.

Description

A Right Heart Acoustic Contrast Imaging Auxiliary Inspection System

technical field

The utility model relates to an auxiliary device for medical inspection, in particular to an auxiliary inspection system for right heart acoustic imaging.

Background technique

The foramen ovale is a physiological channel in the embryonic period of the atrial septum of the heart. Most of it closes after birth, and the rest close within 1 year. If the foramen ovale is not closed, it is called a patent foramen ovale, and about 20% of adults ~25% had incomplete closure of the foramen ovale. In general, there is very little right-to-left shunt flow through the patent foramen ovale, which will not cause hemodynamic changes; however, if there is a significant right-to-left shunt in the resting state or induced by specific circumstances, it may cause a A series of serious clinical syndromes, such as stroke, white matter lesion, hypoxemia, migraine, syncope, epilepsy, etc.

There is a close relationship between patent foramen ovale and stroke of unknown cause, and its pathological mechanism is "abnormal embolism" of the brain, that is, through the patent foramen ovale, the following emboli enter the left heart system and cause corresponding clinical symptoms : ① lower extremity deep vein or pelvic vein thrombosis; ② air embolus caused by diving sickness or decompression sickness; ③ fat embolus formed after surgery or trauma. For patients with PFO patients who have experienced thrombotic events such as stroke, the risk of recurrence is still high.

At present, the monitoring methods for patent foramen ovale-right-to-left shunt mainly include transesophageal echocardiography (cTEE), transcranial Doppler (cTCD) and transthoracic echocardiography (cTTE). Among them, cTEE is a semi-invasive examination, the patient is more painful during the operation, and it is difficult to cooperate with the Valsalva maneuver; although cTCD is non-invasive, its disadvantage is that it is difficult to distinguish the source of RLS; therefore, cTTE is currently used clinically for patent foramen ovale-right to left Triage screening.

However, during the cTTE operation, the examiner needs to cooperate with the Valsalva maneuver, and at the same time, the patient needs to be intravenously injected with a mixture of saline, blood, and air. Currently, there is no device that can assist this process, which makes the patient face Problems that don't work well together.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the purpose of this utility model is to provide a right heart contrast-enhanced acoustic imaging auxiliary inspection system, which can assist the examiner to adjust the body position and perform Valaslva action during the cTTE examination, so that the examiner can better Cooperate well with doctors to facilitate the smooth operation.

In order to achieve the above tasks, the utility model adopts the following technical solutions:

A right heart acoustic contrast-enhanced auxiliary examination system, comprising an examination chair, the examination chair comprises a chair surface, an angle-adjustable chair back is installed at the rear end of the chair surface, and pedals are movably installed at the front end of the chair surface; the chair back An air blowing detection device is arranged on the side, and the air blowing detection device includes an air blowing pipe and a display screen, wherein an electronic pressure gauge is integrated on the display screen, the air blowing pipe is connected with the electronic pressure gauge through the air guide tube, and the reading of the electronic pressure gauge is passed through the The display shows.

Further, the side of the chair back is provided with a first sleeve, and the bottom of the display screen is provided with a second sleeve, and the first sleeve and the second sleeve are connected by a bracket; the bracket includes two parallel The rotating rods are arranged, and the rotating rods are connected by connecting rods.

Further, the outer wall of the air blowing pipe is provided with a ring groove along the circumferential direction, one end of the air blowing pipe is detachably provided with a mouth cover, and the other end of the air blowing pipe is connected to the air guiding pipe; There is an L-shaped insertion rod, and one side of the back of the chair is provided with a fixing plate, and the fixing plate is provided with a fixing ring matched with the insertion rod.

Further, the side of the back of the chair is provided with an injection platform, the injection platform includes a bottom plate, and a top plate parallel to the bottom plate is arranged above the bottom plate, and the top plate and the bottom plate are connected by a side plate, and the side plate is located on the bottom plate and is away from the chair back. On the edge of the side; the top board and the side board are both transparent structures.

Further, the chair back is provided with a concave surface along the length direction, a headrest is provided in the concave surface, and a replaceable pillowcase is provided on the headrest.

Further, the front end of the chair surface is hinged with a leg support plate, and the pedal is installed on the leg support plate; a pair of limiting sleeves are arranged on the pedal, and an accommodating cavity is arranged in the limiting sleeve.

Further, the bottom of the chair surface is installed on a chassis through a height-adjustable column, and rollers with locks are arranged on the bottom of the chassis, and the height of the column is adjusted through a height adjustment plate arranged on the side of the column.

Further, the chair back is hinged on the chair surface, and the back of the chair back is provided with a chute along the length direction, and the front end and the rear end of the chute are respectively provided with a front stopper and a rear stopper; The slider is equipped with an adjusting rod hinged on the slider through the first rotating shaft, and the end of the adjusting rod is hinged on the chassis through the second rotating shaft; the motor is provided on the column, and the output shaft of the motor is provided with The wire take-up wheel is wound with a backguy, and the backguy is connected with the slider.

Further, an injection device is provided on the injection platform, and the injection device includes a three-way valve with an adjustment knob, and the three channels of the three-way valve are respectively connected with a first syringe, a second syringe and a puncture needle.

The utility model has the following technical characteristics:

1. This utility model provides a set of systems that can assist the examiner to correct the body position, perform Valaslva movements, and at the same time assist the doctor to configure and inject liquids. This system can complete all preparations before radiography during cTTE examinations, providing medical staff with It brings great convenience, and at the same time enables the examiner to better cooperate with the doctor's operation;

2. The utility model adopts a visual pressure detection system. When the patient is performing Valaslva action, he can understand the current blowing pressure well at different angles, so that the Valaslva action is more in line with the standard, which is conducive to the improvement of the image effect during the contrast examination. reflect;

3. The angle adjustment device in this utility model is controlled by an ultrasound doctor, and can adjust the position of the examiner, thereby affecting the blood flow state in the heart and making the image effect better;

4. The injection platform of the utility model is convenient for medical staff to take blood and configure the mixed injection liquid, and has an anti-splash function, making the configuration process more standardized and efficient;

5. The mouth cover, pillow cover and other parts in the utility model are disposable and replaceable products, so as to ensure the safety and sanitation of the system and avoid cross-infection among different examiners.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the structural representation of punching bag in the air blowing detection device;

Fig. 3 is the schematic diagram of injection configuration part;

Fig. 4 is the structural representation of the back of the chair back;

The symbols in the figure represent: 1—chair back, 2—concave surface, 3—headrest, 4—seat surface, 5—leg support plate, 6—pedal, 7—groove, 8—limiting sleeve, 9—display screen, 10—injection platform, 11—side plate, 12—top plate, 13—bottom plate, 14—blowing detection device, 15—fixed ring, 16—fixed plate, 17—bracket, 18—second sleeve, 19—first Sleeve, 20—air duct, 21—side baffle, 22—adjusting rod, 23—motor, 24—chassis, 25—second rotating shaft, 26—roller, 27—guy wire, 28—height adjustment plate, 29—column , 30—front block, 31—rear block, 32—slider, 33—chute, 34—first shaft, 35—mouth cover, 36—blow pipe, 37—ring groove, 38—insert rod, 39 - first syringe, 40 - second syringe, 41 - adjustment knob, 42 - first channel, 43 - second channel, 44 - third channel, 45 - puncture needle, 46 - console.

detailed description

The system of the present utility model is set up for cTTE inspection and radiography. Before the contrast examination, it is necessary to inject a mixture of blood, normal saline and air into the examiner's vein, so that a large number of air bubbles in the right atrium can be seen under direct ultrasound. After the blowing pressure reaches above 40mmHg, the pressure of the right chest cavity can be increased, and the shunt from the right atrium to the left atrium can be promoted. At this time, after the patient is quickly relaxed, a large number of bubbles can be seen in the left atrium under echocardiography, confirming that there is Massive shunt through the foramen ovale. The inventor has learned from work experience that when the body position is changed from the supine position to the semi-recumbent position or the upright position, the blood flow from the right atrium to the left atrium in the resting state will be increased, that is to say, if the patient's upper body is appropriately increased during examination The angle can improve the detection rate of right-to-left shunt in resting state.

According to the above-mentioned technical scheme, as shown in Fig. 1 to Fig. 4, the utility model discloses a right heart acoustic contrast-enhanced auxiliary examination system, which includes an examination chair, and the examination chair includes a chair surface 4, and the rear end of the chair surface 4 is equipped with a Angle-adjustable chair back 1, the front end of chair surface 4 is movable with pedal 6; the side of described chair back 1 is provided with blowing detection device 14, and blowing detection device 14 includes blowing pipe 36 and display screen 9, wherein, An electronic pressure gauge is integrated on the display screen 9, and the blowing pipe 36 is connected with the electronic pressure gauge through the air guide tube 20, and the reading of the electronic pressure gauge is displayed through the display screen 9.

The main structure of the utility model includes an inspection chair for the patient to lie down and adjust the angle, wherein the chair back 1 is provided with a concave surface 2 along the length direction, and the concave surface 2 can make the examiner more comfortable after lying down; the concave surface 2 is provided with The headrest 3 is provided with a replaceable pillowcase. The front end of the seat surface 4 is hinged with a leg support plate 5, and the pedal 6 is mounted on the leg support plate 5; a pair of spacer sleeves 8 are arranged on the pedal plate 6, and an accommodation cavity is arranged in the spacer sleeve 8. As shown in Figure 1, the limit sleeve 8 is a 1/4 spherical structure, part of the edge of the limit sleeve 8 is connected to the pedal 6, and the rest is not connected, so the front end of the examiner's foot can be inserted into the limit sleeve 8 in the accommodation cavity. Like this, after the examiner lies down, the foot can be tilted upwards slightly to meet the physiological posture, and the foot can be borrowed through the limit sleeve 8 simultaneously to avoid the patient from feeling uncomfortable. In addition, grooves 7 are provided on the leg supports 5 to make the lower legs more comfortable, and side baffles 21 are provided on both sides of the seat surface 4 .

In this scheme, the bottom of the chair surface 4 is installed on a chassis 24 through a height-adjustable column 29, and the bottom of the chassis 24 is provided with a roller 26 with a wheel lock. The hydraulic device is housed in the column 29, and the height of the column 29 Adjustment is carried out by a height adjustment plate 28 arranged on the side of the column 29 .

Furthermore, a specific device for adjusting the angle of the seat back 1 is proposed in this proposal:

The chair back 1 is hinged on the chair surface 4, and the back of the chair back 1 is provided with a chute 33 along the length direction, and the front end and the rear end of the chute 33 are respectively provided with a front stopper 30 and a rear stopper 31; A slide block 32 is assembled in the chute 33, the slide block 32 is hinged with the adjusting rod 22 through the first rotating shaft 34, and the end of the adjusting rod 22 is hinged on the said chassis 24 through the second rotating shaft 25; 29 is provided with a motor 23, and the output shaft of the motor 23 is provided with a take-up wheel, and a backguy 27 is wound on the take-up wheel, and the backguy 27 is connected with the slide block 32. As shown in Figures 1 and 4, when the motor 23 drives the take-up reel to rotate, the take-up reel begins to wind the backguy 27. At this time, the backguy 27 drags the slider 32 to move in the direction of the rear stopper 31. At this time, the adjustment rod 22 Under the effect of the chair back 1 will be packed up towards the side of the seat surface 4; and when the chair back 1 needs to be put down, it is only necessary to reversely rotate the motor 23 to get final product.

A console 46 is arranged on the side of the chassis 24, and a control button is arranged on the console 46. The control button is used to control the forward rotation and overturn of the motor 23, and is controlled by the sonographer by pedaling.

In this program, the most important part of the patient's cooperation with the examination is to perform the Valaslva maneuver, that is, the patient needs to inflate to a certain pressure value and maintain it for a certain period of time. In order to facilitate precise operation, an air blow detection device 14 is provided in this solution. The pressure of the blown gas is measured by the electronic pressure gauge, and is displayed on the display screen 9, and the examiner can intuitively see whether the current blowing pressure meets the requirements. As shown in Figure 2, in this scheme, an annular groove 37 is provided along the circumferential direction on the outer wall of the air blowing pipe 36, and the annular groove 37 can be conveniently held by the inspector; one end of the air blowing pipe 36 is detachably provided with a mouth cover 35, and the mouth The sleeve 35 is a disposable plastic structure, which is replaced after use; the other end of the air blowing pipe 36 is connected to the air guide tube 20, and the air guide tube 20 adopts a bellows, which has a telescopic function; Inserting rod 38, one side of the chair back 1 is provided with a fixing plate 16, and the fixing plate 16 is provided with a fixing ring 15 matched with the inserting rod 38. After the air blow detection device 14 is used, insert the insert rod 38 into the fixing ring 15 to fix it.

As shown in Figure 1, the side of the chair back 1 is provided with a first sleeve 19, and the bottom of the display screen 9 is provided with a second sleeve 18, and the bracket 17 is passed between the first sleeve 19 and the second sleeve 18. Connection; the bracket 17 includes two rotating rods arranged in parallel, the rotating rods are connected by connecting rods, and the two rotating rods are respectively inserted into the first sleeve 19 and the second sleeve 18 . The setting of the bracket 17 makes the display screen 9 rotatable, which is convenient for adjusting a suitable angle. The above-mentioned fixed plate 16 can be fixed on the support 17, so that the whole set of blowing detection device 14 can be taken off as a whole after use, or turned aside.

In order to cooperate with injecting liquid to the patient during ultrasonic examination, an injection platform 10 is provided on the side of the chair back 1 in this solution. They are connected by a side plate 11, which is located on the edge of the bottom plate 13 away from the side of the chair back 1; the top plate 12 and the side plate 11 are both transparent structures. Such a structure of the injection platform 10 enables the patient's arm to extend into the injection platform 10 to collect blood, and when the medical staff operates, both hands can enter the platform from both sides; the role of the top plate 12 and the side plate 11 Yes, prevent contamination from spilled liquid during blood and saline mixing operations.

As shown in Figure 3, an injection device is provided on the injection platform 10, and the injection device includes a three-way valve with an adjustment knob 41, and the three passages of the three-way valve are respectively connected with a first syringe 39, a second syringe 40 and a Puncture needle 45. The three passages of the three-way valve are the first passage 42, the second passage 43 and the third passage 44, wherein the first syringe 39 on the first passage 42 is equipped with physiological saline, and a small amount of air is housed in the second syringe 40 .

When in use, use the puncture needle 45 to establish a venous access at the patient's cubital vein, and then connect the three-way valve. After confirming that the venous access is unobstructed, use the second syringe 40 to draw back 1ml of blood, and inject normal saline, blood and air into the first syringe. 39. The second syringe 40 is pushed back and forth, so that the three are fully mixed and stored in the same syringe, and then the mixed liquid is quickly injected into the vein of the examiner; after the injection, the patient starts to use the blowing detection device 14, and the patient blows After inflating, when the measured insufflation pressure is greater than 40mmHg, hold the air for about 10 seconds and release the air quickly, and observe the development of the left microbubbles after the air is released.

In addition, in the present utility model, a hydraulic device 47 is movably installed on the chassis, and the output end of the hydraulic device 47 is supported on the back of the leg support 5 . The hydraulic device 47 is driven, and after the output end of the hydraulic device 47 is extended, the leg supporting board 5 can be lifted until it is parallel or approximately parallel to the seat surface 4 . After the chair back 1 is laid down, the entire surface of the chair can be made horizontal, so as to meet the actual needs of different patients.

Claims (9)

1. An auxiliary inspection system for right heart acoustic contrast imaging, comprising an inspection chair, the inspection chair includes a chair surface (4), characterized in that an angle-adjustable chair back (1) is installed at the rear end of the chair surface (4) , the front end of the chair surface (4) is movable with a pedal (6); the side of the chair back (1) is provided with a blowing detection device (14), and the blowing detection device (14) includes a blowing pipe (36) and a display screen (9), wherein an electronic pressure gauge is integrated on the display screen (9), the air blowing pipe (36) is connected with the electronic pressure gauge through the air guide tube (20), and the reading of the electronic pressure gauge is passed through the display screen (9) show. 2. The right heart acoustic contrast-enhanced auxiliary inspection system according to claim 1, characterized in that, the side of the chair back (1) is provided with a first sleeve (19), and the bottom of the display screen (9) A second sleeve (18) is provided, and the first sleeve (19) and the second sleeve (18) are connected by a bracket (17); the bracket (17) includes two rotating rods arranged in parallel, between the rotating rods are connected by connecting rods. 3. The right heart acoustic contrast-enhanced auxiliary inspection system according to claim 1, characterized in that, the outer wall of the blowing tube (36) is provided with a ring groove (37) along the circumferential direction, and one end of the blowing tube (36) A mouth cover (35) is detachably provided, and the other end of the air blowing pipe (36) is connected to the air guide pipe (20); an L-shaped insertion rod (38) is arranged on the outer wall of the air blowing pipe (36), One side of the chair back (1) is provided with a fixed plate (16), and the fixed plate (16) is provided with a fixed ring (15) cooperating with the insertion rod (38). 4. The right heart acoustic contrast-enhanced auxiliary inspection system according to claim 1, characterized in that, the side of the chair back (1) is provided with an injection platform (10), and the injection platform (10) includes a base plate (13), A top plate (12) parallel to the bottom plate (13) is arranged above the bottom plate (13), the top plate (12) and the bottom plate (13) are connected by a side plate (11), and the side plate (11) is located on the bottom plate (13) On the edge of the side away from the chair back (1); the top board (12) and the side board (11) are transparent structures. 5. The right heart acoustic contrast-enhanced auxiliary inspection system according to claim 1, characterized in that, the chair back (1) is provided with a concave surface (2) along the length direction, and the concave surface (2) is provided with a headrest ( 3), the headrest (3) is provided with a replaceable pillowcase. 6. The right heart acoustic contrast-enhanced auxiliary inspection system according to claim 1, characterized in that, the front end of the chair surface (4) is hinged with a leg support (5), and the pedal (6) is installed on the leg support On the board (5); on the pedal (6) is provided with a pair of spacer sleeves (8), and the spacer sleeves (8) are provided with accommodating cavities. 7. The right heart acoustic contrast-enhanced auxiliary inspection system according to claim 1, characterized in that, the bottom of the chair surface (4) is installed on a chassis (24) through a height-adjustable column (29), and the chassis ( 24) The bottom is provided with a roller (26) with a lock, and the height of the column (29) is adjusted through a height adjustment plate (28) arranged on the side of the column (29). 8. The right heart acoustic contrast-enhanced auxiliary inspection system according to claim 7, characterized in that, the chair back (1) is hinged on the chair surface (4), and the back of the chair back (1) is provided with a Chute (33), the front end of chute (33), rear end are respectively provided with front block (30), rear block (31); Slide block (32) is assembled in the described chute (33), The slider (32) is hinged with an adjustment lever (22) by the first rotating shaft (34), and the end of the adjustment rod (22) is hinged on the described chassis (24) by the second rotating shaft (25); The column (29) is provided with a motor (23), the output shaft of the motor (23) is provided with a take-up wheel, and the take-up wheel is wound with a backguy (27), and the backguy (27) and the described slide block (32) connect. 9. The right heart contrast-enhanced acoustic imaging auxiliary inspection system according to claim 4, characterized in that an injection device is provided on the injection platform (10), and the injection device includes a three-way valve with an adjustment knob (41) , the three passages of the three-way valve are respectively connected with a first syringe (39), a second syringe (40) and a puncture needle (45).