CN111557682B

CN111557682B - Auxiliary pipeline device of single-cylinder CT high-pressure injector and CT high-pressure radiography equipment

Info

Publication number: CN111557682B
Application number: CN202010520558.8A
Authority: CN
Inventors: 郑吟诗; 韩雪迎; 李春荣; 石风光; 董备; 郭诗梦; 孙晓彤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2023-02-28
Anticipated expiration: 2040-06-10
Also published as: CN111557682A

Abstract

The invention relates to the technical field of medical instruments, in particular to an auxiliary pipeline device of a single-cylinder CT high-pressure injector and a CT high-pressure radiography device, which realize the quick and accurate switching of a contrast agent and normal saline at any time and obviously reduce the excessive use of the contrast agent; the auxiliary pipe device comprises: the electromagnetic control device comprises a base, an electromagnetic push rod assembly and an upper cover, a strip-shaped groove is formed in the middle of the base, and an electromagnetic push rod in the electromagnetic push rod assembly is arranged in the strip-shaped groove; the left end and the right end of the strip-shaped groove are respectively provided with a first pipe groove and a second pipe groove which are parallel to each other; the double-Y-shaped pipeline system comprises an input end connected with the single-cylinder CT high-pressure injector, an output end connected with the indwelling needle, a first infusion tube and a second infusion tube, wherein the input end and the output end are communicated with the first infusion tube and the second infusion tube, and the first infusion tube and the second infusion tube are correspondingly placed in the first tube groove and the second tube groove.

Description

Auxiliary pipeline device of single-cylinder CT high-pressure injector and CT high-pressure radiography equipment

Technical Field

The invention relates to the technical field related to medical instruments, in particular to an auxiliary pipeline device of a single-cylinder CT high-pressure injector, CT high-pressure radiography equipment and a using method thereof.

Background

In recent years, with the popularization of high-end CT devices, CT high-pressure contrast examination is widely applied to clinical vascular or organ enhancement examination due to the characteristics of fast scanning, clear image, convenience, rapidness and the like, and makes a great contribution to disease diagnosis. In order to obtain an accurate enhancement phase for diagnosis and treatment of a lesion, the application of a high-pressure contrast apparatus for rapid injection of a contrast medium is a necessary step, and the following cases need to be considered: (1) because the contrast medium is injected under high pressure and quickly, and the contrast medium is sometimes extravasated, which brings adverse effects to patients, in order to prevent the contrast medium from extravasating, the injection of the physiological saline is preferably tried before the injection of the contrast medium; (2) in order to promote the excretion of the contrast medium and maintain a certain pressure, a proper amount of physiological saline is also required to be followed after the contrast medium is injected; (3) due to individual differences, the contrast agent dosage required by each person is different, particularly, angiography is generally required to be only 50ml to 80ml, but most hospitals use the contrast agent quantitatively at present and need to set the injection dosage in advance. The CT high-voltage radiography equipment used at home and abroad at present has the following defects: 1. as shown in fig. 4, the single-barrel high-pressure injector can only use contrast medium alone, cannot use physiological saline, cannot perform trial injection, and cannot well meet clinical requirements; 2. even if the dual-barrel high-pressure injector can use the contrast medium and the physiological saline simultaneously, the contrast medium and the physiological saline cannot be switched rapidly, the injection of the contrast medium cannot be stopped in time, and the injection of the physiological saline can be performed after the set contrast medium is injected, so that a part of patients can be injected with unnecessary contrast medium more, and the probability of anaphylactic reaction or contrast medium nephropathy can be increased.

Disclosure of Invention

The invention provides an auxiliary pipeline device of a single-cylinder CT high-pressure injector, which realizes that the injection of a contrast medium and physiological saline is finished by the same device, can quickly and accurately switch the contrast medium and the physiological saline at any time, meets the requirement that a patient uses the contrast medium individually, obviously reduces the incidence rate of adverse reactions and obviously reduces the medical risk caused by the excessive contrast medium.

Therefore, the technical scheme adopted by the invention is as follows:

a single-cylinder CT high-pressure syringe auxiliary pipeline device comprises an electromagnetic control device and a double-Y-shaped pipeline system, wherein the electromagnetic control device comprises a base, an electromagnetic push rod assembly and an upper cover hinged to one side of the base, the upper cover is clamped to the other side of the base, a strip-shaped groove is formed in the middle of the base, and an electromagnetic push rod in the electromagnetic push rod assembly is arranged in the strip-shaped groove; a first pipe groove and a second pipe groove are respectively formed in the left end and the right end of the strip-shaped groove, and the first pipe groove and the second pipe groove are parallel to each other; the double-Y-shaped pipeline system comprises an input end, an output end, a first infusion tube and a second infusion tube, wherein the input end is used for being connected with the single-cylinder CT high-pressure injector, the output end is used for being connected with the indwelling needle, the input end and the output end are communicated with the first infusion tube and the second infusion tube, and the first infusion tube and the second infusion tube are correspondingly placed in the first tube groove and the second tube groove.

As a preferred mode of the invention, in order to make the electromagnetic control process more efficient, convenient and more compact and reasonable in structure: the electromagnetic push rod assembly comprises an electromagnetic push rod, a control module, a control switch, a left static iron core, a first coil, a right static iron core and a second coil, wherein a left iron core groove and a right iron core groove are respectively arranged on the left outer side and the right outer side of a first pipe groove and a second pipe groove, the left static iron core and the right static iron core are respectively arranged in the left iron core groove and the right iron core groove, the first coil is wound outside the left static iron core, the second coil is wound outside the right static iron core, and the control switch is electrically connected with the control module, the first coil and the second coil through wires; when the control switch controls the first coil on the left side to be electrified through the control module, the second coil on the right side is not electrified, so that the left static iron core attracts the electromagnetic push rod to the left, and the left end part of the electromagnetic push rod is pressed against the first infusion tube; when the control switch controls the second coil on the right side to be electrified through the control module, the first coil on the left side is not electrified, so that the static iron core on the right side attracts the electromagnetic push rod to the right side, and the right end part of the electromagnetic push rod is abutted against the second infusion tube.

A CT high-pressure contrast equipment, comprising a machine body and a single-cylinder CT high-pressure injector, comprising the auxiliary pipeline device of the single-cylinder CT high-pressure injector in claim 1, wherein an electromagnetic control device is arranged on the machine body.

The use method of the CT high-voltage contrast equipment comprises the following steps:

turning on a switch of a CT high-pressure radiography device to enter a working state, sucking normal saline by using a single-cylinder CT high-pressure injector, connecting the single-cylinder CT high-pressure injector with an input end of a double-Y-shaped pipeline system, injecting the normal saline into the double-Y-shaped pipeline system, and after exhausting, respectively placing a first infusion tube and a second infusion tube into a first tube groove and a second tube groove on two sides of an electromagnetic control device;

step (2) starting the electromagnetic push rod to move rightwards to press against a second infusion tube, so that the infusion pipeline for circulating the physiological saline is cut off; at the moment, the first infusion tube and the second infusion tube are filled with normal saline, the infusion valve on the infusion tube is closed, and then the double Y-shaped pipeline system and the infusion tube are disassembled together;

step (3) a single-cylinder CT high-pressure injector is used again for sucking contrast media and exhausting air, and then the single-cylinder CT high-pressure injector and the exhaust air are connected with a double-Y-shaped pipeline system and a transfusion tube together, and the transfusion tube is connected with a preset indwelling needle of a patient; opening the infusion valve, and trying to inject the physiological saline in the first infusion tube, wherein the contrast agent enters the first infusion tube;

and (4) if no extravasation condition exists in the test injection, starting to prepare for injecting a contrast medium, observing through images, and when the dosage of the contrast medium reaches a standard dosage, starting to control the electromagnetic push rod to move leftwards to press the first infusion tube, so that the infusion tube of the contrast medium is cut off, the second infusion tube is relaxed, the physiological saline tube is unblocked, and then the examination can be completed by injecting the physiological saline.

Compared with the prior art, the invention has the following remarkable advantages:

the device skillfully uses the double-Y-shaped pipeline system, and presses the pipe walls of the first infusion pipe and the second infusion pipe in the double-Y-shaped pipeline system through the reciprocating motion of the electromagnetic push rod to realize the circulation or the cut-off of the first infusion pipe and the second infusion pipe.

The device, the equipment and the method have the following beneficial effects: (1) The invention realizes that the same device simultaneously contains the contrast agent and the physiological saline and completes the injection of the contrast agent and the physiological saline; (2) The device, the equipment and the equipment method of the invention realize the purpose that the physiological saline is used for trial injection before the contrast agent is injected, and the physiological saline can be followed in time after the contrast agent is injected, thereby meeting the regulation requirement of the patient for safely checking the body; (3) By using the device, the equipment and the method, the contrast agent and the physiological saline can be switched at any time, the switching is quick, accurate and convenient, a proper amount of contrast agent can be used according to individual differences of patients, and the contrast agent amount entering the body of the patient is reduced as much as possible while the normal contrast agent pushing dosage is met. (4) The electromagnetic control part in the device belongs to a matching device of high-pressure radiography equipment, and the pipeline system belongs to auxiliary consumable materials of a high-pressure radiography injector, so that no extra cost is generated, and the economic burden of a patient is not increased; (5) Compared with a double-cylinder high-pressure radiography device, the device can reduce the dosage of a high-pressure injection syringe by half and obviously reduce the cost of a patient. (6) The invention has the advantages of ingenious design, simple structure, convenient operation and strong practicability, overcomes the problem that the dosage of the contrast agent of the traditional device is not easy to control, can reduce the dosage of the contrast agent of a patient, reduce examination time and medical cost while carrying out normal examination, improves medical quality and has strong popularization and application values.

Drawings

FIG. 1 is a schematic view of the overall structure of the auxiliary piping unit of the present invention;

FIG. 2 is a schematic view of the structure of the electromagnetic control device of the auxiliary piping unit of the present invention;

FIG. 3 is a schematic view of a CT high pressure radiography apparatus of the present invention;

fig. 4 is a schematic diagram of a single-barrel CT high-pressure contrast device (including a CT high-pressure injector) of the prior art.

Description of reference numerals:

1. input 2, first transfer line 3, electromagnetic control device 4, base, 5 electromagnetism push rod 6, bar recess 7, output 8, second transfer line 9, first tube seat 10, second tube seat 11, right side quiet iron core 12, right side quiet iron core groove 13, first coil 14, left side quiet iron core 15, right side iron core groove 16, second coil 17, electromagnetism push rod subassembly 18, upper cover 19, organism 20, single-cylinder CT high pressure syringe 21, link 22, joint 23, transfer line 24, transfusion valve.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 and 2, an auxiliary pipe device of a single-cylinder CT high-pressure syringe comprises an electromagnetic control device 3 and a double-Y-shaped pipe system, wherein the electromagnetic control device 3 comprises a base 4, an electromagnetic push rod assembly 17 and an upper cover 18 hinged to one side of the base 4, the upper cover 18 is clamped to the other side of the base 4, a strip-shaped groove 5 is arranged in the middle of the base 4, a first pipe groove 9 and a second pipe groove 10 are respectively arranged at the left end and the right end of the strip-shaped groove 5, the first pipe groove 9 and the second pipe groove 10 are parallel to each other, the left end and the right end of the strip-shaped groove 5 are respectively communicated with the first pipe groove 9 and the second pipe groove 10, the double-Y-shaped pipe system comprises an input end 4 connected with the single-cylinder CT high-pressure syringe 20, an output end 7 connected with an indwelling needle (not shown in the figure), a first pipe 2 and a second pipe 8, the double-Y-shaped pipe system represents a three-way pipe, the input end 4 or the output end 7 is ' one-way ', the first pipe 2 and the second pipe 8 ' are respectively communicated with the first pipe, the second pipe, and the traditional infusion tube 8, and the special infusion tube system is formed by the traditional infusion tube system. The first infusion tube 2 and the second infusion tube 8 are made of soft materials, and are made of medical transparent soft polyvinyl chloride plastics or high-performance polyolefin elastic plastics. The first infusion tube 2 and the second infusion tube 8 are correspondingly placed in the first tube groove 9 and the second tube groove 10. The input end 1 and the output end 7 extend out of the base 4 so as to be convenient for dismounting the single-cylinder CT high-pressure injector 20 and connecting an indwelling needle. The output end 7 of the double Y-shaped pipeline system is connected with a section of infusion tube 23 through a joint 22, the end of the infusion tube 23 can be connected with an indwelling needle (not shown), and an infusion valve 24 is arranged on the pipeline of the infusion tube 23.

The electromagnetic push rod assembly 17 is a device for realizing the reciprocating motion by using the characteristics of an electromagnet, and belongs to the prior art, and the specific structural form of the electromagnetic push rod assembly 17 of the present invention is not limited by the following embodiments. In this embodiment, the electromagnetic push rod assembly 17 includes an electromagnetic push rod 5, a control module (not shown in the figure), a control switch (not shown in the figure), a left-side stationary iron core 14, a first coil 16, a right-side stationary iron core 11, a second coil 13, etc., in the first pipe groove 9, a left-side iron core groove 15 is respectively arranged on the left and right outer sides of the second pipe groove 10, a right-side iron core groove 12, a left-side iron core groove 15, a left-side stationary iron core 14 is respectively arranged in the right-side iron core groove 12, a right-side stationary iron core 11 is arranged on the outer side of the left-side stationary iron core 14, a first coil 16 is wound on the outer side of the right-side stationary iron core 11, a second coil 13 is wound on the outer side of the right-side stationary iron core 11, the control switch passes through a wire and the control module, the first coil 16 and the second coil 13 are electrically connected, the control switch can be arranged in an image observation machine room, which is convenient for medical staff to observe and control the start and stop of the electromagnetic push rod 5. When the machine room is far away from the body of the CT radiography equipment, the invention can also adopt a remote wireless control switch mode, and the invention can be realized by the technical personnel in the field, and the detailed description is not needed.

When the control switch controls the first coil 16 on the left side to be electrified through the control module and controls the second coil 13 on the right side to be not electrified, the left static iron core 14 attracts the electromagnetic push rod 5 to the left, the left end part of the electromagnetic push rod 5 is abutted against the first infusion tube 2, the first infusion tube 2 is stopped, and the second infusion tube 8 is communicated; when the control switch controls the second coil 13 on the right side to be electrified through the control module and controls the first coil 16 on the left side not to be electrified, the right static iron core 11 attracts the electromagnetic push rod 5 to the right, the right end part of the electromagnetic push rod 5 is abutted against the second infusion tube 8, the first infusion tube 2 is communicated, and the second infusion tube 8 is stopped; therefore, the saline and the contrast agent can be quickly and accurately switched.

As shown in fig. 3, a CT high-pressure contrast apparatus comprises a body 19, a single-cylinder CT high-pressure injector 20, and an auxiliary conduit device of the single-cylinder CT high-pressure injector as claimed in the present invention, wherein an electromagnetic control device 3 of the auxiliary conduit device of the injector is mounted on the body 19 of the CT high-pressure contrast apparatus through an outwardly extending connecting frame 21.

The invention also comprises a using method of the CT high-voltage contrast equipment, which comprises the following steps:

step (1) turning on a switch of the CT high-pressure radiography equipment in the picture 3 to enter a working state, sucking normal saline by using a single-cylinder CT high-pressure injector 20, connecting the single-cylinder CT high-pressure injector 20 with an input end 1 of a double-Y-shaped pipeline system, injecting the normal saline into the double-Y-shaped pipeline system, and after exhausting, respectively placing a first infusion tube 2 and a second infusion tube 8 into a first tube groove 9 and a second tube groove 10 at two sides of an electromagnetic control device 3; and the upper cover 18 of the electromagnetic control device 3 is buckled;

step (2), starting the electromagnetic push rod 5 to move rightwards to press the second infusion tube 8, so that the infusion pipeline for circulating the physiological saline is cut off; at the moment, the first infusion tube 2 and the second infusion tube 8 are filled with normal saline, the infusion valve 24 on the infusion tube 23 is closed, and then the double Y-shaped pipeline system and the infusion tube 23 are detached together;

step (3) the single-cylinder CT high-pressure injector 20 is used again for sucking contrast medium and exhausting air, then the contrast medium and the exhaust air are connected with the double-Y-shaped pipeline system and the infusion tube 23 together, and the infusion tube 23 is connected with a preset indwelling needle of a patient; opening the infusion valve 24 on the infusion tube 23, and trying to inject the physiological saline in the first infusion tube 2, wherein the contrast agent enters the first infusion tube 2;

and (4) if no extravasation condition exists in the test injection, preparing to inject a contrast medium, observing through an image, starting and controlling the electromagnetic push rod 5 to move leftwards to press the first infusion tube 2 when the dosage of the contrast medium reaches a standard dosage, so that the infusion pipeline of the contrast medium is cut off, the second infusion tube 8 is relaxed, the infusion pipeline of the physiological saline is immediately conducted, the infusion pipeline of the physiological saline is unblocked, the rapid and accurate switching of the infusion pipeline of the contrast medium and the physiological saline is realized, and then the examination can be completed by injecting the physiological saline.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a single-cylinder CT high pressure syringe assists pipe device which characterized in that: the electromagnetic control device (3) comprises a base (4), an electromagnetic push rod assembly (17) and an upper cover (18) hinged to one side of the base (4), the upper cover (18) is connected with the other side of the base (4) in a clamping mode, a strip-shaped groove (6) is formed in the middle of the base (4), and an electromagnetic push rod (5) in the electromagnetic push rod assembly (17) is arranged in the strip-shaped groove (6); a first pipe groove (9) and a second pipe groove (10) are respectively formed in the left end and the right end of the strip-shaped groove (6), and the first pipe groove (9) and the second pipe groove (10) are parallel to each other; the double-Y-shaped pipeline system comprises an input end (1) connected with a single-cylinder CT high-pressure injector (20), an output end (7) connected with a remaining needle, a first infusion tube (2) and a second infusion tube (8), wherein the input end (1) and the output end (7) are communicated with the first infusion tube (2) and the second infusion tube (8), the first infusion tube (2) and the second infusion tube (8) are correspondingly placed in a first tube groove (9) and a second tube groove (10), and the first infusion tube (2) and the second infusion tube (8) are pressed through the reciprocating motion of an electromagnetic push rod (5).

2. The auxiliary pipeline device for the single-cylinder CT high-pressure injector according to claim 1, wherein the electromagnetic push rod assembly (17) comprises an electromagnetic push rod (5), a control module, a control switch, a left static iron core (14), a first coil (16), a right static iron core (11) and a second coil (13), a left iron core groove (15) and a right iron core groove (12) are respectively arranged at the left and right outer sides of the first pipe groove (9) and the second pipe groove (10), the left static iron core (14) and the right static iron core (11) are respectively arranged in the left iron core groove (15) and the right iron core groove (12), the first coil (16) is wound outside the left static iron core (14), the second coil (13) is wound outside the right static iron core (11), and the control switch is electrically connected with the control module, the first coil (16) and the second coil (13) through wires; when the control switch controls the first coil (16) on the left side to be electrified through the control module, the second coil (13) on the right side is not electrified, so that the left static iron core (14) attracts the electromagnetic push rod (5) to the left, and the left end part of the electromagnetic push rod (5) is pressed against the first infusion tube (2); when the control switch controls the second coil (13) on the right side to be electrified through the control module, the first coil (16) on the left side is not electrified, so that the electromagnetic push rod (5) is attracted to the right through the right static iron core (11), and the right end part of the electromagnetic push rod (5) is pressed against the second infusion tube (8).

3. A CT high-pressure radiography equipment comprises a machine body (19) and a single-cylinder CT high-pressure injector (20), and is characterized in that: comprising the auxiliary conduit device for a single-cylinder CT high-pressure syringe as claimed in claim 1, wherein the electromagnetic control device (3) is arranged on the body (19).