CN215134881U

CN215134881U - CT contrast agent extravasation monitoring interruption device and system

Info

Publication number: CN215134881U
Application number: CN202120904119.7U
Authority: CN
Inventors: 唐慧
Original assignee: Xiangya Hospital of Central South University
Current assignee: Xiangya Hospital of Central South University
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-12-14
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a CT contrast agent extravasation monitoring interrupt device, including wearing the device, control terminal and electric valve, it sets up the needle point direction of keeping somewhere the syringe needle on the arm by the monitoring to wear the device, it includes miniature camera to wear the device, the processor unit, data transceiver unit, shell and two wrist straps, processor unit and data transceiver unit set up respectively in the shell inner chamber, miniature camera sets up in the shell top, the shell both sides are connected with a wrist strap respectively, miniature camera orientation is kept somewhere 0.5 centimetre in the position the place ahead of syringe needle point, electric valve sets up in the feed liquor end of keeping somewhere the syringe needle, miniature camera passes through the processor unit and the input of data transceiver unit and control terminal is connected, control terminal's output and electric valve's control end are connected. The utility model also discloses an application method can effectively reduce the emergence of contrast agent seepage, can also in time discover the contrast agent seepage and prevent that the contrast agent from continuing to pour into, alleviates patient's misery.

Description

CT contrast agent extravasation monitoring interruption device and system

Technical Field

The utility model relates to the field of medical treatment, especially, relate to a CT contrast medium extravasation monitoring interrupt device.

Background

CT and magnetic resonance enhancement are carried out before examination, an indwelling needle needs to be implanted into a blood vessel of a patient, then a contrast agent medicine is input into the blood vessel through the indwelling needle and reaches a designated part, the contrast between a normal tissue and a lesion tissue is increased, diagnosis is convenient, in order to ensure that the contrast agent reaches a lesion part in a short time, a high-pressure injector needs to be used for injecting the contrast agent at the speed of 2-7 ml/second, the contrast agent has the physicochemical properties of high viscosity and high osmotic pressure, the problem that the medicine leaks out of the blood vessel is very easy to occur, the contrast agent leaks 20ml or less, namely slight leakage, generally less adverse reaction, 20-40ml is moderate extravasation, more than 40ml is severe extravasation, adverse reaction such as limb swelling, local skin blisters, pain and the like occur after the moderate and severe contrast agent leaks, and periosteum syndrome occurs seriously, increasing the pain of the patient. It has now been found that extravasation is substantially more than moderate and there is a need for devices or methods that can early identify extravasation of contrast agents.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in: to the technical problem that prior art exists, the utility model provides a CT contrast agent extravasation monitoring interrupting device can effectively reduce the emergence of contrast agent seepage, can also in time discover the contrast agent seepage and prevent the contrast agent to continue to pour into, alleviates patient's misery.

In order to solve the technical problem, the utility model provides a technical scheme does:

the utility model provides a CT contrast agent extravasation monitoring interruption device, is including wearing device, control terminal and electric valve, it sets up the needle point direction of keeping somewhere the syringe needle on the arm by the monitoring to dress the device, it includes miniature camera, processor unit, data transceiver unit, shell and two wrist straps to dress the device, processor unit and data transceiver unit set up respectively in the shell inner chamber, miniature camera sets up in the shell top, the shell both sides are connected with a wrist strap respectively, the syringe needle is kept somewhere to the miniature camera orientation, electric valve sets up in the inlet end of keeping somewhere the syringe needle, miniature camera passes through processor unit and data transceiver unit and control terminal's input and connects, control terminal's output and electric valve's control end are connected.

Further, the wearable device further comprises a distance sensor and two support legs, wherein the support legs are respectively arranged at the bottom of the shell, the wrist straps are in one-to-one correspondence with the support legs, each wrist strap is respectively connected with the end of the corresponding support leg, the distance sensor is arranged at the bottom of the shell and is arranged between the two support legs, and the output end of the distance sensor is connected with the input end of the data receiving and sending unit through the processor unit.

Further, the wearing device further comprises a first pressure sensor and an elastic belt arranged between the two wrist straps, the two ends of the elastic belt are respectively connected with the end parts of the two support legs, the first pressure sensor is arranged at the bottom of the elastic belt, and the output end of the first pressure sensor is connected with the input end of the data receiving and sending unit through the processor unit.

Further, the wearable device further comprises an electric heating piece, a relay and a power supply unit, wherein the electric heating piece is arranged at the top of the elastic band, the relay and the power supply unit are respectively arranged in the inner cavity of the shell, the power supply end of the electric heating piece is connected with the power supply unit through the relay, and the output end of the processor unit is connected with the control end of the relay.

Further, the wearable device further comprises a motor and a boss arranged at the front end of the shell, the motor is arranged on the boss, a rotating shaft of the motor is connected with the miniature camera, and the output end of the processor unit is connected with the control end of the motor.

Further, the top of shell is equipped with the recess, miniature camera head sets up in the recess.

Furthermore, the other end of the wrist strap, which is far away from the shell, is respectively provided with a bandage, a buckle or a magic tape.

Furthermore, the elastic band is a rubber band or a silica gel band.

The utility model also provides a CT contrast agent monitoring interrupt system that oozes outward, keep somewhere syringe needle, high-pressure connecting pipe and high-pressure syringe including CT contrast agent monitoring interrupt device that oozes outward and connect gradually, CT contrast agent monitoring interrupt device that oozes outward is arbitrary CT contrast agent monitoring interrupt device that oozes outward, CT contrast agent monitoring interrupt device's electric valve cover locates the outside of high-pressure connecting pipe.

Furthermore, CT contrast medium extravasation monitoring interrupting device still includes second pressure sensor, second pressure sensor sets up in the high pressure syringe output, second pressure sensor and control terminal's input are connected, control terminal's output and the control end of high pressure syringe are connected.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a miniature camera head, medical personnel observe the image near the indwelling needle that miniature camera head shot through control terminal, can in time judge whether the condition of contrast agent seepage takes place, simultaneously the utility model discloses still include electric valve, under the condition of contrast agent seepage takes place again, medical personnel enable the electric valve to close through control terminal, can prevent that the contrast agent from continuing to inject into, avoid the seepage condition more serious, alleviate patient's misery;

2. the utility model comprises a distance sensor arranged at the bottom of the shell of the wearable device, which can reflect the swelling condition of the injection area of the indwelling needle head in real time according to the change of the relative distance of the reference object, avoid the condition that the swelling can not be monitored outside the shooting area of the miniature camera head, and improve the monitoring range;

3. the utility model comprises an elastic belt arranged at the bottom of the shell of the wearing device, wherein the bottom of the elastic belt is provided with a first pressure sensor, which can transmit the pressure information of the epidermis of the injection area of the indwelling needle head in real time, and medical personnel can adjust the flow rate of contrast agent injection according to the pressure information, thereby reducing the uncomfortable feeling of patients and preventing the leakage of the contrast agent;

4. the utility model discloses set up the electric heat piece at the elastic webbing top, in the injection process, processor unit enables the relay switch-on, and the power supply end and the power supply unit of electric heat piece generate heat after switching on to carry out the hot compress to keeping somewhere the syringe needle injection region, make the contrast agent of pouring into reduce the viscosity through heating, reduce the pressure to the blood vessel production, reduce the incidence of contrast agent seepage.

Drawings

Fig. 1 is a system structure diagram of the embodiment of the present invention.

Fig. 2 is a front view of the wearable device in the embodiment of the present invention.

Fig. 3 is a top view of the wearable device in an embodiment of the present invention.

Fig. 4 is a side view of the wearing device in the use state of the embodiment of the present invention.

Fig. 5 is a block diagram of the connection relationship of the electrical components according to the embodiment of the present invention.

Illustration of the drawings: 1-wearing device, 2-control terminal, 3-electric valve, 11-shell, 12-wrist strap, 13-bracket leg, 14-elastic strap, 15-motor, 16-boss, 101-micro camera, 102-processor unit, 103-data transceiver unit, 104-distance sensor, 105-first pressure sensor, 106-electric heating piece, 107-relay, 108-power supply unit.

Detailed Description

The invention will be further described with reference to the drawings and specific preferred embodiments without limiting the scope of the invention.

As shown in fig. 1 to 4, the utility model provides a CT contrast agent extravasation monitoring interruption device, including wearing device 1, control terminal 2 and electric valve 3, wearing device 1 sets up the needle point direction of the needle of keeping somewhere on the arm of being monitored, wearing device includes miniature camera 101, processor unit 102, data transceiver unit 103, shell 11 and two wrist straps 12, processor unit 102 and data transceiver unit 103 set up respectively in shell 11 inner chamber, miniature camera 101 sets up in shell 11 top, shell 11 both sides are connected with a wrist strap 12 respectively, miniature camera 101 is towards keeping somewhere the needle, specifically, the distance is 0.5 centimetre between miniature camera 101 and the needle of keeping somewhere, electric valve 3 sets up in the inlet end of keeping somewhere needle connection high pressure delivery pipe, as shown in fig. 5, miniature camera 101 passes through processor unit 102 and data transceiver unit 103 and control terminal 2's input The end connection, the output of control terminal 2 and the control end of electric valve 3 are connected.

Through the structure, in this embodiment, the image near the indwelling needle that miniature camera 101 shot, and send the image data who shoots to processor unit 102, processor unit 102 receives image data and forwards to data transceiver unit 103, data transceiver unit 103 forwards image data to control terminal 2 again, medical personnel look over the image near the indwelling needle through control terminal 2, if the circumstances such as colour change, the swelling takes place and hair hole increase, then send out the signal to electric valve 3 control end through control terminal 2, thereby enable electric valve 3 to close, prevent that the contrast medium from continuing to inject into, avoid the seepage condition more serious, alleviate patient's misery.

As shown in fig. 4, when the contrast agent leaks, the swelling area is outside the shooting area of the micro-camera 101, therefore, as shown in fig. 2, the wearing device 1 in this embodiment further includes a distance sensor 104 and two support legs 13, the support legs 13 are respectively disposed at the bottom of the housing 11, the wrist bands 12 and the support legs 13 are in one-to-one correspondence, each wrist band 12 is connected with the end of the corresponding support leg 13, the distance sensor 104 is disposed at the bottom of the housing 11 and between the two support legs 13, as shown in fig. 5, the output end of the distance sensor 104 is connected with the input end of the data transceiver unit 103 through the processor unit 102. Through setting up the distance sensor 104 in shell 11 bottom, can reflect the swelling condition in the syringe needle injection region of keeping somewhere in real time according to the change of reference object relative distance, avoid miniature camera head 101 to shoot the condition that the swelling can't be monitored outside the region, perfect the scope of monitoring.

As shown in fig. 2 and 4, the wearing device 1 of the present embodiment further includes a first pressure sensor 105 and an elastic band 14 disposed between the two wrist bands 12, two ends of the elastic band 14 are respectively connected to the ends of the two support legs 13, the first pressure sensor 105 is disposed at the bottom of the elastic band 14, and as shown in fig. 5, an output end of the first pressure sensor 105 is connected to an input end of the data transceiver 103 through the processor unit 102. Elastic band 14 pushes down first pressure sensor 105 and hugs closely the epidermis of the arm monitored, thereby first pressure sensor 105 can monitor the pressure information of keeping somewhere the regional epidermis of syringe needle injection and loop through processor unit 102 and data transceiver unit 103 and send for control terminal 2, medical personnel look over pressure information through control terminal 2, can adjust the velocity of flow that the contrast agent was injected according to pressure information, thereby reduce patient's uncomfortable sense and prevent that the contrast agent seepage from appearing, simultaneously according to the change of different periods pressure information, medical personnel also can judge the condition whether the contrast agent seepage appears, thereby in time handle.

As shown in fig. 2 to 4, the wearable device 1 of the present embodiment further includes an electric heating strip 106, a relay 107 and a power supply unit 108, the electric heating strip 106 is disposed on the top of the elastic band 14, the relay 107 and the power supply unit 108 are respectively disposed in the inner cavity of the housing 11, as shown in fig. 5, the power supply end of the electric heating strip 106 is connected to the power supply unit 108 through the relay 107, and the output end of the processor unit 102 is connected to the control end of the relay 107. In order to reduce the discomfort of the patient, in the embodiment, the indwelling needle injection region is heated through the structure, so that the viscosity of the injected contrast agent is reduced through heating, the pressure generated on blood vessels is reduced, and the occurrence of contrast agent leakage is reduced, but if the contrast agent leakage occurs, the situation of swelling is aggravated through continuing heating, therefore, in the embodiment, the relay 107 is arranged between the electric heating sheet 106 and the power supply unit 108, when the contrast agent leakage occurs, a medical worker sends an instruction to the data transceiver unit 103 through the control terminal 2, the data transceiver unit 103 forwards the instruction to the processor unit 102, and the processor unit 102 stops enabling the relay 107 after receiving the instruction.

As shown in fig. 2 to 4, the wearable device 1 of the present embodiment further includes a motor 15 and a boss 16 disposed at the front end of the housing 11, the motor 15 is disposed on the boss 16, a rotation shaft of the motor 15 is connected to the micro camera 101, and as shown in fig. 5, an output end of the processor unit 102 is connected to a control end of the motor 15. Through the structure, medical care personnel can send instructions to the data receiving and sending unit 103 through the control terminal 2, the data receiving and sending unit 103 forwards the instructions to the processor unit 102, the processor unit 102 enables the motor 15 to rotate positively or negatively after receiving the instructions, and the motor 15 rotates to drive the micro camera 101 to rotate, so that the monitoring range of the micro camera 101 is enlarged, the medical care personnel can adjust the angle of the micro camera 101 according to actual requirements, and therefore a proper image is obtained.

In this embodiment, the power supply unit 108 may be connected to power supply terminals of the motor 15, the micro camera 101, the processor unit 102, the data transceiver unit 103, the distance sensor 104, and the first pressure sensor 105, respectively, to supply power to these electrical components.

In this embodiment, the control terminal 2 is a PC, and the processor unit 102 is a PLC.

In this embodiment, the elastic band 14 is a rubber band or a silica gel band, and the thickness is 0.5-1.5 mm.

In this embodiment the top of the housing 11 is provided with a groove, and the micro-camera 101 is disposed in the groove to avoid collision between the micro-camera 101 and the top of the housing 11.

In this embodiment, the other end of the wrist band 12 away from the housing is provided with a strap, a buckle or a hook and loop fastener.

This embodiment still provides a CT contrast medium extravasation monitoring interrupt system, as shown in fig. 1, including CT contrast medium extravasation monitoring interrupt device and the syringe needle of keeping somewhere, high-pressure connecting pipe and the high-pressure syringe that connects gradually, CT contrast medium extravasation monitoring interrupt device be arbitrary CT contrast medium extravasation monitoring interrupt device, CT contrast medium extravasation monitoring interrupt device's 3 covers of electric valve locate the outside of high-pressure connecting pipe.

As shown in fig. 1, the CT contrast agent extravasation monitoring interruption device further comprises a second pressure sensor, the second pressure sensor is arranged at the output end of the high-pressure syringe, the second pressure sensor is connected with the input end of the control terminal 2, and the output end of the control terminal 2 is connected with the control end of the high-pressure syringe. Through above-mentioned structure, medical personnel can look over high-pressure syringe's injection pressure through control terminal 2, and when electric valve 3 closed or the high-pressure connecting pipe appeared blockking up, the pressure value that second pressure sensor returned constantly increased, consequently avoided high-pressure syringe to damage medical personnel and sent the instruction through control terminal 2 and stop high-pressure syringe work.

The following describes the specific operation of the CT contrast medium extravasation monitoring interruption device of the present embodiment:

before injection begins, the processor unit 102 acquires a current image through the micro camera 101, acquires current distance information through the distance sensor 104, acquires current pressure information through the first pressure sensor 105, and sends the current image, the current distance information and the current pressure information to the control terminal 2 through the data transceiving unit 103, medical personnel check the current image, the current distance information and the current pressure information received by the control terminal 2, if the current image meets requirements, the current image is used as an original image, the current distance information is used as original distance information, the current pressure information is used as original pressure information, otherwise, the control terminal 2 is operated to send a motor instruction to the data transceiving unit 103, the data transceiving unit 103 sends the motor instruction to the processor unit 102, the processor unit 102 enables the motor 15 to rotate forwards or backwards according to the motor instruction, then acquires the current image, the current distance information and the current pressure information and sends the current image, the current distance information and the current pressure information to the control terminal through the data transceiving unit 103, until the current image meets the requirements;

after the injection is started, the medical staff operates the control terminal 2 to send a heating instruction to the data transceiver 103, the data transceiver 103 sends the heating instruction to the processor 102, the processor 102 enables the relay 107 to be connected with the power supply 108 and the electric heating sheet 106 according to the heating instruction, the micro-camera 101 obtains a current image, the distance sensor 104 obtains current distance information, the pressure sensor 105 obtains current pressure information and sends the current pressure information to the processor 102, the processor 102 respectively sends the current image, the current distance information and the current pressure information to the control terminal 2 through the data transceiver 103, the medical staff compares the current image with an original image, the current distance information with the original distance information, the current pressure information with the original pressure information at the control terminal 2, if the color of the current image is changed or swelling or pore enlargement relative to the same part in the original image, or the change value of the current distance information relative to the original distance information exceeds 0.1-0.5 cm, or the change value of the current pressure information relative to the original pressure information exceeds a preset first threshold value, the medical staff operates the control terminal 2 to close the electric valve 3, simultaneously operates the control terminal 2 to send a heating stopping instruction to the data receiving and sending unit 103, the data receiving and sending unit 103 sends the heating stopping instruction to the processor unit 102, the processor unit 102 stops the enabling relay 107 according to the heating stopping instruction, and further operates the control terminal 2 to close the high-pressure injector.

The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a CT contrast agent extravasation monitoring interrupt device, its characterized in that, including wearing device (1), control terminal (2) and electric valve (3), wearing device (1) sets up the needle point direction of keeping somewhere the syringe needle on the arm of being monitored, wearing device includes miniature camera (101), processor unit (102), data transceiver unit (103), shell (11) and two wrist straps (12), processor unit (102) and data transceiver unit (103) set up respectively in shell (11) inner chamber, miniature camera (101) set up in shell (11) top, shell (11) both sides are connected with a wrist strap (12) respectively, miniature camera (101) are towards keeping somewhere the syringe needle, electric valve (3) set up in the inlet end of keeping somewhere the syringe needle, miniature camera (101) are connected through the input of processor unit (102) and data transceiver unit (103) and control terminal (2), the output end of the control terminal (2) is connected with the control end of the electric valve (3).

2. The CT contrast extravasation monitoring interruption device of claim 1, wherein the wearable device (1) further comprises a distance sensor (104) and two support legs (13), the support legs (13) are respectively disposed at the bottom of the housing (11), the wrist bands (12) and the support legs (13) are in one-to-one correspondence, each wrist band (12) is respectively connected with the end of the corresponding support leg (13), the distance sensor (104) is disposed at the bottom of the housing (11) and between the two support legs (13), and the output end of the distance sensor (104) is connected with the input end of the data transceiver unit (103) through the processor unit (102).

3. The CT contrast extravasation monitoring interruption device of claim 2, wherein the wearable device (1) further comprises a first pressure sensor (105) and an elastic band (14) disposed between the two wrist bands (12), both ends of the elastic band (14) are respectively connected with the ends of the two support legs (13), the first pressure sensor (105) is disposed at the bottom of the elastic band (14), and the output end of the first pressure sensor (105) is connected with the input end of the data transceiver unit (103) through the processor unit (102).

4. The CT contrast agent extravasation monitoring interruption device according to claim 3, wherein the wearable device (1) further comprises an electric heating sheet (106), a relay (107) and a power supply unit (108), the electric heating sheet (106) is arranged on the top of the elastic band (14), the relay (107) and the power supply unit (108) are respectively arranged in the inner cavity of the shell (11), the power supply end of the electric heating sheet (106) is connected with the power supply unit (108) through the relay (107), and the output end of the processor unit (102) is connected with the control end of the relay (107).

5. The CT contrast agent extravasation monitoring interruption device according to claim 1, wherein the wearable device (1) further comprises a motor (15) and a boss (16) arranged at the front end of the shell (11), the motor (15) is arranged on the boss (16), the rotating shaft of the motor (15) is connected with the micro camera (101), and the output end of the processor unit (102) is connected with the control end of the motor (15).

6. The CT contrast extravasation monitoring interruption device of claim 4, wherein a recess is provided at the top of the housing (11) and the miniature camera (101) is disposed in the recess.

7. The CT contrast media extravasation monitoring interruption device according to claim 1, wherein the other end of the wrist strap (12) far away from the shell is respectively provided with a bandage, a buckle or a magic tape.

8. The CT contrast extravasation monitoring interruption device according to claim 3, wherein the elastic band (14) is a rubber band or a silicone band.

9. The system is characterized by comprising a CT contrast agent extravasation monitoring interruption device, a remaining needle, a high-pressure connecting pipe and a high-pressure injector which are sequentially connected, wherein the CT contrast agent extravasation monitoring interruption device is the CT contrast agent extravasation monitoring interruption device according to any one of claims 1 to 8, and an electric valve (3) of the CT contrast agent extravasation monitoring interruption device is sleeved outside the high-pressure connecting pipe.

10. The CT contrast agent extravasation monitoring interruption system according to claim 9, wherein the CT contrast agent extravasation monitoring interruption device further comprises a second pressure sensor, the second pressure sensor is arranged at the output end of the high-pressure syringe, the second pressure sensor is connected with the input end of the control terminal (2), and the output end of the control terminal (2) is connected with the control end of the high-pressure syringe.