CN104042392A - Temperature-controlled catheter with temperature sensor - Google Patents

Abstract

The invention relates to the field of medical instruments, in particular to a temperature control catheter with a temperature sensor. The temperature control catheter with the temperature sensor comprises a water inlet cavity channel, a water return cavity channel and a balloon, wherein the water inlet cavity channel comprises a far-end water inlet, the water return cavity channel comprises a far-end water return port, the balloon is located at the far end of the catheter, openings of the far-end water inlet and the far-end water return port are located in the balloon, the water inlet cavity channel further comprises a near-end water injection port, the water return cavity channel further comprises a near-end water outlet, and a temperature sensor is arranged at the front end of the catheter. The invention utilizes the saccule to continuously exchange heat with blood in the inferior vena cava of a patient to achieve the aim of controlling the temperature of a human body; the temperature sensor can detect the blood temperature of a patient in real time, so that the temperature of the heat exchange fluid injected into the saccule can be adjusted in time; when the temperature control catheter is provided with a plurality of balloons, the contact surface of heat exchange can be further increased, and the rapid change of the temperature in the body is facilitated.

Description

Temperature-controlled catheter with temperature sensor

technical field

The invention relates to the field of medical equipment, in particular to a temperature-controlled catheter with a temperature sensor.

Background technique

At present, the method of cooling or heating the human body in my country basically adopts the method of body surface temperature regulation, such as using ice packs or ice blankets to cool down. Body surface cooling can achieve the purpose of cooling to a certain extent, but the existing body surface cooling temperature is not easy to control. The operation process is cumbersome, the induction process is long, and it is easy to excessively cool down or heat up. Excessive cooling not only fails to achieve the therapeutic effect, but also easily leads to corresponding complications of patients, and even increases the risk of death.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a temperature-controlled catheter with a temperature sensor. , using the heat exchange between the balloon and the vein, as an application for cooling or warming up the human body.

To achieve the above object, the present invention provides the following technical solutions:

A temperature-controlled catheter with a temperature sensor, including a water inlet channel, a water return channel, and a balloon, wherein the water inlet channel includes a distal water inlet, and the return water channel includes a distal water return port, and the balloon is located at the distal end of the catheter. The openings of the distal water inlet and the distal return water inlet are located in the balloon, the water inlet channel also includes a proximal water injection port, the water return channel also includes a proximal water outlet, and the front end of the catheter is provided with a temperature sensor.

In the above-mentioned temperature-controlled catheter with a temperature sensor, the temperature sensor provided at the front end of the catheter is used to sense the temperature of blood in the vein.

In the above-mentioned temperature control catheter with a temperature sensor, the remote water inlet is larger than the remote water return port.

In the above-mentioned temperature control catheter with a temperature sensor, the temperature control catheter includes two balloons, and the two balloons are arranged at intervals in sequence, and each balloon communicates with the water inlet channel and the water return channel.

In the above-mentioned temperature control catheter with a temperature sensor, the near-end water injection port and water outlet of the catheter device are respectively connected to the water outlet and the water inlet of the thermal adjustment device; the temperature sensor is connected to the thermal adjustment device, and through the thermal adjustment The display on the device can display the patient's blood temperature in real time.

Compared with the prior art, the present invention has beneficial effects: the present invention uses the balloon to continuously exchange heat with the blood in the patient's inferior vena cava to achieve the purpose of controlling the temperature of the human body. When cooling the human body, the fluid does not participate in the contact with the human body , does not participate in human metabolism, and under certain circumstances, it can avoid the fluid participating in human metabolism to cause damage to the patient's heart, lung, and kidney function, greatly reducing the risk of corresponding complications and death of the patient; the temperature sensor can detect the patient in real time The temperature of the blood can be adjusted in time to adjust the temperature of the heat exchange fluid injected into the balloon; when the temperature control catheter is equipped with multiple balloons, the heat exchange contact surface can be further increased, which helps to quickly change the temperature in the body.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the present invention after it is connected with a heat regulating device.

FIG. 3 is a schematic structural view of Embodiment 2.

Marks in the figure: 1-water inlet channel, 2-return water channel, 3-balloon, 4-temperature sensor, 5-heat adjustment device, 501-monitor, 6-catheter, 7-saline bag, 8-peristalsis Pump, 9-temperature control catheter with temperature sensor, 10-vein, D11-distal water inlet, D12-distal water return, D13-proximal water injection, D14-proximal water outlet, D15-thermal adjustment device The water outlet of D16-the water inlet of the heat regulating device.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Example 1

As shown in accompanying drawings 1 and 2, the temperature-controlled catheter with a temperature sensor in this embodiment includes a water inlet channel 1, a water return channel 2 and a balloon 3, wherein the water inlet channel 1 includes a distal water inlet D11 The water return channel 2 includes a distal return port D12, the balloon 3 is located at the distal end of the catheter, the openings of the distal water inlet D11 and the distal return port D12 are located in the balloon 3, and the water inlet channel 1 also includes a proximal The end water injection port D13, the water return channel 2 also includes a proximal water outlet D14, and the front end of the catheter is provided with a temperature sensor 4. The proximal water injection port D13 and the water outlet D14 are respectively connected with the water outlet D15 and the water inlet D16 of the heat regulating device; the temperature sensor 4 is connected with the heat regulating device 5, and by the display 501 on the heat regulating device 5, it can Real-time display of the patient's blood temperature.

This embodiment includes a circulation fluid channel that can lead the heat exchange fluid into the balloon 3 and return to the heat regulating device 5. The circulation fluid channel includes a water inlet channel 1 and a water return channel 2. Medium circulation flow, the fluid exchanges heat with the blood in the vein 10 miles across the balloon wall. When cooling the human body, the fluid does not participate in human body contact and does not participate in human metabolism. The heart, lung, and kidney functions are damaged, and at the same time, it can have the therapeutic effect of cooling the human body; the temperature sensor 4 can detect the patient's blood temperature in real time, so that it is convenient to adjust the temperature of the heat exchange fluid injected into the balloon 3 in time. the

As shown in Figure 2, the conduit 6 connects the temperature control conduit 9 with the temperature sensor, the saline bag 7, the peristaltic pump 8 and the heat regulating device 5 in order to form a closed loop structure, and adds heat exchange fluid ( normal saline), the temperature-controlled catheter 9 with a temperature sensor is inserted into the left femoral vein 10 next to the groin of the patient, the thermal adjustment device 5 can adjust the temperature of the saline according to the control requirements, and the saline circulates along the catheter under the action of the peristaltic pump 8 , using the temperature control catheter 9 with a temperature sensor to continuously exchange heat with the blood in the patient's inferior vena cava, so as to achieve the purpose of controlling the temperature of the human body.

Example 2

As shown in Figure 3, the structure of this embodiment is the same as that of Embodiment 1, the difference is that the temperature control catheter of this embodiment contains two balloons 3, and the two balloons are arranged at intervals in sequence, and each balloon 3 is connected to The water inlet channel 1 communicates with the return water channel 2. The two balloons 3 further increase the contact surface for heat exchange, which helps to quickly change the temperature in the body.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (3)

1. with the temperature control conduit of temperature sensor, it is characterized in that: include water cavity road, backwater tract and sacculus, wherein enter water cavity road and comprise far-end water inlet, backwater tract comprises far-end water return outlet, sacculus is positioned at the far-end of conduit, and the opening of described far-end water inlet and far-end water return outlet is arranged in sacculus, enters water cavity road and also comprises near-end water filling port, backwater tract also comprises near-end outlet, and described catheter proximal end is provided with temperature inductor.

2. the temperature control conduit with temperature sensor according to claim 1, is characterized in that: described far-end water inlet is greater than far-end water return outlet.

3. the temperature control conduit with temperature sensor according to claim 1, is characterized in that: described temperature control conduit comprises two sacculus, and described two sacculus successively interval arrange, each sacculus with enter water cavity road and backwater tract is communicated with.