JP3471927B2 - Catheter and suction device connected thereto - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a catheter and a suction device connected thereto.

[0002]

2. Description of the Related Art As a conventional catheter for a digestive system, for example, one having a shape as shown in FIGS. 6 and 7 is known (see Japanese Utility Model Publication No. 3-14195). This catheter
In the catheter 50, the insertion end of the catheter body 51 serves as a leading portion 52. The leading portion 52 is formed by arranging metal or ceramic spheres of different sizes in a line and coating them with an elastic film to form unevenness. Is formed. The catheter body 51 has balloons 53 and 54, and the catheter body 51 between the balloons 53 and 54 is provided with a plurality of drug solution discharge holes 55 and discharge solution discharge holes 56, and a drug solution flow passage 57 in the catheter body 51. And the discharge liquid flow passage 58, and further to the chemical liquid inflow port 59 and the discharge liquid discharge port 60. The balloon part 53
And 54 communicate with ports 63 and 64 through passages 61 and 62 of catheter body 51, respectively.

Then, the guide portion 52 of the catheter 50 is inserted into the gastrointestinal tract, and the catheter 50 is inserted into a desired portion by aligning the regular irregularities of the guide portion 52 with the peristalsis of the gastrointestinal tract.
Air is sent to 53, 54, and during this time, medical treatment is started, such as injecting liquid medicine and discharging body fluid. In particular, when draining body fluid, a doctor grasps the condition under fluoroscopy and uses a suction tool and a suction pump. The above device is used in response to a patient's complaint. Based on the above-mentioned equipment, various procedures such as inserting a catheter in a patient in advance and periodically operating a pump by a nurse, and intermittently operating with a suction pump with a timer are performed. is there.

[0004]

However, the conventional procedure for draining body fluid using a catheter is as follows.
Since, is performed mainly in an emergency in the presence of a doctor, there is no particular problem because it is an appropriate treatment action that suits the patient's situation. However, in the case of, since it is performed regardless of the condition of the patient, it is not possible to cope with the change in the condition that occurs during the patrol interval, and the periodic patrol is labor-intensive and troublesome. Therefore, it should be performed according to the original condition.

Also, in the above case, since it is performed regardless of the condition of the patient, it may have an adverse effect in some cases, and the discharge pump with timer is relatively expensive. Further, in any of the above cases, when the drainage pump is stopped, the capillary fluid often flows back and leaks from the end of the catheter to contaminate the patient's surroundings.

Therefore, the present invention has been made in view of the above circumstances, and has means for detecting the pathological condition of a patient, and based on the information obtained by this means, performs a specific treatment according to the pathological condition and when the pump is stopped. It is an object of the present invention to provide a catheter and a suction device connected to the catheter which prevent contamination around the patient.

[0007]

The present invention was developed in order to solve the above-mentioned problems, and includes a detection unit for detecting internal organ information in a catheter body, a discharge pump connected to the catheter, and the discharge unit. In a suction device connected to a catheter, which comprises a control unit for operating a pump, a pump connected to a flow passage for a drug solution and a discharge liquid of the catheter, and an air passage in the catheter communicating with the flow passage. Provided is a suction device connected to a catheter, which includes a switch connected to the catheter and a controller connected to the detection unit of the catheter to receive information from the detection unit and to interlock the operation of the discharge pump and the switch. In the suction device connected to the catheter, the pressure of a balloon provided with a detection unit on the catheter body is measured. Discharging the suction device to be connected to the ether Ponbu is to provide a suction device that connects to catheter detachable catheter integrally constituting the switch and control unit.

[0008]

[0009]

According to the catheter having the above-mentioned structure, the internal information of the organ is detected by the detection unit, the pathological condition of the patient can be grasped by obtaining the detected information, and the catheter can be used according to the pathological condition.

The internal organ information may be obtained by detecting the pressure of a balloon containing air or the like provided in the catheter main body by the detection unit. The internal organ information may be directly detected by a pressure sensor embedded in the catheter body.

Further, according to the in-organ information value brought by the detection information obtained as described above, the drainage pump connected to the catheter is operated to discharge the body fluid in the organ out of the body,
Stop the discharge pump to respond to the condition.

Further, according to the in-organ information value provided by the detection information obtained as described above, the discharge pump connected to the flow passage of the catheter is operated, and the discharge pump is linked to the air passage in the catheter. Open the open switch to smoothly discharge the fluid in the organs out of the body, or stop the drainage pump and close the switch to respond to the condition and prevent leakage of the fluid.

Further, a suction device integrally formed with the catheter is attached integrally, the internal information of the organ is detected by the detection unit, and the drainage pump and switch which are connected to the catheter are operated and opened by the internal information value. , The body fluid in the organ is smoothly discharged to the outside of the body, and the drainage pump is stopped and closed to deal with the condition and the body fluid is not leaked.

[0014]

Embodiments of the present invention will be described in detail below with reference to FIGS. FIG. 1 is a flow sheet diagram showing the catheter of the present invention and a suction device connected to the catheter, FIG. 2 is an enlarged flow sheet diagram of a main part of the catheter of the present invention and a suction device connected to the catheter, and FIG. 3 is a sectional view of a catheter body. Is. In the figure, a catheter 1 is detachably connected to a suction device 2, and a catheter body 3 is provided with a detection unit 5 for detecting internal organ information. In this catheter 1, polyhedrons 4 having a specific gravity of at least 1.0 are arranged in a line, and the polyhedrons 4 are covered with an elastic silicone rubber film to form random irregularities 6 on the surface of the silicone rubber film. The catheter 1 uses the leading portion 7 as the leading end portion of the catheter body 3. The catheter body 3 has a balloon 8, and the catheter body 3 located on both sides of the balloon 8 is provided with a plurality of side holes 9 for discharging a liquid medicine and discharging the liquid discharge. To the flow passage 10 of
Has contacted withdrawal port 11. There are various catheter bodies 3 as shown in FIG. 3, and the balloon 8 communicates with the three-way valve 25 through the passage 12 of the catheter body 3, one of which serves as the inflation port 13, and the air port 14 of the catheter body 3. It passes through the air passage 15 and is joined to the flow passage 10 located in the catheter body 3 on the side of the leading portion 7 of the balloon 8. The air port 14 is connected to a switch 27 in the suction device 2 which will be described in detail later, and is connected to the side hole 9 of the catheter body 3.
When the body fluid or the like is discharged from the body through the flow passage 10, the switch 27 is opened to allow air to enter the organ from the outside in order to prevent the body 3 from being unable to be discharged due to the catheter body 3 adhering to the organ wall. It is for.

The suction device 2 is connected to the discharge pump 20 connected to the extraction port 11 of the catheter 1, the switch 27 connected to the air port 14, and the detection unit 5 of the catheter 1 to receive information from this and discharge it. The pump 20 and the control unit 21 for controlling the operation of the switch 27 are integrated, and the discharge pump 20, the switch 27, and the control unit 21 are integrally configured to be detachable from the catheter 1.

The suction port 22 of the discharge pump 20 is connected to the extraction port 11 of the flow passage 10 of the catheter 1 so as to be detachable with one touch, and the discharge port 23 is a container (not shown) for containing body fluid or the like. Connected). This discharge pump 20
Although it is not particularly limited, since it discharges body fluid and the like in the organ, an aspirator having a suction performance, a vacuum pump, a self-priming pump and the like are used. When the vacuum pump is used as the discharge pump, it is necessary to provide a gas-liquid separation tank between it and the extraction port 11.

The control unit 21 includes a pressure sensor 24 and a switch 27.
And electrically connected to the discharge pump 20. Pressure sensor
24 is arranged in the suction device 2 in this embodiment.
That is, the detection unit 5 uses the balloon 8 itself as a detection end to detect the pressure of the balloon 8, and the balloon 8 is connected to the three-way valve 25 via the passage 12 in the catheter body 3. Further, the pressure of the balloon 8 is sequentially detected by the pressure sensor 24 being detachably connected. The inflation port 13 of the three-way valve 25 is connected to a device 26 for inflating the balloon 8, and by switching the three-way valve 25, the balloon 8 can be inflated and the pressure of the balloon 8 can be detected. Further, the above-mentioned device 26 may be built in the suction device 2 or may be a separate body.

The discharge pump 20, the control unit 21, the pressure sensor 24, and the switch 27, which are described above, form an integral suction device 2 mounted on a common mount (not shown), and the extraction port 11 of the catheter 1 is used. The joint between the exhaust pump 20 and the exhaust port 20, the joint between the air port 14 and the switch 27, and the joint between the three-way valve 25 and the pressure sensor 24 are joints that can be attached and detached with one touch. Since such a joint is well known, detailed description thereof will be omitted.

Next, a method of using the catheter 1 and the suction device 2 connected to the catheter 1 having the above structure will be described. First, a catheter 1 suitable for the purpose of treatment of a patient is selected, the catheter 1 is taken out from a packaging bag or the like and prepared, and the tip of the leading portion 7 of the catheter 1 is inserted into an organ to be inserted, for example, a digestive organ. Then, the tip is applied to the peristalsis of the digestive organ and is drawn in, and the irregularities 6 of the polyhedron 4 having a large shape of the leading portion 7 are peristaltic and are fitted into the digestive organ and become caught in the digestive organ and the irregularity 6. Is improved and the catheter 1 as a whole is pulled, and the posture of the patient is changed to change the direction and reach the intended place in the digestive system. Next, the three-way valve 25 of the catheter 1 is operated to operate the passage 12
The device 26 and the device 26 are communicated with each other to inflate the fluid to the balloon 8, and the three-way valve 25 is operated to communicate the passage 12 and the pressure sensor 24. Then, the catheter 1 is joined to the suction device 2 having an integral structure by using a one-touch joint. Then, the pressure in the digestive system is sequentially detected by the pressure sensor 24 via the balloon 8, the passage 12, and the three-way valve 25, and the pressure information is sent to the control unit 21, and the control unit 21 sets the preset working pressure. When it reaches, the drain pump 20 is activated to operate the drainage pump 20, and the body fluid in the digestive system is discharged through the side hole 9, the flow passage 10 and the discharge port 11 to the drainage pump 20.
On the other hand, the control unit 21 also outputs an operation signal to the switch 27, opens the switch 27 in synchronization with the discharge pump 20, and introduces air from the outside to attach the catheter body 3 to the digestive wall. Prevent from doing. When the pressure information reaches the stop pressure preset by the control unit 21, the control unit 21 outputs a stop signal to the discharge pump 20 and the switch 27 to stop the discharge pump 20 and close the switch 27 to close the body fluid. Does not go out of the air port 14 due to the capillary phenomenon. After that, by repeating the same procedure, the body fluid in the digestive system is discharged to the outside of the body according to the patient's condition. When the purpose of treatment using the catheter 1 is achieved, the catheter 1 is taken out from the digestive organ and is removed from the suction device 2 with one touch, and the used catheter 1 is discarded.

4 and 5 show a catheter of the present invention and a suction device connected to the catheter. The difference between the catheter 1a and the suction device 2a and the embodiment shown in FIGS.
The detection unit 5a is provided with the pressure sensor 24a itself on the catheter body 3 of the catheter 1a, and therefore, the information transmission passage 30 for connecting the pressure sensor 24a and the control unit 21.
Is provided in the catheter body 3, and further, there is no three-way valve 25, and the device 26 and the inflation port 13 communicating with the balloon 8 are directly connected. It should be noted that the pressure sensor 24a may be provided in the catheter main body 3 located on the leading portion 7 side of the balloon 8 without any problem. Other configurations and operations are similar to those of the embodiment shown in FIGS. 1 to 3, and therefore, reference numerals are attached to the drawings and the description thereof is omitted.

[0021]

As described in detail above, according to the catheter of the present invention, the internal information of the organ is detected by the detection unit, and the pathological condition of the patient is grasped by obtaining the detected information, and the catheter is selected according to the pathological condition. You can use it. Therefore, it becomes possible to always carry out the treatment using the catheter as a specific treatment according to the pathological condition of the patient.

As for the internal organ information, the pressure of a balloon containing a fluid provided in the catheter body may be detected by the detection unit. The internal organ information may be directly detected by the pressure sensor embedded in the catheter body, and by doing so, the internal organ information can be obtained more accurately.

By connecting a suction device to the catheter, the drainage pump connected to the catheter is operated according to the information value in the organ given by the detection information obtained above, and the body fluid in the organ is activated. Depending on the condition, such as taking out the body or stopping the discharge pump. Therefore, the treatment using a catheter can always be a specific treatment according to the patient's condition, which saves the labor and time required for regular patrols and does not have the adverse effect. And can be performed efficiently.

Further, according to the in-organ information value provided by the detection information obtained above, the discharge pump connected to the flow passage of the catheter is operated, and the discharge pump is connected to the air passage inside the catheter. Open the open switch to smoothly discharge the fluid in the organs out of the body, or stop the drainage pump and close the switch to respond to the condition and prevent leakage of the fluid. Therefore, in addition to the effect of the suction device, since body fluid does not leak from the catheter,
It is hygienic without polluting the patient's surroundings.

Furthermore, by integrally forming the suction device,
It becomes easier to attach / detach to / from the catheter with one touch, and the suction device can be integrated, making it compact.
The effect of the suction device becomes even more remarkable.

[Brief description of drawings]

FIG. 1 is a flow sheet diagram showing a catheter of the present invention and a suction device connected to the catheter.

FIG. 2 is an enlarged flow sheet diagram showing main parts of the catheter of the present invention and a suction device connected to the catheter.

FIG. 3 is a sectional view of a catheter body.

FIG. 4 is a flow sheet diagram similar to FIG. 2 showing another embodiment of the present invention.

FIG. 5 is a sectional view similar to FIG. 3, showing another embodiment of the present invention.

FIG. 6 is a plan view showing a conventional catheter.

FIG. 7 is a cross-sectional view of a conventional catheter body.

[Explanation of symbols]

1, 1a, 50 Catheter 2, 2a Suction device 3, 51 Catheter body 5, 5a Detection part 8, 53, 54 Balloon 10 Flow passage 14 Air passage 20 Discharge pump 21 Control part 24, 24a Pressure sensor 27 Switch 30 Information transmission aisle

─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-60-220074 (JP, A) JP-A-62-197029 (JP, A) JP-A-5-177001 (JP, A) JP-A-5- 161711 (JP, A) Actual Kohei 3-14195 (JP, Y2) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61B 5/00 A61M 1/00

Claims (3)

(57) [Claims] 1. A suction device connected to a catheter, which comprises a detection unit for detecting internal organ information, a discharge pump connected to the catheter, and a control unit for operating the discharge pump in the catheter body, wherein the catheter has A pump connected to the flow path for the liquid medicine and the discharged liquid, a switch connected to the air path in the catheter communicating with the flow path, and a detector connected to the catheter to receive information from this A suction device connected to a catheter, comprising a control unit that controls the operations of the discharge pump and the switch in conjunction with each other. 2. The catheter according to claim 1, wherein in the suction device connected to the catheter according to the preceding paragraph, the pressure of a balloon provided with a detection unit in the catheter body is measured. 3. The suction device to be connected to the catheter according to claim 1, wherein the discharge pump, the switch and the control unit are integrally configured to be detachable from the catheter.
A suction device connected to the described catheter.