JP2003205032A - Cleaning liquid feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning liquid feeder in which a cleaning liquid injector is formed so as to have a shape to be easily held by a hand when cleaning the brain or the eye and the injecting angle of a cleaning liquid can be set within a proper range as well. <P>SOLUTION: This feeder is provided with a flexible container in which the cleaning liquid is stored, a tube 3 connected to the flexible container and the cleaning liquid injector 1 for injecting the cleaning liquid, the cleaning liquid injector 1 has a holder 1 equipped with a flow control knob 12 for holding a nozzle 14, and the nozzle 14 and the holder 11 are formed while being inclined just at α°. Then, the nozzle 14 can be detached from the holder 11, the cross section of the holder 11 is triangular, and the angle α is within the range from 0° to 45°. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning solution delivery device for cleaning a part of the human body such as the brain, eyes and nasal cavity using a cleaning solution.

[0002]

2. Description of the Related Art Artificial cerebrospinal fluid (CSF) is used as a lavage fluid during surgery during surgery for draining hematomas formed due to cerebral hemorrhage. Usually, artificial cerebrospinal fluid is put in a bucket and sucked out with a dropper to wash the affected area.

[0003]

However, since carbon dioxide CO2 is dissolved in the artificial cerebrospinal fluid, the CO2 dissolved in the artificial cerebrospinal fluid diffuses into the air when used for a long time. The pH of the artificial cerebrospinal fluid rises and exceeds the physiological pH, giving unfavorable results. Therefore, it is preferable to prevent the artificial cerebrospinal fluid from coming into contact with air, since the pH does not increase.

[0004] Therefore, a cleaning liquid delivery device having a structure in which the artificial cerebrospinal fluid is supplied from a closed flexible container containing the cleaning liquid to a cleaning liquid ejector through a tube is conceivable.
In this case, the cleaning liquid ejector is required to have a shape that is easy to hold and to have a cleaning liquid ejection angle within an appropriate range.

[0005]

A cleaning liquid feeding device of the present invention is a device for cleaning a part of a human body using a cleaning liquid, which is connected to a flexible container containing the cleaning liquid and the flexible container. And a cleaning liquid ejector for ejecting a cleaning liquid, the cleaning liquid ejector has a nozzle provided in advance, and a holder for holding the nozzle and having a flow rate adjusting knob, and the nozzle is The holder is removable from the holder, the holder has a triangular cross section, and the inclination angle α between the nozzle and the holder is in the range of 0 to 45 degrees (claim 1).

According to the above construction, since the nozzle and the holder of the cleaning liquid ejector are formed so as to be inclined by the angle α, it is easy to eject the cleaning liquid to the intended portion by hand. Also, since the nozzle is removable from the holder, it is convenient for accommodating the cleaning liquid ejector. Since the cross section of the holder is triangular, it is easy to hold by hand. The moving range before and after the flow rate adjusting knob is preferably 25 mm or more (claim 2). With this, the flow rate can be finely adjusted.The holder is provided with a tube installation base for mounting the tube, which is inclined by an angle β with respect to the linear movement direction of the knob, and the tube mounted on the tube installation base is mounted. It is preferable to have a structure in which the roller of the flow rate adjusting knob is pressed and deformed from above (claim 3). With this configuration,
By moving the roller of the flow rate control knob back and forth, the distance between the roller and the tube installation base changes. Therefore, the flow rate can be adjusted by changing the deformation amount of the tube.

It is preferable that ribs for positioning the tube at the center are formed on both side surfaces of the tube installation table (claim 4). This is to prevent unnecessary movement of the tube to the left and right. It is preferable that the tube installation table be provided with a recess for locking the flow rate adjusting knob (claim 5). As a result, the flow rate can be held while stopped.

The angle α is preferably fixed to any angle within the range of 10 degrees to 30 degrees (claim 6). Further, the nozzle may be rotatable with respect to the holder, and a structure in which the angle α is variable may be adopted (claim 7). With this structure, the holder can be held in the hand and the angle of spraying the cleaning liquid can be arbitrarily changed, so that the sprayed portion can be easily aimed.

The irrigation fluid delivery device of the present invention uses artificial cerebrospinal fluid as irrigation fluid to irrigate the brain (claim 8) or irrigates the eye with an irrigation fluid to irrigate the surgical site of the eye. It can be suitably used in some cases (claim 9).

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is an overall configuration diagram showing a cleaning solution delivery device for cleaning the ventricles.
The cleaning liquid supply device is a sealed flexible container 4 containing the cleaning liquid.
The container connecting part 5 including a hollow needle that pierces the mouth of the sealed flexible container 4, the tube 3 that communicates from the container connecting part 5 to the cleaning liquid ejector 1, and the cleaning liquid ejector 1. Reference numeral 12 is a flow rate control knob, and 14 is a nozzle for discharging the cleaning liquid.

2A and 2B are views showing one of the case where the cleaning liquid ejector 1 is divided into right and left parts. FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. (d) is a side view of the rear end. The cleaning liquid ejector 1 has a holder 11 to which a flow rate adjusting knob 12 can be attached, and a nozzle 14 for ejecting the cleaning liquid. The cross-sectional shape of the holder 11 is a triangle that is easy to hold by hand. A rectangular hole 11a for inserting the roller 12a of the flow rate adjusting knob 12 is opened on the upper surface of the holder 11.

The angle α between the holder 11 and the nozzle 14 (see FIG. 2 (b)) is set to 20 degrees,
Not limited to this, it may be in the range of 0 to 45 degrees. Ten
Preferably in the range of 30 to 30 degrees, 15 to 25 degrees
It is particularly preferable if it is within the range of degrees. The cleaning liquid inlet 13 at the rear end of the holder 11 is provided with a hole 13a into which a tube is inserted. In the middle of the holder 11, a reinforcing base 16 is formed which has holes 16a and 16b for reinforcing the strength of the cleaning liquid ejector 1 and for fixing the washing tube.

A tube mounting base 17 for mounting a tube is provided on the tip side of the reinforcing base 16. The tube mount 17 is, as shown in FIG.
A slope is provided so that it becomes higher as it approaches the front end and lower as it approaches the rear end. The inclination angle is represented by β. The range of the angle β is expressed as tangent tan β, tan β
Is preferably from 1.0 / 20 to 3.5 / 20, and from 2.5 / 20
It is more preferably 3.0 / 20.

A recess 17b for stopping the roller 12a of the flow rate adjusting knob 12 at the flow rate off position is provided at a position near the tip of the upper surface of the tube installation table 17. The flow rate can be adjusted by pressing and deforming the tube placed on the tube setting table 17 with the roller 12a of the flow rate adjusting knob 12 from above and moving the roller 12a back and forth. Further, a fixing plate 18 for fixing the upper part of the tube is provided at the tip of the tube installation table 17. The cleaning liquid outlet 19 at the tip of the holder 11 is provided with a connector 15 for connecting the nozzle 14.

FIG. 3 is a front view of the nozzle 14. The root portion 14 a of the nozzle 14 can be inserted into the hole of the connecting tool 15. Since the nozzle 14 and the connector 15 are fixed by frictional force, if the nozzle 14 is pulled out strongly,
The nozzle 14 can be removed. FIG. 4 shows the reinforcement base 1.
6 is a cross-sectional view taken along line AA of FIG. The side surface of the reinforcing base 16 is integrally connected to the holder 11. A hole 16b for fixing the tube through is shown.

FIG. 5 is a BB showing the tube installation stand 17.
FIG. The side of the tube stand 17 is also the holder 1
1 is integrally connected. A rib 17a for positioning the tube is provided near the side surface of the tube mount 17.
Are formed. FIG. 6A is a plan view of a main part showing the tube installation table 17 having the rib 17a. Rib 1
A total of six 7a are provided on the left and right sides of the tube installation table 17 in the front, rear, and rear. FIG. 6B is a sectional view taken along the line CC of the section including the rib 17a.

As shown in FIG. 6 (b), the tube installation base 1
When the tube 3 is placed on 7 and pressed and deformed by the roller 12a of the flow rate adjusting knob 12 from above, the side surface of the tube 3 comes into contact with the rib 17a, and left and right positioning is performed. As a result, the flow rate can be adjusted stably without the tube 3 moving laterally. FIG. 7A is a front view of the flow rate adjusting knob 12. Flow rate control knob 12
Is a flat contact surface 12c that contacts the upper surface of the holder 11.
And two side walls 12b are provided below the contact surface 12c, and the roller 12a is rotatably mounted.

FIG. 7B is a front view and a side view of the roller 12a. The rotation shaft 12d on the end surface of the roller 12a is
The side wall 12b is fitted in the recess. By moving the flow rate adjusting knob 12 back and forth, it is possible to bring the roller 12 a into contact with the tube 3 placed on the tube installation stand 17 and change the deformation amount of the tube 3. The forward and backward movement range of the flow rate control knob 12 is
It is set to 25 mm. This is because if it is about 25 mm, it is possible to finely adjust the flow rate. But 25mm
However, it may be more than that.

FIG. 8 is a sectional view showing a deformed state of the tube 3 when the flow rate adjusting knob 12 is placed relatively rearward. As described above, since the inclination angle β of the tube installation table 17 is provided, the tube 3 is pressed from above and below, but a small amount of liquid can pass therethrough. FIG. 9 is a view when the flow rate adjusting knob 12 is placed on the most front side,
It is sectional drawing which shows the deformation | transformation state of the tube 3. Due to the inclination of the tube installation stand 17, the tube 3 is most strongly pressed from the top and bottom, and the flow rate is off. Further, in this state, as described above, the pressed tube 3 fits into the recess 17b provided on the upper surface of the tube installation table 17. Therefore, the user who moves the flow rate adjusting knob 12 can feel with the finger that the flow rate is off.

FIG. 10 is a view showing another embodiment of the cleaning liquid ejector 1. This cleaning liquid ejector 1 includes a holder 11
A front side portion (hereinafter referred to as a "movable portion") 11b is rotatable around a hinge type support shaft 21 in a downward direction. The movable part 11b is raised to the top, and the holder 1
When the angle α formed by 1 and the nozzle 14 is 0 degree, the tube 3 is slightly bent. This allows
When the movable part 11b is rotated, the tube 3 can be prevented from being pulled excessively, and the rotation becomes smooth. Further, since the pivoting frictional force is generated by applying the fastening force to the support shaft 21, the nozzle 14 does not dangle and the nozzle 14 can be stopped at an arbitrary angle.

Although not shown in the drawing, when the movable part 11b is raised to the top and the angle α formed by the holder 11 and the nozzle 14 is set to 0 degree, the movable part 11b and the main body of the holder 11 are lightly engaged. An engaging portion may be provided so as to match.
The holder 11, the flow rate adjusting knob 12, the roller 12a
Polyolefin such as polyethylene and polypropylene is suitable as the material of, but is not limited to this. The material of the nozzle 14 is preferably thermoplastic elastomer (A), polyolefin (B), or a mixture of A and B, but is not limited to this. Connector 15
Polycarbonate is suitable for the present invention, but is not limited thereto. Soft vinyl chloride, ethylene? Thermoplastic resins such as vinyl acetate copolymer (EVA) and silicone rubber can be used.

The overall operation of the above cleaning liquid feeding device will be described. When the sealed flexible container 4 containing the cleaning liquid is installed at a high place and the container connecting portion 5 is connected, the cleaning liquid spontaneously drops and the cleaning liquid ejector 1 is filled with the cleaning liquid. During the operation, the cleaning liquid ejector 1 can be directed to the affected part and the cleaning liquid can be ejected from the tip of the cleaning liquid ejector 1 to the affected part. The flow rate of the cleaning liquid ejected from the cleaning liquid ejector 1 can be adjusted by moving the flow rate adjusting knob 12 back and forth.

Although the embodiments of the present invention have been described above, the embodiments of the present invention are not limited to the above-mentioned embodiments. For example, the irrigation fluid delivery device of the present invention can be used not only when the brain is irrigated using artificial cerebrospinal fluid as the irrigation fluid, but also during eye surgery such as cataract surgery using an eye perfusion fluid. Further, it can be used not only for surgery, but also for cleaning body parts such as the cornea, nasal cavity, and oral cavity.
Other various modifications can be made within the scope of the present invention.

[0024]

As described above, according to the cleaning liquid feeding device of the present invention, the holder of the cleaning liquid ejector is easily held and the cleaning liquid is easily ejected to the intended portion, which is convenient for accommodating the cleaning liquid ejector. Yes, it is easy to hold by hand. Therefore, handling during surgery or treatment is facilitated.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a washing liquid delivery device for washing the ventricles.

2A and 2B are views showing one of the case where the cleaning liquid ejector 1 is divided into right and left, where FIG. 2A is a plan view, FIG. 2B is a front view, FIG. 2C is a side view of the tip, and FIG. It is the side view which looked at the back end.

FIG. 3 is a front view of a nozzle 14.

FIG. 4 is a cross-sectional view taken along the line AA of the reinforcing base 16.

FIG. 5 is a cross-sectional view taken along the line BB of the tube installation table 17.

FIG. 6 (a) is a tube setting table 1 having a rib 17a.
It is a principal part top view which shows 7. (b) is a CC cross-sectional view taken along a cross section including the rib 17a.

FIG. 7A is a front view of a flow rate adjusting knob 12.
(b) is a front view and a side view of the roller 12a.

FIG. 8 is a cross-sectional view showing a deformed state of the tube 3 when the flow rate adjusting knob 12 is placed relatively rearward.

FIG. 9 is a cross-sectional view showing a deformed state of the tube 3 when the flow rate adjusting knob 12 is placed on the most front side.

FIG. 10 is a view showing another embodiment of the cleaning liquid ejector 1.

[Explanation of symbols]

1 Cleaning liquid ejector 3 tubes 4 Sealed flexible container 5 Container connection 11 holder 11b Moving part of holder 11 12 Flow rate control knob 12a roller 14 nozzles 16 Reinforcement stand 17 Tube installation stand 17b hollow 17a rib 21 spindle

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Satoshi Higashimura             Tokushima Prefecture Itano-gun Matsushige Town Maho Character Maho Development 23-49 (72) Inventor Akira Urabe             1895-5 Hikita, Hikita-cho, Okawa-gun, Kagawa Prefecture (72) Inventor Shuji Kubo             Tokushima Prefecture Tokushima City Sumiyoshi 4-chome 3-12-201 F-term (reference) 4C066 AA06 AA10 BB01 CC02 DD01                       FF02 KK16 QQ21

Claims (9)

[Claims] 1. A device for cleaning a human body part using a cleaning liquid, comprising: a flexible container containing the cleaning liquid; a tube connected to the flexible container; and a cleaning liquid ejector for ejecting the cleaning liquid. The cleaning liquid ejector has a nozzle provided in advance, and a holder provided with a flow rate adjusting knob that holds the nozzle and is movable back and forth, and the nozzle is removable from the holder, The cross section of the holder is triangular, and the inclination angle α between the nozzle and the holder is in the range of 0 to 45 degrees. 2. The range of movement before and after the flow rate control knob is
The cleaning liquid feeding device according to claim 1, which has a length of 25 mm or more. 3. The tube mounting base for mounting a tube, which is inclined by an angle β with respect to the linear movement direction of the knob, is provided in the holder, and the tube mounted on the tube mounting base is mounted on the roller of the flow rate adjusting knob. The cleaning liquid feeding device according to claim 1, wherein the cleaning liquid feeding device has a structure in which it is pressed from above and deformed. 4. The cleaning liquid feeding apparatus according to claim 1, wherein ribs for positioning the tube at a central portion are formed on both side surfaces of the tube installation table. 5. The cleaning liquid feeding apparatus according to claim 1, wherein the tube installation table is provided with a recess for locking the flow rate adjusting knob. 6. The angle α is fixed to any angle within the range of 10 degrees to 30 degrees.
The cleaning liquid supply device described in 1. 7. The cleaning liquid supply apparatus according to claim 1, wherein the nozzle is rotatable with respect to a holder, and the angle α is variable. 8. The cleaning solution delivery device according to claim 1, wherein the brain is cleaned using artificial cerebrospinal fluid as the cleaning solution. 9. The cleaning solution delivery device according to claim 1, wherein the surgical site is cleaned by using an eye perfusion solution as the cleaning solution.