WO2018158889A1 - Wound area washing device - Google Patents

Abstract

The present invention is configured so that a washing liquid discharge flow channel and a nozzle-side suction flow channel are provided next to each other in a nozzle body removably assembled with a main body, and the washing liquid blown onto a wound area is suctioned by the nozzle-side suction flow channel. A starting end of a suction flow channel communicated with a terminal end of the nozzle-side suction flow channel during the assembly is provided to the main body. A filter part is formed in the starting end of the suction flow channel in order to prevent entry of bone fragments or the like of a size that could lead to clogging of the suction flow channel.

Description

Wound cleaning equipment

The present invention relates to an improvement of a cleaning apparatus used for cleaning a wound part in a human operation or the like.

As a pulse cleaning device used for cleaning a wound part in human body surgery or the like, there is one disclosed in Patent Document 1.

In this Patent Document 1, physiological saline as a cleaning liquid is ejected by driving a built-in motor, and the cleaned sewage is sucked through a suction nozzle connected to a suction unit. Yes.

However, the sewage is mixed with not only bodily fluids but also fragments of human tissues such as bone fragments. Such bone fragments and the like cause clogging of the suction flow path connecting the suction unit and the suction nozzle. For this reason, this type of cleaning apparatus is required to be able to suck the cleaning liquid after cleaning the wound while preventing as much as possible a bone fragment or the like from entering the suction channel.

Moreover, in the thing of patent document 1, the rear end side of a main body case is bent, and it is a grip part, and the output adjustment lever located in the bending inner side of a main body case is operated with an index finger in the state which grasped this grip part. The cleaning liquid is sprayed. However, depending on the situation of the operation, there is a case where the cleaning liquid is sprayed to the wound part so as to grip the central part between the front end and the rear end of the main body case instead of the grip part. However, when a part other than the grip portion is gripped, it is difficult to operate the output adjustment lever.

In addition, the main body constituting this type of cleaning device needs to be connected to the three parts of the cleaning liquid supply flow path, the suction flow path, and the power cable for the motor, so that the main body can be smoothly routed. From the point of view, it is hoped that these three parties will be properly combined.

Japanese Patent No. 5649382

The main problem to be solved by the present invention is to rationally improve the usability of this type of cleaning apparatus.

In order to achieve the above object, the present invention provides a wound cleaning apparatus,
The body,
A nozzle body that is detachably combined with the main body,
The nozzle body is provided with a cleaning liquid discharge flow path and a nozzle side suction flow path so that the cleaning liquid sprayed on the wound portion is sucked from the nozzle side suction flow path,
The main body is provided with a starting end of a suction channel that communicates with a terminal end of the nozzle side suction channel at the time of the combination,
A filter portion for preventing entry of bone fragments or the like having a size that may cause clogging of the suction flow path is formed at the start end of the suction flow path.

One aspect of the present invention is to form a storage portion such as a bone fragment at the end of the nozzle side suction flow path.

In addition, on the side of the central axis of the first flow path where the storage section is the start end of the nozzle side suction flow path, the start end communicates with the end of the first flow path and the end is connected to the nozzle side suction flow path. One of the aspects of the present invention is to form the second flow path as the end of the first flow path.
The main body has a substantially straight body having a tip part as an attachment part of the nozzle body, and a grip part protruding laterally from a rear end of the body, and the body One of the aspects of the present invention is to provide a switch of a motor drive circuit that constitutes the discharge mechanism of the cleaning water on the side of the part opposite to the protruding side of the grip part.

In addition, the wound cleaning device is a tube that serves as the suction flow path,
A tube serving as a supply flow path for the cleaning liquid;
A tube having a C-shaped cross section that can hold the power cable constituting the drive circuit of the motor that constitutes the discharge mechanism of the washing water by pushing it into the inside from the open portion;
One of the aspects of the present invention is to include an assembled tube body as an extrusion-molded product that is provided between adjacent tubes and includes a thin portion that integrates adjacent tubes.

According to this invention, firstly, the cleaning liquid after the wound cleaning is performed in a state in which a bone fragment having a size that may cause clogging does not enter the suction channel constituting the wound cleaning apparatus as much as possible. Suction can be done, and bone fragments etc. stored in the nozzle body can be removed from the nozzle body by removing the nozzle body from the main body, and secondly, even if the gripping part is gripped even if the straight part of the main body is gripped Thirdly, the two types of tubes connected to the main body and the power cable can be combined without being glued or bundled with adhesive tape, and the wound cleaning device is convenient to use. To be improved.

FIG. 1 is a side view showing the overall configuration of a wound cleaning apparatus according to an embodiment of the present invention. FIG. 2 is a plan view of the wound cleaning apparatus. FIG. 3 is a partial cross-sectional configuration diagram of the wound cleaning apparatus. FIG. 4 is an enlarged cross-sectional view showing the main part of FIG. FIG. 5 is a side configuration diagram of the attachment portion of the main body of the wound cleaning apparatus. FIG. 6 is a configuration diagram showing the attachment part of the main body of the wound cleaning apparatus as viewed from the left side of FIG. 5, showing the base part of the nozzle body in cross section at the same time, and the state where the base part of the nozzle body is locked by a spring. Show. FIG. 7 is a configuration diagram showing the attachment part of the main body of the wound cleaning apparatus as viewed from the left side of FIG. 5, showing the base part of the nozzle body in cross section at the same time, and releasing the lock of the base part of the nozzle body by the spring Indicates the state. FIG. 8 is a front view of a part integrally including a cleaning liquid connector, a cylinder, and a suction connector in a main body constituting the wound cleaning apparatus. FIG. 9 is a cross-sectional view taken along the line AA in FIG. 10 is a cross-sectional view taken along the line BB in FIG. FIG. 11 is a perspective view of a base component part of a nozzle body constituting the wound cleaning apparatus. FIG. 12 is a perspective view of a spring constituting the wound cleaning apparatus. FIG. 13 is a side view of the assembled tube body constituting the wound cleaning apparatus. FIG. 14 is a plan view of the assembled tube body constituting the wound cleaning apparatus. FIG. 15 is a side view showing a state where the grip part of the wound cleaning apparatus is gripped. FIG. 16 is a side view showing a state where the body part of the wound cleaning apparatus is grasped. FIG. 17 is a circuit diagram of a motor drive circuit constituting the wound cleaning apparatus.

Hereinafter, typical embodiments of the present invention will be described with reference to FIGS. The wound cleaning apparatus according to this embodiment is suitably used for cleaning a wound in human surgery or the like.

The wound cleaning apparatus includes a main body 1 and a nozzle body 2 that is detachably combined with the main body 1 (see FIG. 1).

In the illustrated example, the nozzle body 2 includes a nozzle cover 23 that forms the tip of the nozzle body 2 that is directed to the wound part, a base component 24 that forms the base 22 of the nozzle body 2 opposite to the nozzle cover 23, and a gap therebetween. The structure is a combination of the intermediate portion 25 positioned (see FIG. 4).

The main body 1 includes a cleaning liquid discharge mechanism and a part of the cleaning liquid suction flow path 3. As the cleaning solution, physiological saline is typically used. The suction channel 3 forms part of the suction channel 3 of a known suction device.

The nozzle body 2 is formed with a discharge flow path 20 connected to the discharge mechanism and a nozzle side suction flow path 21 communicating with the suction flow path 3 when combined with the main body 1.

In a state where the nozzle body 2 is combined with the main body 1, the cleaning liquid supplied from the outside of the main body 1 is sent to the discharge flow path 20 of the nozzle body 2 by the discharge mechanism and sprayed from the nozzle body 2 to the wound portion. It has become. At the same time, the sprayed cleaning liquid is sucked through the nozzle side suction channel 21 and the suction channel 3 and further sent out of the main body 1.

In this embodiment, the main body 1 has a substantially straight barrel portion 7 whose tip portion is the attachment portion 7 a of the nozzle body 2, and a grip protruding sideways from the rear end of the barrel portion 7. And a switch 4a of the drive circuit 4 of the motor 4c that constitutes the discharge mechanism of the cleaning water on the side 7b opposite to the protruding side of the grip 8 in the body 7. It has become. The grip portion 8 protrudes from the rear end of the grip portion 8 in a direction crossing the central axis of the body portion 7.

In the example shown in the drawing, the mounting portion 7a has a structure in which the base portion 22 of the nozzle body 2, that is, the side opposite to the tip side directed to the wound portion in the nozzle body 2 is received from the front and is fitted to this. ing.

In FIG. 3, reference numeral 9 denotes a hood that covers the attachment portion 7 a, reference numeral 10 denotes a locking spring, reference numeral 11 denotes a cleaning liquid connector that protrudes forward from the inner back portion of the attachment portion 7 a, and reference numeral 12 denotes an inner rear portion of the attachment portion 7 a. This is a suction connector that projects the front end portion 12b forward.

The cleaning liquid connector 11 is located inside the hood 9, and the suction connector 12 is located outside the hood 9. In the illustrated example, the cleaning liquid connector 11, a cylinder 16, which will be described later, and the suction connector 12 are integrated parts (see FIGS. 8 to 10).

The spring 10 is made of a metal wire, has a left and right leg 10a, 10a, and a connecting part 10b extending between the base ends of the left and right leg 10a, 10a, and is a groove formed outside the hood 9. 9a is attached to the outside of the hood 9 (see FIGS. 5 to 7). Intermediate portions of the left and right leg portions 10 a and 10 a of the spring 10 enter the inside of the hood 9 through a split groove 9 b formed in the hood 9. In the illustrated example, when the base portion 22 of the nozzle body 2 is fully inserted into the hood 9 from the front, the intermediate portion of the leg portion 10a of the spring 10 is caught by the step 22a formed on the outside of the base portion 22. The state where the base portion 22 of the nozzle body 2 is fully inserted, that is, the state where the nozzle body 2 is combined with the main body 1 is maintained (FIG. 6). In this combined state, the cleaning liquid connector 11 of the main body 1 is connected to the discharge flow path 20 of the nozzle body 2, and the suction connector 12 is connected to the nozzle side suction flow path 21 of the nozzle body 2 ( FIG. 3).

The combined state of the main body 1 and the nozzle body can be released by pressing the connecting portion 10b of the spring 10. When the connecting portion 10 b of the spring 10 is pressed from the combined state, the tip of the leg portion 10 a of the spring 10 hits the cam portion 9 c formed on the outside of the hood 9, and the spring 10 moves the intermediate portion of the leg portion 10 a to the outside of the hood 9. It is elastically deformed in the direction in which it is moved (FIG. 7). As a result, the hooking of the spring 10 and the nozzle body 2 can be released, and the base 22 of the nozzle body 2 can be extracted from the inside of the hood 9, that is, the mounting portion 7 a, thereby separating the main body 1 and the nozzle body 2. ing. In the illustrated example, a cover 13 of a spring 10 is further attached to the outside of the hood 9 (see FIGS. 1 to 3), and the pressing operation of the spring 10 is performed via this cover 13. Yes.

When the nozzle body 2 is combined with the main body 1 again, the leg portion 10a of the spring 10 is placed on the cam surface 22b (see FIG. 11) formed outside the base portion 22 of the nozzle body 2 and behind the step 22a. The spring 10 is elastically deformed by hitting the intermediate part, and the base part 22 of the nozzle body 2 is smoothly fitted into the hood 9 toward the insertion end position where the intermediate part is caught by the step 22a. It is like that.

3, reference numeral 4c is a motor, reference numeral 14 is a piston, reference numeral 15 is a gear for converting the rotational force of the motor 4c into a moving force of the piston 14, and reference numeral 16 is a cylinder. These are incorporated in the body portion 7 of the main body 1 and between the attachment portion 7 a and the grip portion 8. When the motor 4c is driven, the gear 15 rotates and the piston 14 moves back and forth. One-way valves 17 and 18 are respectively provided on the side and front end of the cylinder 16 (FIGS. 3, 4, 9, and 10). In the illustrated example, the one-way valve 18 at the front end is closed when the piston is retracted, and the one-way valve 17 at the side is opened, and the cleaning liquid is sucked into the cylinder 16, and the one-way valve 18 at the front end is opened at the side when the piston is advanced. The one-way valve 17 is closed and the cleaning liquid is sent out from the cylinder 16 (not shown, but the cleaning liquid supply flow path 5 is connected to the cylinder 16 at the position where the one-way valve 17 is installed. The cleaning liquid sent out in this way is sent to the discharge flow path 20 of the nozzle body 2 through the cleaning liquid connector 11.

The switch 4a of the drive circuit 4 of the motor 4c is pushed in both the first position in which the front end side is pushed in and the second position in which the rear end side is pushed in, centering on the central axis indicated by 4b in FIG. The position is selectively positioned at any one of the three positions with no neutral position (the neutral position in FIG. 3). FIG. 17 shows an example of the drive circuit 4. In FIG. 17, reference numeral 4d is a first power source (battery) constituting the drive circuit 4, reference numeral 4e is a second power source (battery), reference numeral 4a is a switch, and reference numeral 4c is a motor. In the first position, the circuit including the first power supply 4d is closed, while in the second position, the circuit in which the first power supply 4d and the second power supply 4e are connected in series is closed. As a result, when the voltage applied to the motor 4c is changed to be in the second position, the discharge amount of the cleaning liquid per unit time is increased.

Since the switch 4a is provided on the side portion of the body portion 7 opposite to the protruding side of the grip portion 8, first, when the body 1 is gripped so as to grip the grip portion 8, As shown in FIG. 15, the switch 4a can be operated with the thumb. Second, when the main body 1 is grasped by grasping the body 7 without using the grip 8, the switch 4a can be operated with a finger other than the thumb as shown in FIG. Further, when the nozzle body 2 is removed from the main body 1 as described above, or when the nozzle body 2 once removed is combined with the main body 1 again, the operation can be performed without touching the switch 4a with a finger. .

Further, in this embodiment, the wound cleaning apparatus includes a tube 6a that becomes the suction flow path 3, and
A tube 6b serving as a supply channel 5 for the cleaning liquid;
A tube 6c having a C-shaped cross section that allows the power cable 4f constituting the drive circuit 4 of the motor 4c constituting the washing water discharge mechanism to be pushed into the inside from the open portion and held therein;
An assembled tube body 6 is provided as an extruded product, and includes a thin portion 6d between adjacent tubes and integrating adjacent tubes (see FIGS. 13 and 14).

In the illustrated example, the power cable 4f connects the first power source 4d and the second power source 4e to the motor 4c (see FIG. 17).

The tube 6c having a C-shaped cross section is integrated with a tube 6b serving as the supply flow path 5 in the illustrated example. Specifically, a thin-walled portion 6d is formed between the back portion opposite to the opening side of the tube 6c having a C-shaped cross section and the outer surface portion of the tube 6b serving as the supply flow path 5 (see FIG. 13, see FIG. As a result, the tube 6c having the C-shaped cross section is provided at a place where it is convenient to collectively handle the tube 6a serving as the suction flow path 3, the tube 6b serving as the supply flow path 5, and the power cable 4f. By holding the power cable 4f, it can be integrated. In addition, if the three tubes 6a, 6b, 6c are made of members that can break the thin-walled portion 6d, they can be easily separated within a necessary range by breaking as necessary. Alternatively, in a place where it is convenient to separately handle the two of the three and the remaining one (for example, a connection place between the assembled tube body 6 and the main body 1), the integration is canceled. It can also be used.

On the other hand, the nozzle body 2 is provided with a cleaning liquid discharge flow path 20 and a nozzle side suction flow path 21 so that the cleaning liquid sprayed on the wound is sucked from the nozzle side suction flow path 21. (See FIG. 3).

In the illustrated example, the nozzle body 2 includes a first pipe portion 26 that constitutes the discharge flow path 20 for the cleaning liquid and a second pipe portion 27 that constitutes the nozzle-side suction flow path 21. The second tube portion 27 is located on the side of the tube 26, and the center axis of the first tube portion 26 and the center axis of the second tube portion 27 are substantially parallel to each other. It is composed of that. Reference numeral 23 in the figure denotes a soft plastic nozzle cover attached to the tip of the nozzle body 2, that is, the side directed to the wound portion. In the nozzle cover 23, the nozzle side The starting end 21a (primary side) of the suction channel 21 is positioned. On the base 22 side of the nozzle body 2, the step 22a and the cam surface 22b are formed outside the first pipe portion 26 (see FIG. 11).

Further, the main body 1 is provided with a start end 3a of the suction channel 3 communicating with the terminal end 21b (secondary side) of the nozzle side suction channel 21 at the time of the combination. In the illustrated example, the suction connector 12 functions as the start end 3 a of the suction flow path 3. Specifically, in the illustrated example, at the time of the combination, the suction connector 12 enters the nozzle side suction channel 21 from the rear, and thereby the suction channel 3 is inserted into the terminal end 21 b of the nozzle side suction channel 21. The starting end 3a is communicated. The suction connector 12 has a cylindrical shape, and a tube 6a serving as the suction flow path 3 in the main body 1 is connected to a rear end portion 12a positioned in the main body 1 (see FIG. 3).

In this embodiment, as shown in FIG. 4, the start end 3 a of the suction flow path 3, in the illustrated example, the front end portion 12 b positioned outside the main body 1 of the suction connector 12. In addition, a filter portion 19 is formed to prevent entry of bone fragments or the like having a size that may cause clogging of the suction flow path 3. In the illustrated example, the front end portion 12b of the suction connector 12 has a circular cross section and is divided into four parts by two partitions 19a and 19a that intersect at right angles at the center of the circle (see FIG. 8). This prevents a situation where a bone fragment or the like of the size enters the suction flow path 3. That is, in this embodiment, the filter section 19 is constituted by the two partition members 19a and 19a.

The filter unit 19 may be of any structure that prevents the entry of bone fragments or the like having a size that may cause clogging of the suction flow path 3, for example, the start end of the suction flow path 3. Any structure may be used as long as it has a function of preventing entry of such bone fragments, such as a mesh that closes the wall.

In the wound cleaning apparatus according to this embodiment, a bone fragment or the like contained in the cleaning liquid to be sucked does not enter the suction flow path 3 and remains in the nozzle side suction flow path 21 of the nozzle body 2. Can be made. Thereby, it is possible to prevent the clogging caused by the bone fragments or the like as much as possible from occurring in the suction flow path 3, more specifically, the tube that becomes the suction flow path 3. Bone fragments or the like remaining in the nozzle side suction channel 21 can be removed from the nozzle body 2 by removing the nozzle body 2 from the main body 1.

In this embodiment, a reservoir 28 such as a bone fragment is formed at the end 21b of the nozzle side suction channel 21 (see FIGS. 3 and 4).

Specifically, in this embodiment, the storage portion 28 is located on the side of the central axis of the linear first flow path 29 having the start end 29a as the start end 21a of the nozzle side suction flow path 21. A first end 30a is communicated with the end 29b of the first channel 29, and the end 30b is formed by a linear second channel 30 having the end 21b of the nozzle side suction channel 21 (see FIG. 4). In the illustrated example, the suction connector 12 enters from the rear to the middle position in the length direction of the second flow path 30, and the front end portion 12 b of the suction connector 12 and the second flow path A space between 30 and the start end 30a functions as the storage section 28 (see FIG. 4).

In addition, as a matter of course, the present invention is not limited to the embodiment described above, but includes all embodiments that can achieve the object of the present invention.

DESCRIPTION OF SYMBOLS 1 Main body 2 Nozzle body 20 Discharge flow path 21 Nozzle side suction flow path 3 Suction flow path 3a Starting end 19 Filter part In addition, the specification of Japanese Patent Application No. 2016-035110 for which it applied on February 26, 2016, a claim The entire contents of the scope, drawings and abstract are hereby incorporated by reference as the disclosure of the specification of the present invention.

Claims (5)

The body,
A nozzle body that is detachably combined with the main body,
The nozzle body is provided with a cleaning liquid discharge flow path and a nozzle side suction flow path so that the cleaning liquid sprayed on the wound portion is sucked from the nozzle side suction flow path,
The main body is provided with a starting end of a suction channel that communicates with a terminal end of the nozzle side suction channel at the time of the combination,
A wound cleaning apparatus in which a filter part is formed at the starting end of the suction channel to prevent entry of a bone fragment or the like having a size that may cause clogging of the suction channel. The wound cleaning apparatus according to claim 1, wherein a storage part such as a bone fragment is formed at the end of the nozzle side suction channel. The reservoir is connected to the end of the first flow path at the side of the central axis of the first flow path with the start end as the start end of the nozzle side suction flow path, and the end is the end of the nozzle side suction flow path. The wound cleaning apparatus according to claim 2, which is formed by a second flow path. The main body includes a substantially straight barrel portion having a tip portion as an attachment portion of the nozzle body, and a grip portion projecting laterally from a rear end of the barrel portion, and the grip portion of the barrel portion. The wound cleaning apparatus according to any one of claims 1 to 3, wherein a switch of a driving circuit of a motor that constitutes the discharge mechanism of the cleaning water is provided on a side opposite to the protruding side. A tube serving as the suction channel;
A tube serving as a supply flow path for the cleaning liquid;
A tube having a C-shaped cross section that can hold the power cable constituting the drive circuit of the motor that constitutes the discharge mechanism of the washing water by pushing it into the inside from the open portion;
The wound cleaning according to any one of claims 1 to 4, further comprising an assembled tube body as an extrusion-molded product having a thin wall portion between adjacent tubes and integrating the adjacent tubes. apparatus.

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