JP2016052432A - Nasal hard mirror lens part cleaning method and nasal hard mirror lens part cleaning tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for quickly and easily cleaning a nasal hard mirror lens part having poor visibility due to adhesion of blood or the like in a nasal surgery, and to provide a nasal hard mirror lens part cleaning tool not narrowing a work space of the nasal surgery.SOLUTION: The nasal hard mirror lens part cleaning tool includes: a main tubular member including a lumen communicating a distal end and a proximal end; and a sub tubular member including a lumen supplying cleaning water. The main tubular member includes a hole penetrating from an outer side face to an inner side face of a tube wall, an inner diameter of the main tubular member from the proximal end to distal end corresponds to an outer diameter of a hard mirror, and a groove is formed on a tube wall inner face from the mouth of the hole opened in a tube wall inner side face to the distal end of the main tubular member. The sub tubular member is connected such that the lumen is communicated with the lumen of the hole opened in the tube wall side face of the main tubular member, and supplied cleaning water flows along an outer side face of the hard mirror by utilizing surface tension of the cleaning water.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for cleaning a nasal rigid mirror lens part and a cleaning tool for a nasal rigid mirror lens part. More specifically, the present invention relates to a method for quickly and easily cleaning a lens portion of a nasal rigid endoscope that has become poorly visible due to adhesion of blood or the like in nasal surgery, and nasal stiffness that does not reduce the working space of nasal surgery. The present invention relates to a mirror lens cleaning tool.

  Nasal rigid surgery is a standard practice in otolaryngology. In addition, transnasal rigid surgery is less invasive and quicker to recover after surgery than craniotomy, and is also a technique adopted in many brain surgeries. For example, pituitary surgery, skull base surgery, sinus surgery, and the like are performed under a nasal rigid endoscope.

  The rigid endoscope 16 includes a thin outer optical tube 15 that can be inserted into a nostril, a lens unit and an illumination unit installed at the distal end of the optical tube, and an operation unit installed at the proximal end of the optical tube. 14 is a medical instrument in which an optical visual tube is inserted into a nostril, and a signal passes through the lens portion L, the optical visual tube 15 and the operation portion 14 and the state of an operative field can be displayed on a monitor. However, during the operation, the visual field may be blocked by blood or the like adhering to the lens part or by condensation.

  When the field of view is blocked by dirt on the lens part, it is necessary to interrupt the operation, remove the rigid mirror, and clean the lens part. The operations of removing, cleaning, and reinserting the rigid endoscope are complicated and hinder the smooth progress of the operation. In addition, when bleeding is frequent, the frequency of cleaning the rigid endoscope lens portion is increased, and the frequency of interruption of the operation is increased. Therefore, the time required for the operation becomes long, and it is difficult to continue the operation.

  In view of this, a method has been proposed in which a lens part is washed by covering the optical tube of the rigid endoscope with a sheath and supplying cleaning water to the distal end of the endoscope via the sheath (Patent Documents 1, 2, or 3). The outer diameter of the rigid endoscope is usually about 3 to 5 mm, but the outer diameter of the sheath is about 1 to 2 mm larger than the outer diameter of the rigid endoscope. Covering the optical scope of the rigid endoscope with a sheath further narrows the narrow working space called the nostril, increasing the difficulty of the operation. In addition, the sheath can be used for a rigid mirror having a large outer diameter of the optical tube, a rigid mirror having a projection or a step on the outer surface of the optical tube, a rigid mirror having a movable part or a bent part at the distal end of the optical tube, etc. There are restrictions such as being unable to use.

JP-A-7-246187 Japanese Patent Application Laid-Open No. 11-178791 JP 2002-119465 A Utility Model Registration No. 3186191

  An object of the present invention is to provide a method for quickly and easily cleaning a lens portion of a nasal rigid endoscope that has poor visibility due to adhesion of blood or the like in nasal surgery, and a nasal rigid mirror lens that does not narrow the working space for nasal surgery. It is to provide a cleaning tool for the department.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have completed the present invention including the following forms.

[1] Insert a rigid endoscope having a lens part at the distal end into the nostril so that the lens part is down,
Secure a gap between at least part of the outer surface of the rigid endoscope and the inner wall of the nostril,
A method for cleaning a nasal rigid endoscope lens unit, comprising transferring the cleaning water to the outer surface of the rigid endoscope using the surface tension of the cleaning water and delivering it to the lens unit.

[2] A tube for supplying cleaning water, and a fixing member for fixing one end of the tube to the outer surface on the proximal end side of the rigid endoscope,
A nasal rigid endoscope lens unit capable of flowing wash water supplied through the tube from the proximal end side to the distal end of the rigid endoscope by using the surface tension of the wash water. Cleaning tool.

[3] A main tubular member having a lumen communicating with the distal end and the proximal end, and a sub-tubular member having a lumen for supplying cleaning water,
The main tubular member has a hole penetrating from the outer surface to the inner surface of the tube wall, and the inner diameter from the proximal end to the distal end of the main tubular member is a size corresponding to the outer diameter of the rigid endoscope. And there is a groove on the inner surface of the tube wall from the mouth of the hole opened on the inner surface of the tube wall to the distal end of the main tubular member,
The sub-tubular member is connected so that the lumen communicates with the lumen of the hole opened on the outer surface of the tube wall of the main tubular member, and the washing water supplied through the sub-tubular member is connected to the outer surface of the rigid endoscope. A cleaning tool for a nasal rigid mirror lens part that can be transmitted using the surface tension of washing water.

[4] A main tubular member having a lumen communicating with the distal end and the proximal end, and a sub-tubular member having a lumen for supplying cleaning water,
The main tubular member has a hole penetrating from the outer surface to the inner surface of the tube wall, and the edge on the proximal end side of the mouth of the hole opened from the proximal end of the main tubular member to the inner surface of the tube wall Alternatively, the inner diameter of the inner tube up to a depth closer to the proximal end side than the edge is a size corresponding to the outer diameter of the rigid endoscope, and the distal end of the main tubular member from the mouth of the hole opened on the inner surface of the tube wall. The inner diameter between the ends is larger than the outer diameter of the rigid endoscope,
The sub-tubular member is connected so that the lumen communicates with the lumen of the hole opened on the outer surface of the tube wall of the main tubular member, and the washing water supplied through the sub-tubular member is connected to the outer surface of the rigid endoscope. A cleaning tool for a nasal rigid mirror lens part that can be transmitted using the surface tension of washing water.

[5] A main tubular member having a lumen communicating with the distal end and the proximal end, and a sub-tubular member having a lumen for supplying cleaning water,
The main tubular member has a hole penetrating from the outer surface to the distal end surface of the tube wall, and the inner diameter from the proximal end to the distal end of the main tubular member is large enough to correspond to the outer diameter of the rigid endoscope. Is,
The sub-tubular member is connected so that its lumen communicates with the lumen of the hole opened on the outer surface of the tube wall of the main tubular member, and the washing water supplied through the sub-tubular member passes the outer surface of the rigid endoscope. A cleaning tool for a nasal rigid mirror lens part that can be transmitted and flowed using the surface tension of cleaning water.

[6] The cleaning tool according to any one of [2] to [5], further including means for controlling a supply amount of cleaning water.
[7] The cleaning tool according to any one of [2] to [6], wherein the main tubular member has a tube wall that can be cleaved along the tube axis.
[8] The cleaning tool according to any one of [2] to [6], wherein the main tubular member has a C-shaped cross section.

  According to the cleaning method of the present invention, it is possible to quickly and easily clean a lens portion of a nasal rigid endoscope that has a poor visibility due to adhesion of blood or the like in nasal surgery. The cleaning tool for the nasal rigid mirror lens part of the present invention does not increase the outer diameter even when attached to the nasal rigid mirror, so that the working space for nasal surgery is not reduced, and the visibility is poor due to adhesion of blood, etc. When this happens, the lens part of the nasal rigid endoscope can be cleaned quickly and easily.

It is a perspective view which shows the cleaning tool which concerns on 2nd embodiment of this invention. It is sectional drawing of the cleaning tool shown in FIG. It is a figure which shows the state which attached the cleaning tool shown in FIG. 1 to the nasal rigid endoscope. It is a perspective view which shows the cleaning tool which concerns on 3rd embodiment of this invention. It is sectional drawing of the cleaning tool shown in FIG. It is a perspective view which shows the cleaning tool which concerns on 4th embodiment of this invention. It is sectional drawing of the cleaning tool shown in FIG. It is a perspective view which shows the cleavage state of the cleaning tool which concerns on 5th embodiment of this invention. It is a figure which shows the usage example of the cleaning tool which concerns on this invention.

[Cleaning tools]
With reference to the drawings, a nasal rigid endoscope lens unit cleaning tool according to an embodiment of the present invention will be described. This description is provided for the purpose of helping a more general understanding of the present invention, and the present invention is not limited to the following embodiments.

(First embodiment)
The cleaning tool for a nasal rigid endoscope lens unit according to the first embodiment of the present invention includes a cleaning water supply pipe and a fixing member.
The cleaning water supply pipe is not particularly limited as long as it can supply cleaning water. Examples of the tube include a tube, a hose, and a pipe. Since the infusion tube is a medical member that is easily available in a normal medical field, it can be preferably used as a washing water supply tube. The inner diameter of the cleaning water discharge port at one end of the tube is not particularly limited, but is preferably smaller than the thickness of the rigid endoscope.

  The structure of the fixing member is not particularly limited as long as one end of the tube can be fixed to the outer surface on the proximal end side of the rigid endoscope, for example, the outer surface on the proximal end side of the optical viewing tube 15. . For example, a rubber band, an adhesive tape, a clip, etc. are mentioned. When the tube is fixed to the rigid endoscope as described above by the fixing member, when the cleaning water is supplied through the tube, the cleaning water flows through the outer surface of the rigid mirror using the surface tension of the cleaning water, and the lens portion L Can be reached. In order for the cleaning water to flow along the outer surface of the rigid mirror due to the surface tension of the cleaning water, the cleaning water discharge port at one end of the tube is about 0 to 10 degrees with respect to the outer surface of the rigid mirror 16. It is preferable to open in the direction of the distal end of the rigid endoscope 16 with an inclination of.

(Second embodiment)
FIG. 1 is a perspective view showing a cleaning tool 210 for a nasal rigid endoscope lens unit according to a second embodiment of the present invention. FIG. 2 is a cross-sectional view of the cleaning tool 210.
The cleaning tool 210 includes a main tubular member 211 and a sub tubular member 212.
The main tubular member 211 has a lumen that communicates the distal end 217 and the proximal end 214. The inner diameter from the proximal end 214 to the distal end 217 of the main tubular member is a size corresponding to the outer diameter of the rigid endoscope 16. The rigid endoscope 16 can be fitted and fixed in this lumen.
The main tubular member 211 has a hole 213 that penetrates from the outer surface to the inner surface of the tube wall. Further, there is a groove 219 on the inner surface of the tube wall from the mouth of the hole 213 opened on the inner surface of the tube wall to the distal end of the main tubular member. When the rigid mirror is fitted, a gap is formed between the outer surface of the rigid mirror and the groove on the inner wall surface of the main tubular member.

  The secondary tubular member 212 has a lumen 218 for supplying cleaning water. The sub-tubular member 212 is connected so that its lumen communicates with the lumen of the hole 213 opened on the outer surface of the tube wall of the main tubular member 211. Thus, a gap formed between the outer surface of the rigid endoscope and the groove on the inner wall surface of the main tubular member from the lumen 218 of the sub-tubular member 212 through the through hole 213 provided in the tube wall of the main tubular member. A passage is formed. When cleaning water is supplied to this passage from the sub-tubular member 212 side, the cleaning water is discharged from the groove 219. The discharged cleaning water can flow along the outer surface of the rigid endoscope 16 by the surface tension of the cleaning water and reach the lens portion L of the rigid endoscope. In addition, although the subtubular member shown by FIG. 1 is linear shape, you may bend | curve in L-shape etc.

  In addition, the nasal rigid mirror lens part cleaning tool of the present invention is configured such that the inner surface of the main tubular member is in contact with the outer surface of the rigid mirror with an elastic body such as rubber, or a cushioning material such as felt or sponge. Or can be configured with

  In the nasal rigid lens lens cleaning tool of the present invention, a male or female connector 220 is preferably provided at the proximal end of the sub-tubular member. Thereby, the infusion tube to which the corresponding female or male connector 10 is attached can be connected to the proximal end of the sub-tubular member. Such a connector is not particularly limited by its structure, but a lock connector generally used in an infusion tube or the like is preferable.

  Wash water can be stored in a pack, bucket, tank, plunger, etc., and supplied to the sub-tubular member through an infusion tube connected by a connector.

  It is preferable that the nasal rigid mirror lens unit cleaning tool of the present invention further includes means for controlling the supply amount of cleaning water. The supply amount control means can be provided in a pipe or sub-tubular member for supplying cleaning water.

  When a soft material tube such as the infusion tube 13 is used in the flow path to the sub-tubular member, the flow rate can be controlled by the clamp 11. Examples of the clamp include a roller clamp, a one-touch clamp, and a slide clamp. A tube pump, a plunger pump, etc. can also be used for flow control. When the tube is made of hard resin, a valve, a three-way cock, etc. can be used. The operation start and stop of the pump and the opening adjustment of the valves and plugs can be performed manually by an operator or an assistant, or can be adjusted by remote operation using a remote controller or the like. In the control means by remote operation or the like, it is preferable that the operation can be performed by a part other than the hand, for example, a foot, because the operation is not interrupted by changing the jig.

  Since the cleaning water is supplied through the gap between the inner side surface of the main tubular member and the outer side surface of the rigid endoscope, it is necessary to increase the head of the cleaning water on the supply side. As a method of raising the cleaning water head, a method using a pressure jig such as a pump or a plunger, a pack 12 storing water, etc., can be used. There is a method of hanging at a higher position (see FIG. 9).

(Third embodiment)
FIG. 4 is a perspective view showing a cleaning tool 310 for a nasal rigid endoscope lens unit according to the third embodiment of the present invention. FIG. 5 is a cross-sectional view of the cleaning tool 310. The cleaning tool 310 of the third embodiment is the same as the cleaning tool 210 of the second embodiment except that the shape of the main tubular member 311 is different.
The cleaning tool 310 includes a main tubular member 311 and a sub-tubular member 312.
The main tubular member 311 has a lumen that communicates the distal end 317 and the proximal end 314. Further, the main tubular member 311 has a hole 313 that penetrates from the outer surface to the inner surface of the tube wall. The inner diameter of the rigid endoscope 16 from the proximal end 314 of the main tubular member to the proximal end edge of the mouth of the hole 313 opened on the inner surface of the tube wall or a depth closer to the proximal end side than the edge is provided. The size corresponds to the outer diameter. The rigid endoscope 16 can be fitted and fixed in this lumen.
Further, the inner diameter from the mouth of the hole 313 opened on the inner surface of the tube wall to the distal end 317 of the main tubular member is larger than the outer diameter of the rigid endoscope 16. When the rigid mirror is fitted, an annular gap is formed between the outer surface of the rigid mirror and the inner wall surface of the main tubular member.

  The secondary tubular member 312 has a lumen 318 for supplying cleaning water. The sub-tubular member 312 is connected so that its lumen communicates with the lumen of the hole 313 opened on the outer surface of the tube wall of the main tubular member. Thus, from the inner cavity 318 of the sub-tubular member 312 to the annular gap formed between the outer surface of the rigid endoscope and the inner wall surface of the main tubular member through the through hole 313 provided in the tube wall of the main tubular member. A passage is formed. When cleaning water is supplied to the passage from the sub-tubular member 312 side, the cleaning water is discharged from the annular gap. The discharged cleaning water can flow along the outer surface of the rigid endoscope 16 by the surface tension of the cleaning water and reach the lens portion L of the rigid endoscope.

(Fourth embodiment)
FIG. 6 is a perspective view showing a cleaning tool 410 for a nasal rigid endoscope lens unit according to the fourth embodiment of the present invention. FIG. 7 is a cross-sectional view of the cleaning tool 410. The cleaning tool 410 of the fourth embodiment is the same as the cleaning tool 210 of the second embodiment except that the shapes of the hole 413 and the main tubular member 411 are different.
The cleaning tool 410 includes a main tubular member 411 and a sub-tubular member 412.
The main tubular member 411 has a lumen that communicates the distal end 417 and the proximal end 414. Further, the main tubular member 411 has a hole 413 penetrating from the outer surface of the tube wall to the distal end surface. The hole 413 may be a hole bent in an L shape as shown in FIG. 6 or may be a hole bent in another way. The main tubular member 411 has a size in which the inner diameter from the proximal end to the distal end of the main tubular member corresponds to the outer diameter of the rigid endoscope. The rigid endoscope 16 can be fitted and fixed in the lumen of the main tubular member 411.

  The sub-tubular member 412 has a lumen 418 for supplying cleaning water. The sub-tubular member 412 is connected so that the lumen communicates with the lumen of the hole 413 opened in the outer surface of the tube wall of the main tubular member. As a result, a passage is formed from the lumen 418 of the sub-tubular member 412 to the distal end of the main tubular member through the through hole 413 provided in the tube wall of the main tubular member. When cleaning water is supplied to the passage from the sub-tubular member 412 side, the cleaning water is discharged from the distal end opening of the through hole 413. The discharged cleaning water can flow along the outer surface of the rigid endoscope 16 by the surface tension of the cleaning water and reach the lens portion L of the rigid endoscope.

(Fifth embodiment)
FIG. 8 is a perspective view showing a cleaning tool 510 for a nasal rigid endoscope lens unit according to a fifth embodiment of the present invention. The cleaning tool 510 of the fifth embodiment is the same as the cleaning tool 310 of the third embodiment except that the shape of the main tubular member is different. Further, the cleaning tool 510 is the same as the cleaning tool 310 of the third embodiment when attached to the rigid endoscope. That is, from the inner cavity 518 of the sub-tubular member 512 to the annular gap formed between the outer surface of the rigid endoscope and the inner wall surface of the main tubular member through the through-hole 513 provided in the tube wall of the main tubular member. A passage is formed. When cleaning water is supplied to the passage from the sub-tubular member 512 side, the cleaning water is discharged from the annular gap. The discharged cleaning water can flow along the outer surface of the rigid endoscope 16 by the surface tension of the cleaning water and reach the lens portion L of the rigid endoscope.

  The cleaning tool 510 is configured such that the tube wall of the main tubular member can be cleaved along the tube axis. The cleaving portion 519 can be opened to fit the rigid endoscope into the main tubular member. In order to sufficiently fix the rigid endoscope, it is preferable that the cleaving portion of the main tubular member has a closing force due to the elastic force of the main tubular member. In order to further increase the fixing force, it is preferable to provide a buckle (not shown) or the like at the cleavage portion 519. By tightening the fitted rigid mirror with a buckle or the like, the cleaning tool 510 can be securely fixed to the rigid mirror.

  In the cleaning tool 510 of the fifth embodiment, when the cleavage portion of the main tubular member 512 is tightened, the outer surface of the rigid endoscope is surrounded once, but the main tubular member has a cross-section in the tightened state. It is C-shaped and does not have to completely surround the outer surface once when attached to the rigid endoscope.

[Cleaning method]
In the method for cleaning a rigid endoscope according to the present invention, a rigid endoscope 16 having a lens portion L at a distal end is inserted into a nostril so that the lens portion faces downward, and at least a part of the outer surface of the rigid endoscope, a nostril inner wall, The cleaning water is transferred to the outer surface on the proximal end side of the rigid endoscope using the surface tension of the cleaning water and delivered to the lens portion L at the distal end. The angle with respect to the horizontal plane of the rigid endoscope 16 when inserted into the nostril is not particularly limited as long as the washing water flows along the outer surface, and is, for example, 30 to 90 degrees. In the cleaning method of the present invention, since the sheath is not used, the thickness of the rigid endoscope 16 inserted into the nostril is not increased by the sheath. In nasal surgery, a suction tube for sucking bleeding, body fluid, etc. is usually used, and thus the supplied washing water is removed from the surgical field by the suction tube.

As shown in FIG. 3, when flowing along the outer surface, the washing water WD gathers under the outer surface of the rigid endoscope 16 due to gravity, but the surface tension does not cause the water to fall from the outer surface, but travels along the outer surface. To the distal end of the rigid endoscope. The washing water WD that has reached the distal end does not fall immediately from the distal end, but flows around the lens portion L on the distal end surface and flows on the surface of the lens portion L due to the surface tension of the water. Thereby, dirt such as blood and fogging due to moisture are removed from the lens portion.
In the case where the sheath is used, in order to inject the cleaning water toward the lens unit, it is necessary to provide a means for sucking water or to provide an injection nozzle facing the lens unit. Therefore, the present invention has a remarkable effect as compared with the prior art.

210, 310, 410, 510: Cleaning tool for nasal rigid endoscope lens part 211, 311, 411, 511: Main tubular member 212, 312, 312, 512: Sub tubular member 213, 313, 413, 513: Hole 214, 314, 414, 514: proximal end 217, 317, 417, 517: distal end 218, 318, 418, 518: lumen of the secondary main tubular member 219: groove 220: connector 519: cleavage part 10: connector 11: CLEMME 12: Washing water pack 13: Infusion tube 14: Operation part 15: Optical vision part 16: Nasal rigid mirror L: Lens part WD: Washing water

Claims (8)

Insert a rigid endoscope having a lens part at the distal end into the nostril so that the lens part is down,
Secure a gap between at least part of the outer surface of the rigid endoscope and the inner wall of the nostril,
A method for cleaning a nasal rigid endoscope lens unit, comprising transferring the cleaning water to the outer surface of the rigid endoscope using the surface tension of the cleaning water and delivering it to the lens unit. A tube for supplying cleaning water, and a fixing member for fixing one end of the tube to the outer surface on the proximal end side of the rigid endoscope,
A nasal rigid endoscope lens unit capable of flowing wash water supplied through the tube from the proximal end side to the distal end of the rigid endoscope by using the surface tension of the wash water. Cleaning tool. A main tubular member having a lumen communicating with the distal end and the proximal end, and a sub-tubular member having a lumen for supplying cleaning water;
The main tubular member has a hole penetrating from the outer surface to the inner surface of the tube wall, and the inner diameter from the proximal end to the distal end of the main tubular member is a size corresponding to the outer diameter of the rigid endoscope. And there is a groove on the inner surface of the tube wall from the mouth of the hole opened on the inner surface of the tube wall to the distal end of the main tubular member,
The sub-tubular member is connected so that the lumen communicates with the lumen of the hole opened on the outer surface of the tube wall of the main tubular member, and the washing water supplied through the sub-tubular member is connected to the outer surface of the rigid endoscope. A cleaning tool for a nasal rigid mirror lens part that can be transmitted using the surface tension of washing water. A main tubular member having a lumen communicating with the distal end and the proximal end, and a sub-tubular member having a lumen for supplying cleaning water;
The main tubular member has a hole penetrating from the outer surface to the inner surface of the tube wall, and the edge on the proximal end side of the mouth of the hole opened from the proximal end of the main tubular member to the inner surface of the tube wall Alternatively, the inner diameter of the inner tube up to a depth closer to the proximal end side than the edge is a size corresponding to the outer diameter of the rigid endoscope, and the distal end of the main tubular member from the mouth of the hole opened on the inner surface of the tube wall. The inner diameter between the ends is larger than the outer diameter of the rigid endoscope,
The sub-tubular member is connected so that the lumen communicates with the lumen of the hole opened on the outer surface of the tube wall of the main tubular member, and the washing water supplied through the sub-tubular member is connected to the outer surface of the rigid endoscope. A cleaning tool for a nasal rigid mirror lens part that can be transmitted using the surface tension of washing water. A main tubular member having a lumen communicating with the distal end and the proximal end, and a sub-tubular member having a lumen for supplying cleaning water;
The main tubular member has a hole penetrating from the outer surface to the distal end surface of the tube wall, and the inner diameter from the proximal end to the distal end of the main tubular member is large enough to correspond to the outer diameter of the rigid endoscope. Is,
The sub-tubular member is connected so that its lumen communicates with the lumen of the hole opened on the outer surface of the tube wall of the main tubular member, and the washing water supplied through the sub-tubular member passes the outer surface of the rigid endoscope. A cleaning tool for a nasal rigid mirror lens part that can be transmitted and flowed using the surface tension of cleaning water.   The cleaning tool according to any one of claims 2 to 5, further comprising means for controlling a supply amount of cleaning water.   The cleaning tool according to any one of claims 2 to 6, wherein the main tubular member is configured such that the tube wall can be cleaved along the tube axis.   The cleaning tool according to any one of claims 2 to 6, wherein the main tubular member has a C-shaped cross section.

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