JP7293526B2 - medical instruments - Google Patents

Description

The present invention relates to medical devices.

For example, when a patient loses consciousness due to an accident or the like, the airway may become blocked. In this case, an intubation support device is used in combination with an intubation tube to secure the airway (see, for example, Patent Document 1). The intubation assistance device described in Patent Literature 1 includes a device main body having a display composed of a liquid crystal display element or the like, and an intubation support tool that is detachably attached to the device main body and guides an intubation tube. In addition, when using an intubation assisting device, it is necessary to sterilize the device body and the intubation assisting device.

JP 2007-117114 A

However, in the intubation assisting device described in Patent Document 1, the intubation assisting device can be sterilized as it is, but the main body of the device incorporates electronic components such as a display, so a waterproof structure is required. If not, there is a problem that the sterilization treatment cannot be performed as it is.
SUMMARY OF THE INVENTION An object of the present invention is to provide a medical instrument that can be sterilized quickly and easily.

One aspect of the medical device of the present invention is an insertion section that is elongated and has a bending portion that bends or curves from the middle of the distal end side in the longitudinal direction, and is inserted into a living body;
an imaging unit that captures an image in the insertion direction of the insertion portion;
an irradiating unit that irradiates light in the insertion direction;
a display unit arranged on the proximal end side of the insertion unit and configured to display an image captured by the imaging unit; and a control unit configured to control operations of the display unit, the imaging unit, and the irradiation unit; a case that houses an electronic device that operates the display unit, the imaging unit, and the irradiation unit;
The case includes a box-shaped main body,
a lid portion that is supported by the body portion so as to be openable and closable, allows the electronic device to be taken in and out of the body portion in an open state , and maintains airtightness with the body portion in a closed state;
and a connector section provided in the body section for electrically connecting the control section, the imaging section, and the irradiation section in a housed state in which the electronic device is housed in the body section.

According to the present invention, sterilization can be performed quickly and easily.

FIG. 1 is an exploded perspective view showing a first embodiment when the medical device of the present invention is applied to a muscle hook (medical hook). 2 is a block diagram of the medical device shown in FIG. 1; FIG. 3 is a longitudinal sectional view showing a closed state of a lid portion of a case provided in the medical instrument shown in FIG. 1. FIG. FIG. 4 is a view (plan view) seen from the direction of arrow A in FIG. 5 is a cross-sectional view taken along the line BB in FIG. 4. FIG. FIG. 6 is a vertical cross-sectional view showing a process of housing a smart phone in a case included in the medical device shown in FIG. FIG. 7 is a vertical cross-sectional view showing a state in which the smart phone is completely stored from the state shown in FIG. FIG. 8 is a vertical cross-sectional view showing a process of housing a smart phone in a case included in the medical device shown in FIG. 1; FIG. 9 is a vertical cross-sectional view showing a state in which the smartphone is completely stored from the state shown in FIG. FIG. 10 is a side view showing a second embodiment in which the medical instrument of the present invention is applied to a muscle hook. 11 is a side view showing a state in which the connector portion of the case of the medical instrument is deformed from the state shown in FIG. 10. FIG. FIG. 12 is an exploded perspective view showing a third embodiment when the medical device of the present invention is applied to a muscle hook.

BEST MODE FOR CARRYING OUT THE INVENTION The medical device of the present invention will be described in detail below based on preferred embodiments shown in the accompanying drawings.
<First embodiment>
FIG. 1 is an exploded perspective view showing a first embodiment when the medical device of the present invention is applied to a muscle hook (medical hook). 2 is a block diagram of the medical device shown in FIG. 1; FIG. 3 is a longitudinal sectional view showing a closed state of a lid portion of a case provided in the medical instrument shown in FIG. 1. FIG. FIG. 4 is a view (plan view) seen from the direction of arrow A in FIG. 5 is a cross-sectional view taken along the line BB in FIG. 4. FIG. FIG. 6 is a vertical cross-sectional view showing a process of housing a smart phone in a case included in the medical device shown in FIG. FIG. 7 is a vertical cross-sectional view showing a state in which the smart phone is completely stored from the state shown in FIG. FIG. 8 is a vertical cross-sectional view showing a process of housing a smart phone in a case included in the medical device shown in FIG. 1; 1, 3, and 5 to 9 are referred to as "upper (or upper)" and the lower side as "lower (or lower)" (FIGS. 10 to 9). 12).

The medical device 1 shown in FIG. 1 includes an insertion section 2 to be inserted into a living body, an imaging section 11 for capturing an image in the insertion direction of the insertion section 2, and an irradiation section for irradiating light in the insertion direction of the insertion section 2. A part 12, a smart phone 30 as an electronic device 3 that performs various operations, and a case 4 that houses the smart phone 30 (electronic device 3), which are assembled to be used as a medical hook. . The configuration of each part will be described below. The "muscle hook" is a medical instrument that pulls the tissue around the surgical field (incision) in vivo to make the surgical field easier to see.

The insertion portion 2 is composed of an elongated hard member. The insertion portion 2 is detachably attached to the connector portion 44 of the case 4 at its base end portion.
The insertion portion 2 has a bent portion 21 that is bent or curved from the middle of the distal end side in the longitudinal direction. During surgery, the proximal end of the insertion section 2 can be grasped to insert the bending section 21 into the living body, and the bending section 21 can be pulled in a desired direction. As a result, the tissue surrounding the surgical field in the living body is also pulled in that direction, thereby making it easier to see the surgical field.

The total length _L21 of the bent portion 21 is not particularly limited, and is preferably, for example, 100 mm or more, more preferably 100 mm or more and 200 mm or less. Thereby, the insertion portion 2 has a size suitable for being used together with the smartphone 30 . Various insertion portions 2 having different total lengths _L21 of the bent portions 21 are prepared in advance, and the insertion portion 2 is appropriately selected and used.

The bending angle θ ₂₁ of the bending portion 21 is not particularly limited, and is preferably 70° or more and 110° or less, more preferably 85° or more and 95° or less.
A constituent material of the insertion portion 2 is not particularly limited, and examples thereof include various resin materials and various metal materials.

The insertion portion 2 also has a groove 22 formed over its entire length. A flexible tube 13 can be inserted into the groove 22 from the middle in the longitudinal direction toward the distal end. The tube 13 is used for air supply/exhaust during surgery, or for water injection/drainage. For example, if smoke from an electrocautery fills the surgical field, the smoke can be expelled from the surgical field through the tube 13, thus securing the field of vision.

Moreover, it is preferable that the insertion portion 2 has a lock portion (not shown) that maintains the state of being attached to the case 4 . As a result, it is possible to prevent the medical device 1 from being unintentionally (unexpectedly) released from being worn while the medical device 1 is in use. You can continue to check at section 32 .

The insertion section 2 incorporates an imaging section 11 and an irradiation section 12 .
The imaging unit 11 has a CCD (Charge Coupled Device) 111 or the like, which is an imaging element arranged at the distal end of the insertion unit 2, and images the surgical field located in front of the insertion direction of the insertion unit 2 and its surroundings. can do. Note that the CCD 111 may be supported so as to be movable along the longitudinal direction of the insertion section 2 .

The irradiating section 12 has a light emitting diode 121 or the like, which is a light emitting element arranged side by side with the CCD 111 at the distal end of the inserting section 2, and emits light toward the surgical field positioned forward in the inserting direction of the inserting section 2 and its surroundings. can be irradiated. As a result, a clear image of the surgical field can be captured. In addition, the light emitting diode 121 may be supported so as to be movable along the longitudinal direction of the insertion portion 2 .

Note that the imaging element and the light emitting element are not limited to being provided in the insertion section 2, and may be provided in the electronic device 3, for example. When an imaging device is provided in the electronic device 3, it is preferable that the insertion section 2 is provided with an optical fiber for guiding light to the imaging device. Similarly, when a light-emitting element is provided in the electronic device 3 , it is preferable that the insertion section 2 is provided with an optical fiber that guides light to the distal end of the insertion section 2 .

As shown in FIG. 1 , the electronic device 3 includes a smart phone 30 arranged on the proximal end side of the insertion section 2 . As shown in FIG. 2 , the electronic device 3 is a device that has a control section 31 and a display section 32 and operates the display section 32 , the imaging section 11 and the irradiation section 12 . In addition, although the smart phone 30 is used as the electronic device 3 in this embodiment, it is not limited to this, and various electronic devices such as a mobile phone may be used.

The control unit 31 includes a CPU (Central Processing Unit), various memories, and the like. In the electronic device 3 , the connector section 33 is electrically connected to the connector section 112 of the imaging section 11 and the connector section 122 of the irradiation section 12 via the connector section 44 of the case 4 . Thereby, the control unit 31 can control the operation of the imaging unit 11 and the irradiation unit 12 . The control unit 31 is also electrically connected to the display unit 32 and can also control the operation of the display unit 32 . In addition, in the present embodiment, the connector portion 33 is arranged at the central portion in the width direction of the electronic device 3 .

The display unit 32 has, for example, a liquid crystal screen, and can display an image captured by the imaging unit 11 via this liquid crystal screen. As a result, the user of the medical instrument 1 can confirm the image displayed on the display unit 32 when performing surgery, and can therefore easily and smoothly perform the surgery.

The electronic device 3 is housed in the case 4 and used during surgery in that state. Hereinafter, the state in which the electronic device 3 is housed in the case 4 will be referred to as "housed state". As shown in FIG. 1, the case 4 includes a flat box-shaped main body 41, a cover 42 supported by the main body 41 so as to be openable and closable, and a connector 43 fixed to the main body 41. and a buffer portion 44 arranged inside the body portion 41 .

The main body 41 has a rectangular bottom plate 411 and side plates 412 that stand upward from four sides of the bottom plate 411 . Note that the bottom plate 411 and the side plates 412 are preferably formed integrally. The outer shape of the main body 41 is not particularly limited as long as it is a box body, and may be flat as in the present embodiment, or may have other shapes.

The four side plates 412 include a side plate 412a and a side plate 412b having a larger size (area) when viewed from the side, and a side plate 412c and a side plate 412d having a smaller size (area) when viewed from the side than the side plates 412a and 412b. And there is. The side plates 412a and 412b face each other, and the side plates 412c and 412d face each other. At least the side plates 412a and 412b of the body portion 41 have transparency. As a result, for example, as shown in FIG. 1, when the display unit 32 of the electronic device 3 faces the side plate 412a in the housed state, the image displayed on the display unit 32 can be viewed through the side plate 412a. . Further, even when the display unit 32 of the electronic device 3 faces the side plate 412b in the housed state, the image displayed on the display unit 32 can be visually recognized through the side plate 412b. In this way, the side plates 412a and 412b also function as windows for viewing images displayed on the display unit 32 .

In the case 4, it is preferable that at least the inner surfaces (rear surfaces) of the side plates 412a and 412b are each subjected to anti-fogging treatment. This prevents the side plates 412a and 412b from fogging up even when various conditions such as temperature and humidity inside the case 4 change during use of the medical device 1, and thus the display section 32 of the electronic device 3 can display The resulting image can be easily viewed. Further, the case 4 may be provided with an adjustment valve or an adjustment connector as an adjustment unit for adjusting the temperature and humidity inside the case 4 .
Moreover, the display unit 32 of the electronic device 3 has a touch panel function. In this case, case 4 corresponds to this touch panel function. As a result, the display unit 32 can be pressed via the side plate 412a or the side plate 412b, for example.

In addition, the body portion 41 has an opening portion 413 that opens upward on the side opposite to the bottom plate 411 . The electronic device 3 can be put in and taken out of the main body 41 through the opening 413 .
The lid portion 42 is connected to the edge portion of the opening portion 413 via a support portion 45 that rotatably supports the lid portion 42 . The lid portion 42 has a plate shape, and can open and close the opening portion 413 by being rotated by the support portion 45 . In the open state, the electronic device 3 can be inserted into and removed from the main body portion 41, and in the closed state, the airtightness between the main body portion 41 and the lid portion 42 is maintained.

As shown in FIG. 3, a packing 46 is fixed to the back side of the lid portion 42, that is, the portion facing the inside of the body portion 41 in the closed state. Thereby, the airtightness (liquidtightness) between the body portion 41 and the lid portion 42 in the closed state can be maintained.
The case 4 also has a lock portion (not shown) that maintains the closed state of the lid portion 42 . As a result, the cover 42 can be prevented from being unintentionally (unexpectedly) opened during the sterilization process, which will be described later, and the connector 43 and the like inside the case 4 can be protected.

The constituent material of the main body portion 41 and the lid portion 42 is not particularly limited, and examples thereof include various resins such as polypropylene, cyclic polyolefin, and polyester. The material constituting the packing 46 is not particularly limited, and examples thereof include various rubber materials such as isoprene rubber, butadiene rubber, styrene-butadiene rubber, and silicone rubber, or various thermoplastic elastomers such as polyurethane and styrene. and other elastic materials.

As shown in FIG. 1 , the connector portion 43 is fixed to the body portion 41 on the opposite side of the lid portion 42 , that is, to the bottom plate 411 of the body portion 41 . A through hole 414 is formed in the bottom plate 411 , and the connector portion 43 is inserted into the through hole 414 . A ring-shaped packing 47 for sealing is provided between the connector portion 43 and the edge portion of the through hole 414 . In addition, in the present embodiment, the connector portion 43 is arranged at the central portion in the width direction of the main body portion 41 .

The connector portion 33 of the electronic device 3 is connected to the connector portion 43 from the inside of the body portion 41 , and the connector portion 112 of the imaging portion 11 and the connector portion 122 of the irradiation portion 12 are connected from the outside of the body portion 41 . is connected. As a result, the control unit 31 of the electronic device 3 can be electrically connected to the image pickup unit 11 and the irradiation unit 12 when the electronic device 3 is in the housed state. can.
The configuration of the connector portion 43 is not particularly limited, and for example, it may be configured to have a rigid connector housing 431 and a plurality of terminals (not shown) arranged in the connector housing 431. .

As shown in FIG. 4 , a cushioning portion 44 is arranged inside the body portion 41 . The cushioning portion 44 is composed of a porous body having elasticity (cushioning properties), that is, flexibility, and the material thereof is not particularly limited. For example, a material containing silicone can be used.

The buffer portion 44 includes a plate-like first portion 48a fixed to the side plate 412a of the body portion 41, a plate-like second portion 48b fixed to the side plate 412b of the body portion 41, and a side plate 412c of the body portion 41. It has a fixed plate-like third portion 48 c and a plate-like fourth portion 48 d fixed to the side plate 412 d of the main body portion 41 . An opening 481 is formed through each of the first portion 48a and the second portion 48b in the thickness direction thereof. As a result, the display unit 32 of the electronic device 3 faces one of the openings 481 in the housed state, so that the user can visually recognize the display unit 32 facing the opening 481 through the case 4. .

Further, each of the first portion 48a to the fourth portion 48d has an inclined surface 482 inclined with respect to the direction in which the electronic device 3 is inserted into the case 4 on its upper portion, that is, on the opening 413 side. Accordingly, when inserting (storing) the electronic device 3 into the case 4 , the electronic device 3 is guided by each inclined surface 482 , so that the insertion can be performed smoothly. Thus, each inclined surface 482 functions as an introduction portion when introducing the electronic device 3 into the case 4 .

The first portion 48a and the second portion 48b have the same elastic modulus, and the third portion 48c and the fourth portion 48d have the same elastic modulus. As a result, as shown in FIGS. 6 and 8, the connector portion 33 of the electronic device 3 can be guided toward the connector portion 43 of the case 4 regardless of the size of the electronic device 3 when the electronic device 3 is placed in the housed state. can. As shown in FIGS. 7 and 9, in the housed state, the position of the electronic device 3 is fixed regardless of the size of the electronic device 3. Therefore, the connector portion 33 of the electronic device 3 and the case 4 connection with the connector portion 43 of is maintained. In this manner, the first to fourth portions 48a to 48d, that is, the buffer portion 44 functions as a guide portion that guides the connector portion 33 of the electronic device 3 toward the connector portion 43 of the case 4, and also functions as a guide portion in the housed state. It functions as a regulation section that regulates the position of the electronic device 3 .

By the way, when using the medical instrument 1 in an operation, it is necessary to sterilize the medical instrument 1 prior to its use. In this case, first, the insertion portion 2 and the case 4 are connected to be in an assembled state. At this time, the electronic device 3 is not yet housed in the case 4 . Next, the lid portion 42 is closed, and the insertion portion 2 and the case 4 are sterilized. The sterilization treatment is not particularly limited, and examples thereof include autoclave sterilization (AC sterilization) and ethylene oxide gas sterilization (EOG sterilization). Next, the electronic device 3 is housed in the opened case 4, and then the case 4 is closed again. As a result, the unclean field (the inside of the case 4 and the electronic device 3) can be separated from the clean field, and the medical instrument 1 can be used in surgery as it is.

As described above, the sterilization process can be performed with the case 4 closed, so that the electric parts such as the connector portion 43 inside the case 4 can be protected from the sterilization environment. In addition, by performing the sterilization process while the electronic device 3 is not yet housed in the case 4, the electronic device 3 is prevented from being exposed to the sterile environment. can be protected. As described above, the medical instrument 1 can be quickly and easily sterilized even if the electronic device 3 does not have a waterproof structure.

<Second embodiment>
FIG. 10 is a side view showing a second embodiment in which the medical device of the present invention is applied to a muscle hook. 11 is a side view showing a state in which the connector portion of the case of the medical instrument is deformed from the state shown in FIG. 10. FIG.
The second embodiment of the medical device of the present invention will be described below with reference to these drawings, but the description will focus on the differences from the above-described embodiment, and the description of the same items will be omitted.
This embodiment is the same as the first embodiment except that the configuration (shape) of the connector portion is different.

As shown in FIGS. 10 and 11, the connector portion 43 is formed of a flexible elongated body, and can be bent and deformed in the middle of its longitudinal direction. Thereby, the posture of the electronic device 3 with respect to the insertion section 2, that is, the orientation of the display section 32 can be changed in the housed state. For example, when there is a user who performs surgery using the medical instrument 1 and an assistant who assists the user, the assistant changes the orientation of the display unit 32 to facilitate visual recognition of the display unit 32 for the user. can be made

The configuration of the connector section 43 is not particularly limited, and for example, it may be configured to have an elastic tube 432 and a plurality of cable terminals (not shown) arranged inside the tube 432 . Further, it is preferable that a linear core material (not shown) made of, for example, a metal material is embedded in the tube 432 . Thereby, the connector portion 43 has rigidity to the extent that it maintains the deformed state when it is bent and deformed. In this case, for example, even if the assistant releases the medical device 1, the state in which the orientation of the display unit 32 has been changed by the assistant is maintained.

<Third Embodiment>
FIG. 12 is an exploded perspective view showing a third embodiment when the medical device of the present invention is applied to a muscle hook.
Hereinafter, a second embodiment of the medical instrument of the present invention will be described with reference to this figure, but the description will focus on the differences from the above-described embodiment, and the description of the same items will be omitted.
This embodiment is the same as the first embodiment except that the configuration of the smartphone is different.

As shown in FIG. 12, a smartphone 30, which is the electronic device 3, has display units 32 on both sides thereof. As a result, for example, when there is a user who performs surgery using the medical instrument 1 and an assistant who assists the user, one of the images displayed on the two display units 32 in the retracted state can be displayed. can be viewed by the user and the other image can be viewed by the assistant.
In addition, the electronic device 3 can perform a correction to reverse the image displayed on the two display units 32 horizontally and a correction to reverse the image vertically. As a result, the state of the surgical field visually recognized through each image can be accurately grasped.

Although the illustrated embodiment of the medical instrument of the present invention has been described above, the present invention is not limited to this, and each part constituting the medical instrument may have any configuration capable of exhibiting similar functions. can be replaced with Moreover, arbitrary components may be added.
Moreover, the medical device of the present invention may be a combination of any two or more configurations (features) of the above embodiments.

Moreover, although the medical device of the present invention is applied to the muscle hook in each of the above embodiments, it is not limited to this, and can also be applied to, for example, endoscopes and laryngoscopes.
In addition, although the medical instrument of the present invention is sterilized without the electronic device housed in the case in each of the above embodiments, the present invention is not limited to this, and the sterilization may be performed while the electronic device is housed.

In addition, when the display unit of the electronic device has a touch panel function and the electronic device has an operation button in addition to the display unit, the case is configured to be able to press the operation button via, for example, a side plate. there is Such a configuration is not particularly limited, and for example, it is preferable that the side plate is provided with a pressing portion for pressing the operation button.
Further, when the display unit of the electronic device can display a three-dimensional image, the user can wear glasses for viewing the three-dimensional image when using the medical device.

Reference Signs List 1 medical device 2 insertion portion 21 bending portion 22 groove 3 electronic device 30 smartphone 31 control portion 32 display portion 33 connector portion 4 case 41 main body portion 411 bottom plate 412 side plate 412a side plate 412b side plate 412c side plate 412d side plate 413 opening 414 through hole 42 lid Section 43 Connector Section 431 Connector Housing 432 Tube 44 Buffer Section 45 Support Section 46 Packing 47 Packing 48a First Section 48b Second Section 48c Third Section 48d Fourth Section 481 Opening 11 Imaging Section 111 CCD
112 connector part 12 irradiation part 121 light emitting diode 122 connector 13 tube L ₂₁ total length θ ₂₁ bending angle

Claims (8)

an insertion section which has a long shape, has a bending portion which is bent or curved from the middle of the distal end side in the longitudinal direction, and is inserted into the living body;
an imaging unit that captures an image in the insertion direction of the insertion portion;
an irradiating unit that irradiates light in the insertion direction;
a display unit arranged on the proximal end side of the insertion unit and configured to display an image captured by the imaging unit; and a control unit configured to control operations of the display unit, the imaging unit, and the irradiation unit; a case that houses an electronic device that operates the display unit, the imaging unit, and the irradiation unit;
The case includes a box-shaped main body,
a lid portion that is supported by the body portion so as to be openable and closable, allows the electronic device to be taken in and out of the body portion in an open state , and maintains airtightness with the body portion in a closed state;
and a connector section provided in the body section for electrically connecting the control section, the imaging section, and the irradiation section in a housed state in which the electronic device is housed in the body section. medical equipment. 2. The medical device of claim 1, wherein sterilization is performed in said closed state. 3. The medical instrument according to claim 2, wherein the electronic device is not yet housed in the case when the sterilization process is performed. The medical device according to any one of claims 1 to 3, wherein the connector portion is arranged on the side opposite to the lid portion with respect to the body portion. The medical device according to any one of claims 1 to 4, wherein the connector section is flexible. The medical instrument according to any one of claims 1 to 5, wherein the case has a regulating portion that regulates the position of the electronic device in the housed state. The medical instrument according to any one of claims 1 to 6, wherein the case has a guide portion that guides a portion of the electronic device to be connected to the connector portion to the connector portion when the case is placed in the housed state. The medical device according to any one of claims 1 to 7, wherein the total length of the bent portion is 100 mm or more.

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