JP6860954B2 - Insert device - Google Patents

Description

The present invention relates to an insertion device including a grip portion that can be gripped together with other insertion devices.

Conventionally, for example, in an endoscopic system, a parent-child endoscopic system is known as a device for observing or treating the inside of a bile duct or a pancreatic duct using a pair of insertion devices. In this parent-child endoscope system, another insertion device, the parent endoscope, is inserted up to the duodenum and inserted into the treatment tool insertion channel provided in the parent endoscope, which is an insertion device for child endoscopy. Observation or treatment within the bile duct or pancreatic duct is performed by selectively inserting a mirror from the duodenal papilla into the bile duct or pancreatic duct.

At that time, it is more efficient to bundle both endoscopes and operate them collectively by one operator rather than operating the parent endoscope and the child endoscope individually by different operators (operators). In some cases, it is good and highly convenient. Therefore, for example, in the endoscopic system described in Patent Document 1 (Japanese Patent Laid-Open No. 2009-530051), a strap is provided at the operation portion of the catheter assembly which is another insertion device, and this strap is used as the insertion device. A technique for fixing this catheter assembly to a desired position of an endoscope by wrapping it around an operating portion of the endoscope is disclosed.

Special Table 2009-530051 No.

By the way, when observing the inside of the body cavity of a patient or performing necessary treatment, as a procedure, first, one operator inserts another insertion device into the body cavity. Next, another operator may insert the insertion device into the treatment tool insertion channel provided in the other insertion device and guide the insertion device to an observation site or a treatment site requiring the insertion device.

After that, when one operator tries to bundle both insertion devices and operate them all at once, in the technique disclosed in Patent Document 1, the operator has already grasped the other insertion device. It is necessary for another operator to wrap the strap provided on the insertion device around the other insertion device to fix it. While another operator wraps the strap of the insertion device around the other insertion device, a series of operations using both insertion devices must be temporarily interrupted, which is inefficient and inconvenient. ..

Further, when both insertion devices are bundled and operated by one operator and then the two insertion devices are to be separated and operated individually, it is necessary to dissociate the strap from the other insertion devices. At this time, it is necessary to temporarily suspend a series of operations by both insertion devices, which has a disadvantage that the operation efficiency is lowered.

In view of the above circumstances, the present invention is highly convenient because even when it is operated together with another insertion device and then individually operated, a series of continuous operations can be efficiently performed without interruption. It is an object of the present invention to provide an insertion device capable of obtaining sex.

One embodiment of the present invention is an insertion device that can be inserted into a channel provided in another insertion device, has a longitudinal axis, and is formed of an operation unit that can be inserted and that protrudes from the operation unit. A grip portion having a contact surface that can be contacted with the other insertion device and can be gripped together with the other insertion device, and a grip portion provided on the grip portion, formed in a dimension shorter than the contact surface in the longitudinal axis direction. , A hooking portion on which a finger for gripping the gripping portion can be hooked is provided.

According to the present invention, even when the insertion device is operated together with another insertion device and then both insertion devices are operated individually, a series of continuous operations can be efficiently performed without interruption. Therefore, high convenience can be obtained.

A perspective view of a main part showing a state in which the parent endoscope and the child endoscope according to the first embodiment are gripped. Same, side view of the main part of the child endoscope Same, rear view of the main part of the child endoscope The same, plan view of the child endoscope A perspective view of a main part showing a state in which the parent endoscope and the child endoscope according to the second embodiment are gripped. Same, side view of the main part of the child endoscope Same, rear view of the main part of the child endoscope The same, side view of the main part corresponding to FIG. 6 by the modified example A perspective view of a main part showing a state in which the parent endoscope and the child endoscope according to the third embodiment are gripped. Same, side view of the main part of the child endoscope Same, rear view of the main part of the child endoscope

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[First Embodiment]
1 to 4 show a first embodiment of the present invention. The insertion device 1 shown in the figure is used, for example, as a child endoscope of a parent-child endoscope system, and in the following, the insertion device 1 will be referred to as a child endoscope 1 and will be described below.

Further, this parent-child endoscope system includes a parent endoscope 11 as another insertion device. The parent endoscope 11 has the same configuration as a normal endoscope, an operation unit 13 is provided on the base end side of the insertion unit 12, and a treatment tool insertion channel is provided in the insertion unit 12. It is formed. The treatment tool insertion channel has a base end side opened in a treatment tool insertion port 14 provided in the lower part of the operation portion 13, and a tip end side opened in the tip end of the insertion portion 12.

On the other hand, the child endoscope 1 has an insertion portion 2 that can be inserted from the treatment tool insertion port 14 in the treatment tool insertion channel of the parent endoscope 11, and an operation unit 3 is continuously provided at the base end of the insertion portion 2. Has been done. The operation portion 3 has a longitudinal shaft 3a, and an operation knob 4 capable of inserting the insertion portion 2 into the body cavity is provided on the upper side surface of the longitudinal shaft 3a. That is, the operation knob 4 bends a curved portion (not shown) provided on the tip end side of the insertion portion 2, and by bending the curved portion, the insertion portion 2 enters the body cavity. .. The operation knob 4 is an example, and an operation lever or a joystick may be used instead of the operation knob 4.

Further, on one side of the longitudinal axis 3a, a treatment tool insertion port 5 communicating with the treatment tool insertion channel of the child endoscope 1 is opened.

The child endoscope 1 of the present embodiment is designed so that the operator (operator) grips the operation unit 3 with the left hand, and the operation knob 4 is operated with the thumb of the left hand or the right hand that grips the operation unit 3. Further, the parent endoscope 11 also has a specification in which the operation unit 13 is gripped by the left hand in the present embodiment.

The grip portion 6 is formed so as to project laterally from the longitudinal shaft 3a provided in the operation portion 3 of the child endoscope 1. The grip portion 6 has an elongated plate thickness along the axial direction of the longitudinal axis 3a, and a contact surface 7 capable of contacting the side surface of the operation portion 13 of the parent endoscope 11 is formed at the end portion in the protruding direction thereof. Has been done. Further, a hook portion 8 is formed between the contact surface 7 of the grip portion 6 and the longitudinal shaft 3a. The hooking portion 8 is hooked by the operator (operator) on the finger of the left hand that grips the operating portion 13 of the parent endoscope 11 and gripped together with the parent endoscope 11, whereby the child endoscope 1 Is held together with the parent endoscope 11.

The grip portion 6 is formed in a lateral T-shape with the contact surface 7 side as the head from the hook portion 8 to the contact surface 7. The T-shape has a shape including a head and legs extending from the center orthogonal to the head, and the hook portion 8 corresponds to a sideways T-shaped leg. The hook portion 8 forms a first hook portion 8a forming one side (upper side in FIG. 2) of the longitudinal shaft 3a in the axial direction and the other side (lower side in FIG. 2) of the longitudinal shaft 3a in the axial direction. It is composed of a second hooking portion 8b.

The first hook portion 8a extends in a curved shape from one end (upper end in FIG. 2) of the longitudinal axis 3a on the contact surface 7 in the axial direction toward the operation portion 3, and the second hook portion 8b extends in the longitudinal direction on the contact surface 7. It is formed so as to extend in a curved shape from the other end (lower end in FIG. 2) of the shaft 3a in the axial direction toward the operation unit 3. The distance between the first and second hook portions 8a and 8b is formed to be shorter than the length of the contact surface 7 in the axial direction of the longitudinal axis 3a. The first and second hooking portions 8a and 8b may be held by being sandwiched between the index finger and the middle finger.

As shown in FIG. 1, the first and second hooking portions 8a and 8b are held by being sandwiched between the middle finger (third finger) and the ring finger (fourth finger) of the left hand of the operator (operator). is there. Therefore, it is preferable to set the distance between the portions where the first and second hooking portions 8a and 8b are held by both fingers so as to be easy to hold within the range where the strength is guaranteed.

Further, the first and second hooking portions 8a and 8b are formed on the inner surfaces of the first and second contact portions 9a and 9b. The first contact portion 9a extends one side (upper in FIG. 2) along the longitudinal axis 3a with respect to the first hook portion 8a. On the other hand, the second contact portion 9b extends from the second hook portion 8b to the other (lower side in FIG. 2) along the longitudinal axis 3a. The two contact portions 9a and 9b have a substantially line-symmetrical shape and are integrated, and a contact surface 7 is formed on the tip surface thereof.

Further, the contact surface 7 has a resistance member 10. The resistance member 10 generates frictional resistance when the contact surface 7 is brought into contact with the operation unit 13 of the parent endoscope 11, and is made of a material containing an elastomer (various rubbers) as a main component. There is. The resistance member 10 may be made of a material other than an elastomer, such as silicone rubber or polyurethane, or may be a gel-like adhesive material. Alternatively, the surface of the contact surface 7 may be processed into a fine uneven shape, which may be used as the resistance member 10.

By the way, the grip portion 6 is located at a position where the operator (operator) can easily operate the operation knob 4 with the right hand when the operator (operator) grips the grip portion 6 together with the operation portion 13 of the parent endoscope 11, that is, FIG. In the plan view shown in the above, the grip portion 6 is formed at a position opened by a set angle θ in the clockwise direction with respect to the rotation center of the operation knob 4. Incidentally, in the present embodiment, this setting angle θ is set in the range of 130 to 160 [deg], but is not limited to this.

Next, the operation of the present embodiment by such a configuration will be described. For example, when an operator (operator) observes the bile duct or pancreatic duct using a parent-child endoscope system, first, the operation unit 13 of the parent endoscope 11 is grasped with the left hand, and an operation knob (not shown) is pressed. By operating, the curved portion provided on the tip side of the insertion portion 12 is curved in a predetermined manner, and the tip of the insertion portion 12 is guided to the vicinity of the duodenal papilla.

Next, another operator (operator) inserts the insertion portion 2 of the child endoscope 1 into the treatment tool insertion port 14 provided in the operation portion 12 of the parent endoscope 11, and a treatment tool insertion channel (not shown). The inside is inserted so that the tip of the insertion portion 2 protrudes from the tip of the parent endoscope 11. When the parent endoscope 11 is a side-viewing endoscope, the tip of the insertion portion 2 of the child endoscope 1 is placed along the treatment tool raising table provided in the insertion portion 12 of the parent endoscope 11. It is guided obliquely upward from the tip of the insertion portion 12 and inserted into the bile duct or pancreatic duct.

After that, when the operator operating the parent endoscope 11 wants to bundle the parent endoscope 11 and the child endoscope 1 and operate them collectively, first, the operation of the parent endoscope 11 is performed. While holding the portion 13 with the left hand, open the middle finger and the ring finger. Next, the middle finger and the ring finger are hooked on the first hook portion 8a and the second hook portion 8b of the grip portion 6 formed on the operation portion 13 of the child endoscope 1 to receive the child endoscope 1.

Then, after adjusting the position of the child endoscope 1 to a position that is easy for the operator (operator) to operate, the first contact portion 9a and the second contact portion formed on the grip portion 6 with the middle finger and the ring finger are used. 9b and 9b are gripped together with the operation unit 13 of the parent endoscope 11. At the same time, the middle finger and the ring finger sandwich the hooking portions 8 between the first and second hooking portions 8a and 8b, that is, the hooking portions 8.

Then, the contact surface 7 of the grip portion 6 is pressed against the operation portion 13 of the parent endoscope 11, and the position of the child endoscope 1 is fixed. Further, by sandwiching the hook portion 8 between the middle finger and the ring finger, the wobbling of the child endoscope 1 is prevented. In this state, the operator (operator) can acquire a desired image in the bile duct or pancreatic duct by operating the insertion portion 2 or the operation knob 4 of the child endoscope 1 with the right hand.

Since the operator (operator) can operate the child endoscope 1 and the parent endoscope 11 all at once without bundling them with a strap or the like, he grasps the parent endoscope. The child endoscope can be operated as it is. As a result, not only high convenience can be obtained, but also a decrease in operation efficiency due to interruption of the operation of the parent endoscope 11 can be reduced.

When the operation with the parent endoscope 11 and the child endoscope 1 bundled is completed, the operator (operator) holds the middle finger and ring finger of the left hand being gripped from the grip portion 6. By separating the child endoscope 1 from the parent endoscope 11, the child endoscope 1 can be immediately separated from the parent endoscope 11. As a result, the operator (operator) can smoothly shift to the operation using only the parent endoscope 11, and in this case as well, the decrease in operation efficiency due to the interruption of the endoscope operation is reduced, which is highly convenient. You can get sex.

Further, since the dimension of the hook portion 8 in the longitudinal axis 3a direction is set to be relatively short, the finger can be placed at a position desired by the operator (operator) in the grip portion of the parent endoscope 11. It can contribute to the improvement of gripping property of the parent endoscope 11 and the child endoscope 1.

[Second Embodiment]
5 and 8 show a second embodiment of the present invention. In the grip portion 6 of the first embodiment described above, the portion where the first hook 8a and the first contact portion 9a are formed is formed in a U shape with the upper side open in FIG. In the grip portion 21 of the above, the portion is formed in an annular shape. The same components as those in the first embodiment are designated by the same reference numerals to simplify the description.

As shown in FIGS. 5 to 7, the grip portion 21 of the present embodiment is provided at the same position as the grip portion 6 of the first embodiment. The ring portion 21a is formed on the side closer to the upper surface of the operation portion 3 than the contact surface 7 formed at the end portion of the grip portion 21 in the protruding direction. The ring portion 21a includes a first ring portion 21a1 extending from one end (upper end in FIG. 6) of the longitudinal shaft 3a on the contact surface 7 in the axial direction toward the operation portion 3, and a longitudinal shaft 3a on the contact surface 7. A second ring portion 21a2 extending from the other end in the axial direction (lower end in FIG. 6) toward the operation portion 3 is formed.

The middle finger (or index finger) of the left hand of the operator (operator) is inserted through the ring portion 21a. Therefore, the ring portion 21a has a hole diameter through which the index finger and the middle finger of the left hand can be inserted with a margin. In this embodiment, as shown in FIG. 5, a mode in which the middle finger is inserted through the ring portion 21a will be described.

Further, the finger arranging portion 21b is provided at a position closer to the insertion portion 2 than the contact surface 7 of the grip portion 21 and adjacent to the finger ring portion 21a. The finger arranging portion 21b is formed in a semicircular shape that opens in the direction of the insertion portion 2, and as shown in FIG. 5, the ring finger (fourth finger) of the operator (operator) is attached.

A first hook portion 8a and a second hook portion 8b are set on the inner surface of a portion where the finger ring portion 21a and the finger arrangement portion 21b are close to each other, and the first hook portion 8a and the second hook portion 8b are used. The hook portion 8 is formed.

In such a configuration, when the operator (operator) intends to grip the child endoscope 1 while holding the operation portion 13 of the parent endoscope 11 with his left hand, the same as in the first embodiment. , The middle finger and the ring finger are opened, the middle finger is inserted into the ring portion 21a of the grip portion 21 projecting from the operation portion 13 of the child endoscope 1, and the ring finger is attached to the finger arranging portion 21b. Then, the position of the child endoscope 1 is adjusted to a position that is easy for the operator (operator) to operate, and then the ring portion 21a and the finger arrangement portion 21b are moved by the middle finger and the ring finger to the parent endoscope 11. It is gripped together with the operation unit 13. At the same time, the hook portion 8 is sandwiched between the middle finger and the ring finger.

Then, the contact surface 7 of the grip portion 21 is pressed against the operation portion 13 of the parent endoscope 11, and the position of the child endoscope 1 is fixed. Further, by sandwiching the hook portion 8 between the middle finger and the ring finger, the wobbling of the child endoscope 1 is prevented. Further, when the operation portion 3 of the child endoscope 1 is pulled toward the insertion portion 2 and intends to rotate in the clockwise direction of FIG. 6 around the ring portion 21a, the ring finger is used to move closer to the operation portion 13. By supporting the finger arranging portion 21b of the above, the rotation of the operating portion 3 can be prevented.

Further, since the middle finger is inserted through the ring portion 21a, the child endoscope 1 is always supported by the middle finger even when the gripping force between the middle finger and the ring finger is loosened and the child is gripped again. It is possible to prevent the mirror 1 from falling off.

By the way, as shown in FIG. 5, in a shape in which the upper outer circumference of the ring portion 21a of the grip portion 21 is curved, when an external force is applied to the child endoscope 1, the operation portion 3 is centered on the vicinity of the ring portion 21a. , That is, the lower end of the operation unit 3 tends to rotate in the counterclockwise direction in the figure, that is, in the direction away from the parent endoscope 11. In such a case, the first extending portion 21c as shown by the alternate long and short dash line in FIG. 6 is extended to the upper end portion which is one end of the contact surface 7 of the grip portion 21 along the direction of the longitudinal axis 3a. Form in the state. As a result, it is possible to regulate the rotation in the counterclockwise direction shown in FIG. 6 when the contact surface 7 is pressed against the operation unit 13 of the parent endoscope 11.

In this case, the portion formed at a position substantially line-symmetrical with respect to the first extending portion 21c with the center line of the ring portion 21a orthogonal to the contact portion 7 interposed therebetween may be referred to as the second extending portion 21d. it can. That is, it can be said that the second extending portion 21d is formed in a state of extending along the direction of the longitudinal axis 3a at the lower end portion which is the other end of the contact surface 7.

Further, FIG. 8 shows a modified example of the present embodiment. In this modification, the second hooking portion 8b is formed by extending in the direction of the operating portion 3 from the lower end portion which is the other end of the contact surface 7 shown in FIG. 6, and the second hooking portion 8b is about 1/4. It is continuous with the finger arranging portion 21b formed in the arc shape of.

In this modification, the grip portion 21 is formed in a D shape by the flat contact portion 7 and the ring portion 21a having a curvature. By forming the grip portion 21 in a D shape, the child endoscope 1 is gripped together with the parent endoscope 11 only by the middle finger passed through the ring portion 21a. However, since the ring finger can be arbitrarily moved from the lower end side of the contact portion 7 to the finger arrangement portion 21b formed in an arc shape via the second hook portion 8b, the position of the ring finger is preferred by the operator (operator). Can be set according to.

[Third Embodiment]
9 to 11 show a third embodiment of the present invention. The grip portion 31 according to the present embodiment is formed in a U-shape in the opposite direction. The same components as those in the first embodiment are designated by the same reference numerals to simplify the description.

That is, the grip portion 31 is applied in place of the grip portion 6 of the first embodiment, and is provided at the same position as the grip portion 6. The hooking portion 8 is formed so as to extend toward the operating portion 3 from the upper part of FIG. 10, which is one end of the contact surface 7 formed at the protruding end of the grip portion 31 on the side separated from the inserting portion 2. There is. Further, the grip portion 31 is formed with a notch portion 31a in which the lower portion of FIG. 10, which is the other end of the contact surface 7 on the side close to the insertion portion 2, is notched.

The hook portion 8 has a first hook portion 8a on the outer surface side and a second hook portion 8b on the inner surface side, and the second hook portion 8b is formed in an arch shape curved upward in FIG. The inner circumference of the grip portion 31 is formed in a U-shape in the opposite direction.

In such a configuration, when the operator (operator) is holding the operation unit 13 of the parent endoscope 11 with his left hand and intends to hold the child endoscope 1 as well, he / she opens the index finger to operate. The contact surface 7 of the gripping portion 31 is inserted between the portion 13 and the middle finger and the ring finger (fourth finger) for gripping. Further, the index finger and the middle finger sandwich the first hook portion 8a and the second hook portion 8b of the hook portion 8 formed on the upper portion of the grip portion 31 (see FIG. 9). In this case, the contact surface 7 of the grip portion 31 can be gripped with the little finger in addition to the middle finger and ring finger.

Then, the contact surface 7 of the grip portion 31 is pressed against the operation portion 13 of the parent endoscope 11, and the position of the child endoscope 1 is fixed. At that time, since the contact surface 7 is pressed against the operation unit 13 by two fingers, the middle finger and the ring finger, it is possible to prevent the child endoscope 1 from wobbling.

By the way, as shown in FIG. 9, since the hooking portion 8 of the gripping portion 31 has a curved connection portion with the contact surface 7, even when the contact surface 7 is gripped by the middle finger and the ring finger, the figure is shown. It is easy to rotate in the counterclockwise direction, that is, in the direction in which the lower end of the operation unit 3 is separated from the parent endoscope 11. In such a case, the first extending portion 31b as shown by the alternate long and short dash line in FIG. 10 is formed at the upper end portion which is one end of the contact surface 7 in a state of extending along the direction of the longitudinal axis 3a. .. As a result, it is possible to regulate the rotation in the counterclockwise direction shown in FIG. 10 when the contact surface 7 is pressed against the operation unit 13 of the parent endoscope 11.

The present invention is not limited to the above-described embodiments, and for example, the grip portions 6, 21 and 31 may be fixed to the operation portion 3 afterwards. As a result, only the grip portions 6, 21 and 31 can be exchanged with respect to the operation portion 3 of the child endoscope 1. Therefore, the grip portions 6, 21 and according to the preference of the operator (operator), 31 can be selected.

1 ... Child endoscope (insertion device),
2 ... Insertion part,
3 ... Operation unit,
3a ... Longitudinal axis,
4 ... Operation knob,
5 ... Treatment tool insertion port,
6, 21, 31 ... Grip part,
7 ... contact surface,
8 ... Hook part,
8a ... 1st hook,
8b ... 2nd hook,
9a ... 1st contact part,
9b ... Second contact part,
10 ... Resistance member,
11 ... Parent endoscope,
12 ... Insertion part,
13 ... Operation unit,
14 ... Treatment tool insertion port,
21a ... Ring part,
21a1 ... First ring part,
21a2 ... Second ring part,
21b ... Finger placement part,
21c, 31b ... 1st extension,
21d ... 2nd extension,
31a ... Notch,
θ… Set angle

Claims (13)

An insertion device that can be inserted into a channel provided in another insertion device.
An operation unit that has a longitudinal axis and can be inserted
A grip portion that is formed so as to protrude from the operation portion, has a contact surface that can contact the other insertion device, and can be gripped together with the other insertion device.
A hooking portion provided on the grip portion, formed in a dimension shorter than the contact surface in the longitudinal axis direction, and on which a finger for gripping the grip portion can be hooked.
An insertion device comprising. The hooking portion is
A first hook portion forming one side in the longitudinal axis direction and
A second hook portion forming the other side in the longitudinal direction and
The insertion device according to claim 1, wherein the insertion device has. The grip portion
A first contact portion having the contact surface and forming one side in the longitudinal axis direction with respect to the hook portion.
A second contact portion having the contact surface and forming the other side in the longitudinal axis direction from the hook portion,
The insertion device according to claim 1, wherein the insertion device has. The insertion device according to claim 3, wherein the grip portion is formed in a T shape. The hooking portion is
A first ring portion extending from one end in the longitudinal axis direction on the contact surface toward the operation portion, and a first ring portion.
A second ring portion extending from the other end in the longitudinal axis direction on the contact surface toward the operation portion, and a second ring portion.
The insertion device according to claim 1, wherein the insertion device has. It is further provided with an insertion portion that is connected to the operation portion and can be inserted into the channel.
The insertion device according to claim 5, wherein the grip portion has a finger arranging portion on which a finger for gripping the grip portion can be arranged on a side closer to the insertion portion than the contact surface. The insertion device according to claim 5, wherein the grip portion is formed in a D shape. It is further provided with an insertion portion that is connected to the operation portion and can be inserted into the channel.
The hook portion is formed so as to extend from one end of the contact surface on the side away from the insertion portion toward the operation portion.
The insertion device according to claim 1, wherein the grip portion has a notch portion formed by notching at the other end of the contact surface on the side close to the insertion portion. The insertion device according to claim 8, wherein the grip portion is formed in a U shape. The insertion device according to claim 5 or 8, wherein the grip portion has a first extending portion extending from one end of the contact surface along the longitudinal axis direction. The insertion device according to claim 5, wherein the grip portion has a second extending portion extending from the other end of the contact surface along the longitudinal axis direction. The insertion device according to claim 1, wherein the contact surface has a resistance member that generates frictional resistance with respect to the other insertion device. The insertion device according to claim 12, wherein the resistance member contains an elastomer as a main component.

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