JP2733918B2 - Rigid endoscope device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rigid endoscope device for observing the inside of a body cavity by inserting an insertion rigid portion on the distal end side of the body into a body cavity via a trocar mantle tube.

[0002]

2. Description of the Related Art Generally, an endoscope is provided, as shown in FIG. 3, for example, with an operation section 100 provided with buttons and the like operated by an operator while holding it by hand, and connected to the operation section 100. In the case of an electronic endoscope in which a flexible light source 101 to be inserted into a body cavity or the like and a necessary light source are connected via a connector 102, and a solid-state image sensor is arranged at the tip of the light source, an imaging signal is used. A connection unit 103 for connecting an external device such as a processing unit and an external device (not shown) such as a camera or a VTR. In addition, this endoscope generally has a connecting portion 103
Is attached in a state of being pulled out from the operation unit 100 in a substantially right side direction.

[0003]

In such an endoscope, for convenience of operation, for example, from the relation of the position with the subject,
The operation unit of the endoscope main body may be rotated around the axial direction. In such a case, the connection unit is also rotated together with the operation unit. As a result, the external device connected to the connecting part may be moved, or the connecting part may hit the patient or practitioner. There is a possibility that this may be the cause. By the way, in such an endoscope, in order to easily perform troublesome sterilization and disinfection work, a sheath is inserted and inserted as a cover of the endoscope.
It has been studied to attach it, but it has not been put to practical use especially because a button or the like protruding from the operation unit is in the way. In view of the above-mentioned conventional disadvantages, the present invention can cover the sheath smoothly,
Moreover, it is an object of the present invention to provide a rigid endoscope apparatus in which operation buttons can be operated from above the sheath.

[0004]

That is, a rigid endoscope apparatus according to the present invention comprises an insertion rigid portion provided on the distal end side of a main body which is inserted into a body cavity through a trocar mantle tube, and is connected to the rigid insertion portion. A rigid endoscope device comprising: an operating unit provided; and a connecting unit for connecting to an external device, wherein a rigid endoscope device is fitted and fitted with a sheath comprising a hard sheath portion and a soft sheath portion, wherein the operating portion is a ball. Alternatively, the operating portion, the insertion rigid portion, and the connecting portion are formed substantially in a straight line, and the operation button for operating the external device or the like does not protrude from the outer peripheral surface of the operating portion main body. A rigid sheath portion having a smooth inner and outer surface is fitted to the insertion rigid portion, a soft sheath portion is attached to the operating portion, and the operation button inside from the outside of the soft sheath portion is operated. It is what was constituted.

[0005]

According to the rigid endoscope apparatus of the present invention, the operation section is formed in a streamline shape with no corners, and the operation buttons are provided so as not to protrude from the outer peripheral surface of the operation section. Even if the operation button is provided, the soft sheath can be smoothly attached, and the operation of the operation button can be reliably performed from above the soft sheath. Further, in the present invention, the connecting portion is extended in a state where the connecting portion extends substantially linearly in the axial direction from the operating portion, not in the vertical direction lateral to the operating portion, and thereby the operating portion is moved in the axial direction. Even when rotated along, the connecting portion and the external device connected to the connecting portion do not move, and the handling operation becomes easy.

[0006]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a rigid endoscope device according to the present invention. The rigid endoscope device is inserted through a trocar mantle tube 9 (see FIG. 2) to perform observation and treatment in a body cavity. A rigid endoscope 1 in which an insertion rigid part 1, an operating part 2, and a connecting part 3 are formed on substantially the same axis.
0 and a sheath 8 composed of a rigid sheath portion 6 and a soft sheath portion 7 to be inserted and attached to the rigid endoscope 10. The insertion rigid portion 1 is inserted through the trocar mantle tube 9 to insert the tip into a body cavity such as the abdomen, and observes a desired portion in the body cavity. The insertion rigid portion 1 is formed of metal and has a smooth outer peripheral surface. It is mirror finished. Further, the rigid insertion portion 1 is adapted to be fitted with the rigid sheath portion 6 from the distal end, so that only the sheath can be sterilized and disinfected when reused. In other words, the insertion rigid portion is inserted into the insertion rigid portion. It eliminates the need for troublesome operations such as washing away adhered blood and the like and immersing in high-temperature sterilization or a disinfecting solution.

The operation unit 2 performs various operations as needed, for example, photographing, air supply, water supply, etc. of the affected part by pressing a finger while holding it with a hand. Are provided so as to coincide with the central axis of the insertion rigid portion 1. Further, a flexible sheath portion 7 which can be extended and contracted is attached to the operation portion 2 in a watertight state. When the finger portion is pressed from above the soft sheath portion 7 without applying a great force, it is directly turned on / off. The operation buttons 4A and 4B are mounted in a state in which the operation buttons 4A and 4B do not protrude from the outer peripheral surface of the operation unit 2, that is, in the recess 2A in which a part of the outer peripheral surface is depressed. The shape of the operation section 2 is not particularly limited to this, but may be any streamline shape to which the soft sheath section 7 can be easily attached, and it is not necessary to provide a sharp projection. The connecting pipe 3 is connected to the operating section 2 in a straight line, that is, with the central axis of the insertion section 1 substantially aligned with the axis, and connected to an external device (not shown) via the connector 5. ing. The connecting pipe is not particularly limited to a pipe precisely aligned with the operation unit, but may have a slightly shifted axial direction.

The hard sheath portion 6 is formed in a bottomed cylindrical shape having a fitting hole 6C at one end using a hard material that is not likely to be damaged by a blade provided on the outer tube, for example, a metal material such as stainless steel. ing. The inner peripheral surface and the outer peripheral surface of the rigid sheath portion 6 are smooth so that the insertion rigid portion 1 and the mantle tube 9 of the endoscope can be inserted smoothly, and between them, an airtight structure and a watertight structure are provided. Mirror finish is applied. The rigid sheath portion 6 of this embodiment is formed such that the center axis of the fitting hole 6C is deviated from the axis of the insertion rigid portion 1. A passage such as an air supply / water supply passage and a forceps passage (both not shown) is formed along the central axis near the maximum thickness portion in the rigid sheath portion 6. In addition,
At the distal end of the rigid sheath portion 1 facing the distal end surface of the insertion rigid portion 1 of the endoscope, various windows 6A such as an observation window, an illumination light window, a water supply nozzle for cleaning the observation window, a forceps port, and the like are provided. Is provided. The soft sheath portion 7 is detachably attached to the vicinity of the open end of the hard sheath portion 6 while maintaining a watertight state and an airtight state, and is attached to the operation section 2. The flexible sheath 7 is formed of a material such as an elastomer in the form of a stretchable thin film, and a switch 4 provided on the operation unit 2 from outside the flexible sheath 7.
A and 4B can be freely pressed. In addition, the soft sheath portion 7 is designed to be stretched from a roll-shaped wrapped state and applied by being spread when used, but after use, the soft sheath portion 7 is removed from the hard sheath portion 6 and discarded. It is not used.

Therefore, according to this embodiment, the soft sheath portion 7 can be smoothly and tightly attached to the spherical operation portion 2. Also, according to this embodiment,
Since the operation buttons 4A and 4B are provided one step lower than the operation unit outer surface level, the operation unit 2
, There is no risk of malfunction due to touching the operation buttons 4A and 4B.

[0010]

As described above, according to the rigid endoscope apparatus of the present invention, the connecting portion does not protrude laterally, that is, in the vertical direction from the conventional operating portion. While extending the connecting part substantially linearly from
Since the operation button is provided so as not to protrude from the outer peripheral surface of the operation unit, especially the soft sheath portion can be smoothly inserted and attached,
The operation button can be operated from above the flexible sheath portion. Further, according to the present invention, even if the operation unit is rotated along the axial direction, the operability is improved because there is no possibility that the connecting unit or the external device connected thereto is moved. Can be concentrated on the observation and treatment of the patient, and can be provided with high reliability.

[Brief description of the drawings]

FIG. 1 is a schematic cutaway view showing a rigid endoscope apparatus according to the present invention.

FIG. 2 is an enlarged cutaway view of a main part showing an example of use of the rigid endoscope apparatus shown in FIG.

FIG. 3 is a perspective view showing a conventional endoscope.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insertion part 2 Operation part 3 Connecting part 6 Hard sheath part 7 Soft sheath part

Claims (1)

(57) [Claims] 1. A rigid insertion part provided on the distal end side of a main body to be inserted into a body cavity through a trocar mantle tube, an operation part provided in connection with the rigid insertion part, and a coupling part for coupling with an external device. A rigid endoscope device in which a sheath comprising a hard sheath portion and a soft sheath portion is fitted and adhered, wherein the operation portion is formed in a streamline shape, and the operation portion, the insertion hard portion and The connecting portion is formed substantially in a straight line, and an operation button for operating the external device or the like is provided so as not to protrude from the outer peripheral surface of the operation portion main body. A rigid endoscope device, wherein a soft sheath portion is attached to the operation portion, and the operation button inside the soft sheath portion is operated from outside.