Treatment accessories for endoscope
First Claim
1. A treatment accessory in combination with an endoscope, said endoscope including a forceps channel having an inlet and an outlet separated by a predetermined distance, said treatment accessory being inserted in or removed from said forceps channel of said endoscope through an inlet of said forceps channel, said treatment accessory comprising:
- a treatment device; and
a flexible shaft, said treatment device being provided at a first end of said flexible shaft, said flexible shaft being provided with a marking at a predetermined portion thereof, said predetermined portion being located such that the distance between said marking and the distal end of said treatment device is less than the predetermined distance between said inlet and said outlet of said forceps channel by 1 to 20 cm, said treatment device being located at a predetermined position inside said forceps channel when said marking is located at said inlet of said forceps channel.
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Accused Products
Abstract
The treatment accessory for an endoscope is inserted in or removed from a forceps channel of the endoscope through an inlet of the forceps channel. The treatment accessory includes a treatment device and a flexible shaft. The treatment device is provided at a first end of the flexible shaft. The flexible shaft is provided with a marking at a predetermined portion thereof. The treatment device is located at a predetermined position inside the forceps channel when a predetermined portion of the marking is located at the inlet of the forceps channel.
100 Citations
37 Claims
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1. A treatment accessory in combination with an endoscope, said endoscope including a forceps channel having an inlet and an outlet separated by a predetermined distance, said treatment accessory being inserted in or removed from said forceps channel of said endoscope through an inlet of said forceps channel, said treatment accessory comprising:
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a treatment device; and a flexible shaft, said treatment device being provided at a first end of said flexible shaft, said flexible shaft being provided with a marking at a predetermined portion thereof, said predetermined portion being located such that the distance between said marking and the distal end of said treatment device is less than the predetermined distance between said inlet and said outlet of said forceps channel by 1 to 20 cm, said treatment device being located at a predetermined position inside said forceps channel when said marking is located at said inlet of said forceps channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 28, 29, 30, 31, 32)
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- 16. A treatment accessory in combination with an endoscope, said endoscope including a forceps channel having an inlet and an outlet separated by a predetermined distance, said treatment accessory being inserted in said forceps channel of said endoscope, said treatment accessory having a shaft and a treatment device provided at a distal end of said shaft, said treatment device being extended from a distal end of said forceps channel when treatment is performed, said shaft being provided with a marking at a position such that the distance between said marking and the distal end of said treatment device is less than the predetermined distance between said inlet and said outlet of said forceps channel by 1 to 20 cm, said marking being located at said inlet of said forceps channel when said treatment device is located at a position close to said distal end of said forceps channel and inside said forceps channel.
- 20. A treatment accessory in combination with endoscopes having forceps channels of different lengths, said treatment accessory being inserted in a selected one of said forceps channels of said endoscopes, said treatment accessory having a shaft, and a treatment device provided at a distal end of said shaft, said treatment device being extended from a distal end of each of said forceps channels when treatment is performed, said shaft being provided with a plurality of markings, each of said plurality of markings being located at an inlet of a respective one of said forceps channels when said treatment device is located at a position close to said distal end of a respective one of said forceps channels and inside said forceps channel.
- 23. A treatment accessory in combination with an endoscope, said treatment accessory having a shaft which is to be inserted in and removed from a forceps channel of said endoscope, a treatment device being provided at a distal end of said shaft, said shaft being provided with a marking, said marking appearing from an end of said forceps channel when said shaft is being withdrawn from said forceps channel and when a length of said treatment accessory remaining in said forceps channel is within a range of 10 cm through 30 cm.
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33. A treatment accessory in combination with an endoscope, said treatment accessory being provided with a shaft to be inserted in or withdrawn from a forceps channel of said endoscope, said shaft being provided with a slidable member fitted thereon, said slidable member, when contacting an inlet of said forceps channel, applies a predetermined resistance to said shaft when said shaft is being inserted in said forceps channel, wherein said slidable member is formed to have a cylindrical shape and wherein said slidable member is further provided with a flange portion which has a greater diameter than the inner diameter of the inlet of the forceps channel.
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34. A treatment accessory in combination with an endoscope, said treatment accessory being provided with a shaft to be inserted in or withdrawn from a forceps channel of said endoscope, said shaft being provided with a slidable member fitted thereon, said slidable member, when contacting an inlet of said forceps channel, applies a predetermined resistance to said shaft when said shaft is being inserted in said forceps channel, wherein said slidable member is formed to have substantially a cylindrical shape, a diameter of an end portion of said cylindrical shape being smaller than a diameter of a central portion of said cylindrical shape.
Specification