SYSTEMS, DEVICES AND METHODS FOR ADVANCING MEDICAL INSTRUMENTS THROUGH A WORKING CHANNEL
20220125282 · 2022-04-28
Inventors
Cpc classification
A61B1/00133
HUMAN NECESSITIES
A61M25/0113
HUMAN NECESSITIES
International classification
A61B1/00
HUMAN NECESSITIES
Abstract
Systems, devices and methods may include a device for feeding an endoscopy operating instrument into an endoscope. The device may include a housing coupled to a proximal end of the endoscope. The device may include a mechanism to advance the medical instrument in a rotational manner through the housing. The device may include a member forming an internal working channel and having an entry port, exit port, feeding system, and coupling structure.
Claims
1. A device for advancing a medical instrument through an endoscope, comprising: a housing configured to be coupled to a proximal end of said endoscope; and a mechanism in said housing configured to advance said medical instrument in a rotational manner through said housing and into said endoscope.
2. The device of claim 1, wherein said housing forms a working channel passing through said housing, and wherein said working channel is configured to extend between an inlet and an outlet.
3. The device of claim 2, wherein said mechanism in said housing is configured to advance the medical instrument in a rotational manner comprises a pair of rotatable pins coupled to said housing and configured to propel the medical instrument through said working channel.
4. The device of claim 3, wherein said pair of rotatable pins are offset.
5. The device of claim 2, wherein said working channel comprises a helical shape.
6. A device for feeding an endoscopy operating instrument into an endoscope, comprising: a member forming an internal working channel, said internal working channel configured to surround a portion of said endoscopy operating instrument, and said member further comprising: an input structure positioned at an anterior end of said member; an entry port formed by said input structure, said entry port providing access to a first end of said internal working channel; an exit port disposed on a posterior end of said member, said exit port providing access to a second end of said internal working channel; a feeding system mechanically coupled to said member, said feeding system configured to propel said endoscopy operating instrument through said internal working channel; and a coupling structure positioned at a posterior end of said member, said coupling structure configured to mechanically couple said member to said endoscope. wherein said internal working channel comprises a helical shape, and wherein said feeding system is further configured to propel said endoscopy operating instrument in a first direction from said anterior end of said member to said posterior end of said member, and alternately in a second direction from said posterior end of said member to said anterior end of said member.
7. The device of claim 6, wherein said internal working channel is configured to rotate said endoscopy operating instrument between 1 and 10 rotation(s) per 100 centimeters as said feeding system propels said endoscopy operating instrument through said internal working channel.
8. The device of claim 6, wherein said feeding system is configured to be in communication with a controller.
9. The device of claim 6, wherein said feeding system is a pair of parallel pins.
10. The device of claim 9, wherein said pair of parallel pins are offset from each other.
11. The device of claim 9, wherein said pair of parallel pins comprise a drive wheel, and an idle wheel.
12. The device of claim 9, wherein said pair of parallel pins are configured such that said endoscopy operating instrument passes between said pair of parallel pins when said device is in use.
13. The device of claim 9, wherein at least one of said pair of parallel pins is configured such that said at least one of said pair of parallel pins can be adjusted to be a predetermined distance from a second of said pair of parallel pins.
14. The device of claim 6, wherein said input structure comprises a funnel shape.
15. A system for feeding an endoscopy operating instrument into an endoscope, comprising: a controller; and a device for feeding said endoscopy operating instrument, said device comprising: a member forming and internal working channel, said internal working channel configured to surround a portion of said endoscopy operating instrument, and said member further comprising: an input structure positioned at an anterior end of said member; an entry port formed by said input structure, said entry port providing access to a first end of said internal working channel; an exit port disposed on a posterior end of said member, said exit port providing access to a second end of said internal working channel; a feeding system mechanically coupled to said member, said feeding system configured to propel said endoscopy operating instrument through said internal working channel; and a coupling structure positioned at a posterior end of said member, said coupling structure configured to mechanically couple said member to said endoscope, wherein said internal working channel comprises a helical shape, wherein said feeding system is configured to be in communication with a controller, and wherein said feeding system is further configured to propel said endoscopy operating instrument in a first direction from said anterior end of said member to said posterior end of said member, and alternately in a second direction from said posterior end of said member to said anterior end of said member.
16. The system of claim 15, wherein said controller is configured instruct said feeding system to propel said endoscopy operating instrument for at least one of a predetermined length of time, a predetermined distance, and a predetermined speed.
17. The system of claim 15, wherein said internal working channel is configured to rotate said endoscopy operating instrument between 1 and 10 rotation(s) per 100 centimeters as said feeding system propels said endoscopy operating instrument through said internal working channel.
18. The system of claim 15, wherein said feeding system is a pair of parallel pins.
19. The system of claim 18, wherein said pair of parallel pins are offset from each other.
20. The system of claim 18, wherein said pair of parallel pins comprise a drive wheel, and an idle wheel.
21. The system of claim 18, wherein said pair of parallel pins are configured such that said endoscopy operating instrument passes between said pair of parallel pins when said device is in use.
22. The system of claim 18, wherein at least one of said pair of parallel pins is configured such that said at least one of said pair of parallel pins can be adjusted to be a predetermined distance from a second of said pair of parallel pins.
23. The system of claim 15, wherein said input structure comprises a funnel shape.
24. A method of feeding an endoscopy operating instrument into an endoscope comprising: coupling the device of claim 1 to said endoscope; feeding said endoscopy operating instrument into the device of claim 1; and actuating the device of claim 1 such that said device of claim 1 advances said endoscopy operating instrument into said endoscope in a rotational manner.
25. A method of cleaning an endoscope, comprising: coupling the device of claim 1 to an endoscope; feeding a cleaning instrument into the device of claim 1; actuating the device of claim 1 such that said device of claim 1 advances said cleaning instrument into said endoscope in a rotational manner; and actuating the device of claim 1 such that said device of claim 1 pulls said cleaning instrument from said endoscope.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Further objectives and advantages will become apparent from a consideration of the description, drawings, and examples.
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DETAILED DESCRIPTION
[0042] Some embodiments of the current invention are discussed in detail below. In describing embodiments, specific terminology is employed for the sake of clarity. However, the invention is not intended to be limited to the specific terminology so selected. A person skilled in the relevant art will recognize that other equivalent components can be employed and other methods developed without departing from the broad concepts of the current invention. All references cited anywhere in this specification, including the Background and Detailed Description sections, are incorporated by reference as if each had been individually incorporated.
[0043] This disclosure is generally directed to an endoscopy procedure in which a body is examined internally using an endoscope. An insertion tube of the endoscope may be a long, flexible tube which is inserted into a patient during the endoscopy. During the endoscopy, endoscopy operating instrument(s) may be passed manually through the insertion tube of the endoscope. The placement and orientation of the endoscopy operating instrument with manual insertion may be challenging and causes the surgeon either rotate the entire endoscope to reorient the endoscopy operating instrument or pull the entire endoscope out of the patient and reinsert it such that the endoscopy operating instrument is reintroduced into the patient in the correct orientation. The devices, systems and methods described herein provide for a feeding and/or advancing mechanism for insertion into the endoscope and may further provide for the orientation and/or rotation of the endoscope operating instrument while positioned in the endoscope in the patient.
[0044] Following a procedure, when the endoscope has been removed from the patient, the endoscope insertion tube may be manually cleaned by a technician, which is labor-intensive and inefficient. During the cleaning procedure, the technician manually feeds a cleaning cable having a cleaning brush into the insertion tube and scrubs the interior of the insertion tube by moving the cleaning cable into and out from the insertion tube, which may be ineffective, inefficient and labor intensive. The devices, systems and method described herein provide for a feeding and/or advancing mechanism that may be used for this cleaning procedure.
[0045] As describe herein, a device, system and method is provided that facilitates insertion and/or orientation of an endoscopy operating instrument during an endoscopy, and that may be used for reliable cleaning of an endoscope following a procedure.
[0046] As used throughout, an “endoscope” refers to a tubular instrument which can be introduced into a subject to give a view of the subject's internal parts during an endoscopy. An “endoscopy” is a procedure where the inside of a body is examined using the endoscope. The endoscope may include a flexible insertion tube that may have a light source and/or a camera at one end. Images of the inside of the body are relayed to a display screen. The flexible insertion tube may be guided through (into) a body cavity via mechanisms controlled externally by a user. The flexible insertion tube can be inserted into the body through a natural opening, such as into the mouth and down the throat, or through the anal cavity. The flexible insertion tube can also be inserted through a small cut or incision made in the skin when keyhole surgery is being carried out. The endoscope contains an internal working channel that provides access to the flexible insertion tube. During an endoscopy, a surgical tool, or endoscopy operating instrument, is inserted into the working channel and through the flexible insertion tube.
[0047] The endoscopy can be used to investigate unusual symptoms, including but not limited to, difficulty swallowing (dysphagia), persistent abdominal pain, chest pain that is not caused by heart-related conditions, persistent nausea and vomiting, unexplained weight loss, vomiting blood, persistent diarrhea, and blood in stool. The endoscope can also help perform certain types of surgery, and/or remove a small sample of tissue for further analysis (e.g., a biopsy).
[0048] Examples of endoscopes are known to one of ordinary skill in the art, and are described, for example in U.S. Patent Application Publication 2018/0160885, published on Jun. 14, 2018, and which represents the instant inventor's own work. The entire contents of U.S. Patent Application Publication 2018/0160885 are hereby incorporated by reference. Specific examples may include, gastroscopes, colonoscopes, endoscopic retrograde cholangiopancreatography scopes, sigmoidoscopes, push-enteroscopes, and double-balloon endoscopes.
[0049] As used throughout, an “endoscopy operating instrument” is a medical device that is passed through an endoscope during an endoscopy and is used to perform a surgical procedure. Examples of such instruments are known to one of ordinary skill in the art, and include, biopsy forceps (cold and hot), snares (cold and hot), heated probes, argon plasma coagulation probes, needle injectors, clips, sphincterotome probes, needle knife probes, baskets and balloons.
[0050] Embodiments of the instant invention provide a disposable device that advances and rotates an endoscopy instrument through the working channel of the of an endoscope. Such a device eliminates the repetitive motions of feeding the endoscopy instruments manually, thereby reducing the duration of the procedures and reducing fatigue and injuries to an operator. In some such embodiments, the device is operated by a foot pedal. The device will advance the endoscopy instrument in pre-programed distance depending on the type of endoscope use. The rotating function of the device uniquely offers the operator an additional option of targeting endoscopic lesions. By rotating the endoscopy instrument through the device, the operator is be able to align the endoscopy instrument more precisely toward the targeted lesion.
[0051] Embodiments of the invention provide a disposable device for a method of rapidly and efficiently cleaning an endoscope. In such an embodiment, the device is operated by a foot pedal. A cleaning technician actuates the device by stepping on the foot pedal. The device will then propel and rotate a cleaning brush through the working channel of the endoscope, ensuring a higher level of cleanliness.
[0052] Embodiments of the instant invention provide a novel and non-obvious solution to the above-described problem. Specifically, embodiments of the invention relate to devices, systems, and methods for mechanically feeding the endoscopy operating instrument into the endoscope.
[0053] The instantly described devices, systems, and methods feed and/or advance a medical device and/or instrument using a rotational propulsion of the endoscopy operating instrument through the insertion tube of the endoscope, and to the target tissue. If the endoscopy operating instrument arrives at the target tissue in the incorrect orientation, a surgeon can simply, for example, pull the endoscope back and actuate the device to rotate the endoscopy operating instrument until it is oriented in the desired orientation. This allows the surgeon to reorient the endoscopy operating instrument without having to physically rotate the entire endoscope, or without having to remove the endoscope entirely and subsequently reintroduce it into the patient. As will be discussed in further detail below, the instantly described devices have a feeding system and a helical-shaped internal working channel which are configured to work in combination to advance the endoscopy operating instrument through the insertion tube of the endoscope and to the target tissue in a rotational manner.
[0054] Embodiments of the instant invention also provide a novel and non-obvious solution to the above-discussed problems associated with cleaning an endoscope following a procedure. Specifically, embodiments of the invention relate to devices, systems, and methods for mechanically feeding the endoscopy operating instrument into the endoscope. For example, a system according to an embodiment of the invention allows for a user to manipulate the rate at which the endoscopy operating instrument is fed into the insertion tube of the endoscope, and also allows for the direction of the propulsion of the endoscopy operating instrument to be manipulated (e.g. towards a distal end of the insertion tube, or towards a proximal end of the insertion tube).
[0055] The ability to manipulate the direction and rate of feeding into the insertion tube of the endoscope, combined with the rotational nature of the propulsion of the endoscopy operating instrument provide an unexpected solution to the problem of systematically and efficiently cleaning the insertion tube following use. To clean the insertion tube, a technician replaces the endoscopy operating instrument with a cleaning tool and uses the instantly disclosed device to feed the cleaning tool into the insertion tube. The technician then cleans the inside of the insertion tube by actuating the device to feed the cleaning tool into and out from the insertion tube. The rotation of the cleaning tool as it is fed into and out from the insertion tube results in cleaning of the insertion tube as the cleaning tool scrubs the walls of the working channel of the insertion tube. In addition, the technician can vary the rate at which the cleaning tool is fed into and out from the insertion tube, thus allowing for more, or less vigorous cleaning as desired. The method described above allows for systematic and efficient cleaning of the insertion tube.
[0056] Referring to the figures, an embodiment of a device 101 is shown in accordance with the principles of the invention.
[0057] The device 101 of
[0058] Referring to
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[0060] In
[0061] In
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[0063] Pins 115, 116 of device 101 of
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[0066] The controller 709 is configured to control the pin 115 such that it can instruct pin 115 to rotate in a first direction to propel the endoscopy operating instrument 103 towards the distal end 707 of insertion tube 705, or in a second direction to pull the endoscopy operating instrument 103 away from the distal end 707 of insertion tube 705 and back towards the device 101. As discussed above, the combination of the off-set pins 115, 116 and the helical configuration of the internal working channel 107 allow for the rotation of the endoscopy operating instrument 103 as it is propelled from the device 101 and through the insertion tube 705. The endoscopy operating instrument 103 continues to rotate once it exits through the distal end 707 of the insertion tube 705.
[0067] The controller 709 actuates pin 115. The controller actuates pin 115 to rotate in one of two directions and controls the rate of rotation and/or duration of rotation of pin 115. By controlling the rate of rotation and/or duration of rotation of pin 115, the controller regulates the speed at which the endoscopy operating instrument 103 is passed through the endoscope 701 and/or the distance endoscopy operating instrument 103 is passed through the endoscope 701 and out from the distal end of the insertion tube 705. Pin 116 is configured to passively rotate when pin 115 is active as the endoscopy operating instrument 103 passes between pins 115 and 116.
[0068] The controller 709 can be programmed to actuate pin 115 under the settings of a predetermined protocol. By way of non-limiting example, the predetermined protocol can contain parameters regarding the rate of rotation of pin 115, the direction of rotation of pin 115, and/or the duration of the rotation of pin 115. Such parameters facilitate use of the endoscopy operating instrument 103 during surgical procedures and facilitate cleaning of the insertion tube 705 following a surgical procedure.
[0069] For instance, during a surgical procedure, the insertion tube 705 of the endoscope 701 can be inserted into a patient to within a predetermined distance from a target tissue. Then, the controller 709 can be actuated to execute a first predetermined program instructing the feeding system 114 of the device 101 to propel the endoscopy operating instrument 103 for a predetermined period of time such that the endoscopy operating instrument 103 is passed through the device 101, through the insertion tube 705, and to the target tissue for execution of the surgical procedure. Once the surgical procedure is completed, the controller 709 can be actuated to execute a second predetermined program which instructs the feeding system 114 to pull the endoscopy operating instrument 103 from the target tissue, back through the insertion tube 705, and out from the device 101. The first and second predetermined programs are adjusted to account for the type of endoscope used for the procedure. For example, the predetermined programs can be set to actuate the feeding system for a shorter duration of time to accommodate a shorter endoscope (e.g. a gastroscope). Alternatively, the predetermined programs can be set to actuate the feeding system for a longer duration of time to accommodate a longer endoscope (e.g. a colonoscope). In some embodiments, the predetermined programs allow for about 1 complete rotation of the endoscopy operating instrument per 100 cm.
[0070] Upon completion of the procedure, the endoscopy operating instrument 103 is removed from the device 101 and replaced with a cleaning cable (not shown) having a brush for cleaning the insertion tube 705. Once the cleaning cable is inserted into the device 101, the controller 709 can be actuated to execute a third predetermined program (i.e. a “cleaning program”) which allows the cleaning cable (not shown) to pass through the insertion tube 705 at an increased rate. This increased rate causes an increase in the frequency of rotation of the cleaning cable (not shown) as compared to the frequency of rotation of the endoscopy operating instrument 103 for efficient cleaning of the insertion tube 705. In some embodiments, the cleaning program is configured to allow for 1, 2, 3, 4, or 5 complete rotations of the cleaning cable 100 cm.
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[0072] The endoscopy operating instrument 103 is advanced through the insertion tube 705 of the endoscope 701 until it reaches the target tissue. Upon reaching the target tissue, the operator evaluates if the endoscopy operating instrument 103 is in the correct orientation for the procedure 807. If the endoscopy operating instrument 103 is not in the correct orientation for the procedure, the operator adjusts the endoscope 701—for example, by moving it away from the target tissue—and actuates the device 101 to once again feed the endoscopy operating instrument 103 in a rotational manner such that the endoscopy operating instrument 103 is reoriented in the correct orientation 809. Once the endoscopy operating instrument 103 is in the correct orientation, the procedure is carried out 811.
[0073] Upon completion of the procedure, the operator actuates the device to remove the endoscopy operating instrument 103 from the target tissue by pulling the endoscopy operating instrument 103 through the insertion tube 705, out of the endoscope 701, and out of the device 101, 813.
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[0075] The embodiments illustrated and discussed in this specification are intended only to teach those skilled in the art how to make and use the invention. In describing embodiments of the invention, specific terminology is employed for the sake of clarity. However, the invention is not intended to be limited to the specific terminology so selected. The above-described embodiments of the invention may be modified or varied, without departing from the invention, as appreciated by those skilled in the art in light of the above teachings. It is therefore to be understood that, within the scope of the claims and their equivalents, the invention may be practiced otherwise than as specifically described.