Cutting tool cleaning accessories

Abstract

To provide a tool or accessory for cleaning a medical device.SOLUTION: A tool or accessory for cleaning a medical device can clean a fluid delivery lumen of an endoscopic submucosal dissection (ESD) knife. The tool or accessory may include a housing with a first portion of an elongate member secured within a first portion of the housing and a second portion of the elongate member extending into a chamber of the housing.SELECTED DRAWING: Figure 1A

Description

[Technical Field]

[0001] The present disclosure relates generally to the field of medical devices and medical device accessories. Specifically, the present disclosure relates to tools or accessories for cleaning medical devices. [Background technology]

[0002] Some devices have fluid delivery lumens that can benefit from irrigation. For example, endoscopic submucosal dissection (ESD) knives with fluid delivery capabilities are designed to inject fluid into the submucosal surface to lift the target lesion and provide a safety cushion while the target lesion is incised. ESD knives that combine tissue dissection and fluid injection capabilities reduce overall procedure time and minimize the costs associated with performing these steps using separate medical instruments. A disadvantage of ESD knives with fluid injection capabilities is that the fluid delivery lumen is prone to becoming clogged or otherwise obstructed by accumulated cellular debris, especially during lengthy endoscopic procedures. Failure to provide and maintain adequate fluid injection throughout an endoscopic procedure can lead to poor patient outcomes, increased procedure times, and / or the need to use multiple ESD knives per procedure. Summary of the Invention [Problem to be solved by the invention]

[0003] Thus, the medical device cleaning implements or accessories and methods of use of the present disclosure may enable a variety of beneficial medical outcomes to be achieved. [Means for solving the problem]

[0004] In one aspect, the present disclosure relates to a medical device cleaning tool comprising a housing, a chamber, and an elongate member. The housing can comprise a first portion and a second portion. The chamber can be formed inside the second portion of the housing. The chamber can define an opening at a distal end of the housing. The elongate member can be disposed within the housing. The first portion of the elongate member can be fixed within the first portion of the housing, and the second portion of the elongate member can extend into the chamber.

[0005] In the described embodiment and other embodiments, the interior dimension of the chamber may be substantially constant along the entire length of the chamber. The second portion of the elongate member may be substantially centered within the chamber. The second portion of the elongate member may have a substantially cylindrical exterior dimension. The second portion of the elongate member may include a helical groove. The helical groove may extend along the entire length of the second portion of the elongate member. The second portion of the elongate member may include a helical twist. The helical twist may extend along the entire length of the second portion of the elongate member. The opening and chamber of the housing may include interior dimensions configured to receive corresponding exterior dimensions of the medical device. The first portion of the elongate member may include an anchoring element configured to secure the elongate member within the housing. The anchoring element may include a flattened or deformed portion of the elongate member. The anchoring element may include an enlarged end portion attached to a proximal end of the elongate member. The housing may be tapered, with a diameter decreasing from the first portion of the housing to the second portion. A clip fitting may be provided on an outer surface of the first portion of the housing. One or more surface structures may be formed on or within the outer surface of the first portion of the housing. The second portion of the elongate member may have an outer dimension configured to extend into a fluid delivery lumen of the medical device. The fluid delivery lumen may include an infusion lumen and a main lumen. The second portion of the elongate member may have a length sufficient to extend through the infusion lumen and into the main lumen. The infusion lumen may have an inner dimension smaller than the inner dimension of the main lumen and larger than the outer dimension of the second portion of the elongate member.

[0006] In another aspect, the present disclosure relates to a medical device cleaning tool comprising a housing, a chamber, an elongate member, a plate, and a spring. The housing can comprise a first portion and a second portion. The chamber can be formed inside the second portion of the housing. The chamber can define an opening at a distal end of the housing. The elongate member can be disposed within the housing. The first portion of the elongate member can be securable within the first portion of the housing, and the second portion of the elongate member can extend into the chamber. The plate can be disposed within the chamber. The plate can define an opening configured to receive the second portion of the elongate member. The spring can be disposed within the chamber and around the elongate member proximal to the plate.

[0007] In the described and other embodiments, the opening of the chamber can have an interior dimension that is smaller than the interior dimension of the remainder of the chamber. The interior dimension of the opening can define a first planar surface configured to contact the distal end of the spring, and the proximal end of the chamber can define a second planar surface configured to contact the proximal end of the spring. The plate can be configured to move from a first axial position in which the plate is in contact with the first planar surface and the spring is not compressed between the first and second planar surfaces, and a second axial position in which the plate is not in contact with the first planar surface and the spring is compressed between the first and second planar surfaces. The plate can be configured to support the elongate member as it moves within the chamber. The plate can be configured to move from the first axial position to the second axial position when a distal portion of the medical device is advanced into the chamber. The plate can be configured to move from the second axial position to the first axial position when the distal portion of the medical device is removed from within the chamber.

[0008] In yet another aspect, the present disclosure relates to a medical device cleaning tool comprising a housing, a chamber, an elongate member, a plate, a plunger, a surface structure, and a spring. The housing can comprise a first portion and a second portion. The chamber can be formed inside the second portion of the housing. The chamber can define an opening at a distal portion of the housing. The elongate member can be slidably disposed within the housing. The plate can be attached to a proximal end of the elongate member. The plunger can be attached to the plate. A portion of the plunger can extend through a portion of a wall of the housing at the proximal end of the housing. The surface structure can include a first planar surface and a second planar surface extending into the proximal portion of the housing. The surface structure can define an opening configured to slidably receive the elongate member. The spring can be disposed around the first portion of the elongate member and between the second planar surface of the surface structure and the third planar surface of the plate.

[0009] In the described and other embodiments, the plunger can be configured to move from a first configuration in which the spring is fully relaxed between the second and third planar surfaces and a second configuration in which the spring is compressed between the second and third planar surfaces. The second portion of the elongate member does not extend distally beyond the opening in the surface structure when the plunger is in the first configuration. The second portion of the elongate member can extend distally beyond the opening in the surface structure when the plunger is in the second configuration.

[0010] Non-limiting embodiments of the present disclosure are described, by way of example, with reference to the accompanying drawings, which are schematic and are not intended to be drawn to scale. In the drawings, each identical or nearly identical component illustrated is typically represented by a single numeral. For clarity, not every component is labeled in every drawing, and not every component of each embodiment is shown unless illustration is necessary to enable those skilled in the art to understand the disclosure. [Brief explanation of the drawings]

[0011] [Figure 1A] 1 is a perspective view of a medical device cleaning tool according to one embodiment of the present disclosure. [Figure 1B] 1 is a perspective view of a medical device cleaning tool according to one embodiment of the present disclosure. [Figure 2A] 1 is a perspective view of a medical device cleaning tool according to one embodiment of the present disclosure. [Figure 2B] 1 is a perspective view of a medical device cleaning tool according to one embodiment of the present disclosure. [Figure 3A] 1 is a perspective view of a medical device cleaning tool according to one embodiment of the present disclosure. [Figure 3B] 1 is a perspective view of a medical device cleaning tool according to one embodiment of the present disclosure. [Figure 4A] 1 is a perspective view of an elongate member of a medical device cleaning tool according to one embodiment of the present disclosure. [Figure 4B] 1 is a perspective view of an elongate member of a medical device cleaning tool according to one embodiment of the present disclosure. [Figure 5A] FIG. 1 is a perspective view of an ESD knife according to one embodiment of the present disclosure. [Figure 5B] FIG. 1 is a perspective view of an ESD knife according to one embodiment of the present disclosure. [Figure 6A] 1 is a perspective view illustrating a medical device cleaning tool and an ESD knife according to one embodiment of the present disclosure. [Figure 6B] 1 is a perspective view illustrating a medical device cleaning tool and an ESD knife according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present disclosure is not limited to the specific embodiments described herein. The technical terms used herein are merely for describing specific embodiments and are not intended to be limiting, regardless of the scope of the appended claims. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs.

[0013] Although embodiments of the present disclosure are described with specific reference to medical tools or accessories designed to remove debris from the fluid delivery lumen of an ESD knife, it should be appreciated that such tools / accessories can be used to clean a variety of medical (and non-medical) devices.

[0014] As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and / or "comprising," or "includes" and / or "including," when used herein, specify the presence of stated features, regions, steps, elements, and / or components, but do not exclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components, and / or groups thereof.

[0015] As used herein, the term "distal" refers to the end furthest from the medical professional when introducing the device into a patient, while the term "proximal" refers to the end closest to the medical professional when introducing the device into a patient.

[0016] 1A-1B, in one embodiment, a medical device (e.g., ESD knife, etc.) cleaning tool 100 of the present disclosure can include a housing 110 having a first (e.g., proximal) portion 112 and a second (e.g., distal) portion 114. In various embodiments, the outer surface of the housing 110 can decrease in diameter (e.g., tapered) from the first portion to the second portion. A chamber 116 with a distal opening 118 can be formed within the second portion 114 of the housing 110. In various embodiments, the chamber 116 can be approximately centrally located within the second portion 114 of the housing 110. The chamber 116 can have a substantially constant inner dimension d1 and length L1 configured to receive a corresponding outer dimension d3 of a distal portion of an ESD knife 400 ( FIGS. 5A-5B ) including a cutting element 416.

[0017] The elongate member 120 (e.g., shaft, rod, pin, post, etc.) can be positioned within the housing 110 such that a first (e.g., proximal) portion 122 of the elongate member 120 is fixed (e.g., embedded, anchored, stationary, etc.) within the first portion 112 of the housing 110 and a second (e.g., distal) portion 124 of the elongate member 120 extends into the chamber 116. In various embodiments, the second portion 124 of the elongate member 120 can be approximately centered within the chamber 116. The second portion 124 of the elongate member 120 can have a length L2 (e.g., approximately 9.0-11.0 mm) that is shorter than the length L1 of the chamber 116 such that the second portion 124 does not extend beyond the opening 118 of the chamber 116 (e.g., the second portion 124 is completely contained within the chamber 116). The second portion 124 of the elongate member 120 can have a substantially constant outer dimension d2 (e.g., approximately 0.30 mm) configured to extend into (e.g., be received within) the fluid delivery lumen 418 ( FIGS. 6A-6B ) of the ESD knife 400 with the cutting element 416. In various embodiments, an anchoring element can be attached to the first portion 122 of the elongate member 120 (e.g., using a suitable adhesive, glue, resin, solder, etc.) or integrally formed (e.g., overmolded, co-molded, etc.) with the first portion 122 to further secure the elongate member 120 within the housing 110. By way of non-limiting example, the anchoring element can include an enlarged end portion 126 ( FIG. 1A ) or a deformed / flattened portion 128 ( FIG. 1B ) embedded within the first portion 112 of the housing 110.

[0018] In various embodiments, a clip attachment 115 (e.g., a clip, a clasp, a flexible arm, etc.) can be attached to or integrally molded with the exterior surface of the first portion 112 of the housing 110. The clip attachment 115 (FIG. 1A) can be configured to removably secure or fasten the medical device cleaning tool 100 to various surfaces within a medical suite to facilitate access by a medical professional and / or to prevent loss or misplacement during a medical procedure. Additionally or alternatively, the exterior surface of the first portion 112 of the housing 110 can include one or more surface structures 113 (e.g., recessed portions, indentations, grooves, dotted patterns, etc.) to provide a medical professional with an improved grip and / or improved ergonomics when cleaning a medical device.

[0019] 2A-2B, in one embodiment, a medical device cleaning tool 200 of the present disclosure includes a housing 110 and an elongate member 120 having the same (or similar) elements as outlined in FIGS. 1A-1B, and can further include a chamber 216 having a length L1 and an opening 218a with a substantially constant interior dimension d4 that is smaller than the interior dimension d1 of the remainder of the chamber 216. As described above, the interior dimensions d1 and d4 and the length L1 of the chamber 216 can be configured to receive the exterior dimension d3 of the distal portion of an ESD knife 400 including a cutting element 416 (FIGS. 5A-5B). In various embodiments, the opening 218a can be defined by a thickened wall portion (e.g., a protrusion, a surface structure, etc.) that extends into the chamber and defines a first substantially planar surface 219a on the interior of the chamber 216. In various embodiments, the opposite (e.g., proximal) end of chamber 216 can define a second substantially planar surface 219b. A plate 230 can be movably / slidably disposed within chamber 216 proximal to planar surface 219a. Plate 230 can define an opening 218b having an internal dimension d5 configured to receive a corresponding external dimension d2 of second portion 124 of elongate member 120. A spring 234 (e.g., a coil spring) can be disposed within chamber 216 around second portion 124 of elongate member 120 and proximal to plate 230 such that a distal end of spring 234 contacts first planar surface 219a and a proximal end of spring 234 contacts second planar surface 219b. In various embodiments, the plate 230 can move (e.g., slide) along / over the second portion 124 of the elongate member 120 from a first axial position to various second axial positions within the chamber 216.2A , in a first axial position, plate 230 can contact or abut first planar surface 219 a, and spring 234 can be substantially relaxed (e.g., uncompressed, extended, etc.) within chamber 216 to maintain second portion 124 of elongate member 120 in an unexposed (e.g., protected) configuration within chamber 216. Referring to FIG. 2B , in a second axial position, plate 230 can move toward second planar surface 219 b, and spring 234 can be sufficiently compressed within chamber 216 to expose all or a portion of second portion 124 of elongate member 120 within chamber 216. In various embodiments, plate 230 can move from the first axial position to the second axial position when the tip of an ESD knife is inserted into the chamber. In various additional embodiments, the plate can return from the second axial position to the first axial position when the ESD knife is removed from within the chamber 216. In various embodiments, in addition to protecting and / or exposing the second portion 124 of the elongate member 120 within the chamber 216, the plate 230 can support the elongate member 120 to prevent or minimize bending or twisting of the elongate member 120, for example, when the distal portion of the ESD knife is inserted into the chamber 216.

[0020] 3A-3B, in one embodiment, a medical device cleaning tool 300 of the present disclosure includes a housing 110 having the same (or similar) elements as outlined in FIGS. 1A-1B, and can further include a chamber 316 having an opening 318a, an inside dimension d1, and a length L1 configured to receive a corresponding outside dimension d3 of a distal portion of an ESD knife 400 including a cutting element 416 (FIGS. 5A-5B). A proximal portion of the chamber 316 can include a thickened wall portion (e.g., a flange, protrusion, surface structure, etc.) (discussed below) that extends into the chamber 316 and defines an opening 318b having an inside dimension d6 configured to receive a corresponding outside dimension d2 of an elongate member 320. In various embodiments, the thickened wall portion can define a first substantially planar surface 319a and a second substantially planar surface 319b within the chamber 316. Elongate member 320 is movably / slidably mounted within housing 110. Plate 330 may be attached to or integrally formed with the proximal end of elongate member 320 and may be proximal to second planar surface 319b. In various embodiments, the plate may define a third substantially planar surface 319c. Plunger 332 may extend through an opening (not shown) formed in the proximal end of the housing, with the distal end of plunger 332 attached to or otherwise in contact with the proximal end of plate 330. A spring 334 may be positioned within chamber 316 around first portion 322 of elongate member 320 and proximal to second planar surface 319b of thickened wall portion such that a distal end of spring 334 contacts second planar surface 319b and a proximal end of spring contacts third planar surface 319c of plate 330. In various embodiments, the plunger may be moved between a first (e.g., unstressed) and a second (e.g., stressed) configuration by applying a force to the proximal end of the plunger to advance distally and / or retract proximally elongate member 320 to various axial positions within chamber 316.For example, referring to FIG. 3A , in which the plunger 332 is in a first position, the tip of the elongate member 320 extends into the opening 318b, and the spring 334 is in a substantially relaxed state (e.g., uncompressed, expanded, etc.) between the second and third planar surfaces 319b, 319c, thereby maintaining the second portion 324 of the elongate member 320 in an unexposed (e.g., unexpanded, protected, etc.) positional configuration within the chamber 316 (e.g., the second portion 324 of the elongate member does not extend distally beyond the opening 318b of the surface structure into the portion of the chamber 316 having the inner dimension d1). 3B , with plunger 332 in the second configuration, third planar surface 319c of plate 330 moves toward second planar surface 319b, and spring 334 is significantly compressed between these surfaces, urging second portion 324 of elongate member 320 to advance (e.g., extend, etc.) distally through opening 318b and into the portion of chamber 316 having interior dimension d1. In various embodiments, opening 318b can support elongate member 320 to prevent or minimize bending or twisting of elongate member 320, for example, when the distal portion of an ESD knife is inserted into chamber 316.

[0021] In various embodiments, the distal portion of ESD knife 400 can be inserted into chamber 316 so that the tip of the ESD knife, including cutting element 416, contacts or is adjacent first planar surface 319a and so that fluid delivery lumen 318 is generally aligned with opening 318b. Plunger 332 can then be depressed to advance second portion 324 of elongate member 320 distally into fluid delivery lumen 318 of the ESD knife (discussed below).

[0022] While the elongate members 120, 320 of the medical device cleaning tools 100, 200, 300 of the present disclosure are illustrated as having a generally cylindrical outer dimension along the entire length of each of the first and second sections, with reference to FIGS. 4A-4B, in various embodiments, the elongate members can have various non-cylindrical outer dimensions. As a non-limiting example, a spiral groove may extend along all or a portion of the elongate member (FIG. 4A). Additionally or alternatively, all or a portion of the elongate member may have a spiral twist, e.g., having a solid, flat profile. In various additional embodiments, the elongate member may have various additional surface structures (e.g., ridges, indentations, striations, brushed finishes, recessed portions, etc.) to break up and / or remove debris from within the fluid delivery lumen of the ESD knife. In various additional embodiments, a channel or lumen (not shown) may extend through all or a portion of the elongate member 120, 320.

[0023] 5A-5B, in one embodiment, an ESD knife 400 of the present disclosure can include a shaft 410 with a distal portion 412 having an outer dimension d3, an insulated distal tip 414, and a cutting element 416. A fluid delivery lumen 418 (e.g., an infusion lumen, an infusion port, etc.) can extend through the entire length of the shaft 410 and the cutting element 416. In various embodiments, the fluid delivery lumen 418 can include a main lumen 418a extending through the entire length of the shaft 410 and an infusion lumen 418b extending through the entire length of the cutting element 416, wherein the main lumen 418a and the infusion lumen 418b are coextensive with each other. The infusion lumen 418b can have a length L3 that is less than the length L2 of the second portion 124, 324 of the elongate member 120, 320. Additionally, the main lumen 418a can have an inner dimension d7, and the infusion lumen 418b can have an inner dimension d8. The inner dimension d8 of the infusion lumen 418b may be smaller than the inner dimension d7 of the main lumen 418a but larger than the outer dimension d2 of the elongate member, for example, such that the second portion 124, 324 of the elongate member 120, 320 can be received within the infusion lumen 418b and extend through the infusion lumen 418b and into the main lumen 418a of the shaft 410.

[0024] 6A-6B, in use, and by way of example, a medical professional can break up and / or remove debris 420 trapped within the fluid delivery lumen 418 of the ESD knife 400 by inserting the distal portion 412 of the ESD knife 400 into the chamber 116 of the medical device cleaning tool 100 such that the second portion 124 of the elongate member 120 extends through the infusion lumen 418b and into the main lumen 418a. In this example, the electrode 416 can be positioned in an extended position (as shown) or a retracted position (not shown) when the distal portion 412 of the ESD knife 400 is inserted into the chamber 116 of the medical device cleaning tool 100. The medical professional can then move the medical device cleaning tool 100 back and forth along the distal portion 412 of the ESD knife 400, with or without a twisting motion, as needed to break up debris 420 that has accumulated within the infusion lumen 418b and / or the main lumen 418a. In various embodiments, because the interior dimension d7 of the main lumen 418a is larger than the interior dimension d8 of the infusion lumen 418b, debris 420 that has accumulated within the infusion lumen 418b can flow into the main lumen 418a, thereby restoring proper fluid flow through the infusion lumens. Additionally or alternatively, debris 420 that has accumulated within the main lumen 418a and / or the infusion lumen 418b can be removed or released from within the shaft 410 when the distal portion 412 of the ESD knife 400 is removed from within the chamber 116 of the medical device cleaning tool 100. For example, in embodiments of the present disclosure in which the second portion 124 of the elongate member 120 includes surface structures (e.g., helical grooves or helical twists), debris can accumulate within such surface structures.

[0025] 6A-6B illustrate an embodiment of the present disclosure in which the disclosed medical device cleaning tool 100 is used to remove debris from the infusion lumen 418b of the ESD knife 400, in various embodiments, either of the medical device cleaning tools 200, 300 disclosed herein can be used to remove debris as discussed above. For example, the distal portion 412 of the ESD knife 400 can be inserted into the chamber 216 of the medical device cleaning tool 200 so that the end of the ESD knife contacts the plate 230 and moves the plate 230 proximally within the chamber 216, and the elongate member 120 enters and passes through the infusion lumen 418b and the main lumen 418a. Similarly, the distal portion 412 of the ESD knife 400 can be inserted into the chamber 316 of the medical device cleaning tool 300 so that the end of the ESD knife contacts the first substantially planar surface 319a of the thickened wall. Plunger 332 may then be advanced distally and / or retracted proximally to move elongate member 320 through infusion lumen 418b and main lumen 418a.

[0026] In various additional embodiments, in addition to removing debris from the infusion lumen of the ESD knife, the inner surfaces of the chambers 116, 216, 316 of the medical device cleaning tools 100, 200, 300 disclosed herein can be configured to remove debris accumulated on the outer surface of the medical device, such as by applying one or more surface structures (e.g., a rough texture / coating, a dotted pattern, a grid pattern, etc.) to or integrally forming all or a portion of the inner surface of the chambers 116, 216, 316 (e.g., as a spray coating).

[0027] In various embodiments, any or all of the components of the housing 110 of the medical device cleaning tools 100, 200, 300 disclosed herein may be formed (e.g., injection molded, coextruded) from or otherwise include a variety of rigid thermoplastic polymers that are resistant to various disinfection or sterilization methods (e.g., chemicals, radiation, UV light), such as polycarbonate, ABS, nylon, glass-reinforced nylon, acetal acrylic, PEET, PEEK, Pebax®, polypropylene, and the like.

[0028] All of the devices and / or methods disclosed and claimed herein can be made and executed without undue experimentation in light of the present disclosure. While the devices and methods of the present disclosure have been described in terms of preferred embodiments, it may be apparent to those skilled in the art that changes can be made in the devices and / or methods, and in the steps or sequence of steps of the methods, described herein without departing from the concept, spirit and scope of the present disclosure. All such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope and concept of the present disclosure as defined by the appended claims. The technical ideas included in the present disclosure are described below. (Appendix 1) A medical device cleaning tool comprising: a housing having a first portion and a second portion; a chamber formed inside the second portion of the housing, the chamber defining an opening at the distal end of the housing; and an elongate member disposed within the housing, a first portion of the elongate member fixed within the first portion of the housing and a second portion of the elongate member extending into the chamber; A medical device cleaning tool comprising: (Appendix 2) 2. The medical device cleaning tool of claim 1, wherein the interior dimensions of the chamber are substantially constant along the entire length of the chamber. (Appendix 3) 3. The medical device cleaning tool according to any one of claims 1 to 2, wherein the second portion of the elongated member is provided approximately centrally inside the chamber. (Appendix 4) 4. The medical device cleaning tool according to any one of claims 1 to 3, wherein the second portion of the elongated member has a substantially cylindrical outer dimension. (Appendix 5) 5. The medical device cleaning tool according to any one of claims 1 to 4, wherein the second portion of the elongated member is provided with a spiral groove. (Appendix 6) 6. The medical device cleaning tool according to any one of claims 1 to 5, wherein the second portion of the elongated member has a helical twist. (Appendix 7) 7. The medical device cleaning tool of any one of claims 1 to 6, wherein the opening and chamber of the housing have internal dimensions configured to receive corresponding external dimensions of the medical device. (Appendix 8) 8. The medical device cleaning tool of any one of claims 1 to 7, wherein the first portion of the elongated member comprises an anchoring element configured to secure the elongated member within the housing. (Appendix 9) 9. The medical device cleaning tool of claim 8, wherein the fastening element comprises a flattened or deformed portion of the elongate member. (Appendix 10) 9. The medical device cleaning tool of claim 8, wherein the anchoring element includes an enlarged end portion attached to a proximal end of the elongate member. (Appendix 11) 11. The medical device cleaning tool according to any one of appendixes 1 to 10, wherein the housing is tapered such that the diameter decreases from the first portion to the second portion of the housing. (Appendix 12) 12. The medical device cleaning tool of any one of claims 1 to 11, further comprising a clip-type attachment attached to the outer surface of the housing. (Appendix 13) 13. The medical device cleaning tool of any one of claims 1 to 12, further comprising one or more surface structures formed on or within the outer surface of the housing. (Appendix 14) 8. The medical device cleaning tool of claim 7, wherein the second portion of the elongate member has an outer dimension configured to extend into a fluid delivery lumen of the medical device. (Appendix 15) 15. The medical device cleaning tool of claim 14, wherein the fluid delivery lumen comprises an infusion lumen and a main lumen, and the second portion of the elongate member has a length sufficient to extend through the infusion lumen and into the main lumen.

Claims

1. A medical device cleaning tool comprising: a housing having a first portion and a second portion; a chamber formed inside the second portion of the housing, the chamber defining an opening at a distal end of the housing, the opening in the housing and the chamber each having an interior dimension configured to receive a corresponding exterior dimension of a medical device; and 10. A medical device cleaning tool comprising: an elongate member disposed within the housing, a first portion of the elongate member secured within the first portion of the housing, a second portion of the elongate member extending into the chamber, the first portion of the elongate member comprising an anchoring element configured to secure the elongate member within the housing.

2. The medical device cleaning tool of claim 1 , wherein the second portion of the elongate member has a length that is less than a length of the chamber.

3. The medical device cleaning tool of claim 1 , wherein the fastening element includes an enlarged end portion embedded within the first portion of the housing.

4. A medical device cleaning tool as described in claim 1, wherein at least the second portion of the housing is formed from a rigid thermoplastic polymer and the chamber has a constant inner diameter.

5. The medical device cleaning tool of claim 1 , wherein the second portion of the elongate member comprises a helical groove or a helical twist.

6. 10. The medical device cleaning tool of claim 1, wherein the opening of the chamber is defined by a thickened wall portion extending into the chamber.

7. a plate disposed within the chamber, the plate defining an opening configured to receive the second portion of the elongate member; and 7. The medical device cleaning tool of claim 6, further comprising a spring positioned within the chamber around the elongate member and proximal to the plate.

8. The medical device cleaning tool of claim 1 , further comprising a clip mounted on an exterior surface of the first portion of the housing.

9. The housing has a longitudinal axis extending longitudinally from the outer end of the first portion to the outer end of the second portion, and is tapered such that the diameter decreases from the first portion of the housing to the second portion of the housing; The medical device cleaning tool of claim 1 , wherein the chamber extends along the longitudinal axis of the second portion of the housing.

10. 10. The medical device cleaning tool of claim 9, wherein the outer surface of the housing tapers from the first portion to the second portion, the second portion of the housing being formed from a rigid thermoplastic polymer.

11. 10. The medical device cleaning tool of claim 9, wherein the second portion of the elongate member has a length that is less than a length of the chamber.

12. A medical device cleaning tool as described in claim 1, wherein the elongated member has an enlarged end portion located inside the first portion of the housing.

13. at least the second portion of the housing is formed from a rigid thermoplastic polymer; the opening and the chamber of the housing are configured to receive a portion of a medical device; The medical device cleaning tool of claim 12 , wherein the second portion of the elongate member is configured to extend into a fluid delivery lumen of the medical device.

14. The second portion of the elongated member has a length shorter than a length of the chamber; the housing has a longitudinal axis extending longitudinally from an outer end of the first portion to an outer end of the second portion; The medical device cleaning tool of claim 12, wherein the chamber extends along the longitudinal axis of the second portion of the housing.

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