US-20260124407-A1 - SURGICAL FLUID DELIVERY SYSTEM AND COMPONENTS THEREOF

US20260124407A1US 20260124407 A1US20260124407 A1US 20260124407A1US-20260124407-A1

Abstract

A medical instrument accessory for providing fluid to a body cavity of a patient during a surgical procedure. The medical instrument accessory comprises a body mountable over at least a portion of a shaft of a medical instrument. The body comprises an inner wall defining a lumen, a proximal end; a distal end defining an opening; a fluid connecting portion configured to connect the lumen in fluid connection with a fluid source; and a sealing element configured to provide a substantially fluid-tight seal with the medical instrument. The sealing element is configured to allow rotation of the medical instrument accessory relative to the medical instrument shaft, such that rotational movement of the fluid connecting portion is decoupled from rotational movement of the medical instrument shaft. Also disclosed are: a swivel connector for a medical instrument accessory; a flow controller for controlling flow in a fluid evacuation line for a surgical system; a fluid line connector for joining a first fluid evacuation line and a second fluid evacuation line to a suction canister; a fluid evacuation system; and a system for providing fluid to and venting fluid from a body cavity of a patient during a surgical procedure.

Inventors

Richard John Boyes
Benjamin Elliot Hardinge PEGMAN
Rochelle Lynne Briones BIBAL
Alice Chall-Kei NG
Zane Paul GELL
Christopher Keith WATSON
Xueyan Bian

Assignees

FISHER & PAYKEL HEALTHCARE LIMITED

Dates

Publication Date: 20260507
Application Date: 20230829

Claims (20)

1 - 81 . (canceled)
82 . A medical instrument accessory for providing fluid to a body cavity of a patient during a surgical procedure, the medical instrument accessory comprising: a body mountable over at least a portion of a shaft of a medical instrument, the body comprising: an inner wall defining a lumen; a proximal end; a distal end defining an opening; a fluid connecting portion configured to connect the lumen in fluid connection with a fluid source; and a sealing element configured to provide a fluid-tight seal with the medical instrument; wherein the sealing element is configured to allow rotation of the medical instrument accessory relative to the shaft of the medical instrument, such that rotational movement of the fluid connecting portion is decoupled from rotational movement of the shaft of the medical instrument.
83 . The medical instrument accessory of claim 82 , wherein the sealing element is configured to allow relative rotation of the fluid connecting portion about a longitudinal axis of the shaft of the medical instrument.
84 . The medical instrument accessory of claim 82 , wherein the fluid-tight seal is maintained during relative rotation between the shaft of the medical instrument and the medical instrument accessory.
85 . The medical instrument accessory of claim 82 , wherein the sealing element is configured to retain the medical instrument in position within the medical instrument accessory.
86 . The medical instrument accessory of claim 82 , wherein the sealing element is provided at or adjacent to a proximal end of the lumen and/or above the fluid connecting portion.
87 . The medical instrument accessory of claim 82 , further comprising at least one guide element on or within the inner wall.
88 . The medical instrument accessory of claim 87 , wherein the at least one guide element comprises a plurality of guide elements.
89 . The medical instrument accessory of claim 87 , wherein the at least one guide element is configured to position the shaft of the medical instrument within the lumen.
90 . The medical instrument accessory of claim 89 , wherein the at least one guide element holds the shaft of the medical instrument concentrically within the lumen.
91 . The medical instrument accessory of claim 87 , wherein the at least one guide element comprises one or more ribs extending inwardly from the inner wall.
92 . The medical instrument accessory of claim 91 , wherein the one or more ribs are located at or adjacent to the distal end of the body.
93 . The medical instrument accessory of claim 82 , wherein the sealing element is configured to provide a first resistance upon insertion of the medical instrument into the lumen, and a second resistance upon withdrawal of the medical instrument from the lumen.
94 . The medical instrument accessory of claim 93 , wherein the second resistance is greater than the first resistance.
95 . The medical instrument accessory of claim 82 , wherein the sealing element provides the fluid-tight seal with the shaft of the medical instrument.
96 . The medical instrument accessory of claim 82 , wherein the body further comprises a guide portion at the proximal end to guide the medical instrument into the lumen.
97 . A medical instrument accessory for providing fluid to a body cavity of a patient during a surgical procedure, the medical instrument accessory comprising: a body mountable over at least a portion of a shaft of a medical instrument, the body comprising: an inner wall defining a lumen, a proximal end; a distal end defining an opening; a first portion comprising a sealing element configured to provide a fluid-tight seal with the medical instrument; and a second portion comprising a fluid connecting portion configured to connect the lumen in fluid connection with a fluid source, wherein the second portion is rotatably coupled to the first portion.
98 . A medical instrument accessory for providing fluid to and/or from a body cavity of a patient during a surgical procedure, the medical instrument accessory comprising: a body mountable over at least a portion of a shaft of a medical instrument, the body comprising: an inner wall defining a lumen, a proximal end; a distal end defining an opening; a fluid connecting portion configured to connect the lumen in fluid communication with a fluid delivery tube; a sealing element configured to provide a fluid-tight seal with the medical instrument; and a securing element configured to maintain a position of the shaft of the medical instrument relative to at least a portion of the medical instrument accessory; wherein the body is configured such that rotational movement of the fluid connecting portion is decoupled from rotational movement of the sealing element and/or the securing element.
99 . The medical instrument accessory of claim 98 , wherein the securing element is configured to maintain a position of the shaft of the medical instrument within the medical instrument accessory.
100 . The medical instrument accessory of claim 98 , wherein the securing element is the sealing element.

Description

FIELD OF THE DISCLOSURE The present disclosure relates to systems and components of systems configured to deliver fluid to and/or vent fluid from a body cavity of a patient, in particular during a medical procedure. BACKGROUND Various medical procedures may require the provision of fluid, such as carbon dioxide gas, to a patient during the procedure. Medical procedures may additionally or alternatively require venting of fluid from the body cavity. An insufflator may be arranged to deliver fluid to a body cavity of the patient to inflate the body cavity and/or to resist collapse of the body cavity during a surgical procedure. Examples of such medical procedures include laparoscopy and endoscopy, although an insufflator may be used with any other type of medical procedure as required. Endoscopic procedures enable a medical practitioner to visualize a body cavity by inserting an endoscope, or the like, through one or more natural openings, small puncture(s), or incision(s) to generate an image of the body cavity. In laparoscopy procedures, a medical practitioner typically inserts a medical instrument through natural openings, small puncture(s), or incision(s) to perform a medical procedure in the body cavity. In some cases an initial endoscopic procedure may be carried out to assess the body cavity, and then a subsequent laparoscopy carried out to operate on the body cavity. Such procedures are widely used, for example, on the peritoneal cavity, or during a thoracoscopy, colonoscopy, gastroscopy or bronchoscopy. Vision through a viewing portion (e.g. lens) of the instrument can be impaired by a number of factors. For example, vision may be impaired when condensation forms on the viewing portion, and/or when condensation forms on the instrument, which can coalesce into water droplets and drip onto the viewing portion. Vision may also be impaired by smoke in the cavity (for example, from cauterisation or similar) and/or smoke particles adhering to the viewing portion. Any discussion of documents, acts, materials, devices, articles or the like which has been included in the present specification is not to be taken as an admission that any or all of these matters form part of the prior art base or were common general knowledge in the field relevant to the present disclosure as it existed before the priority date of each of the appended claims. SUMMARY The present disclosure provides examples of a system configured to deliver fluid to and/or vent fluid from a body cavity of a patient during a medical procedure, for example a surgical procedure. The present disclosure also provides examples of systems, and components of systems, configured to deliver fluid to and/or vent fluid from a body cavity of a patient during a medical procedure. The system components may include one or more of a medical instrument accessory, a flow controller and a fluid line connector. Condensation may occur when the temperature of a gas falls below the dew point temperature for the level of humidity the gas is carrying. This may be caused by the gas contacting a surface which is at a temperature below the dew-point temperature of the gas. The human body is a warm and humid environment and can have a temperature (such as a core body temperature, for example) of about 37° C. Prior to being inserted into this environment, medical instruments intended for insertion into the body cavity, such as cameras, scopes, or other medical instruments may have a temperature, and/or can be exposed to temperatures, at or below typical room temperature and/or below a typical human body temperature. When inserted into this environment, condensation or fogging can form on a viewing portion of the medical instrument (such as a scope) or elsewhere on the medical instrument. In some cases, this condensation can coalesce into droplets. Condensation can also form elsewhere, such as within a cannula through which the medical instrument is inserted, which can coalesce into droplets and migrate down towards, and onto, the viewing portion. Further, when the instrument is removed from the body cavity, this may cause the temperature of the instrument to decrease, which can result in further fogging and/or condensation when reintroduced to the cavity. Condensation, fogging, and/or droplets on the viewing portion can impair vision of a user of the medical instrument. Additionally and/or alternatively, during a medical procedure, various other substances can contact the viewing portion of the medical instrument, and/or come within view of the viewing portion of the medical instrument, which can impair vision. For example, the viewing portion of a scope may contact or be positioned near particles created by the procedure, such as surgical smoke. When the viewing portion becomes contaminated by particles, fluid droplets, or the like, it may be necessary to remove the medical instrument and clean the visual impairment. However, removing a medical instrument from the body cavit