Method and system for abscess drainage
View Patent ↗The present disclosure is directed to methods and devices for fluid drainage from an abscess of a patient.
1 . A scalpel, comprising:
a cutting tip;
a handle; and
an elongated body joining the cutting tip and the handle, the elongated body comprising a guide channel to receive and guide a catheter along a length of the guide channel, wherein the guide channel comprises a first arcuate portion positioned between second and third arcuate portions and extending substantially an entire length of the guide channel and connected to the cutting tip, the first arcuate portion and the cutting tip comprising a metal material to reflect an X-ray spectrum of electromagnetic wave energy and each of the second and third arcuate portions comprising a polymeric non-resorbable resin to pass substantially the X-ray spectrum of electromagnetic wave energy and wherein the handle is spatially offset from a longitudinal axis of the elongated body to enable movement of the scalpel without user interference and wherein the guide channel has a semicircular cross-sectional profile perpendicular to the longitudinal axis.
2 . The scalpel of claim 1 , wherein the second and third arcuate portions of the guide channel extend substantially the entire length of the guide channel.
3 . The scalpel of claim 1 , wherein the elongated body comprises an upper arcuate surface in the guide channel and a lower arcuate surface opposing the upper arcuate surface.
4 . The scalpel of claim 1 , wherein a gripping surface of the handle is disposed at an angle relative to the longitudinal axis of the elongated body.
5 . The scalpel of claim 1 , further comprising a catheter assembly, the catheter assembly comprising a catheter body; an inner stylet within an interior passage of the catheter body and extending along a length of the catheter body; and an outer stylet within the interior passage of the catheter body and extending along the length of the catheter body, the inner and outer stylets moving independently of each other, wherein the catheter body is positioned in the guide channel.
6 . The scalpel of claim 5 , wherein the catheter body comprises an aspiration port and a plurality of drainage ports, wherein:
in a first operational mode, the inner and outer stylets are positioned simultaneously in the interior passage of the catheter body and block fluid drainage through the aspiration port and plurality of drainage ports; and
in a second operational mode, the inner stylet is removed from the catheter body while the outer stylet remains in the interior passage of the catheter body, thereby forming a first lumen in a volume previously occupied by the inner stylet and enabling fluid drainage from the aspiration port along the first lumen while blocking fluid drainage through the plurality of drainage ports.
7 . The scalpel of claim 6 wherein:
in a third operational mode, both the inner stylets and outer stylets are removed from the interior passage of the catheter body, thereby forming a second lumen in a volume previously occupied by the inner and outer stylets and enabling fluid drainage from the aspiration port and the drainage ports along the second lumen.
8 . The scalpel of claim 5 , wherein the outer stylet comprises a concave draining channel to receive and direct abscess fluid to an output of the catheter assembly.
9 . The scalpel of claim 5 , wherein the catheter body comprises an aspiration port and a plurality of drainage ports, the aspiration port being in a distal portion of the catheter body and the plurality of draining ports being proximal to the aspiration port, the aspiration port being positioned between a tip of the catheter and plurality of drainage ports.
10 . The scalpel of claim 5 , wherein a front end of the catheter body comprises a frustoconical shape that reduces progressively an interior radius of the catheter body to prevent the inner and outer stylets from advancing too far in front of the catheter body.
11 . A scalpel, comprising:
a cutting tip;
a handle; and
an elongated body joining the cutting tip and the handle, the elongated body comprising a guide channel to receive and guide a catheter along a length of the guide channel, wherein the guide channel comprises a first arcuate portion positioned between second and third arcuate portions and extending substantially an entire length of the guide channel and connected to the cutting tip, the first arcuate portion and the cutting tip comprising a metal material to reflect an X-ray spectrum of electromagnetic wave energy and each of the second and third arcuate portions comprising a polymeric non-resorbable resin to pass substantially the X-ray spectrum of electromagnetic wave energy and wherein the guide channel has a semicircular cross-sectional profile perpendicular to the longitudinal axis, wherein the handle is spatially offset from a longitudinal axis of the elongated body to enable movement of the scalpel without user interference, and wherein the second and third arcuate portions of the guide channel extend along a length of the guide channel.
12 . The scalpel of claim 11 , wherein the elongated body comprises an upper arcuate surface in the guide channel and a lower arcuate surface opposing the upper arcuate surface and wherein a gripping surface of the handle is disposed at an angle relative to the longitudinal axis of the elongated body.
13 . The scalpel of claim 11 , further comprising a catheter assembly, the catheter assembly comprising a catheter body; an inner stylet within an interior passage of the catheter body and extending along a length of the catheter body; and an outer stylet within the interior passage of the catheter body and extending along the length of the catheter body, the inner and outer stylets moving independently of each other, wherein the catheter body is positioned in the guide channel.
14 . The scalpel of claim 13 , wherein the catheter body comprises an aspiration port and a plurality of drainage ports and wherein:
in a first operational mode, the inner and outer stylets are positioned simultaneously in the interior passage of the catheter body and block fluid drainage through the aspiration port and plurality of drainage ports; and
in a second operational mode, the inner stylet is removed from the catheter body while the outer stylet remains in the interior passage of the catheter body, thereby forming a first lumen in a volume previously occupied by the inner stylet and enabling fluid drainage from the aspiration port along the first lumen while blocking fluid drainage through the plurality of drainage ports.
15 . The scalpel of claim 14 wherein:
in a third operational mode, both the inner stylets and outer stylets are removed from the interior passage of the catheter body, thereby forming a second lumen in a volume previously occupied by the inner and outer stylets and enabling fluid drainage from the aspiration port and the drainage ports along the second lumen.
16 . The scalpel of claim 13 , wherein the outer stylet comprises a concave draining channel to receive and direct abscess fluid to an output of the catheter assembly.
17 . The scalpel of claim 13 , wherein the catheter body comprises an aspiration port and a plurality of drainage ports, the aspiration port being in a distal portion of the catheter body and the plurality of draining ports being proximal to the aspiration port, the aspiration port being positioned between a tip of the catheter and plurality of drainage ports.
18 . The scalpel of claim 13 , wherein a front end of the catheter body comprises a frustoconical shape that reduces progressively an interior radius of the catheter body to prevent the inner and outer stylets from advancing too far in front of the catheter body.