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US 12,728,243 B2Granted
Shunt device and a method for shunting cerebrospinal fluid
AssigneeCsf-Dynamics A/S
InventorSvend Erik Børgesen
Life of this patent
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Abstract
A shunt device for shunting cerebrospinal fluid (CSF) from a CSF containing space to a sinus system cavity comprises a tubular inlet element, a flow restricting part, and a tubular outlet element having an outlet end with an outlet opening for insertion in the sinus system cavity, and a one-way valve preventing flow in a direction from the outlet opening to the inlet opening. The shunt device further comprises a distancer, said distancer being provided at the outlet end of the tubular outlet element.
Claims70
A shunt device, comprising:
- a brain ventricle catheter having an inlet end with an inlet opening and an inner lumen extending through the brain ventricle catheter,
- a tubular outlet element having an outlet end with an outlet opening and an inner lumen extending through the tubular outlet element;
- a shunt body including walls defining a chamber configured for subcutaneous placement of the shunt body on a calvarium of a patient, the inner lumen of the brain ventricle catheter and the inner lumen of the tubular outlet element being operably connected to each other through the shunt body;
- a distancer attached at the outlet end of the tubular outlet element or at an end portion of the tubular outlet element that includes the outlet end,
- wherein the distancer is compactable into a compacted state, and expandable into at least one expanded state;
- wherein the distancer is in one of the at least one expanded state unless an external force is applied to compact the distancer into the compacted state;
- wherein the distancer is configured to maintain the outlet opening substantially at a central position of a lumen of a sinus system cavity of the patient when the tubular outlet element is inserted into the sinus system cavity;
- and
- wherein, when the shunt body is placed on the calvarium of the patient:
- the brain ventricle catheter is shaped and sized to fluidly connect the shunt body with a brain ventricle of the patient when the inlet opening of the brain ventricle catheter is placed in the brain ventricle of the patient;
- and
- the tubular outlet element is shaped and sized to fluidly connect the shunt body with the lumen of the sinus system cavity of the patient when the outlet end and the distancer are inserted into the lumen of the sinus system cavity of the patient and the inlet opening of the brain ventricle catheter is placed in the brain ventricle of the patient.
9 more elements
A shunt device, comprising:
- a brain ventricle catheter having an inlet end with an inlet opening, and an inner lumen extending through the brain ventricle catheter;
- a tubular outlet element having an outlet end with an outlet opening, and an inner lumen extending through the tubular outlet element;
- a shunt body including walls defining a chamber configured for subcutaneous placement of the shunt body on a calvarium of a patient, the inner lumen of the brain ventricle catheter and the inner lumen of the tubular outlet element being operably connected to each other through the shunt body;
- and
- a distancer attached at the outlet end or at a portion of the tubular outlet element that includes the outlet end,
- wherein the distancer is configured to maintain the outlet opening substantially at a central position of a lumen of a sinus system cavity when the tubular outlet element is inserted into the sinus system cavity;
- and
- wherein, when the shunt body is placed on the calvarium of the patient:
- the brain ventricle catheter is shaped and sized to fluidly connect the shunt body with a brain ventricle of the patient when the inlet opening of the brain ventricle catheter is placed in the brain ventricle of the patient;
- and
- the tubular outlet element is shaped and sized to fluidly connect the shunt body with the lumen of the sinus system cavity of the patient when the outlet end and the distancer are inserted into the lumen of the sinus system cavity of the patient and the inlet opening of the brain ventricle catheter is placed in the brain ventricle of the patient.
8 more elements
A shunt device, comprising:
- a tubular inlet element comprising an inlet end with an inlet opening, and an inner lumen extending through the tubular inlet element;
- a tubular outlet element comprising an outlet end with an outlet opening, and an inner lumen extending through the tubular outlet element, the tubular outlet element defining a central longitudinal axis;
- a shunt body, the inner lumen of the tubular inlet element and the inner lumen of the tubular outlet element being operably connected to each other through the shunt body;
- and
- a distancer attached with an attachment member to the outlet end of the tubular outlet element or to a portion of the tubular outlet element that includes the outlet end, and having a central longitudinal axis coaxial with the central longitudinal axis of the tubular outlet element,
- wherein the distancer is compactable into a compacted state, and expandable into at least one expanded state;
- and
- wherein in the compacted state and in the at least one expanded state, the distancer extends from the attachment member beyond the outlet opening along the central longitudinal axis of the tubular outlet element.
5 more elements
A shunt device, comprising:
- a tubular outlet element comprising an outlet end with an outlet opening, and an inner lumen extending through the tubular outlet element, the tubular outlet element defining a central longitudinal axis;
- and
- a distancer attached with an attachment member to the outlet end of the tubular outlet element or to a portion of the tubular outlet element that includes the outlet end, and having a central longitudinal axis coaxial with the central longitudinal axis of the tubular outlet element,
- wherein the distancer is compactable into a compacted state, and expandable into at least one expanded state;
- and
- wherein a portion of the distancer extends into the inner lumen of the tubular outlet element to restrict fluid flow through the inner lumen of the tubular outlet element.
3 more elements
Dependencies are inferred from the claim text.