INSERTION TOOL AND INSERTION METHOD FOR ARTERIAL TAMPONADE DEVICE
First Claim
1. An insertion tool for inserting an arterial tamponade device comprising a flexible, deformable connecting strut having an arterial compressor at one end into a human nasal cavity to apply pressure to a blood vessel in a cavity wall with the arterial compressor while the opposite end bears against an opposing portion of the cavity, comprising:
- a handle having a hand grip portion and a body portion;
an elongate barrel extending from the body portion, the barrel having first and second telescopically engaged parts which are relatively movable between a first, extended position and a second, retracted position, the first part being fixed to the body portion and the second part being movable between device retaining and release positions;
a trigger mechanism on the handle configured to move the first part back and forth between the retaining and release positions;
one of the parts comprising a hollow sleeve and the other part comprising an inner shaft, each part having a distal tip, the distal tip of the hollow sleeve extending over the distal tip of the inner shaft in the device retaining position and the distal tip of the inner shaft protruding out of the distal tip of the hollow sleeve in the device release position; and
the distal tip of the shaft having a hook portion configured to engage the bend between adjacent end portions of a flexible, deformable connecting strut of a tamponade device and the hollow sleeve configured to extend over the hook portion and compress the deformable connecting strut into a deformed, U-shaped configuration in the device retaining position;
the distal tip of the sleeve being at a Predetermined distal spacing from the hook portion in the retaining position such that the majority of the deformed, U-shaped connecting strut is within the sleeve and opposite ends of the device protrude from the distal tip of the sleeve.
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Accused Products
Abstract
An ergonomic insertion tool for insertion and retrieval of an arterial tamponade device which has an elongate connecting strut of resiliently deformable material and an arterial compressor at one end. The tool has a handle with a hand grip portion including an actuating trigger, and an elongate barrel. The barrel has a shaft and an outer sleeve telescopically engaged over the shaft. In a first position, a hooked distal end of the shaft protrudes from the sleeve to engage a bend between adjacent end portions of the connecting strut. On movement into a second position, the sleeve extends over the hooked end and compresses the deformable connecting strut into a deformed, U-shaped configuration to hold the device during insertion or retrieval. On movement back into the first position, the deformed device is released to spring out towards the expanded condition.
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Citations
18 Claims
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1. An insertion tool for inserting an arterial tamponade device comprising a flexible, deformable connecting strut having an arterial compressor at one end into a human nasal cavity to apply pressure to a blood vessel in a cavity wall with the arterial compressor while the opposite end bears against an opposing portion of the cavity, comprising:
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a handle having a hand grip portion and a body portion; an elongate barrel extending from the body portion, the barrel having first and second telescopically engaged parts which are relatively movable between a first, extended position and a second, retracted position, the first part being fixed to the body portion and the second part being movable between device retaining and release positions; a trigger mechanism on the handle configured to move the first part back and forth between the retaining and release positions; one of the parts comprising a hollow sleeve and the other part comprising an inner shaft, each part having a distal tip, the distal tip of the hollow sleeve extending over the distal tip of the inner shaft in the device retaining position and the distal tip of the inner shaft protruding out of the distal tip of the hollow sleeve in the device release position; and the distal tip of the shaft having a hook portion configured to engage the bend between adjacent end portions of a flexible, deformable connecting strut of a tamponade device and the hollow sleeve configured to extend over the hook portion and compress the deformable connecting strut into a deformed, U-shaped configuration in the device retaining position; the distal tip of the sleeve being at a Predetermined distal spacing from the hook portion in the retaining position such that the majority of the deformed, U-shaped connecting strut is within the sleeve and opposite ends of the device protrude from the distal tip of the sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of deploying an arterial tamponade device into a human nasal cavity in order to temporarily apply pressure to an area of a body cavity wall including a blood vessel and occlude or substantially occlude the vessel to stop or reduce blood flow, comprising:
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hooking a central region of an elongate, resilient strut of a tamponade device into a hooked end portion at the distal tip of an inner shaft of a barrel of an insertion tool with the inner shaft protruding from the distal tip of an outer sleeve telescopically engaged over the inner shaft; extending the distal tip of the outer sleeve over the hook shaped portion to retain the hooked central region of the strut in the hooked end portion; continuing to move the outer sleeve relative to the inner shaft so that the distal tip of the shaft is retracted into the sleeve and the elongate resilient strut is bent from a substantially straight, relaxed condition into a bent, deformed condition in which opposite ends of the device are moved towards one another into a generally U-shaped, compressed configuration with tissue engaging faces at opposite ends of the strut protruding from the distal tip of the sleeve and facing outwards and away from one another; inserting at least the distal end of the barrel holding the generally U-shaped tamponade device into a body cavity with an arterial compressor at one end of the bent strut oriented to face towards a predetermined region of the cavity wall which includes a blood vessel; releasing the tamponade device from the insertion tool at a predetermined location in the body cavity by retracting the outer sleeve from the distal tip of the inner shaft until the hooked end portion is exposed and the hooked central region of the strut is exposed, whereby the strut expands outwards from the generally U-shaped deformed configuration towards a fully expanded condition and the opposite ends of the device engage and press against opposing wall regions of the body cavity before the strut is fully expanded, the arterial compressor configured to press against the predetermined region of the cavity wall including the blood vessel and to apply sufficient pressure to at least partially occlude the blood vessel and reduce blood flow to the body cavity; and unhooking the hooked end of the inner shaft of the barrel from the central region of the strut and retracting the barrel from the body cavity. - View Dependent Claims (16, 17, 18)
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Specification