Biopsy device for removing tissue specimens using a vacuum
First Claim
1. A biopsy device for taking tissue samples, comprising:
- a housing containing an electric power source and a tension slide, wherein the tension slide is configured to be moved to a cocked position against the action of a first spring, the tension slide configured to be locked in the cocked position by a releasable locking mechanism;
a removable element configured for insertion into the housing to couple the electric power source to the tension slide, comprising;
a biopsy needle unit, comprising a hollow biopsy needle having a sample removal chamber, and a cutting sheath coaxially arranged with the hollow biopsy needle, the cutting sheath having a cutting edge, wherein the biopsy needle unit is arranged on the tension slide, and wherein the electric power source is configured to rotate the cutting sheath to move the tension slide;
a vacuum pressure-generating device; and
a connection element connecting the biopsy needle unit and the vacuum pressure-generating device; and
a control panel attached to the housing, the control panel having a first control device configured to control the electric power source to position the tension slide in the cocked position, and the control panel having a second control device configured to release the releasable locking mechanism when the tension slide is in the cocked position such that the tension slide is moved by the first spring away from the cocked position.
1 Assignment
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Accused Products
Abstract
A biopsy device for taking tissue samples, includes a housing, a removable element and a control panel. The housing contains an electric power source and a tension slide connected to the power source. The tension slide may be brought into a cocked position against the action of a spring by the power source. The removable element is configured for insertion into the housing and includes a biopsy needle unit, a vacuum pressure-generating device and a control panel. The removable element may be provided as a sterile package unit. The biopsy needle unit can be arranged on the tension slide and includes a hollow biopsy needle with a sample removal chamber and a cutting sheath. The biopsy device can be held in one hand and is fully integrated with all components required to perform a vacuum biopsy such that no cables or lines are required to other external units.
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Citations
47 Claims
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1. A biopsy device for taking tissue samples, comprising:
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a housing containing an electric power source and a tension slide, wherein the tension slide is configured to be moved to a cocked position against the action of a first spring, the tension slide configured to be locked in the cocked position by a releasable locking mechanism; a removable element configured for insertion into the housing to couple the electric power source to the tension slide, comprising; a biopsy needle unit, comprising a hollow biopsy needle having a sample removal chamber, and a cutting sheath coaxially arranged with the hollow biopsy needle, the cutting sheath having a cutting edge, wherein the biopsy needle unit is arranged on the tension slide, and wherein the electric power source is configured to rotate the cutting sheath to move the tension slide; a vacuum pressure-generating device; and a connection element connecting the biopsy needle unit and the vacuum pressure-generating device; and a control panel attached to the housing, the control panel having a first control device configured to control the electric power source to position the tension slide in the cocked position, and the control panel having a second control device configured to release the releasable locking mechanism when the tension slide is in the cocked position such that the tension slide is moved by the first spring away from the cocked position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification