Biopsy instrument
First Claim
1. A biopsy instrument for obtaining a tissue sample from a target organ, said target organ being a soft tissue organ or a bone organ, said biopsy instrument comprising:
- a biopsy needle; and
a biopsy gun having a firing mechanism for firing said biopsy needle with a minimum force for striking and penetrating said target tissue organ, a cradle securely holding said biopsy needle and an attached disposable syringe, said disposable syringe comprising a housing and a plunger, and a triggering mechanism that when actuated, actuates said firing mechanism causing said cradle with said needle and attached syringe to fire forward with a sufficient force for penetrating the target tissue organ, a first tissue sample being cored in said needle and said disposable syringe being used to obtain a second tissue sample up through said biopsy needle using a vacuum created in said disposable syringe when said plunger is maintained in a rearward position while said syringe is fired forwards.
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Accused Products
Abstract
A biopsy instrument which can be used to take a bone biopsy sample or a soft tissue biopsy sample. The biopsy instrument includes a biopsy needle and a biopsy gun. The biopsy gun includes a firing mechanism for firing the biopsy needle with a minimum force for striking and penetrating the target tissue organ; a cradle that securely holds the biopsy needle with an attached disposable syringe having a plunger; and a triggering mechanism. In operation, the triggering mechanism actuates the firing mechanism causing the cradle together with the needle and the attached syringe to fire forward with a sufficient force such that the needle penetrates the target tissue organ causing a first a first tissue sample to be cored in the needle. The disposable syringe can then be used to obtain a second tissue sample up through the biopsy needle using a vacuum created in the disposable syringe when the plunger is maintained in a rearward position while the syringe fires forward. In a bone biopsy procedure, the first tissue sample is a bone sample and the second tissue sample is a liquid bone marrow sample.
573 Citations
13 Claims
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1. A biopsy instrument for obtaining a tissue sample from a target organ, said target organ being a soft tissue organ or a bone organ, said biopsy instrument comprising:
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a biopsy needle; and a biopsy gun having a firing mechanism for firing said biopsy needle with a minimum force for striking and penetrating said target tissue organ, a cradle securely holding said biopsy needle and an attached disposable syringe, said disposable syringe comprising a housing and a plunger, and a triggering mechanism that when actuated, actuates said firing mechanism causing said cradle with said needle and attached syringe to fire forward with a sufficient force for penetrating the target tissue organ, a first tissue sample being cored in said needle and said disposable syringe being used to obtain a second tissue sample up through said biopsy needle using a vacuum created in said disposable syringe when said plunger is maintained in a rearward position while said syringe is fired forwards. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hand held and operated, re-usable biopsy gun to be used with a biopsy needle to obtain a tissue sample from a target tissue organ, said target organ being a soft tissue organ or a bone organ, said biopsy gun comprising:
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a firing mechanism for firing a biopsy needle with a minimum force for striking and penetrating said target tissue organ; a triggering mechanism; a disposable syringe having a plunger; a cradle for holding said biopsy needle and said disposable syringe, wherein said disposable syringe is attached to said needle, such that on actuation of said triggering mechanism, said firing mechanism is actuated causing said cradle together with said biopsy needle and attached disposable syringe to fire forwards in a forward stroke to permit said biopsy needle to strike a target tissue organ, causing a first tissue sample to be cored off into said needle and said syringe to obtain a second tissue sample using a vacuum created when said plunger is maintained in a rearward position while said syringe is fired forward. - View Dependent Claims (12)
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13. A hand held and operated, re-usable biopsy gun according 11, which is powered by a rechargeable battery.
Specification