RU776U1 - Puncture biopsy device - Google Patents

Abstract

A puncture biopsy device comprising a body, a tubular knife with a mechanism for moving it, and a biopsy needle, characterized in that the tubular knife is equipped with a harpoon with lateral cutting edges, and the biopsy needle is made with a recess for placement of the harpoon.

Description

to application No. 5023617/14

Puncture Biopsy Devices

A useful model is related to medical equipment intended for collecting samples in biological tissues, namely oncology.

The closest technical solution to the invention is a device for puncture biopasia containing a body with a handle, a tubular nanoparticle with a movement mechanism and a biopaeyal needle with a harpoon and a biopsy specimen located inside it (I /.

However, this device © also does not provide reliable sampling.

The utility model solves the problem of increasing the reliability of material sampling for histological examination from soft tissue neoplasms, due to the fact that at the end of the tubular knife there is a harpoon with lateral cutting edges placed in the ethereal groove of the biopaeyal needle.

In FIG. I shows a device for a puncture biopsy general view; in FIG. 2 node I of FIG. I; in FIG. 3 is a view A of FIG. 2.

The puncture device contains a housing I, inside of which a sleeve 2 is placed on the thread at one end. In its central hole, on the thread, there is a biosafety needle 3 eo with a tubular knife 4 mounted on it with a harpoon b at the end. The cutting edges are made on the harpoon 6. The harpoon is placed in the groove 7 of the tip 8 of the biopaeye needle. Spring 10 is placed between the threaded needle washer 9 of the biosafety needle and the threaded baffle on the bi-needle needle, and the bi studs II are mounted on the thread at one end, passing in the holes on the partition of the split sleeve, and on the second end of the studs, a flange 12 is placed in the holes on the thread and secured with nuts 13, in the central hole of the flange on the thread © rod 14 with see fixed on it Oromo 15. At the second end of the rod 16. The handle made in the housing at the opposite end from the thread side is formed groove 17. On the axis 18 is mounted with the bracket 19 ryiagom 20, which push-button switch. On top of the bracket is placed a leaf spring 21 mounted on the device’s case / not shown conditionally /. At the second end of the threaded sleeve on the thread with a central hole for the tubular knife, a cap 22 is mounted on the thread.

Devices © are used as follows.

In the initial position, the tubular knife is under the action of the spring 10 and is held in the cocked position by the bracket 19 mounted on the latch 15: placed on the rod 14. Take the device by the body 1, puncture the tumor under the control of vision with the tip 8 of the biosafety needle 3, Press the button switch 20. The scuba 19. rotating around the axis 18 disengages from the latch 15, and the spring 10 unclenches presses on the support washer 9 of the tubular knife 4. The tubular knife moves relative to the biosafety needle and the tumor tissue is taken ani into the hollow internal volume, free from the end of the biosafety needle. Then the device is turned 180 ° on its axis. At this time, harpoon 5 cuts off a piece of tumor tissue, separating it from the total mass.

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After that, the uterus for housing I is removed. A force is then applied to the handle 16 along the si in the direction opposite to the puncture of the tumor. The rod 14, placed on the thread in the flange 12, moves the studs II fixed in it, and those in their turn move the puck washer 9 of the tubular knife 4. The spring 10 is compressed, the groove 19 engages with the latch 15. During the movement the tubular knife 4 relative to the biosafety needle 3, the end of the biosafety needle releases the bioptate from the end of the tubular knife. The device is easy to manufacture and reliable in operation. Its use always ensures the receipt of a sufficient amount of material for histological examination.

Description Writer

Claims (1)

A puncture biopsy device comprising a body, a tubular knife with a mechanism for moving it, and a biopsy needle, characterized in that the tubular knife is equipped with a harpoon with lateral cutting edges, and the biopsy needle is made with a recess for placement of the harpoon.