CN217040185U - Biopsy sampling cutter with adjustable sampling window size - Google Patents

Abstract

The utility model discloses a sample window adjustable size's biopsy sample cutter, including the sword pipe that has the puncture head, still include the outer tube and adjust the structure, first window has been seted up at the position that is close to the puncture head on the sword pipe, outer tube cooperation cover is in outside the sword pipe, the window regulation edge has on the outer tube, the window adjust the edge be used for with first window encloses into sample window, it is used for adjusting to adjust the structure the outer tube with the relative position of sword pipe makes the window adjust the edge with the relative position change of the profile of first window, and then adjusts sample window's size. The utility model discloses a biopsy sampling device realizes the regulation of sample window size through addding the outer tube, can improve the sample precision, and compares and set up the mode that the part adjusted sample window size in the sword pipe, the utility model discloses more be favorable to more audio-visual observation sample window's change in accommodation process.

Description

Biopsy sampling cutter with adjustable sampling window size

Technical Field

The utility model relates to a medical instrument especially relates to a sample window size adjustable biopsy sample cutter.

Background

The biopsy sampling cutter is provided with a sampling window at the position, close to the tip, of the cutter tube, when in sampling, tissues are sucked into the cutter tube through the sampling window, and a tubular cutter in the biopsy sampling needle cuts the tissues through axial movement in the cutter tube so as to realize sampling.

At present, only part of breast biopsy systems can realize the setting of the window opening size of a biopsy needle sampling groove, but only can adjust the window opening length by half or full, and the window opening size of a window cannot be finely adjusted according to the size of lesion tissues.

Disclosure of Invention

The utility model discloses a main aim at provides a sample window size adjustable gets biopsy sample cutter to more accurate sample.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

the utility model provides a sample window size adjustable biopsy sample cutter, includes the sword pipe that has the puncture head, its characterized in that: still include the outer tube and adjust the structure, first window has been seted up near the position of puncture head on the sword pipe, the outer tube cooperation cover is in outside the sword pipe, utensil window regulation edge on the outer tube, the window adjust the edge be used for with first window encloses into the sample window, it is used for adjusting to adjust the structure the outer tube with the relative position of sword pipe makes the window adjust the edge with the relative position change of the profile of first window, and then adjusts the size of sample window.

Optionally, the outer sleeve is movable along the axial direction of the knife tube, and the adjusting structure is used for driving the outer sleeve to move along the axial direction of the knife tube.

Optionally, the front end edge of the outer sleeve is the window adjusting edge.

Optionally, a second window is disposed on the outer sleeve, the second window is correspondingly located outside the first window, and an overlapping region of the second window and the first window forms the sampling window.

Optionally, the length of the second window in the radial direction is greater than or equal to the length of the first window in the radial direction, and the window adjusting edge is a front end contour line or a rear end contour line of the second window.

Optionally, the biopsy sampling cutter further comprises a cutter tube seat, the cutter tube is arranged on the cutter tube seat, the adjusting structure comprises an adjusting sleeve, the outer sleeve is arranged on the adjusting sleeve, and the adjusting sleeve is sleeved outside the cutter tube seat through thread matching.

Optionally, the front end surface on the outer sleeve is an inclined surface, and the adjusting structure is used for driving the outer sleeve to rotate relative to the cutter tube.

Optionally, the biopsy sampling tool further includes a knife tube seat, the knife tube is disposed on the knife tube seat, the adjusting structure includes an adjusting sleeve capable of rotating relative to the knife tube seat and a locking structure for locking the outer sleeve on the knife tube seat, and the outer sleeve is disposed on the adjusting sleeve.

Optionally, the locking structure includes a locking pin disposed on the tool tube seat and a locking groove for the locking pin to be squeezed into, the locking groove is disposed on the adjustment sleeve, the locking pin has an arc end surface for contacting with the locking pin, a mounting hole for mounting the locking pin is disposed on the tool tube seat, and an elastic member for driving the locking pin to move outward is disposed between the bottom of the mounting hole and the locking pin;

the locking device comprises a locking device, a locking pin and a locking groove, wherein the locking pin is provided with a plurality of locking grooves, and the locking grooves are distributed along the circumferential direction;

or

The locking device comprises a locking pin, a locking groove and a locking groove, wherein the number of the locking pin is one, the number of the locking grooves is multiple, and the locking grooves are distributed along the axial direction; or

The locking pins and the locking grooves are multiple in number and are uniformly distributed along the axial direction.

Optionally, the outer diameter of the front end of the outer sleeve is gradually increased along the axial direction.

The utility model discloses a biopsy sampling device realizes the regulation of sample window size through addding the outer tube, can improve the sample precision, and compares and set up the mode that the part adjusted sample window size in the sword pipe, the utility model discloses more be favorable to more audio-visual observation sample window's change in accommodation process.

Drawings

FIG. 1 is a schematic view of an exemplary position relationship between a knife tube and an outer sleeve according to the present invention;

FIG. 2 is a schematic view of another exemplary relationship between the cutting tube and the outer sleeve according to the present invention;

FIG. 3 is a schematic view of another exemplary relationship between the middle blade tube and the outer sleeve according to the present invention;

fig. 4 is a schematic diagram illustrating an exemplary structure of the present invention;

fig. 5 is a schematic diagram of another exemplary structure of the present invention.

The description of reference numerals in the examples includes:

a sampling window A;

a knife tube 100, a first window 101, a puncture head 102,

An outer sleeve 200, a window adjusting edge 201, a second window 210,

A knife rest 320, a locking pin 311, an elastic component 312, an adjusting sleeve 310 and a locking groove 321.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, like numbering represents like elements throughout.

In each of the following embodiments, the direction qualifier "front" refers to a direction toward the puncture head of the biopsy needle in a use state, and "rear" refers to a direction toward the grip portion.

With reference to fig. 1 to 5, the utility model discloses a biopsy sampling cutter, including the sword pipe 100 that has puncture head 102, still include outer tube 200 and regulation structure, first window 101 has been seted up near puncture head 102's position on sword pipe 100, and outer tube 200 cooperation cover has window on the outer tube 200 and adjusts edge 201, and this window is adjusted edge 201 and is used for enclosing into sampling window a with first window 101, adjusts the structure be used for adjusting outer tube 200 with the relative position of sword pipe 100, make window adjust the edge with the relative position change of the profile of first window, and then adjust the size of sampling window.

The utility model discloses a biopsy sampling device realizes the regulation of sample window size through addding the outer tube, can improve the sample precision, and compares and set up the mode that the part adjusted sample window size in the sword pipe, the utility model discloses more be favorable to more audio-visual observation sample window's change in accommodation process.

In some embodiments, the outer diameter of the front end of the outer sleeve 200 is gradually increased (not shown) along the axial direction, which facilitates the smooth penetration of the outer sleeve 200 into the tissue along with the knife tube 100.

In practical implementation, the relative position adjustment between the outer sleeve 200 and the knife tube 100 may be axial position adjustment, relative rotation angle adjustment, or a combination of the two, and in the following embodiments, the two manners of axial position adjustment and rotation angle adjustment are exemplarily described:

in some embodiments, the axial position of the outer sleeve along the axial direction of the knife tube is adjustable, and the adjusting structure is used for driving the outer sleeve 200 to move along the axial direction of the knife tube 100. For example: with combined reference to fig. 1, 2 and 4, the biopsy sampling tool further comprises a tool post 320, the tool tube 100 is disposed on the tool post 320, the adjusting structure comprises an adjusting sleeve 310, the outer sleeve 200 is disposed on the adjusting sleeve 310, and the adjusting sleeve 310 is sleeved outside the tool post 320 through a screw-thread fit.

At this time, only by rotating the adjusting sleeve 310, the adjusting sleeve 310 can generate axial displacement relative to the knife tube 100, thereby realizing the adjustment of the size of the sampling window. Of course, in actual implementation, the position of the outer sleeve 200 in the axial direction may be adjusted in other manners.

In some embodiments, referring to fig. 1, the leading edge of the outer sleeve 200 is the window adjustment edge 201. In other embodiments, referring to fig. 2, a second window 210 is disposed on the outer sleeve 200, the second window 210 is correspondingly disposed outside the first window 101, and an overlapping region of the second window 210 and the first window 101 forms the sampling window, in an actual implementation, when the second window 210 is disposed, a length of the second window 210 in a radial direction is preferably greater than or equal to a length of the first window 101 in the radial direction, and at this time, the window adjusting edge 201 for forming the sampling window is a front end contour line or a rear end contour line of the second window 210.

In some embodiments, referring to fig. 3 and 5, the front end surface of the outer sleeve is an inclined surface, and the adjusting structure is used to drive the outer sleeve 200 to rotate relative to the knife tube 100, and during the adjustment, only the outer sleeve 200 needs to rotate relative to the knife tube 100.

Specifically, in some embodiments, referring to fig. 5, the biopsy sampling tool further includes a tool holder 320, the tool tube 100 is disposed on the tool holder 320, the adjusting structure includes an adjusting sleeve 310 rotatable with respect to the tool holder 320 and a locking structure for locking the outer sleeve 200 to the tool holder 320, the size of the sampling window can be adjusted by rotating the adjusting sleeve 310 during adjustment, and the locking structure locks the locking sleeve after the adjustment is completed.

For example, in fig. 5, the locking structure includes a locking pin 311 disposed on a knife tube holder 320 and a locking groove 321 for the locking pin 311 to be squeezed into, the locking groove 321 is disposed on the adjusting sleeve 310, the locking pin 311 has a circular arc end surface for contacting with the locking pin 311, a mounting hole for mounting the locking pin 311 is disposed on the knife tube holder 320, and an elastic member 312 for driving the locking pin 311 to move outwards is disposed between the bottom of the mounting hole and the locking pin 311; the number of the locking pins 311 is plural, and each locking pin 311 is distributed along the circumferential direction, and the number of the locking grooves 321 is one.

At this time, the adjustment of the size of the sampling window has a plurality of gears with different sizes, each gear corresponds to one locking pin 311, during adjustment, the adjusting sleeve 310 is rotated, the locking pin 311 corresponding to one gear is clamped into the locking groove 321, if the gear is not the target gear, the adjusting sleeve 310 is continuously rotated, so that the locking pin 311 is extruded out of the locking groove 321, and the adjusting sleeve 310 is continuously rotated until the locking pin 311 corresponding to the target gear is clamped into the locking groove 321. Of course, in an actual implementation process, the number of the locking pins 311 may be set to be one, and the number of the locking grooves 321 may be set to be multiple, so that the locking grooves 321 are distributed along the axial direction; the number of the locking pins 311 and the locking grooves 321 may be set to be plural and uniformly distributed along the axial direction.

In some embodiments, referring to FIG. 3, the leading edge of the outer sleeve 200 is a window adjustment edge 201.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims (10)

1. The utility model provides a biopsy sampling cutter of sampling window size adjustable, includes the sword pipe that has the puncture head, its characterized in that: still include the outer tube and adjust the structure, the position that is close to the puncture head on the sword pipe has seted up first window, the outer tube cooperation cover is in outside the sword pipe, the window regulation edge has on the outer tube, the window adjust the edge be used for with first window encloses into the sample window, it is used for adjusting to adjust the structure the outer tube with the relative position of sword pipe makes the window adjust the edge with the relative position change of the profile of first window, and then adjusts the size of sample window.

2. The biopsy sampling cutter of claim 1, wherein: the outer sleeve is movable along the axial direction of the cutter tube, and the adjusting structure is used for driving the outer sleeve to move along the axial direction of the cutter tube.

3. The biopsy sampling cutter of claim 2, wherein: the front end edge of the outer sleeve is the window adjusting edge.

4. The biopsy sampling cutter of claim 2, wherein: the outer sleeve is provided with a second window, the second window is correspondingly positioned outside the first window, and the overlapping area of the second window and the first window forms the sampling window.

5. The biopsy sampling cutter of claim 4, wherein: the length of the second window in the radial direction is greater than or equal to the length of the first window in the radial direction, and the window adjusting edge is a front end contour line or a rear end contour line of the second window.

6. The biopsy sampling cutter of claim 2, wherein: the adjustable knife rest is characterized by further comprising a knife rest base, the knife rest is arranged on the knife rest base, the adjusting structure comprises an adjusting sleeve, the outer sleeve is arranged on the adjusting sleeve, and the adjusting sleeve is sleeved outside the knife rest base in a threaded matching mode.

7. The biopsy sampling cutter of claim 1, wherein: the front end face of the outer sleeve is an inclined plane, and the adjusting structure is used for driving the outer sleeve to rotate relative to the cutter tube.

8. The biopsy sampling cutter of claim 7, wherein: the adjustable knife rest is characterized by further comprising a knife tube seat, the knife tube is arranged on the knife tube seat, the adjusting structure comprises an adjusting sleeve and a locking structure, the adjusting sleeve can rotate relative to the knife tube seat, the locking structure is used for locking the outer sleeve on the knife tube seat, and the outer sleeve is arranged on the adjusting sleeve.

9. The biopsy sampling cutter of claim 8, wherein: the locking structure comprises a locking pin arranged on the knife tube seat and a locking groove for the locking pin to be squeezed into, the locking groove is arranged on the adjusting sleeve, the locking pin is provided with an arc end face for contacting with the locking pin, the knife tube seat is provided with an installation hole for installing the locking pin, and an elastic piece for driving the locking pin to move outwards is arranged between the bottom of the installation hole and the locking pin;

the locking device comprises a locking device, a locking pin and a locking groove, wherein the locking pin is provided with a plurality of locking grooves, and the locking grooves are distributed along the circumferential direction;

or

The locking device comprises a locking pin, a locking groove and a locking groove, wherein the number of the locking pin is one, the number of the locking grooves is multiple, and the locking grooves are distributed along the axial direction;

or

The locking pins and the locking grooves are multiple in number and are uniformly distributed along the axial direction.

10. The biopsy sampling cutter of claim 1, wherein: the outer diameter of the front end of the outer sleeve is gradually increased along the axial direction.

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