CN218009799U

CN218009799U - Biopsy device and biopsy ablation device

Info

Publication number: CN218009799U
Application number: CN202220736651.7U
Authority: CN
Inventors: 赖燊
Original assignee: Shenzhen Niumai Technology Co ltd
Current assignee: Shenzhen Niumai Technology Co ltd
Priority date: 2021-05-21
Filing date: 2022-03-30
Publication date: 2022-12-13
Anticipated expiration: 2032-03-30
Also published as: CN217611354U; CN217853069U; CN218009939U; CN216628691U; CN218009937U; CN216628692U

Abstract

The utility model discloses a biopsy device and biopsy ablation device, the ablation device comprises an ablation needle, a first sleeve and a second handle part, the first sleeve is made of insulating material, the second sleeve is made of conductive material, the ablation needle and the first sleeve are both connected with the second handle part, the first sleeve is arranged outside the ablation needle, the diameter of the second sleeve is larger than that of the first sleeve, the second sleeve can be matched with the first sleeve, a sliding cavity is formed in the second handle part in a hollow manner, an adjusting part is arranged in the sliding cavity, and the first sleeve is fixedly connected with the adjusting part; and a second connecting part is arranged on the second handle part. The biopsy ablation device has more functions and can adapt to the actual demand in the process of tumor treatment.

Description

Biopsy device and biopsy ablation device

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to biopsy device and biopsy ablation device.

Background

Biopsy needles are a commonly used medical instrument that samples human tissue, are a commonly used tool in clinical diagnosis, and are more commonly used in the detection of tumors.

In use, the biopsy needle is inserted into the tissue of the human body and the tissue of the human body is sampled by relative movement between the extraction needle and the second cannula of the biopsy needle.

However, the existing biopsy needle has single function, can only be used for sampling human tissues, and cannot meet the requirements of clinical multiple functions.

Disclosure of Invention

An object of the utility model is to provide a biopsy device and biopsy ablation device, the biopsy ablation device function is more, can adapt to the actual demand of tumour treatment in-process.

The utility model provides a biopsy device, which comprises an extraction needle, an extraction sleeve and a first handle part,

the extraction sleeve is sleeved outside the extraction needle in a sliding manner, the extraction sleeve is fixedly connected with the first handle part, an upper chamber is arranged in the first handle part along the longitudinal direction, a sliding part and an upper chamber part are movably arranged in the upper chamber, and the extraction needle and the upper chamber part are both connected with the sliding part;

a first connecting portion is provided at the front end of the first handle portion.

In one embodiment, the first handle comprises an outer shell, an elastic member, the slider and the loading member are arranged in the outer shell, the elastic member is arranged between the slider and the outer shell, a locking part is arranged in the longitudinal sliding direction of the slider and the outer shell, and an unlocking part is arranged on the loading member and corresponds to the locking part.

In one embodiment, the outer shell comprises an upper shell and a base, the upper shell is fixedly connected with the base, an elastic locking piece is arranged on the base, the elastic locking piece is provided with a locking platform, an unlocking inclined plane and a guiding inclined plane, and the sliding piece is provided with a locking part, a sliding piece and a needle body connecting part; the locking part corresponds to the unlocking inclined surface and the locking platform, when the locking part is matched with the locking platform, the sliding part is locked, and when the unlocking part is matched with the unlocking inclined surface, the sliding part is unlocked.

In one embodiment, a first sliding groove and a second sliding groove are arranged on the base, sliding pieces are arranged on two sides of the sliding piece, the sliding piece is matched with the first sliding groove through the sliding pieces on the two sides of the sliding piece, a locking part is arranged at the bottom of the sliding piece, a needle body connecting part is arranged at the upper part of the sliding piece, the extraction needle is fixedly connected with the needle body connecting part, and a tail hole is arranged at the rear end of the sliding piece; the loading piece comprises a pull handle, the pull handle is fixedly connected with the rear end of the extraction needle, a connecting rod is arranged at the front end of the pull handle and penetrates into the second sliding groove, a pull hook is arranged at the front end of the connecting rod, and the pull hook hooks the tail hole of the sliding piece.

In one embodiment, a hinge shaft is provided at the front end of the first handle portion, and a front cover is movably provided at the front end of the first handle portion by the hinge shaft, and covers the first connecting portion.

The utility model also provides a biopsy ablation device, which comprises an ablation needle, a first sleeve, a second handle part and the biopsy device,

the first sleeve is made of insulating material, the ablation needle is made of conductive material,

the ablation needle and the first sleeve are both connected with the second handle part, the first sleeve is sleeved outside the ablation needle,

the second handle part is hollow to form a sliding cavity, an adjusting part is arranged in the sliding cavity, and the first sleeve is fixedly connected with the adjusting part;

and a second connecting part is arranged on the second handle part.

In one embodiment, the extraction sleeve comprises a second sleeve and a third sleeve, the second sleeve is made of a conductive material, the third sleeve is made of an insulating material, the rear ends of the second sleeve and the third sleeve are connected with the connecting end, the third sleeve is sleeved outside the second sleeve, and the front end of the second sleeve is exposed relative to the third sleeve; a third connecting part is arranged on the connecting end head, and the third connecting part can be detachably connected with the first connecting part and the second connecting part respectively;

the diameter of the second sleeve is larger than that of the first sleeve, and the second sleeve can be matched with the first sleeve.

In one embodiment, a sliding groove is formed in the second handle, at least two positioning notches are formed in the sliding groove in the longitudinal direction, the adjusting piece comprises a sliding block and a button, the sliding block is fixedly connected with the button, a positioning elastic sheet is arranged on the button, the sliding block is arranged in the sliding cavity, the positioning elastic sheet is matched with the positioning notches, and the button extends out of the sliding groove.

In one embodiment, the ablation needle body is made of conductive material, a conductive layer is formed on the outer surface of the needle body, the handle is made of insulating material, and an insulating film layer is arranged on the outer surface of the needle body and divides the conductive layer into at least two conductive sections.

In one embodiment, the second handle comprises a handle body and a detaching head, the handle body comprises a front handle part and a rear handle part, the handle body is connected with the detaching head, the front handle part and the rear handle part are detachably connected, a conductive member is arranged in the handle body, and the ablation needle is inserted into the conductive member and is conductively connected with the conductive member.

The utility model provides a technical scheme has following advantage and effect:

when carrying out the biopsy, can locate the outside of drawing the needle with this extraction sleeve pipe cover, load the piece through loading and carry out the loading to the slider, can draw the sample to human tissue after loading and carry out the biopsy operation, on the other hand, can also realize detachable being connected through the first connecting portion that sets up on the first stalk portion and other mechanisms, realize more functions to the complicated demand of adaptation clinical.

Drawings

Fig. 1 is an external view of the biopsy ablation device in an embodiment of the invention;

fig. 2 is a cross-sectional view of the biopsy ablation device in an embodiment of the present invention;

fig. 3 is an exploded view of the biopsy ablation device in an embodiment of the present invention;

fig. 4 is a diagram illustrating a first state of use of the biopsy ablation device, in accordance with an embodiment of the present invention;

fig. 5 is a diagram illustrating a second state of use of the biopsy ablation device, in accordance with an embodiment of the present invention;

FIG. 6 is an enlarged cross-sectional view of the extraction needle mated with the second cannula in an embodiment of the invention;

FIG. 7 is an enlarged view of a portion of FIG. 3;

fig. 8 is a perspective view of the base in the embodiment of the present invention;

fig. 9 is a top view of the sliding member in the embodiment of the present invention;

fig. 10 is a side view of the sliding member in the embodiment of the present invention;

fig. 11 is a bottom view of the sliding member in an embodiment of the present invention;

FIG. 12 is a side view of the loading member in an embodiment of the invention;

description of the reference numerals:

111. a first sleeve, 112, a second sleeve, 113, a third sleeve, 13, an ablation needle, 131, an insulating film layer, 132, a conductive segment,

23. a second handle part 2301, a first lead wire 2302, a second lead wire 232, a front handle part 233, a rear handle part 234, a dismounting head 24, a conductive piece,

31. a buckle bulge 32, a buckle gap 33, a positioning head 34, an insertion opening,

41. a sliding cavity, 42, an adjusting piece, 421, a sliding block, 422, a button, 43, a positioning elastic sheet, 44, a positioning notch, 45 and a sliding groove,

51. the first tip portion, 52, the extraction recess portion,

70. a connecting end head, 71, an extraction needle,

80. a first handle part 82, an upper shell 83, a base 831, an elastic locking piece 8311, a locking platform 8312, an unlocking inclined plane 8313, a guiding inclined plane 8322, a first sliding chute 8323, a second sliding chute,

832. annular ear 84, front cover 811, hinge axis,

85. a slider 851, a locking part 852, a slide sheet 853, a needle body connecting part 854, a pull hole,

86. a loading piece 861, a pull handle, 862, a connecting rod 863, an unlocking part 864 and a pull hook,

87. elastic component, 871, elasticity slide tube, 872, spacing post.

Detailed Description

In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.

As used herein, "first and second" \ 8230 "are used unless otherwise indicated or defined and are used merely to distinguish between names and do not denote any particular quantity or order.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.

It should be noted that "fixed to" or "connected to" in this document may be directly fixed to or connected to one element or may be indirectly fixed to or connected to one element.

As shown in fig. 1 to 12, the biopsy ablation device includes a second handle portion 23, a first handle portion 80, an extraction needle 71, an ablation needle 13, a first sleeve 111, an extraction sleeve (wherein the extraction sleeve includes a second sleeve 112 and a third sleeve 113), and a connection terminal 70, where the first sleeve 111 and the third sleeve 113 are made of an insulating material, the ablation needle 13 and the second sleeve 112 are made of a conductive material, the ablation needle 13 and the first sleeve 111 are both connected to the second handle portion 23, the first sleeve 111 is sleeved outside the ablation needle 13, rear ends of the second sleeve 112 and the third sleeve 113 are connected to the connection terminal 70, the third sleeve 113 is sleeved outside the second sleeve 112, and a front end of the second sleeve 112 is exposed with respect to the third sleeve 113; the diameter of the second sleeve 112 is larger than that of the first sleeve 111, and the second sleeve 112 can be matched with the first sleeve 111; a third connection part is arranged on the connection end head 70, and a second connection part is arranged on the second handle part 23; the third connecting portion can be detachably connected with the second connecting portion. The second sleeve 112 is slidably sleeved outside the extraction needle 71 and is matched with the extraction needle 71, the first handle part 80 is arranged at the rear end of the extraction needle 71, a first connecting part is arranged on the first handle part 80, and a second connecting part is arranged on the second handle part 23; the third connecting portion can be detachably connected with the first connecting portion.

The specific connection structure is as follows:

the second handle part 23 comprises a handle main body and a detaching head 234, the handle main body comprises a front handle part 232 and a rear handle part 233, the handle main body is connected with the detaching head 234, the front handle part 232 and the rear handle part 233 are detachably connected, a conductive piece 24 is arranged in the handle main body, and the ablation needle 13 is inserted into the conductive piece 24 and is conductively connected with the conductive piece 24. At least two buckling protrusions 31 are arranged on the connecting end head 70, and the third connecting part is the buckling protrusion 31; at least two buckling notches 32 are arranged on the first handle part 80, the first connecting part is the buckling notch 32, and the buckling protrusions 31 are matched with the buckling notches 32; and the second handle part 23 is provided with at least two buckling notches 32, the second connecting part is the buckling notch 32, and the buckling protrusion 31 is matched with the buckling notch 32.

In this embodiment, the first sleeve 111 is sleeved outside the ablation needle 13, the third sleeve 113 is sleeved outside the second sleeve 112 to form an extraction sleeve, the slider 85 is loaded through the loading part 86, biopsy operation can be performed on a sample extracted from a human tissue after loading, the extraction sleeve is left in the human tissue, and after extraction of the human tissue is completed, the ablation needle 13 (and the first sleeve 111 thereof) is inserted into the second sleeve 112 of the extraction sleeve, the third connecting part is connected with the second connecting part, the ablation needle 13 serves as a first electrode of the ablation device, and the second sleeve 112 serves as a second electrode of the ablation device, so that a bipolar ablation structure of the ablation device is formed; when the ablation needle 13 can be drawn out of the second sleeve 112 after the third connecting part and the second connecting part are detached, the second sleeve 112 can be connected with other structures, so that the ablation device has more functions to meet the complex requirements in the clinical treatment process.

The detachable connection between the connection end 70 and the first handle portion 80 can be realized through the matching between the buckle protrusion 31 and the buckle notch 32, after the positioning head 33 is arranged at the rear end of the connection end 70, when the detachable connection is carried out, the positioning head 33 is clamped into the insertion hole 34, so that the connection and the fixation between the connection end 70 and the first handle portion are more reliable.

The body of the ablation needle 13 is made of a conductive material and forms a conductive layer on the outer surface of the body, the handle is made of an insulating material, and an insulating film 131 is arranged on the outer surface of the body, and the insulating film 131 divides the conductive layer into at least two conductive segments 132. When the electric field pulse ablation is carried out, each conductive segment 132 forms a respective ablation electric field respectively, the ablation area to be ablated is divided through each separated ablation electric field, the defect caused by the fact that the ablation area is too large is avoided, the temperature rise of the ablation area is avoided, the ablation area is easier to control, the damage to normal human body tissues is reduced, when the large tumor is ablated, the needle withdrawing is not needed, the layout is carried out again, the transfer of tumor cells is reduced, and the risk of operation is greatly reduced.

A first lead wire 2301 and a second lead wire 2302 are disposed at the rear end of the second handle 23, the first lead wire 2301 is connected to the ablation needle 13, and the second lead wire 2302 is connected to the second cannula 112. The second stem 23 may be supplied with high-voltage pulse power through the first lead 2301.

The front end of the extraction needle 71 is provided with a first sharp part 51, the extraction needle 71 is provided with an extraction concave part 52, the extraction concave part 52 is positioned at the rear side position of the front end, and when the extraction needle 71 is in sliding fit with the second sleeve 112, the second sleeve 112 closes or opens the extraction concave part 52.

The second handle part 23 is hollow to form a sliding cavity 41, an adjusting piece 42 is arranged in the sliding cavity 41, the adjusting piece 42 comprises a sliding block 421 and a button 422, and the sliding block 421 is fixedly connected with the button 422; the ablation needle 13 is fixedly connected with the adjusting member 42, the second handle 23 is provided with a sliding groove 45, the slider 421 is arranged in the sliding cavity 41, and the button 422 extends out from the sliding groove 45. At least two positioning notches 44 are arranged in the longitudinal direction of the second handle part 23, a positioning elastic sheet 43 is arranged on the adjusting piece 42, and the positioning elastic sheet 43 is matched with the positioning notches 44. In this embodiment, the exposed length of the ablation needle 13 can be adjusted by adjusting the longitudinal position of the adjustment member 42. After the position is adjusted, the positioning elastic sheet 43 is loosened and positioned through the positioning notch 44, so that the ablation needle 13 is prevented from randomly and longitudinally moving.

The first handle portion 80 comprises an outer shell, a sliding member 85, an elastic member 87, a loading member 86 and a front cover 84, wherein a hinge shaft 811 is arranged on the outer shell, and the front cover 84 is movably arranged at the front end of the outer shell through the hinge shaft 811; the outer shell comprises an upper shell 82 and a base 83, a sliding piece 85 is arranged on the outer shell and can be matched with the outer shell in a sliding way, the extraction needle 71 is fixedly connected with the sliding piece 85 and an upper chamber piece 86 at the same time, an elastic piece 87 is arranged between the sliding piece 85 and the outer shell, the front end of the elastic piece is limited by a limiting column 872 on the sliding piece 85, the rear end of the elastic piece is limited by an elastic sliding pipe 871, a locking part 851 is arranged in the longitudinal sliding direction of the sliding piece 85 and the outer shell, an unlocking part 863 is arranged on the upper chamber piece 86, and the unlocking part 863 corresponds to the locking part 851; the upper housing 82 is fixedly connected with the base 83, the base 83 is provided with an elastic locking piece 831, the elastic locking piece 831 is provided with a locking platform 8311, an unlocking inclined plane 8312 and a guiding inclined plane 8313, and the sliding piece 85 is provided with a locking part 851, a sliding sheet 852 and a needle body connecting part 853; the slider 85 is provided with sliding pieces 852 on both sides, the slider 85 is matched with the first sliding grooves 8322 through the sliding pieces 852 on both sides, so that the slider 85 can slide in the base 83, the bottom of the slider 85 is provided with a locking part 851, the locking part 851 corresponds to the unlocking inclined surface 8312 and the locking platform 8311, when the slider 85 slides, the locking part 851 can act on the guide inclined surface 8313, the elastic locking piece 831 slightly deforms, and when the locking part 851 slides to the position of the locking platform 8311, the slider 85 is locked. The upper part of the sliding part 85 is provided with a needle body connecting part 853, the extraction needle 71 is fixedly connected with the needle body connecting part 853, and the rear end of the sliding part 85 is provided with a tail hole; the upper chamber 86 includes a handle 861, the handle 861 is fixedly connected to the rear end of the extraction needle 71, a connecting rod 862 is disposed at the front end of the handle 861, the connecting rod 862 penetrates the second sliding slot 8323, and a hook 864 is disposed at the front end of the connecting rod 862 and hooks the pull hole 854 of the slider 85. The slider 85 can be pulled by the pull handle 861, and when the slider 85 overcomes the elastic force of the elastic member 87, the slider 85 moves backwards and is locked, and the loading purpose is achieved. When the handle 861 is pushed forward, the unlocking portion 863 at the lower portion of the hook 864 is engaged with the unlocking slant surface 8312, and the elastic locking member 831 is pushed downward, so that the locking portion 851 of the slider 85 is disengaged from the locking portion 8311, and the slider 85 is unlocked.

When the biopsy device is operated, an operator holds the annular ear 832 with one hand, pulls the pull handle 861 of the upper chamber piece 86 with the other hand, the upper chamber piece 86 pulls the sliding piece 85, the extraction needle 71 connected with the sliding piece 85 and moves backwards against the elastic force of the elastic piece 87, when the sliding piece 85 moves to the set position, the position of the sliding piece 85 is locked, at this time, the extraction concave part 52 of the extraction needle 71 is closed by the outer sleeve, the front end of the biopsy ablation device is inserted into the human tissue, the upper chamber piece 86 is pushed forwards to enable the extraction needle 71 to reach the extraction position, the extraction concave part 52 is exposed, when the upper chamber piece 86 is pushed to a certain position, the unlocking part 863 at the front end of the upper chamber piece 86 unlocks the sliding piece 85, the sliding piece 85 moves backwards quickly under the action of the elastic piece 87 and drives the extraction needle 71 to move backwards quickly, the human tissue in the extraction concave part 52 is kept in the outer sleeve through the cutting action of the outer sleeve, and the biopsy ablation device is extracted human tissue can be detected pathologically.

The biopsy ablation device of the present embodiment can be used as a biopsy extraction device for extracting human tissue for biopsy (as shown in fig. 4); the connecting tip 70 at the rear end of the second sleeve 112 and the third sleeve 113 is connected with the second handle 23 at the rear end of the ablation needle 13, and at this time, the second sleeve 112 and the third sleeve 113 are matched with the ablation needle 13, and the biopsy ablation device can be used as an ablation device for ablating a specific part (such as a tumor) of human tissue (as shown in fig. 5).

The purpose of the above embodiments is to reproduce and derive the technical solutions of the present invention exemplarily, and to describe the technical solutions, the purposes and the effects of the present invention completely, which aims to make the public understand the disclosure of the present invention more thoroughly and comprehensively, and not to limit the protection scope of the present invention.

The above examples are not intended to be exhaustive list of the present invention, and there may be many other embodiments not listed. Any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.

Claims

1. A biopsy device comprising an extraction needle, an extraction cannula and a first handle,

2. The biopsy apparatus of claim 1, wherein the first handle comprises an outer housing, an elastic member disposed in the outer housing, the slider, and the loading member, the elastic member being disposed between the slider and the outer housing, a locking portion being disposed in a longitudinal sliding direction of the slider and the outer housing, and an unlocking portion being disposed in the loading member, the unlocking portion corresponding to the locking portion.

3. The biopsy apparatus as claimed in claim 2, wherein the outer housing comprises an upper housing and a base, the upper housing is fixedly connected with the base, the base is provided with an elastic locking member, the elastic locking member is provided with a locking platform, an unlocking inclined plane and a guiding inclined plane, and the sliding member is provided with a locking part, a sliding piece and a needle body connecting part; the locking portion corresponds to the unlocking inclined surface and the locking platform, the sliding piece is locked when the locking portion is matched with the locking platform, and the sliding piece is unlocked when the unlocking portion is matched with the unlocking inclined surface.

4. The biopsy apparatus as claimed in claim 3, wherein a first sliding groove and a second sliding groove are formed on the base, a sliding piece is provided on both sides of the sliding piece, the sliding piece is engaged with the first sliding groove through the sliding piece on both sides, a locking portion is provided on the bottom of the sliding piece, a needle body connecting portion is provided on the upper portion of the sliding piece, the extraction needle is fixedly connected with the needle body connecting portion, and a tail hole is provided on the rear end of the sliding piece; the loading piece comprises a pull handle, the pull handle is fixedly connected with the rear end of the extraction needle, a connecting rod is arranged at the front end of the pull handle, the connecting rod penetrates into the second sliding groove, a pull hook is arranged at the front end of the connecting rod, and the pull hook hooks the tail hole of the sliding piece.

5. The biopsy apparatus of any one of claims 1 to 4, wherein a hinge shaft is provided at a front end of the first handle portion, and a front cover is movably provided at the front end of the first handle portion by the hinge shaft, the front cover covering the first connecting portion.

6. A biopsy ablation device comprising an ablation needle, a first cannula and a second handle, and a biopsy device according to any one of claims 1 to 5,

and a second connecting part is arranged on the second handle part.

7. The biopsy ablation device of claim 6,

the extraction sleeve comprises a second sleeve and a third sleeve, the second sleeve is made of a conductive material, the third sleeve is made of an insulating material, the rear ends of the second sleeve and the third sleeve are connected with the connecting end, the third sleeve is sleeved outside the second sleeve, and the front end of the second sleeve is exposed relative to the third sleeve; a third connecting part is arranged on the connecting end and can be detachably connected with the first connecting part and the second connecting part respectively;

8. The biopsy ablation device of claim 6,

the second handle is provided with a sliding groove, at least two positioning notches are arranged on the sliding groove along the longitudinal direction, the adjusting piece comprises a sliding block and a button, the sliding block is fixedly connected with the button, a positioning elastic sheet is arranged on the button, the sliding block is arranged in the sliding cavity, the positioning elastic sheet is matched with the positioning notches, and the button extends out of the sliding groove.

9. The biopsy ablation device of claim 6, wherein the body of the ablation needle is formed of an electrically conductive material and an electrically conductive layer is formed on an outer surface of the body, the handle is formed of an insulating material, and an insulating membrane layer is disposed on the outer surface of the body and separates the electrically conductive layer into at least two electrically conductive segments.

10. The biopsy ablation device of claim 6, wherein the second handle portion comprises a handle body and a detachment head, the handle body comprising a front handle portion and a rear handle portion, the handle body and the detachment head being coupled, the front handle portion and the rear handle portion being detachably coupled, a conductive member disposed within the handle body, the ablation needle being inserted into and conductively coupled to the conductive member.