CN211094305U

CN211094305U - Puncture biopsy sampler for bone and soft tissue tumor

Info

Publication number: CN211094305U
Application number: CN201921279811.4U
Authority: CN
Inventors: 李旭生; 扈容英
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-07-28
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a bone and soft tissue tumour puncture biopsy sampler, including the puncture sleeve pipe, can dismantle respectively the cooperation set up in cover core, cutterbar and the extractor in the puncture sleeve pipe, wherein: the puncture cannula is a strip-shaped tube body, and the needle tip of the puncture cannula is provided with a chute for puncture; one end of the sleeve core close to the chute is provided with an inclined plane coplanar with the chute; one end of the cutter close to the chute protrudes from the chute and is provided with a cutting piece for rotary cutting; one end of the extractor close to the chute is provided with a tong head which can be opened/occluded. The utility model discloses a have in the operation according to clinical examination demand, adjust and take out pathological tissue volume to the realization is once taken out the beneficial effect of large-dose pathological tissue through the extractor.

Description

Puncture biopsy sampler for bone and soft tissue tumor

Technical Field

The utility model relates to a biopsy sampling equipment technical field. More specifically, the utility model relates to a bone and soft tissue tumour puncture biopsy sampler.

Background

Biopsy refers to a pathological examination in which pathological tissues are taken out of a patient by incision, forceps, puncture, or the like, as needed for diagnosis and treatment. The sampler used in the puncture biopsy sampling of bone and soft tissue tumor generally comprises a puncture cannula (as shown in figure 1) and a cutter (as shown in figure 2) arranged in the puncture cannula in a penetrating way, and the structure can only take out a small amount of pathological tissues at one time in the puncture taking-out process and does not meet the clinical pathological examination material taking requirements.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.

It is still another object of the present invention to provide a bone and soft tissue tumor biopsy sampler, which can take out a large amount of pathological tissues at a time through the extractor during the sampling process.

In order to realize the basis of these objects and other advantages of the present invention, a bone and soft tissue tumor biopsy sampler is provided, comprising a puncture cannula, detachably fitted in a core, a cutter and an extractor in the puncture cannula, wherein:

The puncture cannula is a strip-shaped tube body, and the needle tip of the puncture cannula is provided with a chute for puncture;

One end of the sleeve core close to the chute is provided with an inclined plane coplanar with the chute;

One end of the cutter close to the chute protrudes from the chute and is provided with a cutting piece for rotary cutting;

One end of the extractor close to the chute is provided with a tong head which can be opened/occluded.

Preferably, the bone and soft tissue tumor needle biopsy sampler further comprises: the cutting device is detachably matched with the puncture sleeve, a cutting part is arranged at one end, close to the chute, of the cutting device, a collecting cavity is formed at the position, close to the cutting part, of the cutting device, and a collecting hole is formed in the collecting cavity.

Preferably, puncture sleeve pipe tail end rigid coupling has the screens cap, the screens cap is kept away from the one end of chute has the screens breach, wherein, the cover core is kept away from its inclined plane one end the cutterbar is kept away from its cutting member one end that its cutting member was kept away from to the surely ware, the handle of cover core is close to the one end of screens breach has the first screens piece that matches with the screens breach, works as the inclined plane with when the chute is planar altogether, first screens piece is inserted and is located in the screens breach.

Preferably, the extractor further comprises: the connecting rod comprises an outer sleeve rod with an opening at one end, a limiting cap fixedly arranged at the opening end of the outer sleeve rod and a pulling rod which is slidably positioned in the outer sleeve rod and penetrates out of the opening end of the outer sleeve rod, one end of the limiting cap is provided with a second clamping block matched with the clamping notch, and the penetrating end of the pulling rod is fixedly connected with an operation knob;

Wherein, the binding clip include last pincers mouth, with another tip butt joint of outer sleeve rod is the lower pincers mouth of a style of calligraphy, wherein, the outer sleeve rod other end is located the pincers mouth top has the activity mouth down, go up the pincers mouth include follow the activity mouth wear out and with lower pincers mouth complex pincers mouth, one end with pincers mouth position in the first articulated piece of one end rigid coupling in the outer sleeve rod, with first articulated piece rigid coupling end articulated second articulated piece, wherein, first articulated piece free end with the outer sleeve rod inside wall is articulated, the free end of the articulated piece of second with the pull pole is located one end in the outer sleeve rod is articulated, presses the operation button and makes the pull pole is along being close to when the binding clip direction removes, mouth pincers along being close to the direction of lower pincers mouth remove to with lower pincers mouth interlock.

Preferably, the cutting member is provided with a plurality of rows of blades circumferentially spaced along the mounting end portion thereof, and each row of blades is arranged along the axis direction of the mounting end portion so as to rotate for cutting.

Preferably, the cutting member is a saw tooth circumferentially spaced along its mounting end.

Preferably, the screens breach includes the edge two that screens cap axis symmetry set up work as the extractor is located in the puncture cover, and second screens piece one-to-one card is located when in the screens breach, the line between two screens breach is on a parallel with the top surface of pincers mouth down.

Preferably, the operation is turned round including the fixed block, fixed block one end integrated into one piece is provided with the pipe, the end of wearing out of pull pole coaxially set firmly in the pipe, spacing cap with form spacing hole between the pull pole, work as the pipe free end with during spacing downthehole end butt, the fixed block terminal surface with spacing cap terminal surface butt, the pincers mouth with lower pincers mouth interlock sets up.

Preferably, the operating button still includes the elasticity cap, the elasticity cap is one end open-ended cylindricly, the coaxial projection that is provided with in bottom of elasticity cap, the coaxial reference column that is provided with of the other end of fixed block, wherein, elasticity cap bottom with another terminal surface of fixed block has set firmly the spring within a definite time, projection, reference column are located in the spring, work as when the spring is in the natural extension state, the free end of reference column is located in the elasticity cap.

The utility model discloses at least, include following beneficial effect:

Firstly, the arrangement of the sleeve core improves the puncture convenience; secondly, can adjust according to clinical examination demand in the operation and take out pathological tissue volume, when using the supporting setting of puncture sleeve pipe, cover core, surely ware, realize taking out of low dose pathological tissue, when using the supporting setting of puncture sleeve pipe, cover core, cutterbar, ware, realize once taking out high dose pathological tissue, the whole device uses in a flexible way, and can select arbitrary supporting mode according to the demand.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a puncture cannula according to one embodiment of the present invention;

Fig. 2 is a schematic structural diagram of the sleeve core according to one of the technical solutions of the present invention;

Fig. 3 is a schematic structural view of the puncture cannula and the sheath core according to one of the technical solutions of the present invention;

Fig. 4 is a schematic structural diagram of a cutter according to one embodiment of the present invention;

FIG. 5 is a schematic view of the puncture cannula and the cutter according to one embodiment of the present invention;

Fig. 6 is a schematic structural view of the extractor according to one embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a cutter according to one embodiment of the present invention;

Fig. 8 is a schematic structural view of the puncture cannula and the cutter according to one of the technical solutions of the present invention;

Fig. 9 is a sectional view of the puncture cannula according to one embodiment of the present invention;

Fig. 10 is a cross-sectional view of the extractor according to one embodiment of the present invention;

Fig. 11 is a schematic structural view of the puncture cannula and the extractor according to one embodiment of the present invention;

Fig. 12 is an enlarged schematic view of a portion a of fig. 10.

The reference numerals are specifically: a puncture cannula 1; a blocking cap 10; a clamping notch 11; a chute 12; a sleeve core 8; a ramp 80; an operation handle 81; a first capture block 82; a cutter 9; serrations 90; a cutter 2; a collection chamber 20; a collection well 21; a take-out device 3; an outer loop bar 30; a stopper cap 31; a pull rod 32; a second bit block 33; a movable port 34; a lower plier mouth 4; a first hinge block 40; a second hinge block 41; a jaw portion 42; a fixed block 6; a circular tube 60; a stopper hole 61; an elastic cap 7; a boss 70; a positioning post 71; a spring 72.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1-12, the utility model provides a bone and soft tissue tumor puncture biopsy sampler, including puncture sleeve 1, can dismantle respectively (follow the slidable pull of puncture sleeve 1 length direction) the cooperation set up in cover core 8, cutterbar 9 and extractor 3 in puncture sleeve 1, wherein:

As shown in fig. 1, the puncture cannula 1 is an elongated tube, and both ends of the puncture cannula are open, and the needle tip of the puncture cannula 1 is provided with a chute 12 for puncture, i.e. a tip is cut at one end of the puncture cannula 1 to facilitate puncture;

As shown in fig. 2-3, an end of the ferrule 8 close to the inclined groove 12 is provided with an inclined surface 80 coplanar with the inclined groove 12, wherein the length of the ferrule 8 is set such that the inclined groove 12 is coplanar with the inclined surface 80 when the end of the ferrule 8 far from the inclined surface 80 is positioned in abutment with the end of the puncture cannula 1 far from the inclined groove 12;

As shown in fig. 4-5, the end of the cutter 9 close to the chute 12 protrudes from the chute 12 and is provided with a cutting member for rotary cutting, and the length of the cutter 9 is such that when the end of the cutter 9 remote from the cutting member thereof abuts the end of the puncture cannula 1 remote from the chute 12, the cutting member of the cutter 9 is unwound from the chute 12 and can rotate to cut;

As shown in fig. 6, an openable/engageable binding clip is provided at an end of the extractor 3 close to the inclined groove 12, and the length of the extractor 3 is set such that when the end of the extractor 3 remote from the binding clip abuts against an end of the puncture cannula 1 remote from the inclined groove 12, the binding clip is deployed from the inclined groove 12 and can be opened/engaged to perform sampling.

In the above technical solution, the puncture cannula 1 may have a diameter of 4.4-4.5mm, and the puncture cannula 1, the core 8, the cutter 9 and the extractor 3 are disposed in a matching manner, and in the using process, the method comprises the following steps:

S1, when puncture is carried out, the sleeve core 8 is arranged in the puncture sleeve 1 in a sliding mode, the inclined plane 80 and the end face of the inclined groove 12 are coplanar, one end, far away from the inclined plane 80, of the sleeve core 8 is abutted and positioned with one end of the puncture sleeve 1, puncture is carried out (a to-be-sampled part is punctured through skin), and after the puncture is finished, the sleeve core 8 is pulled out of the puncture sleeve 1;

S2, slidably arranging the cutter 9 in the puncture cannula 1, enabling one end of the cutter 9, which is far away from the cutting piece, to be abutted against one end of the puncture cannula 1, protruding one end of the cutter 9, which is provided with the cutting piece, from the chute 12, rotating the cutter 9 (the rotating angle is determined according to the actual setting and requirements of the cutting piece), cutting tissues, and drawing the cutter 9 out of the puncture cannula 1 after cutting is completed;

S3, the extractor 3 is slidably arranged in the puncture cannula 1, one end, far away from the binding clip, of the extractor 3 is abutted against one end of the puncture cannula 1 for positioning, at the moment, one end, with the binding clip, of the extractor 3 is exposed from the chute 12, the binding clip is controlled to be opened to collect a sample, then the binding clip is controlled to be occluded, the extractor 3 is pulled out of the puncture cannula 1, the large-dose extraction of the sample is realized, and the puncture cannula 1 is pulled out after the extraction is finished. Wherein the large dose is relative to the existing stealer. By adopting the technical scheme, firstly, the arrangement of the sleeve core 8 improves the puncture convenience; secondly, the puncture cannula 1, the sleeve core 8, the cutter 9 and the extractor 3 are arranged in a matching way, so that a large amount of pathological tissues can be extracted by the extractor 3 at one time according to the clinical examination requirement in the operation.

In another embodiment, as shown in fig. 7-8, the bone and soft tissue tumor biopsy sampler further comprises: the cutting device 2 is detachably (slidably drawn along the length direction of the puncture cannula 1) matched with the puncture cannula 1, a cutting part is arranged at one end, close to the chute 12, of the cutting device 2, a collecting cavity 20 is formed at the position, close to the cutting part, of the cutting device 2, and a collecting hole 21 is formed in the collecting cavity 20. Wherein, the length of the cutter 2 is set to be that when one end of the cutter 2 far away from the cutting piece is abutted with one end of the puncture cannula 1 far away from the chute 12, the cutting piece of the cutter 2 is unfolded from the chute 12 and can rotate to cut, meanwhile, the collecting cavity 20 is positioned between the cutting piece of the cutter 2 and one end of the cutter 2 far away from the cutting piece, and the positions of the collecting cavity 20 and the collecting hole 21 are set to collect pathological tissues after the cutter 2 rotates to cut; in the use, when needing to collect the pathological tissue of small dose, select puncture sleeve, cover core 8, the supporting use of excising ware 2, specifically include the following step:

S2, will surely get ware 2 and slide and locate in the puncture sleeve pipe 1, make surely get ware 2 keep away from its cutting member one end with puncture sleeve pipe 1' S one end butt, this moment surely get ware 2 and have the one end of cutting member follow chute 12 protrusion, rotatory surely get ware 2 (rotation angle is confirmed according to setting and the demand of actual cutting member), carry out the tissue cutting, accomplish the cutting back, collect pathological tissue through the collection chamber 20 of surely getting ware 2, back is taken out along puncture sleeve pipe 1 length direction and is cut ware 2, collects and gathers materials. Adopt this kind of technical scheme, can adjust according to clinical examination demand in the operation and take out pathological tissue volume, when using puncture sleeve pipe 1, cover core 8, surely get supporting of ware 2 and set up, realize taking out of low dose pathological tissue, when using puncture sleeve pipe 1, cover core 8, cutterbar 9, the supporting of ware 3 to set up, realize once taking out large dose pathological tissue, whole equipment uses in a flexible way, and can select arbitrary supporting mode according to the demand.

In another technical solution, a retaining cap 10 is fixedly connected to the tail end (the end far away from the chute 12) of the puncture cannula 1, the retaining cap 10 is hollow and cylindrical, the two ends of the retaining cap 10 are open, the inner circumference of the retaining cap 10 is fixedly arranged at the outer circumference of the tail end of the puncture cannula 1, one end of the retaining cap 10 far away from the chute 12 is provided with a retaining notch 11, wherein one end of the sheath core 8 far away from the inclined plane 80 thereof, one end of the cutter 9 far away from the cutter thereof, and one end of the cutter 2 far away from the cutter thereof are respectively provided with an operating handle 81, so as to facilitate holding and operating by a human hand, as shown in fig. 2, one end of the operating handle 81 of the sheath core 8 near the retaining notch 11 is provided with a first retaining block 82 matching with the retaining notch 11, and when the inclined plane 80 and the chute 12 are coplanar, the first retaining block 82 is inserted into the retaining notch 11, so that the sheath core 8 does not rotate relative to the puncture cannula 1, the positioning is realized, as shown in fig. 4, one end of the cutter 9, which is far away from the cutting part, is a smooth circular ring surface, so that the cutter can rotate and cut conveniently, as shown in fig. 7, one end of the cutter 2, which is far away from the cutting part, is a smooth circular ring surface, so that the cutter can rotate and cut conveniently, and the operating handle 81 of the cutter 2 is shown in fig. 7. By adopting the technical scheme, the assembly positioning of the puncture cannula 1 and the matched device thereof is realized.

In another aspect, the extractor 3 further includes: the connecting rod comprises an outer sleeve rod 30 (which is matched with the puncture sleeve 1 and is provided with an opening at one end (when the extractor 3 is arranged in the puncture sleeve 1 in a matching manner, the end is the end away from the chute 12), a limiting cap 31 (the limiting cap 31 is hollow and cylindrical with two open ends, the inner circumference of the limiting cap 31 is fixedly arranged at the outer periphery of the open end of the outer sleeve rod 30), and a pull rod 32 which is slidably arranged in the outer sleeve rod 30 and penetrates out from the open end of the outer sleeve rod 30, one end of the limiting cap 31 (when the extractor 3 is arranged in the puncture sleeve 1 in a matching manner, the end is the end opposite to the pull rod 10) is provided with a second clamping block 33 matched with the clamping gap 11, the penetrating end of the pull rod 32 is fixedly connected with an operation knob, and the operation knob is convenient for a user to operate;

Wherein the binding clip comprises an upper binding clip mouth and a lower binding clip mouth 4 which is in a straight line shape and is butted with the other end part of the outer sleeve rod 30, wherein, the other end of the outer loop bar 30 is provided with a movable opening 34 above the lower plier mouth 4, the upper nipper mouth comprises a nipper mouth part 42 which penetrates out of the movable opening 34 and is matched with the lower nipper mouth 4, a first hinging block 40 with one end fixedly connected with one end of the nipper mouth part 42 positioned in the outer sleeve rod 30, and a second hinging block 41 with the fixedly connected end hinged with the first hinging block 40, wherein, the free end of the first hinge block 40 is hinged with the inner side wall of the outer sleeve rod 30, the free end of the second hinge block 41 is hinged with one end of the pull rod 32 located in the outer sleeve rod 30, when the operation button is pressed to make the pull rod 32 move in the direction close to the binding clip, the jaw portion 42 is moved in a direction to approach the lower jaw 4 to engage with the lower jaw 4. The occlusion end of the upper forceps mouth and the lower forceps mouth 4 can be arranged to be in a tooth shape, the upper forceps mouth and the lower forceps mouth 4 are groove bodies which are recessed along the direction away from each other, the outer sleeve rod 30 can be arranged to be in a hollow cylindrical shape with the diameter of 4-4.1mm, by adopting the technical scheme, in the using process, the forceps heads are controlled to be in an occlusion state, the extractor 3 is inserted out along the length direction of the puncture sleeve 1, the pull rod 32 is controlled to move along the direction away from the fixed handle, so that the forceps heads are opened, the forceps heads are occluded after materials are collected, the extractor 3 is extracted out along the length direction of the puncture sleeve 1, then pathological tissues are taken out, and the opening/occlusion of the forceps heads is controlled.

In another technical scheme, the cutting piece is provided with a plurality of rows of cutting edges at intervals along the circumferential direction of the mounting end part of the cutting piece, and each row of cutting edges is arranged along the axial direction of the mounting end part so as to cut in a rotating mode. By adopting the technical scheme, the cutting is convenient.

In another embodiment, the cutting element is a saw-tooth 90 circumferentially spaced along the mounting end thereof, and when the cutting element is a saw-tooth 90 and the components of the cutting element are adapted to be mounted, the end of the bevel 12 of the puncture cannula 1 is slightly longer than the puncture cannula 1. By adopting the technical scheme, the cutting is convenient.

In another technical solution, the two retaining notches 11 are symmetrically arranged along the axial line of the retaining cap 10, and when the extractor 3 is disposed in the puncture cannula 1 and the second retaining blocks 33 are correspondingly retained in the retaining notches 11, the connecting line between the two retaining notches 11 is parallel to the top surface of the lower forceps mouth 4. By adopting the technical scheme, the stability of the clamping position is improved by the arrangement of the two clamping position gaps 11, and the positioning sampling is convenient.

In another technical scheme, the operation is turned round including fixed block 6, 6 one end integrated into one piece of fixed block is provided with pipe 60, the end of wearing out of pull pole 32 coaxial set firmly in pipe 60, spacing cap 31 with form spacing hole 61 between pull pole 32, work as pipe 60 free end with during spacing hole 61 bottom butt, 6 terminal surfaces of fixed block with spacing cap 31 terminal surface butt, pincers mouth 42 with lower pincers mouth 4 interlock setting. By adopting the technical scheme, the convenience of the opening and closing operation control of the clamp head is improved.

In another technical scheme, the operating button further comprises an elastic cap 7, the elastic cap 7 is cylindrical with an opening at one end, a convex column 70 is coaxially arranged at the bottom end of the elastic cap 7, a positioning column 71 is coaxially arranged at the other end of the fixing block 6, a spring 72 is fixedly arranged between the bottom end of the elastic cap 7 and the other end face of the fixing block 6, the convex column 70 and the positioning column 71 are located in the spring 72, and when the spring 72 is in a natural extension state, the free end of the positioning column 71 is located in the elastic cap 7. By adopting the technical scheme, the problem of overlarge hand operation force is relieved through the control of the spring 72, and the control effect of an operator on the device is improved.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. The application, modifications and variations of the bone and soft tissue tumor biopsy sampler of the present invention will be apparent to those skilled in the art.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. Bone and soft tissue tumour puncture biopsy sampler, its characterized in that, including puncture sleeve pipe, can dismantle respectively the cooperation set up in cover core, cutterbar and the extractor in the puncture sleeve pipe, wherein:

2. The bone and soft tissue tumor biopsy sampler of claim 1, further comprising: the cutting device is detachably matched with the puncture sleeve, a cutting part is arranged at one end, close to the chute, of the cutting device, a collecting cavity is formed at the position, close to the cutting part, of the cutting device, and a collecting hole is formed in the collecting cavity.

3. The bone and soft tissue tumor biopsy sampler of claim 2, wherein a retaining cap is fixedly connected to the tail end of the puncture cannula, and a retaining notch is formed in an end of the retaining cap away from the chute, wherein an end of the sheath core away from the inclined plane, an end of the cutter away from the cutting part, and an end of the cutter away from the cutting part are provided with operation handles, an end of the operation handle of the sheath core close to the retaining notch is provided with a first retaining block matched with the retaining notch, and when the inclined plane and the chute are coplanar, the first retaining block is inserted into the retaining notch.

4. The bone and soft tissue tumor biopsy sampler of claim 3, wherein the extractor further comprises: the connecting rod comprises an outer sleeve rod with an opening at one end, a limiting cap fixedly arranged at the opening end of the outer sleeve rod and a pulling rod which is slidably positioned in the outer sleeve rod and penetrates out of the opening end of the outer sleeve rod, one end of the limiting cap is provided with a second clamping block matched with the clamping notch, and the penetrating end of the pulling rod is fixedly connected with an operation knob;

5. The bone and soft tissue tumor biopsy sampler of claim 2, wherein the cutting member is provided with a plurality of rows of blades circumferentially spaced along the mounting end portion thereof, each row of blades being axially disposed along the mounting end portion for rotational cutting.

6. The bone and soft tissue tumor biopsy sampler of claim 2, wherein the cutting member is serrated at circumferentially spaced intervals along its mounting tip.

7. The bone and soft tissue tumor biopsy sampler of claim 4, wherein the retaining notch comprises two symmetrically disposed along the central axis of the retaining cap, and when the extractor is disposed in the puncture cannula and the second retaining block is correspondingly retained in the retaining notch, the connecting line between the two retaining notches is parallel to the top surface of the lower forceps nozzle.

8. The bone and soft tissue tumor biopsy sampler of claim 4, wherein the operating knob comprises a fixing block, one end of the fixing block is integrally formed with a circular tube, the penetrating end of the drawing rod is coaxially and fixedly arranged in the circular tube, a limiting hole is formed between the limiting cap and the drawing rod, when the free end of the circular tube abuts against the bottom end of the limiting hole, the end surface of the fixing block abuts against the end surface of the limiting cap, and the forceps mouth portion is engaged with the lower forceps mouth.

9. The bone and soft tissue tumor biopsy sampler of claim 8, wherein the operating button further comprises an elastic cap, the elastic cap is cylindrical with an open end, a protruding column is coaxially disposed at the bottom end of the elastic cap, a positioning column is coaxially disposed at the other end of the fixing block, a spring is fixedly disposed between the bottom end of the elastic cap and the other end surface of the fixing block, the protruding column and the positioning column are disposed in the spring, and when the spring is in a natural extension state, the free end of the positioning column is disposed in the elastic cap.