CN113827325A - Puncture sampler for oncology department - Google Patents

Abstract

The invention discloses a puncture sampler for oncology, belonging to the technical field of medical instruments, and comprising a sleeve and a handheld component, wherein the bottom of the sleeve is fixedly connected with a protection tube; the utility model discloses a tumor marker locating device, including casing, thimble, sampler, thimble inner chamber, location needle puncture part cover, the thimble is established the casing is intraductal, the top cover of location needle puncture part is equipped with the loose ring, the outside fixedly connected with of loose ring presses the clamp plate, the sampler runs through the bottom of thimble inner chamber and extends to in the protective tube, the benefit that location needle puncture part set up lies in mark department when fixing a position tumor marker department, directly is located the location syringe needle, press the clamp plate under can, press the clamp plate to pass through loose ring swing joint moreover, when inserting like this, the direct arbitrary hand-held device of doctor, the homoenergetic conveniently will point to press the position of clamp plate, and it is more convenient to operate.

Description

Puncture sampler for oncology department

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a puncture sampler for an oncology department.

Background

The tumor is a new organism formed by that certain cells of local tissues lose normal regulation and control on the growth of the local tissues at the gene level under the action of various carcinogenic factors, so that the local tissues are clonally abnormally proliferated. It is generally accepted that tumor cells are monoclonal, i.e., all tumor cells in a tumor are progeny of a mutated cell. Tumors are generally classified into two broad categories, benign and malignant. Benign tumors are commonly referred to as "tumors", malignant tumors from epithelial tissue as "carcinomas", and from mesenchymal tissue as "sarcomas". Certain such malignant tumors may also be referred to as "tumors" or "diseases," such as malignant lymphoma, seminoma, leukemia, hodgkin's disease, and the like. All malignant tumors are customarily known as cancers or carcinomas.

In the case of confirming a tumor or a suspected tumor, pathological analysis is generally required, and a common means is to sample the suspected tumor and then to perform pathological detection on the sampled sample, while the conventional pathological sampling method includes the steps of inserting a positioning needle into the tumor, separating a syringe from the positioning needle, inserting the sampling needle into the positioning needle, tightly connecting the sampling needle with the positioning needle, and pressing the end part to perform sampling, so that the sampling step is a separated intermittent operation, the continuity is not strong, the operation time is relatively long, and the number of the sampled samples is limited and the position of the sampled sample has specificity.

Disclosure of Invention

The invention aims to: to solve the problems posed by the background art.

In order to achieve the purpose, the invention adopts the following technical scheme: a puncture sampler for oncology comprises;

the sleeve is used for a handheld component, and the bottom of the sleeve is fixedly connected with a protection tube;

a positioning needle puncture component which is sleeved in the sleeve, the bottom end of the positioning needle puncture component penetrates through the inner cavity of the sleeve and extends into the protective tube, the top end of the positioning needle puncture component is sleeved with a movable ring, the outer part of the movable ring is fixedly connected with a pressing plate, the sleeve comprises a sleeve body, the bottom end of the sleeve body is fixedly connected with a special-hole pipe, a grading driving ring is sleeved in the special-hole pipe, the grading driving ring comprises a fixing ring, the fixing ring is provided with an annular inner cavity, two arc-shaped plates are sleeved in the annular inner cavity, the front side and the rear side of the inner wall of the arc-shaped plate are both fixedly connected with an extrusion plate, the middle part of the inner wall of the arc-shaped plate is fixedly connected with a limiting block, the limiting block and the two extrusion plates penetrate through an arc-shaped groove formed in the annular inner cavity, and compression springs arranged on the inner wall of the annular inner cavity are arranged on the front side and the rear side of the outer wall of each arc-shaped plate;

the sampler penetrates through the inner cavity of the positioning needle puncture part, the top end of the sampler is positioned above the positioning needle puncture part, the bottom end of the sampler extends into the positioning needle puncture part, the sampler comprises a pressing rod, the bottom end of the pressing rod is sleeved in the hollow exposed tube, the bottom of the pressing rod is fixedly connected with a connecting rod, the bottom end of the connecting rod penetrates through the inner cavity of the lantern ring, the bottom end of the connecting rod is fixedly connected with a lower push rod, the bottom end of the lower push rod is fixedly connected with a limiting cap, the bottom end of the limiting cap is fixedly connected with a sampling needle, the sampling needle is sleeved on the positioning needle, two ends of the limiting cap penetrate through the sliding groove, the bottom of the limiting cap is lapped on the top of the limiting block, and the bottom end of the sampling needle is fixedly connected with a drilling needle;

the utility model discloses a hollow pipe, including the cavity, the location needle puncture part is equipped with the cover pipe, the cavity exposes the pipe box and establishes the sleeve pipe is originally internal, the below of the inside pipe wall both sides are exposed to the cavity all is provided with the stationary semi-ring, the bottom fixedly connected with connection piece of stationary semi-ring, two the lantern ring of bottom fixedly connected with of connection piece, the bottom fixedly connected with adapter sleeve of the lantern ring, the bottom fixedly connected with location syringe needle of adapter sleeve, the location syringe needle is provided with the through hole, the left and right sides of location syringe needle evenly is provided with the spout, the top of both sides all is provided with the arc arch around the location syringe needle, the bellied lateral surface of arc and two the stripper plate contact of arc homonymy.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the protective tube is arranged, and under the condition of non-use, the protective sleeve is matched with the protective cap for use, so that the positioning needle puncture component is in a sealed environment, the problem of infection of the positioning needle puncture component can be solved in transportation, the positioning needle puncture component is safer, the protective cap can be taken down from the protective sleeve during use, and after use, the protective cap is tightly sleeved on the protective sleeve, so that a sampled sample can be effectively sealed, and the safety of the sample can be improved;

2. when in use, the positioning needle head is arranged at the tumor mark position, the pressing plate is pressed, the pressing plate drives the hollow exposed pipe to slide downwards in the sleeve body in the process of moving downwards, the fixed semi-ring fixedly connected with the sleeve body moves downwards, on one hand, the arrangement of the fixed semi-ring ensures that the connecting sheet and the hollow exposed pipe are not positioned on the same vertical line in the connecting process, and the fixed semi-ring also ensures that the connecting sheet does not shake when moving downwards when pressing downwards and ensures the stability of the connecting sheet, the connecting sheet enables the connecting sleeve at the bottom of the sleeve ring to move downwards, the positioning needle head at the bottom of the connecting sleeve moves downwards from the protective sleeve, the sliding chute moves downwards on the grading driving ring in the process of moving downwards, when the sliding chute abuts against the grading driving ring, the positioning needle is inserted into the tumor mark position, meanwhile, in the moving process of the arc-shaped bulge on the connecting sleeve, the arc-shaped bulge is in contact with the inner wall of the grading driving ring, the inner cavity of the grading driving ring is expanded, and the positioning needle puncture component has the advantages that when a tumor mark is positioned, the positioning needle head is directly positioned at the mark, the pressing plate is pressed downwards, and the pressing plate is movably connected through the movable ring, so that when a doctor directly and randomly holds the device, the finger can be conveniently pressed to the position of the pressing plate, and the operation is more convenient;

3. after positioning is finished, because the two arc-shaped bulges are in contact with the four extrusion plates on the inner wall of the grading driving ring, when the arc-shaped bulges move downwards, the arc-shaped bulges are wedge-shaped, the outer surfaces of the arc-shaped bulges are arranged in an arc shape, so that the extrusion plates move in the opposite directions under the action of the arc-shaped bulges, and the extrusion plates can drive the arc-shaped plates to move towards the annular inner cavity, therefore, the limit blocks on the arc-shaped plates enter the annular inner cavity from the arc-shaped grooves, when the limit blocks enter the annular inner cavity, the limit blocks are separated from the lap joint state with the bottom of the limit cap, so that the sampler can move, wherein the top parts of the arc-shaped bulges are provided with inward concave grooves, when the arc-shaped bulges move to the lowest part, one ends of the extrusion plates are tightly clamped in the inward concave grooves, so that the limit blocks can be fixed, and through the arrangement of the grading driving ring, the grading driving ring can be used before the positioning needle head, the sampler can be limited, and the setting has the advantages that the normative of the sampling operation process can be strictly ensured, the misoperation is avoided in the using process, the damage of the sampler to the body of a patient is avoided, and the using safety of the instrument is ensured;

4. two wave grooves correspond the setting, when spacing cap downstream, the displacement pole removes to the wave inslot, the process of removal down, pivoted opposite direction when two displacement poles remove, two sliding blocks can crisscross subtend or reverse movement on annular slide rail like this, when two sliding blocks can crisscross subtend or reverse rotation on annular slide rail, two arcs fixed on the sliding block also can crisscross subtend or reverse rotation, arc panel strip on the arc panel can rotate thereupon like this, two arc panel strips on the coplanar are close to each other when the circular motion, keep away from each other, when being close to each other, protruding blade on one side that is close to contacts each other, can cut the tumour thing like this, the cutting sword contact in turn on the protruding blade that sets up around, thereby can sample tumour tissue.

Drawings

FIG. 1 is a perspective view of a puncture sampler for oncology according to the present invention;

FIG. 2 is a cross-sectional view of a puncture sampler cannula for oncology according to the present invention;

FIG. 3 is a front cross-sectional view of a positioning needle puncturing part of a puncture sampler for oncology according to the present invention;

FIG. 4 is a sectional view of a stepped driving ring of a puncture sampler for oncology according to the present invention;

FIG. 5 is a schematic view of a puncture sampler limit cap for oncology according to the present invention;

FIG. 6 is a schematic view of a wave trough of a puncture sampler for oncology according to the present invention.

Illustration of the drawings:

1 sleeve, 11 sleeve bodies, 12 special-hole tubes, 13 stepped driving rings, 131 fixing rings, 132 annular inner cavities, 133 arc-shaped grooves, 134 arc-shaped plates, 135 squeezing plates, 136 limiting blocks, 137 compression springs, 2 positioning needle puncturing parts, 21 hollow exposed tubes, 22 fixing half rings, 23 connecting plates, 24 lantern rings, 25 connecting sleeves, 26 positioning needles, 27 sliding grooves, 28 through holes, 29 arc-shaped bulges, 3 protection tubes, 31 protection sleeves, 32 protection caps, 33 arc-shaped guide rails, 34 wave grooves, 4 movable rings, 5 pressing plates, 6 samplers, 61 pressing rods, 62 connecting rods, 63 push rods, 64 limiting caps, 641 rod bodies, 642 annular sliding rails, sliding block positioning sliding strips, 644, 645 bulges, 646 displacement rods, 65 sampling needles, 651 arc-shaped sheets, 652 bulge blades, 653 cutting edges, 654 arc-shaped insertion strips, 655 sampling grooves and 66 drilling needles.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-6, a puncture sampler for oncology includes;

the sleeve 1 is used for a handheld component, and the bottom of the sleeve 1 is fixedly connected with aprotection tube 3;

theprotection tube 3 includesprotection sleeve 31, andprotection sleeve 31's bottom cover is equipped withprotective cap 32, andprotection sleeve 31 inner wall is provided witharc guide rail 33, and twoarc guide rail 33 inner walls correspond and are provided withwave groove 34, and a pot head of displacement lever 646 is established inwave groove 34.

Theprotection tube 3 is arranged, under the condition of not using, theprotection sleeve 31 is matched with theprotection cap 32 for use, so that the positioningneedle puncture component 2 is in a sealed environment, in the transportation process, the problem of infection of the positioningneedle puncture component 2 can be avoided, the positioningneedle puncture component 2 is safer, theprotection cap 32 can be taken down from theprotection sleeve 31 in the use process, after the use, theprotection cap 32 is tightly sleeved on theprotection sleeve 31, the sample to be sampled can be effectively sealed, and the safety of the sample can be improved.

A positioningneedle puncture component 2, the positioningneedle puncture component 2 is sleeved in the sleeve 1, the bottom end of the positioningneedle puncture component 2 penetrates through the inner cavity of the sleeve 1 and extends into theprotection tube 3, the top end of the positioningneedle puncture component 2 is sleeved with amovable ring 4, the outer part of themovable ring 4 is fixedly connected with apressing plate 5, the positioningneedle puncture component 2 comprises a hollow exposedtube 21, the hollow exposedtube 21 is sleeved in thesleeve body 11, fixedhalf rings 22 are respectively arranged below the two sides of the inner wall of the hollow exposedtube 21, the bottom of thefixed half rings 22 is fixedly connected with connectingsheets 23, the bottoms of the two connectingsheets 23 are fixedly connected with alantern ring 24, the bottom of thelantern ring 24 is fixedly connected with a connecting sleeve 25, the bottom of the connecting sleeve 25 is fixedly connected with apositioning needle 26, thepositioning needle 26 is provided with a throughhole 28, the left side and the right side of thepositioning needle 26 are uniformly provided with slidinggrooves 27, and the upper parts of the front side and the back side of thepositioning needle 26 are respectively provided with an arc-shaped bulge 29, the outer side surface of the arc-shaped protrusion 29 is contacted with theextrusion plate 135 on the same side of the two arc-shaped plates 134;

when the device is used, thepositioning needle 26 is placed at a tumor mark, thepressing plate 5 is pressed, and in the process that thepressing plate 5 moves downwards, thepressing plate 5 drives the hollow exposedtube 21 to slide downwards in thesleeve body 11, thefixed half ring 22 fixedly connected to thesleeve body 11 moves downwards, on one hand, thefixed half ring 22 is arranged to ensure that the connectingsheet 23 and the hollow exposedtube 21 are not on the same vertical line in the connecting process, and thefixed half ring 22 also ensures that the connectingsheet 23 does not shake when moving vertically downwards when pressing thepressing plate 5 downwards, so as to ensure the stability of the connecting sheet, the connectingsheet 23 enables the connecting sleeve 25 at the bottom of thesleeve ring 24 to move downwards, at the moment, thepositioning needle 26 at the bottom of the connecting sleeve 25 moves downwards from theprotective sleeve 31, and in the process that thepositioning needle 26 moves downwards, thesliding chute 27 moves downwards on thegrading driving ring 13, when thesliding groove 27 abuts against thestepped driving ring 13, thepositioning needle 26 is inserted into the tumor mark, and simultaneously, the arc-shaped protrusion 29 on the connecting sleeve 25 contacts with the inner wall of the stepped drivingring 13 in the moving process, so that the inner cavity of thestepped driving ring 13 is expanded;

the benefit that above-mentioned pilotpin puncture part 2 set up lies in, when fixing a position tumor marker department, directly is located mark department withlocation syringe needle 26, press down press thepressing plate 5 can, press theplate 5 throughactivity ring 4 swing joint moreover, when inserting like this, the direct arbitrary hand-held device of doctor, the homoenergetic is convenient presses the position of pressing theplate 5 with the finger, operates convenience more.

Sleeve 1 includessleeve pipe body 11, the different hole pipe 12 of bottom fixedly connected with ofsleeve pipe body 11, different hole pipe 12 endotheca is equipped withhierarchical drive ring 13,hierarchical drive ring 13 is including solidfixed ring 131, gu fixedring 131 is provided with annularinner chamber 132, annularinner chamber 132 endotheca is equipped with twoarcs 134, the equal fixedly connected withstripper plate 135 in both sides around thearc 134 inner wall, the middle part fixedly connected withstopper 136 ofarc 134 inner wall,stopper 136 and twostripper plate 135 all run through in thearc 133 that annularinner chamber 132 set up, both sides all are provided with thecompression spring 137 who sets up with annularinner chamber 132 inner wall around thearc 134 outer wall

After the positioning is completed, because the two arc-shaped protrusions 29 and the foursqueezing plates 135 on the contact of the inner wall of thegrading driving ring 13, when the arc-shaped protrusions 29 move downwards, the arc-shaped protrusions 29 are wedge-shaped, the outer surface of the arc-shaped protrusions 29 is arc-shaped, so that thesqueezing plates 135 move in the opposite directions under the action of the arc-shaped protrusions 29, and thesqueezing plates 135 can drive the arc-shaped plates 134 to move in the annularinner cavity 132, so that thelimiting blocks 136 on the arc-shaped plates 134 enter the annularinner cavity 132 from the arc-shaped grooves 133, so that when thelimiting blocks 136 enter the annularinner cavity 132, thelimiting blocks 136 are separated from the overlapped state with the bottoms of the limiting caps 64, so that the sampler 6 can move, wherein the tops of the arc-shaped protrusions 29 are provided with inward recessed grooves, when the arc-shaped protrusions 29 move to the lowest position, one ends of thesqueezing plates 135 are tightly clamped in the inward recessed grooves, so that thelimiting blocks 136 can be fixed.

Through the setting tohierarchical drive ring 13,hierarchical drive ring 13 can restrict sampler 6 beforelocation syringe needle 26 uses, and the benefit that sets up like this lies in, can guarantee the standardization of sample operation flow strictly, avoids in-process using moreover, and the maloperation appears, avoids sampler 6 to cause the condition of damage to patient's health, has guaranteed the security of instrument use moreover.

Sampler 6, sampler 6 runs through the inner chamber of pilotpin piercing part 2, and the top of sampler 6 is located the top of pilotpin piercing part 2, and the bottom of sampler 6 extends in pilotpin piercing part 2, sampler 6 includes pressingpole 61, the bottom cover ofpressing pole 61 is established in cavity exposes in thepipe 21, the bottom fixedly connected with connectingrod 62 ofpressing pole 61, the inner chamber of thelantern ring 24 is run through to the bottom of connectingrod 62, the bottom fixedly connected with push down rod 63 of connectingrod 62, the bottom fixedly connected with stop cap 64 of push down rod 63, the bottom fixedly connected with sampling needle 65 of stop cap 64, sampling needle 65 covers is established atlocation syringe needle 26,spout 27 is run through at the both ends of stop cap 64, the bottom overlap joint of stop cap 64 is at the top ofstop block 136, the bottom fixedly connected withdrill needle 66 of sampling needle 65.

When the tumor is sampled, thepressing rod 61 is pressed downwards, the connectingrod 62 at the bottom end of thepressing rod 61 moves downwards from thelantern ring 24, the limiting cap 64 on the lower pressing rod 63 moves downwards through thelimiting block 136, the sampling needle 65 on the limiting cap 64 moves from the throughhole 28, and thedrill needle 66 can be positioned at the tumor;

the limiting cap 64 comprises arod body 641, anannular slide rail 642 is sleeved on therod body 641, sliding blocks 644 are connected to the left side and the right side of theannular slide rail 642 in a sliding mode, the two sliding blocks 644 are arranged correspondingly,positioning slide bars 643 are arranged on the two sliding blocks 644, a movable space is reserved between thepositioning slide bars 643 and the sliding blocks 644,protrusions 645 are arranged on the outer sides of the sliding blocks 644, displacement rods 646 are arranged on the outer sides of theprotrusions 645, and the bottoms of the sliding blocks 644 are overlapped on the tops of the limitingblocks 136.

When the position limiting cap 646 moves downward, the displacement rod 646 can enter thewave groove 34. The twowave grooves 34 are correspondingly arranged, when the limiting cap 646 moves downwards, the displacement rod 646 moves into thewave grooves 34, and the rotating directions of the two displacement rods 646 are opposite during the downward movement, so that the two sliding blocks 644 can alternately move in opposite directions or in opposite directions on the annular slidingrail 642.

The sampling needle 65 comprises two arc-shaped pieces 651, the two arc-shaped pieces 651 are attached to the surface of therod body 641, the top of each arc-shaped piece 651 is fixedly connected with the bottom of the sliding block 644, an arc-shaped insertion strip 654 is fixedly connected to one side, opposite to each arc-shaped piece 651, of each arc-shaped insertion strip 654, the arc-shaped insertion strips 654 are sleeved insampling grooves 655 formed in therod body 641, protrudingblades 652 are arranged on the surfaces of the arc-shaped insertion strips 654, andcutting edges 653 are arranged on one sides of theprotruding blades 652.

When the two sliding blocks 644 can alternately rotate oppositely or reversely on the annular slidingrail 642, the two arc-shaped sheets 651 fixed on the sliding blocks 644 can alternately rotate oppositely or reversely, so that the arc-shaped strips 654 on the arc-shaped sheets 651 rotate along with the arc-shaped strips 654, so that the two arc-shaped strips 654 on the same plane approach each other in the circular motion, the two arc-shaped strips 654 move away from each other, when the two arc-shaped strips 654 approach each other, the twoconvex blades 652 on the adjacent sides contact each other, the tumor object can be cut, and thecutting edges 653 on theconvex blades 652 arranged in the front and the back alternately contact each other, so that the tumor tissue can be sampled.

In a specific using process, thepositioning needle 26 is placed at a tumor mark, thepressing plate 5 is pressed, and in the process that thepressing plate 5 moves downwards, thepressing plate 5 drives the hollow exposedtube 21 to slide downwards in thesleeve body 11, thefixed half ring 22 fixedly connected to thesleeve body 11 moves downwards, on one hand, the arrangement of thefixed half ring 22 ensures that the connectingsheet 23 and the hollow exposedtube 21 are not in the same vertical line in the connecting process, and thefixed half ring 22 also ensures that the connectingsheet 23 does not shake when moving vertically downwards when thepressing plate 5 is pressed downwards, so as to ensure the stability of the connecting sheet, the connectingsheet 23 enables the connecting sleeve 25 at the bottom of thesleeve ring 24 to move downwards, at the moment, thepositioning needle 26 at the bottom of the connecting sleeve 25 moves downwards out of theprotective sleeve 31, and in the process that thepositioning needle 26 moves downwards, thechute 27 moves downwards on thegrading driving ring 13, when thesliding groove 27 abuts against the gradeddriving ring 13, at this time, thepositioning needle 26 is inserted into the tumor mark, and at the same time, in the process of moving the arc-shaped protrusion 29 on the connecting sleeve 25, the arc-shaped protrusion 29 contacts with the inner wall of the gradeddriving ring 13, and the inner cavity of the gradeddriving ring 13 is expanded, after positioning is completed, because the two arc-shaped protrusions 29 contact with the inner wall of the gradeddriving ring 13 through the fourpressing plates 135, when the arc-shaped protrusion 29 moves downwards, the arc-shaped protrusion 29 is wedge-shaped, and the outer surface of the arc-shaped protrusion 29 is arc-shaped, so that thepressing plates 135 move in the opposite directions under the action of the arc-shaped protrusion 29, thepressing plates 135 can drive the arc-shaped plate 134 to move towards the annularinner cavity 132, so that thelimiting blocks 136 on the arc-shaped plate 134 enter the annularinner cavity 132 from the arc-shaped grooves 133, and when thelimiting blocks 136 enter the annularinner cavity 132, thelimiting blocks 136 and the bottom of the limiting caps 64 are separated from the overlapping state, thus, the sampler 6 can move, wherein the top of the arc-shaped protrusion 29 is provided with an inward groove, when the arc-shaped protrusion 29 moves to the lowest position, one end of theextrusion plate 135 is clamped in the inward groove, so that the limitingblock 136 can be fixed, when a tumor is sampled, thepressing rod 61 is pressed downwards, the connectingrod 62 at the bottom end of thepressing rod 61 moves downwards from thelantern ring 24, the limiting cap 64 on the lower pressing rod 63 moves downwards through thelimiting block 136, the sampling needle 65 on the limiting cap 64 moves from the throughhole 28, thedrill needle 66 can be positioned at the tumor, and when the limiting cap 646 moves downwards, the displacement rod 646 can enter thewave groove 34. The twowave grooves 34 are correspondingly arranged, when the limiting cap 646 moves downwards, the displacement rod 646 moves into thewave grooves 34, the moving direction of the two displacement rods 646 is opposite when the two displacement rods 646 move, so that the two sliding blocks 644 can alternately move in opposite directions or directions on the ring-shaped slidingrail 642, when the two sliding blocks 644 can alternately rotate in opposite directions or directions on the ring-shapedsliding rail 642, the two arc-shaped pieces 651 fixed on the sliding block 644 also rotate alternately in opposite directions, the arcuate bands 654 of thearcuate segments 651 thus rotate with them, such that the arcuate bands 654 on the same plane move toward each other, away from each other, and toward each other, with the projectingblades 652 on the adjacent sides contacting each other, this cuts the tumor, and thecutting edges 653 of theprotruding blades 652 disposed in front and behind alternately contact with each other, thereby sampling the tumor tissue.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. A puncture sampler for oncology is characterized by comprising;

the sleeve is used for a handheld component, and the bottom of the sleeve is fixedly connected with a protection tube;

a positioning needle puncture component which is sleeved in the sleeve, the bottom end of the positioning needle puncture component penetrates through the inner cavity of the sleeve and extends into the protective tube, the top end of the positioning needle puncture component is sleeved with a movable ring, the outer part of the movable ring is fixedly connected with a pressing plate, the sleeve comprises a sleeve body, the bottom end of the sleeve body is fixedly connected with a special-hole pipe, a grading driving ring is sleeved in the special-hole pipe, the grading driving ring comprises a fixing ring, the fixing ring is provided with an annular inner cavity, two arc-shaped plates are sleeved in the annular inner cavity, the front side and the rear side of the inner wall of the arc-shaped plate are both fixedly connected with an extrusion plate, the middle part of the inner wall of the arc-shaped plate is fixedly connected with a limiting block, the limiting block and the two extrusion plates penetrate through an arc-shaped groove formed in the annular inner cavity, and compression springs arranged on the inner wall of the annular inner cavity are arranged on the front side and the rear side of the outer wall of each arc-shaped plate;

the sampler, the sampler runs through the inner chamber of pilot pin puncture part, just the top of sampler is located the top of pilot pin puncture part, just the bottom of sampler extends in the pilot pin puncture part, the sampler is including pressing the depression bar, press the bottom cover of depression bar to be established in the cavity exposes intraductally, press the bottom fixedly connected with connecting rod of depression bar, the bottom of connecting rod runs through the inner chamber of the lantern ring, the bottom fixedly connected with push down rod of connecting rod, the bottom fixedly connected with limit cap of push down rod, the bottom fixedly connected with sample needle of limit cap, the sample needle is established the location syringe needle, the both ends of limit cap run through the spout, the bottom overlap joint of limit cap is in the top of stopper, the bottom fixedly connected with drill point of sample needle.

2. The puncture sampler for oncology department according to claim 1, wherein the positioning needle puncturing part comprises a hollow exposed tube, the hollow exposed tube is sleeved in the sleeve body, fixed semi-rings are arranged below two sides of the inner wall of the hollow exposed tube, connecting sheets are fixedly connected with the bottoms of the fixed semi-rings, a sleeve ring is fixedly connected with the bottoms of the two connecting sheets, a connecting sleeve is fixedly connected with the bottom of the sleeve ring, a positioning needle head is fixedly connected with the bottom of the connecting sleeve, a through hole is arranged on the positioning needle head, sliding grooves are uniformly arranged on the left side and the right side of the positioning needle head, arc-shaped protrusions are arranged above the front side and the rear side of the positioning needle head, and the outer side surfaces of the arc-shaped protrusions are in contact with the extrusion plates on the same side of the two arc-shaped plates.

3. The puncture sampler for oncology department of claim 1, wherein the limit cap comprises a rod body, an annular slide rail is sleeved on the rod body, sliding blocks are slidably connected to the left side and the right side of the annular slide rail, two sliding blocks are correspondingly arranged, and a positioning slide bar is arranged on each of the two sliding blocks, and a movable space is reserved between the positioning slide bar and the sliding blocks.

4. The puncture sampler for oncology department according to claim 1, wherein the sampling needle comprises two arc-shaped pieces, the two arc-shaped pieces are attached to the surface of the rod body, and the top of the arc-shaped pieces is fixedly connected with the bottom of the sliding block.

5. The puncture sampler for oncology department according to claim 1, wherein the protection tube comprises a protection sleeve, a protection cap is sleeved at the bottom end of the protection sleeve, arc-shaped guide rails are arranged on the inner wall of the protection sleeve, wave grooves are correspondingly arranged on the inner walls of the two arc-shaped guide rails, and a end of the displacement rod is sleeved in the wave grooves.

6. The puncture sampler for oncology department according to claim 3, characterized in that the sliding block is provided with a protrusion on the outer side, the protrusion is provided with a displacement rod on the outer side, and the bottom of the sliding block is overlapped on the top of the limiting block.

7. The puncture sampler for oncology department according to claim 4, wherein the surface of the arc-shaped insertion strip is provided with a convex blade, and one side of the convex blade is provided with a cutting edge.

8. The puncture sampler for oncology department according to claim 4, wherein the arc-shaped insertion strips are fixedly connected to the opposite sides of the arc-shaped pieces and are sleeved in the sampling grooves formed in the rod body.

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