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CN112674805B - Breast tumor sampler - Google Patents

Breast tumor sampler Download PDF

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Publication number
CN112674805B
CN112674805B CN202011549874.4A CN202011549874A CN112674805B CN 112674805 B CN112674805 B CN 112674805B CN 202011549874 A CN202011549874 A CN 202011549874A CN 112674805 B CN112674805 B CN 112674805B
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China
Prior art keywords
needle
needle cylinder
cylinder
wall
push
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CN202011549874.4A
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CN112674805A (en
Inventor
潘沁汶
罗佳
曾真
王永菊
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First Affiliated Hospital of Army Medical University
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First Affiliated Hospital of Army Medical University
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Abstract

The invention discloses a breast tumor sampler, which comprises a needle cylinder, wherein two ends of the needle cylinder are respectively a pushing end and a pushing end; the needle cylinder is internally provided with a needle seat, and the sampling needle is detachably connected with one side of the needle seat close to the push-out end; the push rod is inserted into the needle cylinder from the propelling end and is connected with the needle seat; the limiting block is rotatably arranged on the inner wall of the needle cylinder and can rotate to the inner wall of the needle cylinder towards the push-out end direction, and the needle seat can push the limiting block to rotate towards the push-out end direction; one end of the reset spring is connected with the pushing end of the needle cylinder, and the other end of the reset spring is abutted with the limiting block; and the cutting knife is rotatably arranged on the inner wall of the pushing end of the needle cylinder through a rotating shaft. Above-mentioned breast tumour sampler under the condition of user one-hand operation, can hold the dynamics better, promotes the security and the convenience of operation.

Description

Breast tumor sampler
Technical Field
The invention particularly relates to a breast tumor sampler.
Background
Breast tumors refer to tumors occurring in the breast, which are classified into benign tumors and malignant tumors, and are common diseases of women, and are usually expressed as breast lumps, i.e., accessible nodules of the breast. Surgical treatment is one of the important treatment modes of breast tumors, and comprises fibroadenomectomy, breast duct dissection and the like.
Before and after the operation of breast tumor, sampling biopsy is needed to be carried out on the pathological tissue as an important basis for pathological diagnosis. Among the prior art, the sampler passes through reset spring and connects the sampling needle, can reach the action that the one hand also can operate the needle and receive a needle, nevertheless in actual operation, receives reset spring's resistance during the needle insertion all the time, and medical personnel do not hold well to the power, appears operating improper situation easily and leads to increasing patient's misery.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a breast tumor sampler which can better control the force without being resisted by a spring during needle insertion.
In order to achieve the purpose, the invention is realized by the following technical scheme: a breast tumor sampler comprises a needle cylinder, wherein two ends of the needle cylinder are respectively a pushing end and a pushing end;
the needle cylinder is internally provided with a needle seat, and the sampling needle is detachably connected with one side of the needle seat close to the push-out end;
the push rod is inserted into the needle cylinder from the propelling end and is connected with the needle seat;
the limiting block is rotatably arranged on the inner wall of the needle cylinder and can rotate into the inner wall of the needle cylinder towards the push-out end direction, and the needle seat can push the limiting block to rotate towards the push-out end direction;
one end of the reset spring is connected with the inner wall of the needle cylinder, the other end of the reset spring is connected with a stop block, and the stop block is abutted with one side of the limiting block, which is far away from the needle seat; and
the cutting knife is rotatably arranged on the inner wall of the pushing-out end of the needle cylinder through a rotating shaft, a gear is arranged on the rotating shaft, a cavity is arranged in the inner wall of the needle cylinder, a transmission rod is arranged, one end of the transmission rod is connected with the push rod, and a rack meshed with the gear is arranged at the other end of the transmission rod.
When the sampling device is not used before sampling, the stop block is abutted to the limiting block by the return spring. During the sample, the cylinder is held to the palm to press the push rod with the finger, with needle file and sampling needle orientation release end promotion, the push rod should drive the cutting knife through the transmission and inwards rotate, it is the needle that takes a sample that can stretch out, when the needle that takes a sample is advanced to accomplish, the needle file promotes the stopper and imbeds to the cylinder inner wall in, reset spring promotes the needle file to the release end afterwards, the needle that takes a sample moves back and brings the pathological change tissue into the cylinder in, the push rod drives the cutting knife rotation simultaneously, cuts off it.
The breast tumor sampler has the beneficial effects that: can not receive the resilience force when the needle is advanced, can hold the dynamics better, can conveniently move back the needle under reset spring's promotion after the needle is advanced and is accomplished to the pathological change tissue that will take out cuts off, makes medical personnel operate convenient safety more when taking a sample to the tumour.
Furthermore, a negative pressure hole is formed in one end, far away from the needle cylinder, of the sampling needle in the axial direction, an elastic air bag is arranged on the needle cylinder, and a pressing block capable of extruding the air bag is connected to the push rod;
the air bag is provided with an air inlet hole and an air outlet hole, and is provided with one-way air valves, and the air inlet hole is connected with the negative pressure hole of the sampling needle through a negative pressure pipe.
When the needle is inserted, the push rod pushes the pressing block to extrude the air in the air bag out of the air outlet hole, after the sampling needle enters the breast, the negative pressure hole at the front end is inserted into the pathological change tissue, when the needle is withdrawn, the elastic air bag is loosened by the pressing block, and the cut pathological change tissue is sucked and pulled out by the negative pressure hole.
Further, be equipped with the iodine tincture pipe on the outer wall of cylinder, the release end detachably of cylinder is equipped with the absorbent cotton of arranging along circumference, the release end outer wall of cylinder is equipped with the medicine dropping pipe along circumference, the medicine dropping pipe is linked together with the iodine tincture pipe, and the junction is equipped with the check valve, a plurality of medicine holes that drip have been seted up along circumference to one side of medicine dropping pipe orientation absorbent cotton.
Adding iodine into iodine tube, opening one-way valve before needle insertion, dripping iodine into absorbent cotton from the dripping hole of the dripping tube, and sterilizing the part to be inserted.
Furthermore, a plurality of sampling needles which are uniformly arranged along the circumferential direction are arranged on the needle base.
When the needle is inserted, a plurality of sampling needles are inserted, and the comprehensiveness and the accuracy of diagnosis are improved in a multi-point sampling mode.
Furthermore, a limiting rod is axially arranged in the needle cylinder, penetrates through the needle seat and the stop block, and two ends of the limiting rod are respectively and fixedly arranged on the inner walls of the two ends of the needle cylinder.
The limiting rod is used for limiting the movement tracks of the needle seat and the stop block and can only move along the axial direction of the needle cylinder.
Further, the needle cylinder comprises two sections of cylinders which are connected in a threaded manner.
Two sections of cylinders connected through threads are convenient to unscrew and disassemble the sampling needle.
Furthermore, a deflector rod connected with the limiting block is arranged on the outer wall of the needle cylinder.
The driving lever is used for opening the limiting block and limiting the return spring before use.
Furthermore, the cutting knife is symmetrically provided with two cutting knives, one end of each cutting knife close to each other is bent towards the direction of keeping away from the needle cylinder, and one end of each cutting knife far away from each other is provided with a rotating shaft and is connected with the push rod through a transmission rod.
When the needle is inserted, the push rod drives the two cutting knives to rotate inwards, and when the needle is withdrawn, the two cutting knives rotate towards the middle, so that the pulled-out pathological tissues are conveniently cut.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. The elements or parts are not necessarily drawn to scale in all figures.
FIG. 1 is a front view of a breast tumor sampler according to an embodiment of the present invention;
FIG. 2 is a schematic view of the cutting blade of the breast tumor sampler shown in FIG. 1 at A;
FIG. 3 is a schematic view of the connection between the sampling needle and the air bag of the breast tumor sampler shown in FIG. 1;
FIG. 4 is a schematic view of the iodine tube and the dropping tube of the breast tumor sampler shown in FIG. 1;
reference numerals:
10-needle cylinder, 11-needle seat, 12-limiting rod, 20-pushing rod, 21-driving rod, 22-rack, 23-gear, 24-pressing block, 30-sampling needle, 300-negative pressure hole, 40-limiting block, 41-driving rod, 50-reset spring, 51-stop block, 60-cutting knife, 61-rotating shaft, 70-air bag, 700-air inlet hole, 701-air outlet hole, 71-negative pressure tube, 80-iodine wine tube, 81-medicine dropping tube, 810-medicine dropping hole, 811-one-way valve and 82-absorbent cotton.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1 to 4, the present invention provides a breast tumor sampler, which includes a syringe 10, a sampling needle 30, a push rod 20, a stopper 40, a return spring 50 and a cutter 60, wherein the push rod 20 is pressed to insert the sampling needle 30 into a breast for sampling, the return spring 50 withdraws the sampling needle 30, and the cutter 60 cuts off a lesion tissue.
Specifically, the two ends of the needle cylinder 10 are respectively a pushing end and a pushing end, a needle seat 11 is arranged in the needle cylinder 10, one side close to the pushing end is connected with the push rod 20, one side close to the pushing end is detachably connected with the sampling needle 30, and a user can hold the needle cylinder 10 by hand and press the push rod 20 to insert the sampling needle 30 into a breast.
The inner wall of the needle cylinder 10 is provided with a limiting block 40 which is connected in a rotating mode, and the limiting block 40 can rotate towards the direction of the push-out end and is embedded into the inner wall of the needle cylinder 10. One end of the return spring 50 is fixedly arranged on the inner wall of the syringe 10, and the other end is provided with a stopper 51, and the stopper 51 is abutted against the limiting block 40. During needle insertion, the push rod 20 pushes the needle seat 11 to move towards the pushing-out end, the needle seat 11 is in contact with the limiting block 40, the limiting block 40 is pushed to rotate to the inner wall of the needle cylinder 10, needle insertion is completed at the moment, the stop block 51 is attached to the needle seat 11, and under the action of the return spring 50, the stop block 51 pushes the needle seat 11 to move towards the pushing-in end, and needle withdrawal is completed. A limiting rod 12 is axially arranged in the needle cylinder 10, the limiting rod 12 penetrates through the needle seat 11 and the stop block 51, and two ends of the limiting rod 12 are respectively connected with two ends of the needle cylinder 10, so that the movement tracks of the needle seat 11 and the stop block 51 can be limited. In this embodiment, the outer wall of the syringe 10 is provided with a shift lever 41 connected with the limiting block 40, which can drive the limiting block 40 to rotate, and after the syringe is used, the limiting block 40 can be rotated and reset conveniently for next use.
The cutting knife 60 is rotatably arranged on the inner wall of the pushing-out end of the needle cylinder 10 through a rotating shaft 61, a cavity is arranged in the inner wall of the needle cylinder 10, a transmission rod 21 is axially arranged in the cavity, a rack 22 is arranged at one end, close to the pushing-out end, of the transmission rod 21, the other end of the transmission rod extends out of the needle cylinder 10 to be connected with the pushing rod 20, and a gear 23 meshed with the rack 22 is arranged on the rotating shaft 61. When the needle is inserted, the push rod 20 is pressed, the transmission rod 21 and the rack 22 drive the gear 23 and the rotating shaft 61 to rotate, the cutting knife 60 is rotated inwards, the sampling needle 30 can conveniently extend out of the needle cylinder 10, when the needle is withdrawn, the push rod 20 and the transmission rod 21 drive the cutting knife 60 to reset, and lesion tissues brought out by the sampling needle 30 are cut off in the resetting process. In this embodiment, a plurality of transmission gears 23 are provided in the cavity, which are sequentially arranged along the axial direction of the cylinder 10 and engaged with each other, and the rack 22 is engaged with only the first contact gear 23, thereby allowing a space for movement of the rack 22 and the transmission rod 21.
Further, two cutting knives 60 are symmetrically arranged, one ends far away from each other are connected with the inner wall of the needle cylinder 10 through rotating shafts 61, and are provided with gears 23 which are connected with the push rod 20 through transmission rods 21. The ends of the two cutting blades 60 that are close to each other have a curvature that faces away from the needle cylinder 10, and when the needle is withdrawn, the two cutting blades cut simultaneously, so that the lesion tissue can be better cut. In order to avoid dust from entering after cutting is completed, the two cutting knives 60 can close the ejection end when folded.
Specifically, the sampling needle 30 is detachably connected to the needle holder 11, and a negative pressure hole 300 is axially formed at a needle head of the sampling needle 30. The outer wall of the syringe 10 is provided with an elastic air bag 70, the air bag 70 is provided with an air outlet hole 701 and an air inlet hole 700, the air inlet hole 700 is provided with a one-way air valve which can only supply air into the air bag 70, the air inlet hole 700 is communicated with the negative pressure hole 300 through a negative pressure pipe 71, the air outlet hole 701 is provided with a one-way air valve which can only exhaust air outwards, and the push rod 20 is connected with a pressing block 24 which can extrude the air bag 70. When the push rod 20 is pressed by inserting the needle, the pressing block 24 discharges the air in the air bag 70 from the air outlet hole 701, the sampling needle 30 is inserted into the breast, and the negative pressure hole 300 cuts the lesion tissue. When withdrawing the needle, the push rod 20 drives the pressing block 24 to leave, the air bag 70 recovers under the elastic action, and the negative pressure hole 300 is in a negative pressure state, so that the cut pathological tissue can be sucked and taken out. In the embodiment, a plurality of sampling needles 30 are arranged on the needle seat 11 along the circumferential direction, and the comprehensiveness and the accuracy of diagnosis are improved in a multi-point sampling mode.
Specifically, still be equipped with iodine wine pipe 80 on the outer wall of cylinder 10, be close to be equipped with on the one end outer wall of propelling movement end along circumference and drip pencil 81, the propelling movement is served and is equipped with detachable absorbent cotton 82 along circumference, drips pencil 81 and is linked together with iodine wine pipe 80, and the junction is equipped with check valve 811, drips pencil 81 and has seted up a plurality of medicine holes 810 that drip along circumference near one side of absorbent cotton 82. Iodine is added into the iodine tube 80, the one-way valve 811 is opened before the needle insertion, and the iodine is dripped into the absorbent cotton 82 from the medicine dripping tube 81, so that the needle insertion part can be coated and disinfected firstly, and the convenience is improved.
In the present embodiment, the needle cartridge 10 includes two sections of the barrel which are screwed together, and the replacement of the sampling needle 30 and the collection of the sampled lesion tissue can be facilitated by unscrewing the barrel.
The working principle of the breast tumor sampler is as follows: the one-way valve 811 is opened first, and iodine tincture is dripped onto the absorbent cotton 82 through the medicine dripping pipe 81 to smear and sterilize the part to be injected. A user holds the needle cylinder 10 with one hand and presses the push rod 20 with the thumb to insert a needle, the push rod 20 pushes the needle seat 11, the transmission rod 21 and the pressing block 24 to move, the needle seat 11 drives the sampling needle 30 to be inserted into a breast, the limiting block 40 is pushed to rotate to the inner wall of the needle cylinder 10, and after the sampling needle 30 is inserted, the negative pressure hole 300 cuts lesion tissues. The transmission rod 21 drives the rotating shaft 61 to rotate through the rack 22 and the gear 23, so as to drive the cutting knife 60 to rotate towards the needle cylinder 10, so that the sampling needle 30 is out of the needle, and the pressing block 24 presses the gas in the air bag 70 from the air outlet 701.
After the limiting block 40 rotates to the inner wall of the needle cylinder 10, the return spring 50 pushes the needle seat 11 to enable the sampling needle 30 to withdraw, the air bag 70 returns under the elastic action to enable negative pressure to be formed in the negative pressure hole 300, lesion tissues are taken out, and the transmission rod 21 drives the cutting knife 60 to rotate downwards through the gear 23 and the rack 22, so that the lesion tissues are cut off.
Use above-mentioned breast tumour sampler, can let medical personnel one-hand operation to holding the dynamics of inserting the needle better, withdrawing the needle under the spring action after the sample, easy operation is convenient, and it is more convenient and safe to use.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (7)

1. A breast tumor sampler, comprising: the device comprises a needle cylinder, wherein a pushing end and a pushing end are respectively arranged at two ends of the needle cylinder;
the needle cylinder is internally provided with a needle seat, and the sampling needle is detachably connected with one side of the needle seat close to the push-out end;
the push rod is inserted into the needle cylinder from the propelling end and is connected with the needle seat;
the limiting block is rotatably arranged on the inner wall of the needle cylinder and can rotate into the inner wall of the needle cylinder towards the push-out end direction, and the needle seat can push the limiting block to rotate towards the push-out end direction;
one end of the reset spring is connected with the inner wall of the needle cylinder, the other end of the reset spring is connected with a stop block, and the stop block is abutted against one side of the limiting block, which is far away from the needle seat; and
the cutting knife is rotatably arranged on the inner wall of the pushing-out end of the needle cylinder through a rotating shaft, a gear is arranged on the rotating shaft, a cavity is arranged in the inner wall of the needle cylinder, a transmission rod is arranged in the cavity, one end of the transmission rod is connected with the push rod, and a rack meshed with the gear is arranged at the other end of the transmission rod;
one end of the sampling needle, which is far away from the needle cylinder, is axially provided with a negative pressure hole, the needle cylinder is provided with an elastic air bag, and the push rod is connected with a pressing block capable of extruding the air bag;
the air bag is provided with an air inlet hole and an air outlet hole, and is also provided with one-way air valves, and the air inlet hole is connected with the negative pressure hole of the sampling needle through a negative pressure pipe.
2. A breast tumor sampler as claimed in claim 1, wherein: be equipped with the iodine tincture pipe on the outer wall of cylinder, the release end detachably of cylinder is equipped with the absorbent cotton of arranging along circumference, the release end outer wall of cylinder is equipped with the medicine dropping pipe along circumference, the medicine dropping pipe is linked together with the iodine tincture pipe, and the junction is equipped with the check valve, a plurality of medicine holes that drip have been seted up along circumference towards one side of absorbent cotton to the medicine dropping pipe.
3. A breast tumor sampler as claimed in claim 1, wherein: the needle base is provided with a plurality of sampling needles which are uniformly arranged along the circumferential direction.
4. A breast tumor sampler as claimed in claim 1, wherein: and a limiting rod is arranged in the needle cylinder along the axial direction, penetrates through the needle seat and the stop block, and is fixedly arranged on the inner walls of the two ends of the needle cylinder at two ends respectively.
5. A breast tumor sampler as claimed in claim 1, wherein: the needle cylinder comprises two sections of cylinder bodies which are connected in a threaded manner.
6. A breast tumor sampler as claimed in claim 1, wherein: and a deflector rod connected with the limiting block is arranged on the outer wall of the needle cylinder.
7. A breast tumor sampler as claimed in claim 1, wherein: the cutting device is characterized in that the number of the cutting knives is two, one end, close to each other, of each cutting knife is bent towards the direction away from the needle cylinder, and the other end, away from each cutting knife, of each cutting knife is provided with a rotating shaft and is connected with the push rod through a transmission rod.
CN202011549874.4A 2020-12-24 2020-12-24 Breast tumor sampler Active CN112674805B (en)

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CN112674805B true CN112674805B (en) 2022-07-26

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CN113100839A (en) * 2021-04-22 2021-07-13 莒县中医医院 Lung tissue extraction element based on medical science inspection is used
CN115969430B (en) * 2023-02-24 2023-07-18 常州市第二人民医院 Biopsy sample sampling device for oncology clinicians

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