CN111544055A - Medical sampling device with liquid blocking and ventilation functions - Google Patents
Medical sampling device with liquid blocking and ventilation functions Download PDFInfo
- Publication number
- CN111544055A CN111544055A CN202010401748.8A CN202010401748A CN111544055A CN 111544055 A CN111544055 A CN 111544055A CN 202010401748 A CN202010401748 A CN 202010401748A CN 111544055 A CN111544055 A CN 111544055A
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- tube
- sampling
- sampling tube
- liquid
- blocking
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- 238000005070 sampling Methods 0.000 title claims abstract description 96
- 239000007788 liquid Substances 0.000 title claims description 19
- 230000000903 blocking effect Effects 0.000 title claims description 16
- 238000009423 ventilation Methods 0.000 title description 3
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 239000012528 membrane Substances 0.000 claims abstract description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 230000035699 permeability Effects 0.000 claims 5
- 239000008280 blood Substances 0.000 abstract description 12
- 210000004369 blood Anatomy 0.000 abstract description 12
- 241000282414 Homo sapiens Species 0.000 abstract description 11
- 206010028980 Neoplasm Diseases 0.000 description 2
- 230000001575 pathological effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010827 pathological analysis Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000010882 preoperative diagnosis Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
- A61B10/0275—Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0283—Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a medical sampling device with a liquid-blocking and ventilating function, which comprises a sampling tube, a puncture needle tube detachably arranged at the front end of the sampling tube and provided with a sampling opening on the surface, a negative pressure box detachably arranged on an air exhaust opening on the side surface of the sampling tube and a cutting mechanism arranged in the sampling tube in a sliding manner, wherein an elastic membrane is arranged at the air exhaust opening on the side surface of the sampling tube, a liquid-blocking and ventilating mechanism is arranged at the joint of the puncture needle tube and the sampling tube and comprises a sealing gasket and a liquid-blocking and ventilating membrane arranged on the sealing gasket, the sealing gasket is disc-shaped, and a first rod hole for a cutter rod to pass through is arranged on the right side of the sealing gasket. According to the invention, the liquid-blocking and ventilating mechanism is arranged at the joint of the puncture needle tube and the sampling tube, so that human tissues and blood can be prevented from entering and polluting the sampling tube, and the problem that the sampling tube in the prior art is polluted by the human tissues or the blood is solved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a medical sampling device with liquid blocking and ventilation functions.
Background
The tumor seriously threatens the life and health of human beings, the determination of preoperative diagnosis results is related to the determination of an operation scheme, and in medical clinical work, a pathological specimen is usually required to be obtained by puncturing, and pathological diagnosis is made through the examination of the pathological specimen. The human tissue or blood in the sampling tube can get into in the sampling tube in the sample of current puncture sampling device, leads to the sampling tube to receive the pollution, inconvenient secondary usage.
Disclosure of Invention
In view of the above, the present invention provides a medical sampling device with liquid-blocking and gas-permeable functions, wherein a liquid-blocking and gas-permeable mechanism is disposed at a connection between a puncture needle tube and a sampling tube, so as to prevent human tissue and blood from entering and contaminating the sampling tube, and solve the problem that the sampling tube in the prior art is contaminated by human tissue or blood.
The invention is embodied by the following technical scheme: a medical sampling device with liquid blocking and air permeating functions comprises a sampling tube, a puncture needle tube detachably arranged at the front end of the sampling tube and provided with a sampling opening on the surface, a negative pressure box detachably arranged on an air exhaust opening on the side surface of the sampling tube and a cutting mechanism arranged in the sampling tube in a sliding manner, wherein an elastic membrane is arranged at the air exhaust opening on the side surface of the sampling tube, and a liquid blocking and air permeating mechanism is arranged at the joint of the puncture needle tube and the sampling tube;
an air suction nozzle is arranged at an air suction opening of the sampling tube, and a connecting part for connecting an elastic membrane and a first external thread for connecting the negative pressure shell are arranged on the outer wall of the air suction nozzle from outside to inside; the outer wall of the connecting part is provided with a plurality of annular grooves with triangular sections;
the cutting mechanism comprises a cutting knife which can be arranged in the inner cavities of the sampling tube and the puncture needle tube in a sliding way and a knife handle which is detachably arranged at the lower end of the cutting knife and is convenient for operating the cutting knife at the outer side of the bottom of the sampling tube; the cutting knife comprises a knife bar and a connecting block which is arranged at the top end of the knife bar and used for connecting a blade, and the blade is a cylindrical surface blade;
the liquid blocking and ventilating mechanism comprises a sealing gasket and a liquid blocking and ventilating film arranged on the sealing gasket, the sealing gasket is disc-shaped, a first rod hole convenient for the cutter bar to pass through is formed in the position, corresponding to the cutter bar, of the right side of the sealing gasket, an air vent convenient for ventilating is formed in the position, corresponding to the inner cavity of the puncture needle tube, of the left side of the sealing gasket, and a counter bore convenient for containing the liquid blocking and ventilating film is formed in the upper end of the air vent.
Further, the lower end of the cutter bar extends out of the lower end of the sampling tube and is detachably connected with the cutter handle; the cutter bar, the blade and the connecting block are all made of stainless steel.
Furthermore, the top end of the blade is connected with the cutter bar through a connecting block, the lower end of the blade is provided with a cutting edge, and the outer wall of the blade is connected with the inner wall of the puncture needle tube in a sliding manner.
Furthermore, the puncture needle tube comprises a needle head, a needle tube and a connecting disc which are integrally arranged, the top end of the needle tube is provided with the needle head, the outer wall of the lower end of the needle tube is provided with the connecting disc, and the outer wall of one side of the upper part of the needle tube is provided with the sampling port.
Furthermore, the sampling tube is a cylinder with an opening at the upper end, the outer wall of the upper part of the sampling tube is provided with a first external thread for connecting the sampling needle through a thread sleeve, the middle part of one side of the sampling tube is provided with the air suction opening, and the bottom of the lower end of the sampling tube is provided with a second rod hole for the cutter bar of the cutter to pass through; and a sealing ring groove convenient for placing a sealing ring is arranged on the inner wall of the rod hole.
Furthermore, the negative pressure box comprises an integrally arranged box body, an air suction joint arranged on one side of the box body and a pipe joint arranged on the other side of the box body and connected with the air suction nozzle.
Furthermore, the inside of coupling is provided with and is used for compressing tightly the clamping ring of elasticity membrane, the clamping ring is close to elasticity membrane side is provided with the cushion.
The invention has the beneficial effects that: the liquid-blocking and ventilating mechanism is arranged at the joint of the puncture needle tube and the sampling tube, so that human tissues and blood can be prevented from entering and polluting the sampling tube, and the problem that the sampling tube in the prior art is polluted by the human tissues or the blood is solved; the elastic membrane is arranged at the joint of the negative pressure box and the sampling tube, so that blood is prevented from permeating into the negative pressure box from the sampling tube and polluting the negative pressure box after permeating into the liquid blocking and ventilating mechanism, and the negative pressure box is convenient to recycle; the cutting knife is made of stainless steel materials, so that the cutting knife can be conveniently detached and reused after being sterilized.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the cutting mechanism of the present invention;
FIG. 3 is a schematic structural view of the negative pressure box of the present invention when the sampling tube is not under negative pressure;
FIG. 4 is a schematic structural view of the negative pressure box of the sampling tube of the present invention;
FIG. 5 is a schematic view of the structure of the connection between the sampling tube and the puncture needle tube of the present invention.
In the figure: 1. the device comprises a sampling tube, 2, a puncture needle tube, 3, a cutting mechanism, 4, a negative pressure box, 5, an elastic membrane, 6, a thread sleeve, 7, a sealing gasket, 8, a liquid-blocking and gas-permeable membrane, 11, an air suction nozzle, 31, a knife handle, 32, a knife rod, 33, a connecting block, 34 and a blade.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
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, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a medical sampling device with liquid-blocking and air-permeable functions comprises a sampling tube 1, a puncture needle tube 2 which is detachably arranged at the front end of the sampling tube 1 and is provided with a sampling opening on the surface, a negative pressure box 4 which is detachably arranged on an air suction opening on the side surface of the sampling tube 1 and a cutting mechanism 3 which is arranged in the sampling tube 1 in a sliding manner, wherein an elastic membrane 5 is arranged at the air suction opening on the side surface of the sampling tube 1, and a liquid-blocking and air-permeable mechanism is arranged at the joint of the puncture needle tube 2 and the sampling tube 1; the negative pressure box can enable negative pressure to be generated on a sampling port of the puncture needle tube to suck sample tissues into the puncture needle tube, then the cutting mechanism is pulled, the sample tissues are cut off through a cutter on the cutting mechanism, then the puncture needle tube is detached to pour out the sample tissues, the liquid blocking and ventilating mechanism can prevent human body tissues and blood from entering and polluting the sampling tube, the elastic membrane is arranged to ensure that the sampling tube and the negative pressure box can be separated while negative pressure is formed in the sampling tube, and the sampling tube and the negative pressure box can be prevented from entering and polluting the negative pressure box from the sampling tube after blood permeates the liquid blocking and ventilating mechanism;
an air suction nozzle 11 is arranged at an air suction opening of the sampling tube 1, and a connecting part for connecting the elastic membrane 5 and a first external thread for connecting the negative pressure shell are arranged on the outer wall of the air suction nozzle from outside to inside; the outer wall of the connecting part is provided with a plurality of annular grooves with triangular sections; the outer wall of the connecting part is provided with a plurality of annular grooves with triangular sections; the annular groove can prevent the elastic membrane from sliding off when the elastic membrane is sleeved on the air exhaust nozzle;
the cutting mechanism 3 comprises a cutting knife which can be arranged in the inner cavities of the sampling tube 1 and the puncture needle tube 2 in a sliding way and a knife handle 31 which is detachably arranged at the lower end of the cutting knife and is convenient for operating the cutting knife at the outer side of the bottom of the sampling tube 1; after the tissue sampling is finished, the knife handle can be detached to take out the knife bar and the knife blade for cleaning, disinfection and sterilization;
the cutting knife comprises a knife bar 32 and a connecting block 33 which is arranged at the top end of the knife bar 32 and is used for connecting a blade 34, and the blade 34 is a cylindrical surface blade 34; the cutting edge of the blade is tightly attached to the inner wall of the puncture needle tube, so that the sample tissue of the tumor can be cut off quickly;
the liquid-blocking and ventilating mechanism comprises a sealing gasket 7 and a liquid-blocking and ventilating film 8 arranged on the sealing gasket 7, the sealing gasket 7 is disc-shaped, a first rod hole convenient for the cutter bar 32 to pass through is formed in the position, corresponding to the cutter bar 32, of the right side of the sealing gasket 7, a vent hole convenient for ventilating is formed in the position, corresponding to the inner cavity of the puncture needle tube 2, of the left side of the sealing gasket 7, and a counter bore convenient for containing the liquid-blocking and ventilating film 8 is formed in the upper end of; the sealing gasket can improve the air tightness between the puncture needle tube and the sampling tube, and the liquid-blocking breathable film can effectively block human tissues and blood in the puncture needle tube, so that the human tissues and the blood are prevented from entering and polluting the sampling tube.
In this embodiment, the lower end of the cutter bar 32 extends out of the lower end of the sampling tube 1 and is detachably connected with the cutter handle 31; the cutter bar, the blade and the connecting block are all made of stainless steel.
In this embodiment, the top end of the blade 34 is connected to the knife bar 32 through a connecting block 33, the lower end of the blade is provided with a cutting edge, and the outer wall of the blade 34 is slidably connected to the inner wall of the puncture needle tube 2.
This embodiment, puncture needle tube 2 includes integrative syringe needle, needle tubing and the connection pad that sets up, the top of needle tubing is provided with the outer wall of syringe needle, lower extreme is provided with the outer wall of one side on connection pad, upper portion is provided with the sample connection.
In this embodiment, the sampling tube 1 is a cylinder with an opening at the upper end, the outer wall of the upper part of the sampling tube 1 is provided with a first external thread for connecting the sampling needle through a thread sleeve 6, the middle part of one side is provided with the extraction opening, and the bottom of the lower end is provided with a second rod hole for the cutter bar 32 of the cutting knife to pass through; the inner wall of the second rod hole is provided with a sealing ring groove for placing a sealing ring conveniently; when the puncture needle tube is disassembled and assembled, the thread sleeve is screwed on or out, so that the puncture needle tube can be fixed or replaced, and the sealing ring is arranged to ensure the air tightness of the whole sampling device.
In this embodiment, the negative pressure box 4 includes an integrally formed box body, an air suction connector disposed on one side of the box body, and a pipe connector disposed on the other side of the box body and connected to the air suction nozzle 11; the air pumping joint is connected with an air pump or an air pumping cylinder so as to pump the negative pressure box to the negative pressure.
In this embodiment, a pressing ring for pressing the elastic membrane 5 is arranged inside the pipe joint, and an elastic pad is arranged on the side of the pressing ring close to the elastic membrane 5; the elastic cushion can prevent the pressing ring from being in hard contact with the elastic membrane to cause the damage of the elastic membrane.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A medical sampling device with liquid-blocking and air-permeable functions is characterized by comprising a sampling tube, a puncture needle tube detachably arranged at the front end of the sampling tube and provided with a sampling opening on the surface, a negative pressure box detachably arranged on an air suction opening on the side surface of the sampling tube and a cutting mechanism arranged in the sampling tube in a sliding manner, wherein an elastic membrane is arranged at the air suction opening on the side surface of the sampling tube, and a liquid-blocking and air-permeable mechanism is arranged at the joint of the puncture needle tube and the sampling tube;
an air suction nozzle is arranged at an air suction opening of the sampling tube, and a connecting part for connecting an elastic membrane and a first external thread for connecting the negative pressure shell are arranged on the outer wall of the air suction nozzle from outside to inside; the outer wall of the connecting part is provided with a plurality of annular grooves with triangular sections;
the cutting mechanism comprises a cutting knife which can be arranged in the inner cavities of the sampling tube and the puncture needle tube in a sliding way and a knife handle which is detachably arranged at the lower end of the cutting knife and is convenient for operating the cutting knife at the outer side of the bottom of the sampling tube; the cutting knife comprises a knife bar and a connecting block which is arranged at the top end of the knife bar and used for connecting a blade, and the blade is a cylindrical surface blade;
the liquid blocking and ventilating mechanism comprises a sealing gasket and a liquid blocking and ventilating film arranged on the sealing gasket, the sealing gasket is disc-shaped, a first rod hole convenient for the cutter bar to pass through is formed in the position, corresponding to the cutter bar, of the right side of the sealing gasket, an air vent convenient for ventilating is formed in the position, corresponding to the inner cavity of the puncture needle tube, of the left side of the sealing gasket, and a counter bore convenient for containing the liquid blocking and ventilating film is formed in the upper end of the air vent.
2. The medical sampling device with the functions of liquid resistance and air permeability as claimed in claim 1, wherein the lower end of the cutter bar extends out of the lower end of the sampling tube and is detachably connected with the cutter handle; the cutter bar, the blade and the connecting block are all made of stainless steel.
3. The medical sampling device with the functions of liquid blocking and air permeability as claimed in claim 1, wherein the top end of the blade is connected with the cutter bar through a connecting block, the lower end of the blade is provided with a blade edge, and the outer wall of the blade is connected with the inner wall of the puncture needle tube in a sliding manner.
4. The medical sampling device with the liquid-blocking and air-permeable functions as claimed in claim 1, wherein the puncture needle tube comprises a needle head, a needle tube and a connecting disc which are integrally arranged, the needle head is arranged at the top end of the needle tube, the connecting disc is arranged on the outer wall of the lower end of the needle tube, and the sampling port is arranged on the outer wall of one side of the upper part of the needle tube.
5. The medical sampling device with the functions of liquid blocking and air permeability as claimed in claim 1, wherein the sampling tube is a cylinder with an open upper end, the outer wall of the upper part of the sampling tube is provided with a first external thread for connecting the sampling needle through a threaded sleeve, the middle part of one side is provided with the extraction opening, and the bottom of the lower end is provided with a second rod hole for the cutter rod of the cutting knife to pass through; and a sealing ring groove convenient for placing a sealing ring is arranged on the inner wall of the rod hole.
6. The medical sampling device with the functions of liquid resistance and air permeability as claimed in claim 1, wherein the negative pressure box comprises a box body, an air suction connector arranged on one side of the box body and a pipe joint arranged on the other side of the box body and connected with the air suction nozzle.
7. The medical sampling device with the functions of liquid resistance and air permeability according to claim 6, wherein a pressing ring for pressing the elastic membrane is arranged inside the pipe joint, and an elastic cushion is arranged on the side, close to the elastic membrane, of the pressing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401748.8A CN111544055A (en) | 2020-05-13 | 2020-05-13 | Medical sampling device with liquid blocking and ventilation functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401748.8A CN111544055A (en) | 2020-05-13 | 2020-05-13 | Medical sampling device with liquid blocking and ventilation functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111544055A true CN111544055A (en) | 2020-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010401748.8A Pending CN111544055A (en) | 2020-05-13 | 2020-05-13 | Medical sampling device with liquid blocking and ventilation functions |
Country Status (1)
| Country | Link |
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| CN (1) | CN111544055A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111973235A (en) * | 2020-08-31 | 2020-11-24 | 中国人民解放军总医院第一医学中心 | Kidney puncture sampling device |
| WO2023134183A1 (en) * | 2022-01-13 | 2023-07-20 | 苏州大学附属儿童医院 | Liquid specimen sampling device used in operation |
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| US20090112119A1 (en) * | 2007-10-31 | 2009-04-30 | Kim Stanley I | Rotating biopsy device and biopsy robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111973235A (en) * | 2020-08-31 | 2020-11-24 | 中国人民解放军总医院第一医学中心 | Kidney puncture sampling device |
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| WO2023134183A1 (en) * | 2022-01-13 | 2023-07-20 | 苏州大学附属儿童医院 | Liquid specimen sampling device used in operation |
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Application publication date: 20200818 |