CN215191835U - Suction type biopsy needle with sealing system - Google Patents
Suction type biopsy needle with sealing system Download PDFInfo
- Publication number
- CN215191835U CN215191835U CN202121324708.4U CN202121324708U CN215191835U CN 215191835 U CN215191835 U CN 215191835U CN 202121324708 U CN202121324708 U CN 202121324708U CN 215191835 U CN215191835 U CN 215191835U
- Authority
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- China
- Prior art keywords
- needle
- screw cap
- sealing plug
- inner core
- core silk
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 55
- 238000001574 biopsy Methods 0.000 title claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 22
- 210000002445 nipple Anatomy 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000005070 sampling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 206010001526 Air embolism Diseases 0.000 description 6
- 201000003144 pneumothorax Diseases 0.000 description 6
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001575 pathological effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000010562 histological examination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a take suction type biopsy needle of sealing system, including the tee bend, its characterized in that: the utility model discloses a three-way inner needle, including tee bend, outer needle file, three-way inside sliding connection has the inner core silk, the right side fixed mounting of inner core silk has the inner needle, the right side fixedly connected with sealing plug two of inner core silk, three-way left side threaded connection has public female screw cap, the left side fixedly connected with sealing plug one of public female screw cap, the side opening has been seted up to the surface of inner needle, the left side block of inner core silk is connected with the screw cap, the screw cap is threaded connection with public female screw cap, inner core silk and sealing plug one are sliding connection, inner core silk and public female screw cap are sliding connection, the utility model discloses, have the characteristics of the practicality is strong and self-cleaning inner chamber.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically be a take sealing system's suction formula biopsy needle.
Background
With the rapid development of medical technology and imaging, the nature of the disease and the treatment method determined by the nature of the disease determine the treatment effect of the disease. Pathologic biopsy has become the gold standard that determines the nature of the disease, and the structure of biopsy needles has been continuously improved and perfected as a primary tool for performing pathologic biopsies.
In the pathological biopsy operation process, a biopsy needle needs to be inserted into a tissue to be detected, and continuous negative pressure is generated to suck pathological change tissues into a biopsy needle groove for taking out, various existing biopsy needles are widely applied due to the advantages that the biopsy needle is convenient to puncture, small in damage and capable of entering the deep part of the tissue, but in the practical application process, when the existing suction type biopsy needle is used, an inner needle and an outer needle are punctured to a focus position together, then the inner needle is completely drawn out of the outer needle, then an aspirator is connected to an outer needle base for negative pressure suction, the operation is complex, and during the period that the inner needle is drawn out to be connected with the aspirator, an inner hole of the outer needle is directly communicated with the outside, pneumothorax or air embolism is easily caused, and certain risk is achieved.
Therefore, there is a need for an aspiration biopsy needle with a sealing system that is robust and self-cleaning of the lumen.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take sealing system's suction formula biopsy needle to solve the problem that proposes among the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a take suction type biopsy needle of sealing system, includes the tee bend, its characterized in that: the utility model discloses a three-way needle, including tee bend, outer needle file, inner side fixed mounting, outer needle file, the inside fixed mounting of nipple has outer needle, the inside sliding connection of tee bend has interior core silk, the right side fixed mounting of interior core silk has interior needle, the right side fixedly connected with sealing plug two of interior core silk, the left side threaded connection of tee bend has public female screw cap, the left side fixedly connected with sealing plug one of public female screw cap.
According to the technical scheme, the outer surface of the inner needle is provided with the side hole, the left side of the inner core wire is clamped and connected with the threaded cap, and the threaded cap is in threaded connection with the male threaded cap and the female threaded cap.
According to the technical scheme, the inner core wire is in sliding connection with the first sealing plug, and the inner core wire is in sliding connection with the male and female threaded caps.
According to the technical scheme, the outer surface of the outer needle is connected with the positioner in a sliding mode, and the upper portion of the positioner is connected with the fastening screw in a threaded mode.
According to the technical scheme, the pipeline below the tee joint is connected with the cleaning pipe, and cleaning liquid is stored in the cleaning pipe.
According to the technical scheme, the first sealing plug and the second sealing plug are both made of silica gel.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model is characterized in that the utility model,
(1) by arranging the first sealing plug, the second sealing plug, the male and female threaded caps and the tee joint, during puncture, a gap between the inner needle and the outer needle is blocked by the second sealing plug, so that the interior is kept sealed, air cannot enter a human body through a gap between the inner needle and the outer needle, during sampling, the through hole of the tee joint is connected with the negative pressure aspirator, the threaded cap is rotated and pulled, the threaded cap moves leftwards to drive the inner core thread to move leftwards, the inner needle is further driven to move leftwards, the tail end of the male and female threaded cap is provided with the first sealing plug, so that the left side of the male and female threaded cap is kept sealed, air cannot enter the interior of the biopsy needle through the male and female threaded cap to reach the human body, through double sealing, sealing of the inner needle and the outer needle during puncture and sampling is ensured, and pneumothorax or air embolism is avoided;
(2) through the arrangement of the side hole, the tee joint and the inner core wire, when sampling is carried out, the through hole of the tee joint is connected with the negative pressure aspirator, the threaded cap is unscrewed and pulled, so that the inner core wire moves leftwards, the inner needle is further driven leftwards, the side hole of the inner needle is pulled to the left side, at the moment, the side hole is aligned with the through hole above the tee joint, at the moment, a sample can be aspirated to the inner cavity of the inner needle by the negative pressure aspirator, the negative pressure aspiration function is realized, meanwhile, because the inner core wire is fixedly arranged at the tail part of the left side of the inner needle, the solid sample cannot be aspirated into the negative pressure aspirator, the damage of the solid sample can be avoided, when the sample is pushed into the sample storage container from the inner needle for histological examination, the sample is still intact, and the diagnosis positive rate can be effectively improved;
(3) through being provided with the cleaning tube, the cleaning solution, during the sample, unscrew the screw cap and remove left, it slides left to drive the inner core silk, make two sealing plugs remove left simultaneously, the inside of cleaning tube is impressed with the outer air of tee bend top through-hole, at this moment under the extrusion of air, the inside cleaning solution of cleaning tube can be extruded and flow in the three-way inside, the left side of sealing plug two, after the sample, promote the screw cap, make the cleaning solution be full of the inner chamber, wash the inner chamber, can utilize the cleaning solution to release all liquid and solid specimens, increase the sample volume, wash the biopsy needle inner chamber simultaneously, prevent that the remaining blood of inner chamber from solidifying and causing the jam, influence next sample.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall front cross-sectional structure of the present invention;
FIG. 2 is a schematic enlarged view of the area A of the present invention;
FIG. 3 is a schematic view of the inner needle of the present invention in a retracted position;
in the figure: 1. a threaded cap; 2. a male and female threaded cap; 3. sealing a first plug; 4. an inner core wire; 5. a tee joint; 6. Cleaning the tube; 7. a second sealing plug; 8. an outer needle base; 9. a positioner; 10. tightening the screw; 11. a nipple; 12. An inner needle; 13. an outer needle; 14. cleaning liquid; 15. side holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a suction type biopsy needle of sealed system in area, includes tee bend 5, its characterized in that: an outer needle seat 8 is fixedly arranged on the right side of a tee joint 5, a nipple 11 is fixedly arranged on the inner side of the outer needle seat 8, an outer needle 13 is fixedly arranged inside the nipple 11, an inner core thread 4 is connected inside the tee joint 5 in a sliding mode, an inner needle 12 is fixedly arranged on the right side of the inner core thread 4, a sealing plug two 7 is fixedly connected on the right side of the inner core thread 4, a male and female threaded cap 2 is connected with the left side of the tee joint 5 in a threaded mode, a sealing plug one 3 is fixedly connected on the left side of the male and female threaded cap 2, before puncture, the threaded cap 1 and the male and female threaded cap 2 are locked firstly, the inner needle 12 extends out of the outer needle 13 at the moment, the sealing plug two 7 is located on the left side of the outer needle 13, a gap between the outer needle 13 and the inner needle 12 is blocked, it is guaranteed that the inner needle and the outer needle which puncture the focus of a human body are sealed, air cannot enter the human body through inner holes of the inner needle and the outer needle, accordingly, pneumothorax or air embolism is avoided, the puncture is finished, the threaded cap 1 is rotated subsequently, and pulling the screw cap 1, the screw cap 1 moves leftwards to drive the inner core thread 4 leftwards, further driving the inner needle 12 to move leftwards, the tail end of the male and female screw cap 2 is provided with a sealing plug I3, so that the left side of the male and female screw cap 2 keeps sealed, air can not enter the biopsy needle through the male and female screw cap 2 to reach the human body, thereby avoiding triggering pneumothorax or air embolism, meanwhile, a sealing plug II 7 on the inner core thread 4 is also withdrawn to the male and female screw cap 2, thereby increasing the sealing reliability, through the steps, when in puncture, a gap between the inner needle 12 and the outer needle 13 is blocked by the sealing plug II 7, the interior keeps sealed, air can not enter the human body through a gap between the inner needle and the outer needle, thereby avoiding triggering pneumothorax or air embolism, when in sampling, the screw cap 1 moves leftwards, the sealing plug I3 at the tail end of the male and female screw cap 2 keeps sealed at the left side of the tee joint 5, air can not enter the biopsy needle through the male and female threaded caps 2 to reach a human body, and the sealing plug I3 and the sealing plug II 7 are utilized to keep the internal sealing between the puncture and the sampling, so that pneumothorax or air embolism is avoided;
the outer surface of the inner needle 12 is provided with a side hole 15, the left side of the inner core wire 4 is connected with a thread cap 1 in a clamping manner, the thread cap 1 is in threaded connection with a male thread cap 2 and a female thread cap 2, when sampling is carried out, the thread cap 1 is unscrewed and pulled, so that the inner core wire 4 moves leftwards, the inner needle 12 is further driven leftwards, the side hole 15 of the inner needle 12 is pulled leftwards, at the moment, the side hole 15 is aligned with an upper through hole of a tee joint 5, a negative pressure aspirator is connected to the through hole of the tee joint 5, the negative pressure aspirator can form a gas passage with the needle point of the inner needle and the outer needle through the side hole 15 on the inner needle 12, and a sample in the inner needle 12 can be extracted;
the inner core wire 4 is in sliding connection with the sealing plug I3, the inner core wire 4 is in sliding connection with the male and female screw caps 2, the screw cap 1 is unscrewed to move leftwards, the inner core wire 4 is driven to slide leftwards, and the sealing plug I3 blocks the male and female screw caps 2 to keep internal sealing;
the outer surface of the outer needle 13 is connected with a locator 9 in a sliding way, a fastening screw 10 is connected with the upper part of the locator 9 in a threaded way, the surface of the outer needle 13 is provided with the slidable locator 9, the locator 9 is moved to a required position, the fastening screw 10 is rotated, the outer needle 13 is clamped by the fastening screw 10, and therefore the position of the locator 9 is fixed, and the function of limiting the puncture depth is achieved;
the lower pipeline of the tee joint 5 is connected with a cleaning pipe 6, cleaning solution 14 is stored in the cleaning pipe 6, when sampling is carried out, the threaded cap 1 is unscrewed to move leftwards, the inner core wire 4 is driven to slide leftwards, meanwhile, the sealing plug II 7 is driven to move leftwards, air outside the through hole above the tee joint 5 is pressed into the cleaning pipe 6, at the moment, under the extrusion of the air, the cleaning solution in the cleaning pipe 6 can be extruded to flow into the left side of the inner sealing plug II 7 of the tee joint 5, when sampling is finished, the threaded cap 1 is pushed, the sealing plug II 7 on the inner needle 12 is driven to move rightwards, so that the cleaning solution 14 is filled in the inner cavity of the tee joint 5, and the inner cavity is washed;
the first sealing plug 3 and the second sealing plug 7 are made of silica gel, so that the tee joint 5 and the male and female threaded caps 2 are kept closed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An aspiration biopsy needle with sealing system, comprising a tee (5), characterized in that: the right side fixed mounting of tee bend (5) has outer needle file (8), the inboard fixed mounting of outer needle file (8) has nipple (11), the inside fixed mounting of nipple (11) has outer needle (13), the inside sliding connection of tee bend (5) has interior core silk (4), the right side fixed mounting of interior core silk (4) has interior needle (12), the right side fixedly connected with sealing plug two (7) of interior core silk (4), the left side threaded connection of tee bend (5) has public female screw cap (2), the left side fixedly connected with sealing plug (3) of public female screw cap (2).
2. The aspiration biopsy needle with sealing system of claim 1, wherein: side opening (15) have been seted up to the surface of inner needle (12), the left side block of inner core silk (4) is connected with screw cap (1), screw cap (1) is threaded connection with public female screw cap (2).
3. The aspiration biopsy needle with sealing system of claim 2, wherein: the inner core wire (4) is in sliding connection with the first sealing plug (3), and the inner core wire (4) is in sliding connection with the male and female threaded caps (2).
4. The aspiration biopsy needle with sealing system of claim 3, wherein: the outer surface of the outer needle (13) is connected with a positioner (9) in a sliding mode, and a fastening screw (10) is connected to the upper portion of the positioner (9) in a threaded mode.
5. The aspiration biopsy needle with sealing system of claim 4, wherein: the lower pipeline of tee bend (5) is connected with clean pipe (6), cleaning solution (14) are stored to the inside of clean pipe (6).
6. The aspiration biopsy needle with sealing system of claim 5, wherein: and the first sealing plug (3) and the second sealing plug (7) are both made of silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121324708.4U CN215191835U (en) | 2021-06-15 | 2021-06-15 | Suction type biopsy needle with sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121324708.4U CN215191835U (en) | 2021-06-15 | 2021-06-15 | Suction type biopsy needle with sealing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215191835U true CN215191835U (en) | 2021-12-17 |
Family
ID=79425437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121324708.4U Expired - Fee Related CN215191835U (en) | 2021-06-15 | 2021-06-15 | Suction type biopsy needle with sealing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215191835U (en) |
-
2021
- 2021-06-15 CN CN202121324708.4U patent/CN215191835U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |