CN111728648A - Medical needle tube with puncture function - Google Patents
Medical needle tube with puncture function Download PDFInfo
- Publication number
- CN111728648A CN111728648A CN202010617929.4A CN202010617929A CN111728648A CN 111728648 A CN111728648 A CN 111728648A CN 202010617929 A CN202010617929 A CN 202010617929A CN 111728648 A CN111728648 A CN 111728648A
- Authority
- CN
- China
- Prior art keywords
- sleeved
- needle
- tube
- spring
- slide bar
- Prior art date
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 210000002307 prostate Anatomy 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000003932 urinary bladder Anatomy 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- A61B10/0045—Devices for taking samples of body liquids
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a medical needle tube with a puncture function, which comprises an outer tube, wherein the upper end of the outer tube is connected with an end cover through threads, an inner tube is sleeved in the end cover through threads, the upper end of the inner tube is connected with a sealing cover through threads, a guide rod is sleeved in a plain number sealing cover in a sliding mode, a pressing plate is welded at the upper end of the guide rod, the lower end of the pressing plate is connected with the sealing cover in a contact mode, a piston is arranged at the lower end of the guide rod, the piston is sleeved in the inner tube in a sliding mode, a needle tube is fixedly sleeved at the lower end of the inner tube, a boss is arranged at the lower end of the outer tube, the needle tube is sleeved in the boss in a sliding mode. The invention relates to the technical field of medical equipment. The invention has the advantages that the extension length can be controlled and adjusted, and the air in the needle tube is prevented from entering the body of a patient.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a medical needle tube with a puncture function.
Background
The puncture operation is an important measure and means for clinically diagnosing tumors, and the medical needle tube can be used for puncturing organs or tissues, obtaining suspicious tissues through a biopsy puncture needle to carry out pathological characterization on the suspicious tissues, and further providing a further accurate treatment scheme. Although a certain trauma is brought to a patient in the puncture process, the puncture needle is the best method for tumor characterization, and generally, the puncture needle is commonly used for human organs or tissue parts such as prostate, chest cavity, bladder and the like.
Among the prior art, the length that stretches out of medical needle tubing that has the puncture function is not convenient for control the adjustment, when puncturing, is difficult to reach the assigned position, simultaneously, has the air in the prior art needle tubing, when using, and the operation mistake can lead to the interior air admission patient of needle tubing internal, causes the injury to the patient.
Disclosure of Invention
According to the defects of the prior art, the invention aims to provide a medical needle tube with a puncture function, which has the effects that the extending length can be controlled and adjusted, and air in the needle tube is prevented from entering the body of a patient.
The technical purpose of the invention is realized by the following technical scheme:
a medical needle tube with a puncture function comprises an outer tube, wherein the upper end of the outer tube is connected with an end cover through threads, an inner tube is sleeved in the end cover through threads, the upper end of the inner tube is connected with a sealing cover through threads, a guide rod is sleeved in a plain number sealing cover in a sliding manner, the upper end of the guide rod is welded with a push plate, the lower end of the push plate is in contact connection with a sealing cover, the lower end of the guide rod is provided with a piston, the inner tube is sleeved with the piston in the sliding manner, the lower end of the inner tube is fixedly sleeved with a needle tube, the lower end of the outer tube is provided with a boss, the boss is sleeved with the needle tube in the sliding manner, the lower end of the needle tube is connected with a needle head through threads, a support ring is welded in the needle, the outer tube is characterized in that a sliding groove is formed in the right end of the outer tube, a sliding rod is connected in the sliding groove in a sliding mode, the upper end of the sliding rod is in contact connection with the inner tube, a pressing plate is fixedly sleeved on the outer side of the sliding rod, a protruding block is connected to the outer side of the sliding rod in a sliding mode, the right end of the protruding block is in contact connection with the outer tube, a second spring is arranged on the outer side of the sliding rod, and.
By adopting the technical scheme, the sliding rod is connected in the sliding groove in a sliding manner, the adjusting sliding rod can adjust the depth of the inner tube entering the outer tube, and further adjust the extending length of the needle tube, and the adjusting of the extending length of the needle tube enables the operation to be more convenient and the medical staff to accurately reach the designated position in the process of puncturing by using the device;
through passing through the threaded connection syringe needle at the lower extreme of needle tubing for syringe needle convenient to detach takes out appearance liquid, and second spring extrusion steel ball and spacing ring cooperation in the needle tubing make can only carry out one-way circulation in the needle tubing, and the suction sample has avoided the operation in-process, and it is internal to get into the patient with the air extrusion injection of interior intraductal, causes the injury to the patient.
The present invention in a preferred example may be further configured to: a guide hole is formed in the sealing cover, and a guide rod is sleeved in the guide hole in a sliding mode.
Through adopting above-mentioned technical scheme for the removal of guide bar in the inner tube can not take place the skew.
The present invention in a preferred example may be further configured to: the inner side of the outer tube is fixedly sleeved with a guide sleeve, and a needle tube is sleeved in the guide sleeve in a sliding manner.
By adopting the technical scheme, the needle tube can be guided to move.
The present invention in a preferred example may be further configured to: the lower end of the support ring is connected with a first spring in a contact mode, and a steel ball is bonded to the lower end of the first spring.
By adopting the technical scheme, the needle tube is blocked by the matching of the steel ball and the limiting ring under the normal state.
The present invention in a preferred example may be further configured to: the left end of the pressing plate is bonded with a non-slip mat, and the left end of the non-slip mat is connected with an outer tube in a contact mode.
Through adopting above-mentioned technical scheme for under the normality, slipmat and outer tube contact make the slide bar difficult to remove.
The present invention in a preferred example may be further configured to: and a supporting hole is formed in the convex block, and a sliding rod is sleeved in the supporting hole in a sliding manner.
Through adopting above-mentioned technical scheme for the lug can slide on the slide bar.
The present invention in a preferred example may be further configured to: the right end contact of baffle is connected with the second spring, the right end contact of second spring is connected with the lug.
Through adopting above-mentioned technical scheme for the pressure plate compresses tightly in the outside of outer tube under the normality.
In summary, the invention includes at least one of the following beneficial technical effects:
1. through sliding connection slide bar in the spout, the adjustment slide bar can adjust the interior pipe and get into the degree of depth in the outer tube, and then adjusts the extension length of needle tubing, and the extension length of adjustment needle tubing makes the in-process that carries out the puncture at medical personnel's use device, and it is more convenient to operate, arrival assigned position that can be accurate.
2. Through passing through the threaded connection syringe needle at the lower extreme of needle tubing for syringe needle convenient to detach takes out appearance liquid, and second spring extrusion steel ball and spacing ring cooperation in the needle tubing make can only carry out one-way circulation in the needle tubing, and the suction sample has avoided the operation in-process, and it is internal to get into the patient with the air extrusion injection of interior intraductal, causes the injury to the patient.
Drawings
Fig. 1 is a schematic view of the overall structure of the present embodiment.
FIG. 2 is a cross-sectional view of the needle cannula and needle junction of FIG. 1 according to this embodiment.
Fig. 3 is an enlarged view of the embodiment at a in fig. 1.
Fig. 4 is an enlarged view of the embodiment at B in fig. 1.
In the figure, 1, an outer tube; 2. an end cap; 3. an inner tube; 4. a sealing cover; 5. a guide bar; 6. a guide hole; 7. pushing the plate; 8. a piston; 9. a needle tube; 10. a boss; 11. a guide sleeve; 12. a needle head; 13. a support ring; 14. a first spring; 15. steel balls; 16. a limiting ring; 17. a chute; 18. a slide bar; 19. pressing a plate; 20. a non-slip mat; 21. a bump; 22. a support hole; 23. a second spring; 24. and a baffle plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 1, 2 and 4, a medical needle tube with a puncture function comprises an outer tube 1, the upper end of the outer tube 1 is connected with an end cover 2 through a thread, an inner tube 3 is sleeved in the end cover 2 through a thread, the upper end of the inner tube 3 is connected with a sealing cover 4 through a thread, a guide rod 5 is sleeved in a plain sealing cover 4 in a sliding manner, the upper end of the guide rod 5 is welded with a push plate 7, the lower end of the push plate 7 is connected with the sealing cover 4 in a contact manner, the lower end of the guide rod 5 is provided with a piston 8, the inner tube 3 is sleeved with the piston 8 in the sliding manner, the lower end of the inner tube 3 is fixedly sleeved with a needle tube 9, the lower end of the outer tube 1 is provided with a boss 10, the boss 10 is sleeved with the needle tube 9 in the sliding manner, the lower end of the needle, the upper end contact of spacing ring 16 is connected with steel ball 15, the spout 17 has been seted up to the right-hand member of outer tube 1, sliding connection has slide bar 18 in the spout 17, the upper end contact of slide bar 18 is connected with inner tube 3, the outside of slide bar 18 is fixed cup joints clamp plate 19, the outside of slide bar 18 is slided and is cup jointed the lug 21, the right-hand member contact of lug 21 is connected with outer tube 1, the outside of slide bar 18 is provided with second spring 23, the fixed cover in the outside of slide bar 18 has been connected.
Referring to fig. 3, a guide hole 6 is formed in the sealing cover 4, and a guide rod 5 is slidably sleeved in the guide hole 6. The guide hole 6 is provided so that the guide rod 5 does not shift in movement within the inner tube 3.
Referring to fig. 1, a guide sleeve 11 is fixedly sleeved on the inner side of the outer tube 1, and a needle tube 9 is slidably sleeved in the guide sleeve 11. The movement of the needle tube 9 is guided by providing the guide sleeve 11.
Referring to fig. 2, the lower end of the support ring 13 is in contact connection with a first spring 14, and a steel ball 15 is adhered to the lower end of the first spring 14. The needle tube 9 is sealed by arranging the first spring 14, so that the steel ball 15 and the limiting ring 16 are matched under a normal state.
Referring to fig. 4, a non-slip mat 20 is adhered to the left end of the pressing plate 19, and the outer tube 1 is connected to the left end of the non-slip mat 20 in a contact manner. By arranging the non-slip mat 20, the non-slip mat 20 is in contact with the outer pipe 1 in a normal state, so that the sliding rod 18 is not easy to move.
Referring to fig. 4, a support hole 22 is formed in the projection 21, and the slide bar 18 is slidably sleeved in the support hole 22. The projection 21 is made slidable on the slide bar 18 by providing the support hole 22.
Referring to fig. 4, the right end of the shutter 24 is in contact with the second spring 23, and the right end of the second spring 23 is in contact with the projection 21. By providing the second spring 23, the pressure plate 19 is normally pressed against the outside of the outer tube 1.
The implementation principle of the above embodiment is as follows: when the puncture needle is used, the slide rod 18 is pulled outwards, the anti-skid pad 20 is separated from the outer wall of the outer tube 1, the bump 21 slides on the slide rod 18, the second spring 23 is extruded, the slide rod 18 is moved to a required depth, the slide rod 18 is loosened, the second spring 23 is reset, the slide rod 18 is difficult to move, the inner tube 3 is rotated, the extending length of the needle tube 9 is adjusted, the slide rod 18 is connected in the sliding groove 17 in a sliding mode, the adjusting slide rod 18 can adjust the depth of the inner tube 3 entering the outer tube 1, the extending length of the needle tube 9 is adjusted, so that in the process of puncturing by using the puncture needle using device of medical personnel, the operation is more convenient, the needle 12 can accurately reach a designated position, meanwhile, the needle 12 is connected with the needle 12 through threads at the lower end of the needle tube 9, the sample liquid is, make and to carry out one-way circulation in needle tubing 9, the suction sample has avoided in the operation process, with the air extrusion injection entering patient in the inner tube 3 internal, causes the injury to the patient.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides a medical needle tubing with puncture function, includes outer tube (1), its characterized in that: the upper end of the outer pipe (1) is connected with an end cover (2) through threads, the inner pipe (3) is sleeved in the end cover (2) through threads, the upper end of the inner pipe (3) is connected with a sealing cover (4) through threads, a guide rod (5) is sleeved in the sealing cover (4) of the prime number in a sliding manner, the upper end of the guide rod (5) is welded with a push plate (7), the lower end of the push plate (7) is connected with the sealing cover (4) in a contact manner, the lower end of the guide rod (5) is provided with a piston (8), the inner pipe (3) is sleeved with the piston (8) in the sliding manner, the lower end of the inner pipe (3) is fixedly sleeved with a needle pipe (9), the lower end of the outer pipe (1) is provided with a boss (10), the needle pipe (9) is sleeved in the boss (10) in a sliding, be provided with first spring (14) in needle tubing (9), be provided with steel ball (15) in needle tubing (9), be provided with spacing ring (16) in syringe needle (12), the upper end contact of spacing ring (16) is connected with steel ball (15), spout (17) have been seted up to the right-hand member of outer tube (1), sliding connection has slide bar (18) in spout (17), the upper end contact connection of slide bar (18) has inner tube (3), the fixed clamp plate (19) that cup joints in the outside of slide bar (18), lug (21) have been cup jointed in the outside slip of slide bar (18), the right-hand member contact connection of lug (21) has outer tube (1), the outside of slide bar (18) is provided with second spring (23), the fixed cover in the outside of slide bar (18) has been cup jointed baffle (24).
2. A medical needle cannula with a puncturing function as claimed in claim 1, wherein: a guide hole (6) is formed in the sealing cover (4), and a guide rod (5) is sleeved in the guide hole (6) in a sliding mode.
3. A medical needle cannula with a puncturing function as claimed in claim 1, wherein: the inner side of the outer tube (1) is fixedly sleeved with a guide sleeve (11), and the guide sleeve (11) is sleeved with a needle tube (9) in a sliding mode.
4. A medical needle cannula with a puncturing function as claimed in claim 1, wherein: the lower end of the support ring (13) is connected with a first spring (14) in a contact mode, and a steel ball (15) is bonded to the lower end of the first spring (14).
5. A medical needle cannula with a puncturing function as claimed in claim 1, wherein: the left end of the pressing plate (19) is bonded with a non-slip mat (20), and the left end of the non-slip mat (20) is connected with the outer pipe (1) in a contact mode.
6. A medical needle cannula with a puncturing function as claimed in claim 1, wherein: and a support hole (22) is formed in the bump (21), and a slide rod (18) is sleeved in the support hole (22) in a sliding manner.
7. A medical needle cannula with a puncturing function as claimed in claim 1, wherein: the right end of the baffle (24) is in contact connection with a second spring (23), and the right end of the second spring (23) is in contact connection with a bump (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010617929.4A CN111728648A (en) | 2020-06-30 | 2020-06-30 | Medical needle tube with puncture function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010617929.4A CN111728648A (en) | 2020-06-30 | 2020-06-30 | Medical needle tube with puncture function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111728648A true CN111728648A (en) | 2020-10-02 |
Family
ID=72653859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010617929.4A Pending CN111728648A (en) | 2020-06-30 | 2020-06-30 | Medical needle tube with puncture function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111728648A (en) |
-
2020
- 2020-06-30 CN CN202010617929.4A patent/CN111728648A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201002 |
|
| WD01 | Invention patent application deemed withdrawn after publication |