CN109984776B - Needle assembly - Google Patents
Needle assembly Download PDFInfo
- Publication number
- CN109984776B CN109984776B CN201910288031.4A CN201910288031A CN109984776B CN 109984776 B CN109984776 B CN 109984776B CN 201910288031 A CN201910288031 A CN 201910288031A CN 109984776 B CN109984776 B CN 109984776B
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- China
- Prior art keywords
- needle
- pin shaft
- sheet
- arc edge
- sheet needle
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 33
- 238000001574 biopsy Methods 0.000 claims abstract description 14
- 230000035515 penetration Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 206010052428 Wound Diseases 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 3
- 230000001575 pathological effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004996 female reproductive system Anatomy 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
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
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a sheet needle assembly, which comprises a sheet needle and a pin shaft riveted with the sheet needle, wherein the sheet needle and the pin shaft are mutually perpendicular; the needle piece comprises a penetrating part penetrating human tissue and a fixing part fixing the needle piece on the biopsy forceps, the penetrating part and the fixing part are respectively located at two opposite ends of the needle piece, the fixing part comprises a connecting hole and a pin hole, the pin hole is located between the connecting hole and the penetrating part, the pin shaft is riveted to the pin hole, the diameter of the pin shaft is larger than the inner diameter of the pin hole, the penetrating part is defined to be in front relative to one end of the fixing part, the left side and the right side of the needle piece are oblique sides, and the oblique direction of the oblique sides is gradually inclined towards the center of the needle piece from the fixing part to the penetrating part. The pin shaft is riveted on the sheet needle, so that the whole structure is more stable, the sheet needle is not easy to rotate, more tissue wounds are caused, the pain of a patient is reduced, the production operation is simplified due to the fact that the pin shaft and the sheet needle are riveted through a machine, manual spot welding is avoided, the production cost is saved, and meanwhile, the labor is saved.
Description
Technical Field
The invention belongs to the technical field of endoscope living tissue sampling equipment, and particularly relates to a sheet needle assembly.
Background
Biopsy forceps are tools for collecting samples of living tissues in the upper and lower digestive tracts, respiratory tracts, urinary systems and female reproductive systems, and are indispensable tools for taking pathological samples in endoscopic examination.
The traditional biopsy forceps have two types, one type is that the end part is in a scissor shape, the type drives a scissor-shaped clamping device to clamp pathological tissues through a boosting mechanism, the scissor-shaped clamping device can rotate at random by 360 degrees, but the boosting mechanism is in a metal tube shape which cannot be deformed, cannot change shape according to the human body structure, and is difficult to adjust when extending into the human body; in addition, the biopsy forceps have complex structure and high cost. The soft rope is also a soft rope, the cost is low, and the outer tube is also an insulating hose due to the adoption of the soft steel wire, so that the soft rope can be randomly stretched into a human body to be bent and the like.
The utility model discloses a disposable biopsy forceps of chinese patent publication No. CN 205514704U, including bracelet, the handle, the sliding ring, lead to the groove, the binding clip, the outer tube, a spring, the mounting, pliers, guy cable and syringe needle, the mounting front end is fixed with the syringe needle, pliers can cladding syringe needle, though provide a low cost, convenient for connection, simple manufacture, convenient and fast's disposable biopsy forceps of sample, but the syringe needle is connected unstably with the mounting, the syringe needle rotates easily, when the biopsy, cause the wound of more tissues, increase patient's misery, and prior art is all fixed in the mounting front end with the sheet needle through artifical spot welding, thereby increase the cost of labor.
Disclosure of Invention
The invention mainly solves the technical problem of providing the sheet needle assembly, the pin shaft is riveted on the sheet needle, so that the whole structure is more stable, the sheet needle is not easy to rotate, more tissue wounds are caused, the pain of a patient is reduced, and because the pin shaft and the sheet needle are riveted through a machine, the production operation is simplified, the manual spot welding is avoided, the production cost is saved, and the labor is saved.
In order to solve the technical problems, the invention adopts a technical scheme that: the sheet needle assembly comprises a sheet needle and a pin shaft riveted with the sheet needle, wherein the sheet needle and the pin shaft are mutually perpendicular;
The sheet needle comprises a penetrating part penetrating human tissue and a fixing part fixing the sheet needle to the biopsy forceps, the penetrating part and the fixing part are respectively positioned at two opposite ends of the sheet needle, the fixing part comprises a connecting hole and a pin hole, the pin hole is positioned between the connecting hole and the penetrating part, the pin shaft is riveted to the pin hole, and the diameter of the pin shaft is larger than the inner diameter of the pin hole;
the front side of the penetrating part is defined as one end of the fixing part, the left side and the right side of the sheet needle are oblique sides, and the oblique direction of the oblique sides gradually inclines from the fixing part to the penetrating part to the center of the sheet needle.
Further, the front end of the penetrating portion is a first arc edge, the rear end of the fixing portion is a second arc edge, the inclined edge comprises a first straight edge, a third arc edge, a second straight edge and a fourth arc edge which are sequentially connected, the two first straight edges are connected with the first arc edge, and the two fourth arc edges are connected with the second arc edge.
Further, the diameter of the pin shaft is 0.42-0.44mm, the inner diameter of the pin hole is 0.37-0.41mm, and the length of the pin shaft is 2.26-2.34mm.
Further, the thickness of the sheet needle is 0.2mm.
Further, the distance between the pin hole and the connecting hole is 1.065-1.125mm.
Further, the distance between the connecting hole and the penetration point of the sheet needle is 3.45-3.55mm.
Further, the radius of the circle where the first arc edge is located is 0.08mm.
Further, the radius of the circle where the second arc edge is positioned is 0.79-0.81mm.
Further, the radius of the circle where the third arc edge is located is 2mm.
Further, the radius of the circle where the fourth arc edge is located is 1.5mm.
The beneficial effects of the invention are at least as follows:
The sheet needle is fixed on the biopsy forceps through the pin shaft and the fixed shaft in the center of the connecting hole, and is fixed through two points, so that the structure is reliable and the fixation is firm;
The pin shaft is riveted on the pin hole, the diameter of the pin shaft is larger than the inner diameter of the pin hole, the whole structure is more stable through the riveting mode, the sheet needle is not easy to rotate, more tissue wounds are caused, and the pain of a patient is reduced.
The front end of the puncturing part is a first arc edge, the radius of the circle of the first arc edge is 0.08mm, compared with the traditional needle-shaped part, not only can ensure that the puncturing part punctures human tissues, but also can prevent production personnel and medical staff from accidentally injuring themselves and others in the production process and the use process;
The left side and the right side of the sheet needle are oblique sides, and the oblique direction of the oblique sides gradually inclines towards the center of the sheet needle from the fixing part to the penetrating part.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the patch needle of the present invention;
The parts in the drawings are marked as follows:
The sheet needle comprises a sheet needle 1, a penetrating part 11, a fixing part 12, a first arc edge 13, a second arc edge 14, a first straight edge 15, a third arc edge 16, a second straight edge 17, a fourth arc edge 18, a connecting hole 121, a pin hole 122, a pin shaft 2, a diameter d of the pin shaft, a length L1 of the pin shaft, a distance L2 between the pin hole and the connecting hole, a distance L3 between the connecting hole and a penetrating point of the sheet needle, a radius R1 of a circle where the first arc edge is located, a radius R2 of a circle where the second arc edge is located, a radius R3 of a circle where the third arc edge is located and a radius R4 of a circle where the fourth arc edge is located.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Examples: 1-2, a sheet needle assembly comprises a sheet needle 1 and a pin shaft 2 riveted with the sheet needle 1, wherein the sheet needle 1 and the pin shaft 2 are mutually perpendicular;
The sheet needle 1 comprises a penetrating part 11 penetrating into human tissue and a fixing part 12 fixing the sheet needle 1 to a biopsy forceps, wherein the penetrating part 11 and the penetrating part 11 are respectively positioned at two opposite ends of the sheet needle 1, the penetrating part 11 comprises a connecting hole 121 and a pin hole 122, the pin hole 122 is positioned between the connecting hole 121 and the penetrating part 11, the pin shaft 2 is riveted to the pin hole 122, and the diameter of the pin shaft 2 is larger than the inner diameter of the pin hole 122;
The front side of the penetrating portion 11 is defined as one end of the fixing portion 12, the left and right sides of the sheet needle 1 are beveled edges, and the beveled edges are inclined gradually toward the center of the sheet needle 1 from the fixing portion 12 to the penetrating portion 11.
In specific implementation, the sheet needle 1 is fixed on the biopsy forceps through a pin shaft 2 and a fixed shaft in the center of the connecting hole 121.
The front end of the penetrating portion 11 is a first arc edge 13, the rear end of the fixing portion 12 is a second arc edge 14, the inclined edge comprises a first straight edge 15, a third arc edge 16, a second straight edge 17 and a fourth arc edge 18 which are sequentially connected, the first straight edge 15 is connected with the first arc edge 13, and the fourth arc edge 18 is connected with the second arc edge 14.
The diameter d of the pin shaft is 0.42-0.44mm, the inner diameter of the pin hole 122 is 0.37-0.41mm, and the length L1 of the pin shaft is 2.26-2.34mm.
Preferably, the diameter d of the pin shaft is 0.42mm, the inner diameter of the pin hole 122 is 0.4mm, and the length L1 of the pin shaft is 2.3mm.
The thickness of the sheet needle 1 is 0.2mm.
The distance L2 between the pin hole and the connecting hole is 1.065-1.125mm.
The distance L3 between the connecting hole and the penetration point of the sheet needle is 3.45-3.55mm.
The radius R1 of the circle where the first arc edge is located is 0.08mm.
The radius R2 of the circle where the second arc edge is positioned is 0.79-0.81mm.
The radius R3 of the circle where the third arc edge is located is 2mm.
The radius R4 of the circle where the fourth arc edge is located is 1.5mm.
The working principle of the invention is as follows: the pin shaft is riveted to the pin hole of the needle, the needle is fixed to the biopsy forceps through the pin shaft and the fixing shaft in the center of the connecting hole, the whole structure is stable, the needle is not easy to rotate, when the biopsy forceps are used, the needle is penetrated into human tissues from the first arc edge, the left side and the right side of the needle are oblique edges, the oblique direction of the oblique edges gradually inclines towards the center of the needle from the fixing part to the penetrating part, and due to the structural design, the needle is convenient to penetrate into the human tissues, and pain of a patient is reduced.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A needle assembly, characterized in that: comprises a sheet needle (1) and a pin shaft (2) riveted with the sheet needle, wherein the sheet needle and the pin shaft are mutually perpendicular;
The sheet needle comprises a penetrating part (11) penetrating human tissue and a fixing part (12) fixing the sheet needle to the biopsy forceps, the penetrating part and the fixing part are respectively positioned at two opposite ends of the sheet needle, the fixing part comprises a connecting hole (121) and a pin hole (122), the pin hole is positioned between the connecting hole and the penetrating part, the pin shaft is riveted to the pin hole, and the diameter of the pin shaft is larger than the inner diameter of the pin hole;
Defining one end of the penetrating part relative to the fixing part as a front part, wherein the left side edge and the right side edge of the sheet needle are oblique sides, and the oblique direction of the oblique sides gradually inclines towards the center of the sheet needle from the fixing part to the penetrating part;
The front end of the penetrating part is a first arc edge (13), the rear end of the fixing part is a second arc edge (14), the inclined edge comprises a first straight edge (15), a third arc edge (16), a second straight edge (17) and a fourth arc edge (18) which are sequentially connected, the two first straight edges are connected with the first arc edge, and the two fourth arc edges are connected with the second arc edge;
the radius (R1) of the circle where the first arc edge is positioned is 0.08mm;
The radius (R2) of the circle where the second arc edge is positioned is 0.79-0.81mm;
the radius (R3) of the circle where the third arc edge is positioned is 2mm;
The radius (R4) of the circle where the fourth arc edge is located is 1.5mm.
2. The needle assembly of claim 1, wherein: the diameter (d) of the pin shaft is 0.42-0.44mm, the inner diameter of the pin hole is 0.37-0.41mm, and the length (L1) of the pin shaft is 2.26-2.34mm.
3. The needle assembly of claim 1, wherein: the thickness of the sheet needle is 0.2mm.
4. The needle assembly of claim 1, wherein: the distance (L2) between the pin hole and the connecting hole is 1.065-1.125mm.
5. The needle assembly of claim 1, wherein: the distance (L3) between the connecting hole and the penetration point of the sheet needle is 3.45-3.55mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288031.4A CN109984776B (en) | 2019-04-11 | 2019-04-11 | Needle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288031.4A CN109984776B (en) | 2019-04-11 | 2019-04-11 | Needle assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109984776A CN109984776A (en) | 2019-07-09 |
| CN109984776B true CN109984776B (en) | 2024-04-30 |
Family
ID=67133254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910288031.4A Active CN109984776B (en) | 2019-04-11 | 2019-04-11 | Needle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109984776B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0207829A1 (en) * | 1985-06-04 | 1987-01-07 | Jean-Marie Schintgen | Biopsy forceps with a retractable needle |
| CN205831834U (en) * | 2016-06-14 | 2016-12-28 | 杭州安杰思医学科技有限公司 | A kind of activity pincers for puncturing |
| CN206342498U (en) * | 2016-10-12 | 2017-07-21 | 广西昌鑫科技有限公司 | Disposable scissor biopsy needle |
| KR20180079864A (en) * | 2017-01-03 | 2018-07-11 | 고형진 | Needle structure of core biopsy device |
| CN209808416U (en) * | 2019-04-11 | 2019-12-20 | 苏州聚生精密冲件有限公司 | Needle assembly |
-
2019
- 2019-04-11 CN CN201910288031.4A patent/CN109984776B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0207829A1 (en) * | 1985-06-04 | 1987-01-07 | Jean-Marie Schintgen | Biopsy forceps with a retractable needle |
| CN205831834U (en) * | 2016-06-14 | 2016-12-28 | 杭州安杰思医学科技有限公司 | A kind of activity pincers for puncturing |
| CN206342498U (en) * | 2016-10-12 | 2017-07-21 | 广西昌鑫科技有限公司 | Disposable scissor biopsy needle |
| KR20180079864A (en) * | 2017-01-03 | 2018-07-11 | 고형진 | Needle structure of core biopsy device |
| CN209808416U (en) * | 2019-04-11 | 2019-12-20 | 苏州聚生精密冲件有限公司 | Needle assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109984776A (en) | 2019-07-09 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Fan Inventor after: Yang Zhaolong Inventor before: Yang Zhaolong Inventor before: Wang Fan |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |