CN112315557A - Puncture needle with aligned inner and outer needle bevels - Google Patents
Puncture needle with aligned inner and outer needle bevels Download PDFInfo
- Publication number
- CN112315557A CN112315557A CN202011285696.9A CN202011285696A CN112315557A CN 112315557 A CN112315557 A CN 112315557A CN 202011285696 A CN202011285696 A CN 202011285696A CN 112315557 A CN112315557 A CN 112315557A
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- Prior art keywords
- needle
- outer needle
- scarf
- puncture
- base
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- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000010827 pathological analysis Methods 0.000 description 2
- 208000018084 Bone neoplasm Diseases 0.000 description 1
- 206010068771 Soft tissue neoplasm Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013188 needle biopsy Methods 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000011269 treatment regimen Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a puncture needle with aligned inner needle and outer needle bevels, which comprises: the outer needle assembly comprises an outer needle base and an outer needle positioned at one end of the outer needle base, and the inner needle assembly comprises an inner needle base and an inner needle positioned at one end of the inner needle base; the syringe needle end of outer needle is equipped with first scarf, the syringe needle end of interior needle is equipped with the second scarf, first scarf flush with the second scarf. The invention can reduce the resistance of the puncture needle when the puncture needle is inserted into the human body, improve the convenience of the operating personnel and the accuracy of the operation, relieve the pain of the patient and increase the efficiency of the operation.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a puncture needle with aligned oblique planes of an inner needle and an outer needle.
Background
Bone and soft tissue tumors are diseases seriously harming human health and life, the incidence rate gradually rises in recent years, the onset age gradually declines, and early detection, correct diagnosis and timely treatment have important influence on prognosis. The correct diagnosis requires three combinations of clinical, imaging and pathology. Among them, pathological diagnosis plays a key role in the selection of a treatment regimen. Needle biopsy is the primary way to obtain a pathological diagnosis.
During the puncture/drug injection/body fluid drainage suction operation, the puncture needle needs to be punctured into the human body. In order to reduce the difficulty of the production process, the common puncture needle generally adopts a structure that the inner needle is contracted in the outer needle, so that when the common puncture needle is punctured into a human body, the resistance is large, the problem of unsmooth needle insertion is easily caused, and the pain of a patient is increased.
Disclosure of Invention
In view of this, the invention provides a puncture needle with aligned inner and outer needle bevels, wherein the first bevel of the outer needle head end of the puncture needle is flush with the second bevel of the inner needle head end of the puncture needle, so that the resistance of the puncture needle during needle insertion into a human body can be effectively reduced, the convenience of operating personnel and the accuracy of an operation can be improved, the pain of a patient can be relieved, and the operation efficiency can be improved.
To achieve the above objects, according to one aspect of the present invention, a lancet having an alignment of inside and outside needle bevels is provided.
A puncture needle having an aligned inner and outer needle chamfer comprises: the outer needle assembly comprises an outer needle base and an outer needle positioned at one end of the outer needle base, and the inner needle assembly comprises an inner needle base and an inner needle positioned at one end of the inner needle base; its characterized in that, the syringe needle end of outer needle is equipped with first scarf, the syringe needle end of interior needle is equipped with the second scarf, first scarf flush with the second scarf.
Preferably, the outer wall of the outer needle seat is convexly provided with a hand position for assisting in puncture operation, and the hand position is symmetrically arranged by taking the axis of the outer needle seat as a center.
Preferably, the outer wall of one end of the outer needle far away from the outer needle seat is provided with a score line.
Preferably, the hand position is a plate-shaped structure.
Preferably, the hand position is perpendicular to the outer needle holder.
Preferably, the outer needle base is a hollow structure, and the hollow structure is communicated with the hollow structure of the outer needle.
Preferably, the score line is a helical line.
Preferably, the spirals are arranged crosswise.
Preferably, a buoy is arranged at the joint of the outer needle and the outer needle seat, and the outer needle penetrates through the buoy and then is connected with the outer needle seat.
According to the technical scheme of the invention, the first chamfer plane of the head end of the outer needle is flush with the second chamfer plane of the head end of the inner needle, so that the resistance of the puncture needle in the human body during needle insertion can be effectively reduced, the convenience of operating personnel and the accuracy of operation can be improved, the pain of a patient can be relieved, and the operation efficiency can be improved.
Drawings
For purposes of illustration and not limitation, the present application will now be described in accordance with preferred embodiments of the invention, particularly with reference to the accompanying drawings, in which:
FIG. 1 is one of the exploded pictorial views of a needle having aligned beveled surfaces of an inner and outer needle in accordance with an embodiment of the present invention;
FIG. 2 is a second exploded view of the needle of the present invention having the bevel alignment of the inner and outer needles;
FIG. 3 is a schematic view of an outer needle and inner needle assembly of the present invention having a needle with aligned inside and outside needle bevels;
figure 4 is a schematic representation of a needle design having aligned bevel cuts of the inner and outer needles in accordance with an embodiment of the present invention.
Description of reference numerals: the hand-held needle comprises an inner needle assembly 1, an inner needle seat 11, an inner needle 12, a first chamfer 121, an outer needle assembly 2, an outer needle seat 21, a hand position 211, an outer needle 22, a second chamfer 221, a marking line 222, a buoy 3 and a protective sleeve 4.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Referring to fig. 1 to 4, a puncture needle of the present invention having an alignment of the bevels of the inner and outer needles, comprises: the outer needle assembly 2 and the inner needle assembly 1 sleeved in the outer needle assembly 2, the outer needle assembly 2 comprises an outer needle base 21 and an outer needle 22 positioned at one end of the outer needle base 21, and the inner needle assembly 1 comprises an inner needle base 11 and an inner needle 12 positioned at one end of the inner needle base 11; the needle tip of the outer needle 22 is provided with a first chamfer 221, the needle tip of the inner needle 12 is provided with a second chamfer 121, and the first chamfer 221 is flush with the second chamfer 121. When the medical staff pushes the puncture needle to advance in the human body, the resistance during the needle insertion is greatly reduced, which is beneficial to improving the convenience of the operating staff and the accuracy of the operation, relieving the pain of the patient and improving the operation efficiency.
The protrusion is provided with the hand position 211 that is used for assisting the puncture operation on the outer wall of outer needle file 21 of this application embodiment, and the axis of needle file 21 outside hand position 211 sets up for central symmetry, and the hand position can be two, and radial relative setting along outer needle file 21, this pjncture needle is when using, and operating personnel passes through two hand positions, can with the pjncture needle is firmly held, and convenient operation, the hand position also can be a holistic cake structure, when propelling movement this pjncture needle, can be better bulldoze the application of force, puncture safer, and before preparing puncture hand, because the axis of needle file 21 outside the hand position sets up for central symmetry, consequently can place firmly on the operating table, can not roll easily.
The hand position 211 is of a plate-shaped structure and is perpendicular to the outer needle seat 21, so that the puncture needle can be held by an operator conveniently, the operator is prevented from sliding off in the operation process, and the hand position can be made into a rectangular plate shape, a polygonal plate shape and other shapes according to actual needs or habits of the operator.
The outer needle holder 21 has a hollow structure, and the hollow structure is communicated with the hollow structure of the outer needle 22. The buoy 3 is arranged at the joint of the outer needle 22 and the outer needle holder 21, and the outer needle 22 penetrates through the buoy 3 and then is connected with the outer needle holder 21.
The outer wall of one end of the outer needle 22 far away from the outer needle seat 21 is provided with a scribed line 222, the scribed line 222 is a spiral line, and the spiral line is arranged in a crossed manner; the scribed lines 222 may also be circular lines arranged in parallel; when the puncture needle is used for puncture surgery, an operator holds the hand position 211 tightly and forcibly punctures the puncture needle into a human body under the assistance of the hand position, when the puncture needle enters the position near a focus of the human body, the probe converter emits ultrasonic waves and irradiates the surface of the outer needle 22, particularly in a spiral line, ultrasonic signals can be reflected to the probe converter more through reflection at a certain angle, images displayed by ultrasonic imaging equipment are very clear, the position where the outer needle 22 reaches can be monitored in real time, sampling of the thyroid gland, medicine injection after the inner needle is taken out, drainage suction of body fluid and the like can be carried out at the moment (the hand position is not needed during injection or suction).
The end of the outer needle 22 far away from the outer needle seat 21 is an outer needle outlet with a needle structure, and the spiral line is close to the outer needle outlet. By adopting the arrangement, because ultrasonic signals are more reflected to the probe converter near the spiral line, the puncture condition of the outer needle outlet can be clearly displayed on the ultrasonic imaging equipment in real time, and the judgment and the next operation of medical personnel are facilitated.
The end of the inner needle 12 far away from the inner needle seat 11 is an inner needle outlet which is in a needle-shaped structure the same as the outer needle outlet, and the design is favorable for puncture. The inner needle base 11 comprises a second holding part and a connecting part located at one end of the second holding part, the connecting part is connected with the inner needle 12, when the inner needle assembly 1 is combined with the outer needle assembly 2, the inner needle 12 penetrates through the outer needle base 21 and the outer needle 22, and the inner needle base 11 is connected with the outer needle base 21 in a buckling mode.
The puncture needle also comprises a protective sleeve 4, the protective sleeve 4 is sleeved on the outer needle and buckled with the buoy 3, and the protective sleeve 4 can be used for protecting the puncture needle so as to prevent the puncture needle from being polluted when not in use.
When the puncture needle with the aligned oblique planes of the inner needle and the outer needle is used, when medical personnel push the puncture needle to advance in a human body, the resistance during needle insertion is greatly reduced, the convenience of operating personnel and the accuracy of operation are improved, the pain of a patient is relieved, and the operation efficiency is improved.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A needle having aligned inner and outer needle bevels, comprising: the outer needle assembly comprises an outer needle base and an outer needle positioned at one end of the outer needle base, and the inner needle assembly comprises an inner needle base and an inner needle positioned at one end of the inner needle base; its characterized in that, the syringe needle end of outer needle is equipped with first scarf, the syringe needle end of interior needle is equipped with the second scarf, first scarf flush with the second scarf.
2. The needle of claim 1 having an alignment of the beveled surfaces of the inner and outer needles wherein a hand position for assisting the puncturing operation is provided on the outer wall of the outer hub in a protruding manner, said hand position being symmetrically disposed about the axis of the outer hub.
3. A needle in accordance with claim 2 having an aligned bevel of the inner and outer needles, wherein score lines are provided on the outer wall of the end of the outer needle distal from the outer needle hub.
4. A needle with alignment of the inside and outside needle bevels in accordance with claim 2 or 3 wherein the hand position is of plate-like configuration.
5. A needle as claimed in claim 4 having aligned inside and outside needle bevels wherein said hand position is perpendicular to said outer hub.
6. A needle assembly in accordance with claim 1, wherein said outer hub is hollow and communicates with the hollow of said outer needle.
7. A needle assembly as in claim 3, wherein said score line is a spiral.
8. A needle assembly as in claim 7 wherein said helical wires are arranged in a criss-cross pattern.
9. A needle as claimed in claim 1 having aligned chamfered inner and outer needles, wherein a float is provided at the junction of the outer needle and the outer hub, and the outer needle extends through the float and then connects to the outer hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285696.9A CN112315557A (en) | 2020-11-17 | 2020-11-17 | Puncture needle with aligned inner and outer needle bevels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285696.9A CN112315557A (en) | 2020-11-17 | 2020-11-17 | Puncture needle with aligned inner and outer needle bevels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112315557A true CN112315557A (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011285696.9A Pending CN112315557A (en) | 2020-11-17 | 2020-11-17 | Puncture needle with aligned inner and outer needle bevels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112315557A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123611A1 (en) * | 2021-12-28 | 2023-07-06 | 迈得医疗工业设备股份有限公司 | Medical instrument production line |
| WO2023123610A1 (en) * | 2021-12-28 | 2023-07-06 | 迈得医疗工业设备股份有限公司 | Blade face aligning device and medical instrument production line |
-
2020
- 2020-11-17 CN CN202011285696.9A patent/CN112315557A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123611A1 (en) * | 2021-12-28 | 2023-07-06 | 迈得医疗工业设备股份有限公司 | Medical instrument production line |
| WO2023123610A1 (en) * | 2021-12-28 | 2023-07-06 | 迈得医疗工业设备股份有限公司 | Blade face aligning device and medical instrument production line |
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