Micromanipulation egg holding needle
By setting a first and second marking line on the micromanipulation oocyte holding needle and combining it with an inward arc-shaped port design, the problem of difficulty in leveling the micromanipulation needle under the microscope is solved, achieving convenient micromanipulation and reducing cell damage.
Patent Information
- Application Number
- CN202520249244.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing micromanipulation needles are difficult to level under a microscope, making micromanipulation difficult.
A first and second marking line are set on the micromanipulation oocyte holding needle, and an inward arc-shaped port is designed at the bend. Combined with polycarbonate plastic material and a specific bending angle, it is supplemented with strip-shaped protrusions to facilitate leveling and reduce cell damage.
The use of marking lines and bending design makes micromanipulation easier to level, reduces cell damage, and improves the convenience and safety of the operation.
Smart Images
Figure CN223653901U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tool used in assisted reproductive microscopic operation, especially to a holding egg needle for microscopic operation. BACKGROUND
[0002] In ICSI (intracytoplasmic sperm injection) and PGD (preimplantation genetic diagnosis), the patient's embryo needs to be inseminated and biopsied under the assistance of a microscopic operation needle, and the microscopic operation needle includes a holding egg needle (Holding Pipettes) and an injection needle (Injection Pipettes). The commonly used microscopic operation needle in the clinic is a disposable consumable made of borosilicate glass by Cook, Sunlight, Vitrolife and RI. It is inconvenient to adjust the level under the microscopic operation. SUMMARY
[0003] The utility model solves the technical problem to provide a holding egg needle for microscopic operation, which is convenient for assisting the leveling of the holding egg needle under the visual angle of microscopic injection.
[0004] To solve the above problems, a holding egg needle for microscopic operation is adopted, a first mark line and a second mark line are arranged at the bending part, the first mark line extends along the needle shaft from the front bending part to the rear bending part, the second mark line is distributed along the circumference of the rear bending part, and the needle tip is integrally formed on the rear bending part. When the needle tip is horizontal and the whole needle shaft is in a vertical upright state, the first mark line is just located in the vertical plane, forming an angle line between the front bending part and the rear bending part.
[0005] With such a structure, since the visual angle during microscopic injection is from top to bottom, two lines are marked on the needle in advance, so that the installation can be easily done. The two lines are the first mark line above the needle, and the second mark line is perpendicular to the needle shaft. When the needle is horizontal, the line is a straight line, and when the needle is not horizontal, the line is inclined. When the needle is horizontal, the line is a short line from the top, and a straight line from the side.
[0006] As a further improvement of the utility model, the second mark line is spaced on one side of the first mark line.
[0007] As a further improvement of the utility model, the needle tip has an inwardly recessed arc-shaped port, the inwardly recessed arc-shaped port is connected with an inner tube, and the inwardly recessed arc-shaped port and the connected inner tube are connected by a neck tube.
[0008] As a further improvement of the utility model, the recessed arc-shaped port is in the shape of a sandglass, gradually decreasing in diameter from outside to inside until the neck pipe, gradually expanding in diameter from the rounded end of the neck pipe to connect the inner pipe.
[0009] The port (suctioning oocyte end) is designed as a recessed arc-shaped port instead of a flat port, so that the oocyte is more easily adhered to the oocyte holding needle and more easily fixed, and potential cell damage is reduced.
[0010] As a further improvement of the utility model, the material of the oocyte holding needle is polycarbonate plastic.
[0011] As a further improvement of the utility model, the bending angle of the oocyte holding needle is 15°-45°.
[0012] As a further improvement of the utility model, the diameter OD of the needle tip is 80-150 um.
[0013] As a further improvement of the utility model, the diameter ID of the neck pipe is 10-40 um.
[0014] As a further improvement of the utility model, a strip-shaped protrusion 9 is arranged on the extension line above the first mark line 1.
[0015] As a further improvement of the utility model, the strip-shaped protrusion 9 is in the form of a triangular section, and the top ridge line thereof is in the same vertical plane as the first mark line 1.
[0016] With such a structure, the strip-shaped protrusion 9 helps the operator to judge the posture of the oocyte holding needle through different visual angle differences.
[0017] The utility model is convenient for microscopic operation and is conducive to leveling. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic view of an embodiment.
[0019] Figure 2 It is a sectional structural schematic view of an embodiment.
[0020] Figure 3 It is Figure 2 It is an internal schematic view of a section.
[0021] Figure 4 It is a top view of the bent rear section of the needle body.
[0022] Figure 5 It is a side view of the bent rear section of the needle body.
[0023] Figure 6 The holding egg needle with a strip-shaped protrusion.
[0024] Mark: 1, first mark line; 2, second mark line; 3, needle body bending front section; 4, needle body bending rear section; 5, needle tip; 6, recessed arc-shaped port; 7, inner tube; 8, necked tube; 9, strip-shaped protrusion. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0027] Embodiment 1
[0028] As shown in Figures 1-6 A micro-operation holding egg needle, a first mark line 1 and a second mark line 2 are arranged at the bending part of the needle, the first mark line 1 extends from the needle body bending front section 3 to the needle body bending rear section 4 along the needle body axial direction, the second mark line 2 is distributed circumferentially along the needle body bending rear section 4, and the needle body bending rear section 4 is integrally formed with a needle tip 5, when the needle tip 5 is horizontal and the entire needle body is in a vertical upright state, the first mark line 1 is just located in a vertical plane, forming an angle line of the needle body bending front section 3 and the needle body bending rear section 4.
[0029] With such structure, since the visual angle is from top to bottom when the microscope is used for injection, two lines are marked on the needle in advance, so that the installation can be easily done. The two lines are respectively the first mark line 1 above the needle, and the second mark line 2 whose projection line is perpendicular to the needle shaft. When the needle is horizontal, the line is a straight line, and when the needle is not horizontal, the line is inclined. When the needle is horizontal, the line is a short line from top, and a straight line from side.
[0030] In the embodiment, the second mark line 2 is spaced on one side of the first mark line 1.
[0031] In the embodiment, the needle tip 5 has an inwardly recessed arc-shaped port 6 which communicates with an inner tube 7, and between the inwardly recessed arc-shaped port 6 and the inner tube 7 is a necked tube 8.
[0032] In the embodiment, the inwardly recessed arc-shaped port 6 is in the shape of a sandglass, gradually decreasing in diameter from outside to inside until the necked tube 8, and gradually increasing in diameter from the end of the necked tube 8 to the inner tube 7.
[0033] The port (the port for absorbing the egg cell) is designed to be an inwardly recessed arc-shaped port from the original flat port. The original flat port design requires a larger suction force to fix the egg cell, and the egg cell is thus deformed to a certain extent, which causes potential damage to the cell. The arc-shaped port design makes the egg cell more easily adhere to the egg holding needle, and is more easily fixed, reducing potential damage to the cell.
[0034] In the embodiment, the material of the egg holding needle is polycarbonate plastic.
[0035] In the embodiment, the bending angle of the egg holding needle is 15°-45°.
[0036] In the embodiment, the diameter OD of the needle tip 5 is 80-150um.
[0037] In the embodiment, the diameter ID of the necked tube 8 is 10-40um.
[0038] In the embodiment, the needle tip can have an inner diameter ID of about 34um, an outer diameter OD of about 120um, and a needle angle of about 35 degrees.
[0039] In the embodiment, a strip-shaped protrusion 9 is arranged on the extension line above the first mark line 1.
[0040] In the embodiment, the strip-shaped protrusion 9 is in a triangular cross-section form, and the top edge line thereof is in the same vertical plane as the first mark line 1.
[0041] With such structure, the strip-shaped protrusion 9 helps the operator to judge the posture of the egg holding needle through different visual angle differences.
[0042] The utility model discloses convenient micro - operation, be favorable to leveling.
[0043] The above content is further detailed description of the utility model in combination with specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For the skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of equivalent substitutions or obvious variations can be made, and the performance or use is the same, and all should be regarded as belonging to the protection scope of the utility model.
Claims
1. A micromanipulation oocyte-holding needle, characterized in that... A first marking line (1) and a second marking line (2) are set at the bend. The first marking line (1) extends from the front section (3) of the needle body along the needle body axis to the back section (4) of the needle body. The second marking line (2) is distributed circumferentially along the back section (4) of the needle body. The back section (4) of the needle body is integrally formed with a needle tip (5). When the needle tip (5) is horizontal and the entire needle body is in a vertical upright state, the first marking line (1) is exactly located in the vertical plane, forming the angle line between the front section (3) of the needle body and the back section (4) of the needle body.
2. The micromanipulation oocyte-holding needle according to claim 1, characterized in that... The second marking line (2) is spaced on one side of the first marking line (1).
3. The micromanipulation oocyte-holding needle according to claim 1, characterized in that... The needle tip (5) has a recessed arc-shaped port (6), which is connected to the inner tube (7), and there is a constricted tube (8) between the recessed arc-shaped port (6) and the inner tube (7).
4. The micromanipulation oocyte-holding needle according to claim 3, characterized in that... The recessed arc-shaped port (6) is hourglass-shaped, gradually narrowing in diameter from the outside to the inside until it reaches the constricted tube (8), and gradually widening in diameter from the rounded end of the constricted tube (8) to connect to the inner tube (7).
5. The micromanipulation oocyte-holding needle according to claim 1, characterized in that... The egg-holding needle is made of polycarbonate plastic.
6. The micromanipulation oocyte-holding needle according to claim 1, characterized in that... The bending angle of the egg-holding needle is 15° to 45°.
7. The micromanipulation oocyte-holding needle according to claim 1, characterized in that... The diameter OD of the needle tip (5) is 80-150 μm.
8. The micromanipulation oocyte holding needle according to claim 3, characterized in that... The diameter ID of the constricted tube (8) is 10-40 μm.
9. The micromanipulation oocyte-holding needle according to claim 1, characterized in that... A strip-shaped protrusion (9) is provided on the extension line above the first marking line (1).
10. The micromanipulation oocyte-holding needle according to claim 9, characterized in that... The strip protrusion (9) has a triangular cross-section, and its top edge is in the same vertical plane as the first marking line (1).