CN109259833B - Single-cavity variable-diameter oocyte collector - Google Patents
Single-cavity variable-diameter oocyte collector Download PDFInfo
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- CN109259833B CN109259833B CN201811107747.1A CN201811107747A CN109259833B CN 109259833 B CN109259833 B CN 109259833B CN 201811107747 A CN201811107747 A CN 201811107747A CN 109259833 B CN109259833 B CN 109259833B
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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
- A61B17/42—Gynaecological or obstetrical instruments or methods
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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
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B17/425—Gynaecological or obstetrical instruments or methods for reproduction or fertilisation
- A61B17/435—Gynaecological or obstetrical instruments or methods for reproduction or fertilisation for embryo or ova transplantation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2046—Tracking techniques
- A61B2034/2063—Acoustic tracking systems, e.g. using ultrasound
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Abstract
The invention discloses a single-cavity variable-diameter oocyte collector, which comprises a puncture needle, a handle, a catheter sleeve, an attraction catheter and a silica gel plug which are sequentially connected, wherein the silica gel plug is connected with a conical joint through a vacuum catheter; the needle tube adopts a reducing needle tube with a thin front section and a thick rear section; the ultrasonic development enhancement band group comprises a plurality of ultrasonic development enhancement bands, and the plurality of ultrasonic development enhancement bands are sequentially distributed on the outer wall surface of the needle tube at equal intervals along the axial direction of the needle tube; each ultrasonic development enhancement belt is composed of a linear groove group arranged along the axial direction of the needle tube. The single-cavity variable-diameter oocyte collector enables the ultrasonic imaging of the puncture needle to present scales with alternate light and shade, is easy for an operator to directly observe the needle insertion depth on a display screen of an ultrasonic imaging system in an operation in real time, and enables the operation to be more accurate.
Description
Technical Field
The invention relates to a single-cavity variable-diameter oocyte collector, which is used for human Assisted Reproduction (ART) ultrasonic imaging guided ovum taking, and belongs to the field of medical instruments.
Background
In the medical field, a target site is punctured by ultrasound image guidance to collect body fluids, tissues, cells, introduce medical solutions, or the like. During operation, a doctor places an ultrasonic probe on a part to be punctured or the body surface of the part to be punctured and inserts a needle from the side surface of the probe. On the display screen of the imaging system, the tissue structure, the needle and the needle point can be seen, so that the arrival of the puncture needle at the target position can be accurately grasped. In the actual operation process, the outer wall surface of the puncture needle is smooth, so that the mirror reflection is generated on incident sound waves, the included angle between the puncture needle and an ultrasonic beam is smaller (the angle of the needle is more inclined), the less sound waves can be received by the ultrasonic probe, the more difficult the puncture needle is to develop, the needle or the needle head cannot be seen on the display screen of the ultrasonic imaging system, and the accuracy of the ultrasonic positioning puncture needle is greatly reduced. Relates to the field of human Assisted Reproductive Technology (ART), and particularly to puncture guided by ultrasonic imaging in the process of puncturing and taking eggs through vagina. It is known that in this type of operation, there is also the problem of the aforementioned unclear visualization of the puncture needle or needle head.
Aiming at the problem that the ultrasonic development of a puncture needle is not clear, the prior patent provides a solution:
chinese patent 200580051150.4 discloses an ultrasonic puncture needle in which a sharp edge is formed at the tip of a puncture needle body, and at least one rectangular mirror is formed by a triangular pyramidal concave pit at a predetermined position of the puncture needle body. A puncture needle capable of clearly imaging even when an angle formed by an ultrasonic wave irradiation path and the axis of the puncture needle is small.
Chinese patent 200610066108.6 provides a puncture needle comprising a tubular outer cylinder needle having a blade at its tip and an inner needle inserted into the inner cavity of the outer cylinder needle; the outer circumference of the region from the blade tip to the base end of the outer cylinder needle is subjected to a concave processing, and the outer circumference of the region from the tip to the base end of the inner needle is subjected to a rough processing. Thus, when the puncture is guided by ultrasonic imaging, more clear ultrasonic development can be seen up to the blade tip of the puncture needle.
However, in the case of the ultrasonic puncture needle disclosed in patent 200580051150.4, although the ultrasonic image of the distal end is clear, the ultrasonic image of the remaining unprocessed portion is not ideal. In addition, in the case of a puncture needle which does not require a resin coating, the formation of the triangular pyramidal-shaped concave portions by electric machining or punching increases the puncture resistance of the needle. In the puncture needle disclosed in patent 200610066108.6, if a portion of the outer cylinder needle which cannot reflect ultrasonic waves to the detection section of the ultrasonic diagnostic apparatus remains without performing rough processing of the inner needle, the ultrasonic development effect of the puncture needle up to the blade tip end thereof is significantly reduced because an unprocessed smooth outer peripheral surface remains in the concave processing of the outer periphery of the outer cylinder needle.
In the prior art, a puncture needle for taking an egg in an egg taking operation is generally subjected to special treatment, such as groove processing or bulge processing, on a region near a needle point of the puncture needle, so that more ultrasonic waves are received by a probe in the region near the needle point of the puncture needle, and ultrasonic development of the region is enhanced.
US7470249 discloses an aspiration and irrigation needle assembly for oocyte retrieval, the irrigation needle in the assembly being characterized by: the front end of the flushing needle is treated by special treatment, such as indentation and knurling, so that the ultrasonic echo characteristic of the flushing needle is improved.
Chinese patent 201720152801.9 discloses an image feedback ovum picking needle, wherein the front end of a stainless steel needle tube is provided with a ventral-edge needle tip or a dorsal-ventral double-edge needle tip, and the surface of the stainless steel needle tube behind the needle tip is provided with an image feedback area; the surface of the image feedback area is in a dotted shape, a frosted shape or a threaded shape.
Chinese patent 201220497802.4 discloses a puncture needle of oocyte collector with ultrasonic positioning lines, which comprises a needle tube, wherein the front end surface of the needle tube is provided with a needle point, the outer wall of the front end of the needle tube is provided with ultrasonic identification lines, and the ultrasonic identification lines are composed of a plurality of annular grooves which are sequentially arranged along the central axis of the needle tube and are parallel to each other. Specifically, the method comprises the following steps: a certain gap is formed between the adjacent annular grooves; the width of the annular groove is 0.1 mm-1 mm; the axial length of the ultrasonic identification lines is 5 mm-30 mm.
Chinese patent 201810132418.6 discloses an egg taking system suitable for one-handed operation, in which the puncture needle is characterized in that: the front end of the puncture needle is provided with an ultrasonic identification line; the axial length of the ultrasonic identification lines is 4 mm-30 mm. In the specific embodiment of this patent, the ultrasonic identification lines may be annular ultrasonic identification lines, and the annular ultrasonic identification lines are formed by rows of point-like grooves.
Therefore, most of the technologies disclosed in the above patents perform special treatment on the front end of the needle, for example, grooves or protrusions in a dot shape, a frosted shape, a threaded shape, an annular shape, and the like are added on the front end of the needle, so that the ultrasonic imaging of the needle head is enhanced, and the accuracy of the ultrasonic positioning of the puncture needle is improved to a certain extent. Although, in the puncture needle disclosed in patent 200610066108.6, more clear ultrasonic development up to the blade tip of the puncture needle can be obtained, if the rough processing of the inner needle is removed (for example, the puncture needle is only of a single tube configuration), the concave processing of only the outer periphery of the outer cylinder needle results in less clear ultrasonic development up to the blade tip of the puncture needle, and the effectiveness of this method is reduced.
In addition, in the process of an ovum taking operation, particularly when the puncture is carried out, an operator often needs to move the sight line from the display screen to the puncture needle, the puncture needle on the hand is observed to confirm the depth of the puncture needle, a doctor is very inconvenient to operate, and the accuracy of the operation is also influenced. As is known, the effective length of the puncture needle for the ovum taking operation is longer, about 30 cm-35 cm, even if the ultrasonic imaging of the needle head of the puncture needle in the prior art is clear and identifiable, because the ultrasonic development of the rest parts of the puncture needle which are not specially processed is difficult, a doctor cannot directly observe the needle inserting depth on a display screen in real time, and the accuracy of the operation is also reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a single-cavity variable-diameter oocyte collector, so that the ultrasonic imaging of a puncture needle presents scales with alternate light and shade, an operator can easily and directly observe the needle insertion depth on a display screen of an ultrasonic imaging system in real time in an operation, and the operation is more accurate.
The technical scheme for realizing the purpose is as follows: a single-cavity variable-diameter oocyte collector comprises a puncture needle, a handle, a catheter sleeve, an attraction catheter and a silica gel plug which are sequentially connected, wherein the silica gel plug is connected with a conical joint through a vacuum catheter;
the needle tube is a variable diameter needle tube with a thin front section and a thick rear section, and the front section of the needle tube is connected with the needle point;
the ultrasonic development enhancement band group comprises a plurality of ultrasonic development enhancement bands, the plurality of ultrasonic development enhancement bands are sequentially distributed on the outer wall surface of the needle tube at equal intervals along the axial direction of the needle tube, and one ultrasonic development enhancement band is positioned at the front section of the needle tube;
each ultrasonic development enhancement belt is composed of a linear groove group arranged along the axial direction of the needle tube;
the linear groove group is a curve which is periodically changed, and the axis of the curve is parallel to or staggered with the axis of the needle tube;
the linear groove group divides the cross section of the needle tube into a plurality of areas uniformly along the radial direction of the needle tube;
the linear groove group is formed by processing the outer wall surface of the needle tube by adopting ultrashort pulse laser.
The single-cavity variable-diameter oocyte collector is characterized in that the curve is a broken line.
The single-cavity variable-diameter oocyte collector is characterized in that the number of the ultrasonic development enhancement belts is at least 3.
The single-cavity variable-diameter oocyte collector is characterized in that the length of each ultrasonic development enhancement band along the axial direction of the needle tube is 10-60 mm, and the distance between every two adjacent ultrasonic development enhancement bands is 20-100 mm.
The single-cavity variable-diameter oocyte collector is characterized in that the ultrasonic development enhancement belts are arranged at the two ends of the needle tube, and the distance between the ultrasonic development enhancement belts is equal.
The single-cavity variable-diameter oocyte collector comprises a needle tube.
The single-cavity variable-diameter oocyte collector is characterized in that the linear groove groups divide the cross section of the needle tube into 3-4 areas along the radial direction of the needle tube.
The single-cavity variable-diameter oocyte collector comprises a linear groove group, wherein the linear groove group comprises at least 3 linear grooves, the width of each linear groove is not more than 600um, and the depth of each linear groove is not more than 20 um.
The single-cavity variable-diameter oocyte collector is characterized in that the linear groove group is formed by processing the outer wall surface of the needle tube through femtosecond laser with the pulse width not more than 10 ps.
The single-cavity variable-diameter oocyte collector is characterized in that the diameter of a light spot of femtosecond laser is 10um, the wavelength is not more than 1033nm, the output power is not more than 10W, the repetition frequency is 10 KHz-1000 KHz, and the laser scanning speed is 0.1-1 mm/s.
According to the single-cavity variable-diameter oocyte collector, the plurality of ultrasonic development enhancement belts formed by the linear groove groups are uniformly distributed on the needle tube of the puncture needle of the single-cavity variable-diameter oocyte collector, the ultrasonic development enhancement belts are bright areas on the display screen of an imaging system, the outer wall surfaces of the smooth needle tubes spaced by the ultrasonic development enhancement belts are dark areas, namely, the ultrasonic imaging of the puncture needle presents scales with alternate light and shade, an operator can conveniently observe the needle insertion depth on the display screen of the ultrasonic imaging system in real time in an operation, and the accuracy of the operation is improved. And the ultrashort pulse laser is adopted for processing, so that the processed outer wall surface has good surface finish, the puncture resistance is effectively reduced, the vaginal wall and the ovarian stroma can be punctured conveniently, and the puncture body feeling of both doctors and patients is good.
Drawings
FIG. 1 is a schematic structural diagram of a single-chamber variable-diameter oocyte collector of the present invention;
FIG. 1a is a schematic structural view of a puncture needle of a single-chamber variable-diameter oocyte collector of the present invention;
FIG. 2a is an isometric view of a puncture needle of the single chamber variable diameter oocyte collector of the present invention;
FIG. 2b is a top view of the puncture needle of the single chamber variable diameter oocyte collector of the present invention;
FIG. 3 is a circumferential development of an ultrasound contrast enhancement tape;
FIG. 4 is an enlarged view of the variable diameter part of the single-chamber variable diameter oocyte collector in the first embodiment;
FIG. 5 is a sectional view taken along the line B-B in FIG. 4 (in the axial direction of the puncture needle);
FIG. 6 is a sectional view taken along the line A-A in FIG. 4 (in the radial direction of the puncture needle);
FIG. 7 is a structural diagram of a puncture needle of a single chamber variable diameter oocyte collector in the third embodiment.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
the first embodiment is as follows:
referring to fig. 1, fig. 1a, fig. 2a and fig. 2b, the single-chamber variable-diameter oocyte collector of the present invention includes a puncture needle 10, a handle 20, a catheter sleeve 30, an aspiration catheter 40 and a silicone plug 50 which are connected in sequence, the silicone plug 50 is connected to a conical joint 70 through a vacuum catheter 60, the puncture needle 10 is sleeved with a protective sheath 80, the puncture needle 10 includes a needle tube 1 and a needle tip 100 connected thereto, and an ultrasonic development enhancement band group 2 is arranged on an outer wall surface of the needle tube 1; the needle tube 1 adopts a reducing needle tube with a thin front section and a thick rear section, namely the diameter of the front section a of the needle tube 1 is smaller than that of the rear section b of the needle tube 1, and the front section a of the needle tube 1 is connected with the needle point 100; the ultrasonic development enhancement band group 2 comprises a plurality of ultrasonic development enhancement bands 3, the plurality of ultrasonic development enhancement bands 3 are sequentially distributed on the outer wall surface of the needle tube 1 at equal intervals along the axial direction of the needle tube 1, and one ultrasonic development enhancement band 3 is positioned at the front section a of the needle tube 1.
Referring to fig. 3, each ultrasonic development enhancement tape 3 is formed of a linear groove group 4 arranged in the axial direction of the needle tube 1; the linear shape in the linear groove group 4 is a curve which changes periodically, the curve is preferably a sine curve 41 or a broken line 42, the axis o of the curve is parallel to or staggered with the axis o 'of the needle tube 1, and when the curve is staggered, the angle between the axis o of the curve and the axis o' of the needle tube 1 is 15 degrees or 165 degrees. The linear groove group 4 equally divides the cross section of the needle tube 1 into a plurality of areas along the radial direction of the needle tube 1, namely, the linear groove group 4 equally divides the cross section circle of the needle tube 1 into 360 degrees along the radial direction of the needle tube 1; the linear groove group 4 is formed by processing the outer wall surface of the needle tube 1 by adopting ultrashort pulse laser.
Referring to fig. 4 to 6, in a single-chamber variable-diameter oocyte collector, the length of a puncture needle used for collecting oocytes in an ovum taking operation is about 30cm, which can be determined according to the use requirement. The length of the puncture needle in this embodiment is preferably 30 cm.
Referring to fig. 2a and 2b, the ultrasonic development enhancement tape set 2 includes 5 ultrasonic development enhancement tapes 3, each ultrasonic development enhancement tape 3 has the same length along the axial direction of the needle tube 1, the distance between every two adjacent ultrasonic development enhancement tapes 3 is the same, the length c of each ultrasonic development enhancement tape 3 along the axial direction of the needle tube 1 is 30mm, and the distance d between every two adjacent ultrasonic development enhancement tapes is 30 mm. Each of the ultrasonic development enhancing tapes 3 is constituted by a linear groove group 4 provided along the axial direction of the needle tube 1.
Referring to FIGS. 5 and 6, the linear groove group 4 divides the cross section of the needle cannula 1 into 3 regions in the radial direction of the needle cannula 1. Linear groove group 4 is constituted by 6 linear grooves 43, i.e., each zone includes two linear grooves 43, and each linear groove 43 has a width of not more than 600um and a depth of not more than 20 um. Preferably, the linear groove 43 has a semicircular sectional shape, i.e., the linear groove 43 has a semicircular shape in the cross section of the needle tube 1. The width of the linear groove 43 is 100um and the depth is 20 um.
The linear groove group 4 is formed by linear grooves 43 with semicircular (width is 100um and depth is 20um) sections, the cross section circle of the needle tube 1 is divided into 3 areas by arranging the linear groove group 4, and ultrasonic imaging of the ultrasonic development enhancement belt 3 can be obviously distinguished from surrounding tissues and unprocessed parts (smooth outer wall surface of the needle tube) on the needle tube 1 no matter the included angle between a puncture needle and an ultrasonic beam. Moreover, the ultrasonic imaging of the unprocessed part (smooth outer wall surface of the needle tube) on the ultrasonic developing enhancement belt group 2 and the needle tube 1 is in a state of light and shade alternative, and the size design of the ultrasonic developing enhancement belt group are adopted, so that an operator can directly observe the needle insertion depth on a display screen of an ultrasonic imaging system in an operation in real time, and the accuracy of the operation is improved.
The linear groove group 4 is formed by processing the outer wall surface of the needle tube by adopting ultrashort pulse laser, and each process parameter can be adjusted according to requirements. Ensures that the processed outer wall surface has good surface smoothness and smoothness of puncture, is beneficial to puncture the vaginal wall and ovarian stroma, and ensures that the puncture body feelings of both doctors and patients are good.
The linear groove group 4 is formed by femtosecond laser processing with the pulse width of 8 ps; the diameter of a femtosecond laser spot in the processing process is about 10um, the wavelength of laser is 532nm, the output power is not more than 10W, and the repetition frequency is 10 KHz-1000 KHz. The laser scanning speed is 0.1-1 mm/s.
Example two:
a single-cavity variable-diameter oocyte collector is almost the same as the single-cavity variable-diameter oocyte collector in the first embodiment, and the difference is that the section of a linear groove 43 is semicircular, namely the shape of the linear groove 43 on the cross section of a needle tube 1 is semicircular. The width of the linear groove 43 is 80um and the depth is 15 um.
The linear groove group 4 is formed by femtosecond laser processing with the pulse width of 8 ps; the diameter of a light spot of the femtosecond laser in the processing process is 10um, the wavelength is 532nm, the output power is not more than 8W, the repetition frequency is 10 KHz-1000 KHz, and the laser scanning speed is 0.1-1 mm/s.
Example three:
referring to fig. 7, a single-chamber variable-diameter oocyte collector is substantially the same as the single-chamber variable-diameter oocyte collector of the first embodiment, except that the length of the puncture needle 10 is 33 cm; the ultrasonic development enhancement belts 3 on the outer wall surface of the rear section b of the needle tube 1 are equal in length along the axial direction of the needle tube, the ultrasonic development enhancement belts 3 on the outer wall surface of the front section a of the needle tube 1 are unequal in length along the axial direction of the needle tube to the ultrasonic development enhancement belts 3 on the outer wall surface of the rear section b of the needle tube 1, and the distance between every two adjacent ultrasonic development enhancement belts is equal. Specifically, the length c1 of the ultrasonic development enhancement tape 3 on the outer wall surface of the front section a of the needle tube 1 in the needle tube axial direction is 30mm, the length c2 of the ultrasonic development enhancement tape 3 on the outer wall surface of the rear section b of the needle tube 1 in the needle tube axial direction is 40mm, and the distance d' between every two adjacent ultrasonic development enhancement tapes is 30 mm. The linear groove 43 has a semicircular sectional shape, i.e., the linear groove 43 has a semicircular shape in the cross section of the needle tube 1. The width of the linear groove 43 is 90um and the depth is 15 um.
The linear groove group 4 is formed by femtosecond laser processing with the pulse width of 8 ps; the diameter of a femtosecond laser spot in the processing process is about 10um, the wavelength of laser is 532nm, the output power is not more than 8W, the repetition frequency is 10 KHz-1000 KHz, and the laser scanning speed is 0.1-1 mm/s.
The single-cavity variable-diameter oocyte collector adopts the linear grooves 43 with semicircular sections to form the linear groove group 4, and divides the section circle of the outer wall surface of the needle tube 1 into 3 areas by arranging the linear groove group 4, so that the ultrasonic imaging of the ultrasonic development enhancement belt 3 can be obviously distinguished from the surrounding tissues and the unprocessed parts (smooth outer wall surface of the needle tube) on the needle tube 1 no matter the included angle between the puncture needle and an ultrasonic beam. Moreover, the ultrasonic imaging of the unprocessed part (smooth outer wall surface of the needle tube) on the ultrasonic developing enhancement belt group 2 and the needle tube 1 is in a state of light and shade alternative, and the size design of the ultrasonic developing enhancement belt group are adopted, so that an operator can directly observe the needle insertion depth on a display screen of an ultrasonic imaging system in an operation in real time, and the accuracy of the operation is improved. And the linear groove group 4 is formed by processing the outer wall surface of the needle tube by adopting ultrashort pulse laser, and each process parameter can be adjusted according to requirements. Ensures that the processed outer wall surface has good surface smoothness and smoothness of puncture, is beneficial to puncture the vaginal wall and ovarian stroma, and ensures that the puncture body feelings of both doctors and patients are good.
In conclusion, the single-cavity variable-diameter oocyte collector enables the ultrasonic imaging of the puncture needle to present scales with alternate light and shade, is easy for an operator to directly observe the needle insertion depth on a display screen of an ultrasonic imaging system in an operation in real time, and enables the operation to be more accurate.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. A single-cavity variable-diameter oocyte collector comprises a puncture needle, a handle, a catheter sleeve, an attraction catheter and a silica gel plug which are sequentially connected, wherein the silica gel plug is connected with a conical joint through a vacuum catheter;
the needle tube is a variable diameter needle tube with a thin front section and a thick rear section, and the front section of the needle tube is connected with the needle point;
the ultrasonic development enhancement band set comprises a plurality of ultrasonic development enhancement bands, the plurality of ultrasonic development enhancement bands are sequentially distributed on the outer wall surface of the needle tube at equal intervals along the axial direction of the needle tube, and one ultrasonic development enhancement band is positioned at the front section of the needle tube;
each ultrasonic development enhancement belt is composed of a linear groove group arranged along the axial direction of the needle tube;
the linear groove group is a curve which is periodically changed, and the axis of the curve is parallel to or staggered with the axis of the needle tube;
the linear groove group divides the cross section of the needle tube into a plurality of areas uniformly along the radial direction of the needle tube;
the linear groove group is formed by processing the outer wall surface of the needle tube by adopting ultrashort pulse laser;
the needle tube is uniformly distributed with a plurality of ultrasonic development enhancement belts formed by the linear groove groups, and the ultrasonic development enhancement belts are bright areas on a display screen of an ultrasonic imaging system, and the outer wall surfaces of the smooth needle tubes spaced by the ultrasonic development enhancement belts are dark areas, so that the ultrasonic imaging of the puncture needle presents scales with alternate light and dark colors, the needle insertion depth can be directly observed on the display screen of the ultrasonic imaging system in real time, and the accuracy of the operation is improved.
2. The single chamber variable diameter oocyte collector of claim 1, wherein the curve adopts a broken line.
3. The single chamber variable diameter oocyte collector of claim 1, wherein the number of the ultrasonic development enhancement bands is at least 3.
4. The single-cavity variable-diameter oocyte collector according to claim 1, wherein the length of each ultrasonic development enhancement band along the axial direction of the needle tube is 10 mm-60 mm, and the distance between every two adjacent ultrasonic development enhancement bands is 20 mm-100 mm.
5. The single-cavity variable-diameter oocyte collector according to claim 4, wherein the length of each ultrasonic development enhancement band along the axial direction of the needle tube is equal, and the distance between every two adjacent ultrasonic development enhancement bands is equal.
6. The single-cavity variable-diameter oocyte collector according to claim 4, wherein the ultrasonic development enhancement bands on the outer wall surface of the rear section of the needle tube are equal in length in the axial direction of the needle tube, the ultrasonic development enhancement bands on the outer wall surface of the front section of the needle tube are unequal in length in the axial direction of the needle tube to the ultrasonic development enhancement bands on the outer wall surface of the rear section of the needle tube in length in the axial direction of the needle tube, and the distance between every two adjacent ultrasonic development enhancement bands is equal.
7. The single-cavity variable-diameter oocyte collector according to claim 1, wherein the linear groove sets divide the cross section of the needle tube into 3-4 areas equally along the radial direction of the needle tube.
8. The single chamber variable diameter oocyte collector of claim 1 or 7, wherein the linear groove set comprises at least 3 linear grooves, each of the linear grooves has a width not exceeding 600um and a depth not exceeding 20 um.
9. The single-cavity variable-diameter oocyte collector according to claim 1, wherein the linear groove set is formed by processing the outer wall surface of the needle tube through femtosecond laser with the pulse width not more than 10 ps.
10. The single-cavity variable-diameter oocyte collector according to claim 9, wherein the femtosecond laser has a spot diameter of 10um, a wavelength of not more than 1033nm, an output power of not more than 10W, a repetition frequency of 10KHz to 1000KHz, and a laser scanning speed of 0.1 to 1 mm/s.
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| CN201811107747.1A CN109259833B (en) | 2018-09-21 | 2018-09-21 | Single-cavity variable-diameter oocyte collector |
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| CN201811107747.1A CN109259833B (en) | 2018-09-21 | 2018-09-21 | Single-cavity variable-diameter oocyte collector |
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| CN101040790A (en) * | 2006-03-24 | 2007-09-26 | 住友电木株式会社 | Puncture needle |
| CN201996634U (en) * | 2011-03-22 | 2011-10-05 | 欧加录 | Novel epidural anesthesia needle |
| CN203089212U (en) * | 2013-01-18 | 2013-07-31 | 珠海成富医疗器材有限公司 | Ultrasound guiding puncture needle |
| CN103735288A (en) * | 2013-12-18 | 2014-04-23 | 杭州安体科技有限公司 | Single-cavity oocyte collector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017027746A1 (en) * | 2015-08-11 | 2017-02-16 | Access Scientific, Llc | Echogenic pattern and medical articles including same |
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|---|---|---|---|---|
| CN101040790A (en) * | 2006-03-24 | 2007-09-26 | 住友电木株式会社 | Puncture needle |
| CN201996634U (en) * | 2011-03-22 | 2011-10-05 | 欧加录 | Novel epidural anesthesia needle |
| CN203089212U (en) * | 2013-01-18 | 2013-07-31 | 珠海成富医疗器材有限公司 | Ultrasound guiding puncture needle |
| CN103735288A (en) * | 2013-12-18 | 2014-04-23 | 杭州安体科技有限公司 | Single-cavity oocyte collector |
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