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Disposable oocyte collector

A disposable technology for oocytes, applied in the field of medical devices, can solve the problems of unclear ultrasound imaging, real-time observation of needle insertion depth, and reduced effectiveness, and achieve good surface finish, good puncture feel, and reduced puncture resistance. Effect

Active Publication Date: 2019-01-25
SHANGHAI KANGDELAI ENTERPRISE DEV GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although, in a puncture needle disclosed in patent 200610066108.6, a sharper ultrasonic imaging can be obtained up to the tip end of the puncture needle. Concave machining of the needle periphery will result in less clear ultrasound visualization up to the end of the needle tip, reducing the effectiveness of this method
[0013] In addition, during the egg retrieval operation, especially when the puncture is in progress, the operator often needs to move his sight from the display screen to the puncture needle, and confirm the depth of the needle by observing the puncture needle on his hand, which is very inconvenient for the doctor to operate. It also affects the accuracy of the operation
It is well known that the effective length of the puncture needle used in the egg retrieval operation is relatively long, about 30cm to 35cm. Even if the ultrasound imaging of the needle head of the puncture needle in the existing technical solution is clearly identifiable, it is difficult to develop the other parts of the puncture needle without special treatment. Doctors cannot directly observe the depth of needle insertion on the display screen in real time, which also reduces the accuracy of surgical operations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] see Figure 1 to Figure 6 , a disposable oocyte collector, comprising a puncture needle 10, a handle 20, a catheter sleeve 30, a suction catheter 40 and a silicone plug 50 connected in sequence, the silicone plug 50 is connected to a conical joint 70 through a vacuum catheter 60, and the puncture needle 10 is sleeved with a protective sheath 80. The puncture needle 10 includes a needle tube 1 and a needle point 100 connected thereto. An ultrasound imaging enhancement band group 2 is arranged on the outer wall of the needle tube 1; Enhancement bands 3, several ultrasonic imaging enhancement bands 3 are distributed on the outer wall of the needle tube 1 at equal intervals along the axial direction of the needle tube 1; it is known that the length of the puncture needle used to collect oocytes in egg retrieval is mostly 30 cm It can be determined according to the requirements of use. The length of the puncture needle in this embodiment is preferably 30 cm.

[0045] see a...

Embodiment 2

[0050] see Figure 7 , a disposable oocyte collector, which is roughly the same as the disposable oocyte collector in Embodiment 1, except that the length of the puncture needle is 35 cm. The axial length a' of the ultrasonic development enhancement band 3 along the needle tube 1 is 40 mm, and the distance b' between every two adjacent ultrasonic development enhancement bands is 30 mm. The cross-sectional shape of the linear groove 43 is a semicircle, that is, the shape of the linear groove 43 on the cross section of the needle tube 1 is a semicircle. The linear groove 43 has a width of 90um and a depth of 15um.

[0051] The linear groove group 4 is processed by a femtosecond laser with a pulse width of 8ps; the diameter of the femtosecond laser spot during processing is 10um, the wavelength is 1028nm, the output power does not exceed 8W, and the repetition frequency is 10KHz-1000KHz. The laser scanning speed is 0.1~1mm / s.

Embodiment 3

[0053] see Figure 8a and Figure 8b , a single-use oocyte collector, on the basis of Embodiment 1, also includes a flushing catheter 90 and a locking joint 91, and the locking joint 91 is connected to the handle 20 through the flushing catheter 90; the puncture needle 10 includes The inner needle 12 and the outer needle 11 are arranged coaxially to the outside, the suction catheter 10 communicates with the inner needle 12 through the catheter sleeve 30 and the handle 30 in turn, and the irrigation catheter 90 passes through the handle 20 and the channel between the inner needle 12 and the outer needle 11 13 communicates; the outer needle 11 includes a needle tube 1 and a needle tip 100, so that the ultrasonic imaging enhancement band group 2 is arranged on the outer wall of the needle tube 1 of the outer needle 11.

[0054] The disposable oocyte collector of the present invention adopts a linear groove 43 with a semicircular section to form a linear groove group 4, and divid...

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Abstract

The invention discloses a disposable oocyte collector, comprising a puncture needle, a handle, a catheter sleeve, a suction catheter and a silicone plug which are connected in turn. The puncture needle comprises a needle tube and a needle tip connected with the needle tube. An ultrasonic developing reinforcing belt group is disposed on an outer wall surface of the needle tube. The ultrasound development enhancement band group comprises a plurality of ultrasound development enhancement bands. Each of the ultrasound development enhancement bands is constituted by a linear groove group arranged along an axial direction of the needle tube. The linear groove group divides the cross section of the needle tube into a plurality of regions along the radial direction of the needle tube. The linear groove group adopts ultrashort pulse laser to process the outer wall surface of the needle tube. The disposable oocyte collector of the present invention enables the ultrasonic imaging of the punctureneedle to present a light-dark alternating scale, facilitates the operator to directly observe the needle feeding depth in real time on the display screen of the ultrasonic imaging system during the operation, and makes the operation more accurate.

Description

technical field [0001] The invention relates to a disposable oocyte collector, which is used for human assisted reproductive technology (ART) ultrasound imaging-guided oocyte retrieval, and belongs to the field of medical devices. Background technique [0002] In the medical field, guided by ultrasound images, puncture is used to puncture the target site to collect body fluids, tissues, cells or introduce medicinal liquid. During the operation, the doctor places the ultrasound probe on the site to be punctured or on the body surface of the site to be punctured, and inserts the needle from the side of the probe. On the display screen of the imaging system, the tissue structure, needle and needle tip can be seen, so as to accurately grasp the puncture needle to reach the target position. In the actual operation process, since the outer wall of the puncture needle is smooth, it produces mirror reflection to the incident sound wave, and the smaller the angle between the punctur...

Claims

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Application Information

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IPC IPC(8): A61B17/42A61B17/435A61B34/20
CPCA61B17/42A61B17/435A61B34/20A61B2034/2063
Inventor 张桂生勒湾湾贺星
Owner SHANGHAI KANGDELAI ENTERPRISE DEV GRP CO LTD
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