CN219720824U - Puncture needle for reducing fetus - Google Patents
Puncture needle for reducing fetus Download PDFInfo
- Publication number
- CN219720824U CN219720824U CN202222385154.XU CN202222385154U CN219720824U CN 219720824 U CN219720824 U CN 219720824U CN 202222385154 U CN202222385154 U CN 202222385154U CN 219720824 U CN219720824 U CN 219720824U
- Authority
- CN
- China
- Prior art keywords
- handle
- needle
- puncture
- steel wire
- branch pipe
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Links
- 210000003754 fetus Anatomy 0.000 title claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 230000002147 killing effect Effects 0.000 claims abstract description 19
- 238000001802 infusion Methods 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 210000002257 embryonic structure Anatomy 0.000 abstract description 3
- 210000001161 mammalian embryo Anatomy 0.000 description 22
- 230000001605 fetal effect Effects 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
Abstract
The utility model relates to a puncture needle for reducing a tire, which comprises a handle, a needle tube, a connecting tube, a negative pressure suction head and a twisting device, wherein the interior of the handle is hollow, the needle tube is fixed at the upper end of the handle, the connecting tube is fixed at the lower end of the handle, one end of the connecting tube, which is far away from the handle, is fixedly connected with the negative pressure suction head, and the needle tube, the handle, the connecting tube and the negative pressure suction head are sequentially communicated; one side of the handle is provided with a branch pipe which is communicated with the handle; the killing device comprises a steel wire and a shaft sleeve, the shaft sleeve is arranged at one end of the branch pipe far away from the handle in a sliding manner, the steel wire penetrates through the shaft sleeve and the branch pipe and extends to the pipe orifice of the needle tube, and a rotary handle is arranged at one end of the steel wire, which is located outside the shaft sleeve. The beneficial effects of the utility model are as follows: the adjustable type killing device can better kill embryos with different sizes, and has higher killing efficiency compared with a fixed rotary type in the prior art.
Description
Technical Field
The utility model relates to the technical field of puncture needle for reducing fetus, in particular to a puncture needle for reducing fetus.
Background
The puncture needle for reducing the fetus is commonly used for taking eggs and also can be used for reducing the fetus of a pregnant woman, and the puncture needle for reducing the fetus on the market can meet the conditions that the embryo in the pregnant woman is large, and the needle tube of the puncture needle for reducing the fetus is not easy to stab the embryo heart during the process of reducing the fetus, so that the embryo needs to be killed by using the device for killing the puncture needle for reducing the fetus. CN201820285900.9 discloses a tire reducing needle, on which a killing device is arranged, but the length of the killing device extending out of the needle tube is fixed, and cannot be controlled according to the size of the embryo, if the embryo is bigger, only the part of the embryo close to the needle tube can be killed, the killing area is small, and the killing efficiency is low.
Disclosure of Invention
The utility model aims to solve the technical problem of improving the killing efficiency of a puncture needle for reducing the fetus.
The technical scheme for solving the technical problems is as follows:
the puncture needle comprises a handle, a needle tube, a connecting tube, a negative pressure suction head and a killing device, wherein the handle is hollow, the needle tube is fixed at the upper end of the handle, the connecting tube is fixed at the lower end of the handle, one end of the connecting tube, which is far away from the handle, is fixedly connected with the negative pressure suction head, and the needle tube, the handle, the connecting tube and the negative pressure suction head are sequentially communicated; one side of the handle is provided with a branch pipe which is communicated with the handle; the killing device comprises a steel wire and a shaft sleeve, the shaft sleeve is arranged at one end of the branch pipe far away from the handle in a sliding manner, the steel wire penetrates through the shaft sleeve and the branch pipe and extends to the pipe orifice of the needle tube, and a rotary handle is arranged at one end of the steel wire, which is located outside the shaft sleeve.
The beneficial effects of the utility model are as follows: when the pregnant woman is subjected to the fetal reduction operation, firstly, a needle tube of the double-cavity needle is inserted into the heart of an embryo, and if the needle tube is just inserted into the heart, a negative pressure suction head on the double-cavity needle is started to draw out the heart; if the needle tube is not inserted into the embryo heart, the shaft sleeve is slid into the branch tube, so that the steel wire extends out of the needle tube, then the rotary handle is twisted to enable the steel wire to rotate outside the needle tube, the embryo is killed, the length of the steel wire extending out of the needle tube is controlled according to different embryo sizes, a good killing effect is achieved, and finally the negative pressure suction head is opened to suck out the killed embryo; the adjustable type killing device can better kill embryos with different sizes, and has higher killing efficiency compared with a fixed rotary type in the prior art.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, one end of the shaft sleeve, which is positioned in the branch pipe, is fixedly provided with a rubber ring, an annular groove is formed in the rubber ring, a lantern ring is rotationally arranged in the annular groove, and the lantern ring is fixedly sleeved on the steel wire.
Further, one end of the steel wire, which is positioned at the pipe orifice of the needle tube, is of a spiral structure, and the outer diameter of the spiral structure of the steel wire is smaller than the inner diameter of the needle tube.
Further, the steel wire is provided with a sharp mouth at the head end of the spiral structure.
Further, the branch pipe and one end of the shaft sleeve, which is far away from the handle, are both provided with limiting rings.
Further, the handle and the connecting pipe are both made of transparent plastic materials.
Further, the infusion tube is arranged at one side of the branch tube, the infusion tube is communicated with the branch tube, and a sealing plug is arranged at the tail end of the infusion tube.
Drawings
FIG. 1 is a schematic view of a puncture needle for puncture with reduced puncture length according to the present utility model;
FIG. 2 is a cross-sectional view of the handle of a puncture needle for reducing a tire according to the present utility model;
FIG. 3 is an enlarged view of the portion A of the puncture needle for puncture of a puncture tire according to the present utility model;
fig. 4 is a schematic view showing a spiral structure of a steel wire of a puncture needle for a puncture tire according to the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. the infusion tube comprises a handle, 11, a branch pipe, 2, a needle tube, 3, a connecting pipe, 4, a negative pressure suction head, 5, a twisting device, 51, a steel wire, 511, a lantern ring, 512, a rotary handle, 513, a sharp mouth, 52, a shaft sleeve, 521, a rubber ring, 6 and an infusion tube.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in figures 1 to 4 of the drawings, the embodiment 1 of the utility model relates to a puncture needle for reducing the fetus, comprises a handle 1, a needle tube 2, a connecting tube 3, a negative pressure suction head 4 and a wringing device 5, wherein the interior of the handle 1 is hollow, the upper end of the handle 1 is fixed with the needle tube 2, a connecting pipe 3 is fixed at the lower end of the handle 1, one end of the connecting pipe 3 far away from the handle 1 is fixedly connected with a negative pressure suction head 4, and the needle tube 2, the handle 1, the connecting pipe 3 and the negative pressure suction head 4 are sequentially communicated; one side of the handle 1 is provided with a branch pipe 11, and the branch pipe 11 is communicated with the handle 1; the killing means 5 comprises a steel wire 51 and a shaft sleeve 52, the shaft sleeve 52 is slidably arranged at one end of the branch pipe 11 far away from the handle 1, the steel wire 51 penetrates through the shaft sleeve 52, the branch pipe 11 and extends to the pipe orifice of the needle tube 2, and a rotary handle 512 is arranged at one end of the steel wire 51 located outside the shaft sleeve 52.
When the pregnant woman is subjected to the fetal reduction operation, firstly, the needle tube 2 of the double-cavity needle is inserted into the heart of an embryo, and if the needle tube 2 is just inserted into the heart, the negative pressure suction head 4 on the double-cavity needle is started to withdraw the heart; if the needle tube 2 is not inserted into the embryo heart, the shaft sleeve 52 is slid into the branch tube 11, the steel wire 51 extends out of the needle tube 2, then the rotary handle 512 is twisted to enable the steel wire 51 to rotate outside the needle tube 2, the embryo is killed, the length of the steel wire 51 extending out of the needle tube 2 is controlled according to different embryo sizes so as to achieve good killing effect, and finally the negative pressure suction head 4 is opened to suck out the killed embryo; the adjustable device 5 can better kill embryos of different sizes, and has higher killing efficiency compared with the fixed rotation type in the prior art.
In the puncture needle for reducing a tire according to embodiment 2 of the present utility model, on the basis of embodiment 1, a rubber ring 521 is fixedly provided at one end of the sleeve 52 located in the branch pipe 11, a ring groove is provided in the rubber ring 521, a collar 511 is rotatably provided in the ring groove, and the collar 511 is fixedly sleeved on the steel wire 51. The rubber ring 521 can be attached to the inner wall of the branch pipe 11 to prevent the sleeve 52 from easily sliding off the branch pipe 11; and the ring grooves in the branch pipe 11 and the collars 511 on the steel wires 51 cooperate to prevent displacement between the steel wires 51 and the shaft sleeves 52 in the extending direction of the branch pipe 11 without interfering with rotation of the steel wires 51.
In the puncture needle for reducing a tire according to embodiment 3 of the present utility model, on the basis of embodiment 1, one end of the steel wire 51 located at the nozzle of the needle tube is in a spiral structure, and the outer diameter of the spiral structure of the steel wire 51 is smaller than the inner diameter of the needle tube 2. The steel wire 51 with the spiral structure can more easily grind the embryo structure, so that the subsequent suction of the negative pressure suction head 4 is facilitated.
In the puncture needle for puncture of embodiment 4 of the present utility model, on the basis of embodiment 3, the steel wire 51 is provided with a sharp tip 513 at the head end of the spiral structure. The sharp mouth 513 on the spiral structure of the steel wire 51 can hook and break the embryo at the moment that the steel wire 51 contacts the embryo, so that the subsequent killing is facilitated.
In the puncture needle for reducing a tire according to embodiment 5 of the present utility model, on the basis of embodiment 1, a stop collar is provided at each of the branch pipe 11 and the shaft sleeve 52 at the end far from the handle 1. The limiting rings on the branch pipes 11 facilitate the doctor to hold the branch pipe 11 to adjust the length of the shaft sleeve 52 extending into the branch pipe 11; the stop collar on the sleeve 52 prevents the sleeve 52 from extending completely into the manifold 11, which is inconvenient for subsequent adjustment.
In the puncture needle for reducing a tire according to embodiment 6 of the present utility model, on the basis of embodiment 1, both the handle 1 and the connecting tube 3 are made of transparent plastic materials. The handle 1 and the connecting pipe 3 which are made of transparent plastic are beneficial for doctors to observe the sucked embryo condition.
The utility model provides a puncture needle for reducing a tire, which is based on any one of embodiments 1 to 6 and further comprises an infusion tube 6, wherein one side of a branch tube 11 is provided with the infusion tube 6, the infusion tube 6 is communicated with the branch tube 11, and the tail end of the infusion tube 6 is provided with a sealing plug. The doctor can inject the potassium chloride solution into the puncture needle for fetal reduction through the infusion tube 6, so that the embryo heart is suddenly stopped, the puncture needle can be used when the negative pressure suction head 4 cannot suck large-volume embryo fragments, and the infusion tube 6 has a simple structure and is convenient for the doctor to operate.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. The utility model provides a subtract child pjncture needle, its characterized in that includes handle (1), needle tubing (2), connecting pipe (3), negative pressure suction head (4) and winching device (5), the inside cavity of handle (1), handle (1) upper end is fixed with needle tubing (2), handle (1) lower extreme is fixed with connecting pipe (3), connecting pipe (3) keep away from handle (1) one end with negative pressure suction head (4) fixed connection, needle tubing (2), handle (1), connecting pipe (3) and negative pressure suction head (4) switch on in proper order; a branch pipe (11) is arranged on one side of the handle (1), and the branch pipe (11) is communicated with the handle (1); the killing device (5) comprises a steel wire (51) and a shaft sleeve (52), the shaft sleeve (52) is arranged at one end, far away from the handle (1), of the branch pipe (11), the steel wire (51) penetrates through the shaft sleeve (52) and the branch pipe (11) and extends to the pipe opening of the needle tube (2), and a rotary handle (512) is arranged at one end, located outside the shaft sleeve (52), of the steel wire (51).
2. A puncture needle for puncture of a tire reduction according to claim 1, characterized in that a rubber ring (521) is fixedly arranged at one end of the shaft sleeve (52) positioned in the branch pipe (11), a ring groove is arranged in the rubber ring (521), a collar (511) is rotatably arranged in the ring groove, and the collar (511) is fixedly sleeved on the steel wire (51).
3. A puncture needle for puncture of a tire according to claim 1, characterized in that the end of the steel wire (51) at the nozzle of the needle tube is in a spiral structure, and the outer diameter of the spiral structure of the steel wire (51) is smaller than the inner diameter of the needle tube (2).
4. A method according to claim 3 a puncture needle for reducing the puncture time of a tyre, it is characterized in that the method comprises the steps of, the steel wire (51) is provided with a sharp mouth (513) at the head end of the spiral structure.
5. A puncture needle for puncture of a puncture-reduced tire according to claim 1, characterized in that the branch pipe (11) and the end of the shaft sleeve (52) remote from the handle (1) are provided with stop rings.
6. A puncture needle for puncture of a puncture tyre according to claim 1, characterized in that the handle (1) and the connecting tube (3) are both of transparent plastic material.
7. According to any one of claims 1 to 6 the puncture needle for reducing the fetus comprises a needle body, it is characterized in that the utility model also comprises a transfusion tube (6), one side of the branch pipe (11) is provided with the infusion pipe (6), the infusion pipe (6) is communicated with the branch pipe (11), and the tail end of the infusion pipe (6) is provided with a sealing plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222385154.XU CN219720824U (en) | 2022-09-06 | 2022-09-06 | Puncture needle for reducing fetus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222385154.XU CN219720824U (en) | 2022-09-06 | 2022-09-06 | Puncture needle for reducing fetus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219720824U true CN219720824U (en) | 2023-09-22 |
Family
ID=88057437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222385154.XU Active CN219720824U (en) | 2022-09-06 | 2022-09-06 | Puncture needle for reducing fetus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219720824U (en) |
-
2022
- 2022-09-06 CN CN202222385154.XU patent/CN219720824U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |