CN115702956A - Drainage structure of drainage catheter and drainage catheter - Google Patents
Drainage structure of drainage catheter and drainage catheter Download PDFInfo
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- CN115702956A CN115702956A CN202110897443.5A CN202110897443A CN115702956A CN 115702956 A CN115702956 A CN 115702956A CN 202110897443 A CN202110897443 A CN 202110897443A CN 115702956 A CN115702956 A CN 115702956A
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- drainage
- drainage catheter
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- catheter
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Abstract
本发明涉及穿刺设备技术领域，特别地涉及一种引流导管的引流结构及引流导管，该引流导管的引流结构包括引流导管，以及设于引流导管出针端的多个引流孔；多个引流孔沿引流导管的轴线方向分布并且非共线设置。根据本发明提供的技术方案，多个引流孔在引流导管上分散设置，例如采用螺旋设置的形式，与现有的设置在同一直线的形式相比，本发明技术方案的引流孔设置在引流导管的更多位置，使用时，即便部分引流孔堵塞，其他位置的引流孔仍可继续引流，进而有助于改善引流导管堵塞的问题。
The present invention relates to the technical field of puncture equipment, in particular to a drainage structure of a drainage catheter and a drainage catheter. The axial direction of the drainage catheter is distributed and non-collinear. According to the technical solution provided by the present invention, a plurality of drainage holes are dispersedly arranged on the drainage catheter, for example, in the form of a spiral arrangement. Even if some of the drainage holes are blocked, the drainage holes at other locations can still continue to drain during use, which helps to improve the problem of drainage catheter blockage.
Description
Technical Field
The invention relates to the technical field of puncture equipment, in particular to a drainage structure of a drainage catheter and the drainage catheter.
Background
The drainage catheter belongs to surgical operation equipment, and can be used for drainage of body fluid, operation residual liquor and bile in human body cavity so as to attain the goal of diagnosis and treatment. At present, the drainage catheter has the advantages of convenient operation, safety, small wound, few complications and the like, so the drainage catheter is widely applied to clinical use.
The front end of the drainage catheter is provided with drainage holes, and as the existing drainage holes are arranged along the axis direction of the drainage catheter, once the blockage phenomenon occurs, all the drainage holes on the same straight line are blocked completely. Therefore, in order to keep the drainage catheter in an open state, the drainage catheter is usually flushed regularly, which is time-consuming and labor-consuming.
Disclosure of Invention
The invention provides a drainage structure of a drainage catheter and the drainage catheter, wherein drainage holes are dispersedly arranged on the drainage catheter, if a plurality of drainage holes are spirally distributed, when the drainage structure is used, even if the drainage hole at one position is blocked, the drainage holes at other different positions can continue to conduct drainage, and the problem of blockage of the drainage catheter is effectively solved.
In one aspect of the invention, a drainage structure of a drainage catheter is provided, which comprises a drainage catheter and a plurality of drainage holes arranged at a needle outlet end of the drainage catheter; the drainage holes (12) are distributed along the axial direction of the drainage catheter (1) and are arranged in a non-collinear way.
Optionally, the plurality of drainage apertures are helically distributed on the drainage catheter.
Optionally, a catheter port is arranged at the needle outlet end of the drainage catheter, and a plurality of drainage holes are formed in the drainage catheter within a specified range from the catheter port.
In another aspect of the invention, a drainage catheter is also provided, which comprises a joint and a drainage structure comprising the drainage catheter; wherein, the needle inlet end of the drainage catheter is connected with the joint.
Optionally, the joint is a tee comprising a first channel, a second channel, and a third channel; the first channel is connected with the needle inserting end of the drainage catheter, the second channel is positioned on an extension line of the drainage catheter and the first channel, and an included angle is formed between the third channel and the second channel and is an acute angle.
Optionally, an outer needle assembly and an inner needle assembly are also included; the outer needle assembly comprises a hollow tubular outer needle and an outer needle seat, and the outer needle is used for penetrating into the drainage catheter through the second channel; the inner needle assembly comprises an inner needle and an inner needle seat, the inner needle is used for penetrating in the outer needle, and the length of the inner needle is larger than that of the drainage catheter and the outer needle.
Optionally, the needle tip of the outer needle is located within the drainage catheter and the needle tip of the inner needle is a specified distance from the needle-out end of the drainage catheter.
Optionally, the outer needle is a metal flat-headed needle.
Optionally, the outer needle assembly further comprises an outer needle nut fixedly connected with the outer needle base and threadedly connected with the outer wall of the second channel.
Optionally, the inner needle assembly further comprises an inner needle nut fixedly connected with the inner needle base and in threaded connection with the outer wall of the outer needle base.
According to the technical scheme provided by the invention, the drainage holes are dispersedly arranged on the drainage catheter, for example, the spiral arrangement mode is adopted, compared with the existing mode of arranging the drainage holes on the same straight line, the drainage holes in the technical scheme are arranged at more positions of the drainage catheter, and when the drainage catheter is used, even if part of the drainage holes are blocked, the drainage holes at other positions can still conduct drainage, so that the problem of blockage of the drainage catheter is effectively solved.
Drawings
For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, wherein:
FIG. 1 is a schematic structural view of a drainage structure of a drainage catheter provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a drainage catheter according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a drainage catheter provided in accordance with an embodiment of the invention.
In the figure:
1: a drainage catheter; 2: a tee fitting; 3: an outer needle assembly; 4: an inner needle assembly;
11: a catheter port; 12: a drainage hole;
21: a first channel; 22: a second channel; 23: a third channel;
31: an outer needle; 32: an outer needle base; 33: an outer needle nut;
41: an inner needle; 42: an inner needle base; 43: an inner needle nut.
Detailed Description
The present application will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present application. For the sake of brevity, the same or similar reference numerals are used for the same or similar apparatus/method steps in the description of the various embodiments of the present application.
In addition, the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Fig. 1 is a schematic structural view of a drainage structure of a drainage catheter according to an embodiment of the present invention. As shown in fig. 1, the drainage structure of the drainage catheter 1 comprises a drainage catheter 1 and a plurality of drainage holes 12 arranged at the needle outlet end of the drainage catheter 1; the plurality of drainage holes 12 are arranged on different circumferences, and the plurality of drainage holes 12 are arranged non-collinearly along the axial direction of the drainage catheter 1. Preferably, the plurality of drainage apertures 12 are distributed helically on the drainage catheter 1.
As shown in fig. 1, a plurality of drainage holes 12 are distributed on the drainage catheter 1, compared with the prior art in which the drainage holes 12 are distributed on the same straight line, in the embodiment of the invention, the drainage holes 12 are arranged at more positions of the drainage catheter 1, and during drainage operation, the needle outlet end of the drainage catheter 1 can be completely used for drainage, and even if the drainage holes 12 in one position or partial positions are blocked, the drainage holes 12 in other positions can continue to drain. This avoids the need to use only a single direction drainage mode, which in turn helps to ameliorate the problem of blockage of the drainage catheter 1.
In the embodiment of the invention, the needle outlet end of the drainage catheter 1 is provided with a catheter port 11, and a plurality of drainage holes 12 are arranged on the drainage catheter 1 within a specified range from the catheter port 11. When the drainage catheter 1 is used, the part close to the catheter port 11 is used for drainage operation, and when the drainage catheter 1 needs to be positioned (is prevented from being pulled out), the needle outlet end of the drainage catheter 1 needs to be set to be in a convoluted 'pigtail shape'. It can be seen that in order to ensure that the fluid drained by the drainage catheter 1 does not flow out, the drainage holes 12 need to be set within a predetermined range.
FIG. 2 is a schematic view of a drainage catheter according to an embodiment of the present invention; fig. 3 is a cross-sectional view of a drainage catheter provided in accordance with an embodiment of the present invention. As shown in fig. 2 and 3, the drainage catheter 1 comprises a joint, and a drainage structure of the drainage catheter 1; wherein, the needle inlet end of the drainage catheter 1 is connected with the joint. When the drainage catheter 1 is used, operations such as pulling a wire and sucking are performed at one end of the joint.
The joint in the embodiment of the present invention is a three-way component 2, as shown in fig. 2 and 3, the three-way component 2 includes a first channel 21, a second channel 22, and a third channel 23; the first channel 21 is connected with the needle inserting end of the drainage catheter 1, the second channel 22 is positioned on the extension line of the drainage catheter 1 and the first channel 21, and an included angle is formed between the third channel 23 and the second channel 22 and is an acute angle. When the connector adopts the three-way component 2, the leading-out end of the guide wire can be separated from the liquid suction end, namely the guide wire penetrates out of the third channel 23, suction operation is carried out on the second channel 22, the cutting guide wire operation and the suction operation are not influenced mutually by arranging the third channel 23, and the convenience and the safety of the drainage operation are further improved.
As shown in fig. 2 and 3, the drainage catheter 1 further includes an outer needle assembly 3 and an inner needle assembly 4; the outer needle assembly 3 comprises a hollow tubular outer needle 31 and an outer needle seat 32, the outer needle 31 is used for penetrating into the drainage catheter 1 through the second channel 22; the inner needle assembly 4 comprises an inner needle 41 and an inner needle seat 42, the inner needle 41 is a solid needle, the inner needle 41 is used for penetrating into the outer needle 31, and the length of the inner needle 41 is larger than that of the drainage catheter 1 and the outer needle 31. When the drainage catheter 1 is used, a target part can be punctured in a puncturing mode, in the embodiment of the invention, corresponding puncturing operation can be finished by arranging the inner needle assembly 3 and the outer needle assembly 3, namely, when the drainage catheter 1 is used, a human body is punctured by using the inner needle 31 and the outer needle 31, the drainage catheter 1 penetrates into the human body along with the inner needle 31 and the outer needle 31, and then the inner needle 41 is pulled out or the inner needle 31 and the outer needle 31 are pulled out to establish a drainage channel.
In the present embodiment, the drainage catheter 1 is made of a flexible material, such as rubber, which has a certain deformability, and the inner needle 41 and the outer needle 31 are made of metal. When the drainage catheter is used, in order to avoid the inner needle 41 and the outer needle 31, particularly the inner needle 41 from puncturing the drainage catheter 1, the outer needle 31 is firstly set to be a flat-head needle, when the outer needle 31 penetrates into the drainage catheter 1, the outer needle 31 is not provided with a sharp structure and cannot puncture the drainage catheter 1, after penetrating into the outer needle 31, namely a metal channel is built in the drainage catheter 1, and the inner needle 41 can not puncture flexible materials after penetrating into the outer needle 31. Wherein, the needlepoint of the outer needle 31 is positioned in the drainage catheter 1, the needlepoint of the inner needle 41 has a designated distance from the needle outlet end of the drainage catheter 1, the needlepoint of the inner needle 41 penetrates out of the outer needle 31 and the drainage catheter 1, and the part is used for puncturing the skin of the human body.
In the embodiment of the present invention, as shown in fig. 2 and 3, the outer needle assembly 3 further includes an outer needle nut 33, and the outer needle nut 33 is fixedly connected to the outer needle holder 32 and is threadedly connected to the outer wall of the second channel 22. The inner needle assembly 4 further comprises an inner needle nut 43, the inner needle nut 43 being fixedly connected to the inner needle holder 42 and being threadedly connected to the outer wall of the outer needle holder 32. After the inner needle assembly 4 and the outer needle assembly 3 complete corresponding puncture operations, the structures are in a stable state by fixing the outer needle nut 33 and the inner needle nut 43.
In the embodiment of the invention, one use mode is as follows: the drainage catheter 1 and the tee joint piece 2 are penetrated into a target part according to a guide wire which is penetrated in advance, then the guide wire is pulled, one end, located at the target part, of the drainage catheter 1 is contracted to be in a pigtail shape, and then the drainage catheter 1 is fixed to establish a channel.
The other using mode is as follows: the outer needle 31 and the inner needle 41 are inserted into the drainage catheter 1, a target site is penetrated by the needlepoint of the inner needle 41, and then a passage is rapidly established after the inner needle 41 or the inner needle 41 and the outer needle 31 are withdrawn.
In the embodiment of the invention, the drainage holes 12 on the drainage catheter 1 are dispersedly arranged on the drainage catheter 1, for example, the drainage holes 12 are arranged in a spiral manner, compared with the existing manner that the drainage holes 12 are arranged in the same straight line, the drainage holes 12 in more positions of the drainage catheter 1 can continue to drain even if part of the drainage holes 12 are blocked when the drainage catheter is used, and the problem of blockage of the drainage catheter 1 is further improved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may 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 (10)
1. A drainage structure of a drainage catheter is characterized by comprising a drainage catheter (1) and a plurality of drainage holes (12) arranged at the needle outlet end of the drainage catheter (1);
the drainage holes (12) are distributed along the axial direction of the drainage catheter (1) and are arranged in a non-collinear way.
2. The drainage structure of a drainage catheter according to claim 1, characterized in that a plurality of drainage holes (12) are spirally distributed on the drainage catheter (1).
3. The drainage structure of a drainage catheter according to claim 1 or 2, wherein the needle-out end of the drainage catheter (1) is provided with a catheter port (11), and a plurality of drainage holes (12) are provided in the drainage catheter (1) within a prescribed distance from the catheter port (11).
4. A drainage catheter comprising a fitting and a drainage structure comprising the drainage catheter of any of claims 1 to 3;
wherein the needle inlet end of the drainage catheter (1) is connected with the joint.
5. The drainage catheter according to claim 4, characterized in that the joint is a tee (2) comprising a first channel (21), a second channel (22) and a third channel (23);
the first channel (21) is connected with the needle inserting end of the drainage catheter (1), the second channel (22) is located on the extension line of the drainage catheter (1) and the first channel (21), and an included angle is formed between the third channel (23) and the second channel (22) and is an acute angle.
6. The drainage catheter of claim 5, further comprising an outer needle assembly (3) and an inner needle assembly (4);
the outer needle assembly (3) comprises a hollow tubular outer needle (31) and an outer needle seat (32), and the outer needle (31) is used for penetrating into the drainage catheter (1) through the second channel (22);
the inner needle assembly (4) comprises an inner needle (41) and an inner needle seat (42), the inner needle (41) is used for penetrating into the outer needle (31), and the length of the inner needle (41) is larger than that of the drainage catheter (1) and the outer needle (31).
7. The drainage catheter according to claim 6, characterized in that the tip of the outer needle (31) is located inside the drainage catheter (1) and the tip of the inner needle (41) is at a given distance from the needle outlet end of the drainage catheter (1).
8. The drainage catheter according to claim 7, characterized in that the outer needle (31) is a metal flat-headed needle.
9. The drainage catheter according to any of the claims 6 to 8, characterized in that the outer needle assembly (3) further comprises an outer needle nut (33), the outer needle nut (33) being fixedly connected with the outer needle hub (32) and being in threaded connection with the outer wall of the second channel (22).
10. The drainage catheter of claim 9, wherein the inner needle assembly (4) further comprises an inner needle nut (43), the inner needle nut (43) being fixedly connected to the inner needle hub (42) and being threadedly connected to the outer wall of the outer needle hub (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110897443.5A CN115702956A (en) | 2021-08-05 | 2021-08-05 | Drainage structure of drainage catheter and drainage catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110897443.5A CN115702956A (en) | 2021-08-05 | 2021-08-05 | Drainage structure of drainage catheter and drainage catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115702956A true CN115702956A (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110897443.5A Pending CN115702956A (en) | 2021-08-05 | 2021-08-05 | Drainage structure of drainage catheter and drainage catheter |
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| Country | Link |
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| CN (1) | CN115702956A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203885990U (en) * | 2014-04-09 | 2014-10-22 | 中国人民解放军第二军医大学 | Thoracocentesis drainage tube with air bag |
| CN204158866U (en) * | 2014-10-22 | 2015-02-18 | 深圳市库珀科技发展有限公司 | A kind of puncture sclerosis drainage system |
| CN204352364U (en) * | 2014-11-25 | 2015-05-27 | 袁远 | A kind of postoperative cerebral epidural hematoma drainage system |
| CN109675172A (en) * | 2019-02-19 | 2019-04-26 | 苏州市立普医疗科技有限公司 | A kind of drainage catheter |
| CN210020518U (en) * | 2019-01-29 | 2020-02-07 | 湾资医疗设备（上海）有限公司 | Anti-clogging drainage tube |
| CN216022347U (en) * | 2021-08-05 | 2022-03-15 | 苏州市立普医疗科技有限公司 | Drainage structure of a drainage catheter and drainage catheter |
-
2021
- 2021-08-05 CN CN202110897443.5A patent/CN115702956A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203885990U (en) * | 2014-04-09 | 2014-10-22 | 中国人民解放军第二军医大学 | Thoracocentesis drainage tube with air bag |
| CN204158866U (en) * | 2014-10-22 | 2015-02-18 | 深圳市库珀科技发展有限公司 | A kind of puncture sclerosis drainage system |
| CN204352364U (en) * | 2014-11-25 | 2015-05-27 | 袁远 | A kind of postoperative cerebral epidural hematoma drainage system |
| CN210020518U (en) * | 2019-01-29 | 2020-02-07 | 湾资医疗设备（上海）有限公司 | Anti-clogging drainage tube |
| CN109675172A (en) * | 2019-02-19 | 2019-04-26 | 苏州市立普医疗科技有限公司 | A kind of drainage catheter |
| CN216022347U (en) * | 2021-08-05 | 2022-03-15 | 苏州市立普医疗科技有限公司 | Drainage structure of a drainage catheter and drainage catheter |
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Effective date of registration: 20250416 Address after: No. 169, Changle West Road, Xi'an, Shaanxi 710000 Applicant after: Air Force Medical University Country or region after: China Address before: 215104 Building 2, 38 beiguandu Road, Yuexi street, Wuzhong Economic Development Zone, Wuzhong District, Suzhou City, Jiangsu Province Applicant before: LEAPMED MEDICAL TECHNOLOGY Co.,Ltd. Country or region before: China |
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