CN219646517U - Quick positioning disposable drainage catheter and accessory - Google Patents
Quick positioning disposable drainage catheter and accessory Download PDFInfo
- Publication number
- CN219646517U CN219646517U CN202223376655.8U CN202223376655U CN219646517U CN 219646517 U CN219646517 U CN 219646517U CN 202223376655 U CN202223376655 U CN 202223376655U CN 219646517 U CN219646517 U CN 219646517U
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- China
- Prior art keywords
- joint
- catheter
- needle tube
- tube
- puncture needle
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- 238000007789 sealing Methods 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 210000001124 body fluid Anatomy 0.000 abstract description 18
- 239000010839 body fluid Substances 0.000 abstract description 18
- 210000000056 organ Anatomy 0.000 abstract description 4
- 201000010099 disease Diseases 0.000 description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 210000001835 viscera Anatomy 0.000 description 2
- 206010014568 Empyema Diseases 0.000 description 1
- 206010024652 Liver abscess Diseases 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 210000003567 ascitic fluid Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002757 inflammatory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- 206010034674 peritonitis Diseases 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
- External Artificial Organs (AREA)
Abstract
A quick positioning disposable drainage catheter and accessories are sleeved in a catheter body, a puncture needle tube in interference fit with the catheter body is sleeved between the puncture needle tube and the catheter body, a hard support tube is sleeved between the puncture needle tube and the catheter body, the front end of the hard support tube is supported on a step in the catheter body, the flexible catheter body support is stretched to be in a straight tube state, and powerful puncture support is provided for the catheter body in the catheter body, so that under the action of the puncture needle tube at the front end, the drainage catheter is held to directly puncture the catheter into a shallow body cavity or a focus of a smaller-sized organ, and after the puncture needle tube and the hard support tube are pulled out, small-flow and short-time body fluid drainage can be carried out; the internal channel of puncture needle tube can circulate the body fluid, and after the puncture needle tube enters into the internal, inside pressure can make the body fluid flow from the rear end of needle tube, judges whether puncture focus department according to the colour of outflow body fluid, can accurate quick judgement whether puncture is put in place according to the body fluid colour.
Description
Technical Field
The utility model relates to the field of drainage catheters, in particular to a quick positioning disposable drainage catheter and an accessory.
Background
At present, when diseases such as body cavity, tissue and parenchymal viscera with accumulated inflammatory body fluid, abscess or necrotic tissue infection are clinically treated, a puncture drainage tube is generally required to be used for puncture, catheterization and drainage. The current puncture drainage tube mainly comprises a guide needle, a guide wire and an indwelling catheter, and the steps of performing puncture catheter placement are as follows: firstly, puncturing the guide needle into a drainage part in the body; secondly, introducing the guide wire into the body through the guide needle, and drawing out the guide needle after the guide wire is in place, so that only the guide wire is left; thirdly, the indwelling catheter is guided into the body from the guide wire, and the guide wire is withdrawn after the indwelling catheter is in place, and the indwelling catheter is left for drainage.
The existing drainage mode has a complex operation process and high technical requirements on doctors, and is mainly used for drainage of deep body cavities or large-size organ diseases such as liver abscess, peritoneal fluid seepage, empyema, peritoneal wrapped effusion caused by postoperative peritoneal infection, and the like, and the drainage amount of the diseases on body fluid is large and the drainage time is long; when the drainage of the diseases of the shallower body cavity or the viscera with smaller size is carried out, the drainage quantity of body fluid is small, the drainage time is short, the treatment of the diseases is relatively simple, the adoption of the drainage operation mode is unfavorable for shortening the treatment time, saving the treatment cost and reducing the pain degree of patients, and therefore, a drainage device capable of rapidly positioning and drainage is necessary to be designed.
Disclosure of Invention
In order to solve the problems, the utility model provides a quick positioning disposable drainage catheter and an accessory.
The technical scheme of the utility model is as follows: a quick positioning disposable drainage catheter comprises a catheter body, a puncture needle tube and a hard supporting tube, wherein a plurality of drainage holes are formed in the front end of the catheter body along the direction of a generatrix;
the inside of the catheter body is provided with a main channel and a front end channel which are mutually communicated, and the diameter of the front end channel is smaller than that of the main channel, so that a limit step is formed at the joint of the main channel and the front end channel; the hard support tube is sleeved in the catheter body, the front end face of the hard support tube is propped against the step, the puncture needle tube is sleeved in the hard support tube, the front end of the puncture needle tube extends out of the catheter body from the front end channel, and the puncture needle tube and the front end channel are in interference fit.
Preferably, the front end of the catheter body is provided with a conical head, and the port of the conical head is provided with a transition fillet.
Preferably, the hard support tube is made of stainless steel.
An accessory for rapidly positioning a disposable drainage catheter comprises a catheter connector, a support pipe connector, a needle tube connector and a sealing cap;
the catheter joint is connected to the rear end of the catheter body, the rear end of the hard support tube extends out of the catheter joint, the support tube joint is connected to the extending part of the hard support tube, and the support tube joint is connected with the catheter joint; the rear end of the puncture needle tube extends out of the support tube joint, the needle tube joint is connected to the extending part of the puncture needle tube, and the needle tube joint is connected with the support tube joint; the sealing cap is connected to the outer end of the needle tube joint.
Preferably, the conduit joint and the support tube joint are in threaded connection, the support tube joint and the needle tube joint are in threaded connection, and the needle tube joint and the sealing cap are in threaded connection.
Preferably, a reinforcing sleeve is sleeved between the catheter body and the catheter connector.
Preferably, the joint of the conduit joint and the conduit body is provided with a conical groove, the conical groove is internally provided with glue for fixedly connecting the conduit body and the conduit joint, the joint of the support pipe joint and the hard support pipe is provided with a conical groove, and the conical groove is internally provided with glue for fixedly connecting the support pipe joint and the hard support pipe.
The beneficial technical effects of the utility model are as follows:
(1) The catheter body is internally sleeved with the puncture needle tube in interference fit with the puncture needle tube, the hard support tube is sleeved between the puncture needle tube and the catheter body, the front end of the hard support tube is supported on a step in the catheter body, the flexible catheter body support is stretched into a straight tube state, and the powerful puncture support is provided for the catheter body in the catheter body, so that under the action of the front end puncture needle tube, the drainage catheter is held to directly puncture the drainage catheter into a shallow body cavity or a focus of a smaller-size organ, and after the puncture needle tube and the hard support tube are pulled out, the drainage catheter can conduct small-flow and short-time body fluid drainage.
(2) The internal channel of the puncture needle tube can circulate body fluid, after the puncture needle tube enters the body, the internal pressure can enable the body fluid to flow out from the rear end of the puncture needle tube, whether the puncture needle tube punctures a focus (different colors of body fluid at different organs or focus of diseases) is judged according to the color of the body fluid, and whether the puncture needle tube punctures the focus can be accurately and rapidly judged according to the color of the body fluid.
(3) The support pipe joint, the needle tube joint and the catheter joint are sequentially and fixedly connected through threads, the rear ends of the catheter body, the puncture needle tube and the hard support tube are fixedly connected into a whole, the puncture is conveniently carried out by holding, and after the support pipe joint and the needle tube joint are unscrewed, the puncture needle tube and the hard support tube can be rapidly pulled out of the catheter body, and the placement of the catheter can be rapidly completed.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of the front view of the present utility model;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is an enlarged view at a of FIG. 3;
FIG. 5 is an enlarged view at b of FIG. 3;
FIG. 6 is a B-B cross-sectional view of FIG. 2;
FIG. 7 is a schematic perspective view of a catheter body of the present utility model;
FIG. 8 is a schematic perspective view of a rigid support tube of the present utility model;
fig. 9 is a schematic perspective view of a puncture needle tube according to the present utility model.
In the figure, 11, a catheter body, 111, drainage holes, 112, a main channel, 113, a front end channel, 114, a limit step, 115, a conical head, 12, a hard support tube, 13, a puncture needle tube, 14, a catheter joint, 141, a grab handle, 15, a support tube joint, 16, a needle tube joint, 17, a sealing cap, 18, a reinforcing sleeve, 21 and glue.
Description of the embodiments
Referring to fig. 1-9 of the specification, a quick positioning disposable drainage catheter comprises a catheter body, a puncture needle tube and a hard supporting tube, wherein the front end part of the catheter body is provided with a plurality of drainage holes at equal intervals along the direction of a bus, and drainage is performed through the drainage holes and the front port of the catheter body; the inside of the catheter body is provided with a main channel and a front end channel which are mutually communicated, and the diameter of the front end channel is smaller than that of the main channel, so that a limit step is formed at the joint of the main channel and the front end channel; the rigid support tube is sleeved in the catheter body, the front end face of the rigid support tube is propped against the step, so that the flexible catheter body support can be stretched into a straight tube state, the catheter body is provided with a powerful support in the straight tube shape, the catheter is held to directly puncture the catheter body into a focus in the body, the puncture needle tube is sleeved in the rigid support tube, the front end of the puncture needle tube extends out of the catheter body from the front end channel, the puncture needle tube and the front end channel are in interference fit, the interference fit is used for fixing the front end of the puncture needle tube and the front end of the catheter body tightly, the integrated puncture of the puncture needle tube and the catheter body is facilitated, and the catheter body is made of flexible plastic material with certain elasticity, and can be assembled and disassembled between the puncture needle tube and the front end channel by forced insertion and extraction.
The front end of the catheter body is provided with a conical head which is beneficial to puncture, and the port of the conical head is provided with a transition fillet which reduces puncture resistance; the hard support tube can be made of stainless steel, and a grab handle which is beneficial to operation is arranged on the catheter joint.
Referring to fig. 1-9 of the specification, an accessory for rapidly positioning a disposable drainage catheter comprises the drainage catheter of the first embodiment, a catheter connector, a support pipe connector, a needle tube connector and a sealing cap, wherein the catheter connector, the support pipe connector and the needle tube connector are hollow and have two open ends; the catheter joint is connected to the rear end of the catheter body, the rear end of the hard support tube extends out of the catheter joint, the support tube joint is connected to the extending part of the hard support tube, and the support tube joint is connected with the catheter joint; the rear end of the puncture needle tube extends out of the support tube joint, the needle tube joint is connected to the extending part of the puncture needle tube, and the needle tube joint is connected with the support tube joint; the sealing cap is connected to the outer end of the needle tube joint, and is used for sealing the rear end of the puncture needle tube in the puncture process, and the sealing cap is opened after the puncture needle tube enters the body to observe the flowing body fluid so as to judge whether the focus is accurately punctured.
The pipe joint and the supporting pipe joint are connected by screw threads, the supporting pipe joint and the needle tube joint are connected by screw threads, the needle tube joint and the sealing cap are connected by screw threads, and the connection mode of screw threads is convenient for the butt joint and the disassembly of the joints; a reinforcing sleeve is sleeved between the catheter body and the catheter connector, and the reinforcing sleeve is used for enhancing the firmness of connection between the catheter body and the catheter body connector.
The joint of the conduit joint and the conduit body is provided with a conical groove, the conical groove is internally provided with glue for fixedly connecting the conduit body and the conduit joint, the joint of the support pipe joint and the hard support pipe is provided with a conical groove, and the conical groove is internally provided with glue for fixedly connecting the support pipe joint and the hard support pipe
The working process and principle of the embodiment are as follows:
(1) Holding the catheter body, and puncturing the catheter body to a focus in a patient through a puncture needle tube at the front end of the catheter body, wherein the front end of the hard support tube is supported on a step in the catheter body in the puncturing process, and powerful puncture support is provided for the catheter body in the catheter body, so that the puncturing effect is not influenced by bending of the catheter body;
(2) When the puncture needle tube reaches the vicinity of the focus, a sealing cap at the rear end of the puncture needle tube is opened, body fluid in the puncture needle tube flows out from the rear end of the puncture needle tube, and whether the catheter accurately punctures the focus is judged according to the color of the flowing body fluid;
(3) After judging that the catheter body punctures the focus, screwing the needle tube joint, separating the catheter body from the support tube joint, extracting the puncture needle tube, screwing the support tube joint, separating the catheter body from the catheter joint, extracting the hard support tube, and only leaving the catheter body in the patient;
(4) The catheter joint is connected with the drainage tube joint of the drainage bag to drain the body fluid at the focus in the patient.
Claims (7)
1. A quick positioning disposable drainage catheter, which is characterized in that:
comprises a catheter body, a puncture needle tube and a hard supporting tube, wherein the front end part of the catheter body is provided with a plurality of drainage holes along the direction of a generatrix;
the inside of the catheter body is provided with a main channel and a front end channel which are mutually communicated, and the diameter of the front end channel is smaller than that of the main channel, so that a limit step is formed at the joint of the main channel and the front end channel; the hard support tube is sleeved in the catheter body, the front end face of the hard support tube is propped against the step, the puncture needle tube is sleeved in the hard support tube, the front end of the puncture needle tube extends out of the catheter body from the front end channel, and the puncture needle tube and the front end channel are in interference fit.
2. A quick positioning single use drainage catheter as defined in claim 1, wherein: the front end of the catheter body is provided with a conical head, and the port of the conical head is provided with a transition fillet.
3. A quick positioning single use drainage catheter as defined in claim 1, wherein: the hard supporting tube is made of stainless steel.
4. An accessory for rapidly positioning a disposable drainage catheter is characterized in that: comprises a conduit joint, a support pipe joint, a needle tube joint and a sealing cap;
the catheter joint is connected to the rear end of the catheter body, the rear end of the hard support tube extends out of the catheter joint, the support tube joint is connected to the extending part of the hard support tube, and the support tube joint is connected with the catheter joint; the rear end of the puncture needle tube extends out of the support tube joint, the needle tube joint is connected to the extending part of the puncture needle tube, and the needle tube joint is connected with the support tube joint; the sealing cap is connected to the outer end of the needle tube joint.
5. The rapid positioning single use drainage catheter accessory of claim 4, wherein: the catheter joint and the supporting tube joint are connected by screw threads, the supporting tube joint and the needle tube joint are connected by screw threads, and the needle tube joint and the sealing cap are connected by screw threads.
6. The rapid positioning single use drainage catheter accessory of claim 4, wherein: a reinforcing sleeve is sleeved between the catheter body and the catheter joint.
7. The rapid positioning single use drainage catheter accessory of claim 4, wherein: the joint of the conduit joint and the conduit body is provided with a conical groove, the conical groove is internally provided with glue for fixedly connecting the conduit body and the conduit joint, the joint of the support pipe joint and the hard support pipe is provided with a conical groove, and the conical groove is internally provided with glue for fixedly connecting the support pipe joint and the hard support pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223376655.8U CN219646517U (en) | 2022-12-16 | 2022-12-16 | Quick positioning disposable drainage catheter and accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223376655.8U CN219646517U (en) | 2022-12-16 | 2022-12-16 | Quick positioning disposable drainage catheter and accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219646517U true CN219646517U (en) | 2023-09-08 |
Family
ID=87859834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223376655.8U Active CN219646517U (en) | 2022-12-16 | 2022-12-16 | Quick positioning disposable drainage catheter and accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219646517U (en) |
-
2022
- 2022-12-16 CN CN202223376655.8U patent/CN219646517U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |