CN110613872A - Remaining needle auxiliary device for preventing blood coagulation and working method thereof - Google Patents
Remaining needle auxiliary device for preventing blood coagulation and working method thereof Download PDFInfo
- Publication number
- CN110613872A CN110613872A CN201911052488.1A CN201911052488A CN110613872A CN 110613872 A CN110613872 A CN 110613872A CN 201911052488 A CN201911052488 A CN 201911052488A CN 110613872 A CN110613872 A CN 110613872A
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- CN
- China
- Prior art keywords
- cavity
- inner cavity
- shell type
- indwelling needle
- hard shell
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
Abstract
The invention relates to an indwelling needle auxiliary device for preventing blood coagulation and a working method thereof, and the indwelling needle auxiliary device comprises a hard shell cavity, wherein a liquid passing hole is formed in the bottom of the hard shell cavity, a semipermeable membrane is arranged in the liquid passing hole, a liquid outlet is formed in the head of the hard shell cavity, a first non-flexible film inner cavity communicated with the liquid passing hole is formed in one side of the bottom of the hard shell cavity, the first non-flexible film inner cavity seals the periphery of the liquid outlet in the bottom of the hard shell cavity, a second non-flexible film inner cavity communicated with the liquid outlet is formed in one side of the head of the hard shell cavity, a soft shell cavity is connected to the outer side of the bottom of the hard shell cavity. The invention has simple structure and simple and convenient operation, can effectively prevent blood from coagulating, forming thrombus and other complications caused by blood backflow into the indwelling needle, can prolong the service time of the indwelling needle, saves the cost of the indwelling needle and also relieves the pain of a patient caused by frequent replacement of the indwelling needle.
Description
Technical Field
The invention relates to an indwelling needle auxiliary device for preventing blood coagulation and a working method thereof.
Background
The existing indwelling needle needs to be sealed by normal saline after the transfusion is finished in order to prevent other complications such as blood coagulation and thrombus formation caused by blood return in the using process, and the catheter sealing liquid needs to be replaced once in 8 ~ 12 hours, and once the blood is found to have the coagulation tendency, the indwelling needle needs to be replaced immediately.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an indwelling needle assisting device for preventing blood coagulation and a method of operating the same, which has a simple structure and is easy and convenient to operate, can effectively prevent other complications such as thrombus formation due to blood coagulation caused by backflow into an indwelling needle, can prolong the use time of the indwelling needle while saving the cost of the indwelling needle, and can also alleviate the pain of a patient due to frequent replacement of the indwelling needle.
The technical scheme of the invention is as follows: an indwelling needle auxiliary device for preventing blood coagulation comprises a hard shell cavity, wherein a liquid passing hole is formed in the bottom of the hard shell cavity, a semipermeable membrane is arranged in the liquid passing hole, a liquid outlet is formed in the head of the hard shell cavity, a first non-flexible film inner cavity communicated with the liquid passing hole is formed in one side of the bottom of the hard shell cavity, the first non-flexible film inner cavity seals the periphery of the liquid outlet in the bottom of the hard shell cavity, a second non-flexible film inner cavity communicated with the liquid outlet is formed in one side of the head of the hard shell cavity, a soft shell cavity is connected to the outer side of the bottom of the hard shell cavity, a third closed non-flexible film inner cavity is formed in the soft shell cavity, a high-concentration solution is filled in the first non-flexible film inner cavity, a low-concentration solution with a concentration lower than the high-concentration solution is filled in.
Furthermore, the first non-flexible film inner cavity comprises a first folding part positioned at the port, and a first cavity part is arranged at the rear end of the first folding part.
Furthermore, the second non-flexible film inner cavity comprises a second folding part positioned at the port, and a second cavity part is arranged at the rear end of the second folding part.
Furthermore, the inner cavities of the first, second and third non-tough films are all made of non-tough films.
Furthermore, the soft shell cavity is a non-toughness film capsule cavity, and the hard shell cavity is a plastic shell cavity.
Furthermore, a one-way valve for preventing external liquid from flowing backwards is arranged at the liquid outlet, and the liquid outlet end of the liquid outlet is connected with a hose of the remaining needle.
Another aspect of the present invention is a method for operating an indwelling needle assist device for preventing blood coagulation, comprising: in a normal state, the third non-tough film inner cavity is filled with a low-concentration solution with a concentration lower than that of the high-concentration solution, when the soft shell type film is used, the soft shell type cavity is lightly pressed to extrude the closed third non-tough film inner cavity, the third non-tough film inner cavity is broken, the low-concentration solution in the third non-tough film inner cavity overflows into the soft shell type cavity, the soft shell type cavity is immediately restored after being pressed, at the moment, concentration difference exists between the low-concentration solution in the soft shell type cavity and the high-concentration solution in the first non-tough film inner cavity, so that the low-concentration solution can flow into the first non-tough film inner cavity through the semipermeable membrane, in the process, the pressure in the third non-tough film inner cavity is reduced, the third non-tough film and the soft shell type cavity can be gradually flattened under the action of osmotic pressure, and the first non-tough film inner cavity can be expanded forwards along with the solution, the second non-flexible film inner cavity is extruded to enable the second non-flexible film inner cavity to move forwards gradually, the volume is reduced in the process that the second non-flexible film inner cavity moves forwards, medical tube sealing liquid in the second non-flexible film inner cavity flows out from the liquid outlet, flows into the remaining needle through the remaining needle hose, and then blood backflow is prevented from flowing back into the needle.
Compared with the prior art, the invention has the beneficial effects that: the invention has simple structure and simple and convenient operation, can effectively prevent blood from coagulating, forming thrombus and other complications caused by blood backflow into the indwelling needle, can prolong the service time of the indwelling needle, saves the cost of the indwelling needle and also relieves the pain of a patient caused by frequent replacement of the indwelling needle.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the embodiment of FIG. 1;
FIG. 3 is a front view of an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the embodiment of FIG. 3;
FIG. 5 is a partial enlarged view of FIG. 4 according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the working state of the embodiment of the present invention;
in the figure: 100-a hard shell cavity; 110-liquid passing holes; 120-a semi-permeable membrane; 130-a liquid outlet; 200-a first non-flexible film lumen; 210-a first fold; 220-a first cavity portion; 300-a second non-tough film; 310-a second fold; 320-a second cavity portion; 400-soft shell cavity; 500-a third non-tough film lumen; 600-a one-way valve; 700-indwelling needle hose; 710-an indwelling needle; 720-rubberized fabric; 730-human body; 740-stop flow clamp.
Detailed Description
As shown in FIG. 1 ~ 6, an indwelling needle assisting device for preventing blood coagulation includes a hard shell cavity 100, a liquid passing hole 110 is formed in the bottom of the hard shell cavity 100, a semipermeable membrane 120 is disposed in the liquid passing hole 110, a liquid outlet 130 is formed in the head of the hard shell cavity 100, a first non-flexible membrane inner cavity 200 communicating with the liquid passing hole 110 is formed in one side of the bottom of the hard shell cavity 100, the first non-flexible membrane inner cavity 200 seals the periphery of the liquid outlet 130 at the bottom of the hard shell cavity 100, a second non-flexible membrane 300 inner cavity communicating with the liquid outlet 130 is formed in one side of the head of the hard shell cavity 100, a soft shell cavity 400 is connected to the outer side of the bottom of the hard shell cavity 100, a third non-flexible membrane inner cavity 500 is formed in the soft shell cavity 400, a high-concentration solution is filled in the first non-flexible membrane inner cavity 200, a low-concentration solution lower than the high-concentration solution is filled in the third non-flexible membrane inner cavity 500, a medical catheter sealing liquid is filled in the second non-flexible membrane inner cavity 300, the high-concentration solution fills the first non-flexible membrane inner cavity 200 when the initial state, the third non-flexible membrane inner cavity is filled with the low-flexible membrane inner cavity, the low-concentration solution, the low-concentration medical fluid does not overflow of the medical fluid in the third non-flexible membrane inner cavity, the non-flexible membrane inner cavity, and the medical fluid inner cavity is not overflow of the non-flexible membrane cavity when the third non-flexible membrane inner cavity 500, the medical fluid cavity, the medical fluid.
In this embodiment, the first non-flexible film inner cavity 200 includes a first folded portion 210 at the port, and a first cavity portion 220 is disposed at a rear end of the first folded portion 210. The first fold 210 is initially in a compressed folded state, which allows the first fold 210 to expand when a low concentration solution enters the first non-flexible film lumen 200.
In this embodiment, the inner cavity of the second non-flexible film 300 includes a second folded portion 310 at the port, and a second cavity portion 320 is disposed at the rear end of the second folded portion 310. The second folding portion 310 is in a stretched state, and the second folding portion 310 is gradually compressed and folded when the inner cavity of the second non-flexible film 300 is pressed and moved forward.
In this embodiment, the inner cavities 200, 300 and 500 are made of non-flexible films.
In this embodiment, the soft shell cavity 400 is a non-tough film capsule cavity, and the hard shell cavity 100 is a plastic shell cavity. The soft shell cavity 400 can be immediately restored to the original state under the condition of no external force after being slightly extruded; when the soft shell mold cavity 400 is in operation, if the soft shell mold cavity 400 is extruded and cannot be restored, the volume of the soft shell mold cavity 400 is reduced, and then the flow of the low-concentration solution to the high-concentration solution is accelerated, so that when the soft shell mold cavity 400 is used, the soft shell mold cavity 400 is loosened by slightly pressing the soft shell mold cavity 400 to break the third non-tough film inner cavity 500 in the soft shell mold cavity 400, and the soft shell mold cavity 400 is timely restored.
In this embodiment, a check valve 600 for preventing external liquid from flowing backward is disposed at the liquid outlet 130, and the liquid outlet end of the liquid outlet 130 is connected to a catheter tube 700.
The working method of the indwelling needle assisting device for preventing blood coagulation comprises the following steps: in a normal state, the third non-flexible film inner cavity 500 is filled with a low-concentration solution with a concentration lower than that of the high-concentration solution, when the soft shell type cavity 400 is used, the closed third non-flexible film inner cavity 500 is squeezed, the third non-flexible film inner cavity 500 is broken, the low-concentration solution in the third non-flexible film inner cavity 500 overflows into the soft shell type cavity 400, the soft shell type cavity 400 is immediately restored after being pressed, and at the moment, the concentration difference exists between the low-concentration solution in the soft shell type cavity 400 and the high-concentration solution in the first non-flexible film inner cavity 200, so that the low-concentration solution can flow into the first non-flexible film inner cavity 200 through the semipermeable membrane 120, in the process, the pressure in the third non-flexible film inner cavity 500 is reduced, the third non-flexible film and the soft shell type cavity 400 can be subjected to osmotic pressure and gradually flattened, and the solution enters the first non-flexible film inner cavity 200 along with the solution, the first non-flexible film inner cavity 200 can be expanded forwards to extrude the second non-flexible film 300 inner cavity, so that the second non-flexible film 300 inner cavity gradually moves forwards, the volume is reduced in the process that the second non-flexible film 300 inner cavity moves forwards, the medical tube sealing liquid in the second non-flexible film 300 inner cavity flows out from the liquid outlet 130, flows into the indwelling needle through the indwelling needle hose 700, and then prevents blood from flowing backwards to the needle.
The above-mentioned operation flow and software and hardware configuration are only used as the preferred embodiment of the present invention, and not to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or directly or indirectly applied to the related art, are included in the scope of the present invention.
Claims (7)
1. An indwelling needle assisting device for preventing blood coagulation, comprising: the hard shell type catheter comprises a hard shell type cavity, wherein a liquid passing hole is formed in the bottom of the hard shell type cavity, a semipermeable membrane is arranged in the liquid passing hole, a liquid outlet is formed in the head of the hard shell type cavity, a first non-flexible membrane inner cavity communicated with the liquid passing hole is formed in one side of the bottom of the hard shell type cavity, the periphery of the liquid outlet in the bottom of the hard shell type cavity is sealed by the first non-flexible membrane inner cavity, a second non-flexible membrane inner cavity communicated with the liquid outlet is formed in one side of the head of the hard shell type cavity, a soft shell type cavity is connected to the outer side of the bottom of the hard shell type cavity, a sealed third non-flexible membrane inner cavity is formed in the soft shell type cavity, a high-concentration solution is filled in the first non-flexible membrane inner cavity.
2. The indwelling needle assembly according to claim 1, wherein: the first non-flexible film inner cavity comprises a first folding part positioned at the port, and a first cavity part is arranged at the rear end of the first folding part.
3. The indwelling needle assembly according to claim 1, wherein: the second non-flexible film inner cavity comprises a second folding part positioned at the port, and a second cavity part is arranged at the rear end of the second folding part.
4. The indwelling needle assembly according to any one of claims 1 to 3, wherein: the inner cavities of the first non-tough film, the second non-tough film and the third non-tough film are all made of non-tough films.
5. The indwelling needle assembly according to claim 4, wherein: the soft shell cavity is a non-toughness film capsule cavity, and the hard shell cavity is a plastic shell cavity.
6. The indwelling needle assembly according to claim 5, wherein: a one-way valve for preventing external liquid from flowing backwards is arranged at the liquid outlet, and the liquid outlet end of the liquid outlet is connected with a hose of a remaining needle.
7. An operating method of an indwelling needle assist device for preventing blood coagulation comprising the indwelling needle assist device for preventing blood coagulation according to claim 6, wherein: in a normal state, the third non-tough film inner cavity is filled with a low-concentration solution with a concentration lower than that of the high-concentration solution, when the soft shell type film is used, the soft shell type cavity is lightly pressed to extrude the closed third non-tough film inner cavity, the third non-tough film inner cavity is broken, the low-concentration solution in the third non-tough film inner cavity overflows into the soft shell type cavity, the soft shell type cavity is immediately restored after being pressed, at the moment, concentration difference exists between the low-concentration solution in the soft shell type cavity and the high-concentration solution in the first non-tough film inner cavity, so that the low-concentration solution can flow into the first non-tough film inner cavity through the semipermeable membrane, in the process, the pressure in the third non-tough film inner cavity is reduced, the third non-tough film and the soft shell type cavity can be gradually flattened under the action of osmotic pressure, and the first non-tough film inner cavity can be expanded forwards along with the solution, the second non-flexible film inner cavity is extruded to enable the second non-flexible film inner cavity to move forwards gradually, the volume is reduced in the process that the second non-flexible film inner cavity moves forwards, medical tube sealing liquid in the second non-flexible film inner cavity flows out from the liquid outlet, flows into the remaining needle through the remaining needle hose, and then blood backflow is prevented from flowing back into the needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911052488.1A CN110613872A (en) | 2019-10-31 | 2019-10-31 | Remaining needle auxiliary device for preventing blood coagulation and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911052488.1A CN110613872A (en) | 2019-10-31 | 2019-10-31 | Remaining needle auxiliary device for preventing blood coagulation and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110613872A true CN110613872A (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911052488.1A Pending CN110613872A (en) | 2019-10-31 | 2019-10-31 | Remaining needle auxiliary device for preventing blood coagulation and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110613872A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504242A (en) * | 1997-03-24 | 2004-06-16 | Implantable delivery device with self adjustable exit port | |
| CN1668279A (en) * | 2002-06-17 | 2005-09-14 | 阿尔萨公司 | Osmotic delivery system with early zero order push power engine comprising an osmotic agent dispersed in the fluid vehicle |
| US20080299173A1 (en) * | 2007-06-01 | 2008-12-04 | Johnson & Johnson Regenerative Therapeutics, Llc | Chondrocyte container and method of use |
| CN103861205A (en) * | 2014-03-13 | 2014-06-18 | 李林风 | Thrombus prevention device with indwelling catheter |
| CN104998323A (en) * | 2015-07-20 | 2015-10-28 | 北京伏尔特技术有限公司 | Novel continuous slow liquid feeding apparatus and installation and application method thereof |
-
2019
- 2019-10-31 CN CN201911052488.1A patent/CN110613872A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504242A (en) * | 1997-03-24 | 2004-06-16 | Implantable delivery device with self adjustable exit port | |
| CN1668279A (en) * | 2002-06-17 | 2005-09-14 | 阿尔萨公司 | Osmotic delivery system with early zero order push power engine comprising an osmotic agent dispersed in the fluid vehicle |
| US20080299173A1 (en) * | 2007-06-01 | 2008-12-04 | Johnson & Johnson Regenerative Therapeutics, Llc | Chondrocyte container and method of use |
| CN103861205A (en) * | 2014-03-13 | 2014-06-18 | 李林风 | Thrombus prevention device with indwelling catheter |
| CN104998323A (en) * | 2015-07-20 | 2015-10-28 | 北京伏尔特技术有限公司 | Novel continuous slow liquid feeding apparatus and installation and application method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191227 |
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| RJ01 | Rejection of invention patent application after publication |