CN216877426U - Thrombosis-proof central venous catheter - Google Patents
Thrombosis-proof central venous catheter Download PDFInfo
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- CN216877426U CN216877426U CN202122313501.3U CN202122313501U CN216877426U CN 216877426 U CN216877426 U CN 216877426U CN 202122313501 U CN202122313501 U CN 202122313501U CN 216877426 U CN216877426 U CN 216877426U
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- indwelling catheter
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Abstract
The utility model discloses a central venous catheter for preventing thrombus, which comprises an indwelling catheter and a cuff sleeved outside the indwelling catheter, wherein the cuff is in sliding connection with the indwelling catheter, one end of the cuff, which is close to a liquid outlet of the indwelling catheter, is provided with a liquid outlet part for liquid to flow out, and the cuff is provided with a liquid inlet part. The thrombus-preventing central venous catheter provided by the utility model can effectively avoid thrombus formation at the contact part of the tip opening of the indwelling catheter and the blood vessel and the injury part of the blood vessel wall when large vein infusion is carried out, is beneficial to improving the safety of indwelling infusion and relieving the pain of a patient, and is very convenient to insert and pull out.
Description
Technical Field
The utility model relates to the technical field of indwelling needles, in particular to a central venous catheter for preventing thrombus.
Background
The central venous catheter is one of the important devices for large venous infusion at present, and the patients needing large venous infusion in hospitals are many, such as large operation patients, patients who cannot establish peripheral veins, patients who need long-term intravenous nutrition infusion or long-term liquid infusion, and the like. When the great vein infusion is carried out, the central venous puncture catheter is required to be arranged, but after the central venous puncture catheter is reserved for a long time, the human coagulation system is easy to be stimulated, venous thrombosis appears at the opening part of the catheter and the injury part of the vascular wall, and the health of a patient is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a central venous catheter for preventing thrombus, which can prevent the formation of thrombus and reduce the pain of a patient.
The utility model specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a prevent central venous catheter of thrombus, includes keeps somewhere pipe and cover and establishes the cover bag outside keeping somewhere the pipe, cover bag and keeping somewhere pipe sliding connection, the liquid outlet one end that the cover bag is close to keeping somewhere the pipe is equipped with the play liquid portion that supplies liquid outflow, and is provided with into liquid portion on the cover bag.
Furthermore, the liquid inlet part is an auxiliary liquid inlet pipe communicated with the inner side of the cuff.
Further, the liquid outlet part comprises a plurality of liquid outlet holes or liquid outlet slits which penetrate through the cuff.
Furthermore, the cuff comprises a connecting part, a liquid storage part and a liquid outlet part which are sequentially connected, the connecting part is tightly attached to the indwelling catheter, and the inner diameter of the liquid storage part is larger than the outer diameter of the indwelling catheter.
Further, the diameter of the liquid storage part is gradually reduced from the middle to the two ends, and the inner diameter of the liquid outlet part is larger than the outer diameter of the indwelling catheter.
Furthermore, the length of the liquid outlet part is more than or equal to 0.5 cm.
Furthermore, the indwelling catheter is provided with a scale line extending in the longitudinal direction of the indwelling catheter.
The utility model has the following beneficial effects:
1. the thrombus can be effectively prevented from being formed at the contact part of the vessel wall and the vessel with the opening at the tip end of the central venous catheter, and the pain of a patient is reduced;
2. the depth of the cuff inserted into the wound can be adjusted according to the condition of a patient, so that the liquid outlet part can be accurately inserted between the central venous catheter and the wound and reaches the injured part of the blood vessel wall, and the thrombus formed at the injured part of the blood vessel wall is prevented by liquid medicines such as heparin sodium and the like seeped from the liquid outlet part;
3. after the use, when the central venous catheter needs to be pulled out, the indwelling catheter is directly pulled out, and the cuff can be simultaneously pulled out along with the central venous catheter, so that the use is very convenient.
Drawings
FIG. 1 is a schematic view of a first embodiment of a central venous catheter;
FIG. 2 is a schematic structural view of a second embodiment of a central venous catheter;
FIG. 3 is a schematic structural view of a third embodiment of a central venous catheter;
reference numerals: 1-indwelling catheter, 2-cuff, 3-liquid inlet part, 4-liquid outlet part, 5-liquid storage part and 6-connecting part.
Detailed Description
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed" and "in communication" are to be construed broadly, e.g., as meaning in fixed communication, in removable communication, or in integral communication; either mechanically or electrically; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Examples
The present embodiment provides a central venous catheter for preventing thrombus, please refer to fig. 1, which comprises an indwelling catheter 1 and a cuff 2 covering the indwelling catheter 1, wherein the indwelling catheter 1 has the same structure with a central venous catheter which is used at ordinary times, a liquid outlet of the indwelling catheter 1 is inserted into a blood vessel for transfusion, the cuff 2 is connected with the indwelling catheter 1 in a sliding way, namely, the inner wall of the cuff 2 is attached to the outer wall of the indwelling catheter 1 and can push the cuff 2 to reciprocate along the indwelling catheter 1, one end of the cuff 2 close to the liquid outlet of the indwelling catheter 1 is provided with a liquid outlet part 4 for liquid to flow out, and the cuff 2 is provided with a liquid inlet part 3, is used for delivering liquid medicine such as heparin sodium and the like into the cuff 2 and then flows out of the human body through the liquid outlet part 4, the cuff 2 and the indwelling catheter 1 can be made of the same material as the current central venous catheter, such as polyethylene.
When in use, the liquid inlet of the indwelling catheter 1, namely the tip opening is inserted into the blood vessel, so as to perform transfusion, after the indwelling catheter 1 is inserted, the cuff 2 is pushed, so that the liquid outlet part 4 of the cuff 2 reaches the blood vessel wall, namely the liquid outlet part 4 is inserted between the wound left when the indwelling catheter 1 is inserted and the indwelling catheter 1 is inserted, after the transfusion is finished, the cuff 2 and the indwelling catheter 1 are connected with the heparin cap at one end outside the body of a patient, heparin sodium solution is injected into the indwelling catheter 1 and the cuff 2 through the heparin cap, at the moment, the heparin sodium solution in the indwelling catheter 1 is injected between the tip opening of the indwelling catheter 1 and the blood vessel, and the heparin sodium solution in the cuff 2 slowly leaks to the injury part through the liquid outlet part 4, so as to effectively avoid the formation of thrombus at the injury part of the blood vessel wall and the contact part of the indwelling catheter 1 and the blood vessel, and reduce the side effect of using the indwelling catheter, when the indwelling catheter 1 is pulled out, the cuff 2 does not need to be additionally operated, the cuff 2 can be withdrawn from the wound along with the indwelling catheter 1, and the operation is very convenient.
As a specific implementation mode of liquid inlet portion 3, liquid inlet portion 3 is the supplementary feed liquor pipe with the 2 inboard intercommunications of cuff, certainly liquid inlet portion 3 also can be including setting up the interface in cuff 2 one side and with interface connection's supplementary feed liquor pipe, connect supplementary feed liquor pipe through external mode like this, the structure can be relatively with cuff 2 and the direct integrated into one piece preparation of supplementary feed liquor pipe and more complicated, consequently this embodiment selects to make cuff 2 and supplementary feed liquor pipe integrated into one piece, connect heparin cap etc. through supplementary feed liquor pipe and come the heparin sodium solution of slow anti-clotting and can prevent that the vascular wall from damaging the department and forming the thrombus. Certainly in order to promote the convenience of operation, can also be in the same place auxiliary liquid inlet pipe is fixed with indwelling catheter 1 through sticky tape, buckle or other modes, no matter from which position take out indwelling catheter 1 like this, all can make the cover bag pull out along with indwelling catheter, in addition, liquid inlet portion 3 also can be directly for a setting at the interface of cover bag 2 one side, directly through this interface connect the heparin cap can, but this kind of mode is inconvenient fixes central venous catheter.
As an embodiment of the liquid outlet part 4, please refer to FIGS. 1 and 2, the liquid outlet part 4 includes a plurality of liquid outlet holes or slits penetrating the cuff 2, and both the liquid outlet holes and slits are preferably configured as micro-holes to allow the liquid medicine to slowly seep out to the wound. In addition, the liquid outlet part 4 can be made of other medical materials with permeability fixed on the cuff 2, so that the liquid outlet part cannot be directly integrated with the cuff 2, and the manufacturing steps are increased relatively.
In one possible embodiment, please refer to fig. 3, the cuff 2 comprises a connecting part 6, a liquid storage part 5 and a liquid outlet part 4 which are connected in sequence, the connecting part 6 is tightly attached to the indwelling catheter 1, the inner diameter of the liquid storage part 5 is larger than the outer diameter of the indwelling catheter 1, an auxiliary liquid inlet pipe is connected to the liquid storage part 5, the heparin sodium solution is sent into the liquid storage part 5, the convenience of the liquid inlet is improved, the liquid in the liquid storage part 5 is further enabled to seep to the wound through the liquid outlet part 4, and the connecting part 6 is preferably tightly attached to the indwelling catheter 1. Meanwhile, the diameter of the liquid storage part 5 can be gradually reduced from the middle to the two ends, the inner diameter of the liquid outlet part 4 is slightly larger than the outer diameter of the indwelling catheter 1, liquid seepage is facilitated, smooth transition can be performed between the liquid storage part 5 and the connecting part 6 and between the liquid outlet part 4, and the use safety is improved.
In order to make the liquid outlet part 4 reach the vascular wall well, the length of the liquid outlet part 4 is preferably more than or equal to 0.5cm, and the length of about 1cm is found to be more appropriate through practical use and basically meets the requirements of most intravenous transfusion.
The indwelling catheter 1 is provided with a scale line extending in the longitudinal direction of the indwelling catheter 1, and the depth of insertion of the indwelling catheter 1 into the wound and the depth of insertion of the cuff 2 into the wound can be grasped with the scale line.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (7)
1. The utility model provides a prevent central venous catheter of thrombus, its characterized in that, establishes cover cuff (2) outside indwelling catheter (1) including indwelling catheter (1) and cover, cuff (2) and indwelling catheter (1) sliding connection, cuff (2) are close to liquid outlet one end of indwelling catheter (1) and are equipped with liquid outlet portion (4) that supply liquid to flow out, and are provided with into liquid portion (3) on cuff (2).
2. The anti-thrombotic central venous catheter according to claim 1, characterised in that the liquid inlet part (3) is an auxiliary liquid inlet pipe communicating with the inside of the cuff (2).
3. Antithrombotic central venous catheter according to claim 2, characterized in that the tapping section (4) comprises several tapping holes or tapping slits through the cuff (2).
4. The central venous catheter for preventing thrombus as claimed in claim 3, wherein the cuff (2) comprises a connecting part (6), a liquid storage part (5) and a liquid outlet part (4) which are connected in sequence, the connecting part (6) is tightly attached to the indwelling catheter (1), the inner diameter of the liquid storage part (5) is larger than the outer diameter of the indwelling catheter (1), and the auxiliary liquid inlet pipe is connected with the liquid storage part (5).
5. The anti-thrombosis central venous catheter as claimed in claim 4, characterized in that the diameter of the liquid storage part (5) is gradually reduced from the middle to the two ends, and the inner diameter of the liquid outlet part (4) is larger than the outer diameter of the indwelling catheter (1).
6. The anti-thrombosis central venous catheter as claimed in claim 1, characterized in that the length of the liquid outlet part (4) is not less than 0.5 cm.
7. The anti-thrombosis central venous catheter as claimed in claim 1, characterized in that the indwelling catheter (1) is provided with a graduation mark extending in the length direction of the indwelling catheter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122313501.3U CN216877426U (en) | 2021-09-24 | 2021-09-24 | Thrombosis-proof central venous catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122313501.3U CN216877426U (en) | 2021-09-24 | 2021-09-24 | Thrombosis-proof central venous catheter |
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| Publication Number | Publication Date |
|---|---|
| CN216877426U true CN216877426U (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122313501.3U Active CN216877426U (en) | 2021-09-24 | 2021-09-24 | Thrombosis-proof central venous catheter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855906A (en) * | 2021-09-24 | 2021-12-31 | 泸州市中医医院(泸州市中西医结合医院、泸州市江阳区中医医院) | Thrombosis-proof central venous catheter |
-
2021
- 2021-09-24 CN CN202122313501.3U patent/CN216877426U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855906A (en) * | 2021-09-24 | 2021-12-31 | 泸州市中医医院(泸州市中西医结合医院、泸州市江阳区中医医院) | Thrombosis-proof central venous catheter |
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