CN212699870U - Y type is kept somewhere needle for dialysis - Google Patents
Y type is kept somewhere needle for dialysis Download PDFInfo
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- CN212699870U CN212699870U CN202021843664.1U CN202021843664U CN212699870U CN 212699870 U CN212699870 U CN 212699870U CN 202021843664 U CN202021843664 U CN 202021843664U CN 212699870 U CN212699870 U CN 212699870U
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Abstract
The utility model discloses a Y type dialysis is with keeping somewhere needle, it includes tubing assembly and needle handle subassembly, the tubing assembly comprises pipe, nook closing member, pipe seat, and the needle handle subassembly comprises needle tubing, needle handle, and the nook closing member is connected in the rear end of pipe, and the pipe is located the inside of pipe seat, and the nook closing member passes the pipe seat, and the needle handle subassembly inserts from the rear end of tubing assembly, and the needle tubing in the needle handle subassembly runs through in keeping somewhere the needle pipe, the needle handle with the needle tubing is connected, and the hose is connected with the side of pipe seat. The utility model has the advantages that: the needle tube can be drawn out after puncture of the indwelling needle for dialysis, the cap is screwed into the rear end of the catheter seat to form a double-layer sealing structure with the rubber stop valve, blood leakage is prevented, the product is safe and reliable, and a high-polymer tubular object is left in the blood vessel. The blood vessel can not be damaged, the blood vessel puncture by a steel needle is avoided, the blood flow volume of a dialysis patient can not change suddenly when the body of the dialysis patient moves, the blood vessel can not be punctured by a needle head, and the first-aid patient is particularly suitable for restless patients in first aid.
Description
Technical Field
The utility model relates to a Y type dialysis is with keeping somewhere needle belongs to the medical instrument field, and mainly used vascular puncture is connected with the blood way, supplies clinical patient that need carry out hemodialysis or filter to use.
Background
The use of indwelling needles in dialysis is already common in some developed countries. For example, an indwelling needle is used in 70% of dialysis patients in Japan. After puncture, the needle tube can be drawn out, and the soft high molecular material tube-shaped material is remained in the blood vessel of the patient. Can not damage blood vessels and avoid the phenomenon that the internal fistula needle punctures the blood vessels. The body movement of the patient in the dialysis process can not cause the sudden change of the blood flow, and the worry that the needle punctures the blood vessel is avoided. Some restless patients are particularly suitable for use in first aid.
The indwelling needle for dialysis is mainly used in a hemodialysis chamber. At present, most hemodialysis rooms in China use internal fistula needle puncture, and indwelling needles for dialysis are rarely used.
1. Compare with internal fistula needle puncture, keep somewhere needle hose material soft, it is less to the stimulation of patient vascular wall, the damage of reducible vascular inner wall reduces the incidence of hematoma/oozing blood, can protect internal fistula blood vessel, and the catheter material is better than steel needle biocompatibility, and patient's allergy incidence is lower.
2. The use of an indwelling needle improves patient comfort. When the patient moves, the needle tip of the steel needle may stimulate the blood vessel to cause the patient to feel pain, and the patient using the indwelling needle may move relatively freely.
At present, the indwelling needle for dialysis used in a few domestic hospitals is imported from Japan, and has the advantages of precise design, good puncture performance and the like, but has the following defects, such as: the fixing is not firm, and when the arm of a patient moves slightly, the dialysis needle is easy to fall off, so that blood loss is caused, and dialysis interruption is caused; the silica gel hose part is too short, and the blood vessel forceps are inconvenient to clamp before blood is introduced, and the blood vessel forceps are metal objects with certain weight, are easy to pull the indwelling needle for dialysis, and can shift or even be separated.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a fixed firm, dialysis needle mends the Y type dialysis of easily deviating from, convenient to use, the difficult displacement of needle and uses and to keep somewhere the needle.
The utility model discloses a following scheme realizes: the Y-shaped indwelling needle for dialysis comprises a catheter component and a needle handle component, wherein the catheter component comprises a catheter, a needle core and a catheter seat, the needle handle component comprises a needle tube and a needle handle, the needle core is connected to the rear end of the catheter, the catheter is located inside the catheter seat, the needle core penetrates through the catheter seat, the needle handle component is inserted from the rear end of the catheter component, the needle tube in the needle handle component penetrates through an indwelling needle catheter, the needle handle is connected with the needle tube, and a hose is connected with the side edge of the catheter seat.
The hose outside cover has the pipe clamp, the hose rear end even has the conical joint, the conical joint protective sheath with the conical joint is connected.
The rubber stop valve is arranged in the conduit seat, the rubber stop valve is positioned at the rear end of the needle core, and the needle tube sequentially penetrates through the rubber stop valve, the needle core and the conduit.
The rear end of the needle handle is connected with the cap.
The catheter seat is provided with a sheath, and the catheter and the needle tube are positioned in the sheath.
The needle tube can be drawn out after the indwelling needle is used for puncture in dialysis, and the cap is screwed into the rear end of the catheter seat to form a double-layer sealing structure with the rubber stop valve.
The front end of the catheter is provided with a blood inlet hole, and the periphery of the catheter is provided with four side holes.
The hose is of a double-layer structure, the inner layer is a TPU layer, and the outer layer is a PVC layer.
The catheter seat is of a three-way Y-shaped structure,
the length of the hose is 150mm-300 mm.
The utility model has the advantages that:
1. the FEP catheter of the indwelling needle for Y-shaped dialysis of the utility model is connected with the needle core and then is assembled with the catheter seat in an interference fit way, the structure is simple, the connection is reliable, the manufacturing process is simple, and the production cost is low;
2. the utility model relates to a catheter material of indwelling needle for Y-shaped dialysis adopts fluororesin plastics, the steel needle can be taken out after puncture, the intraductal pipe type thing of soft polymer material that stays is in patient's blood, front end advance blood hole 1 with side hole 4, the blood sampling function is strong, the blood velocity of flow is steady, the flow is sufficient and the error is little, the movement of patient's health can not cause the sudden change of blood flow volume in the dialysis process;
3. the needle hose material of the indwelling needle for Y-shaped dialysis of the utility model adopts a double-layer supply technology (inner TPU, outer PVC), avoids the contact of blood and PVC material, has simple manufacturing process and low production cost, and reduces the production cost of products;
4. the utility model relates to a needle catheter seat of an indwelling needle for Y-shaped dialysis, which is of a three-way Y-shaped structure, increases the fixable area, is more firm to be fixed by an adhesive tape, is not easy to be separated from a product, and overcomes the defect that the existing indwelling needle for hemodialysis is easy to fall off;
5. the hose of the Y-shaped indwelling needle for dialysis is sleeved with the pipe clamp, so that the inconvenience and potential danger caused by using the vascular forceps are eliminated, and the product is more convenient and safer;
6. the utility model relates to a puncture point caused by an indwelling needle for Y-shaped dialysis is 2 sizes smaller than a metal arteriovenous fistula needle, for example, a 16G catheter, and an inner steel needle only needs 18G, so that the injury to the vascular wall can be reduced, and the service life of the blood vessel is prolonged;
7. the utility model relates to a Y type is dialyzed with remaining needle and internal fistula needle technique and is compared: in the dialysis process, secondary or multiple puncture injuries can not be caused;
8. the utility model relates to a Y-shaped indwelling needle for dialysis, which adopts a double-layer sealing structure, a rubber stop valve at the front end and a cap structure at the rear part 6:100, thereby preventing blood leakage and ensuring safe and reliable products;
9. the hose length of the indwelling needle for Y-shaped dialysis of the utility model is 150mm-300mm, which is 100mm longer than the hose length of the indwelling needle for existing hemodialysis, and ensures the sufficient length to be connected with the blood loop;
10. the utility model relates to a hose outside cover that Y type dialysis was used to keep somewhere needle has the pipe clamp, has saved inconvenience and the potential danger that uses the vascular pincers to bring, and the product is more convenient, safer.
Drawings
Fig. 1 is a front view of the indwelling needle for Y-dialysis of the present invention.
Fig. 2 is a schematic view of the front cross-sectional structure of the indwelling needle for Y-dialysis of the present invention.
Fig. 3 is an assembly schematic view of the indwelling needle for Y-dialysis of the present invention.
Fig. 4 is a schematic view of the opening of the FEP catheter of the Y-type indwelling needle for dialysis of the present invention.
Fig. 5 is a schematic view of the double-layer structure of the tube of the indwelling needle for Y-dialysis of the present invention.
Fig. 6 is a schematic view of the double-layer sealing structure of the indwelling needle for Y-type dialysis of the present invention.
In the figure: the device comprises a sheath 1, a catheter seat 2, a catheter 3, a needle core 4, a rubber stop valve 5, a needle tube 6, a needle handle 7, a cap 8, a hose 9, a tube clamp 10, a conical joint 11 and a conical joint protective sleeve 12.
Detailed Description
The present invention will be further described with reference to fig. 1-6, but the scope of the present invention is not limited to the description.
In which like parts are designated by like reference numerals. It is noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component, and the drawings are in greatly simplified form and employ non-precise ratios, merely for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention.
In the following description, for purposes of clarity, not all features of an actual implementation are described, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail, it being understood that in the development of any actual embodiment, numerous implementation details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, changing from one implementation to another, and it being recognized that such development efforts may be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.
The utility model provides a Y type is indwelling needle for dialysis, it includes catheter component and needle handle subassembly, the catheter component comprises pipe 3, nook closing member 4, pipe seat 2, the needle handle subassembly comprises needle tubing 6, needle handle 7, nook closing member 4 is connected at the rear end of pipe 3, pipe 3 is located the inside of pipe seat 2, nook closing member 4 passes pipe seat 2, the needle handle subassembly inserts from the rear end of catheter component, needle tubing 6 in the needle handle subassembly runs through in indwelling needle pipe 3, needle handle 7 is connected with needle tubing 6, hose 9 is connected with the side of pipe seat 2.
The outer side of the hose 9 is sleeved with a pipe clamp 10, the rear end of the hose 9 is connected with a conical joint 11, and a conical joint protective sleeve 12 is connected with the conical joint 11.
A rubber stop valve 5 is arranged in the conduit seat 2, the rubber stop valve 5 is positioned at the rear end of the needle core 4, and the needle tube 6 sequentially penetrates through the rubber stop valve 5, the needle core 4 and the conduit 3.
The rear end of the needle handle 7 is connected with a cover cap 8.
The catheter hub 2 is provided with a sheath 1, and the catheter 3 and the needle tube 6 are positioned in the sheath 1.
The needle tube 6 can be drawn out after the puncture of the indwelling needle for dialysis, and the cap 8 is screwed into the rear end of the catheter seat 2 to form a double-layer sealing structure with the rubber stop valve 5.
The front end of the catheter 3 is provided with a blood inlet hole, and the periphery is provided with four side holes.
The hose 9 is of a double-layer structure, the inner layer is a TPU layer, and the outer layer is a PVC layer.
The catheter holder 2 is a three-way Y-shaped structure,
the length of the hose 9 is 150mm-300 mm.
An indwelling needle for Y-shaped dialysis works as follows:
firstly, opening a package and taking out a product;
a second step of pulling back the needle handle 7 until it touches the catheter hub 2, ensuring that the needle is not covered by the tip of the catheter 3;
thirdly, the needle handle 7 is tightly held, so that the blade face of the needle tube faces upwards to puncture the blood vessel, when the blood backflow occurs, the catheter 3 is further inserted into the blood vessel for about 1cm, one hand tightly holds the catheter base 2, the other hand tightly holds the needle handle 7, and therefore the needle tube 6 is pulled out of the catheter 3;
the fourth step is to remove the conical joint protective sleeve 12 and connect the blood circuit to the conical joint 11;
fifthly, fixing the catheter 3 and the blood loop tube by using an adhesive plaster or the equivalent, and enabling the blood loop tube to be annular and fixed.
Claims (10)
1. The utility model provides a Y type is indwelling needle for dialysis which characterized in that: the catheter comprises a catheter component and a needle handle component, wherein the catheter component comprises a catheter (3), a needle core (4) and a catheter seat (2), the needle handle component comprises a needle tube (6) and a needle handle (7), the needle core (4) is connected to the rear end of the catheter (3), the catheter (3) is located inside the catheter seat (2), the needle core (4) penetrates through the catheter seat (2), the needle handle component is inserted from the rear end of the catheter component, the needle tube (6) in the needle handle component penetrates through an indwelling needle catheter (3), the needle handle (7) is connected with the needle tube (6), and a hose (9) is connected with the side edge of the catheter seat (2).
2. The indwelling needle for Y-dialysis as claimed in claim 1, wherein: the hose clamp (10) is sleeved on the outer side of the hose (9), the rear end of the hose (9) is connected with a conical joint (11), and a conical joint protective sleeve (12) is connected with the conical joint (11).
3. The indwelling needle for Y-dialysis as claimed in claim 1, wherein: the needle tube is characterized in that a rubber stop valve (5) is arranged in the catheter seat (2), the rubber stop valve (5) is located at the rear end of the needle core (4), and the needle tube (6) sequentially penetrates through the rubber stop valve (5), the needle core (4) and the catheter (3).
4. The indwelling needle for Y-dialysis as claimed in claim 1, wherein: the rear end of the needle handle (7) is connected with a cap (8).
5. The indwelling needle for Y-dialysis as claimed in claim 1, wherein: the catheter seat (2) is provided with a sheath (1), and the catheter (3) and the needle tube (6) are positioned in the sheath (1).
6. The indwelling needle for Y-dialysis as claimed in claim 4, wherein: the needle tube (6) can be drawn out after puncture of the indwelling needle for dialysis, and the cap (8) is screwed into the rear end of the catheter seat (2) to form a double-layer sealing structure with the rubber stop valve (5).
7. The indwelling needle for Y-dialysis as claimed in claim 1, wherein: the front end of the catheter (3) is provided with a blood inlet hole, and the periphery of the catheter is provided with four side holes.
8. The indwelling needle for Y-dialysis as claimed in claim 1, wherein: the hose (9) is of a double-layer structure, the inner layer is a TPU layer, and the outer layer is a PVC layer.
9. The indwelling needle for Y-dialysis as claimed in claim 1, wherein: the catheter seat (2) is of a three-way Y-shaped structure.
10. The indwelling needle for Y-dialysis as claimed in claim 1, wherein: the length of the hose (9) is 150mm-300 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021843664.1U CN212699870U (en) | 2020-08-29 | 2020-08-29 | Y type is kept somewhere needle for dialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021843664.1U CN212699870U (en) | 2020-08-29 | 2020-08-29 | Y type is kept somewhere needle for dialysis |
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| Publication Number | Publication Date |
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| CN212699870U true CN212699870U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021843664.1U Active CN212699870U (en) | 2020-08-29 | 2020-08-29 | Y type is kept somewhere needle for dialysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111905169A (en) * | 2020-08-29 | 2020-11-10 | 江西三鑫医疗科技股份有限公司 | Y type is kept somewhere needle for dialysis |
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2020
- 2020-08-29 CN CN202021843664.1U patent/CN212699870U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111905169A (en) * | 2020-08-29 | 2020-11-10 | 江西三鑫医疗科技股份有限公司 | Y type is kept somewhere needle for dialysis |
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