CN215018638U - Puncture needle for hemodialysis - Google Patents
Puncture needle for hemodialysis Download PDFInfo
- Publication number
- CN215018638U CN215018638U CN202120642752.3U CN202120642752U CN215018638U CN 215018638 U CN215018638 U CN 215018638U CN 202120642752 U CN202120642752 U CN 202120642752U CN 215018638 U CN215018638 U CN 215018638U
- Authority
- CN
- China
- Prior art keywords
- needle body
- needle
- pipe fitting
- hemodialysis
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001631 haemodialysis Methods 0.000 title claims abstract description 15
- 230000000322 hemodialysis Effects 0.000 title claims abstract description 15
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 238000005457 optimization Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 208000009304 Acute Kidney Injury Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 208000033626 Renal failure acute Diseases 0.000 description 1
- 206010040047 Sepsis Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 201000011040 acute kidney failure Diseases 0.000 description 1
- 208000012998 acute renal failure Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000020832 chronic kidney disease Diseases 0.000 description 1
- 208000022831 chronic renal failure syndrome Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- External Artificial Organs (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model relates to a puncture needle for hemodialysis. The puncture needle for hemodialysis comprises a catheter component, wherein an inner cavity is formed in the catheter component, a through hole is formed in the side wall of the catheter component, a gradual changing head is arranged at one end of the catheter component, a needle body is connected in the gradual changing head, the needle body is a hollow needle body, the sharp end of the needle body is positioned outside the gradual changing head, the other end of the needle body is positioned in the inner cavity, the end part of the needle body positioned in the inner cavity is connected with an inner tube body, the inner tube body penetrates out of the catheter component, and a connector is arranged at the other end of the catheter component; the puncture needle for hemodialysis has the advantages of simple structure, convenience in operation, flexibility in use, reduction in operation steps of doctors and higher use prospect.
Description
Technical Field
The utility model belongs to the technical field of hemodialysis, concretely relates to pjncture needle for hemodialysis.
Background
With the development of medical science and technology, the blood purification technology has become an important technical means for treating various diseases such as acute and chronic renal failure, intractable heart failure, sepsis and the like, and the implementation of the blood purification technology is based on firstly establishing an extracorporeal circulation pipeline to lead blood out of the body and then infusing the purified blood back into the body after the blood is purified; in the prior art, at least two times of puncture is often needed and the catheter is used, the operation is very troublesome, and the use of doctors is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide a puncture needle for hemodialysis with simple structure and reasonable design.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the utility model provides a pjncture needle for hemodialysis, includes the pipe fitting, interior cavity has been seted up to the inside of pipe fitting, the through-hole has been seted up to the lateral wall of pipe fitting, the one end of pipe fitting is provided with the gradual change head, the gradual change is overhead to be connected with the needle body, the needle body is hollow needle body, the sharp end of needle body is located the outside of gradual change head, the other end of needle body is located the inside of interior cavity, the end connection that the needle body is located interior cavity has interior body, interior body is worn out the pipe fitting, the other end of pipe fitting is provided with the connector.
As a further optimization scheme of the utility model, the internal seal wire spare that is provided with of pipe spare, the one end of seal wire spare is worn out from through-hole department, and the sharp end opposite direction of this end direction and needle body, the other end of seal wire spare is worn out from the connector, the seal wire spare can be followed this connector position and pulled out.
As a further optimization scheme of the utility model, the needle body can slide in the gradual change head of the catheter component until the sharp end is taken in the gradual change head.
As a further optimization scheme of the utility model, be provided with rubber sleeve in the gradual change head, rubber sleeve's inner wall and the surface in close contact with of needle body.
As a further optimization scheme of the utility model, the connector includes first end and second end, interior body wears out from first end, the seal wire spare is worn out from second end.
The beneficial effects of the utility model reside in that: the utility model discloses be provided with needle body and pipe spare, the passageway has been seted up to the inside of needle body, and the pipe body is connected with external machine through interior pipe body, and the through-hole is seted up to the surface of pipe spare, through-hole and interior cavity intercommunication, interior cavity is connected with the second end, is connected with external machine through the second end, can prick once through this pjncture needle, and the binary channels cavity uses, and is very convenient, has reduced doctor operating procedure, alleviates patient's pain and feels. The whole puncture needle is simple in structure, convenient to operate and flexible to use, reduces the operation steps of doctors, and has a high use prospect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of the structure of fig. 1 after the operation of the present invention.
In the figure: 1. a conduit member; 2. an inner tube body; 3. a needle body; 4. a first end; 5. a through hole; 6. a wire guide; 7. an inner cavity; 8. a second end.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1-2, a puncture needle for hemodialysis comprises a catheter component 1, an inner cavity 7 is formed in the catheter component 1, a through hole 5 is formed in the side wall of the catheter component 1, a gradual change head is arranged at one end of the catheter component 1, a needle body 3 is connected in the gradual change head, the needle body 3 is a hollow needle body and is open at two ends, a sharp end of the needle body 3 is located outside the gradual change head, the other end of the needle body 3 is located in the inner cavity 7, an inner tube 2 is connected to the end of the needle body 3 located in the inner cavity 7, the inner tube 2 penetrates out of the catheter component 1, and a connector is arranged at the other end of the catheter component 1.
The inner cavity 7 of the catheter component 1 is internally provided with a wire guide component 6, one end of the wire guide component 6 penetrates out from the through hole 5, the direction of the end head is opposite to the direction of the sharp end of the needle body 3, the other end of the wire guide component 6 penetrates out from the connector, and the wire guide component 6 can be pulled out from the position of the connector. The guide wire piece 6 can be well exposed outside the catheter piece 1 and bent to improve expanded blood vessels after the catheter piece 1 is inserted into the blood vessels, after expansion is finished, the guide wire piece 6 can be well drawn out of the catheter piece 1 directly through the pulling mode, if necessary, the diameter of the guide wire piece 6 can be matched with the diameter of the through hole 5, the through hole 5 is blocked through the guide wire piece 6, and the catheter piece is convenient to use during insertion.
The needle body 3 can slide in the gradual change head of the catheter part 1 until the sharp end of the needle body is collected into the gradual change head, the inner wall of the gradual change head can be made of elastic materials, tight connection of the gradual change head can be ensured, other structures capable of being collected can be adopted, and the possibility that the needle body 3 causes secondary damage to a human body in the human body is reduced. In this embodiment, be provided with the rubber sleeve pipe in the gradual change head, the outer surface in close contact with of rubber sleeve pipe's inner wall and needle body 3, rubber component and plastic component in this embodiment are human medical material. Meanwhile, the connector includes a first end 4 and a second end 8, the inner tube 2 penetrates out of the first end 4, and the wire guide 6 penetrates out of the second end 8, in this embodiment, the first end 4 and the second end 8 are as shown in fig. 1 and fig. 2, and are protruded tubes, the inner walls of the first end 4 and the second end 8 are provided with fastening structures, such as rubber sealing parts, to ensure their slidable sealing performance, or may be thread sealing structures, if a thread sealing structure is adopted, the inner wall of the first end 4 is provided with a thread structure with a shorter distance, and is connected with the inner tube 2 or the wire guide 6 through the thread structure, specifically, the tube wall of the inner tube 2 is provided with a thread structure to be matched with the inner wall of the first end 4, and the needle body 3 is fixedly connected with the inner tube 2, when the inner tube 2 is rotated, the needle body 3 can also be matched and rotated, so that the needle body 3 can be connected with the inner wall of the tapered head through a thread, compared with the sliding seal of a rubber part, the structure of the scheme is more stable, the connection between the second end 8 and the wire guide 6 is more convenient by adopting the rubber part, and the outer surfaces of the first end 4 and the second end 8 can be provided with corresponding thread structures, so that the connection between the first end and the input/output pipe fittings of medical instruments such as a dialysis machine is convenient, and the connection between the first end and the input/output pipe fittings of the medical instruments such as a dialysis machine is connected with the second end 8 and the end of the inner pipe body 2 in the embodiment.
This pjncture needle is provided with needle body 3 and pipe fitting 1, the passageway has been seted up to the inside of needle body 3, interior body 2 of intercommunication, be connected with external machine through interior body 2, through-hole 5 is seted up to the surface of pipe fitting 1, through-hole 5 and interior cavity 7 intercommunication, interior cavity 7 is connected with second end 8, be connected with external machine through second end 8, can once prick into through this pjncture needle, the binary channels cavity uses, and is very convenient, and the doctor operating procedure has been reduced, alleviates patient's pain and feels. The whole puncture needle is simple in structure, convenient to operate and flexible to use, reduces the operation steps of doctors, and has a high use prospect.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (5)
1. The utility model provides a pjncture needle for hemodialysis, a serial communication port, includes the pipe fitting, interior cavity has been seted up to the inside of pipe fitting, the through-hole has been seted up to the lateral wall of pipe fitting, the one end of pipe fitting is provided with gradually changes the head, the overhead needle body that is connected with gradually changes, the needle body is hollow needle body, the sharp end of needle body is located gradually change the outside of head, the other end of needle body is located the inside of interior cavity, the end connection that the needle body is located the interior cavity has interior body, interior body is worn out the pipe fitting, the other end of pipe fitting is provided with the connector.
2. A puncture needle for hemodialysis according to claim 1, comprising: the inner cavity of the guide pipe fitting is internally provided with a guide wire piece, one end of the guide wire piece penetrates out from the through hole, the direction of the end head is opposite to that of the sharp end of the needle body, the other end of the guide wire piece penetrates out from the connector, and the guide wire piece can be pulled out from the position of the connector.
3. A puncture needle for hemodialysis according to claim 2, comprising: the needle body can slide in the gradual change head of the catheter piece until the sharp end of the needle body is received in the gradual change head.
4. A puncture needle for hemodialysis according to claim 3, comprising: a rubber sleeve is arranged in the gradual-changing head, and the inner wall of the rubber sleeve is in close contact with the outer surface of the needle body.
5. A puncture needle for hemodialysis according to claim 2, comprising: the connector comprises a first end and a second end, the inner pipe body penetrates out of the first end, and the wire guide piece penetrates out of the second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120642752.3U CN215018638U (en) | 2021-03-30 | 2021-03-30 | Puncture needle for hemodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120642752.3U CN215018638U (en) | 2021-03-30 | 2021-03-30 | Puncture needle for hemodialysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215018638U true CN215018638U (en) | 2021-12-07 |
Family
ID=79153330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120642752.3U Expired - Fee Related CN215018638U (en) | 2021-03-30 | 2021-03-30 | Puncture needle for hemodialysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215018638U (en) |
-
2021
- 2021-03-30 CN CN202120642752.3U patent/CN215018638U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |