CN213312262U - Non-pressure hemodialysis internal fistula puncture needle - Google Patents
Non-pressure hemodialysis internal fistula puncture needle Download PDFInfo
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- CN213312262U CN213312262U CN202021567035.0U CN202021567035U CN213312262U CN 213312262 U CN213312262 U CN 213312262U CN 202021567035 U CN202021567035 U CN 202021567035U CN 213312262 U CN213312262 U CN 213312262U
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Abstract
The utility model discloses a non-pressure hemodialysis internal fistula pjncture needle, including syringe needle, needle handle connecting pipe, needle tubing and sensor protector, the needle handle cup joints the setting on the needle handle connecting pipe, the syringe needle is pegged graft and is set up the one end at the needle handle connecting pipe, and the one end of needle tubing cup joints and sets up on the other end of needle handle connecting pipe, and the needle handle is located between the rear end of syringe needle and the front end of needle tubing, the rear end of needle tubing is fixed and is provided with the connector, sensor protector detachably is connected with the connector. The utility model discloses simple structure easily realizes, through the connector end threaded connection sensor protector at current pjncture needle, ensures that the needle tubing communicates with each other with the external world in the twinkling of an eye of puncture, makes blood flow naturally, and the in-process pressure that the blood flows will release, prevents that local pressure is too big to avoid blood to ooze, reduce the emergence of hematoma phenomenon.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, concretely relates to non-pressure hemodialysis internal fistula pjncture needle.
Background
Hemodialysis internal fistula pjncture needle is the medical instrument commonly used for hemodialysis patient's arteriovenous internal fistula puncture, and current pjncture needle usually has following not enough: because the pjncture needle is thicker, when the puncture, because the pressure in the blood vessel is great, especially internal fistula initial stage puncture, because pressure can not effectively release after the puncture, can slowly outwards ooze blood in the next hole of pjncture needle syringe needle, and then cause the hematoma, in case form the hematoma, need puncture again, not only influence the normal treatment that the blood passed through, form the scleroma behind the hematoma, also can influence the puncture next time, serious person still can cause the internal fistula to be blockked up, the ordinary pjncture needle of current adoption on the market, intravascular pressure can not effectively release during the puncture, it directly connects the blood way pipe to use ordinary pjncture needle clinically, the no pressure puncture of this kind of structure, because the parts of connecting on the blood way pipe are more, lead to the weight is heavier, make the pjncture needle deviate from easily, increase patient's painful sense and nurse's work.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a pressure-free hemodialysis internal fistula puncture needle.
The utility model discloses a following technical scheme realizes:
the internal fistula pjncture needle is passed through to no pressure blood, its characterized in that includes syringe needle, needle handle connecting pipe, needle tubing and sensor protector, the needle handle cup joints and sets up on the needle handle connecting pipe, the syringe needle is pegged graft and is set up the one end at the needle handle connecting pipe, and the one end of needle tubing cup joints and sets up on the other end of needle handle connecting pipe, and the needle handle is located between the rear end of syringe needle and the front end of needle tubing, the rear end of needle tubing is fixed and is provided with the connector, sensor protector detachably is connected with the connector.
The pressure-free hemodialysis internal fistula puncture needle is characterized in that the connector is a hollow hard tube, one end of the connector is fixedly connected with the needle tube, and a first external thread used for being connected with the sensor protector is arranged on the outer wall of the other end of the connector.
The pressure-free hemodialysis internal fistula puncture needle is characterized in that the sensor protector comprises a middle cavity, a first connecting end and a second connecting end, wherein the first connecting end and the second connecting end are arranged on two sides of the middle cavity, the first connecting end comprises an outer tube and an inner tube, the inner tube is inserted and arranged at the end part of the connecting end, a first internal thread matched with the first external thread for use is arranged on the inner wall of the outer tube, and a second external thread is arranged on the outer wall of the second connecting end.
The pressure-free hemodialysis internal fistula puncture needle is characterized in that the outer wall of the inner tube is matched with the inner wall of the hollow hard tube of the connector.
The pressure-free hemodialysis internal fistula puncture needle is characterized in that a breathable film is arranged in the middle cavity.
The pressure-free hemodialysis internal fistula puncture needle is characterized in that a current-limiting clamp used for controlling blood to flow through is movably arranged on the needle tube.
The utility model discloses simple structure easily realizes, through the connector end threaded connection sensor protector at current pjncture needle, ensures that the needle tubing communicates with each other with the external world in the twinkling of an eye of puncture, makes blood flow naturally, and the in-process pressure that the blood flows will release, prevents that local pressure is too big to avoid blood to ooze, reduce the emergence of hematoma phenomenon.
Drawings
FIG. 1 is a view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the connector of the present invention;
FIG. 3 is a schematic structural view of the sensor protector of the present invention;
in the figure, 1-needle head, 2-needle handle, 3-needle handle connecting pipe, 4-needle tube, 5-sensor protector, 51-middle cavity, 52-first connecting end, 53-second connecting end, 54-appearance, 55-inner tube, 56-second external thread, 6-connecting head, 7-first external thread and 8-current limiting clip.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings, and specific embodiments are given.
As shown in fig. 1, the utility model discloses no pressure blood passes through internal fistula pjncture needle, this internal fistula pjncture needle mainly is in order to solve the problem that hematoma appears easily in current blood passes through the in-process, its concrete structure includes the syringe needle, the needle handle connecting pipe, needle tubing and sensor protector, the activity is provided with one and is used for controlling the current-limiting clamp that blood flows on the needle tubing, the needle handle cup joints the setting on the needle handle connecting pipe, the syringe needle is pegged graft and is set up the one end at the needle handle connecting pipe, the one end of needle tubing is cup jointed and is set up on the other end of needle handle connecting pipe, the needle handle is located between the rear end of syringe needle and the front end of needle tubing, the rear end of.
As shown in fig. 2-3, the connector is a hollow hard tube, one end of the connector is fixedly connected with the needle tube, and the outer wall of the other end of the connector is provided with a first external thread for connecting with the sensor protector. The sensor protector comprises a middle cavity of the sensor protector, and a first connecting end and a second connecting end which are arranged on two sides of the middle cavity, wherein a breathable film is arranged in the middle cavity, the first connecting end comprises an outer pipe and an inner pipe, the inner pipe is inserted and arranged at the end part of the connecting head, the outer wall of the inner pipe is matched with the inner wall of a hollow hard pipe of the connecting head, a first internal thread matched with the first external thread for use is arranged on the inner wall of the outer pipe, a second external thread is arranged on the outer wall of the second connecting end, and the detachable connection of the connecting head and the sensor protector is realized through the arranged.
The utility model discloses well sensor protector is prior art, can directly purchase from the market and obtain, consequently, more detailed structure is not describing. During the use, in the twinkling of an eye of puncture, because the pressure in the blood vessel is great, is greater than external pressure, owing to set up the sensor protector at the needle tubing end again, makes pjncture needle and external world communicate with each other, therefore the blood of puncture flows naturally in the twinkling of an eye, releases the pressure in the hemorrhage tube, avoids blood to ooze along the needle tubing hole to avoid the emergence of hematoma phenomenon, this structure setting of no pressure blood internal fistula pjncture needle is simple, and the effect is obvious, easily realizes, the popularization and application of being convenient for.
Claims (6)
1. Non-pressure hemodialysis internal fistula pjncture needle, its characterized in that includes syringe needle (1), needle handle (2), needle handle connecting pipe (3), needle tubing (4) and sensor protector (5), needle handle (2) cup joint the setting on needle handle connecting pipe (3), syringe needle (1) is pegged graft and is set up the one end at needle handle connecting pipe (3), and the one end of needle tubing (4) is cup jointed and is set up on the other end of needle handle connecting pipe (3), and needle handle (2) are located between the rear end of syringe needle (1) and the front end of needle tubing (4), the rear end of needle tubing (4) is fixed and is provided with connector (6), sensor protector (5) detachably is connected with connector (6).
2. The pressureless hemodialysis fistula puncture needle according to claim 1, wherein the connector (6) is a hollow hard tube, one end of the connector (6) is fixedly connected with the needle tube (4), and the outer wall of the other end of the connector (6) is provided with a first external thread (7) for connecting with the sensor protector (5).
3. The pressureless hemodialysis internal fistula puncture needle according to claim 2, wherein the sensor protector (5) comprises a middle cavity (51), and a first connecting end (52) and a second connecting end (53) which are arranged on two sides of the middle cavity (51), the first connecting end (52) comprises an outer tube (54) and an inner tube (55), the inner tube (55) is inserted and arranged at the end of the connecting head (6), a first internal thread which is matched with the first external thread (7) is arranged on the inner wall of the outer tube (54), and a second external thread (56) is arranged on the outer wall of the second connecting end (53).
4. A pressure-free hemodialysis internal fistula puncture needle according to claim 3, wherein the outer wall of the inner tube (55) is fitted into the inner wall of the hollow hard tube of the connector (6).
5. A pressure-free hemodialysis internal fistula puncture needle according to claim 3, wherein a gas permeable membrane is built in the intermediate cavity (51).
6. The pressureless hemodialysis fistula puncture needle according to claim 1, wherein a flow restriction clip (8) for controlling the flow of blood is further movably provided on the needle tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021567035.0U CN213312262U (en) | 2020-07-31 | 2020-07-31 | Non-pressure hemodialysis internal fistula puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021567035.0U CN213312262U (en) | 2020-07-31 | 2020-07-31 | Non-pressure hemodialysis internal fistula puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213312262U true CN213312262U (en) | 2021-06-01 |
Family
ID=76093113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021567035.0U Active CN213312262U (en) | 2020-07-31 | 2020-07-31 | Non-pressure hemodialysis internal fistula puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213312262U (en) |
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2020
- 2020-07-31 CN CN202021567035.0U patent/CN213312262U/en active Active
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