CN210873437U - Disposable venous indwelling needle type blood transfusion device - Google Patents
Disposable venous indwelling needle type blood transfusion device Download PDFInfo
- Publication number
- CN210873437U CN210873437U CN201921165945.3U CN201921165945U CN210873437U CN 210873437 U CN210873437 U CN 210873437U CN 201921165945 U CN201921165945 U CN 201921165945U CN 210873437 U CN210873437 U CN 210873437U
- Authority
- CN
- China
- Prior art keywords
- shell
- tube
- blood transfusion
- murphy
- transfusion device
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- 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
- 210000004369 blood Anatomy 0.000 title claims abstract description 45
- 239000008280 blood Substances 0.000 title claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 19
- 210000003462 vein Anatomy 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 210000002381 plasma Anatomy 0.000 abstract description 21
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002504 physiological saline solution Substances 0.000 description 3
- 241001411320 Eriogonum inflatum Species 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 210000003743 erythrocyte Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The disposable venous indwelling needle type blood transfusion device effectively solves the problems that a steel needle is inconvenient to use when the existing blood transfusion device transfuses blood, the existing indwelling needle is complex in structure, and blood plasma is easy to coagulate when the existing Murphy's dropper is used; the medical needle cannula comprises a shell with a conical left end and two through ends, wherein a rubber plug positioned on the right side of the shell is arranged in the shell, a steel needle with a right end penetrating through the rubber plug and a left end extending out of the shell is coaxially connected in a sliding manner in the shell, a hose sleeved on the outer side of the steel needle and communicated with the interior of the shell is arranged at the left end of the shell, an extension tube communicated with the interior of the shell is arranged at the left side of the shell, a blood transfusion tube is movably connected with the free end of the extension tube, a Murphy's dropper with the upper axial direction and the lower axial direction is arranged at the free end of the blood transfusion tube, a guide tube communicated with the interior of the Murphy's dropper is arranged at the upper end of the; the structure is simple, the operation is convenient, the conception is novel, and the practicability is strong.
Description
Technical Field
The utility model relates to the technical field of blood transfusion medical equipment, in particular to a disposable vein indwelling needle type blood transfusion device.
Background
When blood transfusion is carried out, the steel needle is inconvenient to use, when the existing indwelling needle is used, the indwelling needle needs to be kept on a patient for a long time, when blood transfusion is not carried out, the patient is always in a frightened state in normal life, the indwelling needle is always worried about slipping and pain, so most of patients do not want to keep the indwelling needle on the body for a long time, but when the indwelling needle is used only once, the existing indwelling needle is complex in structure and high in cost; in addition, in the blood transfusion process of the Murphy's dropper on the existing blood transfusion device, the contact area of the blood plasma and the air is large, and the blood plasma is easy to coagulate and is not beneficial to blood transfusion.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming the defects of the prior art, the utility model aims to provide a disposable vein indwelling needle type blood transfusion device, which effectively solves the problems that the steel needle is inconvenient to use and the existing indwelling needle has complex structure when the existing blood transfusion device transfuses blood and the blood plasma is easy to coagulate when the existing Murphy's dropper is used.
The technical scheme of its solution is, the utility model discloses a left end is the shell that toper and both ends link up, be equipped with the rubber buffer that is located its right side in the shell, coaxial sliding connection has the right-hand member to run through the steel needle that the shell was stretched out to rubber buffer and its left end in the shell, the shell left end is equipped with the hose of suit in the steel needle outside and with the inside intercommunication of shell, the shell left side is equipped with the extension pipe rather than inside intercommunication, the free end swing joint of extension pipe has blood transfusion tube, axial murphyte about blood transfusion tube's free end was equipped with, murphyte's tube upper end is equipped with the pipe rather than inside intercommunication, the pipe lower extreme is equipped with and is located murphyte's intraductal and the horizontally takeover of lower surface, the takeover opening is down and.
Compared with the prior art, the beneficial effects of the utility model are that: the steel needle is only drawn out through the rubber plug and the sealing plug in the shell to play a sealing role, and compared with the existing remaining needle sealing mode, the structure is simpler, the cost is lower, and the disposable use is convenient; and the plasma upper surface in the Murphy's dropper contacts with the lower surface of adapter tube during the blood transfusion, can effectually reduce the area of plasma and air contact in the Murphy's dropper, can also reduce the difference in height of plasma whereabouts simultaneously to reduce the probability that plasma condenses and red blood cell breaks, make the effect of blood transfusion better, the security is higher, this simple structure, convenient operation conceives the novelty, and the practicality is strong.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a full section axonometric view of the middle shell of the utility model.
Fig. 3 is a full-section perspective view of the murphy's dropper of the present invention.
Fig. 4 is an enlarged view of a in fig. 2 according to the present invention.
Fig. 5 is an enlarged view of B in fig. 2 according to the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
The medical tube is characterized in that the medical tube is shown in figures 1 to 5, the medical tube comprises a shell 1 with a conical left end and two through ends, a rubber plug 2 located on the right side of the shell 1 is arranged in the shell 1, a steel needle 3 with a right end penetrating through the rubber plug 2 and a left end extending out of the shell 1 is coaxially and slidably connected in the shell 1, a hose 4 sleeved on the outer side of the steel needle 3 and communicated with the inside of the shell 1 is arranged at the left end of the shell 1, an extension tube 5 communicated with the inside of the shell is arranged at the left side of the shell 1, a blood conveying tube 6 is movably connected to the free end of the extension tube 5, a Murphy's tube 7 with the upper axial direction and the lower axial direction is arranged at the free end of the blood conveying tube 6, a catheter 8 communicated with the inside of the Murphy's tube 7 is arranged at the upper end of.
In order to facilitate the drawing out of the steel needle 3, the right end of the steel needle 3 is provided with an end cap 10 extending out of the shell 1, and the outer side of the end cap 10 is provided with a handle 11.
In order to achieve better sealing effect, a sealing plug 12 positioned between the rubber plug 2 and the extension tube 5 is arranged in the shell 1, and the steel needle 3 penetrates through the sealing plug 12.
In order to further achieve the sealing effect, the right side of the shell 1 is provided with an annular groove 13, the groove 13 is rotatably connected with a connecting ring 14, and the connecting ring 14 is connected with a plug 15 through a plastic rope.
In order to reduce the contact area between the blood plasma and the air, the diameter of the lower end opening of the adapting tube 9 is slightly larger than the inner diameter of the conduit 8, the lower end opening of the adapting tube 9 is slightly extended downwards, and the bending part is provided with a round corner.
In order to filter the blood plasma, a filter screen 16 fixedly connected with the bottom of the Murphy's dropper 7 is arranged in the Murphy's dropper.
In order to facilitate the connection of the extension tube 5 and the blood transfusion tube 6, the lower end of the blood transfusion tube 6 is provided with a connecting tube 19, and the free end of the connecting tube 19 can be inserted into the free end of the extension tube 5.
In order to facilitate the blood transfusion device to puncture the blood plasma bag and adjust the blood transfusion speed, the upper end of the conduit 8 is provided with a bottle stopper puncture device 17, and the outer side of the blood transfusion tube 6 is provided with a flow rate adjuster 18.
When the utility model is used, firstly, the bottle stopper puncture outfit 17 is connected with the infusion bag, then the lower end of the Murphy's dropper 7 is upward and the flow rate regulator 18 is opened, the Murphy's dropper 7 is filled with the physiological saline, when the Murphy's dropper 7 is vertically downward, the liquid level of the physiological saline is ensured to be contacted with the lower surface of the adapting tube 9, and the liquid level of the physiological saline can not be higher than the inner surface of the bottom of the adapting tube 9, and then the air in the blood transfusion tube 6 is exhausted;
when puncture is carried out, firstly, the part of a patient needing puncture is disinfected, then the handle 11 is held to puncture the steel needle 3 into the venous blood vessel of the patient, and the steel needle 3 can enter the venous blood vessel of the patient together with the hose 4 because the left end of the hose 4 is almost flush with the outer surface of the steel needle 3; after the steel needle 3 pierces the vein, when the steel needle 3 is withdrawn, the hose 4 is left in the vein, when the steel needle 3 is withdrawn to the right side of the sealing plug 12, the sealing plug 12 blocks the puncture part after the steel needle 3 is withdrawn under the elasticity of the sealing plug 12, and because the steel needle 3 is not withdrawn from the rubber plug 2, the steel needle is still in a sealing state, and the external air is ensured not to enter the shell 1 from the space between the sealing plug 12 and the steel needle 3;
when the steel needle 3 is continuously withdrawn, the rubber plug 2 is slightly longer, and the part punctured by the steel needle 3 is clamped by the sealing plug 12 on the left side of the rubber plug 2, so that when the steel needle 3 is withdrawn, the steel needle 3 is not completely withdrawn from the rubber plug 2, the part punctured by the steel needle 3 is clamped by the left end of the rubber plug 2 under the elasticity of the left end of the rubber plug 2, and the sealing property is better; after the steel needle 3 is completely pulled out of the shell 1, the plug 15 is plugged at the right end of the shell 1 to prevent the air leakage of the part punctured by the steel needle 3, and the plastic rope is cut off after the plug 15 is plugged to prevent the accidental hanging out and causing danger;
when the plasma bag needs to be replaced, the bottle plug puncture outfit 17 is taken down from the transfusion bag and inserted into the plasma bag for blood transfusion, and because the upper surface of the plasma in the Murphy's tube 7 is contacted with the lower surface of the adapting tube 9 during the blood transfusion and the lower surface of the adapting tube 9 is arranged in the horizontal direction, when the plasma is contacted with the lower stool surface of the adapting tube 9, the contact area of the plasma in the Murphy's tube 7 and the air can be effectively reduced, thereby reducing the probability of plasma coagulation and increasing the safety of the blood transfusion;
the utility model discloses set up connecting pipe 19, be connected with blood transfusion tube 6 for the convenience extension pipe 5.
Compared with the prior art, the beneficial effects of the utility model are that: the steel needle is only drawn out through the rubber plug and the sealing plug in the shell to play a sealing role, and compared with the existing remaining needle sealing mode, the structure is simpler, the cost is lower, and the disposable use is convenient; and the plasma upper surface in the Murphy's dropper contacts with the lower surface of adapter tube during the blood transfusion, can effectually reduce the area of plasma and air contact in the Murphy's dropper, can also reduce the difference in height of plasma whereabouts simultaneously to reduce the probability that plasma condenses and red blood cell breaks, make the effect of blood transfusion better, the security is higher, this simple structure, convenient operation conceives the novelty, and the practicality is strong.
Claims (7)
1. A disposable vein indwelling needle type blood transfusion device comprises a shell (1) with a conical left end and two through ends, and is characterized in that a rubber plug (2) positioned on the right side of the shell is arranged in the shell (1), the shell (1) is internally coaxially and slidably connected with a steel needle (3) with the right end penetrating through the rubber plug (2) and the left end extending out of the shell (1), the left end of the shell (1) is provided with a hose (4) sleeved on the outer side of the steel needle (3) and communicated with the inside of the shell (1), the left side of the shell (1) is provided with an extension tube (5) communicated with the inside of the shell, the free end of the extension tube (5) is movably connected with a blood transfusion tube (6), the free end of the blood transfusion tube (6) is provided with a Murphy's tube (7) in the vertical axial direction, the upper end of the Murphy's tube (7) is provided with a conduit (8) communicated with the inside of, the opening of the bearing pipe (9) is downward and the outer side wall of the bearing pipe is fixedly connected with the inner wall of the Murphy's dropper (7).
2. The disposable venous indwelling needle type blood transfusion device according to claim 1, wherein the right end of the steel needle (3) is provided with an end cap (10) extending out of the housing (1), and the outer side of the end cap (10) is provided with a handle (11).
3. The disposable venous indwelling needle type blood transfusion device according to claim 1, wherein a sealing plug (12) between the rubber stopper (2) and the extension tube (5) is provided in the housing (1), and the steel needle (3) penetrates through the sealing plug (12).
4. The disposable venous indwelling needle type blood transfusion device according to claim 1, wherein an annular groove (13) is formed in the right side of the housing (1), a connecting ring (14) is rotatably connected in the groove (13), and a plug (15) is connected to the connecting ring (14) through a plastic rope.
5. The disposable venous indwelling needle type blood transfusion device according to claim 1, wherein the diameter of the lower end opening of the adapting tube (9) is slightly larger than the inner diameter of the catheter (8), the lower end opening of the adapting tube (9) is slightly extended downwards, and the bending part is provided with a round angle.
6. The disposable venous indwelling needle type blood transfusion device according to claim 1, wherein a filter screen (16) fixedly connected with the bottom of the murphy's tube (7) is arranged in the murphy's tube.
7. The disposable venous indwelling needle type blood transfusion device according to claim 1, wherein the lower end of the blood transfusion tube (6) is provided with a connecting tube (19), and the free end of the connecting tube (19) is inserted into the extension tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165945.3U CN210873437U (en) | 2019-07-23 | 2019-07-23 | Disposable venous indwelling needle type blood transfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165945.3U CN210873437U (en) | 2019-07-23 | 2019-07-23 | Disposable venous indwelling needle type blood transfusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210873437U true CN210873437U (en) | 2020-06-30 |
Family
ID=71329330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921165945.3U Expired - Fee Related CN210873437U (en) | 2019-07-23 | 2019-07-23 | Disposable venous indwelling needle type blood transfusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210873437U (en) |
-
2019
- 2019-07-23 CN CN201921165945.3U patent/CN210873437U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200630 |