CN211068441U - Indwelling needle with safety device - Google Patents
Indwelling needle with safety device Download PDFInfo
- Publication number
- CN211068441U CN211068441U CN201921294577.2U CN201921294577U CN211068441U CN 211068441 U CN211068441 U CN 211068441U CN 201921294577 U CN201921294577 U CN 201921294577U CN 211068441 U CN211068441 U CN 211068441U
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- China
- Prior art keywords
- safety
- needle
- hose
- puncture needle
- indwelling needle
- 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
- 239000013013 elastic material Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 4
- 229960002897 heparin Drugs 0.000 claims description 4
- 229920000669 heparin Polymers 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 210000004204 blood vessel Anatomy 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000030507 AIDS Diseases 0.000 description 1
- 208000028399 Critical Illness Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000006454 hepatitis Diseases 0.000 description 1
- 231100000283 hepatitis Toxicity 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a blood vessel puncture medical instrument field, concretely relates to indwelling needle with safety device, including indwelling needle subassembly and safety device, its characterized in that, safety device includes the safety sleeve, safety sleeve one end and indwelling needle subassembly phase-match, the safety sleeve other end are connected with the sealed safety helmet of dismantling of one end, and the intraductal gliding puncture needle file of condom tube inner wall that can follow that is equipped with of safety sleeve, the puncture needle file is close to the fixed pjncture needle that is equipped with of indwelling needle subassembly one end, and the puncture needle file other end is equipped with the dog that the diameter is greater than puncture needle file diameter, and puncture needle file outside cover is equipped with the spring, spring one end and safety sleeve inner wall are close to indwelling needle subassembly one end contact, the spring other end and dog. The utility model discloses after the puncture needle takes out the human body, a key can take in safety device with the puncture needle, avoids stabbing the accident that arouses because of the error, is equipped with the elasticity end cap in the hose seat simultaneously, plays automatically after moving back the needle and ends the effect that the excessive sealed, need not to seal the operation repeatedly.
Description
Technical Field
The utility model relates to a vascular puncture medical instrument field, concretely relates to indwelling needle with safety device.
Background
The clinical indwelling needle is increasingly widely used, and is commonly used for the transfusion of critically ill patients for rescue, patients with advanced cancer and patients with high puncture difficulty; however, in the clinical use process of the indwelling needle, when medical care personnel withdraw the needle after successful puncture, the needle head is not protected, the needle head is usually punctured by the needle point carelessly, the infected diseases caused by the puncture wound are mainly hepatitis and AIDS, and the physical and psychological health of the medical care personnel is seriously threatened. Meanwhile, the tube needs to be flushed and sealed repeatedly during transfusion, so that the workload is high, and certain hidden danger is caused to the health of medical care personnel and patients.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem, the utility model provides a keep somewhere needle with safety device, after the pjncture needle takes out the human body, a key can be with pjncture needle income safety device, avoids pricking the accident that arouses because of the error, is equipped with the elasticity end cap in the hose seat simultaneously, automatic plays the effect that the only overflows and seal after withdrawing the needle, need not to seal the operation repeatedly.
The utility model discloses a realize through following technical scheme:
an indwelling needle with a safety device comprises an indwelling needle assembly and the safety device, and is characterized in that the safety device comprises a safety sleeve, one end of the safety sleeve is matched with the indwelling needle assembly, the other end of the safety sleeve is connected with a detachable safety cap with one sealed end, a puncture needle seat capable of sliding along the inner wall of the safety sleeve is arranged in the safety sleeve, a puncture needle is fixedly arranged at one end of the puncture needle seat close to the indwelling needle assembly, a stop block with the diameter larger than that of the puncture needle seat is arranged at the other end of the puncture needle seat, a spring is sleeved outside the puncture needle seat, one end of the spring is in contact with one end of the inner wall of the safety sleeve close to the indwelling needle assembly;
the safety device also comprises a switch, wherein one part of the switch is arranged on the outer wall of the safety sleeve, and the other part of the switch passes through a first switch through hole arranged on the wall of the safety sleeve and is arranged in the safety sleeve and is contacted with a stop block at one end of the puncture needle base;
the switch is provided with a through hole at the inner part of the condom tube, and the inner diameter of the through hole is larger than the outer diameter of a stop block at one end of the puncture needle tube;
wherein the through hole is not aligned with the stop block at one end of the puncture needle tube;
wherein, an elastic sheet is arranged between the part of the switch arranged on the outer wall of the safety sleeve and the outer wall of the safety sleeve;
wherein a connecting bridge is arranged in the first switch through hole;
wherein the connecting bridge is matched with the switch;
wherein, the outer wall of the safety pipe sleeve is provided with anti-skid lines;
wherein the length of the safety sleeve is greater than that of the puncture needle;
the indwelling needle assembly comprises a hose seat and a needle head sheath, the needle head sheath is arranged at one end of the hose seat and is detachably connected with the hose seat, an elastic plug is arranged in the hose seat, the elastic plug is of a hollow structure with one side closed, a central hole is formed in the middle of the closed end, the central hole is in a closed state due to extrusion of elastic materials around, a hollow guide core is arranged in the elastic plug, and the guide core, the central hole and the hose seat are located on the same central axis;
one end of the hose seat is connected with a hose, the hose is arranged in the needle head sheath, the other end of the hose seat is matched with the safety sleeve, and the puncture needle sequentially penetrates through the guide core and the elastic plug along the axis of the hose seat and then penetrates out of the hose seat to be arranged in the hose;
wherein, the hose seat is equipped with the side hole seat, side hole seat and hose seat intercommunication, the one side that the elasticity end cap is close to the hose is located to the intercommunication point, and side hole seat one side is connected with the pipe, and pipe one end is connected with the malleation tee bend, and all the other two ventholes department of malleation tee bend are equipped with heparin cap and end cap respectively, the pipe outside still is equipped with the flow stopping and presss from both sides.
The utility model has the advantages that: (1) the safety device is arranged, after the puncture needle is taken out of a human body, the puncture needle can be taken into the safety device by one key, and accidents caused by puncture due to errors are avoided; (2) an elastic plug is arranged in the hose seat, so that the function of overflowing prevention and sealing is achieved, and the sealing operation is not required again; (3) the elastic plug is reversible in use, can be directly used for transfusion or blood drawing, does not need to be repeatedly sealed, and the safety device (4) adopts a split structure of a safety sleeve and a safety helmet, has a simple and detachable internal structure, is convenient to assemble and is convenient to produce; (5) the switch is provided with a connecting bridge which is fixed as a safety device, so that misoperation can be prevented.
Drawings
Fig. 1 is a longitudinal sectional structural view of the present application.
Fig. 2 is a perspective view of the present application.
Fig. 3 is an enlarged sectional view a of the present application.
Fig. 4 is an enlarged sectional view B of the present application.
Fig. 5 is a cross-sectional view of the switch position of the present application.
Fig. 6 is a perspective view of embodiment 2.
In the figure, 1, a puncture needle, 2, a guide core, 3, a puncture needle seat, 4, a switch, 5, a safety pipe sleeve, 6, a needle head sheath, 7, a hose, 8, a hose seat, 9, a central hole, 10, an elastic plug, 11, a spring, 12, a safety cap, 13, a notch, 14, a needle seat through hole, 15, a connecting bridge, 16, a stop dog, 17, a second switch through hole, 18, a connecting column, 19, a first switch through hole, 20, an anti-skid grain, 21, a catheter, 22, a side hole seat, 23, an end cap, 24, a heparin cap, 25, a positive pressure tee, 26, a flow stopping clamp, 27 and a shrapnel.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
As shown in figures 1 to 5, an indwelling needle with a safety device comprises an indwelling needle assembly and a safety device, wherein the indwelling needle assembly comprises a hose base 8 and a needle shield 6, the needle shield 6 is arranged at one end of the hose base 8 and is detachably connected with the hose base 8, the hose seat is provided with an elastic plug 10, the elastic plug 10 is usually made of elastic materials such as rubber, the elastic plug 10 is a cylindrical structure with a hollow interior and a closed end, a small central hole 9 is arranged in the middle of the closed end, when the central hole 9 is in a normal state, the flexible plug 10 is in a closed state due to extrusion of elastic materials around, the hard guide core 2 is arranged in the inner space of the flexible plug 10, the guide core 2 is of a hollow structure, the outer diameter shape of the guide core 2 is matched with the inner space of the flexible plug 10, and the guide core 2, the central hole 9 and the hose seat 8 are positioned on the same central shaft. One end of the hose seat 8 is connected with the hose 7, the hose 7 is arranged inside the needle sheath 6, and the other end of the hose seat 8 is matched with the safety device.
The safety device comprises a safety pipe sleeve 5, one end of the safety pipe sleeve 5 can be matched with a hose base 8 for installation, the end head of the safety pipe sleeve 5 can be inserted into the hose base 8 in a matched mode so as to be convenient for installation and needle withdrawing, such as clamping connection, screwing connection and the like, the other end of the safety pipe sleeve 5 is generally connected with a detachable safety cap 12 with one sealed end, and the safety cap 12 can be selected to be in threaded connection with the end head of the safety pipe sleeve 5. The safety pipe sleeve 5 is hollow, a puncture needle seat 3 capable of sliding along the inner wall of the safety pipe sleeve 5 is arranged in the safety pipe sleeve, one end of the puncture needle seat 3 is fixedly connected with a puncture needle 1, in a general state, the puncture needle seat 3 is positioned at one end, connected with a catheter seat 9, in the safety pipe sleeve 5, the puncture needle 1 extends out of the safety pipe sleeve 5 and sequentially penetrates through a guide core 2 and an elastic plug 10 along the axis of a hose seat 8 to penetrate through the hose seat 8 to be arranged in a hose 7, at the moment, the guide core 2 applies pressure to the closed end of the elastic plug 10 due to pressure, and a central hole 9 of the elastic plug 10 is opened due to. The other end of the puncture needle seat 3 is provided with a protruding stop block 16, and the diameter of the stop block 16 is larger than that of the puncture needle seat 3; the spring 11 is sleeved outside the puncture needle seat 3, one end of the spring 11 is contacted with one end of the inner wall of the safety sleeve 6 close to the indwelling needle assembly, the other end of the spring 11 is contacted with the protruding stop 16, and when the puncture needle seat 3 is positioned at one end connected with the catheter seat 9 in the safety sleeve 5 in a normal state, the spring 11 is in a compressed state under the extrusion of the stop 16.
The safety needle holder is characterized in that one end of the outer wall of the safety sleeve 6, which is close to the indwelling needle assembly, is provided with a first switch through hole 19, the position of the first switch through hole 19 is located on one side of a puncture needle holder stop block 16 and is matched with one end of the stop block 16 in a normal state to ensure that the switch 4 can be contacted with the puncture needle holder 3 to stop the motion of the puncture needle holder 3, a second switch through hole 17 is formed in a position symmetrical to the first switch through hole 19 to ensure that enough space can be reserved for the switch 4 to be pressed in, the middle of the second switch through hole 17 is provided with a fixed connection column 18, the switch 4 is generally in an L-shaped structure, one end of the switch 4 is located close to the outer wall of the safety sleeve 6 and is called a pressing end, a gap is reserved between the pressing end and the outer wall of the safety sleeve 5, the pressing end is connected with an elastic sheet 27 to ensure that the pressing end cannot be pressed down due to mistakenly touching, the other end of the switch is arranged in the safety sleeve 6 through the first switch through hole 19 and is arranged in the safety sleeve 6, so as a blocking end, when the safety sleeve 14 moves, the safety sleeve 14 is located in the safety sleeve 14, the safety sleeve 14 is located in a safety sleeve 14, the safety sleeve 14 is located in a safety sleeve 14, the safety sleeve.
The outer side of the safety pipe sleeve 5 is generally provided with anti-skid grains 20, so that the friction force is enhanced, and the generation of misoperation is reduced.
When the puncture needle is used, the needle head sheath 6 is taken down, the hose base 8 is held by hand for normal puncture, after the puncture is completed, the safety pipe sleeve 5 is separated from the hose base 8 and taken down, the puncture needle 1 is withdrawn from the human body, the hose 7 is kept in the human body, after the puncture needle 1 completely leaves the human body, the pressing end of the switch 4 is pressed, the connecting column 18 is pressed to cut the connecting bridge 15, the connecting column can pass through the notch 13, the switch loses the blocking of the connecting column 18 and can move towards the second switch through hole 17 until the needle base through hole 14 at the blocking end of the switch is aligned with the puncture needle base 3, the puncture needle base 3 is bounced into the safety cap 12 by the spring, the puncture needle 1 is collected into the safety pipe sleeve 5; meanwhile, after the puncture needle 1 exits the hose seat 8, the elastic plug 10 loses the pressure recovery shape, and the central hole 9 is squeezed and closed without additional tube sealing operation. After the operation is finished, the safety device can be discarded as medical waste. If the operations such as transfusion or blood drawing are needed, the needle head is inserted into the guide core 2 to open the central hole 9 of the elastic plug 10, the central hole 9 can be automatically closed when the needle is withdrawn, the blood spilling is prevented, and the operation is simple and rapid.
Example 2
As shown in fig. 6, an indwelling needle with a safety device comprises an indwelling needle assembly and a safety device, the indwelling needle assembly comprises a hose base 8 and a needle sheath 6, the needle sheath 6 is arranged at one end of the hose base 8 and is detachably connected with the hose base 8, the hose base is provided with an elastic plug 10, the elastic plug 10 is usually made of elastic materials such as rubber, the elastic plug 10 is of a cylindrical structure with a hollow inner part and a closed end, a small central hole 9 is arranged in the middle of the closed end, the central hole 9 is in a closed state due to extrusion of the surrounding elastic materials in a normal state, the inner space of the elastic plug 10 is provided with a hard guide core 2, the guide core 2 is of a hollow structure, the outer diameter shape of the guide core 2 is matched with the inner space of the elastic plug 10, and the guide core 2, the central hole 9 and the hose base 8 are positioned on the same central. One end of the hose seat 8 is connected with the hose 7, the hose 7 is arranged inside the needle sheath 6, and the other end of the hose seat 8 is matched with the safety device. The hose seat 8 is a Y-shaped three-way structure, a side hole seat 22 is arranged on one side, close to the hose 7, of the elastic plug 10, a guide pipe 21 is connected to one side of the side hole seat 22, one end of the guide pipe 21 is connected with a positive pressure three-way pipe 25, the other two through holes of the positive pressure three-way pipe 25 are respectively provided with a heparin cap 24 and an end cap 23, and a flow stopping clamp 26 is further arranged on the outer side of the guide pipe 21.
The safety device is as described in embodiment 1, the safety sleeve 6 is connected with the straight end of the hose seat 8, and the puncture needle 1 penetrates through the guide core 2, the elastic plug 10 and the hose seat 8 in sequence to extend into the inner side of the hose 7 as described in embodiment 1.
When the puncture needle is used, the needle head sheath 6 is taken down, the wing piece 2 is held by hand to normally puncture, after the puncture is completed, the safety tube sleeve 5 is separated from the hose seat 8 and taken down, the puncture needle 1 is withdrawn from the human body, the hose 7 is kept in the human body, after the puncture needle 1 completely leaves the human body, the pressing end of the switch 4 is pressed, the connecting column 18 is pressed to cut the connecting bridge 15, the connecting column can pass through the notch 13, the switch loses the blocking of the connecting column 18 and can move towards the second switch through hole 17 until the needle seat through hole 14 of the switch blocking end is aligned with the puncture needle seat 3, the puncture needle seat 3 is bounced into the safety cap 12 by the spring, and the puncture needle 1 is collected into the safety tube sleeve 5 to; meanwhile, after the puncture needle 1 exits the hose seat 8, the elastic plug 10 loses the pressure recovery shape, and the central hole 9 is squeezed and closed without additional tube sealing operation. When the transfusion operation is performed, the transfusion can be performed from the positive pressure three-way 25 according to the operation of the common Y-shaped indwelling needle, and if the blood drawing operation is required, the transfusion can be performed from the hose seat 8 through the guide core 2 according to the method described in the embodiment 1, so that the transfusion operation is convenient and quick.
Claims (9)
1. An indwelling needle with a safety device comprises an indwelling needle assembly and the safety device, and is characterized in that the safety device comprises a safety sleeve, one end of the safety sleeve is matched with the indwelling needle assembly, the other end of the safety sleeve is connected with a detachable safety cap with one sealed end, a puncture needle seat capable of sliding along the inner wall of the safety sleeve is arranged in the safety sleeve, a puncture needle is fixedly arranged at one end of the puncture needle seat close to the indwelling needle assembly, a stop block is arranged at the other end of the puncture needle seat, a spring is sleeved outside the puncture needle seat, one end of the spring is in contact with one end of the inner wall of the safety sleeve close to the indwelling needle assembly, and the other end of;
the safety device is characterized by further comprising a switch, wherein one part of the switch is arranged on the outer wall of the safety sleeve, and the other part of the switch penetrates through a first switch through hole arranged on the wall of the safety sleeve and is arranged in the safety sleeve and is in contact with a stop block at one end of the puncture needle base.
2. The indwelling needle with safety feature of claim 1, wherein the switch has a bore in the interior of the condom tube, the bore having an inside diameter greater than the outside diameter of the stop at one end of the puncture needle tube.
3. The indwelling needle with safety feature of claim 2, wherein the through hole is not aligned with the stop at the end of the penetrating needle cannula.
4. The indwelling needle with a safety device according to claim 2 or 3, wherein a notch is provided in the through hole on the side away from the first switch through hole, and a connecting bridge is provided in the notch.
5. The indwelling needle with safety device according to claim 4, wherein the wall of the safety cannula is provided with a second switch through hole on the side symmetrical to the first switch through hole, and the middle part of the second switch through hole is fixedly provided with a connecting column which is in contact with the connecting bridge.
6. The indwelling needle with safety device, according to claim 1, in which the condom wall is provided with anti-slip lines.
7. The indwelling needle with safety feature of claim 1, wherein the safety cannula is longer than the needle.
8. The indwelling needle with the safety device according to claim 1, wherein the indwelling needle assembly comprises a hose base and a needle head sheath, the needle head sheath is arranged at one end of the hose base and is detachably connected with the hose base, an elastic plug is arranged in the hose base, the elastic plug is of a hollow structure with one side closed, a central hole is formed in the middle of the closed end, the central hole is in a closed state due to extrusion of surrounding elastic materials, the outer diameter of the elastic plug is matched with the inner diameter of the hose base, a hollow guide core is arranged in the elastic plug, and the guide core, the central hole and the hose base are located on the same central axis;
one end of the hose seat is connected with the hose, the hose is arranged in the needle head sheath, the other end of the hose seat is matched with the safety sleeve, and the puncture needle sequentially penetrates through the guide core and the elastic plug along the axis of the hose seat and then penetrates out of the hose seat to be arranged in the hose.
9. The indwelling needle with the safety device according to claim 8, wherein the hose base is provided with a lateral hole base, the lateral hole base is communicated with the hose base, the communication point is arranged on one side of the elastic plug close to the hose, one side of the lateral hole base is connected with a catheter, one end of the catheter is connected with a positive pressure tee, the other two through holes of the positive pressure tee are respectively provided with a heparin cap and an end cap, and the outside of the catheter is further provided with a flow stopping clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921294577.2U CN211068441U (en) | 2019-08-08 | 2019-08-08 | Indwelling needle with safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921294577.2U CN211068441U (en) | 2019-08-08 | 2019-08-08 | Indwelling needle with safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211068441U true CN211068441U (en) | 2020-07-24 |
Family
ID=71632640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921294577.2U Expired - Fee Related CN211068441U (en) | 2019-08-08 | 2019-08-08 | Indwelling needle with safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211068441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448761A (en) * | 2019-08-08 | 2019-11-15 | 山东健护医疗科技有限公司 | A kind of fool proof remaining needle of band |
-
2019
- 2019-08-08 CN CN201921294577.2U patent/CN211068441U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448761A (en) * | 2019-08-08 | 2019-11-15 | 山东健护医疗科技有限公司 | A kind of fool proof remaining needle of band |
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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: 20200724 |