CN104288852A - Exhaust type dialysis remaining needle with switch - Google Patents
Exhaust type dialysis remaining needle with switch Download PDFInfo
- Publication number
- CN104288852A CN104288852A CN201410626872.9A CN201410626872A CN104288852A CN 104288852 A CN104288852 A CN 104288852A CN 201410626872 A CN201410626872 A CN 201410626872A CN 104288852 A CN104288852 A CN 104288852A
- Authority
- CN
- China
- Prior art keywords
- rotary switch
- conduit
- catheter block
- remaining needle
- switch
- 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.)
- Granted
Links
- 238000000502 dialysis Methods 0.000 title claims abstract description 30
- 229920002379 silicone rubber Polymers 0.000 claims description 15
- 210000000988 bone and bone Anatomy 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000008280 blood Substances 0.000 abstract description 10
- 210000004369 blood Anatomy 0.000 abstract description 10
- 229920001971 elastomer Polymers 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 230000002439 hemostatic effect Effects 0.000 abstract 2
- 239000000741 silica gel Substances 0.000 abstract 2
- 229910002027 silica gel Inorganic materials 0.000 abstract 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 241000255925 Diptera Species 0.000 description 5
- 238000001467 acupuncture Methods 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001631 haemodialysis Methods 0.000 description 2
- 230000000322 hemodialysis Effects 0.000 description 2
- NFGXHKASABOEEW-UHFFFAOYSA-N 1-methylethyl 11-methoxy-3,7,11-trimethyl-2,4-dodecadienoate Chemical compound COC(C)(C)CCCC(C)CC=CC(C)=CC(=O)OC(C)C NFGXHKASABOEEW-UHFFFAOYSA-N 0.000 description 1
- 230000001194 anti-hemostatic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/0021—Special media to be introduced, removed or treated removed from and reintroduced into the body, e.g. after treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0413—Blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/005—Anatomical parts of the body used as an access side to the body
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Anesthesiology (AREA)
- Urology & Nephrology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Emergency Medicine (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses an exhaust type dialysis remaining needle with a switch. The exhaust type dialysis remaining needle comprises a steel needle, a conduit and a conduit base, wherein a hemostatic plug is mounted at the tail end of the steel needle; the conduit is fixed at one end of the conduit base; a silica gel cap is mounted at the other end of the conduit base; a through hole matched with the steel needle is formed inside the conduit base and is connected with the conduit. The exhaust type dialysis remaining needle is characterized in that a rotary switch is arranged on the conduit base; a passage connected with the through hole inside the conduit base is arranged inside the rotary switch; an exhaust window is arranged on the surface of the conduit base and is positioned between the rotary switch and the silica gel cap. The exhaust type dialysis remaining needle provided by the invention has the advantages that in the preparation operation of dialysis, flowing and stopping of blood in the conduit base can be controlled by stirring a stirring handle, so that the potential safety hazards of overflowing of the blood or insufficient filling caused by misoperation in the using process of hemostatic forceps are effectively prevented, and the problem that a Y-shaped opening is difficult to control by using a circular rubber mat is solved.
Description
Technical field
The invention belongs to field of medical device, particularly relate to a kind of vented dialysis remaining needle of belt switch.
Background technology
Present stage clinical blood dialysis uses disposable diacan, and draw point is thick, and puncture pain, fear are large, and be trapped in the time in patient body long, inconvenient activity has the danger of piercing blood vessel.Systems in Certain Developed Countries changed use dialysis remaining needle in recent years, and use the puncture of fine steel needle overcoat flexible catheter, punctured rear extraction draw point, only put by conduit and stay in body, conduit quality soft comfortable.But dialysis remaining needle, after puncture completes, needs first to clamp the flexible pipe on dialysis remaining needle with mosquito forceps, remove silicon rubber cup, then slowly loosen mosquito forceps until the indwelling of blood face connects the mouth of pipe, more again clamp flexible pipe, connect extracorporeal circulation blood circuit, finally open mosquito forceps and carry out normal dialysis treatments.This process operation is complicated, and required medical personnel's technical merit is high, controls mosquito forceps precision high, otherwise the potential safety hazard that can cause hemorrhage or underfilling and cause.This technical problem hinders the development of dialysis remaining needle in hemodialysis.
In existing application for a patent for invention file, propose a kind of dialysis with switch and put that let the acupuncture needle remain at a certain point, be provided with screwed union sleeve pipe, in screwed union sleeve pipe, be provided with the circular rubber cushion of a Y-shaped opening, screwed union sleeve pipe is provided with spacing bayonet socket; The Y-shaped opening of circular rubber cushion is closure state at ordinary times, when needs and hemodialysis pipeline fittings, promoting screwed union sleeve pipe makes the cylindrical boss of switch connection tube fix at spacing bayonet socket place, forms path by switch connection tube through circular rubber cushion.Although above-mentioned application also reaches by the Y-shaped opening of circular rubber cushion the effect preventing blood from overflowing remaining needle interface, avoid pollution and loss of blood, but the Y-shaped opening of circular rubber cushion is wayward, be difficult to the accurate operation of the discharge of air and the spilling of anti-Hemostatic Oral Liquid, for dialysis procedure causes very high uncertainty.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of vented dialysis remaining needle of belt switch, solve the problem that blank area of putting that let the acupuncture needle remain at a certain point is operationally difficult to meticulous manipulation.
A kind of vented dialysis remaining needle of belt switch, comprise: draw point, conduit, catheter block, wherein: described draw point tail end is provided with tampon, described conduit is fixed on catheter block one end, the other end of catheter block is provided with silicon rubber cup, and catheter block inside is provided with the through hole agreed with draw point, and catheter block interior bone is connected with conduit, it is characterized in that: on catheter block, be provided with rotary switch, rotary switch inside is provided with the passage of connecting duct seat interior bone; Be provided with exhausting window in catheter hub surface, exhausting window is between rotary switch and silicon rubber cup.
Further, described rotary switch is inside and outside two-layer cylindrical shape, and rotary switch skin is vertically embedded on catheter block, interfixes with catheter block; The outer inwall of rotary switch is provided with the endless glide parallel with tangent plane, it is outer inner that rotary switch internal layer is enclosed within rotary switch, rotary switch internal layer be provided with the outer inwall with rotary switch endless glide phase contract and chute, rotary switch internal layer can be rotated relative to rotary switch skin by endless glide.
Further, described rotary switch is provided with dials handle, dials handle and is fixed on rotary switch internal layer, be provided with limited block I and limited block II at rotary switch skin.
Further, the passage of described rotary switch is identical with catheter block interior bone tangent plane.
Further, on described exhausting window, be provided with exhaust membrane, described exhaust membrane is polytetrafluoroethylene film.
Further, described silicon rubber cup is connected by spiral interface with catheter block.
In use, now rotary switch is dialled handle and be placed in limited block I position, draw point is inserted catheter block to catheter proximal end by silicon rubber cup, conduit and draw point are together inserted blood vessel, pinch catheter block and extract draw point, stir handle to limited block II position, the rotation of rotary switch internal layer is moved by dialling grip strip, cause being blocked between the passage of rotary switch and catheter block, take off silicon rubber cup, catheter block is connected with dialysis pipeline joint, stir handle to limited block I, path is opened between rotary switch passage and catheter block interior bone, blood is by rotary switch passage flow, gas is discharged from exhausting window, start dialysis treatment.
The present invention compared with prior art has remarkable advantage and beneficial effect: the vented dialysis remaining needle of a kind of belt switch provided by the present invention, in the prelude work carrying out dialysing, only need the flowing and the stopping that controlling catheter block inner blood by stirring handle, effectively to prevent in the process using mosquito forceps because the potential safety hazard such as the hemorrhage that causes of operate miss or underfilling, also solve when using circular rubber cushion the unmanageable problem of Y word opening.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention puts that let the acupuncture needle remain at a certain point combines;
Fig. 2 is that mid-let the acupuncture needle remain at a certain point dials handle and be allocated to schematic diagram in limited block I situation in the present invention;
Fig. 3 is the top view under Fig. 2 state;
Fig. 4 is that mid-let the acupuncture needle remain at a certain point dials handle and be allocated to schematic diagram in limited block II situation in the present invention;
Fig. 5 is the structural representation of rotary switch in Fig. 2;
Fig. 6 is the structural representation of rotary switch internal layer in Fig. 2.
Wherein, 1, draw point; 2, conduit; 3, catheter block; 4, rotary switch is outer; 5, rotary switch internal layer; 6, limited block II; 7, limited block I; 8, handle is dialled; 9, exhausting window; 10, silicon rubber cup; 11, tampon; 12, passage; 13, spiral interface; 14, through hole; 15, exhaust membrane; 16 chutes.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, to according to detailed description of the invention provided by the invention, structure, feature and effect thereof, be described in detail as follows.
A kind of vented dialysis remaining needle of belt switch, comprise: draw point 1, conduit 2, catheter block 3, wherein: described draw point 1 tail end is provided with tampon 11, described conduit 2 is fixed on catheter block 3 one end, the other end of catheter block 3 is provided with silicon rubber cup 10, and described silicon rubber cup 10 is connected by spiral interface 13 with catheter block 3; Catheter block 3 inside is provided with the through hole 14 agreed with draw point 1, catheter block 3 interior bone 14 is connected with conduit 2, catheter block 3 is provided with rotary switch, described rotary switch is be divided into inside and outside two-layer cylindrical shape, rotary switch skin 4 is vertically embedded on catheter block 3, interfixes with catheter block 3; Described rotary switch is provided with dials handle 8, and dial handle 8 and be fixed on rotary switch internal layer 5, be provided with limited block I 7 and limited block II 6 at rotary switch skin 4, the position of limited block I 7 and limited block II 6 as shown in Figure 2; Rotary switch inside is provided with the passage 12 of connecting duct seat 3 interior bone 14, and the passage 12 of rotary switch is identical with catheter block interior bone 13 tangent plane; Outer 4 inwalls of rotary switch are provided with the endless glide parallel with tangent plane, rotary switch internal layer 5 be provided with outer 4 inwalls with rotary switch endless glide phase contract and chute 16, rotary switch internal layer 5 can be rotated relative to rotary switch skin 4 by endless glide; Be provided with exhausting window 9 on catheter block 3 surface, exhausting window 9, between rotary switch and silicon rubber cup 10, on described exhausting window 9, is welded with exhaust membrane 15, and described exhaust membrane 15 is polytetrafluoroethylene film.
In use, now rotary switch is dialled handle 8 and be placed in limited block I 7 position, draw point 1 is inserted catheter block 3 to conduit 2 front end by silicon rubber cup 10, conduit 2 and draw point 1 are together inserted blood vessel, pinch catheter block 3 and extract draw point 1, stir handle 3 to limited block II 6 position, rotate by dialling handle 8 driven rotary switch internal layer 5, cause being blocked between the passage 12 of rotary switch internal layer 5 and the through hole 14 of catheter block, take off silicon rubber cup 10, catheter block 3 is connected with dialysis pipeline joint, stir handle 8 to limited block I 7, path is opened between the passage 12 of rotary switch internal layer 5 and catheter block 3 interior bone 14, blood is circulated by rotary switch passage 12, gas is discharged from exhausting window 9, start dialysis treatment.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (6)
1. the vented dialysis remaining needle of a belt switch, comprise: draw point, conduit, catheter block, wherein: described draw point tail end is provided with tampon, described conduit is fixed on catheter block one end, the other end of catheter block is provided with silicon rubber cup, and catheter block inside is provided with the through hole agreed with draw point, and catheter block interior bone is connected with conduit, it is characterized in that: on catheter block, be provided with rotary switch, rotary switch inside is provided with the passage of connecting duct seat interior bone; Be provided with exhausting window in catheter hub surface, exhausting window is between rotary switch and silicon rubber cup.
2. the vented dialysis remaining needle of a kind of belt switch according to claim 1, is characterized in that: described rotary switch is inside and outside two-layer cylindrical shape, and rotary switch skin is vertically embedded on catheter block, interfixes with catheter block; The outer inwall of rotary switch is provided with the endless glide parallel with tangent plane, it is outer inner that rotary switch internal layer is enclosed within rotary switch, rotary switch internal layer be provided with the outer inwall with rotary switch endless glide phase contract and chute, rotary switch internal layer can be rotated relative to rotary switch skin by endless glide.
3. the vented dialysis remaining needle of a kind of belt switch according to claim 1,2, is characterized in that: described rotary switch is provided with dials handle, dials handle and is fixed on rotary switch internal layer, be provided with limited block I and limited block II at rotary switch skin.
4. the vented dialysis remaining needle of a kind of belt switch according to claim 1, is characterized in that: the passage of described rotary switch is identical with catheter block interior bone tangent plane.
5. the vented dialysis remaining needle of a kind of belt switch according to claim 1, is characterized in that: on described exhausting window, be provided with exhaust membrane, and described exhaust membrane is polytetrafluoroethylene film.
6. the vented dialysis remaining needle of a kind of belt switch according to claim 1 is put, and it is characterized in that: described silicon rubber cup is connected by spiral interface with catheter block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626872.9A CN104288852B (en) | 2014-11-10 | 2014-11-10 | Exhaust type dialysis remaining needle with switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626872.9A CN104288852B (en) | 2014-11-10 | 2014-11-10 | Exhaust type dialysis remaining needle with switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104288852A true CN104288852A (en) | 2015-01-21 |
| CN104288852B CN104288852B (en) | 2017-02-15 |
Family
ID=52308954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410626872.9A Active CN104288852B (en) | 2014-11-10 | 2014-11-10 | Exhaust type dialysis remaining needle with switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104288852B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203694250U (en) * | 2014-01-09 | 2014-07-09 | 江苏苏云医疗器材有限公司 | Novel self-exhausting remaining needle |
| CN103933636A (en) * | 2014-04-17 | 2014-07-23 | 高宏 | Venous indwelling needle |
| CN104043154A (en) * | 2014-06-30 | 2014-09-17 | 天津哈娜好医材有限公司 | Dialysis remaining needle with switch |
| CN204319379U (en) * | 2014-11-10 | 2015-05-13 | 天津哈娜好医材有限公司 | A kind of exhaust dialysis remaining needle of rotatable control |
-
2014
- 2014-11-10 CN CN201410626872.9A patent/CN104288852B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203694250U (en) * | 2014-01-09 | 2014-07-09 | 江苏苏云医疗器材有限公司 | Novel self-exhausting remaining needle |
| CN103933636A (en) * | 2014-04-17 | 2014-07-23 | 高宏 | Venous indwelling needle |
| CN104043154A (en) * | 2014-06-30 | 2014-09-17 | 天津哈娜好医材有限公司 | Dialysis remaining needle with switch |
| CN204319379U (en) * | 2014-11-10 | 2015-05-13 | 天津哈娜好医材有限公司 | A kind of exhaust dialysis remaining needle of rotatable control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104288852B (en) | 2017-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Li Inventor after: Yang Shuwen Inventor after: Wang Qi Inventor before: Zhu Li Inventor before: Yang Shuwen |