CN217091612U - Indwelling needle for hemodialysis - Google Patents
Indwelling needle for hemodialysis Download PDFInfo
- Publication number
- CN217091612U CN217091612U CN202220084500.8U CN202220084500U CN217091612U CN 217091612 U CN217091612 U CN 217091612U CN 202220084500 U CN202220084500 U CN 202220084500U CN 217091612 U CN217091612 U CN 217091612U
- Authority
- CN
- China
- Prior art keywords
- threaded rod
- fixedly connected
- screw thread
- hemodialysis
- thread post
- 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 23
- 230000000322 hemodialysis Effects 0.000 title claims abstract description 23
- 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 6
- 229960002897 heparin Drugs 0.000 claims description 6
- 229920000669 heparin Polymers 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 2
- 239000008280 blood Substances 0.000 abstract description 6
- 210000004369 blood Anatomy 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 239000012510 hollow fiber Substances 0.000 description 2
- 208000009304 Acute Kidney Injury Diseases 0.000 description 1
- 208000033626 Renal failure acute Diseases 0.000 description 1
- 239000002253 acid Substances 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
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 208000020832 chronic kidney disease Diseases 0.000 description 1
- 208000022831 chronic renal failure syndrome Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a hemodialysis is with keeping somewhere needle, including the toper pipe, the inside of toper pipe is provided with the needle tubing, adjustment mechanism is installed to the one end of toper pipe, adjustment mechanism is including seting up the spread groove at toper intraductal side, the inside swing joint of spread groove has the screw thread post, the first button piece of one end fixedly connected with of screw thread post, the inside of screw thread post, first button piece is provided with the expansion pipe, the first stopper of one end fixedly connected with of expansion pipe, the mounting groove has been seted up to the inside of screw thread post. A hemodialysis is with keeping somewhere needle, through the regulation of screw thread post and the warning of the elasticity of spring, avoid preventing to keep somewhere the needle and insert too deeply, bring the injury for the patient, convenient operation can improve the security greatly, secondly through carrying out the centre gripping to connecting the pipe fitting, the outflow of reducible blood when equipment is extracted, the waste that causes.
Description
Technical Field
The utility model relates to an indwelling needle technical field, in particular to an indwelling needle for hemodialysis.
Background
Hemodialysis is one of the kidney replacement treatment modes of patients with acute and chronic renal failure. The method comprises the steps of draining blood in vivo to the outside of the body, enabling the blood and electrolyte solution (dialysate) with similar body concentration to be inside and outside one hollow fiber through a dialyzer consisting of a plurality of hollow fibers, and carrying out substance exchange through dispersion, ultrafiltration, adsorption and convection principles, so as to remove metabolic waste in the body and maintain the balance of electrolyte and acid and alkali; and current hemodialysis is generally with keeping somewhere needle including consecutive pipe, taper tube, rubber tube and heparin cap, and in the human blood vessel of catheterization during the use, the heparin cap is linked together with the equipment that is used for hemodialysis, nevertheless because medical personnel's carelessness is easy with the overlength of pjncture needle puncture to make patient receive unexpected injury, cause the potential safety hazard, and traditional equipment is single, can't adjust the degree of depth condition that the needle body can insert.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a hemodialysis is with keeping somewhere needle can effectively solve the problem among the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a hemodialysis is with keeping somewhere needle, includes the toper pipe, the inside of toper pipe is provided with the needle tubing, adjustment mechanism is installed to the one end of toper pipe, adjustment mechanism is including seting up at the inboard spread groove of toper pipe, the inside swing joint of spread groove has the screw thread post, the first button piece of one end fixedly connected with of screw thread post, the inside of screw thread post, first button piece is provided with the movable tube, the first stopper of one end fixedly connected with of movable tube, the mounting groove has been seted up to the inside of screw thread post, fixedly connected with spring between one end of movable tube and one side inner wall of mounting groove.
Preferably, the tapered tube runs through the movable tube, the first limiting block and the interior of the threaded column respectively, and the threaded column is in threaded connection with the connecting groove.
Preferably, the screw thread post presents as an organic wholely with first button piece, the movable tube is swing joint with screw thread post, first button piece respectively, the movable tube is with mounting groove looks adaptation.
Preferably, the first limiting block and the movable pipe are integrated, and the spring is in a loose state.
Preferably, both ends difference fixedly connected with auxiliary block around the conical duct, the other end fixedly connected with of conical duct connects the pipe fitting, the one end fixedly connected with heparin cap of connecting the pipe fitting, the outside cover of connecting the pipe fitting has clamping mechanism, clamping mechanism is including setting up the lower dead lever of connecting the pipe fitting downside, the upper end of dead lever is close to the first threaded rod of front side position fixedly connected with down, the upper end of dead lever is close to rear side position fixedly connected with second threaded rod down, the outside cover of first threaded rod and second threaded rod has the movable rod, fixedly connected with second stopper respectively is distinguished to the upside of first threaded rod and second threaded rod, the upside position difference swing joint of first threaded rod and second threaded rod has the second button piece.
Preferably, the connecting pipe fitting is made of soft materials, the first threaded rod and the second threaded rod are respectively located on the front side and the rear side of the connecting pipe fitting, and the upper movable rod is movably connected with the first threaded rod and the second threaded rod.
Preferably, the width of the second limiting block is greater than that of the second threaded rod, and the two groups of second button blocks are in threaded connection with the first threaded rod and the second threaded rod respectively.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. through the adjustment of the threaded column and the reminding of the elasticity of the spring, the condition that the indwelling needle is inserted too deeply to hurt patients is avoided, the operation is convenient, and the safety can be greatly improved.
2. Through rotating two sets of second button pieces for two sets of second button pieces move down along threaded connection's first threaded rod and second threaded rod, and first threaded rod and second threaded rod move down can promote the movable rod dead lever downwards and draw close, carry out the centre gripping to the middle connection pipe fitting, the outflow of reducible blood when equipment is extracted, the waste that causes.
Drawings
FIG. 1 is a schematic view of the overall structure of an indwelling needle for hemodialysis of the present invention;
FIG. 2 is a schematic view of a partial sectional structure of an indwelling needle for hemodialysis of the present invention;
FIG. 3 is an enlarged schematic view of the part A of the indwelling needle for hemodialysis of the present invention;
FIG. 4 is a schematic view of a partially cut-away structure of an adjusting mechanism of an indwelling needle for hemodialysis;
fig. 5 is a schematic structural view of a clamping mechanism of an indwelling needle for hemodialysis of the present invention.
In the figure: 1. a tapered tube; 2. a needle tube; 3. an adjustment mechanism; 31. connecting grooves; 32. a threaded post; 33. a first button block; 34. a movable tube; 35. a first stopper; 36. mounting grooves; 37. a spring; 4. an auxiliary block; 5. connecting pipe fittings; 6. a heparin cap; 7. a clamping mechanism; 71. a lower fixing rod; 72. a first threaded rod; 73. a second threaded rod; 74. an upper movable rod; 75. a second limiting block; 76. a second button block.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-5, an indwelling needle for hemodialysis, including conical tube 1, the inside of conical tube 1 is provided with needle tube 2, adjustment mechanism 3 is installed to the one end of conical tube 1, adjustment mechanism 3 is including seting up at the inboard spread groove 31 of conical tube 1, the inside swing joint of spread groove 31 has screw thread post 32, the first button piece 33 of one end fixedly connected with of screw thread post 32, the inside of first button piece 33 is provided with movable tube 34, the first stopper 35 of one end fixedly connected with of movable tube 34, mounting groove 36 has been seted up to the inside of screw thread post 32, fixedly connected with spring 37 between one end of movable tube 34 and the one side inner wall of mounting groove 36.
In this embodiment, conical tube 1 runs through the inside of movable tube 34, first stopper 35, screw thread post 32 respectively, and screw thread post 32 is the threaded connection relation with connecting groove 31, and screw thread post 32 presents as an organic wholely with first button 33, and movable tube 34 is swing joint with screw thread post 32, first button 33 respectively, and movable tube 34 and mounting groove 36 looks adaptation, and first stopper 35 presents as an organic wholely with movable tube 34, and spring 37 is lax state.
Specifically, the two groups of auxiliary blocks 4 are convenient for doctors to hold, hold and fix for use, and then the first button block 33 is rotated according to the physique of different people to drive the fixedly connected threaded column 32 to rotate, and the screw post 32 is screw-coupled with the coupling groove 31, so that the screw post 32 and the first knob block 33 are moved to one side, thereby covering the length of the needle tube 2, adjusting the needle tube 2 to a proper length, inserting the needle tube 2 into the skin, however, when the first stopper 35 is in contact with the skin, the movable tube 34 is moved toward the inside of the mounting groove 36, the compression of the spring 37 allows the physician to generate a resistive force alert when the physician is inserting, indicating that the proper length has been inserted, through the adjustment of the threaded column 32 and the reminding of the elasticity of the spring 37, the condition that the indwelling needle is inserted too deeply to cause injury to patients is avoided, the operation is convenient, and the safety can be greatly improved.
In this embodiment, the front and rear ends of the tapered tube 1 are respectively and fixedly connected with the auxiliary blocks 4, the other end of the tapered tube 1 is fixedly connected with the connecting tube 5, one end of the connecting tube 5 is fixedly connected with the heparin cap 6, the outer side of the connecting tube 5 is sleeved with the clamping mechanism 7, the clamping mechanism 7 comprises a lower fixing rod 71 arranged at the lower side of the connecting tube 5, the upper end of the lower fixing rod 71 is fixedly connected with a first threaded rod 72 near the front side, the upper end of the lower fixing rod 71 is fixedly connected with a second threaded rod 73 near the rear side, the outer sides of the first threaded rod 72 and the second threaded rod 73 are sleeved with an upper movable rod 74, the upper sides of the first threaded rod 72 and the second threaded rod 73 are respectively and fixedly connected with a second limiting block 75, the upper sides of the first threaded rod 72 and the second threaded rod 73 are respectively and movably connected with a second button block 76, the connecting tube 5 is made of soft material, the first threaded rod 72 and the second threaded rod 73 are respectively arranged at the front and rear sides of the connecting tube 5, the upper movable rod 74 is movably connected with the first threaded rod 72 and the second threaded rod 73, the width of the second limiting block 75 is larger than that of the second threaded rod 73, and the two groups of second button blocks 76 are in threaded connection with the first threaded rod 72 and the second threaded rod 73 respectively.
Specifically, through rotating two sets of second button blocks 76, make two sets of second button blocks 76 move down along threaded connection's first threaded rod 72 and second threaded rod 73, and first threaded rod 72 and second threaded rod 73 move down and can promote movable rod 74 dead lever 71 down and draw close, carry out the centre gripping to middle connecting tube spare 5, the outflow of reducible blood when equipment is extracted, the waste of causing.
The working principle is as follows:
when in use, firstly, the two groups of auxiliary blocks 4 are convenient for doctors to hold and fix for use, then the first button block 33 is rotated according to the physique of different people, the fixedly connected threaded column 32 is driven to rotate, the threaded column 32 is in threaded connection with the connecting groove 31, so that the threaded column 32 and the first button block 33 move towards one side, the length of the needle tube 2 is covered, the needle tube 2 is adjusted to the proper length, after the needle tube 2 is inserted into the skin, but the movable tube 34 can move towards the inside of the mounting groove 36 when the first limiting block 35 is in contact with the skin, the spring 37 is compressed, the spring 37 can generate resistant force reminding when the doctor inserts, the proper length is indicated, the adjustment of the threaded column 32 and the elastic force reminding of the spring 37 are used, the condition that the indwelling needle is inserted too deep to cause injury to patients is avoided, the operation is convenient, and the safety can be greatly improved, secondly, through rotating two sets of second button blocks 76, make two sets of second button blocks 76 move down along threaded connection's first threaded rod 72 and second threaded rod 73, and first threaded rod 72 and second threaded rod 73 move down and can promote the lower dead lever 71 of upper movable rod 74 and draw close, carry out the centre gripping to the connecting tube spare 5 in the middle of, the outflow of reducible blood when equipment is extracted, the waste that causes.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An indwelling needle for hemodialysis, comprising a tapered tube (1), characterized in that: the inside of toper pipe (1) is provided with needle tubing (2), adjustment mechanism (3) are installed to the one end of toper pipe (1), adjustment mechanism (3) are including seting up at toper pipe (1) inboard spread groove (31), the inside swing joint of spread groove (31) has screw thread post (32), the first button piece (33) of the one end fixedly connected with of screw thread post (32), the inside of screw thread post (32), first button piece (33) is provided with movable tube (34), the first stopper (35) of the one end fixedly connected with of movable tube (34), mounting groove (36) have been seted up to the inside of screw thread post (32), fixedly connected with spring (37) between the one side inner wall of the one end of movable tube (34) and mounting groove (36).
2. The indwelling needle for hemodialysis of claim 1, wherein: the tapered tube (1) penetrates through the movable tube (34), the first limiting block (35) and the threaded column (32) respectively, and the threaded column (32) and the connecting groove (31) are in threaded connection.
3. The indwelling needle for hemodialysis of claim 1, wherein: screw thread post (32) present as an organic whole with first button piece (33), activity pipe (34) are swing joint with screw thread post (32), first button piece (33) respectively, activity pipe (34) and mounting groove (36) looks adaptation.
4. The indwelling needle for hemodialysis of claim 1, wherein: the first limiting block (35) and the movable pipe (34) are integrated, and the spring (37) is in a loose state.
5. The indwelling needle for hemodialysis of claim 1, wherein: the front end and the rear end of the conical pipe (1) are respectively fixedly connected with an auxiliary block (4), the other end of the conical pipe (1) is fixedly connected with a connecting pipe fitting (5), one end of the connecting pipe fitting (5) is fixedly connected with a heparin cap (6), the outer side of the connecting pipe fitting (5) is sleeved with a clamping mechanism (7), the clamping mechanism (7) comprises a lower fixing rod (71) arranged on the lower side of the connecting pipe fitting (5), the upper end of the lower fixing rod (71) is fixedly connected with a first threaded rod (72) close to the front side, the upper end of the lower fixing rod (71) is fixedly connected with a second threaded rod (73) close to the rear side, the outer sides of the first threaded rod (72) and the second threaded rod (73) are sleeved with an upper movable rod (74), and the upper sides of the first threaded rod (72) and the second threaded rod (73) are respectively fixedly connected with a second limiting block (75), the upper sides of the first threaded rod (72) and the second threaded rod (73) are respectively movably connected with a second button block (76).
6. The indwelling needle for hemodialysis of claim 5, wherein: the connecting pipe fitting (5) is made of soft materials, the first threaded rod (72) and the second threaded rod (73) are respectively located on the front side and the rear side of the connecting pipe fitting (5), and the upper movable rod (74) is movably connected with the first threaded rod (72) and the second threaded rod (73).
7. The indwelling needle for hemodialysis of claim 5, wherein: the width of the second limiting block (75) is larger than that of the second threaded rod (73), and the two groups of second button blocks (76) are in threaded connection with the first threaded rod (72) and the second threaded rod (73) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220084500.8U CN217091612U (en) | 2022-01-13 | 2022-01-13 | Indwelling needle for hemodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220084500.8U CN217091612U (en) | 2022-01-13 | 2022-01-13 | Indwelling needle for hemodialysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217091612U true CN217091612U (en) | 2022-08-02 |
Family
ID=82596226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220084500.8U Expired - Fee Related CN217091612U (en) | 2022-01-13 | 2022-01-13 | Indwelling needle for hemodialysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217091612U (en) |
-
2022
- 2022-01-13 CN CN202220084500.8U patent/CN217091612U/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: 20220802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |