CN210812961U - Disposable trocar for dialysis - Google Patents
Disposable trocar for dialysis Download PDFInfo
- Publication number
- CN210812961U CN210812961U CN201920858335.5U CN201920858335U CN210812961U CN 210812961 U CN210812961 U CN 210812961U CN 201920858335 U CN201920858335 U CN 201920858335U CN 210812961 U CN210812961 U CN 210812961U
- Authority
- CN
- China
- Prior art keywords
- rubber plug
- steel needle
- sleeve
- dialysis
- protection device
- 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.)
- Withdrawn - After Issue
Links
- 238000000502 dialysis Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 10
- 239000012943 hotmelt Substances 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 208000001848 dysentery Diseases 0.000 claims 2
- 239000008280 blood Substances 0.000 abstract description 10
- 210000004369 blood Anatomy 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007767 bonding agent Substances 0.000 abstract 1
- 210000004204 blood vessel Anatomy 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000002792 vascular Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Images
Landscapes
- External Artificial Organs (AREA)
Abstract
The utility model provides a trocar for disposable dialysis, its position with blood contact when using is physics environmental protection connected mode, do not need any bonding agent, connecting material when using ensures human safety, it includes the steel needle and the sleeve pipe that sets gradually, the casing seat, the silicone tube, luer connects, the screw cap, the plug structure, protection device, the steel needle seat, the front end socket of sheathed tube rear portion flaring end hot melt connection casing seat, connect through the silicone tube between the rear portion location end of casing seat and the anterior location end of luer connects, luer connects's rear end and screw cap threaded connection, the rear end of screw cap is provided with the rear end fixture block, the rear end fixture block card dress is anterior with the plug structure, the rear end card of plug structure is adorned in protection device's installation cavity, the end-to-end connection of steel needle is in the installation cavity of steel needle seat, the front end of steel needle runs through protection device in order, The rubber plug structure, the luer connector, the screw cap, the silicone tube and the sleeve seat are surrounded by the sleeve in an annular mode.
Description
Technical Field
The utility model relates to a technical field of trocar structure specifically is disposable trocar for dialysis.
Background
The blood penetrating trocars on the market at present mostly need to use bonding aids or metal accessories in the connection aspect of various parts in contact with blood, and the blood penetrating trocars have the following hazards: 1 the adhesive contains more or less chemical harmful components, and the patient can be harmed when using the adhesive; 2 metal accessories can cause nickel allergy symptoms of some patients; for this reason, there is a need to develop a trocar for dialysis that does not cause damage to the human body.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a disposable trocar for dialysis, its position that contacts with blood when using is physics environmental protection connected mode, does not need any adhesive, and the connecting material during the use ensures human safety.
The technical scheme is as follows: disposable trocar for dialysis, its characterized in that: the rubber plug comprises a steel needle, and a sleeve, a sleeve seat, a silicone tube, a luer connector, a screw cap, a rubber plug structure, a protection device and a steel needle seat which are sequentially arranged, wherein a rear flared end of the sleeve is in hot-melt connection with a front socket of the sleeve seat, a rear positioning end of the sleeve seat and a front positioning end of the luer connector are connected through the silicone tube, two ends of the silicone tube are respectively and tightly sleeved on the rear positioning end of the sleeve seat and the front positioning end of the luer connector, the rear end of the luer connector is in threaded connection with the screw cap, a rear clamping block is arranged at the rear end of the screw cap, the rear clamping block is clamped at the front part of the rubber plug structure, the rear end of the rubber plug structure is clamped in an installation cavity of the protection device, the front end of the steel needle seat is tightly pressed against an installation spigot of the protection device, and the tail end of the steel needle is connected with the installation cavity of the steel needle, the front end of the steel needle penetrates through the protection device, the rubber plug structure, the luer connector, the screw cap, the silicone tube and the sleeve seat in sequence and then is annularly surrounded by the sleeve.
Furthermore, a first side convex ring is arranged at the rear positioning end of the sleeve seat, a second side convex ring is arranged at the front positioning end of the luer connector, and the silicone tube correspondingly covers the first side convex ring and the second side convex ring, so that two ends of the silicone tube are respectively in sealing connection with the sleeve seat and the luer connector.
Further, the rubber plug structure specifically includes rubber plug cover, rubber plug, the rear end fixture block dress in form the cavity behind the front end of rubber plug cover, the rubber plug is located in the cavity, the rear end card of rubber plug cover adorns in protection device's installation cavity.
Further, the rubber plug comprises an upper rubber plug and a lower rubber plug, the upper rubber plug and the lower rubber plug are respectively in a concave shape, the upper rubber plug and the lower rubber plug respectively comprise a notch, and the notch of the upper rubber plug and the notch of the lower rubber plug are oppositely arranged and arranged in the cavity.
Furthermore, the front end of the sleeve is provided with a small hole.
Furthermore, the number of the small holes is four, and the orthographic projections of the four small holes in the axial direction of the sleeve are arranged in a cross shape.
Furthermore, the protection device comprises a limiting groove arranged along the radial direction, a limiting block is arranged in the limiting groove, a spring is sleeved on the limiting block, one end of the spring abuts against the side wall of the limiting groove, and the other end of the spring abuts against the steel needle.
Furthermore, the head of the steel needle is provided with a limiting part, and a limiting gasket matched with the limiting part is arranged in the protection device.
Furthermore, an exhaust connector is inserted at the tail end of the steel needle base.
Furthermore, a breathable film is arranged at the front end of the exhaust joint.
The sleeve pipe and the sleeve pipe seat of the disposable trocar for dialysis of the utility model are connected by using the characteristics of the materials, and are welded together by heating without any bonding auxiliary agent or metal parts for auxiliary connection; the sleeve seat, the silicone tube and the luer connector are connected physically by utilizing good elasticity and wrapping force of the silicone tube, and the silicone has excellent biocompatibility and is safer to use; in conclusion, the positions of the blood vessel and the blood vessel are all in a physical and environment-friendly connection mode when the blood vessel is used, no adhesive is needed, and the safety of a human body is ensured by the connection material when the blood vessel is used.
In addition, the utility model discloses a disposable rubber plug of trocar for dialysis, it includes upper rubber plug and lower rubber plug, the notch of upper rubber plug and the notch respectively of lower rubber plug are relative to be set up, arrange in the cavity, when the steel needle is extracted, the upper rubber plug can not be closed in time in the twinkling of an eye of extracting the needle and lead to blood to wash out a bit, then by lower rubber plug separation in the middle of upper rubber plug and lower rubber plug, the blood that flows out can separate between two rubber plugs, avoid the pollution of treatment environment, simultaneously because be hollow state between two upper rubber plugs and the lower rubber plug, the contact surface with the steel needle is less, also relative light laborsaving when extracting the needle; and simultaneously, the utility model discloses a trocar for disposable dialysis still is provided with the aperture at the sheathed tube front end, thereby can prevent that the sleeve pipe head from leading to treatment in-process blood flow not enough because of pasting with the vascular wall, and the aperture is the cross and arranges and can ensure a plurality of directions no dead angles.
Drawings
FIG. 1 is a cross-sectional view of a disposable trocar for dialysis of the present invention;
fig. 2 is an enlarged schematic view of the head of the bushing of the present invention;
FIG. 3 is a schematic cross-sectional view of the cannula and plug structure after the steel needle has been withdrawn;
fig. 4 is a schematic sectional view of the protection device protecting the head of the steel needle.
Detailed Description
Referring to fig. 1 and 2, the trocar for disposable dialysis of the present invention comprises a steel needle 1, a sleeve 2, a sleeve seat 3, a silicone tube 4, a luer connector 5, a screw cap 6, a rubber plug structure 7, a protection device 8, and a steel needle seat 9, which are sequentially arranged, a rear flared end 21 of the sleeve 2 is thermally melted to connect with a front end socket 31 of the sleeve seat 3, a rear positioning end of the sleeve seat 3 is connected with a front positioning end of the luer connector 5 through the silicone tube 4, two ends of the silicone tube 4 are respectively tightly sleeved on the rear positioning end of the sleeve seat 3 and the front positioning end of the luer connector 5, the rear end of the luer connector 5 is in threaded connection with the screw cap 6, a rear clamping block 61 is arranged at the rear end of the screw cap 6, the rear clamping block 61 is clamped at the front portion of the rubber plug and the rubber plug structure, specifically in this embodiment, the rubber plug structure specifically comprises a rubber plug cover 71 and a rubber plug, the rear clamping block 61 is arranged behind the front end of, the rubber plug is positioned in the cavity and comprises an upper rubber plug 72 and a lower rubber plug 73, the upper rubber plug 72 and the lower rubber plug 73 are respectively in a concave shape, the upper rubber plug 72 and the lower rubber plug 73 respectively comprise a notch, the notch of the upper rubber plug 72 and the notch of the lower rubber plug 73 are oppositely arranged and arranged in the cavity,
the rear end of the rubber plug cover 71 is clamped in the mounting cavity of the protection device 8, the front end of the steel needle seat 9 tightly presses the mounting spigot 81 of the protection device 8, the tail end of the steel needle 1 is connected to the mounting cavity 91 of the steel needle seat, and the front end of the steel needle 1 penetrates through the protection device 8, the rubber plug structure 7, the screw cap 6, the luer connector 5, the silicone tube 4 and the sleeve seat 3 in sequence and then is annularly surrounded by the sleeve 3.
Specifically, a first side convex ring 32 is arranged at the rear positioning end of the cannula base 3, a second side convex ring 51 is arranged at the front positioning end of the luer connector 5, and the silicone tube 4 correspondingly covers the first side convex ring 32 and the second side convex ring 51, so that two ends of the silicone tube 4 are respectively sealed with the cannula base 3 and the luer connector 5.
In addition, the front end of the sleeve 2 is provided with small holes 22, the number of the small holes 22 is four, and the orthographic projections of the four small holes 22 in the axial direction of the sleeve are arranged at intervals of 90 degrees and are in a cross shape.
In addition, an exhaust joint 92 is inserted into the tail end of the steel needle seat 9, and a breathable film 93 is further arranged at the front end of the exhaust joint 92.
The protection device 8 comprises a limiting groove 82 arranged along the radial direction, a limiting block 83 is arranged in the limiting groove 82, a spring 84 is sleeved on the limiting block 83, one end of the spring 84 abuts against the side wall of the limiting groove 83, and the other end of the spring 84 abuts against the steel needle 1.
The head of the steel needle 1 is provided with a limiting part 11, a limiting gasket 85 matched with the limiting part 11 is arranged in the protection device 8, when the steel needle 1 is pulled out from the sleeve 2, the protection device 8 is separated from the rubber plug cover 71, the steel needle 1 is pulled out from the sleeve, then the head of the steel needle is protected by the protection device, the protection device 8 is separated from the steel needle seat 9, the limiting gasket 85 is clamped on the limiting part 11 of the steel needle along with the movement of the protection device 8, meanwhile, due to the pulling-out of the steel needle, the limiting block 83 is bounced to a limiting groove under the action of the elastic force of a spring, the head of the steel needle can be prevented from being exposed out of the protection device, and the separated two parts of structures can be seen in fig. 3 and 4.
Traditional plug form on the market is a solid rubber, and its defect lies in:
1. when the steel needle is pulled out, the contact surface between the steel needle and the rubber plug is too large, so that the steel needle can be pulled out only by using larger strength during operation;
2. because the product is used on dialysis patients and the internal pressure of the whole set of product is relatively high, blood is reserved at the puncture point of the rubber plug at the moment of removing the steel needle, so that the treatment environment is polluted.
The utility model discloses a disposable dialysis trocar plug, it includes upper rubber stopper and lower rubber stopper, the notch of upper rubber stopper and the notch respectively of lower rubber stopper set up relatively, arrange in the cavity, when the steel needle is extracted, the upper rubber stopper has no timely closure to result in blood to wash out a bit in the twinkling of an eye of extracting the needle, then by lower rubber stopper separation in the middle of upper rubber stopper and lower rubber stopper, the blood that flows out can separate between two rubber stoppers, avoid the pollution of treatment environment, simultaneously because be hollow state between two upper rubber stoppers and the lower rubber stopper, the contact surface with the steel needle is less, also relative light laborsaving when extracting the needle;
thereby traditional sleeve pipe head of keeping somewhere the needle often pastes with the vascular wall and takes place to block up on the market, and the route is not smooth, needs medical personnel readjust to keep somewhere the needle angle, for this reason this the utility model discloses a disposable trocar for dialysis still is provided with the aperture at the sheathed tube front end, thereby can prevent that the sleeve pipe head is because of pasting with the vascular wall and lead to treatment in-process blood flow not enough, and the aperture is the cross and arranges and can ensure a plurality of directions no dead angles.
The sleeve pipe and the sleeve pipe seat of the disposable trocar for dialysis of the utility model are connected by using the characteristics of the materials, and are welded together by heating without any bonding auxiliary agent or metal parts for auxiliary connection; the sleeve seat, the silicone tube and the luer connector are connected physically by utilizing good elasticity and wrapping force of the silicone tube, and the silicone has excellent biocompatibility and is safer to use; in conclusion, the positions of the blood vessel and the blood vessel are all in a physical and environment-friendly connection mode when the blood vessel is used, no adhesive is needed, and the safety of a human body is ensured by the connection material when the blood vessel is used.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. Disposable trocar for dialysis, its characterized in that: the rubber plug comprises a steel needle, and a sleeve, a sleeve seat, a silicone tube, a luer connector, a screw cap, a rubber plug structure, a protection device and a steel needle seat which are sequentially arranged, wherein a rear flared end of the sleeve is in hot-melt connection with a front socket of the sleeve seat, a rear positioning end of the sleeve seat and a front positioning end of the luer connector are connected through the silicone tube, two ends of the silicone tube are respectively and tightly sleeved on the rear positioning end of the sleeve seat and the front positioning end of the luer connector, the rear end of the luer connector is in threaded connection with the screw cap, a rear clamping block is arranged at the rear end of the screw cap, the rear clamping block is clamped at the front part of the rubber plug structure, the rear end of the rubber plug structure is clamped in an installation cavity of the protection device, the front end of the steel needle seat is tightly pressed against an installation spigot of the protection device, and the tail end of the steel needle is connected with the installation cavity of the steel needle, the front end of the steel needle penetrates through the protection device, the rubber plug structure, the luer connector, the screw cap, the silicone tube and the sleeve seat in sequence and then is annularly surrounded by the sleeve.
2. The disposable trocar for dialysis as claimed in claim 1, wherein: the rear positioning end of the sleeve seat is provided with a first side convex ring, the front positioning end of the Ruhr joint is provided with a second side convex ring, the silicone tube correspondingly covers the first side convex ring and the second side convex ring, and the silicone tube is enabled to be respectively connected with the sleeve seat and the Ruhr joint in a sealing mode at two ends.
3. The disposable trocar for dialysis as claimed in claim 1, wherein: the rubber plug structure specifically comprises a rubber plug cover and a rubber plug, wherein a rear-end clamping block is arranged at the rear end of the front end of the rubber plug cover to form a cavity, the rubber plug is positioned in the cavity, and the rear end of the rubber plug cover is clamped in an installation cavity of the protection device.
4. The disposable trocar for dialysis as claimed in claim 3, wherein: the rubber plug comprises an upper rubber plug and a lower rubber plug, the upper rubber plug and the lower rubber plug are respectively in a concave shape, the upper rubber plug and the lower rubber plug respectively comprise a notch, and the notch of the upper rubber plug and the notch of the lower rubber plug are oppositely arranged and arranged in the cavity.
5. The disposable trocar for dialysis as claimed in claim 4, wherein: the front end of the sleeve is provided with a small hole.
6. The disposable trocar for dialysis as claimed in claim 5, wherein: the small holes are four, and the orthographic projections of the four small holes in the axial direction of the sleeve are arranged in a cross shape.
7. The disposable trocar for dialysis as claimed in claim 1, wherein: the protection device comprises a limiting groove arranged along the radial direction, a limiting block is arranged in the limiting groove, a spring is sleeved on the limiting block, one end of the spring abuts against the side wall of the limiting groove, and the other end of the spring abuts against the steel needle.
8. The disposable trocar for dialysis as claimed in claim 3, wherein: the head of the steel needle is provided with a limiting part, and a limiting gasket matched with the limiting part is arranged in the protection device.
9. The disposable trocar for dialysis as claimed in claim 1, wherein: and an exhaust joint is inserted at the tail end of the steel needle base.
10. The disposable trocar for dialysis as claimed in claim 9, wherein: the front end of the exhaust joint is also provided with a breathable film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858335.5U CN210812961U (en) | 2019-06-10 | 2019-06-10 | Disposable trocar for dialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858335.5U CN210812961U (en) | 2019-06-10 | 2019-06-10 | Disposable trocar for dialysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210812961U true CN210812961U (en) | 2020-06-23 |
Family
ID=71271806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920858335.5U Withdrawn - After Issue CN210812961U (en) | 2019-06-10 | 2019-06-10 | Disposable trocar for dialysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210812961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051898A (en) * | 2019-06-10 | 2019-07-26 | 端源医疗科技无锡有限公司 | Trochar is used in disposable dialysis |
-
2019
- 2019-06-10 CN CN201920858335.5U patent/CN210812961U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051898A (en) * | 2019-06-10 | 2019-07-26 | 端源医疗科技无锡有限公司 | Trochar is used in disposable dialysis |
| CN110051898B (en) * | 2019-06-10 | 2024-01-26 | 端源医疗科技无锡有限公司 | Disposable trocar for dialysis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4866356B2 (en) | Needleless blood collection device with male connector valve | |
| CN105007975B (en) | Cap | |
| CN101104094A (en) | Safety type artery and venous indwelling needle with airtight interface without needle | |
| CN107405471A (en) | Intravenous catheter component | |
| CN210812961U (en) | Disposable trocar for dialysis | |
| CN110051898B (en) | Disposable trocar for dialysis | |
| CN107334478B (en) | Anti-needle-prick blood sampling device and assembling method | |
| CN200957231Y (en) | Multifunctional medical filter | |
| CN201182826Y (en) | H type safe artery and vein lien needle with non-needle connector positive-pressure enclosed valve | |
| CN107929885B (en) | Insulin syringe needle with closed protection | |
| CN208958955U (en) | The antipollution safe transfusion system of anti-dropout | |
| CN211751526U (en) | Needleless connector with puncture outfit and positive pressure connector | |
| CN101269253A (en) | H type safety needle for remaining in vein and artery with non-needle interface positive pressure air-proof valve | |
| CN211272420U (en) | Hollow capsule with multiple fixing rings | |
| JP2004195181A (en) | Infusion circuit connecting implement, and infusion circuit connecting system | |
| CN201469668U (en) | Infusion bag with two connectors | |
| CN101337105A (en) | I-form arteriovenous indwelling needle with positive pressure function | |
| CN220714512U (en) | Novel anticreep formula transfusion harbor | |
| CN213964645U (en) | Long catheter connecting assembly and indwelling needle | |
| CN219721309U (en) | External cartoon hole type easy-tearing film joint and infusion bag | |
| JP4118598B2 (en) | Seal valve and syringe connection port | |
| CN220344861U (en) | Infusion tube joint and infusion apparatus | |
| CN219783190U (en) | Upper clamping double-film-covering type connector and infusion bag | |
| JP4557769B2 (en) | Mixed injection connector | |
| CN100448496C (en) | Disposable self-destruction safe needle for injection, transfusion and blood transfusion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200623 Effective date of abandoning: 20240126 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200623 Effective date of abandoning: 20240126 |