CN205885899U - Needle is kept somewhere to withstand voltage low resistance batching pig and vein - Google Patents
Needle is kept somewhere to withstand voltage low resistance batching pig and vein Download PDFInfo
- Publication number
- CN205885899U CN205885899U CN201620461981.4U CN201620461981U CN205885899U CN 205885899 U CN205885899 U CN 205885899U CN 201620461981 U CN201620461981 U CN 201620461981U CN 205885899 U CN205885899 U CN 205885899U
- Authority
- CN
- China
- Prior art keywords
- cock body
- batching pig
- resistance
- rear end
- pressure low
- 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- Withdrawn - After Issue
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Abstract
The utility model discloses a needle is kept somewhere to withstand voltage low resistance batching pig and vein, withstand voltage low resistance batching pig includes the rear end cock body respectively according to the puncture direction, middle cock body and front end cock body, wherein, middle cock body has the cavity passageway, the both sides of middle cock body respectively with rear end cock body and front end cock body looks butt, the periphery of at least front end cock body and the inner chamber wall looks interference fit of pipe seat, in pjncture needle puncture back, leave the clearance between the periphery of pjncture needle and the inner wall of cavity passageway, pjncture needle and front end cock body, it connects to be sealed close -fitting between the cock body of rear end. The utility model discloses a middle cock body adopts and joining in marriage of interference fit connects the mode and adopt the UV glue film to carry out secondary fixation, reaches high pressure resistant effect, is applicable to demands such as contrast medium injection, and the area of contact between withstand voltage low resistance batching pig and the pjncture needle is little to reduced frictional force, the plug operation is smooth and easy, can not arouse and quiver a little, effectively prevents to arouse patient's discomfort.
Description
Technical field
This utility model is related to a kind of batching pig, more particularly, to a kind of pressure low-resistance batching pig and venous detaining needle, belongs to
The technical field of medical apparatus and instruments.
Background technology
Venous detaining needle using the misery that patient causes can be reduced because of venipuncture repeatedly and to the fear having an injection,
Mitigate the impatience of family members.
Venous detaining needle is typically made up of catheter combination needle tubing group, and conduit set is by catheter block and the transfusion being arranged at catheter block
Pipe joint forms, and needle tubing group is made up of needle stand and puncture needle, and puncture needle is inserted in catheter block.
In prior art, there is the resistance puncturing for needle tubing from plug in catheter block, traditional resistance is generally holistic from filling in
Silica gel cock body or rubber cock body, it is not firm to connect between flexible material and the inner chamber of catheter block, leads to the resistance to pressure of batching pig
Can be poor.
And increase the pressure performance of batching pig if necessary, that is, need the tail end of batching pig in catheter block in addition to increase solid
Determine mechanism, fixed mechanism is metalwork or working of plastics, the assembling of fixed mechanism is complicated, and installation accuracy requirement is higher, leads to product
Manufacturing cost higher.
Intercept plug and be generally simple cylindrical structure, length is 8cm, leads to the contact surface of puncture needle and rubber cock body
Long-pending larger, during puncture needle plug, between the needle body and rubber stopper, frictional force is larger, operation not easy to plug, can cause during plug micro- quiver,
Easily cause the discomfort of patient.
Utility model content
In view of the defect that above-mentioned prior art exists, the purpose of this utility model is to propose pressure low-resistance batching pig and vein
Remaining needle.
This utility model will be achieved by the following technical programs:
A kind of pressure low-resistance batching pig, is arranged in the catheter block of venous detaining needle, the puncture needle for venous detaining needle is worn
Cross, described pressure low-resistance batching pig includes rear end cock body, middle cock body and front end cock body respectively according to the puncture direction of puncture needle,
Wherein, described middle cock body has the hollow channel passing through for puncture needle, and the internal diameter of described hollow channel is more than to be worn
The external diameter of pricker, the both sides of described middle cock body are abutted with described rear end cock body and described front end plug body phase respectively, at least described
The internal chamber wall phase interference fit of the peripheral and described catheter block of front end cock body,
After described puncture needle runs through described pressure low-resistance batching pig, the peripheral and described hollow channel of described puncture needle
Leave gap between inwall, be sealing close-fitting between described puncture needle and described front end cock body, rear end cock body and connect.
Preferably, there is between described middle cock body and the internal chamber wall of described catheter block uv glue-line, described uv glue-line is respectively
Mutually bonding with described middle cock body, described catheter block.
Preferably, described middle cock body includes the first ring body and the second ring body, described first ring body and described catheter block
It is interference fit, the internal chamber wall of peripheral and described catheter block of described second ring body and the side of described first ring body between internal chamber wall
Form the cannelure room for accommodating uv glue-line between wall.
Preferably, described catheter block has the sprue gate for irrigating uv glue.
Preferably, described rear end cock body is a uncovered flexibility lid, and described rear end cock body is socketed on described middle cock body
In second ring body.
Preferably, between the periphery of described rear end cock body and the internal chamber wall of catheter block it is interference fit.
Preferably, connect for sealing between the uncovered inwall of described rear end cock body and described middle cock body.
Preferably, described front end cock body is 2.5 ~ 3mm along the thickness in the puncture direction of puncture needle.
Preferably, described middle cock body is plastic body, and described front end cock body and rear end cock body are colloidal silica or rubber bodies.
This utility model further discloses a kind of venous detaining needle, and it includes described pressure low-resistance batching pig.
Prominent effect of the present utility model is:
1. middle cock body using the docked mode of interference fit and carries out secondary fixation using uv glue-line, reaches high pressure resistant effect
Fruit it is adaptable to contrast agent injection etc. demand.
2. reduce the contact area between puncture needle and pressure low-resistance batching pig, thus decreasing frictional force, plug behaviour
Make smooth, will not cause micro- quiver, effectively prevent from causing the discomfort of patient；
3. pressure low-resistance batching pig is made up of rear end cock body, middle cock body and front end cock body, and clever structure is reducing contact
While area, ensure the structural strength of pressure low-resistance batching pig, rear end cock body and front end cock body are interference fit simultaneously
Docked mode, further increase the resistance to pressure of batching pig；
4. rear end cock body is socketed on middle cock body, and it is docked with the internal chamber wall phase sealing of catheter block, can ensure resistance to
Force down the overall tightness of resistance batching pig, after puncture needle exits, front end cock body seals as front road, rear end cock body is as rear road
Sealing, the structure of double containment can effectively anti-Hemostatic Oral Liquid backflow and liquid leakage.
Brief description
Fig. 1 is the cross-sectional view of this utility model pressure low-resistance batching pig.
Specific embodiment
Hereinafter just accompanying drawing in conjunction with the embodiments, is described in further detail to specific embodiment of the present utility model, so that this
Utility model technical scheme is more readily understood, grasps.
Pressure low-resistance batching pig and venous detaining needle, as shown in figure 1, pressure low-resistance batching pig is arranged at venous detaining needle
In catheter block 1, the puncture needle 2 for venous detaining needle passes through, and pressure low-resistance batching pig wraps respectively according to the puncture direction of puncture needle 2
Include rear end cock body 3, middle cock body 4 and front end cock body 5, so-called forward and backward be that the position of puncture needle relatively defines, front end be by
Nearly puncture needle tip side, rear end is away from puncture needle tip side, wherein, during middle cock body 4 has and passes through for puncture needle 2
Empty passage 6, this hollow channel 6 is used for making puncture needle pass through, and the internal diameter of hollow channel is more than the external diameter of puncture needle, can ensure puncture
Pin passes through, and prevents from contacting between puncture needle and hollow channel simultaneously, the both sides of middle cock body 4 respectively with rear end cock body 3
And front end cock body 5 abuts against, formed one closely overall, wherein, at least the periphery 51 of front end cock body 5 and catheter block 1 is interior
Cavity wall phase interference fit, in preferred embodiment, the periphery 51 of the periphery of middle-end cock body 4 and front end cock body 5 respectively with catheter block 1
Internal chamber wall phase interference fit, ensured the overall tightness of pressure low-resistance batching pig and pressure performance.
After puncture needle 2 runs through pressure low-resistance batching pig, leave between the inwall of the periphery of puncture needle 2 and hollow channel 6
Gap, is sealing close-fitting and connects between puncture needle 2 and front end cock body 5, rear end cock body 3.The inwall of hollow channel is with puncture needle not
Contact, and front end cock body 5 is 2.5 ~ 3mm along the thickness in the puncture direction of puncture needle, the thickness of rear end cock body is negligible, pole
The big contact area decreasing puncture needle, reduces puncture needle and wears the frictional force connecing, plug operation is smooth, will not cause micro-
Quiver, effectively prevent from causing the discomfort of patient.And the sealing close-fitting between puncture needle 2 and front end cock body 5, rear end cock body 3 connects and is formed
The structure of the double containment of front end and rear end, can effectively anti-Hemostatic Oral Liquid backflow and liquid leakage.
It should be noted that having uv glue-line 10 between middle cock body 4 and the internal chamber wall of catheter block 1, uv glue-line 10 is respectively
Mutually bonding with middle cock body 4, catheter block 1.The interference fit first passing through between middle cock body and the internal chamber wall of catheter block plays
Then middle cock body is carried out secondary effective fixation by uv glue, due to middle cock body and catheter block by tentatively high voltage bearing effect
It is plastic body, uv glue is notable to the adhesive effect of plastic body, further increases the high voltage performance of batching pig, compression resistance energy
Reach 350psi, psi English full name is pounds per square inch.P refers to that a pound pound, s refer to a square square, i
Refer to an inch inch.All of unit is changed into metric unit just can calculate: 1bar ≈ 14.5psi.Can be suitably used for injection to make
Shadow agent, meets the resistance to pressure request of injection contrast agent.
The description that this case is refined, middle cock body 4 includes the first ring body 7 and the second ring body 8, outside the first ring body 7
Enclose between 71 and the internal chamber wall of catheter block 1 for interference fit, the periphery 81 of the second ring body 8 and the internal chamber wall and first of catheter block 1
Form the cannelure room 9 for accommodating uv glue-line between the side wall 72 of ring body 7.This cannelure room provides the sky of injection uv glue
Between, uv glue strengthens the fixed effect to middle cock body, increased resistance to pressure.For ease of the injection of uv glue, catheter block has
For irrigating the sprue gate 11 of uv glue, convenient and swift by this sprue gate injection uv glue, there is positioning action simultaneously.
Rear end cock body is optimized, it is a uncovered flexibility lid, uncovered flexibility lid has edgewise, rear end cock body 3
It is socketed in the second ring body of middle cock body.The structure of flexible lid facilitates supporting between rear end cock body and middle cock body to join
Connect, increased sealing, simultaneously facilitate assembling.Connect for close-fitting between edgewise and cannelure room, make rear end cock body 3 and middle plug
Connect tightr between body and the internal chamber wall of catheter block, increased sealing and resistance to pressure.More preferably, rear end cock body 3 is uncovered
Connect for sealing between inwall and middle cock body 4.It is interference fit between the internal chamber wall of the periphery of rear end cock body 3 and catheter block 1.
Finally, the catheter block 1 in this case is three-way body.Middle cock body 4 is the plastic body of plastic material, plastic body and uv glue
Bonding is firm stable, and is easy to injection mo(u)lding, front end cock body and rear end cock body can for natural rubber, isoprene, tpu,
The mixing of one or more of tpe, pvc, silica gel.
This utility model further comprises a kind of venous detaining needle, which employs pressure low-resistance batching pig of the present utility model.
Above the technical solution of the utility model is fully described, it should be noted that tool of the present utility model
Body embodiment is simultaneously not limited by the description set out above, and those of ordinary skill in the art exists according to spirit of the present utility model
All technical schemes that the aspects such as structure, method or function are formed using equivalents or equivalent transformation, all fall within this reality
Within new protection domain.
Claims (10)
1. a kind of pressure low-resistance batching pig, is arranged in the catheter block of venous detaining needle, the puncture needle for venous detaining needle passes through,
It is characterized in that:
Described pressure low-resistance batching pig includes rear end cock body, middle cock body and front end plug respectively according to the puncture direction of puncture needle
Body,
Wherein, described middle cock body has the hollow channel passing through for puncture needle, and the internal diameter of described hollow channel is more than puncture needle
External diameter, the both sides of described middle cock body are abutted with described rear end cock body and described front end plug body phase respectively, at least described front end
The internal chamber wall phase interference fit of the peripheral and described catheter block of cock body,
After described puncture needle runs through described pressure low-resistance batching pig, the inwall of the peripheral and described hollow channel of described puncture needle
Between leave gap, be between described puncture needle and described front end cock body, rear end cock body sealing close-fitting connect.
2. pressure low-resistance batching pig according to claim 1 it is characterised in that: described middle cock body and described catheter block
There is between internal chamber wall uv glue-line, described uv glue-line is mutually bonding with described middle cock body, described catheter block respectively.
3. pressure low-resistance batching pig according to claim 2 it is characterised in that: described middle cock body include the first ring body and
Second ring body, between described first ring body and the internal chamber wall of described catheter block be interference fit, the periphery of described second ring body with
Form the cannelure room for accommodating uv glue-line between the side wall of the internal chamber wall of described catheter block and described first ring body.
4. pressure low-resistance batching pig according to claim 3 it is characterised in that: have for irrigating uv on described catheter block
The sprue gate of glue.
5. pressure low-resistance batching pig according to claim 3 it is characterised in that: described rear end cock body be a uncovered flexible cover
Body, described rear end cock body is socketed in the second ring body of described middle cock body.
6. pressure low-resistance batching pig according to claim 5 it is characterised in that: the periphery of described rear end cock body and catheter block
Internal chamber wall between be interference fit.
7. pressure low-resistance batching pig according to claim 5 it is characterised in that: the uncovered inwall of described rear end cock body and institute
State and connect for sealing between middle cock body.
8. pressure low-resistance batching pig according to claim 1 it is characterised in that: described front end cock body is along the puncture of puncture needle
The thickness in direction is 2.5 ~ 3mm.
9. pressure low-resistance batching pig according to claim 1 it is characterised in that: described middle cock body be plastic body, described
Front end cock body and rear end cock body are colloidal silica or rubber bodies.
10. a kind of venous detaining needle, including the arbitrary described pressure low-resistance batching pig of such as claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620461981.4U CN205885899U (en) | 2016-05-20 | 2016-05-20 | Needle is kept somewhere to withstand voltage low resistance batching pig and vein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620461981.4U CN205885899U (en) | 2016-05-20 | 2016-05-20 | Needle is kept somewhere to withstand voltage low resistance batching pig and vein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205885899U true CN205885899U (en) | 2017-01-18 |
Family
ID=57765624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620461981.4U Withdrawn - After Issue CN205885899U (en) | 2016-05-20 | 2016-05-20 | Needle is kept somewhere to withstand voltage low resistance batching pig and vein |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205885899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833389A (en) * | 2016-05-20 | 2016-08-10 | 苏州林华医疗器械股份有限公司 | Pressure-resistance low-resistance insulated plug and venous indwelling needle |
-
2016
- 2016-05-20 CN CN201620461981.4U patent/CN205885899U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833389A (en) * | 2016-05-20 | 2016-08-10 | 苏州林华医疗器械股份有限公司 | Pressure-resistance low-resistance insulated plug and venous indwelling needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170118 Effective date of abandoning: 20220118 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170118 Effective date of abandoning: 20220118 |