CN202859379U - Rat epidural catheter - Google Patents
Rat epidural catheter Download PDFInfo
- Publication number
- CN202859379U CN202859379U CN 201220575502 CN201220575502U CN202859379U CN 202859379 U CN202859379 U CN 202859379U CN 201220575502 CN201220575502 CN 201220575502 CN 201220575502 U CN201220575502 U CN 201220575502U CN 202859379 U CN202859379 U CN 202859379U
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- CN
- China
- Prior art keywords
- catheter
- conduit
- rat
- epidural
- anterior
- 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 - Lifetime
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Abstract
The utility model provides a rat epidural catheter, and relates to the field of medical apparatus and instruments. Length of the catheter is 6-8cm. The rat epidural catheter comprises a front catheter, a middle catheter and a back catheter. Length of the front catheter is 2-3cm, the front end of the front catheter is provided with weeping holes, and the back end of the front catheter is provided with the middle catheter. The front catheter is connected with the middle catheter through a buffering fixing ring. The back end of the middle catheter is provided with the back catheter, and the middle catheter is connected with the back catheter through a buffering fixing ring. The back end of the back catheter is provided with a connector. Inner diameters of the front catheter, the middle catheter and the back catheter are 0.28-0.32mm. The number of the weeping holes is 4-6. The rat epidural catheter has the advantages that inserted length of the catheter is clear, the rat epidural catheter is beneficial to diffusion of medical liquid, possibilities of catheter plugging are reduced, impact force of liquid is lightened, the rat epidural catheter is fixed and reliable, and the rat epidural catheter can be connected with a common injector or a micro injector or a micro pump to inject medicine.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of epidural catheter for rats.
Background technology
At present; because of simple to operate; price is low; research epidural anesthesia mechanism normal operation is tested by rat; pharmacology, physiology and toxicity reaction thereof by row rat epidural anesthesia research local anaesthetics also can be used for the research of general anesthesia compound epidural block, simple epidural anesthesia and epidural anesthesia organ protection.The existing common conduit that is used for the epidural catheter of rat epidural anesthesia process is individual making, its internal diameter thickness differs, also need in use to add middle device and medicinal liquid could be injected the rat epidural space, and there is not scale on the conduit, can't clearly insert the catheter length in the rat epidural space and determine the retardance sections, the whole internal diameter of conduit is consistent, insert overlong time because of conduit and the plugging phenomenon that causes because of blood clotting very easily occurs, the while single catheter is inserted rear fixing not firm, takes off the pipe probability and strengthens.
The utility model content
This utility model is for the prior art above shortcomings, novel a kind of epidural catheter for rats is provided, insert the rat epidural space with anterior conduit, the length that anterior supravasal scale can clearly be inserted, while is at the buffering retainer ring of conduit junction, internally play the effect of pressure-reducing cushioning, externally play the effect of A/C.The rear portion joint can directly connect clinical in ordinary syringe, microsyringe or micro pump.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of epidural catheter for rats, described catheter length is 6-8cm, comprise anterior conduit, middle part conduit, rear duct, described anterior conduit is long to be 2-3cm, and front end is provided with the leakage aperture, and described anterior rear end of conduit is provided with the middle part conduit, described anterior conduit is connected with the middle part conduit by the buffering retainer ring, described middle part rear end of conduit is provided with rear duct, and described middle part conduit also is connected with rear duct by the buffering retainer ring, and described rear duct rear end is provided with joint.
Described anterior conduit, middle part conduit, rear duct internal diameter are 0.28-0.32mm.
Described liquid-leaking nozzle is 4-6.
This utility model beneficial effect: clear and definite conduit is inserted length, is beneficial to the medicinal liquid diffusion, reduces the plugging possibility, alleviates hydraulic shock power, and is fixing reliable, can directly connect ordinary syringe, microsyringe or micro pump injection.
Description of drawings
Fig. 1 is epidural catheter for rats structural representation described in the utility model.
Among the figure:
1-cushions retainer ring; The anterior conduit of 2-; 3-middle part conduit; The 4-rear duct; The 5-scale; The 6-liquid-leaking nozzle; The 7-joint.
The specific embodiment
The below is described in further detail this utility model with embodiment with reference to the accompanying drawings:
As shown in Figure 1, a kind of epidural catheter for rats of the present utility model, comprise conduit, described conduit total length is 6-8cm, integral duct length fixedly is convenient to the standard making, described conduit comprises anterior conduit 2, middle part conduit 3, rear duct 4, described anterior conduit 2, be equipped with scale 5 on middle part conduit 3 and the rear duct 4, the conduit accuracy of scale is to 0.5cm or 1mm, the conduit scale can be inserted length by clear and definite conduit, described anterior conduit 2 length are 2-3cm, described anterior conduit 2 front ends are provided with 4-6 leakage aperture 6, leakage aperture 6 is used for spilling medicinal liquid to the rat epidural space, described anterior conduit 2 rear ends are provided with middle part conduit 3, described anterior conduit 2 is connected with middle part conduit 3 by buffering retainer ring 1, the effect to medicinal liquid compensator or trimmer pressure and then minimizing medicinal liquid impulse force is played in the inside of buffering retainer ring 1, and the outside effect of playing A/C, conduit 3 rear ends, described middle part are provided with rear duct 4, described middle part conduit 3 is connected with rear duct 4 by buffering retainer ring 1, described buffering retainer ring is 2, be respectively applied to be fixedly connected with anterior conduit 2 and middle part conduit 3 and middle part conduit 3 and rear duct 4, described rear duct 4 rear ends are provided with joint 7, and the diameter of joint 7 can directly connect more greatly the injection port of syringe.
During use, anterior conduit 2 is placed to the rat epidural space, but scale 5 Self-adjustments of observing on the anterior conduit 2 are inserted the length of conduit, by buffering retainer ring 1 conduit is fixed, then the joint on rear duct 47 directly is connected with the injection port of syringe, medicinal liquid is injected directly in the conduit, because the internal damping effect of buffering retainer ring 1, can alleviate medicinal liquid to the direct impact of nerve root and spinal cord, behind the liquid medicine injection, because anterior conduit 2, middle part conduit 3, rear duct 4 and buffering retainer ring internal diameter are thinner, so the amount of liquid medicine of staying in the conduit behind the input medicinal liquid is few, make the injection amount more accurate.After using, the threeway cap closure joint 7 with common makes manifold pressure constant, avoid the liquid return such as blood, medicinal liquid and cause the conduit obstruction, or extraneous air and pollutant enters epidural space and causes infection through conduit.
Claims (3)
1. epidural catheter for rats, it is characterized in that: described catheter length is 6-8cm, comprise anterior conduit, middle part conduit, rear duct, described anterior conduit is long to be 2-3cm, and front end is provided with the leakage aperture, and described anterior rear end of conduit is provided with the middle part conduit, described anterior conduit is connected with the middle part conduit by the buffering retainer ring, described middle part rear end of conduit is provided with rear duct, and described middle part conduit also is connected with rear duct by the buffering retainer ring, and described rear duct rear end is provided with joint.
2. a kind of epidural catheter for rats as claimed in claim 1, it is characterized in that: described anterior conduit, middle part conduit, rear duct internal diameter are 0.28-0.32mm.
3. a kind of epidural catheter for rats as claimed in claim 1, it is characterized in that: described liquid-leaking nozzle is 4-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575502 CN202859379U (en) | 2012-11-05 | 2012-11-05 | Rat epidural catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575502 CN202859379U (en) | 2012-11-05 | 2012-11-05 | Rat epidural catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202859379U true CN202859379U (en) | 2013-04-10 |
Family
ID=48026144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220575502 Expired - Lifetime CN202859379U (en) | 2012-11-05 | 2012-11-05 | Rat epidural catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202859379U (en) |
-
2012
- 2012-11-05 CN CN 201220575502 patent/CN202859379U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
|
| CX01 | Expiry of patent term |