CN211357375U - Rat rectum sacculus expander - Google Patents
Rat rectum sacculus expander Download PDFInfo
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- CN211357375U CN211357375U CN201921975311.4U CN201921975311U CN211357375U CN 211357375 U CN211357375 U CN 211357375U CN 201921975311 U CN201921975311 U CN 201921975311U CN 211357375 U CN211357375 U CN 211357375U
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Abstract
The utility model provides a rat rectum sacculus expander, including expansion pipe and the sacculus of connection in the most advanced 0.5cm department of distance expansion pipe, the inboard opening of expansion pipe makes atmospheric pressure get into the sacculus in the sacculus, expansion pipe tail end sets up the pipe connector that can dock with the three-way pipe. This rectum sacculus expander helps the accurate change that measures the rat and accepts colorectal dilatation stimulation (CRD) pressure size, withdraw reflection score (AWR) and abdominal rectus muscle Electrograph (EMG) for the belly and detect means such as facilitate, be applicable to model preparation and detection, balloon hypertrophy in the past has been improved greatly and has been blocked up, the drawback of easily causing the damage to rat intestinal wall, and have that the specification is unified, convenient operation, economy and practicability, no side effect, extensive applicability's advantage, can effectively improve experimental efficiency, reduce the experimental time, reduce experimental error.
Description
Technical Field
The utility model relates to a rat rectum sacculus expander belongs to animal experiment instrument field.
Background
With the development of scientific technology, in the field of medicine and pharmacology, animal experiments are experiments often involved in scientific research, and experimental mice are experimental objects commonly used in animal experiments and play an important role in the process of scientific research. The rectal balloon dilator can be used for preparing an animal model with high visceral sensitivity and an important means for detecting the intestinal sensitivity of a rat, is widely applied to various experiments, and is a necessary experimental device for inducing the stimulation of the nociceptive colon and rectum.
The rectum balloon dilator of every laboratory at present stage all is self-control, and the material is poor, does not have unified specification, unified model, and trafficability characteristic and expansibility are all not strong, and reusability is low, and the quality is uneven, and laboratory mouse is painful great, increases system error easily, has caused certain influence for medical experiment. Therefore, a safe and effective rectum balloon dilator with uniform specification and convenient use is urgently needed to improve the experimental efficiency and reduce the error.
SUMMERY OF THE UTILITY MODEL
Not enough to the above-mentioned of prior art, the utility model provides a with strong points, use swiftly portably, safe effectual novel rat rectum sacculus expander.
The utility model discloses a realize through following technical scheme:
a rat rectum balloon dilator comprises an expansion catheter and a balloon connected at a position 0.5cm away from the tip of the expansion catheter, wherein an opening is formed in the inner side of the expansion catheter in the balloon, so that air pressure enters the balloon, and a catheter connecting port capable of being in butt joint with a three-way pipe is arranged at the tail end of the expansion catheter.
The sacculus ware adopts the silica gel material that has good elasticity and toughness, makes things convenient for the pipe to insert, and the foreign matter sense is little, and the front end sacculus is not aerifyd for oval, is globular after the even inflation, and is thin and durable.
The protection tube is arranged outside the dilating catheter to protect the saccule from being squeezed and folded. In use, the balloon protection tube may be withdrawn from the colon to maintain the balloon in the position in which the colon is inflated.
Furthermore, the rat rectal balloon dilator also has the advantages of uniform specification, convenience in operation, economy, no side effect and wide applicability. According to actual operation, the specification of the rectal balloon dilator is measured as follows: the diameter of the protective tube is 3.0mm, the diameter of the dilating catheter is 2.0mm, the unexpanded length of the saccule is 1.0cm, the unexpanded width of the saccule is 2.5mm, the maximum diameter of the saccule during expansion is 1.0cm, the maximum volume is 5mL, the length of the protective tube is 10.0cm, and the length of the dilating catheter is 20.0 cm.
The utility model has the advantages that:
compared with the prior art, because the utility model discloses rat rectum sacculus expander is applicable to 150 supplyes 220 g's rat, help the accurate measurement rat to accept the change of colorectal dilatation amazing (CRD) pressure size, it facilitates to withdraw reflection score (AWR) and detection means such as abdominal rectus muscle Electrograph (EMG) for the belly, be applicable to model preparation and detection, sacculus hypertrophy in the past has been improved greatly and has been blocked up, easily cause the drawback of damage to rat intestinal wall, and it is unified to have the specification, high operation convenience, economy, no side effect, extensive applicability's advantage, can effectively improve experimental efficiency, reduce the experimental time, reduce experimental error. The rectum balloon dilator is not only suitable for rectum dilatation of rats, but also has landmark reference significance for rectum dilatation of mice, and even has guiding significance for colorectal balloon dilatation of animal experiments.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
wherein, the balloon 1, the dilating catheter 2, the protecting tube 3 and the catheter connecting port 4 are connected.
Detailed Description
The following further explains the present invention with reference to the drawings and embodiments. These examples are to be understood as merely illustrative of the present invention and not as limiting the scope of the invention. After reading the description of the present invention, those skilled in the art can make various changes and modifications to the present invention, and these equivalent changes and modifications also fall within the scope of the present invention defined by the claims.
As shown in figure 1, the rat rectal balloon dilator comprises a dilating catheter and a balloon connected at a position 0.5cm away from the tip of the dilating catheter, wherein an opening is formed in the inner side of the dilating catheter in the balloon to enable air pressure to enter the balloon, and a catheter connecting port capable of being in butt joint with a three-way pipe is arranged at the tail end of the dilating catheter.
The sacculus adopts the silica gel material that has good elasticity and toughness, makes things convenient for the pipe to insert, and the foreign body sensation is little, and the front end sacculus is not aerifyd for oval, is globular after evenly aerifing, and is thin and durable.
The protection tube is arranged outside the dilating catheter to protect the saccule from being squeezed and folded. In use, the balloon protection tube may be withdrawn from the colon to maintain the balloon in the position in which the colon is inflated.
According to actual operation, the specifications of the rat rectal balloon dilator are measured as follows: the diameter of the protective tube is 3.0mm, the diameter of the dilating catheter is 2.0mm, the unexpanded length of the saccule is 1.0cm, the unexpanded width of the saccule is 2.5mm, the maximum diameter of the saccule during expansion is 1.0cm, the maximum volume is 5mL, the length of the protective tube is 10.0cm, and the length of the dilating catheter is 20.0 cm.
The dilating catheter with the diameter of 2.0mm and the protecting tube with the diameter of 3.0mm are determined and selected to be suitable for colorectal dilation of rats, the dilating catheter-protecting tube enters the rectum of the rats by about 4cm after being lubricated, the protecting tube is withdrawn from the colon to keep the saccule at the position where the colon is inflated, a dilating catheter connector is connected with the three-way valve, so that an experimenter can hold an injector to supply constant pressure to the saccule, the pressure of the saccule in the rectum can be accurately measured when the experimenter accurately measures the colorectal dilating stimulation (CRD), convenience is brought to subsequent visceral high-sensitivity model preparation, Abdominal Withdrawal Reflex (AWR) scoring, abdominal direct myoelectricity (EMG) and other detection means, and the dilating catheter-protecting tube is suitable for preparing visceral high-sensitivity animal models, model detection scoring and the. The rectum balloon dilator is not only suitable for rectum dilatation of rats, but also has landmark reference significance for rectum dilatation of mice, and even has guiding significance for colorectal balloon dilatation of animal experiments.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (3)
1. A rat rectum balloon dilator is characterized by comprising an expansion catheter and a balloon connected at a position 0.5cm away from the tip of the expansion catheter, wherein the inner side of the expansion catheter in the balloon is provided with an opening to enable air pressure to enter the balloon, the tail end of the expansion catheter is provided with a catheter connecting port capable of being in butt joint with a three-way pipe, a protection pipe is arranged outside the expansion catheter to protect the balloon from being squeezed and folded,
the sacculus is oval when not being inflated, and is spherical after being uniformly inflated.
2. The rat rectal balloon dilator according to claim 1, wherein the balloon is made of silica gel.
3. A rat rectal balloon dilator according to claim 1 in which the rectal balloon dilator is of the specification: the diameter of the protective tube is 3.0mm, the diameter of the dilating catheter is 2.0mm, the unexpanded length of the saccule is 1.0cm, the unexpanded width of the saccule is 2.5mm, the maximum diameter of the saccule during expansion is 1.0cm, the maximum volume is 5mL, the length of the protective tube is 10.0cm, and the length of the dilating catheter is 20.0 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921975311.4U CN211357375U (en) | 2019-11-15 | 2019-11-15 | Rat rectum sacculus expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921975311.4U CN211357375U (en) | 2019-11-15 | 2019-11-15 | Rat rectum sacculus expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211357375U true CN211357375U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921975311.4U Active CN211357375U (en) | 2019-11-15 | 2019-11-15 | Rat rectum sacculus expander |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113647907A (en) * | 2021-08-06 | 2021-11-16 | 温州市人民医院 | Laboratory mouse intestinal sensitivity test equipment |
-
2019
- 2019-11-15 CN CN201921975311.4U patent/CN211357375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113647907A (en) * | 2021-08-06 | 2021-11-16 | 温州市人民医院 | Laboratory mouse intestinal sensitivity test equipment |
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