CN211583389U - Pressure indicating syringe with vesicle protective cover - Google Patents
Pressure indicating syringe with vesicle protective cover Download PDFInfo
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- CN211583389U CN211583389U CN201820968087.5U CN201820968087U CN211583389U CN 211583389 U CN211583389 U CN 211583389U CN 201820968087 U CN201820968087 U CN 201820968087U CN 211583389 U CN211583389 U CN 211583389U
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- vesicle
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- syringe
- protection cover
- pressure indicating
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Abstract
The pressure indicating syringe with the vesicle protection cover comprises a syringe body and a push rod, wherein a branch pipe is arranged on the syringe body, and a sealing vesicle is arranged on the branch pipe; the utility model has the advantages that: the vesicle breakage rate is reduced, the product reject ratio is reduced, the structure is simple, and the use is convenient.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to show pressure syringe with vesicle safety cover.
Background
When the modern medical treatment is used for local or general anesthesia of a patient, the spinal dura mater needs to be punctured first, so that a needle head enters the spinal dura mater external cavity, the puncture is shallow, the spinal dura mater cannot be punctured, and normal anesthesia cannot be performed; deep puncture is easy to damage spinal cord or nerves, and the success of puncture depends on the feeling and experience of operators.
No. 31 of 10 months 31 of 2012, chinese utility model patent that publication number is "CN 202505895U" discloses an "epidural space puncture is with high resistance push rod vesicle indicating syringe", and the device includes its characterized in that of the ware body, syringe needle and push rod: a branch pipe is arranged on the device body or on the device body mouth or on the needle head root, a sealing vesicle is arranged on the branch pipe, the push rod is pushed forward, and the sealing vesicle is expanded, and the following relations are provided: (P1-P0). times.S is less than or equal to Fmax, wherein P1 is the fluid pressure in the sealed vesicle; p0 is atmospheric pressure; s is the projection area of the push rod sealing surface on the cross section of the push rod; fmax is the maximum static friction force between the push rod and the inner wall of the device body, and the relationship is expressed as follows: the push rod is released after pushing forwards and sealing the vesicle to expand, the vesicle is made of elastic or flexible material, is waterproof and airtight, and the branch pipe is arranged on the side wall of the front section of the container body and is communicated with the inner cavity of the container body; as optimization, the branch pipe is arranged on the side wall of the mouth of the device body and is communicated with the inner cavity of the device body; as optimization, the branch pipe is arranged on the side wall of the root part of the needle head and is communicated with the inner cavity of the needle head, the device replaces the hand feeling of people, the vesicle is used for automatically and continuously monitoring pressure change and displaying whether the puncture is successful, the success rate of the puncture is improved, and the convenience in use is also improved. However, the vesicle is easy to damage in the production, assembly or transportation process, and the phenomena of liquid leakage, air leakage and the like can occur during use, so that the epidural anesthesia puncture indication fails.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems and designing a pressure indicating injector with a vesicle protection cover, which is safer, more convenient, and can reduce or avoid the damage of vesicles.
The utility model discloses a solve the technical scheme that its technical problem adopted and be:
comprises a device body and a push rod, wherein the device body is provided with a branch pipe which is provided with a sealing vesicle, and the utility model is characterized in that the front end of the device body is sleeved with a vesicle protection cover.
Above-mentioned show pressure syringe with vesicle safety cover, its characterized in that vesicle safety cover is a "lockhole" shape encloser, and vesicle safety cover inner wall integrated into one piece is equipped with strengthening rib and spacing muscle, and vesicle safety cover head end center department is equipped with the fixed orifices that extends to the outer wall.
Above-mentioned show pressure syringe with vesicle safety cover, its characterized in that the strengthening rib is located the head end inner wall of vesicle safety cover, and the arris edge of strengthening rib is smooth.
Above-mentioned show pressure syringe with vesicle safety cover, its characterized in that spacing muscle is located the tail end inner wall of vesicle safety cover, and the arris edge of spacing muscle is smooth.
The pressure indicating syringe with the vesicle protection cover is characterized in that the inner wall of the vesicle protection cover is smooth.
The utility model has the advantages that:
1. the vesicle breakage rate is reduced, and the product reject ratio is reduced;
2. simple structure and convenient use.
Drawings
FIG. 1 is the overall structure diagram of the present invention
FIG. 2 is a schematic view of the cross-sectional structure of the present invention
Fig. 3 is a schematic structural diagram of the vesicle protection cover of the present invention.
Detailed Description
Pressure syringe with vesicle safety cover, including the ware body 1 and push rod 2, be equipped with a branch pipe 3 on the ware body 2, be equipped with a sealed vesicle 4 on this branch pipe 3, its characterized in that 1 front end of the ware body has cup jointed a vesicle safety cover 5, vesicle safety cover 5 is a "lockhole" shape housing, and 5 inner walls of vesicle safety cover integrated into one piece are equipped with strengthening rib 6 and spacing muscle 7, and 5 head end centers of vesicle safety cover are located and are equipped with the fixed orifices 8 that extend to the outer wall, strengthening rib 6 is located the head end inner wall of vesicle safety cover 5, and the arris of strengthening rib 6 is along smoothly, spacing muscle is located 7 in the tail end inner wall of vesicle safety cover 5, and the arris of spacing muscle 7 are along smoothly, 5 inner walls.
In the production and assembly process, the vesicle protection cover 5 is sleeved at the front end of the device body 1 through the fixing hole 8, the reinforcing rib 6 covers the outer wall of the device body 1 and is in interference fit with the device body 1, so that the vesicle protection cover 5 is more firmly matched with the device body 1 and is not easy to fall off, the vesicle is arranged at the tail end of the vesicle protection cover 5, the position of the vesicle 4 is limited by the limiting rib 7, the vesicle 4 is protected, and the breakage rate of the vesicle 4 is reduced.
Above is the utility model discloses a preferred embodiment, all rely on the utility model discloses the change that technical scheme made, produced functional action does not surpass the utility model discloses during technical scheme's scope, all belong to the utility model discloses a protection.
Claims (4)
1. Pressure syringe with vesicle safety cover, including the ware body and push rod, be equipped with a branch pipe on the ware body, be equipped with a sealed vesicle on this branch pipe, its characterized in that: the front end of the device body is sleeved with a vesicle protection cover, the inner wall of the vesicle protection cover is integrally provided with a reinforcing rib and a limiting rib, and the center of the head end of the protection cover is provided with a fixing hole extending towards the outer wall.
2. A pressure indicating syringe with a vesicular boot as claimed in claim 1, wherein: the strengthening rib is located the head end inner wall of vesicle safety cover, and the arris edge of strengthening rib is smooth.
3. A pressure indicating syringe with a vesicular boot as claimed in claim 1, wherein: the limiting rib is located on the inner wall of the tail end of the vesicle protection cover, and the edge of the limiting rib is smooth.
4. A pressure indicating syringe with a vesicular boot as claimed in claim 1, wherein: the inner wall of the vesicle protection cover is smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820968087.5U CN211583389U (en) | 2018-06-22 | 2018-06-22 | Pressure indicating syringe with vesicle protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820968087.5U CN211583389U (en) | 2018-06-22 | 2018-06-22 | Pressure indicating syringe with vesicle protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211583389U true CN211583389U (en) | 2020-09-29 |
Family
ID=72574654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820968087.5U Active CN211583389U (en) | 2018-06-22 | 2018-06-22 | Pressure indicating syringe with vesicle protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211583389U (en) |
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2018
- 2018-06-22 CN CN201820968087.5U patent/CN211583389U/en active Active
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