CN204233193U - Resistance epidural space judgment means in a kind of screw-type pressurize - Google Patents
Resistance epidural space judgment means in a kind of screw-type pressurize Download PDFInfo
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- CN204233193U CN204233193U CN201420620336.3U CN201420620336U CN204233193U CN 204233193 U CN204233193 U CN 204233193U CN 201420620336 U CN201420620336 U CN 201420620336U CN 204233193 U CN204233193 U CN 204233193U
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- cylindrical shell
- push rod
- screw
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Abstract
This utility model discloses resistance epidural space judgment means in a kind of screw-type pressurize, comprise cylindrical shell, push rod and rubber piston, push rod front end with to be placed in cylindrical shell and the rubber piston that can slide along cylinder inboard wall is connected, its feature is offer in the front end of the middle part of cylindrical shell or the top of front portion or cylindrical shell the passage be communicated with cylindrical shell, this passage is communicated with soft object, the horizontal body of rod of push rod is provided with pusher body screw thread, and the corresponding afterbody inwall at cylindrical shell is provided with and can carries out with pusher body screw thread the cylinder screw that is threaded.Push rod is rotated, the pusher body screw thread on push rod and cylinder screw is matched, reaches soft object and keep corresponding size, as continued to increase, can rotating push rod be continued until reach requirement.
Description
Technical field
This utility model relates to a kind of screw thread judging whether puncture needle arrives epidural space and controls drag devices in protective voltage type.
Background technology
Accurate to judge whether puncture needle arrives epidural space be the very crucial step of current epidural Anaesthesia, and puncture needle is crossed dark or crossed and does not shallowly all reach anaesthetic effect! Cross and deeply also can cause Spinal Cord or nerve, as serious also causing death of can not taking measures in time.Current Anesthetists completely by experience by push rod and sleeve frictional resistance lower than or be less than that the injection with low resistance of 0.5N is in use complete to be judged with feel, that is when puncture needle enters subcutaneous tissue, to reach lower resistance push rod pressure when fine and close ligamenta flava is organized larger, discharged when puncture needle penetrates ligament instantaneous pressure, with feeling, doctor only judges that puncture needle enters epidural space, but can't judge completely, now also want pumpback lower resistance push rod such as lower resistance push rod can tentatively judge that position is correct without pressure change.Because buman body type is fat or thin and the difference at age, the index that each cavum epidural puncture operation judges is also different, and this just needs high clinical experience to Anesthetists.
For the problems referred to above, those skilled in the art improve for ordinary syringe, thus solve doctors for many years with feel to judge puncture needle position, and simple to operate, safe and reliable object can be reached.
Summary of the invention
The purpose of this utility model is to provide resistance epidural space judgment means in a kind of simple to operate, safe and reliable screw-type pressurize.
The purpose of this utility model is achieved in that described
resistance epidural space judgment means in screw-type pressurizecomprise cylindrical shell, push rod and rubber piston, push rod front end with to be placed in cylindrical shell and the rubber piston that can slide along cylinder inboard wall is connected, its feature is offer in the front end of the middle part of cylindrical shell or the top of front portion or cylindrical shell the passage be communicated with cylindrical shell, this passage is communicated with soft object, the horizontal body of rod of push rod is provided with pusher body screw thread, and the corresponding afterbody inwall at cylindrical shell is provided with and can carries out with pusher body screw thread the cylinder screw that is threaded.
Described
resistance epidural space judgment means in screw-type pressurizecomprise cylindrical shell, push rod and rubber piston, push rod front end with to be placed in cylindrical shell and the rubber piston that can slide along cylinder inboard wall is connected, its feature is offer in the front end of the middle part of cylindrical shell or the top of front portion or cylindrical shell the passage be communicated with cylindrical shell, this passage is communicated with soft object, the horizontal body of rod of push rod is provided with and can carries out friction tight dop with the inwall of cylindrical shell.
The beneficial effects of the utility model are: exercise soft object before push rod and fill by effects of air pressure, and soft object can be made to keep full by rotating push rod angle, obtain discharging soft object subside instantaneously when puncture needle penetrates ligament instantaneous pressure, reach the position that can judge that puncture needle arrives, thus solve doctors for many years with feel to judge puncture needle position, and simple to operate, safe and reliable object can be reached.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of this utility model.
Fig. 2 is the another kind of structural representation of this utility model.
Fig. 3 is the schematic cross-section that the soft object in structure of the present utility model is communicated with cylinder lumen by passage.
Detailed description of the invention
Below in conjunction with drawings and Examples, operation principle of the present utility model and implementation process are described in detail:
Embodiment 1
As Fig. 1, shown in Fig. 3, this utility model comprises cylindrical shell 4, push rod 1 and rubber piston, push rod 1 front end with to be placed in cylindrical shell 4 and the rubber piston 5 that can carry out piston slip along cylindrical shell 4 inwall is connected, its construction features is offer in the front end of the middle part of cylindrical shell 4 or the top of front portion or cylindrical shell 4 passage 7 be communicated with cylindrical shell, this passage 7 is communicated with soft object 6, the horizontal body of rod of push rod 1 is provided with pusher body screw thread 2, generally can be provided with pusher body screw thread 2 on the postmedian of the horizontal body of rod of push rod 1, the corresponding afterbody inwall at cylindrical shell 4 is provided with and can carries out with pusher body screw thread 2 cylinder screw 3 that is threaded, the cylinder screw 3 of cylindrical shell 4 inwall of the present utility model adopts the pusher body screw thread 2 on this kind of screw-type structure and push rod to match, easily can control soft object by rotating push rod increase or reduce, the push rod soft object that moves ahead can be solved well to be stressed the excessive problem causing push rod rollback, cylindrical shell 4 front end can be connected with puncture needle by screw thread or plug 8.
Embodiment 2
As Fig. 2, shown in Fig. 3, this utility model comprises cylindrical shell 4, push rod 1 and rubber piston 5, push rod 1 front end with to be placed in cylindrical shell 4 and the rubber piston 5 that can slide along cylindrical shell 4 inwall is connected, its construction features is offer passage 7 in the front end of the middle part of cylindrical shell 4 or the top of front portion or cylindrical shell 4, this passage 7 is communicated with soft object 6, the horizontal body of rod of push rod 1 is provided with and can carries out friction tight dop 2-1 with the inwall of cylindrical shell 4, generally can be provided with a circle dop 2-1 on the postmedian of the horizontal body of rod of push rod 1, this utility model employing is provided with a circle and can carries out friction tight dop 2-1 with the inwall of cylindrical shell 4 on the horizontal body of rod of push rod 1, the dop 2-1 on it is made to enter cylindrical shell 4 and carry out tight fit with its inwall by advancing push rod, easily can control soft object to increase, or pull away push rod and easily can control soft object and reduce, the push rod soft object that moves ahead can be solved well to be stressed the excessive problem causing push rod rollback, cylindrical shell 4 front end can be connected with puncture needle by screw thread or plug 8.
A kind of embodiment of the present utility model: be 1. connected with puncture needle by after push rod 1 pumpback 3ml.Bridging mode can be divided into screw thread or stationary fit formula two kinds.2. proceeding to soft object 6 by push rod 1 is stressed full.3. cause the increase that is stressed of soft object that push rod can be caused to retreat because push rod 1 moves ahead, do not reach the object making soft object full, now push rod 1 is rotated, pusher body screw thread 2 on push rod 1 is matched with cylinder screw 3, reach soft object and keep corresponding size, as continued to increase, rotating push rod 1 can be continued until reach requirement.
Claims (2)
1. one kind
resistance epidural space judgment means in screw-type pressurize, comprise cylindrical shell (4), push rod (1) and rubber piston, push rod (1) front end with to be placed in cylindrical shell (4) and the rubber piston (5) that can slide along cylindrical shell (4) inwall is connected, it is characterized in that offering in the front end of the middle part of cylindrical shell (4) or the top of front portion or cylindrical shell (4) passage (7) be communicated with cylindrical shell, this passage (7) is communicated with soft object (6), the horizontal body of rod of push rod (1) is provided with pusher body screw thread (2), the corresponding afterbody inwall at cylindrical shell (4) is provided with and can carries out with pusher body screw thread (2) cylinder screw (3) that is threaded.
2. one kind
resistance epidural space judgment means in screw-type pressurizecomprise cylindrical shell (4), push rod (1) and rubber piston (5), push rod (1) front end with to be placed in cylindrical shell (4) and the rubber piston (5) that can slide along cylindrical shell (4) inwall is connected, it is characterized in that offering in the front end of the middle part of cylindrical shell (4) or the top of front portion or cylindrical shell (4) passage (7) be communicated with cylindrical shell, this passage (7) is communicated with soft object (6), the horizontal body of rod of push rod (1) is provided with and can carries out friction tight dop (2-1) with the inwall of cylindrical shell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620336.3U CN204233193U (en) | 2014-10-23 | 2014-10-23 | Resistance epidural space judgment means in a kind of screw-type pressurize |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620336.3U CN204233193U (en) | 2014-10-23 | 2014-10-23 | Resistance epidural space judgment means in a kind of screw-type pressurize |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204233193U true CN204233193U (en) | 2015-04-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420620336.3U Expired - Fee Related CN204233193U (en) | 2014-10-23 | 2014-10-23 | Resistance epidural space judgment means in a kind of screw-type pressurize |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204233193U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166281A1 (en) * | 2017-03-16 | 2018-09-20 | 于怀庆 | Fluid injection pressure control syringe |
| CN110302451A (en) * | 2018-03-20 | 2019-10-08 | 中国人民解放军总医院 | Puncture detection device |
-
2014
- 2014-10-23 CN CN201420620336.3U patent/CN204233193U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166281A1 (en) * | 2017-03-16 | 2018-09-20 | 于怀庆 | Fluid injection pressure control syringe |
| CN110302451A (en) * | 2018-03-20 | 2019-10-08 | 中国人民解放军总医院 | Puncture detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |