Background
Clinically, lumbar puncture is a common diagnosis and treatment mode of department of neurology, is generally used for carrying out the chemical examination of cerebrospinal fluid sample, has very high clinical practical value, and the puncture in-process often needs to carry out the pressure test of cerebrospinal fluid simultaneously.
Lumbar puncture pressure-measuring pipe that uses among the prior art generally is glassware, generally needs link together two pressure-measuring pipes and uses, operates inconveniently during two pressure-measuring pipe concatenations, moreover between two pipes the problem that cerebrospinal fluid was revealed may appear in concatenation department.
Disclosure of Invention
Not enough to prior art, the utility model aims to provide a lumbar puncture is with contraction type pressure-measuring pipe has solved among the prior art two union couplings of pressure measurement inconvenient, and easily takes place to fall into pieces the problem.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a lumbar puncture is with contraction type pressure-measuring pipe, includes the pressure-measuring pipe, the pressure-measuring pipe includes interior pressure-measuring pipe and outer pressure-measuring pipe, wherein outer pressure-measuring pipe cover is located on the interior pressure-measuring pipe.
The pressure measuring pipe is characterized in that the outer wall of the inner pressure measuring pipe is marked with scale marks, a circular first baffle is fixed on the outer wall of the upper end of the inner pressure measuring pipe, a groove is formed in the outer ring of the first baffle, a sealing ring is installed on the groove, a first external thread is arranged on the outer wall of one side, close to the first baffle, of the inner pressure measuring pipe, a second external thread is arranged on one side, close to the connecting pipe, of the inner pressure measuring pipe, and the first external thread is the same as the second external thread in.
The outer wall superscript of outer pressure-measuring pipe has the scale mark, and outer pressure-measuring pipe inner wall closely laminates with first separation blade through the sealing washer, and outer pressure-measuring pipe is linear motion along the axis direction of interior pressure-measuring pipe, and the lower extreme inner wall fixed mounting of outer pressure-measuring pipe has annular second separation blade, and first internal thread has been seted up to the inner circle of second separation blade, the first external screw thread fit on the first internal thread of second separation blade and the interior pressure-measuring pipe outer wall.
Furthermore, the side face of the lower end of the inner pressure measuring pipe is communicated with a liquid inlet pipe, the axis of the liquid inlet pipe is perpendicular to the axis of the inner pressure measuring pipe, and a liquid inlet valve is arranged on the liquid inlet pipe.
Furthermore, a liquid outlet pipe is installed at the bottom end of the inner pressure measuring pipe and communicated with the bottom end of the inner pressure measuring pipe.
Furthermore, a liquid outlet valve is arranged on the liquid outlet pipe.
Further, drain pipe and interior pressure-measuring pipe coaxial fit, the connecting pipe that screw-thread fit connects is installed to the lower extreme of drain pipe, and connecting pipe lower extreme fixed mounting is on waste liquid recovery case upper surface, and the upper surface of connecting pipe axis and waste liquid recovery case is perpendicular, and the through-hole coaxial with the connecting pipe has been seted up to waste liquid recovery case's upper surface, and waste liquid recovery case's outer wall is provided with the third external screw thread.
Further, an end cover is fixedly arranged on the lower surface of the waste liquid recovery box.
Furthermore, the pressure measuring pipe is sleeved with a storage barrel, and the storage barrel is of a hollow cylindrical structure with one open end.
Furthermore, a flexible tissue is arranged on the inner wall of the containing barrel, a second internal thread is arranged on the inner wall of one end of the opening of the containing barrel, and the second internal thread is matched with a third external thread on the waste liquid recovery box.
The utility model has the advantages that:
1. the outer piezometric tube is sleeved on the inner piezometric tube, and the piezometric tube can be stretched and prolonged only by one medical staff, so that the operation is convenient;
2. the utility model prevents the problem that the waste liquid flows out from the pressure measuring pipe when the medical staff takes off the pressure measuring pipe by arranging the waste liquid recovery box;
3. the utility model discloses a set up the receiver, be provided with flexible tissue in the receiver, can play the effect of the protection of taking precautions against earthquakes with the receiver cover on the pressure-measuring pipe after the pressure measurement is accomplished.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
A contraction type piezometric tube for lumbar puncture is shown in figures 1, 2 and 3 and comprises a piezometric tube 1, wherein the piezometric tube 1 comprises an inner piezometric tube 2 and an outer piezometric tube 3, and the outer piezometric tube 3 is sleeved on the inner piezometric tube 2;
the outer wall of the inner pressure measuring pipe 2 is marked with scale marks, an annular first baffle 21 is fixed on the outer wall of the upper end of the inner pressure measuring pipe 2, an annular groove is formed in the outer ring of the first baffle 21, a sealing ring 22 is installed on the annular groove, a first external thread is arranged on the outer wall of one side, close to the first baffle 21, of the inner pressure measuring pipe 2, a second external thread is arranged on one side, close to the connecting pipe, of the inner pressure measuring pipe 2, and the first external thread and the second external thread have the same parameters;
the outer wall superscript of outer pressure-measuring pipe 3 has the scale mark, and the outer wall of outer pressure-measuring pipe 3 is closely laminated with first separation blade 21 through sealing washer 22, and linear motion is along the axis direction of interior pressure-measuring pipe 2 to outer pressure-measuring pipe 3, and the lower extreme inner wall fixed mounting of outer pressure-measuring pipe 3 has annular second separation blade 31, and first internal thread has been seted up to the inner circle of second separation blade 31, the first external screw-thread fit on the first internal thread of second separation blade 31 and the interior pressure-measuring pipe 2 outer wall.
The side surface of the lower end of the inner pressure measuring pipe 2 is communicated with a liquid inlet pipe 4, the axis of the liquid inlet pipe 4 is vertical to the axis of the inner pressure measuring pipe 2, and a liquid inlet valve 41 is arranged on the liquid inlet pipe 4;
drain pipe 5 is installed to the bottom of interior pressure-measuring pipe 2, drain pipe 5 and interior pressure-measuring pipe 2 intercommunication, drain pipe 5 and interior pressure-measuring pipe 2 coaxial cooperation to the internal diameter external diameter homogeneous phase of drain pipe 5 and interior pressure-measuring pipe 2 still is provided with out liquid valve 51 on the drain pipe 5.
When the pressure measuring pipe is used, the outer pressure measuring pipe 3 slides along the axis direction of the inner pressure measuring pipe 2, when the first internal thread of the second baffle 31 is contacted with the first external thread of the inner pressure measuring pipe 2, the outer pressure measuring pipe 3 is rotated until the upper end face of the second baffle 31 is attached to the lower end face of the first baffle 21, and the outer pressure measuring pipe 3 is fixed on the inner pressure measuring pipe 2;
connect feed liquor pipe 4 with the pjncture needle, close out liquid valve 51, open feed liquor valve 41, cerebrospinal fluid gets into interior pressure-measuring pipe 2 from feed liquor pipe 4, and when the patient cerebral pressure was higher, the cerebrospinal fluid continues to rise to outer pressure-measuring pipe 3, and the doctor reads the scale on interior pressure-measuring pipe 2 or outer pressure-measuring pipe 3 according to the liquid level height.
Connecting pipe 6 that screw-thread fit connected is installed to the lower extreme of drain pipe 5, and 6 lower extreme fixed mounting of connecting pipe are at waste liquid recovery case 7 upper surface, and 6 axes of connecting pipe and waste liquid recovery case 7's last surface vertical, waste liquid recovery case 7's upper surface seted up with the coaxial through-hole of connecting pipe 6, and waste liquid recovery case 7's lower fixed surface installs end cover 8, and waste liquid recovery case 7's outer wall is provided with the third external screw thread.
When the pressure measuring device is used, the end cover 8 is placed on a table top and kept horizontal, the inner pressure measuring pipe 2 and the liquid outlet pipe 5 are perpendicular to the horizontal plane, the pressure measurement is more accurate, the liquid outlet pipe 5 is in threaded fit connection with the connecting pipe 6, the liquid outlet valve 51 is closed, and the pressure measurement is carried out in the pressure measuring step;
after the pressure measurement is finished, the liquid inlet valve 41 is closed, the liquid outlet valve 51 is opened, and the cerebrospinal fluid flows into the waste liquid recovery box 7 along with the liquid outlet pipe 5, so that the cerebrospinal fluid is prevented from flowing out of the pressure measuring pipe 1 when the pressure measuring pipe 1 is recovered;
close out liquid valve 51, rotate outer pressure-measuring pipe 3 and make the first internal thread and the first external screw thread separation of second separation blade 31, withdraw outer pressure-measuring pipe 3 until the first internal thread and the second external screw thread contact of second separation blade 31, rotate outer pressure-measuring pipe 3 and make first internal thread and second external screw thread cooperation be connected for outer pressure-measuring pipe 3 keeps fixed with interior pressure-measuring pipe 2, prevents to damage pressure-measuring pipe 1 because of vibrations.
The pressure measuring pipe 1 is sleeved with a storage barrel 9, as shown in fig. 4, the storage barrel 9 is of a hollow cylindrical structure with one end open, a flexible tissue is installed on the inner wall of the storage barrel 9, the flexible tissue comprises but is not limited to sponge, foam and the like, a second internal thread is arranged on the inner wall of the open end of the storage barrel 9, and the second internal thread is matched with a third external thread on the waste liquid recovery box 7.
After using, locate pressure-measuring pipe 1 with storage tube sleeve 9 on, it makes second internal thread and third external screw thread fit connection to rotate storage tube 9, touch end cover 8 until storage tube 9 bottom, pack whole pressure-measuring pipe 1 into storage tube 9 like this, because be provided with flexible tissue on the storage tube 9 inner wall, prevent that pressure-measuring pipe 1 from dropping and breaking, play the guard action, after lumbar vertebrae puncture operation is accomplished, send pressure-measuring pipe 1 to disinfection supply room cleaning and disinfection in unison, only need open storage tube 9 during the washing, pull down drain pipe 5 from connecting pipe 6, pour the waste liquid in waste liquid recovery case 7, then wash pressure-measuring pipe 1 and waste liquid recovery case 7 can.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.