CN213249044U

CN213249044U - Central venous pressure dipperstick

Info

Publication number: CN213249044U
Application number: CN202022018348.7U
Authority: CN
Inventors: 潘文妍; 陈彬; 梁丽
Original assignee: Liuzhou Workers Hospital
Current assignee: Liuzhou Workers Hospital
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-05-25
Anticipated expiration: 2030-09-15

Abstract

The utility model provides a central venous pressure measuring scale, including multisection expansion bracket, dipperstick and calibration piece, multisection expansion bracket includes a plurality of nested joints, and the cross section of a plurality of nested joints reduces in proper order, so that a plurality of nested joints can slide each other nestedly, be equipped with between two adjacent nested joints and press spacing flange; the measuring scale is arranged on the nesting joints with the largest cross sections and extends along the sliding direction of the nesting joints; the calibration piece install in on the dipperstick, the calibration piece is equipped with the alignment pole, the alignment pole can with the zero scale mark of dipperstick aligns, and it can save medical personnel's time and physical power, promotes the speed and the precision of measuring the operation.

Description

Central venous pressure dipperstick

Technical Field

The utility model relates to a medical treatment auxiliary instrument technical field, concretely relates to central venous pressure dipperstick.

Background

Central Venous Pressure (CVP) refers to the pressure in the right atrium and the thoracic segments of the superior and inferior vena cava. It can judge the comprehensive condition of blood volume, cardiac function and blood vessel tension of patient, and is different from peripheral venous pressure. The latter is affected by the valves in the venous lumen and other mechanical factors, and therefore cannot reflect the blood volume and cardiac function exactly. The magnitude of the cardiac venous pressure depends on the correlation between the ability of the heart to eject blood and the amount of venous return. If the heart has strong blood ejection capability, the blood returning to the heart can be ejected into the artery in time, and the central venous pressure is low. Conversely, a decrease in ejection capability due to heart failure or the like will result in an increase in central venous pressure. The determination of the central venous pressure is of great significance to the understanding of effective circulating blood volume and cardiac function. Currently, central venous pressure is generally measured by a central venous pressure measurement tube in combination with a measurement ruler.

The method for measuring the central venous pressure commonly used at present has two methods, one is to use a transducer, so that the operation is simple and convenient, the measurement is accurate, and the cost is higher; secondly, the disposable sterile infusion tube is at the same pressure as the atmosphere, the crossing point of the axillary midline and the fourth rib is taken as the measuring zero point, and the measuring ruler is adopted to measure the height of the liquid level in the disposable sterile infusion tube, the method has lower cost and simple and convenient operation, but has the following inconveniences: 1. the measuring scale is an independent graduated scale, and the scale mark needing to keep the zero point is always parallel to the zero point of measurement in the measuring process, so that medical personnel have to hold the measuring scale by hands all the time, the time and the physical strength are consumed, and errors are easy to generate; 2. before measurement, the zero scale of the measuring scale needs to be calibrated and is parallel to the measuring zero point, and the current measuring scale does not have the function, so that medical staff only judges according to experience, and the error of the measuring result is increased.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem that provides, provide a central venous pressure dipperstick, its time and physical power that can save medical personnel promote the speed and the precision of measuring operation.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

a central venous pressure measuring scale comprises a multi-section telescopic frame, a measuring scale and a calibrating piece, wherein the multi-section telescopic frame comprises a plurality of nested joints, the cross sections of the plurality of nested joints are sequentially reduced, so that the plurality of nested joints can be nested in a sliding manner, and a pressing limiting flange is arranged between every two adjacent nested joints; the measuring scale is arranged on the nesting joints with the largest cross sections and extends along the sliding direction of the nesting joints; the calibration piece install in on the dipperstick, the calibration piece is equipped with the alignment pole, the alignment pole can with the zero scale mark of dipperstick aligns.

Further, the measuring scale is arranged on the nesting joint with the largest cross section through an adjusting block, and the measuring scale can slide along the length direction of the adjusting block.

Furthermore, one side of the adjusting block is connected with the nesting joint with the largest cross section and extends along the length direction of the nesting joint, a sliding groove is formed in the adjusting block, and the measuring scale is inserted into the sliding groove in a sliding mode.

Furthermore, the calibration piece comprises a rotating shaft and a rod leveling tube, the rotating shaft is rotatably arranged on the side edge of the measuring scale, one end of the calibration rod is connected with the rotating shaft, the other end of the calibration rod extends in the direction far away from the rotating shaft, the rotating shaft can drive the calibration rod to rotate to the position vertical to the side edge of the measuring scale, and at the moment, the top surface of the calibration rod is aligned with the zero scale mark of the measuring scale; the rod part leveling tube is arranged on the calibration rod so as to judge whether the calibration rod is parallel to the horizontal plane or not in the state that the calibration rod is vertical to the side edge of the measuring scale.

Furthermore, the calibration piece also comprises a calibration line, an operation block and a line part leveling tube, the calibration line is wound on one end, deviating from the rotating shaft, of the calibration rod, the operation block is connected with one end, deviating from the calibration rod, of the calibration line, the operation block is detachably connected with the calibration rod towards one end of the calibration rod, and the line part leveling tube is arranged on the operation block.

Further, one end of the operation block facing the calibration rod and one end of the calibration rod departing from the rotating shaft are detachably connected through a magnet.

Further, the central venous pressure dipperstick still includes horizontal displacement frame, horizontal displacement frame includes fixation clamp, locating clip and displacement axle, the fixation clamp is fixed to be located on the displacement axle, the locating clip is located with sliding on the displacement axle, the fixation clamp can with the displacement axle is fixed in on the bed body, multisection expansion bracket with the locating clip is connected, the dipperstick with the displacement axle is perpendicular.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. above-mentioned central venous pressure dipperstick, a plurality of is nested can be enough to slide each other nestedly and the dipperstick is installed on the biggest nestification festival of cross section, and the application of force can be stretched in proper order a plurality of nestification festival in the biggest nestification festival of cross section, in order to play the effect of adjusting multisection expansion bracket length, thereby can adjust the position of dipperstick on the direction of height, make the zero point scale mark of dipperstick adjust to one through multisection expansion bracket and measure the parallel position at zero point, save medical personnel's time and physical power. In addition, the alignment pole can align with the zero scale mark of dipperstick, and when the zero scale mark displacement of dipperstick was to measuring zero point, can judge through the alignment pole, promoted the speed and the precision of measuring operation.

2. The dipperstick can slide along the length direction of adjusting block, can finely tune the zero point scale mark of dipperstick, further guarantees that the zero point scale mark of dipperstick is parallel with measurement zero point.

3. When the calibration rod is far away from the patient, force can be applied to the operation block to pull the calibration rod out towards the direction of the patient, the calibration line is confirmed to be kept on the same straight line with the top surface of the calibration rod through the rod part leveling tube and the line part leveling tube, and then the zero scale line of the measuring scale is further adjusted to be parallel to the measuring zero point.

Drawings

Fig. 1 is a schematic structural view of a central venous pressure measuring ruler according to a preferred embodiment of the present invention.

Fig. 2 is a schematic structural view of fig. 1 from another view angle.

In the attached drawing, 1-a plurality of sections of telescopic frames, 11-a nested section, 12-a pressing limit flange, 13-a clamping hole, 2-a measuring scale, 3-a calibrating piece, 31-a calibrating rod, 32-a rotating shaft, 33-a rod part leveling tube, 34-a calibrating line, 35-an operating block, 36-a line part leveling tube, 4-an adjusting block, 5-a horizontal displacement frame, 51-a fixing clamp, 511-an installation block, 512-a bolt, 513-a U-shaped clamping groove, 52-a positioning clamp, 521-a positioning block, 522-a locking bolt, 523-a U-shaped locking groove and 53-a displacement shaft.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 2, a preferred embodiment of the present invention provides a central venous pressure measuring ruler, which comprises a multi-section telescopic frame 1, a measuring ruler 2 and a calibrating member 3. The multi-section telescopic frame 1 comprises a plurality of nested sections 11, the cross sections of the nested sections 11 are sequentially reduced, so that a plurality of nesting joints 11 can be nested in a sliding way, a pressing limit flange 12 is arranged between two adjacent nesting joints 11, specifically, in two adjacent nesting joints 11, the nesting joint 11 with smaller cross section is provided with a pressing limit flange 12, the nesting joint 11 with larger cross section is provided with a clamping hole 13, when the nesting joint 11 with larger cross section slides relative to the nesting joint 11 with smaller cross section, the nesting joint 11 with larger cross section generates pressure to the pressing limit flange 12 to enable the nesting joints 11 of two adjacent parts to generate relative sliding, when the clamping hole 13 slides to correspond to the pressing limiting flange 12, the pressing limiting flange 12 is clamped in the clamping hole 13 without being pressed, so that the two adjacent nested joints 11 are prevented from moving relatively; the plurality of nesting joints 11 can slide mutually to adjust the length of the multi-joint telescopic frame 1. The measuring scale 2 is arranged on the nesting joint 11 with the largest cross section and extends along the sliding direction of the nesting joints 11. The calibration piece 3 is installed on dipperstick 2, and calibration piece 3 is equipped with alignment rod 31, and alignment rod 31 can align with the zero scale mark of dipperstick 2.

Above-mentioned central venous pressure dipperstick, nested and dipperstick 2 that a plurality of nested festival 11 can slide each other is installed on the biggest nested festival 11 of cross section, the application of force is when the biggest nested festival 11 of cross section, can stretch a plurality of nested festival 11 in proper order, in order to play the length of adjusting multisection expansion bracket 1, thereby can adjust dipperstick 2 position on the direction of height, make the zero point scale mark of dipperstick 2 adjust to one through multisection expansion bracket 1 and measure the parallel position at zero point, save medical personnel's time and physical power. In addition, the calibration rod 31 can be aligned with the zero scale line of the measuring scale 2, and when the zero scale line of the measuring scale 2 is displaced to the measuring zero point, the zero scale line can be judged through the calibration rod 31, so that the speed and the accuracy of the measuring operation are improved.

In this embodiment, dipperstick 2 is installed in the biggest nested festival 11 of cross section through an adjusting block 4, and dipperstick 2 can slide along the length direction of adjusting block 4, and is concrete, and one side of adjusting block 4 is connected with the biggest nested festival 11 of cross section and extends along the length direction of nested festival 11, is equipped with the sliding tray on the adjusting block 4, and dipperstick 2 is pegged graft into in the sliding tray with sliding to make dipperstick 2 can slide along the length direction of sliding tray. When dipperstick 2 slided along the length direction of adjusting block 4, can finely tune dipperstick 2's zero point scale mark, further guarantee that dipperstick 2's zero point scale mark is parallel with measurement zero point.

In the present embodiment, the calibration member 3 includes a rotating shaft 32 and a rod level tube 33. The rotating shaft 32 is rotatably installed on the side of the measuring scale 2, one end of the calibrating rod 31 is connected with the rotating shaft 32, the other end of the calibrating rod 31 extends in the direction away from the rotating shaft 32, the rotating shaft 32 can drive the calibrating rod 31 to rotate to the position perpendicular to the side of the measuring scale 2, and at the moment, the top surface of the calibrating rod 31 is aligned with the zero scale mark of the measuring scale 2; when the calibration bar 31 is not used, the rotation shaft 32 is rotated to rotate the calibration bar 31 in a state parallel to the side of the measuring scale 2. The rod level tube 33 is installed on the leveling rod 31 to determine whether the top surface of the leveling rod 31 is parallel to the horizontal plane in a state where the leveling rod 31 is perpendicular to the side of the measuring ruler 2.

In the present embodiment, the calibration piece 3 further includes a calibration line 34, an operation block 35, and a line portion level tube 36. The calibration line 34 is wound on one end of the calibration rod 31 away from the rotating shaft 32, specifically, the calibration line 34 is wound on one end of the calibration rod 31 away from the rotating shaft 32 through a spring, and one end of the calibration line 34 away from the rotating shaft 32 can be pulled out in a direction away from the ground under stress; when the calibration bar 31 is rotated to a position perpendicular to the side of the measuring tape 2, the calibration line 34 is pulled out from the calibration bar 31, and the calibration line 34 is located on the same horizontal plane as the top surface of the calibration bar 31. An operating block 35 is connected to an end of the alignment wire 34 remote from the alignment rod 31, an end of the operating block 35 facing the alignment rod 31 is detachably connected to the alignment rod 31, and a wire section level tube 36 is mounted on the operating block 35. When the alignment rod 31 is far from the patient, the operation block 35 is urged to pull it out in the direction of the patient, and after confirming that the alignment line 34 is aligned with the top surface of the alignment rod 31 and parallel to the horizontal plane by the rod portion leveling tube 33 and the line portion leveling tube 36, the zero scale line of the measuring scale 2 is further adjusted to a position parallel to the zero point of measurement, and it is seen that the setting of the alignment line 34 can further reduce the error of the measurement result.

In this embodiment, the end of the operation block 35 facing the calibration rod 31 and the end of the calibration rod 31 facing away from the rotation shaft 32 are detachably connected through a magnet, specifically, a positive pole magnet is disposed at the end of the operation block 35 facing the calibration rod 31, and a negative pole magnet is disposed at the end of the calibration rod 31 facing away from the rotation shaft 32.

In the present embodiment, the central venous pressure measuring scale further includes a horizontal displacement frame 5, and the horizontal displacement frame 5 includes a fixing clip 51, a positioning clip 52, and a displacement shaft 53. The fixing clips 51 are fixedly arranged on the displacement shaft 53, the positioning clips 52 are slidably arranged on the displacement shaft 53, specifically, the number of the fixing clips 51 is two, the number of the positioning clips 52 is one, and the positioning clips 52 are positioned between the two fixing clips 51. The fixing clamp 51 can fix the displacement shaft 53 on the bed body, specifically, the fixing clamp 51 comprises mounting blocks 511 and bolts 512, and one end of the mounting block 511 of the two fixing clamps 51 is respectively fixed at two opposite ends of the displacement shaft 53; the other end of installation piece 511 is equipped with a U type draw-in groove 513, and in installation piece 511 and the U type draw-in groove 513 of screw thread were passed with the bolt 512 rotation, U type draw-in groove 513 can the joint on the bed body, can be fixed in the bed body with the bolt 512 towards the inside rotation of U type draw-in groove 513 on the fixed clamp 51.

The multi-section telescopic frame 1 is connected with the positioning clamp 52, specifically, the positioning clamp 52 comprises a positioning block 521 and a locking bolt 522, one end of the positioning block 521 is provided with a slide way in a penetrating manner, the displacement shaft 53 is arranged in a penetrating manner through the slide way, the other end of the positioning block 521 is provided with a U-shaped locking groove 523, the U-shaped locking groove 523 is communicated with the slide way, the locking bolt 522 is screwed into the U-shaped locking groove 523 from one end of the positioning block 521, which is far away from the slide way, and when the locking bolt 522 abuts against the displacement shaft 53, the positioning block 521 does not rotate or slide relative to the displacement shaft 53 any; the nested joint 11 with the smallest cross section in the multi-section telescopic frame 1 is fixedly connected with one end of the positioning block 521 away from the locking bolt 522. The measuring scale 2 is perpendicular to the displacement axis 53.

When the bed is used, the U-shaped clamping groove 513 is clamped on the bed body, the bolt 512 is screwed towards the bed body, and the displacement shaft 53 is fixed on the bed body through the fixing clamp 51. The positioning block 521 is rotated to make the socket joint 11 with the smallest cross section in the multi-section telescopic frame 1 perpendicular to the horizontal plane, the positioning block 521 is moved along the displacement shaft 53 to move the measuring scale 2 to a position corresponding to the zero point of measurement, and the locking bolt 522 is screwed towards the displacement shaft 53 and abuts against the displacement shaft 53, so that the positioning block 521 is fixed. Force is applied to the nested joint 11 with the largest cross section, and the nested joint is pulled towards the direction departing from the positioning block 521, so that the length of the multi-section telescopic frame 1 is stretched, and when the zero point scale line of the measuring scale 2 is approximately parallel to the measuring zero point, the multi-section telescopic frame 1 is stopped to be stretched. The leveling rod 31 is rotated to a position perpendicular to the side of the measuring scale 2 by the rotating shaft 32 and the level of the leveling rod 31 is leveled by the rod leveling tube 33. The operation measuring scale 2 slides along the sliding groove of the adjusting block 4, the sliding of the measuring scale 2 is stopped when the top surface of the calibrating rod 31 corresponds to the measurement zero point position, and then, the measurement of the central venous pressure of the patient can be started.

It is understood that the operator may further use the calibration line 34, the operation block 35 and the line portion leveling tube 36 to calibrate the measurement zero point as required, and the calibration method is mentioned above and will not be described herein again.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. A central venous pressure dipperstick which characterized in that: the multi-section telescopic frame comprises a multi-section telescopic frame (1), a measuring scale (2) and a calibration piece (3), wherein the multi-section telescopic frame (1) comprises a plurality of nested joints (11), the cross sections of the plurality of nested joints (11) are sequentially reduced, so that the plurality of nested joints (11) can be nested in a sliding manner, and a pressing limiting flange (12) is arranged between every two adjacent nested joints (11); the measuring scale (2) is arranged on the nesting joints (11) with the largest cross section and extends along the sliding direction of the nesting joints (11); the calibration piece (3) install in on dipperstick (2), calibration piece (3) are equipped with alignment rod (31), alignment rod (31) can with the zero scale mark of dipperstick (2) aligns.

2. The central venous pressure measurement ruler of claim 1, wherein: the measuring scale (2) is arranged on the embedding joint (11) with the largest cross section through an adjusting block (4), and the measuring scale (2) can slide along the length direction of the adjusting block (4).

3. The central venous pressure measurement ruler of claim 2, wherein: one side of the adjusting block (4) is connected with the nesting joint (11) with the largest cross section and extends along the length direction of the nesting joint (11), a sliding groove is formed in the adjusting block (4), and the measuring scale (2) is inserted into the sliding groove in a sliding manner.

4. The central venous pressure measurement ruler of claim 1, wherein: the calibrating piece (3) comprises a rotating shaft (32) and a rod part leveling tube (33), the rotating shaft (32) is rotatably arranged on the side edge of the measuring scale (2), one end of the calibrating rod (31) is connected with the rotating shaft (32), the other end of the calibrating rod (31) extends in the direction far away from the rotating shaft (32), the rotating shaft (32) can drive the calibrating rod (31) to rotate to the position vertical to the side edge of the measuring scale (2), and at the moment, the top surface of the calibrating rod (31) is aligned with a zero scale mark of the measuring scale (2); the rod leveling tube (33) is arranged on the calibration rod (31) so as to judge whether the calibration rod (31) is parallel to the horizontal plane or not in the state that the calibration rod (31) is perpendicular to the side edge of the measuring scale (2).

5. The central venous pressure measurement ruler of claim 4, wherein: the calibrating piece (3) further comprises a calibrating line (34), an operating block (35) and a line part leveling tube (36), the calibrating line (34) is wound at one end, deviating from the rotating shaft (32), of the calibrating rod (31), the operating block (35) is connected with one end, deviating from the calibrating rod (31), of the calibrating line (34), one end, facing the calibrating rod (31), of the operating block (35) is detachably connected with the calibrating rod (31), and the line part leveling tube (36) is installed on the operating block (35).

6. The central venous pressure measurement ruler of claim 5, wherein: one end of the operating block (35) facing the calibration rod (31) is detachably connected with one end of the calibration rod (31) departing from the rotating shaft (32) through a magnet.

7. The central venous pressure measurement ruler of claim 1, wherein: the central venous pressure dipperstick still includes horizontal displacement frame (5), horizontal displacement frame (5) are including fixation clamp (51), locating clip (52) and displacement axle (53), fixation clamp (51) are fixed to be located on displacement axle (53), locating clip (52) are located with sliding on displacement axle (53), fixation clamp (51) can with displacement axle (53) are fixed in on the bed body, multisection expansion bracket (1) with locating clip (52) are connected, dipperstick (2) with displacement axle (53) are perpendicular.