CN218606585U - Central venous pressure measuring ruler - Google Patents

Abstract

The utility model discloses a central venous pressure measuring scale, belonging to the field of medical instruments, which comprises a scale main body and a fixed shell; the two fixed shells are respectively sleeved at the upper end and the lower end of the scale main body; the front side surface of the fixed shell is provided with a fixed component; the leading flank of scale main part is equipped with the first recess that is used for placing the pressure-measuring pipe, first recess runs through the upper surface and the lower surface of scale main part, the leading flank of fixed casing is equipped with the second recess that is used for placing the pressure-measuring pipe, the second recess runs through the upper surface and the lower surface of fixed casing, second recess and first recess intercommunication, fixed subassembly includes the activity briquetting, the one end of activity briquetting articulates in fixed casing, the other end and fixed casing swing joint, and the fixed orifices that is used for fixed pressure-measuring pipe is injectd jointly to the activity briquetting and second recess. Adopt above-mentioned design, can with the quick dismouting of pressure-measuring pipe on this central venous pressure dipperstick, labour saving and time saving helps promoting medical personnel's work efficiency.

Description

Central venous pressure dipperstick

Technical Field

The utility model belongs to the technical field of medical instrument, in particular to central venous pressure dipperstick.

Background

The central venous pressure is the pressure of the superior vena cava and the inferior vena cava entering the right atrium, is measured through the superior vena cava, the inferior vena cava or a right atrial internal catheter, can well reflect the right atrial pressure, and is one of the main indexes for clinical observation of hemodynamics. Generally, the blood pressure in the right atrium and the big thoracic vein is referred to as the central venous pressure. Central venous pressure measurement is a common practice in clinical care settings.

At present, in hospitals, medical staff generally use a central venous pressure measuring ruler, an infusion apparatus and physiological saline to manually measure the central venous pressure after finishing the work of placing a central venous catheter. However, when the central venous pressure measuring scale is used, medical staff need to arrange a pressure measuring tube along the length direction of the embedded groove of the central venous pressure measuring scale, the length of the embedded groove of the central venous pressure measuring scale is long, and the medical staff extrude the pressure measuring tube into the embedded groove of the central venous pressure measuring scale in an extrusion mode, so that time and labor are wasted, and the work efficiency is not favorably improved; moreover, the piezometric tube is not easy to take out from the embedded groove.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a central venous pressure dipperstick to solve one or more technical problem that exist among the prior art.

The technical scheme adopted for solving the technical problems is as follows:

the utility model discloses a central venous pressure measuring scale, which comprises a scale main body and a fixed shell; the two fixed shells are respectively sleeved at the upper end and the lower end of the scale main body; a fixing component is arranged on the front side surface of the fixing shell; the utility model discloses a pressure-measuring pipe, including scale main part, first recess, fixed casing, second recess, fixed subassembly, fixed casing, other end and fixed casing swing joint, the leading flank of scale main part is equipped with the first recess that is used for placing the pressure-measuring pipe, first recess runs through the upper surface and the lower surface of scale main part, the leading flank of fixed casing is equipped with the second recess that is used for placing the pressure-measuring pipe, the second recess runs through the upper surface and the lower surface of fixed casing, second recess and first recess intercommunication, fixed subassembly includes the activity briquetting, the one end of activity briquetting articulates in fixed casing, other end and fixed casing swing joint, and the fixed orifices that is used for fixed pressure-measuring pipe is injectd jointly to activity briquetting and second recess.

The utility model discloses following beneficial effect has at least: the ruler main body is provided with a first groove, the fixing shell sleeved on the ruler main body is provided with a second groove, the second groove is communicated with the first groove, the fixing shell is provided with a fixing assembly, the fixing assembly comprises a movable pressing block, one end of the movable pressing block is hinged to the fixing shell, the other end of the movable pressing block is movably connected with the fixing shell, and the first groove and the second groove are larger than the pressure measuring pipe; the connecting effect of the other end of the movable pressing block and the fixed shell is relieved, and the movable pressing block is driven to rotate around the hinged position of the movable pressing block and the fixed shell, so that medical personnel can take out the pressure measuring pipe from the first groove and the second groove directly; so design, can with the quick dismouting of pressure-measuring pipe on this central venous pressure dipperstick, labour saving and time saving helps promoting medical personnel's work efficiency.

As a further improvement of the above technical solution, the fixing assembly further comprises a first torsion spring; the movable pressing block is hinged to the fixed shell through a first hinged shaft, the first torsion spring is sleeved on the first hinged shaft, one end of the first torsion spring is connected with the movable pressing block, and the other end of the first torsion spring is connected with the fixed shell.

A first torsion spring is arranged on a first hinge shaft between the movable pressing block and the fixed shell, two ends of the first torsion spring are respectively fixed with the movable pressing block and the fixed shell, and under the action of the first torsion spring, the movable pressing block automatically resets and can apply sufficient pressure to the pressure measuring pipe in the second groove; moreover, medical personnel exert certain effort, alright overcome the effect of first torsional spring and overturn the activity briquetting, with quick direct dismouting on fixed casing of piezometric tube.

As a further improvement of the above technical solution, the movable pressing block includes a movable portion and an extrusion portion, the extrusion portion is disposed on the surface of the movable portion facing the second groove, one end of the movable portion is hinged to the fixed housing, and the other end of the movable portion extends in a direction away from the second groove to form an arc-shaped portion. In the structure of the movable pressing block, the movable part is hinged with the fixed shell, and the extrusion part positioned on the movable part can extrude the pressure measuring pipe to stably fix the pressure measuring pipe in the fixed hole; the other end of the movable part is provided with an arc-shaped part, which provides a force application point for medical staff, so that the movable part is driven to rotate around the hinged part of the movable part and the fixed shell.

As a further improvement of the above technical solution, the extrusion part is a rubber block. Extrusion portion adopts the block rubber, can take place certain deformation, can not only exert pressure to the pressure-measuring pipe, moreover, when the movable part rotated around its articulated department with fixed casing, extrusion portion can deviate from in following the second recess to put into the second recess fast with the pressure-measuring pipe.

As a further improvement of the above technical solution, a surface of the pressing portion facing the second groove is a concave arc surface for fixing the pressure measuring pipe. The extrusion portion is provided with the sunken cambered surface, the contact area of the extrusion portion and the pressure measuring pipe located in the fixing hole can be increased, and the pressure measuring pipe can be more stably fixed on the fixing shell.

As a further improvement of the technical scheme, a buckle assembly is arranged on the rear side face of the fixed shell. The upper end and the lower extreme of scale main part all set up fixed casing, and the trailing flank of fixed casing sets up buckle subassembly, is connected fixedly through buckle connected mode and infusion support, makes the scale main part fix on the infusion support to carry out central venous pressure measurement work.

As the further improvement of above-mentioned technical scheme, the buckle subassembly includes fixed jack catch and second torsional spring, fixed jack catch is equipped with two and is about being relative setting, two fixed jack catch prescribes a limit to the centre gripping hole jointly, fixed jack catch's one end pass through the second articulated shaft with fixed casing is articulated, the second torsional spring be equipped with two and respectively with two fixed jack catch relative settings, the second torsional spring cup joint in the second articulated shaft, the one end and the fixed jack catch of second torsional spring are connected, and the other end is connected with fixed casing.

The buckle subassembly includes second torsional spring and two fixed jack catchs, the fixed jack catch realizes that it is articulated with fixed casing through the second articulated shaft, the quantity of second torsional spring is unanimous with fixed jack catch, the both ends of second torsional spring are connected fixedly with fixed jack catch and fixed casing respectively, under the effect of second torsional spring, fixed jack catch can rotate around its articulated department with fixed casing, make two fixed jack catchs can tightly clip the infusion support, realize that central venous pressure dipperstick is fixed in on the infusion support with vertical state.

As a further improvement of the above technical solution, an arc-shaped guide portion is provided at an end portion of the fixing jaw away from the fixing housing. The fixing clamping jaws are provided with arc-shaped guide parts, when the fixing clamping jaws are connected with the infusion support in a buckling mode, medical staff directly enable the fixing clamping jaws to be close to the infusion support, the arc-shaped guide parts can play a role in guiding, when the arc-shaped guide parts are in contact with the infusion support, the arc-shaped guide parts and the fixing clamping jaws can be unfolded, so that the infusion support can move into a clamping hole formed by the two fixing clamping jaws and is tightly clamped by the fixing clamping jaws; so design, when central venous pressure dipperstick is installed on the infusion support, need not to strut two fixed jack catchs with the hand.

As a further improvement of the above technical solution, a clamp for fixing the pressure measuring pipe is arranged on the left side surface or the right side surface of the scale main body. Set up the clamping in the scale main part, be fixed in central venous pressure dipperstick at the pressure-measuring pipe after, can advance the clamping with the pressure-measuring pipe card in, let the three-way valve on the pressure-measuring pipe be located central venous pressure dipperstick, avoid pressure-measuring pipe and three-way valve to place in a jumble on the sick bed.

As a further improvement of the above technical means, a plurality of the clips are provided at intervals in the vertical direction of the scale main body, and the openings of the clips are provided in a direction away from the scale main body. Set up a plurality of clamping along the upper and lower direction interval of scale main part, be convenient for medical personnel with the piezometric tube card advance different clamping in, and then control the length of piezometric tube on the sick bed, prevent that piezometric tube and three-way valve from placing in disorder on the sick bed.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a perspective view of a central venous pressure measuring ruler provided by an embodiment of the present invention;

fig. 2 is a perspective view of a scale main body according to an embodiment of the present invention;

fig. 3 is a perspective view of an upper fixing housing according to an embodiment of the present invention;

fig. 4 is a top view of an upper stationary housing provided by an embodiment of the present invention;

fig. 5 is a perspective view of the upper fixing housing provided in the embodiment of the present invention from another view angle;

fig. 6 is a perspective view of a lower fixing housing according to an embodiment of the present invention.

The drawings are numbered as follows: 100. a scale body; 110. a first groove; 120. clamping the column; 200. positioning a rod; 210. a first bayonet; 220. a second bayonet; 300. a stationary housing; 310. a second groove; 320. an accommodating card slot; 400. a fixing assembly; 410. a movable pressing block; 411. a movable portion; 412. a pressing section; 420. a first torsion spring; 430. an arc-shaped portion; 500. a buckle assembly; 510. fixing the clamping jaw; 520. a clamping hole; 530. an arc-shaped guide part; 540. a second torsion spring; 600. clamping; 700. a connecting plate.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number. If any description to first, second and third is only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the drawings, the X direction is directed from the rear side to the front side of the central venous pressure measuring scale, the Y direction is directed from the left side to the right side of the central venous pressure measuring scale, and the Z direction is directed from the lower side to the upper side of the central venous pressure measuring scale.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 6, several embodiments of the central venous pressure measuring ruler of the present invention are illustrated below.

As shown in fig. 1 to 6, the first embodiment of the present invention provides a central venous pressure measuring ruler, which is used in clinical care work to help medical staff measure the central venous pressure of a patient.

The structure of the central venous pressure measuring ruler includes a ruler body 100 and a stationary case 300. Both ends of the scale body 100 extend in the vertical direction. The scale body 100 is rectangular, and may be made of a metal material, which is not particularly limited herein. The scale body 100 is provided with a first groove 110 and scale values, and the length direction of the first groove 110 coincides with the length direction of the scale body 100.

In this embodiment, the front side of scale main part 100 is sunken backward and is formed first recess 110, and the upper surface and the lower surface of scale main part 100 are run through respectively at the both ends of first recess 110, and first recess 110 is used for holding the pressure-measuring pipe, and the cross sectional shape of first recess 110 is the U-shaped, and first recess 110 is greater than the diameter of pressure-measuring pipe for medical personnel can directly place the pressure-measuring pipe in first recess 110, need not to extrude the pressure-measuring pipe into first recess 110 through the extrusion mode. The scale values are provided on the front side surface of the scale body 100, and a plurality of scale values are provided at intervals along the length direction of the first groove 110, and the scale values of the scale body 100 may range from-15 cm to 35cm, which is not particularly limited herein.

Scale main part 100 is equipped with locating lever 200, and locating lever 200 rotates through articulated shaft and scale main part 100 to be connected, and locating lever 200 is located the leading flank of scale main part 100, and locating lever 200 is equipped with first bayonet socket 210 and second bayonet socket 220, and first bayonet socket 210 and second bayonet socket 220 are located the both sides of articulated shaft respectively, and the opening direction of first bayonet socket 210 and second bayonet socket 220 is unanimous. In addition, the scale body 100 is provided with a clamping column 120, and the size of the clamping column 120 is matched with the first bayonet 210 and the second bayonet 220.

When the positioning rod 200 rotates clockwise to the horizontal, the second bayonet 220 can be clamped with the clamping column 120, so that the positioning rod 200 is kept in a stable horizontal state; when the positioning rod 200 rotates counterclockwise to be horizontal, the first bayonet 210 can be engaged with the engaging post 120, so that the positioning rod 200 maintains a stable horizontal state. It should be understood that the positioning rod 200 belongs to the prior art, the present invention does not modify the positioning rod 200, and those skilled in the art should be familiar with the structure and working principle of the positioning rod 200, and the description thereof will not be provided herein.

The fixing housings 300 may be made of metal or plastic, the number of the fixing housings 300 is two, and the two fixing housings 300 are respectively fitted over the upper and lower ends of the scale main body 100. Specifically, the fixing housings 300 are provided with accommodating grooves 320, and the ends of the scale body 100 can be inserted into the accommodating grooves 320 and connected to the inner peripheral wall surface of the accommodating grooves 320, so that the two fixing housings 300 are fixed to the scale body 100. In the present embodiment, the two fixing housings 300 may be divided into an upper fixing housing located at an upper side of the scale main body 100 and a lower fixing housing located at a lower side of the scale main body 100.

The stationary housing 300 is provided with a second groove 310. In this embodiment, the front side of the fixed housing 300 is recessed to form a second groove 310, the two ends of the second groove 310 respectively penetrate through the upper surface and the lower surface of the fixed housing 300, the cross section of the second groove 310 is U-shaped, the second groove 310 is communicated with the first groove 110, the first groove 110 and the second groove 310 are located on the same straight line, the second groove 310 is used for accommodating the pressure measuring tube, the second groove 310 is larger than the diameter of the pressure measuring tube, therefore, medical personnel can directly place the pressure measuring tube in the second groove 310, and the pressure measuring tube is not required to be squeezed into the second groove 310 through a squeezing mode.

It is noted that the stationary housing 300 is provided with a fixing member 400, and the fixing member 400 is used to apply a fixing action to the pressure measuring pipe. The fixing housings 300 located at the upper and lower sides of the scale body 100 are provided with the fixing assemblies 400, so that the pressure measuring pipe can be fixed on the corresponding fixing housing 300 through the upper and lower fixing assemblies 400, and thus both ends of the pressure measuring pipe are stably fixed.

In this embodiment, the fixed assembly 400 is disposed at the front side surface of the fixed housing 300, the fixed assembly 400 includes a movable pressing block 410, one end of the movable pressing block 410 is hinged to the fixed housing 300 through a first hinge shaft, and a central axis of the first hinge shaft extends in an up-and-down direction, so that the movable pressing block 410 can rotate around the first hinge shaft; the other end of the movable pressing block 410 is movably connected with the fixed shell 300, for example, the other end of the movable pressing block 410 is detachably connected with the fixed shell 300 by a magnetic attraction mode or a buckling mode.

It is understood that the first hinge shaft may be provided at the right side of the second groove 310 and the other end of the movable pressing piece 410 is positioned at the left side of the second groove 310. Of course, it is also possible that the first hinge shaft is located at the left side of the second groove 310 and the other end of the movable pressing piece 410 is located at the right side of the second groove 310.

Since the movable pressing piece 410 crosses the opening of the second groove 310, when the other end of the movable pressing piece 410 is connected with the fixed housing 300, the movable pressing piece 410 and the second groove 310 can define a fixing hole together, and the fixing hole is used for fixing the pressure measuring pipe. It is understood that the rear side surface of the movable pressing piece 410 and the inner wall surface of the second groove 310 together enclose a fixing hole.

In practical operation, the medical staff releases the connection between the other end of the movable pressing block 410 and the fixed shell 300 and drives the movable pressing block 410 to rotate around the first hinge shaft; then, the pressure measuring pipe can be quickly placed into the second groove 310 of the fixed shell 300; then, order about the other end of movable briquetting 410 to be connected with fixed casing 300, let movable briquetting 410 exert in order to compress tightly the effect to the pressure-measuring pipe that is located the fixed orifices, avoid pressure-measuring pipe to remove relative fixed casing 300, finally, make the corresponding steady fixed in fixed orifices of two tip of pressure-measuring pipe, and the pressure-measuring pipe can arrange along the length direction of first recess 110, and place in first recess 110, and then guarantee that the pressure-measuring pipe keeps vertical state on central venous pressure dipperstick, help improving central venous pressure measuring accuracy.

When the pressure measuring pipe needs to be detached, the pressure measuring pipe can be quickly taken out from the fixed hole by releasing the connecting action of the other end of the movable pressing block 410 and the fixed shell 300 and rotating the movable pressing block 410.

Adopt above-mentioned structural design, can with the pressure-measuring pipe tear open fast adorn in this central venous pressure dipperstick, need not to adopt traditional artifical extrusion mode, with the pressure-measuring pipe squeeze into in first recess 110 and the second recess 310, consequently, the central venous pressure dipperstick that this embodiment provided has labour saving and time saving, helps promoting medical personnel's work efficiency's advantage.

In some embodiments, as shown in fig. 3, the securing assembly 400 further includes a first torsion spring 420. The first torsion spring 420 is sleeved on the first hinge shaft, one end of the first torsion spring 420 is fixedly connected with the movable pressing block 410, and the other end of the first torsion spring 420 is fixedly connected with the fixed shell 300, so that under the torsion action of the first torsion spring 420, the movable pressing block 410 can automatically reset, the other end of the movable pressing block 410 is always kept in butt joint with the front side surface of the fixed shell 300, and sufficient pressure action can be exerted on the pressure measuring pipe positioned in the fixed hole.

Moreover, when a certain force is applied, the medical staff can overcome the action of the first torsion spring 420 to turn the movable pressing block 410 over, so that the piezometric tube can be quickly and directly assembled and disassembled on the fixed shell 300.

In some embodiments, as shown in fig. 3 and 4, the movable press 410 includes a movable portion 411 and a pressing portion 412.

The movable portion 411 may be a plate made of plastic. One end of the movable portion 411 is hinged to the fixed housing 300 by a first hinge shaft, and the other end of the movable portion 411 is provided with an arc portion 430, and in this embodiment, the other end of the movable portion 411 extends in a direction away from the second groove 310 to form the arc portion 430. The arc-shaped portion 430 provides a force application point for medical staff, so that the medical staff breaks the arc-shaped portion 430 with fingers and drives the movable portion 411 to rotate around the hinge joint of the movable portion and the fixed housing 300.

The pressing portion 412 is disposed on the surface of the movable portion 411 facing the second groove 310, in this embodiment, the pressing portion 412 is located on the rear side surface of the movable portion 411, and the pressing portion 412 and the movable portion 411 can be connected and fixed by gluing or screwing. The pressing portion 412 may be a rubber block, and may deform to a certain extent, so that not only pressure can be applied to the pressure measuring pipe, but also the pressing portion 412 can be separated from the second groove 310 when the movable portion 411 rotates around the hinge joint with the fixed housing 300, so as to rapidly insert the pressure measuring pipe into the second groove 310.

In some embodiments, the pressing portion 412 is provided with a concave arc surface at a surface of the pressing portion 412 facing the second groove 310. In this embodiment, the rear side surface of the pressing portion 412 is a concave arc surface, and the concave arc surface can contact with the outer peripheral surface of the pressure measuring pipe, so that the pressing portion 412 can well fix the pressure measuring pipe. Due to the arrangement of the concave cambered surface, the contact area between the extrusion part 412 and the pressure measuring pipe positioned in the fixed hole can be increased, and the pressure measuring pipe can be more stably fixed on the fixed shell 300.

In some embodiments, as shown in fig. 3 to 6, the fixing housing 300 is provided with the snap assembly 500, the rear side surface of the fixing housing 300 is provided with the connecting plate 700, the connecting plate 700 is provided in two pieces and is arranged in an up-down spaced manner, and the snap assembly 500 is connected with the two connecting plates 700 respectively. The stationary housing 300 is urged to be mounted to the pole by the clip assembly 500.

Specifically, the catch assembly 500 includes a fixing jaw 510 and a second torsion spring 540. The quantity of fixed jack catch 510 is two, and two fixed jack catch 510 are left and right sides relative setting, and in addition, two fixed jack catch 510 inject centre gripping hole 520 jointly, and the axis of centre gripping hole 520 extends the setting along upper and lower direction, and the size of centre gripping hole 520 and infusion support looks adaptation.

One end of the fixing jaw 510 is hinged to the fixing housing 300 by a second hinge shaft, and a central axis of the second hinge shaft is extended in an up-down direction. Both ends of the second hinge shaft are connected with the two connection plates 700, respectively, if the second hinge shaft is fixedly connected with the connection plates 700 through a screw structure. The fixing jaw 510 is provided with a connecting portion provided with a through hole, so that the second hinge shaft can pass through the through hole, thereby realizing connection of the fixing jaw 510 and the second hinge shaft.

The second torsion springs 540 are provided with two, the two second torsion springs 540 are respectively arranged corresponding to the two fixing claws 510 one by one, the two second torsion springs 540 are all sleeved on the second hinge shaft, and the two second torsion springs 540 are arranged at intervals from top to bottom. One end of the second torsion spring 540 is fixedly coupled to the fixing jaw 510, and the other end of the second torsion spring 540 is fixedly coupled to the connection plate 700 of the fixing housing 300.

Under the action of the second torsion spring 540, the fixing claws 510 can rotate around the hinged parts of the fixing claws 510 and the fixing shell 300, so that the two fixing claws 510 can tightly clamp the infusion support, and the central venous pressure measuring scale is fixed on the infusion support in a vertical state.

Furthermore, the inner peripheral wall surface of the clamping hole 520 can be provided with a rubber pad, when the infusion support penetrates through the clamping hole 520 and the clamping assembly 500 tightly holds the infusion support, the rubber pad is in direct contact with the infusion support, the rubber pad can deform to a certain degree, and the connecting effect between the clamping assembly 500 and the infusion support can be enhanced.

In some embodiments, the fixing jaw 510 is provided with an arc-shaped guide portion 530, and the arc-shaped guide portion 530 is located at an end portion of the fixing jaw 510 remote from the fixing housing 300. In this embodiment, the rear end portion of the fixing jaw 510 extends rearward to form an arc guide portion 530, and the arc guide portions 530 on the left and right sides form a groove opened rearward, which communicates with the clamping hole 520.

Because the fixing claws 510 are provided with the arc-shaped guide parts 530, when the fixing claws 510 are connected with an infusion support in a buckling manner, a medical worker can directly move the fixing claws 510 towards the direction close to the infusion support, the arc-shaped guide parts 530 can play a guiding role, when the arc-shaped guide parts 530 are contacted with the infusion support, the arc-shaped guide parts 530 and the fixing claws 510 can be spread, so that the infusion support can be moved into the clamping holes 520 formed by the two fixing claws 510 and tightly clamped by the fixing claws 510. By adopting the design, when the central venous pressure measuring scale is arranged on the infusion support, the two fixing claws 510 do not need to be opened by hands, and the time for arranging the central venous pressure measuring scale on the infusion support can be shortened.

In some embodiments, as shown in fig. 1 and 2, the scale body 100 is provided with a clip 600, the clip 600 being located on the left or right side of the scale body 100, the clip 600 being able to be used to secure a pressure measuring tube. The clip 600 may be fixed to the scale main body 100 by screws. The clip 600 may be made of plastic.

After the piezometric tube is fixed in central venous pressure dipperstick, can advance the clamping 600 with the piezometric tube card in, let the three-way valve on the piezometric tube be located central venous pressure dipperstick, avoid piezometric tube and three-way valve to place in disorder on the sick bed.

Further, the number of the clips 600 is plural, the plural clips 600 are arranged at intervals in the up-down direction of the scale main body 100, and the openings of the clips 600 are provided in a direction away from the scale main body 100. So design, be convenient for medical personnel advance the piezometric tube card in different clamping 600, and then the length of control piezometric tube on the sick bed, prevent that piezometric tube and three-way valve from placing in disorder on the sick bed.

It is understood that the clip 600 is positioned below the detent lever 200. When locating lever 200's top as the position of clamping 600, after accomplishing central venous pressure measurement work, medical personnel dismantle the back with the pressure-measuring pipe to correspond the card with the lower tip of pressure-measuring pipe and advance clamping 600, avoid the lower tip overlength of pressure-measuring pipe and drop on ground, moreover, the pressure-measuring pipe can be removed along with central venous pressure dipperstick in the lump.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims (10)

1. A central venous pressure measuring scale comprises a scale main body (100) and a fixed shell (300); the two fixed shells (300) are respectively sleeved at the upper end and the lower end of the scale main body (100); the front side surface of the fixed shell (300) is provided with a fixed component (400); the utility model discloses a pressure-measuring pipe, including scale main part (100), first recess (110) that are used for placing the pressure-measuring pipe are equipped with to the leading flank of scale main part (100), upper surface and the lower surface that scale main part (100) were run through in first recess (110), the leading flank of fixed casing (300) is equipped with second recess (310) that are used for placing the pressure-measuring pipe, upper surface and the lower surface that fixed casing (300) were run through in second recess (310), second recess (310) and first recess (110) intercommunication, fixed subassembly (400) are including activity briquetting (410), the one end of activity briquetting (410) articulates in fixed casing (300), the other end and fixed casing (300) swing joint, and activity briquetting (410) and second recess (310) inject the fixed orifices that is used for fixed pressure-measuring pipe jointly.

2. The central venous pressure measurement ruler of claim 1, wherein the fixture assembly (400) further comprises a first torsion spring (420); the movable pressing block (410) is hinged to the fixed shell (300) through a first hinged shaft, the first torsion spring (420) is sleeved on the first hinged shaft, one end of the first torsion spring (420) is connected with the movable pressing block (410), and the other end of the first torsion spring is connected with the fixed shell (300).

3. The central venous pressure measuring scale of claim 2, wherein the movable pressing block (410) comprises a movable portion (411) and a pressing portion (412), the pressing portion (412) is arranged on the surface of the movable portion (411) facing the second groove (310), one end of the movable portion (411) is hinged to the fixed shell (300), and the other end of the movable portion extends in a direction away from the second groove (310) to form an arc-shaped portion (430).

4. The central venous pressure measurement ruler of claim 3, wherein the squeeze portion (412) is a rubber block.

5. The central venous pressure measurement ruler of claim 3, characterized in that the surface of the pressing portion (412) facing the second groove (310) is a concave arc surface for fixing a pressure measurement tube.

6. The central venous pressure measurement ruler of claim 1, characterized in that the rear side of the stationary housing (300) is provided with a snap assembly (500).

7. The central venous pressure measuring scale of claim 6, wherein the buckle assembly (500) comprises two fixed claws (510) and a second torsion spring (540), the fixed claws (510) are arranged oppositely left and right, the two fixed claws (510) jointly define a clamping hole (520), one end of each fixed claw (510) is hinged to the fixed shell (300) through a second hinge shaft, the second torsion spring (540) is arranged oppositely with the two fixed claws (510), the second torsion spring (540) is sleeved on the second hinge shaft, one end of the second torsion spring (540) is connected with the fixed claws (510), and the other end of the second torsion spring is connected with the fixed shell (300).

8. The central venous pressure measurement ruler of claim 7, characterized in that the end of the fixed jaw (510) remote from the fixed housing (300) is provided with an arc-shaped guide (530).

9. The central venous pressure measurement ruler according to claim 1, characterized in that the left or right side of the ruler body (100) is provided with clips (600) for fixing a pressure measurement tube.

10. The central venous pressure measuring scale according to claim 9, wherein the clips (600) are provided in plurality at intervals in the vertical direction of the scale body (100), and the openings of the clips (600) are provided in a direction away from the scale body (100).

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