CN214965876U - Noninvasive portable central venous pressure measurer based on ultrasonic positioning - Google Patents

Abstract

The utility model provides a non-invasive portable central venous pressure caliber based on ultrasonic localization, including base, measuring stick and indicator, the base includes sucking disc and connecting seat, and the measuring stick overcoat has the sliding sleeve, and the indicator sets up on the sliding sleeve to along measuring stick endwise slip through the sliding sleeve, the utility model discloses simple structure, reasonable in design for the quick accurate measurement of central venous pressure has easy operation, and safe non-wound, good reproducibility measures accurate functional characteristics, is fit for promoting and popularizing in medical field.

Description

Noninvasive portable central venous pressure measurer based on ultrasonic positioning

Technical Field

The utility model relates to a medical and nursing measuring instrument technical field, especially a noninvasive portable central venous pressure caliber based on supersound location.

Background

The Central Venous Pressure (CVP) is the pressure of the upper and lower vena cava entering the right atrium, and is affected by various factors such as circulating blood volume and heart function, and the normal value is 4-12cm H₂o. CVP is often used to monitor available blood volume and to guide clinical fluid replacement. CVP monitoring is particularly important for patients suffering from shock, a large amount of pericardial effusion, acute left and right heart failure, renal failure, complete parenteral nutrition and the like who need long-term infusion.

Currently, the gold standard for CVP measurements is invasive central venous puncture manometry. The method has complex operation and high technical requirements on operators, and brings great pain to patients when being invasive. In addition, the puncture site also presents a potential risk of bleeding and infection. Therefore, a CVP measuring tool which is noninvasive and simple to operate is designed and prepared, and the urgent clinical needs are expected to be solved.

The non-invasive measurement of central venous pressure based on ultrasonic location is based on the human own vein as the measuring tube, and the blood column height of the internal jugular vein is used for counting CVP. And positioning body surface horizontal projection points of the right atrium central point and the collapse point of the internal jugular vein through ultrasound, and obtaining the height difference between the two points to be the CVP. Currently, clinical medical staff often use a ruler to measure the collapse level of the internal jugular vein and the central horizontal body surface projection of the right atrium to determine the central venous pressure value. Although the measurement mode is simple and non-invasive, the measurement error is large. Therefore, a measuring tool which is simple to operate and accurate in measurement needs to be designed, and the defects and problems existing in the central venous pressure measuring process are overcome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, a do not have wound portable central venous pressure caliber based on supersound location is proposed.

The specific technical scheme is as follows:

the utility model provides a noninvasive portable central venous pressure caliber based on supersound location, its characterized in that, includes base, measuring stick and indicator, the base includes sucking disc and connecting seat, the one end of measuring stick is connected with the connecting seat, and the connecting seat passes through the bulb joint and links to each other with the sucking disc, and the measuring stick overcoat has along measuring stick endwise slip's sliding sleeve, the indicator sets up on the sliding sleeve to along measuring stick endwise slip through the sliding sleeve.

The noninvasive portable central venous pressure measurer based on ultrasonic positioning is characterized in that the indicator is a laser indicator, and a level gauge is arranged at the top of the measuring rod.

The noninvasive portable central venous pressure measurer based on ultrasonic positioning is characterized in that the emitting end of the indicator is provided with a lens for horizontally and linearly dispersing visible laser.

The noninvasive portable central venous pressure measurer based on ultrasonic positioning is characterized in that the axial direction of the indicator is perpendicular to the axial direction of the measuring rod, and the level meter is a hemispherical level meter.

The noninvasive portable central venous pressure measurer based on ultrasonic positioning comprises a measuring rod, a sliding sleeve and a measuring scale, wherein the measuring scale is uniformly printed on the outer wall of the measuring rod, and the sliding sleeve is transparent.

The noninvasive portable central venous pressure measurer based on ultrasonic positioning comprises a ball joint, a ball joint and a measuring device, wherein the ball joint is provided with a strip-shaped limiting sliding groove for limiting the rotating direction of the ball joint.

Foretell a do not have wound portable central venous pressure caliber based on ultrasonic localization, wherein, one side of measuring stick is equipped with along the parallel rack of measuring stick axial, one side of sliding sleeve is equipped with the pivot, the pivot passes through bearing and sliding sleeve normal running fit, and the middle part of pivot sets up the gear, gear and pivot fixed connection rotate along with the pivot to with rack toothing.

The noninvasive portable central venous pressure measurer based on ultrasonic positioning comprises a rotary shaft, a rotary handle and a rotary handle, wherein the rotary handle is fixedly connected to one end of the rotary shaft.

The utility model has the advantages that:

the utility model provides a pair of no wound portable central venous pressure caliber based on supersound location, including base, measuring stick and indicator, the base includes sucking disc and connecting seat, and the measuring stick overcoat has the sliding sleeve, and the indicator sets up on the sliding sleeve to along measuring stick endwise slip through the sliding sleeve, the utility model discloses simple structure, reasonable in design for the quick accurate measurement of central venous pressure has easy operation, and safe no wound, good reproducibility measures accurate functional characteristics, is fit for promoting and popularizing in medical field.

Drawings

Fig. 1 is a schematic view of the present invention.

FIG. 2 is a sectional view taken along line A-A in FIG. 1.

Detailed Description

For making the technical scheme of the utility model clear more clearly and definitely, it is right to combine the embodiment below the utility model discloses it is further described, any right the utility model discloses technical scheme's technical characteristic carries out the scheme that equivalent replacement and conventional reasoning reachs and all falls into the utility model discloses protection scope.

Example one

The noninvasive portable central venous pressure measurer based on ultrasonic positioning comprises a base 1, a measuring rod 2 and an indicator 3, wherein the base 1 comprises a sucker 4 and a connecting seat 5, one end of the measuring rod 2 is connected with the connecting seat 5, the connecting seat 5 is connected with the sucker 4 through a ball joint 9, a sliding sleeve 6 which slides along the axial direction of the measuring rod 2 is sleeved outside the measuring rod 2, and the indicator 3 is arranged on the sliding sleeve 6 and slides along the axial direction of the measuring rod 2 through the sliding sleeve 6;

the indicator 3 is a laser indicator, a level gauge 7 is arranged at the top of the measuring rod 2, and a lens 8 which enables visible laser to horizontally and linearly diverge is arranged at the emitting end of the indicator 3; the axial direction of the indicator 3 is vertical to the axial direction of the measuring rod 2, the level gauge 7 is a hemispherical level gauge, measuring scales are uniformly printed on the outer wall of the measuring rod 2, and the sliding sleeve 6 is transparent;

the noninvasive portable central venous pressure measurer based on ultrasonic positioning in the embodiment has the following use method:

firstly, a testee is in a semi-reclining position with high head and low feet; then, determining a horizontal body surface projection point of the center of the right atrium and a horizontal projection point of the collapse point of the right internal jugular vein at the end of expiration in a semi-lying state of the testee by using an ultrasonic positioning mode, and marking;

the method comprises the following steps of (1) adsorbing a sucker at a body surface mark of the right atrium central point by using a noninvasive central venous pressure measurer, adjusting a measuring rod to a vertical position (confirmed by observing a level), then opening an indicator, vertically sliding the indicator up and down, enabling visible laser emitted by the indicator to be matched with a marked collapse point (the same as the horizontal position) of the right internal jugular vein at the end-expiratory side, and observing a measuring scale of the position of the indicator at the moment to obtain an accurate central venous pressure value;

in order to adjust the vertical state of the measuring rod conveniently, the measuring rod is connected with the sucker in a hinged mode, and the vertical state of the measuring rod can be observed visually by matching with a level meter, particularly a hemispherical horizontal line; the indicator is additionally provided with the lens, so that the emitted visible laser is diffused in a horizontal line shape and projected on a tested person, the anastomosis efficiency of the vein collapse points is improved, and the use is more convenient.

Example two

According to the noninvasive portable central venous pressure measurer based on ultrasonic positioning, a strip-shaped limiting sliding groove 10 is formed in a ball joint 9 and used for limiting the rotating direction of the ball joint 9;

this embodiment adopts the ball joint to realize the rotation of articulated seat and sucking disc and connects for the adjustment of the vertical state of convenient measuring stick, is convenient for stabilize the vertical state of measuring stick, and simultaneously, the spacing spout that sets up on the ball joint restricts the pivot position of ball joint, prevents the pivot position skew, guarantees measurement accuracy.

EXAMPLE III

In the non-invasive portable central venous pressure measurer based on ultrasonic positioning, a rack 13 parallel to the axial direction of the measuring rod 2 is arranged on one side of the measuring rod 2, a rotating shaft 14 is arranged on one side of the sliding sleeve 6, the rotating shaft 14 is in rotating fit with the sliding sleeve 6 through a bearing, a gear 15 is arranged in the middle of the rotating shaft 14, and the gear 15 is fixedly connected with the rotating shaft 14, rotates along with the rotating shaft 14, and is meshed with the rack 13;

wherein, one end of the rotating shaft 14 is fixedly connected with a rotating handle 16;

in the embodiment, on the basis of the embodiment, the rack and the gear are additionally arranged and used for enabling the sliding sleeve to move up and down in the axial direction of the measuring rod; when rotating the rotatory handle, the gear revolve, and then drive the sliding sleeve and reciprocate along the rack direction to realize the removal and the regulation of indicator, be convenient for coincide the vein collapse point of mark.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. The utility model provides a noninvasive portable central venous pressure caliber based on supersound location, a serial communication port, including base (1), measuring stick (2) and indicator (3), base (1) includes sucking disc (4) and connecting seat (5), the one end of measuring stick (2) is connected with connecting seat (5), and connecting seat (5) link to each other with sucking disc (4) through bulb joint (9), and measuring stick (2) overcoat has along measuring stick (2) endwise slip's sliding sleeve (6), indicator (3) set up on sliding sleeve (6) to along measuring stick (2) endwise slip through sliding sleeve (6).

2. An ultrasound location based noninvasive portable central venous pressure measurer as claimed in claim 1 characterized in that the indicator (3) is a laser indicator and the measuring rod (2) is provided with a level (7) on top.

3. An ultrasound location based noninvasive portable central venous pressure measurer as claimed in claim 2 characterized in that the emitting end of the indicator (3) is equipped with a lens (8) which makes visible laser light horizontally diverge linearly.

4. An ultrasound positioning based noninvasive portable central venous pressure measurer as claimed in claim 2 characterized in that the axial direction of the indicator (3) is perpendicular to the axial direction of the measuring rod (2), and the level (7) is a hemispherical level.

5. The non-invasive portable central venous pressure measurer based on ultrasonic positioning as claimed in claim 1, characterized in that the measuring rod (2) is uniformly printed with measuring scales on its outer wall, and the sliding sleeve (6) is transparent.

6. The noninvasive portable central venous pressure measurer based on ultrasonic positioning as claimed in claim 1 is characterized in that a strip-shaped limiting sliding groove (10) is arranged on the ball joint (9).

7. The non-invasive portable central venous pressure measurer based on ultrasonic positioning as claimed in claim 1, characterized in that one side of the measuring rod (2) is provided with a rack (13) parallel to the axial direction of the measuring rod (2), one side of the sliding sleeve (6) is provided with a rotating shaft (14), the rotating shaft (14) is rotatably matched with the sliding sleeve (6) through a bearing, the middle part of the rotating shaft (14) is provided with a gear (15), and the gear (15) is fixedly connected with the rotating shaft (14), rotates along with the rotating shaft (14), and is meshed with the rack (13).

8. An ultrasonic positioning-based noninvasive portable central venous pressure measurer according to claim 7, characterized in that a rotary handle (16) is fixedly connected to one end of the rotary shaft (14).

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