CN213371955U

CN213371955U - Venous pressure tester

Info

Publication number: CN213371955U
Application number: CN202022119120.7U
Authority: CN
Inventors: 孔德润; 杨思静; 彭杰; 宋绍方; 武理霞; 吴艾久
Original assignee: Hefei Zhongna Medical Instrument Co ltd
Current assignee: Hefei Zhongna Medical Instrument Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-06-08
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses a vein pressure measuring instrument. The venous pressure tester is applied to a gastroscope and comprises a catheter, a probe, an air bag and an inflation structure. One end of the guide tube is provided with a probe and extends into an operation hole arranged on an endoscope of the gastroscope, and the probe extends out of the endoscope through the operation hole. A sunken part is arranged on one section of the pipe wall of the conduit, and an inflation hole is arranged at the sunken part. The air bag is filled in the concave part and is communicated with the conduit through the inflation hole. The inflatable structure is communicated with the air bag through the guide pipe, and when at least one part of the concave part extends into the operation hole, the inflatable structure inflates the air bag through the inflation hole in the guide pipe, so that the diameter of the guide pipe at the concave part is larger than that of the operation hole, the guide pipe is fixed relative to the endoscope, and the endoscope and the probe move synchronously. The utility model discloses can effectively avoid taking place axial and rotary displacement between endoscope and the probe, reduce measuring error, improve the detection precision of measuring probe in clinical application.

Description

Venous pressure tester

Technical Field

The utility model relates to a medical science field especially relates to a vein pressure measuring instrument.

Background

Current venous manometers include a catheter and a probe mounted on one end of the catheter. When the vein pressure meter is used for measuring the vein pressure of the stomach, the probe needs to be extended out through the operation hole of the endoscope to reach the stomach for vein measurement. If the location to be measured is remote, a length of catheter may also need to extend from the procedure hole to assist in the measurement of the probe over distance. Thus, the diameter of either the probe or the catheter must be smaller than the diameter of the access hole so that the probe or catheter can extend through the access hole.

However, since the distal end of the endoscope can freely change its direction as required by the measurement position, when the diameter of the probe or the guide tube is smaller than that of the operation hole, the probe or the guide tube is liable to undergo axial and rotational displacements with respect to the hole wall of the operation hole, resulting in measurement errors of the probe.

SUMMERY OF THE UTILITY MODEL

In order to overcome when pipe or probe diameter are less than the diameter of the handle hole of gastroscope, axial and rotary displacement take place for the pore wall of the easy relative handle hole of probe or pipe, and cause the measuring error's of probe technical problem, the utility model provides a vein pressure measuring instrument.

The utility model discloses a following technical scheme realizes:

a venous pressure gauge for use on a gastroscope, the gastroscope including an endoscope; the venous pressure tester comprises a catheter, a probe and a fixing device;

an operation hole is formed in the endoscope, and one end of the guide pipe is inserted into the endoscope and extends out of the endoscope through the operation hole after a probe is installed at one end of the guide pipe; a sunken part is arranged on one section of the pipe wall of the conduit, and at least one inflation hole is formed in the sunken part;

the fixing device includes: the air bag is filled in the concave part and is communicated with the conduit through the inflation hole; when the air sac is not inflated, the diameter of the concave part filled with the air sac is not larger than that of the catheter; and an inflation structure which is communicated with the balloon through the catheter and inflates the balloon through the inflation hole;

wherein the inflation structure inflates the balloon through the inflation hole when at least a portion of the recess extends within the operating hole, such that the diameter of the catheter at the recess is greater than the diameter of the operating hole to fix the catheter relative to the endoscope for synchronized movement of the endoscope and probe.

As an improvement of the technical proposal of the previous step, the inflatable bag is in an uninflated state, and the concave part is filled by the air bag, so that the diameter of the catheter at the concave part is consistent with that of the catheter.

As an improvement of the technical scheme of the previous step, the air bag is injected into the concave part, and when the air bag is not cured, air is inflated through the inflation hole, and the air bag communicated with the inflation hole is formed after the air bag is cured.

Further, the air bag is of a thin film structure.

As an improvement of the technical scheme of the previous step, the inflating structure comprises an injector and an air pipe which is communicated with the injector and the catheter.

As a further improvement of the above technical solution, the fixing device further comprises a pressure sensor for detecting the air pressure in the conduit.

Furthermore, the pressure sensor broadcasts the collected air pressure in real time through a voice broadcast device, or displays the collected air pressure in real time through a display.

As an improvement of the technical scheme of the previous step, a film is paved on the outer wall of the conduit.

As an improvement of the technical scheme in the previous step, the fixing device further comprises a cavity structure, the other end, opposite to the guide pipe, of the guide pipe penetrates through the cavity structure, the pipe wall of the guide pipe in the cavity structure is provided with an air vent, the cavity structure is communicated with the guide pipe through the air vent, and the inflating structure is communicated with the guide pipe through the cavity structure.

Furthermore, the cavity structure is provided with three ports, the first port and the second port are used for the conduit to penetrate through the cavity structure, and the third port is used for being connected with the inflatable structure.

The utility model discloses a vein pressure gauge has following beneficial effect:

when the novel middle vein pressure measuring instrument is applied to measuring the pressure of the vein of the stomach, the structure of the air bag is utilized for fixing, the operation is simple, and the instrument can be repeatedly used; the catheter is fixed relative to the endoscope, so that the probe and the endoscope perform synchronous motion, axial and rotary displacement between the endoscope and the probe can be effectively avoided, and measurement errors are reduced, thereby improving the detection precision of the measuring probe in clinical application.

Drawings

Fig. 1 is a schematic view of a partial structure of a vein pressure meter according to a preferred embodiment of the present invention.

Fig. 2 is a partial structural schematic view of the fixing device in fig. 1.

Description of the symbols

1 catheter and 7 trachea

2 probe 8 cavity structure

3 Syringe with recess 9

4 inflation hole 10 port one

5 airbag 11 port two

6-inflation structure 12 ports three

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

This example describes a venous manometry device for use with a gastroscope. When the vein pressure measuring instrument is used for measuring the vein of the stomach, the catheter is fixed relative to the endoscope of the gastroscope, so that the probe and the endoscope move synchronously, the axial displacement and the rotary displacement between the endoscope and the probe can be effectively avoided, the measurement error is reduced, and the detection precision of the measuring probe in clinical application is improved.

Referring to fig. 1 and 2, the venous pressure measuring apparatus includes a catheter 1, a probe 2, and a fixing device.

An operation hole is formed in the endoscope, and after the probe 2 is installed at one end of the guide tube 1, the guide tube extends into the endoscope and extends out of the endoscope through the operation hole so as to realize the examination of the part to be examined. The probe 2 is a conventional device for a venous pressure meter and will not be described in detail here. The outer wall of the catheter 1 can be paved with a film, and the film can be made of materials which do not affect the human body, such as a PE protective film. A sunken part 3 is arranged on one section of the pipe wall of the conduit 1, and at least one inflation hole 4 is arranged on the sunken part 3. In this embodiment, a tube wall of one end of the conduit 1 may be provided with a recess 3, in other embodiments, a plurality of recesses 3 may be formed on a tube wall of one end of the conduit 1, and each recess 3 may be provided with at least one inflation hole 4.

The fixing device comprises an air bag 5, an inflating structure 6 and a cavity structure 8.

Referring again to fig. 2, the balloon 5 fills the recess 3 and communicates with the catheter 1 through the inflation hole 4. When the balloon 5 is not inflated, the diameter of the recess 3 after filling the balloon 5 is no larger than the diameter of the catheter 1. In this embodiment, the recess 3 is filled by the balloon 5 when the balloon 5 is not inflated, so that the diameter of the catheter 1 at the recess 3 is kept the same as the diameter of the catheter 1.

The air bag 5 can be of a film structure, and can be injected into the concave part 3 during manufacturing, and the air bag 5 communicated with the inflation hole 4 is formed in an air inflation mode when not cured. A membrane laid on the outer wall of the catheter 1. The bladder 5 may be part of the membrane or the bladder 5 may be of a different material to the rest of the membrane, and the bladder 5 will expand when the membrane is inflated.

The inflation structure 6 communicates with the balloon 5 through the catheter 1 and inflates the balloon 5 through the inflation hole 4. The inflation structure 6 may comprise a syringe 9 and a gas tube 7, the gas tube 7 being adapted to communicate the syringe 9 with the catheter 1.

When at least a portion of the recess 3 extends within the operation aperture, the inflation structure 6 inflates the balloon 5 through the inflation aperture 4 such that the diameter of the catheter 1 at the recess 3 is greater than the diameter of the operation aperture to fix the catheter 1 relative to the endoscope for simultaneous movement of the endoscope and probe 2.

In other embodiments, the fixation device may further comprise a pressure sensor for detecting the air pressure inside the catheter 1. The pressure sensor can also broadcast the collected air pressure in real time through a voice broadcast device or display the collected air pressure in real time through a display, so that a monitor can master the air pressure in the air bag 5 in real time, the air bag 5 is inflated and deflated through the operation of the inflation structure 6, and finally the air pressure in the air bag 5 is always kept in a preset range. If the performance optimization is considered, a controller can be arranged, and the controller controls the inflation structure 6 to inflate and deflate the air bag 5 according to the air pressure collected by the pressure sensor, so that the air pressure in the air bag 5 is always kept within the preset range.

The opposite other end of the conduit 1 penetrates through the cavity structure 8, a vent hole is formed in the wall of the conduit 1 in the cavity structure 8, the cavity structure 8 is communicated with the conduit 1 through the vent hole, and the inflating structure 6 is communicated with the conduit 1 through the cavity structure 8. In the present embodiment, the cavity structure 8 is provided with three ports, a first port 10 and a second port 11 for the catheter 1 to pass through the cavity structure 8, and a third port 12 for the inflation structure 6. In other embodiments, the cavity structure 8 may not be provided and, if the cavity structure 8 is not provided, the inflatable structure 6 may communicate directly with the catheter 1.

When performing vein manometry, the probe is passed through the endoscope operation hole. The inflation structure can inflate the balloon 5 through the inflation hole 4 of the catheter 1 according to the gas pressure in the catheter 1 detected by the pressure sensor. The gas enters the cavity structure 8 through the gas pipe 7, and the gas pressure is effectively relieved. The gas slowly and smoothly enters the balloon 5 through the catheter 1, so that the relative stability of the probe and the endoscope structure is maintained while the balloon 5 is expanded. Until the gas pressure in the guide pipe 3 reaches the pressure value, the gas pressure sensor can perform standby operation, the inflatable structure does not inflate into the air bag structure 4 any more, the air bag 5 expands at the moment to enable the diameter of the guide pipe to be larger than that of the operation hole, so that the endoscope and the probe 2 are fixed relatively, and the endoscope and the probe 2 perform synchronous motion. Axial and rotary displacement of the probe or the catheter relative to the hole wall of the operation hole is avoided, so that the detection precision of the measuring probe in clinical application is improved; after the measurement is finished, the gas in the air bag 5 is discharged through the injector 9, and the venous pressure measuring probe is withdrawn, so that the operation is simple and convenient. Therefore, the utility model discloses can effectively avoid taking place axial and rotary displacement between endoscope and the probe, reduce measuring error, improve the detection precision of measuring probe in clinical application.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A venous pressure gauge for use on a gastroscope, the gastroscope including an endoscope; the venous pressure tester comprises a catheter (1) and a probe (2); an operation hole is formed in the endoscope, and after a probe (2) is installed at one end of a guide tube (1), the guide tube extends into the endoscope and extends out of the endoscope through the operation hole;

the device is characterized in that a concave part (3) is arranged on one section of the pipe wall of the conduit (1), and at least one inflation hole (4) is formed in the concave part (3);

the venous pressure tester further comprises a fixing device, the fixing device comprising:

an air bag (5) filled in the recess (3) and communicated with the conduit (1) through an inflation hole (4); when the air sac (5) is not inflated, the diameter of the concave part (3) filled with the air sac (5) is not larger than that of the catheter (1); and

an inflation structure (6) which is communicated with the air bag (5) through the catheter (1) and inflates the air bag (5) by means of the inflation hole (4);

wherein, when at least a part of the recess (3) extends within the operation hole, the inflation structure (6) inflates the balloon (5) through the inflation hole (4) such that the diameter of the catheter (1) at the recess (3) is larger than the diameter of the operation hole to fix the catheter (1) relative to the endoscope for synchronous movement of the endoscope and probe (2).

2. The venous pressure monitor according to claim 1, characterised in that the recess (3) is filled by the balloon (5) when the balloon (5) is not inflated, so that the diameter of the catheter (1) at the recess (3) is kept the same as the diameter of the catheter (1).

3. Venous pressure manometer according to claim 1, characterized in that the air cell (5) is injection moulded in the depression (3) and, when uncured, is inflated through the inflation opening (4) and, after curing, forms an air cell (5) communicating with the inflation opening (4).

4. The venous pressure manometer of claim 3, characterized in that the balloon (5) is of a membrane structure.

5. The intravenous pressure meter according to claim 1, wherein the inflation structure (6) comprises an injector (9) and a trachea (7) communicating the injector (9) with the catheter (1).

6. The venous pressure gauge according to claim 1, characterized in that the fixing means further comprise a pressure sensor for detecting the air pressure inside the catheter (1).

7. The venous pressure manometer of claim 6, wherein the pressure sensor broadcasts the collected air pressure in real time through a voice broadcaster or displays the collected air pressure in real time through a display.

8. Venous pressure manometer according to claim 1, characterized in that the outer wall of the catheter (1) is provided with a membrane.

9. The venous pressure meter according to claim 1, characterised in that the fixing means further comprise a cavity structure (8), the opposite end of the conduit (1) extending through the cavity structure (8), the conduit (1) being provided with an air vent in the wall of the tube inside the cavity structure (8), through which air vent the cavity structure (8) communicates with the conduit (1), and the air-filled structure (6) communicates with the conduit (1) through the cavity structure (8).

10. The venous pressure monitor according to claim 9, characterised in that the cavity structure (8) is provided with three ports, the port one (10) and the port two (11) being provided for the conduit (1) to penetrate the cavity structure (8), the port three (12) being provided for the connection to the inflatable structure (6).