CN211912437U - Cavity guide assembly with liquid pressure detection function - Google Patents

Abstract

The utility model provides a cavity guide component with liquid pressure detection function, which comprises a guide wire, wherein a hollow cavity which is communicated with the front and the back is formed inside the guide wire; the flexible cylinder is formed at the distal end of the guide wire and limits a liquid channel communicated with the hollow cavity channel, and the data output optical fiber is provided with a liquid inlet for liquid to enter the liquid channel; a pressure sensor disposed at a distal section of the fluid channel, the pressure sensor configured to deform when fluid enters the fluid channel; the data output optical fiber penetrates through the hollow cavity channel and the liquid channel, the far end of the data output optical fiber is fixedly connected with the pressure sensor, and the near end of the data output optical fiber is provided with an optical fiber connector used for being connected with pressure measuring equipment; an elastic member disposed at a distal section of the data output fiber to maintain bending of the flexible barrel.

Description

Cavity guide assembly with liquid pressure detection function

Technical Field

The utility model relates to a chamber is said and is guided the seal wire, concretely relates to chamber is said and is guided subassembly with liquid pressure detects function.

Background

Traditional luminal guide wires: the device is mainly used for guiding the instrument to enter a human body cavity, the instrument firstly enters the cavity, and the instrument also needs to be left in the human body cavity during the whole operation period; when the guide wire enters the renal pelvis of the urethra, the pressure of the body cavity is in an unstable state due to external interference, and the pressure in the renal pelvis is too high, so that a series of complications can be caused; the nephrointernal pressure measurement is expected by doctors, but the ureter is too narrow, and related detection equipment cannot enter the renal pelvis easily, so that accurate nephrointernal pressure measurement is difficult to realize.

SUMMERY OF THE UTILITY MODEL

The utility model provides a chamber says guide assembly with liquid pressure detection function, this subassembly includes:

a guide wire, a hollow cavity channel which is communicated with the front and the back is formed in the guide wire,

the flexible cylinder is formed at the distal end of the guide wire and limits a liquid channel communicated with the hollow cavity channel, and the data output optical fiber is provided with a liquid inlet for liquid to enter the liquid channel;

a pressure sensor disposed at a distal section of the fluid channel, the pressure sensor configured to deform when fluid enters the fluid channel;

the data output optical fiber penetrates through the hollow cavity channel and the liquid channel, the far end of the data output optical fiber is fixedly connected with the pressure sensor, and the near end of the data output optical fiber is provided with an optical fiber connector used for being connected with pressure measuring equipment;

an elastic member disposed at a distal section of the data output fiber to maintain bending of the flexible barrel.

Preferably, the assembly further comprises a guide wire handle, and the proximal end of the guide wire is connected with the guide wire handle.

Preferably, the elastic element is a spring sleeved on the distal section of the data output optical fiber in the liquid channel.

Preferably, an optical fiber protective layer is formed outside the optical fiber proximal section.

Preferably, the cylindrical flexible thin wall has a front side area and a rear side area relative to the pressure sensor, and the liquid inlet is arranged in the front side area and/or the rear side area.

Preferably, the guidewire has a lubricious outer wall.

Preferably, the lubricating outer wall of the guide wire is made of an elastic high polymer material.

Preferably, the guide wire handle is detachably connected with the proximal end of the guide wire.

Preferably, the guide wire handle is in pluggable fit with the proximal end of the guide wire.

Through the utility model provides a chamber says guide assembly, data output optic fibre runs through constrictive seal wire passageway, and forms flexible deformable barrel at seal wire passageway distal end, guarantees the test of realizing pressure on the basis of its head end bending through setting up the spring.

The utility model discloses mainly combine with the seal wire through liquid laser pressure measurement technique, but realize the seal wire pressure measurement through special construction, let the operator can directly know the interior and the intracavity of renal pelvis liquid pressure condition in real time, provide relevant monitoring data for the doctor and refer to, make things convenient for the doctor to make better judgement and selection, promote operation efficiency.

In addition, because the function in order to satisfy test pressure, the utility model discloses flexible barrel that is equipped with at the seal wire head end is in order to form installation and test channel, based on this, the utility model provides an be equipped with the elastic component in the flexible barrel in order to keep the holistic flexible of guide assembly, avoid the introduction of pressure measuring component to weaken or lose the bending characteristic of seal wire.

Drawings

Fig. 1 is a schematic structural view of a lumen guide assembly provided in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion a of FIG. 1;

FIG. 3 is an enlarged view of the portion b in FIG. 1;

FIG. 4 is an enlarged view of the structure of part b in example 2;

fig. 5 is an enlarged view of the structure of the portion b in example 3.

Detailed Description

The technical solution of the present invention or utility model will be further specifically described below by means of specific embodiments and with reference to the drawings of the specification;

in the description of the present invention, it is to be understood that the terms "front", "back", "head", "tail", "far", "near", "axial" and "radial" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted" and "connected" should be interpreted broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through an intermediate medium, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

Example 1

Referring to fig. 1-3, the present embodiment provides a lumen guiding assembly with liquid pressure detection function, which includes a guide wire 11, a flexible cylinder 6, a pressure sensor 8, a data output fiber 1, and a spring 7:

a hollow cavity which is through from front to back is formed in the guide wire 11, and the guide wire is used as a guide section to be guided into the cavity;

the flexible cylinder 6 is formed at the distal end of the guide wire and defines a liquid channel 9 communicated with the hollow cavity, and the liquid channel 9 is provided with a liquid inlet 10 for liquid to enter the liquid channel 9;

a pressure sensor 8 is arranged inside the liquid channel, said pressure sensor being configured to be deformable when liquid enters the liquid channel;

the data output optical fiber 1 penetrates through the hollow cavity and the liquid channel, the far end of the data output optical fiber 1 is connected with the pressure sensor 9, and the near end of the data output optical fiber is provided with an optical fiber connector 3 used for being connected with pressure measuring equipment;

so, liquid fills through the inlet and gets into liquid channel, and pressure sensor 8 takes place deformation and then influences the light emission angle of optic fibre, and then obtains test pressure.

In addition, in order to meet the test fluid pressure without weakening or losing the bending effect of the guide wire tip, a support spring 7 is arranged inside the flexible cylinder, and the spring is arranged on the distal section of the data output optical fiber to keep the flexible cylinder bent. Optionally, the spring 7 is sleeved on a distal section of the data output optical fiber in the liquid channel; specifically, the spring 7 is sleeved on the outer side of the data optical fiber and abuts against the proximal section of the liquid channel.

So, in order to satisfy test pressure's function, the utility model discloses flexible barrel that is equipped with at the seal wire head end is in order to form installation and test channel, based on this, the utility model provides an be equipped with the elastic component in the flexible barrel in order to keep the holistic flexible of guide assembly, avoid the introduction of pressure measurement subassembly to weaken or lose the bending characteristic of seal wire.

In the embodiment, the existing guide wire introducing process needs to hold a thin guide wire by hand, so that the guide wire is easy to slide by hand and difficult to master the guide process; the guiding component provided by the utility model also comprises a guide wire handle 4, and the near end of the guide wire is connected with the guide wire handle; preferably, the guide wire handle is detachably connected with the near end of the guide wire, specifically, the guide wire and the guide wire handle can be plugged and pulled to be matched, and the guide wire can be conveniently held by hand to guide into the cavity.

In this embodiment, an optical fiber protection layer 2 is formed outside the proximal segment of the optical fiber to protect the cold light source of the optical fiber.

In the present embodiment, referring to fig. 3, the liquid inlet is disposed in the front side region, and the liquid filling enters the liquid channel to apply pressure to the pressure sensor through the liquid inlet.

In this embodiment, the guidewire has a lubricious outer wall; specifically, the lubricating outer wall is made of an elastic high polymer material; therefore, the elastic lubricating material is in soft contact with the cavity, so that friction is reduced, and the internal structure of the elastic lubricating material is protected.

Through the utility model provides a chamber says guide assembly, data output optic fibre runs through constrictive seal wire passageway, and forms flexible deformable barrel at seal wire passageway distal end, guarantees the test of realizing pressure on the basis of its head end bending through setting up the spring.

The utility model discloses mainly combine with the seal wire through liquid laser pressure measurement technique, but realize the seal wire pressure measurement through special construction, let the operator can directly know the interior and the intracavity of renal pelvis liquid pressure condition in real time, provide relevant monitoring data for the doctor and refer to, make things convenient for the doctor to make better judgement and selection, promote operation efficiency.

Example 2

Referring to fig. 4, the guiding assembly provided in this embodiment is substantially the same as embodiment 1, except that the liquid inlet is disposed in the rear side region, and the liquid filling inlet liquid channel is pressurized to the pressure sensor through the liquid inlet.

Example 3

Referring to fig. 5, the present embodiment provides a guiding assembly substantially the same as that of embodiment 1, except that the liquid inlet is disposed in the front side region and the rear side region, and the liquid filling inlet liquid channel is pressurized to the pressure sensor through the liquid inlet.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A chamber channel guide assembly with a liquid pressure detection function is characterized in that: the assembly includes:

a guide wire (11) which is internally provided with a hollow cavity which is communicated with the front and the back,

a flexible barrel (6) formed at the distal end of the guide wire (11) and defining a liquid channel (9) communicating with the hollow lumen, the liquid channel (9) being provided with a liquid inlet (10) for liquid to enter the liquid channel;

a pressure sensor (8) arranged inside the liquid channel (9), said pressure sensor being configured to be deformable when liquid enters the liquid channel;

the data output optical fiber (1) penetrates through the hollow cavity and the liquid channel (9), the far end of the data output optical fiber (1) is connected with the pressure sensor (8), and the near end of the data output optical fiber is provided with an optical fiber connector (3) used for being connected with pressure measuring equipment;

an elastic member disposed at a distal section of the data output fiber to maintain bending of the flexible barrel.

2. The lumen guide assembly of claim 1 further comprising a guide wire handle (4), wherein the proximal end of the guide wire is connected to the guide wire handle (4).

3. The channel guide assembly of claim 1, wherein the resilient member is a spring disposed about a distal portion of the data output fiber within the fluid passage.

4. The lumen guiding assembly of claim 1 wherein a protective layer of optical fiber is formed outside the proximal segment of the optical fiber.

5. The channel guide assembly of claim 1, wherein the flexible barrel has a front region and a rear region with respect to the pressure sensor, and the fluid inlet is disposed in the front region and/or the rear region.

6. The lumen guide assembly of claim 1 wherein said guidewire has a lubricious outer wall.

7. The lumen guide assembly of claim 6 wherein said lubricious outer wall of said guidewire is formed of an elastomeric polymer material.

8. The lumen guide assembly of claim 2 wherein the guidewire handle is removably attached to the proximal end of the guidewire.

9. The channel guide assembly according to claim 3, wherein the spring is sleeved outside the data output fiber (1) and abuts the proximal section of the fluid channel.

10. The lumen guide assembly of claim 8 wherein the guidewire handle is removably engaged with the proximal end of the guidewire.

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