CN219661645U - Liquid suction mechanism of bronchoscope - Google Patents

Abstract

The utility model relates to a liquid suction mechanism of a bronchoscope, which comprises a liquid suction pipe and a control valve, wherein the liquid suction pipe and the control valve are arranged on an operating handle of the bronchoscope; the control valve is provided with a liquid inlet and a liquid outlet; the tail part of the liquid suction pipe is connected with an adapter in a sealing way, and a first connecting joint with the axis perpendicular to the axis of the liquid suction pipe and communicated with the liquid suction pipe extends on the adapter; the hard switching pipe with an S-shaped structure is connected on the first connector in a sealing way, and one end of the hard switching pipe, which is far away from the first connector, is connected with a liquid outlet of the control valve in a sealing way; the liquid inlet of the control valve is communicated with the forceps channel of the bronchoscope through a connecting pipe. The utility model connects the liquid suction pipe and the control valve through the adapter and the hard adapter, which is not easy to block and control.

Description

Liquid suction mechanism of bronchoscope

Technical Field

The utility model relates to a bronchoscope, in particular to a liquid suction mechanism of the bronchoscope.

Background

Bronchoscopes are medical instruments commonly used in respiratory and critical medical science, and are generally used in bronchoexamination, sputum suction and cleaning operations, and play a role in removing phlegm plugs and sputum and cleaning airways of patients. It is generally composed of an operation handle, an insertion portion connected to the front end of the operation handle, a bending portion and a probe provided at the front end of the insertion portion, a display member connected to the operation handle, a negative pressure device, and the like. In the existing bronchoscopes, a liquid suction pipe is usually directly connected to a pressing button, for example, in a disposable electronic bronchoscope of a patent CN218651762U, a suction pipe is connected to a suction joint in a penetrating manner, a connecting seat penetrating through an inner wall of a handle is arranged on the suction joint, the suction pipe penetrates through the suction joint and the connecting seat and then is communicated with a guide pipe connected to a water injection pipeline, the pressing button is sleeved on the suction joint, and then negative pressure is generated by pressing the suction pipe through a connecting rod arranged in an inner cavity of the pressing button and a pressing seat connected to the connecting rod by using the pressing seat; the suction connector in the structure is only a carrier for bearing the suction pipe and pressing the button, negative pressure is generated by pressing the suction pipe, the suction pipe is easily damaged when the pressing seat presses the suction pipe, the structure is characterized in that acting force is applied to the outside of the suction pipe, the outside of the suction pipe cannot seal the inside of the suction pipe by applying the acting force, the situation that the negative pressure is insufficient can be generated, the suction pipe cannot recover after being pressed and deformed easily under the situation, and then the suction pipe is blocked during suction.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a liquid suction mechanism of a bronchoscope.

The technical scheme adopted for solving the technical problems is as follows: a liquid suction mechanism of a bronchoscope, which comprises a liquid suction pipe and a control valve, wherein the liquid suction pipe and the control valve are arranged on an operating handle of the bronchoscope; the control valve is provided with a liquid inlet and a liquid outlet which are positioned at two opposite sides; the tail part of the liquid suction pipe is connected with an adapter in a sealing way, and a first connecting head with the axis perpendicular to the axis of the liquid suction pipe and communicated with the liquid suction pipe extends on the adapter; the hard switching pipe is in an S-shaped structure and one end of the hard switching pipe, which is far away from the first connector, is in sealing connection with a liquid outlet of the control valve; the liquid inlet of the control valve is communicated with the forceps channel of the bronchoscope through a connecting pipe.

Preferably, a liquid injection joint with three communicated interfaces is arranged between the connecting pipe and the forceps channel, the liquid injection joint is arranged on the bronchoscope operating handle, one interface is communicated with the connecting pipe, the other interface is communicated with the forceps channel, and the third interface is positioned outside the bronchoscope operating handle.

Preferably, a sealing cover is arranged on an interface of the liquid injection joint, which is positioned outside the bronchoscope operating handle.

Preferably, the control valve comprises a valve body shell with a barrel-shaped structure, a piston rod movably arranged in the valve body shell, a push button arranged at the opening of the valve body shell and connected with the piston rod, and a telescopic spring sleeved outside the piston rod; the liquid inlet and the liquid outlet are sequentially arranged on the side wall of the valve body shell from the bottom end of the valve body shell upwards; the piston rod is spaced from the inner wall of the valve body shell by a gap, a sealing ring is sleeved on the outer wall of one end far away from the button, and a sealing gasket is arranged on the bottom surface of the button; the upper part of the inner wall of the valve body shell is concavely provided with a step which is abutted with the telescopic spring along the radial direction of the valve body shell.

Preferably, the piston rod is provided with a long-strip-shaped piston rod through hole in the axial direction.

Preferably, the valve body shell comprises a cylinder body and a bottom plate which is connected with the bottom end of the cylinder body in a sealing way.

Preferably, the end part of the piston rod, which is far away from one end of the button, is radially outwards extended to be abutted with the inner wall of the valve body shell, the outer wall of the piston rod is provided with an annular groove at a position adjacent to the annular protrusion, and the sealing ring is arranged in the annular groove.

Preferably, the adapter is a joint provided with a circular groove, an annular connecting block which is connected to the tail end of the liquid suction pipe in a matching and sealing way extends at the opening end of the circular groove, and the first connecting block is communicated with the circular groove and is arranged on the side wall of the adapter at a position adjacent to the bottom of the circular groove.

Preferably, the outer wall of the first connector is provided with a reversed tooth-shaped connector bulge which can elastically deform around the circumference of the first connector.

Preferably, the outer wall of the liquid outlet is provided with a liquid outlet bulge which is in a inverted tooth shape and can elastically deform around the circumference of the liquid outlet.

The utility model has the beneficial effects that: according to the utility model, the adapter and the hard adapter tube are arranged between the liquid suction pipe and the control valve to be communicated, so that the arrangement of all parts in the operating handle of the bronchoscope is facilitated, the negative pressure is not required to be generated by applying pressure outside the liquid suction pipe, the problem that the liquid suction pipe is blocked because deformation cannot be recovered is solved, meanwhile, the control valve is communicated with the liquid suction pipe, the liquid suction pipe can be well sealed, and the liquid suction pressure in the liquid suction pipe is ensured; the adapter and the hard adapter tube have no problem of pressed deformation in the operating handle, thereby facilitating the installation in the operating handle, ensuring the smoothness of each pipeline in the operating handle during the liquid suction and avoiding the problem of blockage.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an adapter and pipette connection according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a control valve according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the piston rod according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a liquid injection joint according to an embodiment of the present utility model;

FIG. 6 is a schematic view of an embodiment of the present utility model installed in a bronchoscope handle;

part names and serial numbers in the figure: the liquid filling device comprises a liquid filling pipe 2, a control valve 20, a liquid inlet 21, a liquid outlet 22, a valve body shell 23, a piston rod 24, a button 25, a telescopic spring 26, a sealing ring 27, a sealing gasket 210, a liquid outlet protrusion 220, a step 221, a cylinder 222, a bottom plate 230, a piston rod through hole 231, an annular protrusion 232, an annular groove 3, an adapter 30, a first connecting joint 31, an annular groove 32, a connecting block 300, a connecting head protrusion 4, a hard adapter 5, a connecting pipe 6, a liquid filling joint 60, a sealing cover 61 and an interface.

Detailed Description

The present utility model will be further described in connection with the following examples which are to be construed as illustrative and not limiting the scope of the utility model. The implementation conditions used in the examples may be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are generally those in routine experiments. Furthermore, directional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., in the present utility model are used only with reference to the directions of the attached drawings, and are used for better and more clear description and understanding of the present utility model, not to indicate or imply the orientations that the present utility model must have, and thus should not be construed as limiting the present utility model.

The embodiment of the utility model is shown in fig. 1 to 6, and the suction mechanism of the bronchoscope comprises a suction pipe 1 and a control valve 2, wherein the suction pipe 1, the control valve 2 and the operation handle of the existing bronchoscope are assembled and installed during production, the existing bronchoscope comprises the operation handle, an insertion pipe, a probe and other parts, a clamp channel is arranged in the insertion pipe, the suction pipe 1 is fixed on the operation handle and protrudes out of the operation handle, and is used for being connected with a liquid storage device for containing sucked liquid, and the control valve 2 is used for controlling the suction pipe 1 to perform suction; the control valve 2 is provided with a liquid inlet 20 and a liquid outlet 21 at two opposite sides, namely, the liquid inlet 20 is arranged in the direction facing the front end of the operating handle, the liquid outlet 21 is arranged in the direction facing the rear end of the operating handle, and the sucked liquid enters the control valve 2 from the clamp channel of the insertion tube through the liquid inlet 20 and then flows out through the liquid outlet 21; the tail part of the liquid suction pipe 1 is connected with an adapter 3 in a sealing way, and a first connecting head 30 with the axis perpendicular to the axis of the liquid suction pipe 1 and communicated with the liquid suction pipe 1 extends on the adapter 3; the hard transfer tube 4 with an S-shaped structure is connected on the first connecting head 30 in a sealing way, one end of the hard transfer tube 4 far away from the first connecting head 30 is connected with the liquid outlet 21 of the control valve 2 in a sealing way, the first connecting head 30 is vertical to the liquid suction tube 1, the hard transfer tube 4 is a transfer tube which cannot be deformed, the S-shaped structure is convenient for connection with the first connecting head 30 and the liquid outlet 21 of the control valve 2, meanwhile, the liquid can smoothly and smoothly flow out, the problem of sudden liquid ejection or interruption cannot occur, the liquid suction tube 1 and the control valve 2 are communicated through the transfer tube 3 and the hard transfer tube 4, the liquid suction pressure in the liquid suction tube is ensured by utilizing the control valve 2, the problem of blocking caused by the fact that the liquid suction tube 1 cannot recover due to deformation is solved, the arrangement of other parts in a bronchoscope operation handle is also facilitated, meanwhile, the problem of pressing the handle cannot exist in the operation handle is solved, the problem of blocking the liquid suction tube is also ensured, and the liquid suction tube is not easy to be installed in the operation handle; the liquid inlet 20 of the control valve 2 is communicated with the forceps channel of the bronchoscope through a connecting pipe 5. In use, the bronchoscope is inserted into bronchus, then sputum is sucked through the control of the control valve 2, the sputum enters the connecting pipe 5 through the forceps channel of the bronchoscope, then enters the control valve 2, and finally enters the liquid suction pipe 1 through the transfer pipe 4 and the adapter 3 to suck the sputum.

As shown in fig. 1, 5 and 6, a liquid injection joint 6 with three connecting ports 60 is arranged between the connecting pipe 5 and the forceps channel, the liquid injection joint 6 is arranged on the bronchoscope operating handle, one port 60 is communicated with the connecting pipe 5, the other port 60 is communicated with the forceps channel, the third port 60 is positioned outside the bronchoscope operating handle, and thus the port 60 positioned outside the bronchoscope operating handle is used for connecting corresponding devices needing to enter the bronchus through the forceps channel, and simultaneously liquid injection can be carried out through the port. At this time, the sealing cover 61 is provided on the interface of the infusion connector 60 outside the bronchoscope operating handle, the sealing cover 61 is detachably mounted on the interface 60, and when the infusion connector is needed to be used, the corresponding instrument can be connected to the interface 60 by opening the sealing cover 61.

As shown in fig. 1, 3 and 4, the control valve 2 includes a valve body shell 22 with a barrel-shaped structure, a piston rod 23 movably disposed in the valve body shell 22, a button 24 disposed at an opening of the valve body shell 22 and connected with the piston rod 23, and a telescopic spring 25 sleeved outside the piston rod 23, that is, the bottom of the valve body shell 22 is closed, the top is open, and for cleaning the interior of the valve body shell 22, the valve body shell 22 includes a cylinder 221 and a bottom plate 222 hermetically connected to the bottom end of the cylinder 221, the bottom plate 222 is detachably and hermetically connected to the bottom end of the cylinder 221, and the bottom plate 222 can be in threaded connection and sealed by a sealing ring, or the bottom plate 222 is in matched clamping with the bottom end of the cylinder 221; the piston rod 23 moves up and down in the valve body shell 22, the button 24 is connected to the top of the piston rod 23, the telescopic spring 25 is sleeved on the outer wall of the piston rod 23, and the telescopic spring 25 is also positioned in the valve body shell 22; according to different use requirements, the button 24 can be a flat plate-shaped structure with the surface larger than the outer diameter of the valve body shell 22, or a cap-shaped structure sleeved on the outer wall of the valve body shell 22 with gaps, the cap-shaped structure is connected with the piston rod 23 at the center of the top, the button 24 is pressed downwards, the piston rod 23 moves downwards in the valve body shell 22, the telescopic spring 25 is compressed at the same time, the pressure disappears, and the button 24 returns to an initial unpressed state under the action of the elastic force of the telescopic spring 25; the liquid inlet 20 and the liquid outlet 21 are sequentially arranged on the side wall of the valve body shell 22 from the bottom end of the valve body shell 22 upwards, that is to say, the liquid inlet 20 is arranged at the lower part of the valve body shell 22, the liquid outlet 21 is arranged at the middle part of the valve body shell 22, and a distance is arranged between the liquid inlet and the liquid outlet in the vertical direction. The piston rod 23 is spaced from the inner wall of the valve body shell 22 by a gap, a sealing ring 26 is sleeved on the outer wall of one end far away from the button 24, a sealing gasket 27 is arranged on the bottom surface of the button 24, when the button 24 is not pressed, the lower end of the piston rod 23 is positioned between the liquid inlet 20 and the liquid outlet 21, the sealing ring 26 and the piston rod 23 are spaced apart, so that human tissue liquid such as sputum cannot be sucked, air is sucked into the valve body shell 22, the button 24 is pressed downwards under the force, the piston rod 23 moves downwards to the lower side of the liquid inlet 20, the liquid inlet 20 and the liquid outlet 21 are conducted, the opening of the upper end of the valve body shell 22 is sealed by the sealing gasket 27, a channel for entering external air is closed, and the sputum is sucked into the control valve 2; the upper part of the inner wall of the valve body shell 22 is provided with a step 220 which is propped against the telescopic spring 25 in a recessed way along the radial direction of the valve body shell 22, the lower end of the telescopic spring 25 is connected to the step 220, and the upper end of the telescopic spring can be connected to the upper part of the piston rod 23 or the bottom surface of the button 24, so that the telescopic spring 25 can conveniently extend and retract without influencing the movement of the piston rod 23. At this time, in order to facilitate the flow of the sputum sucked between the fluid inlet 20 and the fluid outlet 21, the piston rod 23 is provided with a long-strip-shaped piston rod through hole 230 in the axial direction, when the button 24 is not pressed down, the piston rod through hole 230 and the fluid inlet 20 are closed and are not conducted, the piston rod 23 moves down, the piston rod through hole 230 is conducted with the fluid inlet 20 and the fluid outlet 21, the flow channel between the two is enlarged, and the flow of the fluid is facilitated. For the connection of the sealing ring 26 on the piston rod 23, the end part of the piston rod 23 far away from one end of the button 24 is radially and outwards extended with an annular protrusion 231 abutting against the inner wall of the valve body shell 22, the size of the annular protrusion 231 is matched with the caliber of the inner wall of the valve body shell 22, an annular groove 232 is formed in the outer wall of the piston rod 23 at a position adjacent to the annular protrusion 231, the sealing ring 25 is arranged in the annular groove 232, and the sealing ring 25 is stably mounted on the piston rod 23.

As shown in fig. 2, the adaptor 3 is a joint with a circular groove 31, an annular connecting block 32 which is connected to the tail end of the pipette 1 in a matching and sealing manner extends at the opening end of the circular groove 31, the first connecting head 30 is communicated with the circular groove 31 and is arranged at a position adjacent to the bottom of the circular groove 31 on the side wall of the adaptor 3, the tail end of the pipette 1 is correspondingly provided with a connecting groove in which the connecting block 32 is inserted, the adaptor 3 is conveniently installed on the pipette 1 through the connecting block 32, the connecting block 32 is matched and installed in the connecting groove at the tail end of the pipette 1 during installation, the connecting groove can enable a liquid circulation channel at the tail end of the pipette 1 to be expanded outwards in a radial direction, for example, the connecting block 32 is of a square or circular structure, the expanded connecting groove is a connecting groove of a square or circular structure matched with the connecting block 32, and the connecting block 32 is preferably of a square structure so that relative rotation cannot be generated after the two connecting grooves are connected.

Further improvement, as shown in fig. 2, for the sealing connection between the first connector 30 and the hard adapter tube 4, the outer wall of the first connector 30 is provided with a tooth-shaped elastically deformable connector protrusion 300 surrounding the periphery Xiang Yizhou of the first connector 30, when the two are installed, the tooth-shaped structure of the connector protrusion 300 deforms, so that the first connector 30 is conveniently inserted into the hard adapter tube 4, and then the connector protrusion 300 forms a sealing structure with the inner wall of the hard adapter tube 4 in the hard adapter tube 4. Similarly, as shown in fig. 3, for the sealing connection between the liquid outlet 21 and the hard adapter tube 4, a liquid outlet protrusion 210 which is shaped like a inverted tooth and can elastically deform around the periphery Xiang Yizhou of the liquid outlet 21 is provided on the outer wall of the liquid outlet 21.

While the utility model has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims (10)

1. A bronchoscope's imbibition mechanism, characterized in that: comprises a liquid suction pipe and a control valve which are arranged on a bronchoscope operating handle; the control valve is provided with a liquid inlet and a liquid outlet which are positioned at two opposite sides; the tail part of the liquid suction pipe is connected with an adapter in a sealing way, and a first connecting head with the axis perpendicular to the axis of the liquid suction pipe and communicated with the liquid suction pipe extends on the adapter; the hard switching pipe is in an S-shaped structure and one end of the hard switching pipe, which is far away from the first connector, is in sealing connection with a liquid outlet of the control valve; the liquid inlet of the control valve is communicated with the forceps channel of the bronchoscope through a connecting pipe.

2. The bronchoscope pipetting mechanism according to claim 1, wherein a liquid injection joint with three communicated interfaces is arranged between the connecting pipe and the forceps channel, the liquid injection joint is arranged on the bronchoscope operating handle, one interface is communicated with the connecting pipe, the other interface is communicated with the forceps channel, and the third interface is positioned outside the bronchoscope operating handle.

3. The bronchoscope pipetting mechanism according to claim 2, wherein a sealing cover is arranged on the interface of the liquid injection joint outside the bronchoscope operating handle.

4. The bronchoscope imbibition mechanism of claim 1 wherein the control valve comprises a valve body shell with a barrel-shaped structure, a piston rod movably arranged in the valve body shell, a button arranged at the opening of the valve body shell and connected with the piston rod, and a telescopic spring sleeved outside the piston rod; the liquid inlet and the liquid outlet are sequentially arranged on the side wall of the valve body shell from the bottom end of the valve body shell upwards; the piston rod is spaced from the inner wall of the valve body shell by a gap, a sealing ring is sleeved on the outer wall of one end far away from the button, and a sealing gasket is arranged on the bottom surface of the button; the upper part of the inner wall of the valve body shell is concavely provided with a step which is abutted with the telescopic spring along the radial direction of the valve body shell.

5. The bronchoscope pipetting mechanism according to claim 4, wherein the piston rod is provided with an elongated piston rod through hole in an axial direction.

6. The bronchoscope pipetting mechanism of claim 4 wherein the valve housing comprises a barrel and a bottom plate sealingly attached to the bottom end of the barrel.

7. The bronchoscope pipetting mechanism of claim 4 wherein: the end part of the piston rod, which is far away from one end of the button, is radially outwards extended to be provided with an annular bulge which is abutted against the inner wall of the valve body shell, the outer wall of the piston rod is provided with an annular groove at a position adjacent to the annular bulge, and the sealing ring is arranged in the annular groove.

8. The bronchoscope pipetting mechanism according to claim 1, wherein the adapter is a connector with a circular groove, an annular connecting block which is connected to the tail end of the pipette in a matching and sealing way is extended at the opening end of the circular groove, and the first connecting block is communicated with the circular groove and is arranged on the side wall of the adapter at a position adjacent to the bottom of the circular groove.

9. The bronchoscope suction mechanism according to claim 1, wherein the outer wall of the first connector is provided with a reversed tooth-shaped connector protrusion which can elastically deform around the circumference of the first connector.

10. The bronchoscope liquid suction mechanism according to claim 1, wherein the outer wall of the liquid outlet is provided with a liquid outlet bulge which is in a shape of inverted tooth and can elastically deform around the circumference of the liquid outlet.