CN217429979U

CN217429979U - Disposable nasopharyngoscope

Info

Publication number: CN217429979U
Application number: CN202123355116.1U
Authority: CN
Inventors: 丁超
Original assignee: Cancer Hospital and Institute of CAMS and PUMC
Current assignee: Cancer Hospital and Institute of CAMS and PUMC
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-09-16
Anticipated expiration: 2031-12-29

Abstract

A disposable nasopharyngoscope comprises a display part and a tube body, wherein the upper part of the tube body is a hollow outer column matched with an inner column at the lower part of the display, and an adjusting component is arranged to adjust the advancing direction of the front end of the tube body; a data and power interface is arranged on the bottom surface of the upper part of the tube body; the front end of the lower part of the tube body is a lens end, the lower part of the tube body comprises a first pipeline and a second pipeline, a data line and a power line are arranged in the first pipeline to connect the miniature camera, the LED light source and the data interface, the upper part of the second pipeline is arranged in the side wall of the upper part of the tube body, and a wire is arranged in the second pipeline to connect the adjusting assembly and the lens end; the lower part of the tube body is provided with a hose, a snake bone structure containing a plurality of snake bone units is arranged in the hose, and the traction guide wire passes through a connecting hole arranged on the snake bone unit and is fixed on the first snake bone unit. The disposable nasopharyngoscope of the utility model has the advantages of avoiding cross infection, low cost, convenient and efficient use, etc.

Description

Disposable nasopharyngoscope

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a disposable nasopharyngoscope.

Background

The nasopharyngoscope is a medical instrument for examination and biopsy of nasopharynx, laryngeal part of pharynx and larynx, can perform surgical treatment of vocal nodule or small vocal cord polyp, and can take foreign body of pharynx, and is a commonly used endoscope.

However, the existing nasopharyngoscope is high in price, and the shell does not have a disposable function, so that cross infection is easy to occur after the nasopharyngoscope is used up and used continuously; meanwhile, the existing nasopharyngoscope has more functions, but only has the function of camera shooting and displaying in many operation processes, and the internal structure of the nasopharyngoscope is complex, so that the nasopharyngoscope is inconvenient for doctors to check and carry at any time. Therefore, a light, convenient and low-cost disposable nasopharyngoscope is needed. Usually, the working length of the nasopharyngoscope is 300mm, the observation visual field angle is 90 degrees, and the front end can be bent up and down by 130 degrees.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a disposable nasopharyngoscope, which comprises a display part and a tube body, wherein the display part comprises a display and an inner column which are connected with each other, the display is connected with a first data interface at the bottom end of the inner column, and the display receives and processes a transmitted video signal from the first data interface; a first limiting component is arranged on the outer side of the top end of the inner column and is matched with a second limiting component on the top end of the outer column on the upper part of the pipe body;

the inner column is internally provided with a lithium battery, is connected with the first data interface and supplies power to the display, the video camera and the LED light source;

the upper part of the pipe body is a hollow outer column matched with the inner column, and the outer side of the upper end of the outer column is provided with an adjusting component for adjusting the advancing direction of the front end of the pipe body; a second data interface matched with the first data interface is arranged on the inner bottom surface of the outer column at the upper part of the tube body;

the front end of the lower part of the tube body is a lens end and comprises a miniature video camera and an LED light source, the lower part of the tube body comprises a first pipeline and a second pipeline, a data line is arranged in the first pipeline to connect the miniature camera and a second data interface, a power line is also arranged in the first pipeline to connect the video camera, the LED light source and the second data interface, the upper part of the second pipeline is arranged on a first rib part at the upper part of the tube body, and a traction guide wire is arranged in the second pipeline to connect the adjusting component and the lens end, so that the rotation angle and the advancing direction of the lens end are adjusted and controlled;

the hose is arranged at the position 1.5-2.0 away from the front end of the lower part of the hose body, so that the direction of the front end of the lower part of the hose body can be conveniently adjusted by the built-in traction guide wire.

The flexible pipe is internally provided with a snake bone comprising a plurality of snake bone units, the first pipeline and the second pipeline penetrate through the snake bone units, and the traction guide wire penetrates through a connecting hole formed in each snake bone unit and is fixed on the first snake bone unit. Preferably, the number of the second pipes is at least 4.

Further, the outer diameter of the lower part of the pipe body is not more than 2.8 mm.

Further, the tube body still includes the third pipeline, and the second rib portion on tube body upper portion is set up on the upper portion of third pipeline, and one end opening is in the camera lens end, and the other end opening is in tube body upper portion outer column to be used as biopsy forceps way, suction channel, inflation channel, oxygen suppliment passageway.

Furthermore, the outer diameter of the lower part of the tube body is 2.8-6mm, the inner diameter of the third pipeline is 1.2mm, 2.2mm, 2.8mm or 3.2mm, and the third pipeline can also be used as a suction channel, an inflation channel and an oxygen supply channel.

Furthermore, the inner column is provided with a first groove and a second groove, after the inner column at the lower part of the display part is inserted into and connected with the outer column at the upper part of the pipe body, the first groove is matched with the first rib part, and the second groove is matched with the second rib part.

Furthermore, the first limiting component is a metal annular fixing ring, the second limiting component is a limiting block, and the fixing ring can be tightly fixed with the limiting block.

Furthermore, the outer column at the upper part of the tube body is made of medical hard plastic, and the lens body part at the lower part of the tube body is made of soft material for wrapping and shaping, such as common medical soft plastic, which is not listed here.

The utility model discloses a disposable nasopharyngoscope has following beneficial effect:

1. convenient, fast and small: the disposable nasopharyngoscope tube body part can be assembled and disassembled at any time, thereby saving precious time for diagnosis and treatment and improving the safety of patients;

2. high availability: the portable plug and play design has high operation efficiency, is easy to transport and install and can be used immediately;

3. cost-effectiveness: the cost caused by maintenance cost and complex maintenance is avoided, and the price of the disposable nasopharyngoscope tube body is moderate;

4. the cross infection risk is avoided, and the bag is in an aseptic state when unpacked, so that the cross infection risk is avoided;

5. the device is suitable for tracheal intubation, bronchoalveolar lavage, airway examination and biopsy, double-lumen catheter implantation and examination, bronchial occluder implantation, lung segment or sub-segment bronchial tube positioning identification and the like, and the training opportunity of auxiliary intubation of soft bronchofiberscope and nasopharyngoscope examination is improved.

Drawings

FIG. 1 is a schematic view of a disposable nasopharyngoscope according to an embodiment of the present invention;

FIG. 2 is a cross-sectional schematic view of the front end of the lower portion of the tube body according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a hose according to an embodiment of the present invention;

FIG. 4 is a side view of the snake bone unit;

fig. 5 is a schematic structural diagram of a snake bone structure according to an embodiment of the present invention;

FIG. 6 is a schematic view of another disposable nasopharyngoscope according to an embodiment of the present invention;

fig. 7 is a cross-sectional schematic view of the front end of the lower portion of another tube body according to an embodiment of the present invention;

fig. 8 is a schematic view of a hose according to an embodiment of the present invention in use;

fig. 9 is a schematic structural view of the pin and the socket.

Detailed Description

The disposable nasopharyngoscope of the present invention will be described in detail with reference to the accompanying drawings and the embodiments. Those skilled in the art will appreciate that the description is illustrative and that the invention is not limited to only this particular embodiment.

As shown in figure 1, the invention provides a disposable nasopharyngoscope which comprises a display part 1 and a tube body 2, wherein the display part 1 comprises a display 101 and an inner column 102 which are connected with each other, the display 101 can rotate left and right and back and forth, a first data interface 103 at the bottom end of the display 101 and the bottom end of the inner column 102 is connected through an inner pipeline of the inner column 102, and the first data interface 103 is connected with a second data interface 211 arranged at the bottom surface of an outer column at the upper part of the tube body 2 and used for transmitting video signals collected by a camera to the display. The first data interface 103 and the second data interface 211 are commonly a pin and socket structure, as shown in fig. 8, but the first data interface and the second data interface may also be in a form similar to an existing USB interface, or in a form similar to a video plug on a television, and will not be described in detail here.

The display 101 and the inner column 102 may also be inserted through a pin hole and firmly fixed by the first position-limiting component 104, the first position-limiting component 104 may be a metal ring-shaped fixing ring with internal threads, and the inner column 2 has corresponding external threads. It is fixed do not influence about display 101 and around rotatory, display 101 side can be provided with the interface and the data transmission interface that charge, and the top side of display is equipped with power start button, has the lithium cell in the interior post of display part, links to each other with first data interface 103, and power start button starts the back and supplies power for display and video camera and LED light source.

The top end of the inner column 102 is provided with a first stop assembly 104 to fit with a second stop assembly 213 at the top end of the outer column at the upper part of the pipe body 2.

The upper part 21 of the tube body is a hollow outer column which is matched with the inner column, and is provided with an adjusting component 212 for adjusting the angle and the direction of the lens end at the front end of the tube body 2; and a second data interface 211 matched with the display interface is arranged on the bottom surface of the upper pipe body part 21.

As shown in fig. 2, the front end of the lower tube 22 is a lens end, and includes a micro-camera 221 and an LED light source 222.

As shown in fig. 1, the lower tube 22 includes a first tube 231 and a second tube 232, the first tube 231 has a data line inside to connect the micro-camera 221 and the second data interface 211, the first tube 231 also has a power line inside to connect the micro-camera 221, the LED light source 222 and the second data interface 211, the upper portion of the second tube 232 is disposed on the first rib 251 of the upper tube 21, a pull wire is built inside to connect the adjusting assembly 212 and the lens end, and the bending angle and direction of the lens end can be controlled by manually operating the handle of the adjusting assembly 212. The handle on the adjustment assembly is preferably of a configuration that facilitates manipulation by the thumb of the operator. Meanwhile, the inner column 102 is provided with a corresponding first groove 105, and the structure can play a role in limiting and stabilizing after the inner column and the outer column are nested.

In order to increase the flexibility and the directionality of the running of the lower part of the tube body, a hose 4 is arranged at the position 1.5-2.0mm away from the front end of the lower part of the tube body. Thus, the hose can be easily angled, such as 0-180 degrees, by manually manipulating the handle of the adjustment assembly 212 under the force of the pull wire, as shown in FIG. 9, to increase the flexibility of directional adjustment.

In one embodiment, as shown in fig. 3-5, the flexible tube 4 comprises a serpentine structure 401 and a flexible material 402 (e.g., a soft plastic for medical use, having stretch-resistant and wrinkle-resistant properties) surrounding the serpentine structure, wherein the serpentine structure 401 is composed of a plurality of serpentine elements 411. The snake bone structure 402 has a cavity therein such that the first and

third canals

231 and 233 pass therethrough, the second canal 232 terminates at the last snake bone unit, and a pull guide wire passes therethrough and through each snake bone unit, for example, a connection hole is provided on the snake bone unit, the pull guide wire passes through the connection hole, and is finally fixedly connected to the first snake bone unit. Preferably, at least 4, i.e., four, guide wires are uniformly distributed on each snake bone unit so that the snake bone structure 401 can bend or change direction by 180 degrees in four directions. The adjusting assembly 212 may adopt a guide wheel rotation mode, and the guide wire is drawn to be wound on the guide wheel, and the guide wheel rotates to drive the guide wire to draw.

In one embodiment, the snake bone unit 411 is drum-shaped, and has a groove 413 at the upper end and a protrusion 412 corresponding to the groove at the lower end, and the two snake bone units are engaged together by the protrusion and the groove and can rotate flexibly. When the two snake bone units 411 are engaged, the lower edge of one snake bone unit has a certain angle (about 10 degrees) with the upper edge of the other snake bone unit, and the larger the angle is, the more flexible the bending is, thereby enabling the snake bone structure 401 to bend 180 degrees.

The disposable nasopharyngoscope as shown in fig. 1 only has a video acquisition function, and meets the requirement of checking the lung and respiratory tract conditions in the operation, and the lens end is only provided with the miniature camera and the light source, so the outer diameter of the lower part 22 of the tube body can be made smaller, for example, not more than 2.8mm, and the condition of a tiny pipeline can be better explored.

As shown in fig. 6 and 7, the tube body further includes a third duct 233, an upper portion of the third duct 233 penetrates through a bottom surface of the upper portion 21 of the tube body, and is disposed in the second rib 252, and one end 223 thereof is open to the lens end and the other end 234 thereof is open to the upper portion of the tube body to serve as a biopsy forceps channel. At this time, the inner column of the display end is provided with a corresponding second groove 106, and the inner column and the outer column can play a role in limiting and stabilizing after being nested. The external diameter of the lower part of the tube body of the disposable nasopharyngoscope with biopsy forceps channel is increased, and is 2.8-6mm as the same as the common nasopharyngoscope. The third pipeline, namely the biopsy forceps channel, can have various specifications, for example, the inner diameter of the forceps channel is 1.2mm, and the biopsy forceps channel can be used as a diagnosis endoscope for peripheral diseases such as nasopharynx and larynx and the like through a cell brush and biopsy forceps with the diameter of 1.0 mm; the internal diameter of the forceps channel is 2.2mm, so that the forceps channel can be used together with various endoscope accessories, and the internal diameter of the forceps channel can be 2.8mm larger than that of the forceps channel or 3.2mm larger than that of the forceps channel. In addition, the clip channel can also be adapted to other functional accessories attached to the nasopharyngoscope, such as a suction channel, an inflation channel, an oxygen supply channel and the like.

In one embodiment, the first stop assembly 104 has a snap, and the second stop assembly 213 is a stop, the snap being capable of tightly engaging with the stop. Of course, the form of the limiting component is various, and the above description is only illustrative and not restrictive.

In order to reduce the cost, the upper outer column of the tube body 2 is made of hard material, such as common medical hard plastic, and the lower lens body part is made of soft material for wrapping and shaping, such as common medical soft plastic, which is not listed here.

It will be understood by those skilled in the art that the foregoing is illustrative and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A disposable nasopharyngoscope is characterized by comprising a display part and a tube body, wherein the display part comprises a display and an inner column which are connected with each other, the display is connected with a first data interface at the bottom end of the inner column, and a transmitted video signal is received and processed from the first data interface; a first limiting component is arranged on the outer side of the top end of the inner column and is matched with a second limiting component on the top end of the outer column on the upper part of the pipe body;

a hose is arranged at the position 1.5-2.0mm away from the front end of the lower part of the pipe body, so that the direction of the front end of the lower part of the pipe body can be conveniently adjusted by a built-in traction guide wire;

a snake bone structure comprising a plurality of snake bone units is arranged in the hose, the first pipeline and the second pipeline penetrate through the snake bone units, and the traction guide wire penetrates through a connecting hole formed in each snake bone unit and is fixed on the first snake bone unit;

the snake bone units are drum-shaped, the upper ends of the snake bone units are provided with grooves, the lower ends of the snake bone units are provided with protrusions corresponding to the grooves, and after the two snake bone units are embedded, the lower edge of one snake bone unit and the upper edge of the other snake bone unit form a certain angle.

2. A disposable nasopharyngoscope according to claim 1, wherein the external diameter of the lower part of the shaft is no more than 2.8 mm.

3. The disposable nasopharyngoscope according to claim 1, wherein the tube body further comprises a third tube, and an upper portion of the third tube is disposed on the second rib portion of the upper portion of the tube body, and one end of the third tube is open to the lens end, and the other end of the third tube is open to the outer column of the upper portion of the tube body, so as to be used as a biopsy forceps channel, a suction channel, an inflation channel, and an oxygen supply channel.

4. A disposable nasopharyngoscope according to claim 3, wherein the external diameter of the lower part of the shaft is 2.8-6mm and the internal diameter of the third conduit is 1.2mm, 2.2mm, 2.8mm or 3.2 mm.

5. A disposable nasopharyngoscope according to claim 3, wherein the inner post is provided with a first groove and a second groove, and the first groove is adapted to the first rib and the second groove is adapted to the second rib after the inner post at the lower portion of the display part is inserted into the outer post at the upper portion of the body.

6. The disposable nasopharyngoscope according to claim 1, wherein the first limiting component is a metal ring-shaped fixing ring, the second limiting component is a limiting block, and the fixing ring can be tightly fixed with the limiting block.

7. A disposable nasopharyngoscope according to claim 1, wherein the second conduit is at least 4.

8. A disposable nasopharyngoscope according to any one of claims 1-7, wherein the outer post of the upper body is made of medical hard plastic and the lower body is wrapped and made of medical soft plastic.