CN215128294U

CN215128294U - Endoscope head end portion and endoscope

Info

Publication number: CN215128294U
Application number: CN202022845273.XU
Authority: CN
Inventors: 胡舜; 荆峰
Original assignee: Sonoscape Medical Corp
Current assignee: Sonoscape Medical Corp
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-12-14
Anticipated expiration: 2030-11-30

Abstract

The utility model provides an endoscope head portion and endoscope including this endoscope head portion. Wherein, this endoscope head end portion includes: a base comprising a base surface; a lens embedded in the base and protruding relative to the base surface; the nozzle is connected with the base and is provided with a cleaning flow channel, a cleaning outlet and a first flow guide surface; the cleaning flow channel can be used for fluid to flow and is communicated with the cleaning outlet, the cleaning outlet faces the lens, the first flow guide surface is located on one side, far away from the base, of the cleaning flow channel, and the first flow guide surface is gradually close to the base along the direction that the fluid flows out of the cleaning flow channel through the cleaning outlet so as to prevent the fluid flowing out of the self-cleaning outlet from being directly sprayed to the end face of the lens. According to the above technical scheme, the utility model discloses can avoid remaining in the fluid pipeline and the terminal surface that the water droplet that is taken out by gas splashes the camera lens when weathering the camera lens, send the effect of weathering after the water better, the whole cleaning efficiency height of camera lens.

Description

Endoscope head end portion and endoscope

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an endoscope head portion and endoscope.

Background

The imaging objective lens of the endoscope is usually positioned on the end surface of the end part of the endoscope head, and the surface of the lens is adhered by foreign matters such as mucous membranes in the human body because the endoscope needs to extend into the human body. In order to avoid the influence of foreign matters on the imaging quality, the nozzle is required to be arranged at the head end part to clean the lens, specifically, water is firstly sent to the lens through the nozzle to wash the surface of the lens, and after the foreign matters are washed clean, the air is sent to the lens through the nozzle to blow away or blow dry water stains on the surface of the lens.

However, in practice, the inventors of the present application found that: because the nozzle supplies water and supplies air to share the fluid pipeline, water drops can be remained in the fluid pipeline after water is supplied, and in the nozzle air supply process, the remained water drops are easily sprayed to the surface of the lens along with gas, so that the blow-drying effect is influenced, and the cleaning efficiency of the lens is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an endoscope head portion to promote the nozzle to the effect that weathers of camera lens, promote the cleaning efficiency.

The utility model also provides an endoscope that has above-mentioned endoscope cephalic region.

According to an embodiment of the first aspect of the present invention, an endoscope tip portion includes:

a base comprising a base surface;

the lens is embedded in the base and protrudes relative to the base surface;

the nozzle is connected with the base and provided with a cleaning flow channel, a cleaning outlet and a first flow guide surface, the cleaning flow channel can be used for fluid to flow, the cleaning flow channel is communicated with the cleaning outlet, the cleaning outlet faces the lens, the first flow guide surface is positioned on one side of the cleaning flow channel, which is far away from the base, and the first flow guide surface gradually approaches the base along the direction that the fluid flows out of the cleaning flow channel through the cleaning outlet so as to avoid that the fluid flowing out of the cleaning outlet is directly sprayed to the end face of the lens.

According to some embodiments of the utility model, the minimum point of first water conservancy diversion face is higher than the terminal surface of camera lens.

According to some embodiments of the present invention, the first flow guiding surface is a curved surface.

According to some embodiments of the invention, the first flow guiding surface is an inclined surface.

According to some embodiments of the present invention, the endoscope head end portion further comprises a second flow guiding surface, the second flow guiding surface surrounds the lens, and the second flow guiding surface extends from the end face of the lens to the base surface.

According to some embodiments of the present invention, the extension plane of the first flow guiding surface intersects with the second flow guiding surface, so that the fluid flowing out from the cleaning outlet can be directly sprayed to the second flow guiding surface.

According to some embodiments of the utility model, the nozzle includes embedding portion and bulge, the embedding portion with the bulge links to each other, the embedding portion embedding extremely in the base, the bulge for the base is protruding, the embedding portion with be formed with the orientation between the bulge the opening of camera lens, the base shelters from the part the opening is in order to form wash the export.

According to some embodiments of the invention, the end of the protruding portion protrudes towards a direction close to the lens with respect to the side wall of the embedding portion.

According to the utility model discloses endoscope nose portion has following beneficial effect at least: a first flow guide surface is arranged on one side of the cleaning flow channel, which is far away from the base, and the first flow guide surface gradually approaches the base along the direction that the fluid flows out of the cleaning flow channel through the cleaning outlet, so that the fluid flowing out of the cleaning outlet is prevented from being directly sprayed to the end surface of the lens; therefore, when supplying air through the nozzle, because the gas firstly sprays towards the edge of camera lens under the effect of first water conservancy diversion face, so, remain in the fluid pipeline and can not be taken to the terminal surface of camera lens (promptly, the upper surface of camera lens) because of receiving the blockking of the edge of camera lens by the water droplet that gas was taken out, avoid supplying air the condition that the residual water droplet in-process fluid pipeline splashes to the camera lens surface from this for the effect of drying after the water supply is better, save the time of drying, and then promoted the cleaning efficiency to the camera lens.

An endoscope in accordance with an embodiment of the second aspect of the present invention includes an endoscope tip portion as described above.

According to some embodiments of the invention, the endoscope further comprises a fluid connector, a first fluid transport line and a second fluid transport line, the fluid connector comprising a first input, a second input and an output, the first fluid transport line being connected to the first input, the second fluid transport line being connected to the second input, the output being connected to the nozzle.

The endoscope of the embodiment of the present invention has the same beneficial effects as described above, and the description thereof is omitted here.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

FIG. 1 is a schematic perspective view of an endoscope head end in some embodiments;

FIG. 2 is a schematic view of the internal structure of the endoscope in some embodiments;

FIG. 3 is an enlarged view of area A of FIG. 1;

FIG. 4 is an enlarged view of area B of FIG. 2;

FIG. 5 is a schematic view of the nozzle of FIG. 4 assembled with the base;

FIG. 6 is a schematic view of the assembly of the nozzle and the base in other embodiments.

Reference numerals: 101-base, 102-lens, 103-nozzle, 104-cleaning outlet, 201-cleaning flow channel, 202-first flow guide surface, 203-second flow guide surface, 204-base surface, 205-fluid connector, 206-first fluid conveying pipeline, 207-second fluid conveying pipeline, 208-output end, 209-second input end, 210-first input end, 301-lighting assembly, 302-instrument inlet and outlet; 401-projection, 402-insert.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, and a plurality of means are two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 present 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.

Referring to fig. 1 and 2, the present invention provides an endoscope head portion comprising a base 101, a lens 102 and a nozzle 103, the base 101 comprising a base surface 204, the lens 102 being embedded in the base 101, and the lens 102 projecting relative to the base surface 204. The nozzle 103 is connected to the base 101, and the nozzle 103 has a cleaning outlet 104, a cleaning flow path 201, and a first flow guide surface 202. The cleaning channel 201 may allow fluid to flow, and specifically, the cleaning channel 201 may allow fluid for cleaning the lens 102 or air for drying the lens 102 to flow, the fluid for cleaning the lens 102 may be water, and the air for drying the lens 102 may be air. The cleaning outlet 104 faces the lens 102, the cleaning flow channel 201 is communicated with the cleaning outlet 104, and the fluid flowing in the cleaning flow channel 201 finally flows out of the cleaning flow channel 201 through the cleaning outlet 104 and flows to the lens 102. Referring to fig. 2 and 4, the first flow guiding surface 202 is located on a side of the cleaning flow channel 201 away from the base 101, and in a direction in which the fluid flows out of the cleaning flow channel 201 through the cleaning outlet 104, the first flow guiding surface 202 gradually approaches the base 101, so that the fluid flowing out from the cleaning outlet 104 is firstly sprayed toward an edge of the lens 102 (i.e., a portion of the lens 102 protruding from the base surface 204) rather than directly toward an end surface of the lens 102.

The process of cleaning the lens 102 is briefly described below. First, a liquid for cleaning the lens 102 is ejected from the nozzle 103 to clean the lens 102; then, the gas is ejected from the nozzle 103, and the gas blows or blows off the liquid remaining on the surface of the lens 102. Wherein, because the first guiding surface 202 gradually approaches to the base 101 along the direction that the fluid flows out of the cleaning flow channel 201 through the cleaning outlet 104, when the nozzle 103 sends the liquid, the cross section of the cleaning outlet 104 gradually decreases along the direction toward the lens 102 due to the first guiding surface 202, so that the outflow speed of the liquid becomes high, and the liquid has a strong flushing force, after flowing out from the cleaning outlet 104, the liquid is firstly sprayed to the edge of the lens 102, and then under the action of the impact force between the edge of the lens 102 and the liquid, the liquid can effectively contact the whole surface of the lens 102, thereby cleaning the lens 102; when the nozzle 103 supplies air, because the water drops remained in the fluid pipeline are relatively less and the weight is lighter, and the air is firstly sprayed to the edge of the lens 102 under the action of the first flow guide surface 202, the water drops remained in the fluid pipeline and carried out by the air can be blocked by the edge of the lens 102 and cannot be further carried to the end surface of the lens 102 by the air (referring to fig. 2, the end surface of the lens 102 refers to the upper side surface of the lens 102), the condition that the air is continuously supplied for drying due to the fact that the liquid drops are sprayed to the end surface of the lens 102 in the process of drying the lens 102 by blowing is avoided, and therefore the drying efficiency of the lens 102 and the whole cleaning efficiency are improved.

Referring to fig. 4, to facilitate production of the nozzle 103, the first flow guiding surface 202 may be provided as a slope; in other embodiments, the first flow guiding surface 202 may also be a curved surface when the guiding effect of the first flow guiding surface 202 is satisfied, and relatively speaking, the curved surface of the first flow guiding surface 202 is beneficial to reduce the intensity of the collision between the fluid and the first flow guiding surface 202, so as to be beneficial to ensuring the stability of the fluid pressure and the fluid flow.

Referring to fig. 2 and 4, in some embodiments, the lowest point of the first flow guiding surface 202 is higher than the end surface of the lens 102, i.e., the distance between the lowest point of the first flow guiding surface 202 and the base surface 204 is greater than the distance between the end surface of the lens 102 and the base surface 204. The height ratio between the respective surfaces is compared with the up/down direction positions with reference to the direction of fig. 2; referring to fig. 2, the lowest point of the first flow guide surface 202 is located at an end of the first flow guide surface 202 near the cleaning outlet 104, i.e., the lowest point of the first flow guide surface 202 is located at the left end of the first flow guide surface 202. Alternatively, referring to fig. 4, a height difference between the lowest point of the first flow guiding surface 202 and the end surface of the lens 102 is h. In this embodiment, because the fluid ejected from the cleaning outlet 104 does not directly act on the surface of the lens 102 under the action of the first flow guide surface 202, the cleaning efficiency of the lens 102 is not affected even if the height of the lens 102 protruding from the base surface 204 is reduced, and the lens 102 can be better protected and the lens 102 is prevented from colliding after the height of the lens 102 protruding from the base surface 204 is reduced.

Referring to fig. 2 and 3, in some embodiments, the base 101 includes a base surface 204 and a second flow guide surface 203, the base surface 204 is connected to the second flow guide surface 203, the second flow guide surface 203 is disposed around an outer edge of the lens 102, one side of the second flow guide surface 203 is connected to the base surface 204, the other side of the second flow guide surface 203 extends to the outer edge of the lens 102, and the second flow guide surface 203 extends from an end surface of the lens 102 to the base surface 204 in an inclined manner. Specifically, referring to fig. 3 and 4, the lens 102 protrudes upward with respect to the base surface 204, and the second flow guiding surface 203 gradually approaches toward the center of the lens 102 from bottom to top. In some embodiments, the second flow guiding surface 203 is shaped like a side surface of a circular truncated cone. Under the action of the airflow, the liquid on the end surface of the lens 102 can flow down along the second flow guiding surface 203, and the residual liquid on the lens 102 is less, so that the drying effect is improved.

Further, referring to fig. 4, a part of the second guide surface 203 is disposed between the nozzle 103 and the lens 102, and an extension surface of the first guide surface 202 intersects the second guide surface 203, so that the fluid flowing out from the cleaning outlet 104 is directly sprayed to the second guide surface. Therefore, in this embodiment, when the liquid is sent through the nozzle 103, since the second flow guiding surface 203 is obliquely arranged, the liquid can be diffused to the edge area and the surface area of the lens 102 along the second flow guiding surface 203 after being sprayed to the second flow guiding surface 203, so that stains in all areas on the lens 102 can be quickly and completely washed, and the cleaning efficiency is further improved; when air is supplied through the nozzle 103, water drops remained in the fluid pipeline and carried out by the air can be discharged along the second flow guide surface 203 to the periphery after being blocked by the second flow guide surface 203, and the drying efficiency is further improved. It can be seen that, in this embodiment, through the cooperation between the first flow guide surface 202 and the second flow guide surface 203, the cleaning efficiency and the drying efficiency of the lens 102 can be improved at the same time.

Referring to fig. 4 and 5, the nozzle 103 includes an embedded portion 402 and a protruding portion 401, the embedded portion 402 is connected to the protruding portion 401, the embedded portion 402 is substantially cylindrical, the embedded portion 402 is embedded in the base 101, the protruding portion 401 protrudes with respect to the base 101, an opening facing the lens 102 is formed between the embedded portion 402 and the protruding portion 401, and the base 101 shields a portion of the opening to form the purge outlet 104. Referring to fig. 5, an opening is formed between the protruding portion 401 and the sidewall of the embedding portion 402 on the side close to the lens, a part of the opening is embedded in the base 101 so as to be shielded by the base 101, and a part of the opening not shielded by the base 101 is the cleaning outlet 104.

In contrast to fig. 5 and 6, in the arrangement shown in fig. 5, the side of the projection 401 close to the base surface (corresponding to the lower side of the projection 401 in fig. 5) need not be provided with a wall surface. Therefore, compared with the mode of directly defining the cleaning outlet 104 through the wall surface of the nozzle 103, under the condition that the size of the cleaning outlet 104 is kept the same and the height difference between the first flow guide surface 202 and the end surface of the lens 102 is kept the same, the arrangement mode shown in fig. 5 is more favorable for reducing the height of the nozzle 103 and the lens 102 protruding out of the base 101, so that the structure of the end part of the endoscope head is more compact, and the probability that the nozzle 103 and the lens 102 are collided is reduced.

Referring to fig. 4 and 5, an end of the protrusion 401 protrudes in a direction close to the lens 102 with respect to a sidewall of the insertion portion 402 so as to guide the fluid in the cleaning flow channel 201 to a position where the lens 102 is located. For example, with the orientation of fig. 4 and 5 as a reference, the lens 102 is located on the left side of the nozzle 103, and the protruding portion 401 protrudes toward the left side with respect to the side wall of the embedded portion 402 so as to direct the fluid toward the position where the lens 102 is located.

Referring to fig. 3, the endoscope head further comprises an illumination assembly 301, the illumination assembly 301 is connected to the base 101 (specifically, the illumination assembly 301 may be embedded in the base 101), the illumination assembly 301 can emit light to illuminate an imaging objective lens (i.e., the lens 102) of the endoscope, and a specific light emitting component in the illumination assembly 301 may be an LED chip. The endoscope head further comprises an instrument channel (not shown in detail) located inside the base 101 and an instrument access 302 for the passage of some medical instruments (e.g. some miniature surgical instruments); an instrument access opening 302 opens in the base surface 204 and a medical instrument can extend from within the instrument channel through the instrument access opening 302 to outside the base 101 for performing some related medical procedure.

The utility model also provides an endoscope, this endoscope include above-mentioned embodiment the endoscope head portion, this endoscope is less to the better and whole volume of the cleaning performance of self camera lens 102.

Referring to fig. 2, in some embodiments, the endoscope includes a fluid coupling 205, a first fluid delivery line 206, and a second fluid delivery line 207, the fluid coupling 205 including a first input 210, a second input 209, and an output 208, the first fluid delivery line 206 coupled to the first input 210, the second fluid delivery line 207 coupled to the second input 209, and the output 208 coupled to the nozzle 103. Here, the connection between the first fluid delivery pipe 206, the second fluid delivery pipe 207, and the nozzle 103 and the fluid connector 205 can be realized by sleeving the pipe fittings. The first fluid conveying pipeline 206 is used for conveying a first fluid (for example, gas), the second fluid conveying pipeline 207 is used for conveying a second fluid (for example, liquid), the first fluid flows outwards after sequentially passing through the first fluid conveying pipeline 206, the fluid joint 205 and the nozzle 103, and the second fluid flows outwards after sequentially passing through the second fluid conveying pipeline 207, the fluid joint 205 and the nozzle 103.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims

1. An endoscope tip portion, comprising:

a base comprising a base surface;

the lens is embedded in the base and protrudes relative to the base surface;

2. The endoscope tip of claim 1, wherein a lowest point of the first flow guide surface is higher than an end surface of the lens.

3. The endoscope tip of claim 1, wherein the first flow guide surface is curved.

4. The endoscope head end of claim 1, wherein the first flow guide surface is a beveled surface.

5. The endoscope tip of any of claims 1-4, further comprising a second flow guide surface surrounding the lens, wherein the second flow guide surface extends obliquely from the end surface of the lens to the base surface.

6. The endoscope head end of claim 5 wherein the extension of the first flow guide surface intersects the second flow guide surface to enable fluid exiting the cleaning outlet to be directed toward the second flow guide surface.

7. The endoscope head end of claim 1, wherein the nozzle comprises an insertion portion and a projection portion, the insertion portion is connected to the projection portion, the insertion portion is inserted into the base, the projection portion is projected with respect to the base, an opening toward the lens is formed between the insertion portion and the projection portion, and the base blocks a part of the opening to form the cleaning outlet.

8. The endoscope tip according to claim 7, wherein an end of the protruding portion protrudes in a direction approaching the lens with respect to a side wall of the insertion portion.

9. An endoscope, characterized by comprising an endoscope head portion according to any one of claims 1 to 8.

10. The endoscope of claim 9, further comprising a fluid coupling, a first fluid delivery line, and a second fluid delivery line, the fluid coupling comprising a first input, a second input, and an output, the first fluid delivery line connected to the first input, the second fluid delivery line connected to the second input, and the output connected to the nozzle.