CN216495207U - Novel negative pressure channel of endoscope - Google Patents
Novel negative pressure channel of endoscope Download PDFInfo
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- CN216495207U CN216495207U CN202122494995.XU CN202122494995U CN216495207U CN 216495207 U CN216495207 U CN 216495207U CN 202122494995 U CN202122494995 U CN 202122494995U CN 216495207 U CN216495207 U CN 216495207U
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Abstract
The utility model discloses a novel negative pressure channel of an endoscope, which comprises: the device comprises a negative pressure connector, a negative pressure valve, a first connecting pipe, a tee joint, a luer connector and a working channel; the negative pressure connector is communicated with the negative pressure valve, the negative pressure valve is communicated with the first connecting pipe, and the tee joint is respectively communicated with the first connecting pipe, the luer connector and the working channel; one end of the tee joint is a step hole, and one end of the working channel is inserted into the step hole. Because the step hole of equidimension not can be used for connecting the working channel of unidimensional not to satisfy and provide manifold working channel to different surgical instruments specifications, in process of production, only need to change different tee bend and working channel, alright with obtain the endoscope part to other surgical instruments, other parts all can be general, thereby can conveniently switch to different endoscope product model production, effectively reduce enterprise development cost, improve production efficiency.
Description
Technical Field
The utility model relates to the technical field of endoscopes, in particular to a novel negative pressure channel of an endoscope.
Background
An endoscope is a common instrument used in clinical medicine diagnosis and treatment, and can enter a human body through an inherent mouth, hole, channel, etc. of the human body or enter the human body through an incision formed by surgery. The endoscope doctor can directly observe the pathological changes in the body, which is more beneficial to the diagnosis and treatment of the doctor.
In the endoscope, a negative pressure channel is used as an important component of the endoscope, acts on internal tissues of a human body, and transmits and adsorbs tissue liquid and foreign matters to the outside of the human body through the negative pressure channel.
In the endoscope, the negative pressure channel can also be used as a channel for the intervention of surgical instruments, and enters the inside of human tissues through the three-way external joint, so that the extraction of tissue samples and the treatment effect of the tissues are realized. The pore of the negative pressure channel in the disposable endoscope in the prior art is single, various working channels can not be provided for different specifications of surgical instruments, an independent endoscope needs to be designed for each surgical instrument, the number of parts which can be used universally is small, the research and development cost is high, and the development of enterprises is not facilitated.
The negative pressure suction valve body in the endoscope in the prior art has the technical problems of small gas flow, inconvenient suction control, low sensitivity of the suction valve, incapability of ensuring timely suction of body fluid and focus tissues and influence on the diagnosis effect and surgical treatment.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the novel negative pressure channel of the endoscope is provided, so that various working channels can be conveniently provided according to different specifications of surgical instruments; the air flow of the negative pressure suction valve is improved, and the suction effect is enhanced.
The technical scheme of the utility model is as follows: providing a novel negative pressure channel of an endoscope, comprising: the device comprises a negative pressure connector, a negative pressure valve, a first connecting pipe, a tee joint, a luer connector and a working channel; the negative pressure connector is communicated with the negative pressure valve, the negative pressure valve is communicated with the first connecting pipe, and the tee joint is respectively communicated with the first connecting pipe, the luer connector and the working channel; one end of the tee joint is a step hole, and one end of the working channel is inserted into the step hole. Different sizes of step hole can be used for connecting not unidimensional working channel to satisfy and provide manifold working channel to different surgical instruments specifications, in process of production, only need to change different tee bend and working channel, alright in order to obtain the endoscope part to other surgical instruments, other parts all can be general, thereby can effectively reduce the research and development cost, be favorable to the enterprise development.
The negative pressure valve includes: the suction tube comprises an upper tube body, a lower tube body connected with the lower end of the upper tube body, a flexible button movably sleeved at the upper end of the upper tube body, a valve rod, a sealing ring and a suction tube connected with the upper tube body; the valve stem includes: the upper cover is respectively connected with the supporting block and the connecting rod, and the sealing ring is sleeved at the lower end of the connecting rod; the upper pipe body is provided with an upper cavity, the lower pipe body is provided with a lower cavity, the suction pipe is provided with a suction cavity, the flexible button is provided with a ventilation cavity and a sealing groove, a pressing opening is arranged in the sealing groove, the ventilation cavity is communicated with the pressing opening, the upper cavity is respectively communicated with the suction cavity and the ventilation cavity, the lower end of the upper cavity is a bell mouth, the valve rod penetrates through the pressing opening, the ventilation cavity and the upper cavity and extends into the lower cavity, the upper cover covers the sealing groove, the supporting block is arranged in the sealing groove and heightens the upper cover to form a gap between the upper cover and the sealing groove, and the outer diameter of the sealing ring is larger than the minimum diameter of the bell mouth; the upper cavity is communicated with the outside through the ventilation cavity and the gap; and a limiting block is arranged on the outer side of the upper pipe body. Preferably, the flexible button is made of silica gel.
In the initial state, the sealing ring seals the bell mouth, the suction tube is connected with the negative pressure device, and the lower tube body is connected with the insertion part of the endoscope. When the body fluid and the focus tissue are not required to be attracted, the flexible button is not pressed, at the moment, the sealing ring seals the horn mouth, the negative pressure device cannot suck the lower cavity, and the upper cavity is communicated with the outside through the ventilation cavity and the gap, so that the negative pressure device can only suck air. When body fluid and focus tissue need be attracted, press flexible button, flexible button can press on the stopper, and at this moment, flexible button just can the extrusion deformation, and the flexible button of extrusion deformation can seal the clearance between upper cover and the seal groove completely, and the sealing washer will stretch into down in the cavity, and the sealing washer can not seal the horn mouth, so negative pressure device alright with attract body fluid and focus tissue. The switching of air pumping, body fluid pumping and focus tissues can be realized only by pressing the flexible button, the body fluid and the focus tissues are conveniently sucked, the operation of a doctor is greatly facilitated, and the switching is simple and convenient. Furthermore, the button made of the silica gel material is adopted, and after the flexible button is not pressed any more, the flexible button can be restored to an initial state according to the elasticity of the flexible button, so that the use of a user is greatly facilitated.
The suction pipe is communicated with the negative pressure connector through a second connecting pipe, and the lower pipe body is communicated with the first connecting pipe.
The negative pressure connector is provided with a mounting plate, and the mounting plate is used for mounting and fixing the negative pressure connector.
The connecting rod is provided with a groove, and the groove can increase the gap between the horn hole and the connecting rod, so that the body fluid and the focus tissue can be attracted conveniently.
The lower pipe body is provided with a buckle, the upper pipe body is provided with a clamping hole, and the buckle is inserted into the clamping hole. The connection mode of the buckle and the clamping hole is adopted, and assembly and production are facilitated.
And a sealing ring is arranged on a joint surface between the upper pipe body and the lower pipe body and is used for reinforcing the sealing between the upper pipe body and the lower pipe body.
The working channel is bonded in the step hole through glue, and the tee joint is in threaded connection with the Ruhr connector.
By adopting the scheme, the novel negative pressure channel of the endoscope is provided, and the stepped holes with different sizes can be used for connecting the working channels with different sizes, so that various working channels can be provided for different specifications of surgical instruments, in the production process, the parts of the endoscope for other surgical instruments can be obtained only by replacing different tee joints and working channels, and other parts can be universal, so that the research and development cost can be effectively reduced, and the development of enterprises is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of another embodiment of the present invention;
FIG. 3 is a schematic structural view of a tee;
FIG. 4 is a schematic structural view of a negative pressure valve;
FIG. 5 is a cross-sectional view of the negative pressure valve;
FIG. 6 is an exploded view of the negative pressure valve;
FIG. 7 is a schematic structural view of the upper tube body;
FIG. 8 is a schematic structural view of the lower tube body;
FIG. 9 is a schematic view of a flexible button;
fig. 10 is a schematic view of the valve stem.
Detailed Description
The utility model is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1-10, the present invention provides a novel negative pressure channel of an endoscope, comprising: the negative pressure connector 10, the negative pressure valve 60, the first connecting pipe 20, the tee joint 30, the luer connector 40 and the working channel 50; the negative pressure connector 10 is communicated with the negative pressure valve 60, the negative pressure valve 60 is communicated with the first connecting pipe 20, and the tee joint 30 is respectively communicated with the first connecting pipe 20, the luer connector 40 and the working channel 50; one of the three-way valve 30 is a stepped hole 31, and one end of the working channel 50 is inserted into the stepped hole 31. Different sizes of step hole 31 can be used for connecting different sizes of working channel 50 to satisfy and provide manifold working channel 50 to different surgical instruments specifications, in process of production, only need to change different tee bend 30 and working channel 50, alright in order to obtain the endoscope part to other surgical instruments, other parts all can be general, thereby can effectively reduce the research and development cost, be favorable to the enterprise development.
The negative pressure valve 60 includes: the suction tube comprises an upper tube body 61, a lower tube body 62 connected with the lower end of the upper tube body 61, a flexible button 63 movably sleeved at the upper end of the upper tube body 61, a valve rod 64, a sealing ring 65 and a suction tube 66 connected with the upper tube body 61; the valve stem 64 includes: the upper cover 67, the supporting block 68, the connecting rod 69 connected with said upper cover 67 separately, the said seal ring 65 is fitted on the lower end of the said connecting rod 69; the upper pipe body 61 is provided with an upper cavity 70, the lower pipe body 62 is provided with a lower cavity 71, the suction pipe 66 is provided with a suction cavity 72, the flexible button 63 is provided with a ventilation cavity 73 and a sealing groove 74, a pressing opening 75 is arranged in the sealing groove 74, the ventilation cavity 73 is communicated with the pressing opening 75, the upper cavity 70 is respectively communicated with the suction cavity 72 and the ventilation cavity 73, the lower end of the upper cavity 70 is a bell mouth, the valve rod 64 penetrates through the pressing opening 75, the ventilation cavity 73 and the upper cavity 70 and extends into the lower cavity 71, the upper cover 67 covers the sealing groove 74, the support block 68 is arranged in the sealing groove 74 and elevates the upper cover 67 to form a gap between the upper cover 67 and the sealing groove 74, and the outer diameter of the sealing ring 65 is larger than the minimum diameter of the bell mouth; the upper cavity 70 is communicated with the outside through the ventilation cavity 73 and the gap; the outer side of the upper pipe body 61 is provided with a limiting block 80. Preferably, the flexible button 63 is made of silica gel.
In the initial state, the bell mouth is sealed by the seal ring 65, the suction tube 66 is connected to the negative pressure device, and the lower tube 62 is connected to the insertion portion of the endoscope. When the body fluid and the focus tissue do not need to be sucked, the flexible button 63 is not pressed, at the moment, the sealing ring 65 seals the bell mouth, the negative pressure device cannot suck the lower cavity 71, and the upper cavity 70 is communicated with the outside through the ventilation cavity 73 and the gap, so that the negative pressure device can only suck air. When body fluid and focus tissues need to be attracted, the flexible button 63 is pressed down, the flexible button 63 is pressed on the limiting block, at the moment, the flexible button 63 is extruded and deformed, the gap between the upper cover 67 and the sealing groove 74 is completely sealed by the extruded and deformed flexible button 63, the sealing ring 65 extends into the lower cavity 71, the horn mouth cannot be sealed by the sealing ring 65, and therefore the body fluid and the focus tissues can be attracted by the negative pressure device. The switching between air pumping and body fluid and focus tissues can be realized only by pressing the flexible button 63, the body fluid and the focus tissues are conveniently sucked, the operation of a doctor is greatly facilitated, and the switching is simple and convenient. Further, the button made of silica gel is adopted, and after the flexible button 63 is not pressed, the flexible button 63 can be restored to the initial state according to the elasticity of the flexible button, so that the use of a user is greatly facilitated.
The suction tube 66 is communicated with the negative pressure connector 10 through a second connecting tube 21, and the lower tube body 62 is communicated with the first connecting tube 20.
The negative pressure connector 10 is provided with a mounting plate 11, the mounting plate 11 is used for mounting and fixing the negative pressure connector 10.
The connecting rod 69 is provided with a groove 76, and the groove 76 can increase the gap between the horn hole and the connecting rod 69, so that the body fluid and the focal tissue can be conveniently attracted.
The lower tube 62 is provided with a catch 77, and the upper tube 61 is provided with a catch hole 78, wherein the catch 77 is inserted into the catch hole 78. The connection mode of the buckle 77 and the buckle hole 78 is adopted, so that the assembly and the production are convenient.
The joint surface between the upper pipe body 61 and the lower pipe body 62 is provided with a sealing ring 79, and the sealing ring 79 is used for enhancing the sealing between the upper pipe body 61 and the lower pipe body 62.
The working channel 50 is bonded in the stepped hole 31 through glue, and the tee joint 30 is in threaded connection with the luer connector 40.
In summary, the utility model provides a novel negative pressure channel of an endoscope, because the stepped holes with different sizes can be used for connecting the working channels with different sizes, so as to meet the requirement of providing various working channels for different specifications of surgical instruments, in the production process, only different tees and working channels need to be replaced, so that parts of the endoscope for other surgical instruments can be obtained, and other parts can be used universally, so that the research and development cost can be effectively reduced, and the development of enterprises is facilitated.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A novel negative pressure channel of an endoscope is characterized by comprising: the device comprises a negative pressure connector, a negative pressure valve, a first connecting pipe, a tee joint, a luer connector and a working channel; the negative pressure connector is communicated with the negative pressure valve, the negative pressure valve is communicated with the first connecting pipe, and the tee joint is respectively communicated with the first connecting pipe, the luer connector and the working channel; one end of the tee joint is a step hole, and one end of the working channel is inserted into the step hole.
2. The novel endoscopic negative pressure channel as claimed in claim 1, wherein said negative pressure valve comprises: the suction tube comprises an upper tube body, a lower tube body connected with the lower end of the upper tube body, a flexible button movably sleeved at the upper end of the upper tube body, a valve rod, a sealing ring and a suction tube connected with the upper tube body; the valve stem includes: the upper cover is respectively connected with the supporting block and the connecting rod, and the sealing ring is sleeved at the lower end of the connecting rod; the upper pipe body is provided with an upper cavity, the lower pipe body is provided with a lower cavity, the suction pipe is provided with a suction cavity, the flexible button is provided with a ventilation cavity and a sealing groove, a pressing opening is arranged in the sealing groove, the ventilation cavity is communicated with the pressing opening, the upper cavity is respectively communicated with the suction cavity and the ventilation cavity, the lower end of the upper cavity is a bell mouth, the valve rod penetrates through the pressing opening, the ventilation cavity and the upper cavity and extends into the lower cavity, the upper cover covers the sealing groove, the supporting block is arranged in the sealing groove and heightens the upper cover to form a gap between the upper cover and the sealing groove, and the outer diameter of the sealing ring is larger than the minimum diameter of the bell mouth; the upper cavity is communicated with the outside through the ventilation cavity and the gap; the outside of going up the body sets up the stopper.
3. The novel negative pressure channel of endoscope as claimed in claim 2, wherein the suction tube is connected to the negative pressure connector through a second connecting tube, and the lower tube body is connected to the first connecting tube.
4. The novel negative pressure channel of the endoscope, as claimed in claim 1, wherein the negative pressure connector is provided with a mounting plate.
5. The novel negative pressure channel of an endoscope, as set forth in claim 2, wherein the connecting rod is provided with a groove.
6. The novel negative pressure channel for the endoscope as claimed in claim 2, wherein the lower tube body is provided with a buckle, the upper tube body is provided with a hole, and the buckle is inserted into the hole.
7. The novel negative pressure channel for the endoscope is characterized in that a sealing ring is arranged on a joint surface between the upper tube body and the lower tube body.
8. The novel negative pressure channel of an endoscope, as set forth in claim 1, wherein the working channel is bonded in the stepped hole by glue, and the tee is connected with the luer connector by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122494995.XU CN216495207U (en) | 2021-10-15 | 2021-10-15 | Novel negative pressure channel of endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122494995.XU CN216495207U (en) | 2021-10-15 | 2021-10-15 | Novel negative pressure channel of endoscope |
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| Publication Number | Publication Date |
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| CN216495207U true CN216495207U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122494995.XU Active CN216495207U (en) | 2021-10-15 | 2021-10-15 | Novel negative pressure channel of endoscope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001300A1 (en) * | 2022-06-30 | 2024-01-04 | 湖南省华芯医疗器械有限公司 | Suction valve assembly, endoscope handle, and endoscope |
-
2021
- 2021-10-15 CN CN202122494995.XU patent/CN216495207U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001300A1 (en) * | 2022-06-30 | 2024-01-04 | 湖南省华芯医疗器械有限公司 | Suction valve assembly, endoscope handle, and endoscope |
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