Pressure measuring assembly, tip and endoscope

Abstract

The utility model relates to a pressure measuring assembly, a tip and an endoscope. The pressure measuring assembly is characterized in that a containing cavity is formed in a carrier, an opening communicated with the containing cavity is further formed in the end of the carrier, a first circulation hole and a second circulation hole are further formed in the side wall of the carrier, and the first circulation hole is communicated with the second circulation hole through the containing cavity; the baffle cover is arranged at the opening; and the pressure measuring sensor is arranged in the accommodating cavity. The isolation cover is installed at the opening, laser shock waves cannot penetrate through the opening and directly impact the pressure measuring sensor, the accuracy of the detection result of the pressure measuring sensor is effectively guaranteed, and meanwhile the situation that the service life is shortened due to the fact that the pressure measuring sensor is damaged is prevented. Meanwhile, the first circulation hole and the second circulation hole preset in the carrier can allow liquid in a focus body cavity to normally circulate and penetrate through the containing cavity, so that the pressure measuring sensor normally makes contact with the liquid to complete normal detection of the cavity pressure, and when it is detected that the cavity pressure abnormally rises, an intervention means is adopted in time, and a patient is prevented from being secondarily hurt.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular, to a pressure measuring assembly, a distal end head, and an endoscope. Background Art

[0002] An endoscope is a medical electronic optical instrument integrating high-precision technologies such as optics, mechanics, and electronics, which can be inserted into the body cavity and internal organs of the human body for direct observation, diagnosis, and treatment. The endoscope can be used to assist doctors in observing the tissue morphology of the internal organs of the human body, improving the accuracy of diagnosis and surgery. In some endoscope surgeries, due to the small space of the patient's lesion site and some special reasons, the outlet diameter is small, resulting in insufficient water output, which causes a large cavity pressure in the patient's body and brings secondary harm to the patient. To avoid this situation, some endoscopes are equipped with a pressure measuring device at the distal end head to measure the cavity pressure of the lesion site in real time. When it is measured that the cavity pressure abnormally increases, measures such as controlling the water intake are taken to reduce the cavity pressure, thereby reducing the discomfort of the patient.

[0003] However, in the traditional technology, the pressure measuring sensor used to measure the internal cavity pressure of the body cavity is generally directly installed at the head end position of the distal end head. When performing a laser lithotripsy operation, the strong shock wave generated will cause a great impact on the pressure measuring sensor. In the light case, the accuracy of the measurement result of the pressure measuring sensor is reduced, and in the serious case, the pressure measuring sensor and its optical fiber will be directly damaged, losing the pressure measuring function and affecting the service life of the pressure measuring sensor. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a pressure measuring assembly, a distal end head, and an endoscope for the problem that the shock wave affects the measurement accuracy of the pressure measuring sensor and even causes damage to the pressure measuring sensor.

[0005] In the first aspect of the present application, a pressure measuring assembly for an endoscope is provided, which includes:

[0006] A carrier, an accommodation cavity is formed inside the carrier, an open end is further provided at the end of the carrier, which is communicated with the accommodation cavity, and a first flow hole and a second flow hole are further provided on the side wall of the carrier, and the first flow hole is communicated with the second flow hole through the accommodation cavity;

[0007] A partition cover, which is installed at the open end; and

[0008] A pressure measuring sensor, which is installed in the accommodation cavity.

[0009] When the pressure measuring component of this solution is in use, it is used to be integrally installed on the tip shell of the tip head and extend into the patient's lesion together with the tip head, so as to be able to detect the cavity pressure of the lesion site in real time, and the cavity pressure detection operation can be carried out synchronously with the laser lithotripsy treatment. Specifically, the laser device penetrates through the tip shell to reach the lesion site and starts the laser lithotripsy treatment. Since the pressure measuring sensor is installed in the accommodation cavity of the carrier and a partition cover is installed at the opening facing the laser lithotripsy treatment area, the laser shock wave will not be able to pass through the opening and have a direct impact on the pressure measuring sensor, so as to effectively ensure the accuracy of the detection result of the pressure measuring sensor and prevent the pressure measuring sensor from being damaged and reducing its service life. At the same time, the first flow hole and the second flow hole preset on the carrier can allow the liquid in the lesion body cavity to flow through the accommodation cavity normally, so that the pressure measuring sensor can normally contact the liquid to complete the normal cavity pressure detection, so that when the cavity pressure is detected to rise abnormally, intervention means can be adopted in time to avoid secondary injury to the patient, reduce the discomfort of the patient, and improve the experience of endoscopic surgery treatment.

[0010] The technical solution of the present application will be further described below:

[0011] In one embodiment, the pressure measuring sensor has a measuring part, the measuring part is arranged facing the partition cover, and the measuring part is arranged farther away from the partition cover than the first flow hole and the second flow hole.

[0012] In one embodiment, the carrier is a circular pipe fitting, and there is no overlap between the pressure measuring sensor and the first flow hole in the radial direction of the circular pipe fitting, and there is no overlap between the pressure measuring sensor and the second flow hole in the radial direction of the circular pipe fitting.

[0013] In one embodiment, the partition cover includes a clamping body, and the clamping body is clamped at the opening.

[0014] In one embodiment, the partition cover further includes a cover body connected to the clamping body, and an arc-shaped convex surface is formed on the end of the cover body exposed outside the carrier.

[0015] In one embodiment, the outer wall of the pressure measuring sensor is clamped and fixed with the inner side wall of the accommodation cavity;

[0016] Alternatively, the pressure measuring component further includes an adhesive, the adhesive is arranged on the outer wall of the pressure measuring sensor, and the pressure measuring sensor is adhesively fixed to the inner side wall of the accommodation cavity through the adhesive;

[0017] Alternatively, a positioning convex edge protrudes from the inner side wall of the accommodation cavity, and the pressure measuring sensor abuts against the positioning convex edge for positioning.

[0018] In a second aspect of the present application, a distal end head for an endoscope is further provided, which includes:

[0019] A distal end housing, the distal end housing is provided with a mounting hole; and

[0020] The pressure measuring assembly as described above, the pressure measuring assembly is inserted through the mounting hole, and the partition cover, the first flow hole and the second flow hole are all exposed outside the distal end housing.

[0021] In one embodiment, a step is recessed on the end face of the distal end housing, the mounting hole is formed on the bottom wall of the step, and the side wall of the step surrounds the outside of the part of the pressure measuring assembly extending out of the mounting hole and is in avoidance cooperation with the first flow hole and the second flow hole.

[0022] In one embodiment, the distal end housing is further provided with an instrument channel, a first receiving hole and a second receiving hole. The instrument channel is used for a laser device to pass through, a camera module is arranged in the first receiving hole, and an illumination component is arranged in the second receiving hole.

[0023] In a third aspect of the present application, an endoscope is further provided, which includes a handle, an insertion tube, a snake bone and the distal end head as described above, and the handle, the insertion tube, the snake bone and the distal end head are connected in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0026] Figure 1 It is a perspective structure schematic diagram of the pressure measuring assembly according to an embodiment of the present application.

[0027] Figure 2 It is a structure schematic diagram of the pressure measuring assembly.

[0028] Figure 3 It is an axial sectional structure schematic diagram of the pressure measuring assembly.

[0029] Figure 4 It is an assembly structure diagram of the distal end head in one embodiment.

[0030] Figure 5 ForFigure 4 Schematic structural diagram from another perspective.

[0031] Description of reference numerals:

[0032] 100, tip; 10, pressure measurement assembly; 11, carrier; 111, accommodation cavity; 112, open end; 113, first flow hole; 114, second flow hole; 12, partition cover; 121, cover body; 122, clamping body; 13, pressure measurement sensor; 131, measurement part; 20, tip housing; 21, mounting hole; 22, step position; 221, bottom wall; 222, side wall; 23, instrument channel; 24, first receiving hole; 25, second receiving hole; 30, camera module; 40, lighting assembly. Detailed implementation manners

[0033] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0035] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if there is a term "multiple", the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0036] In this application, unless otherwise clearly specified and defined, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In this application, unless otherwise clearly specified and defined, if there is a description such as the first feature being "on" or "under" the second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0039] Refer to Figures 1 to 3 , a pressure measuring assembly 10 shown in an embodiment of this application, which is used in an endoscope and includes a carrier 11, a partition cover 12 and a pressure measuring sensor 13. Among them, the carrier 11 is the bearing main body of the pressure measuring assembly 10 and is used to load and fix the partition cover 12 and the pressure measuring sensor 13.

[0040] An accommodation cavity 111 is formed inside the carrier 11. An open end 112 communicating with the accommodation cavity 111 is further opened at the end of the carrier 11. A first flow hole 113 and a second flow hole 114 are also opened on the side wall 222 of the carrier 11. The first flow hole 113 communicates with the second flow hole 114 through the accommodation cavity 111; the partition cover 12 is installed at the open end 112; the pressure measuring sensor 13 is installed in the accommodation cavity 111.

[0041] It should be noted that the partition cover 12 and the carrier 11 can be integrally formed or detachably assembled. For example, in this application, the partition cover 12 and the carrier 11 are detachably assembled, so that the pressure measurement sensor 13 can be conveniently inserted into or taken out of the accommodation cavity 111 through the open end 112.

[0042] The partition cover 12 is installed at the open end 112. It can be that the partition cover 12 completely seals the open end 112, in which case the shock wave generated by laser lithotripsy can be more effectively blocked from propagating into the accommodation cavity 111 and affecting the pressure measurement sensor 13. Or, there can be a fitting gap of a certain size and shape between the partition cover 12 and the open end 112. On the basis of effectively blocking the shock wave, it can allow liquid to flow into the accommodation cavity 111 through the fitting gap and contact the pressure measurement sensor 13, so that the pressure measurement sensor 13 can perform the cavity pressure measurement operation. Just flexibly select according to actual needs.

[0043] The hole shape, size, number of settings, etc. of the first flow hole 113 and the second flow hole 114 can all be designed according to actual needs, so no special limitation is made here. However, it should be noted that when only one of the first flow hole 113 and the second flow hole 114 is provided, the first flow hole 113 and the second flow hole 114 can be arranged oppositely; that is to say, the hole centers of the first flow hole 113 and the second flow hole 114 are on the same straight line. In this way, it is more conducive to the liquid in the body cavity to flow more effectively between the first flow hole 113 and the second flow hole 114. Of course, the center line of the first flow hole 113 can also be arranged at an angle to the center line of the second flow hole 114, such as 30°, 45°, 60°, etc., and just select according to actual needs.

[0044] It is necessary to note that the liquid mentioned in this application is mainly perfused physiological saline, etc., and may also include body fluids, etc. For example, in ureteroscopic surgery, perfusing physiological saline into the body cavity for flushing can keep the field of view clear, speed up the surgical process, avoid operating injuries to surrounding tissues, and at the same time can expand the cavity and maintain the space required for the operation.

[0045] Please combine Figure 4 and Figure 5, In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: When the pressure measurement component 10 of this solution is in use, it is integrally installed on the tip shell 20 of the tip head 100 and extends into the patient's lesion together with the tip head 100, so as to be able to perform real-time detection of the cavity pressure at the lesion site, and the cavity pressure detection operation can be carried out synchronously with the laser lithotripsy treatment; specifically, the laser device penetrates through the tip shell 20 to reach the lesion site and starts laser lithotripsy treatment. Since the pressure measurement sensor 13 is installed in the accommodation cavity 111 of the carrier 11 and a partition cover 12 is installed at the opening 112 facing the laser lithotripsy treatment area, the laser shock wave will not be able to pass through the opening 112 to directly impact the pressure measurement sensor 13, thereby effectively ensuring the accuracy of the detection result of the pressure measurement sensor 13 and preventing the pressure measurement sensor 13 from being damaged and reducing its service life. At the same time, the preset first flow hole 113 and second flow hole 114 on the carrier 11 can allow the liquid in the lesion body cavity to flow through the accommodation cavity 111 normally, enabling the pressure measurement sensor 13 to come into normal contact with the liquid to complete the normal cavity pressure detection, so that when the cavity pressure is detected to rise abnormally, intervention means can be taken in time to avoid secondary injury to the patient, reduce the discomfort of the patient, and improve the experience of endoscopic surgery treatment.

[0046] Please continue to refer to Figures 1 to 3 , On the basis of the above embodiment, the pressure measurement sensor 13 has a measurement part 131, the measurement part 131 is arranged facing the partition cover 12, and the measurement part 131 is arranged farther away from the partition cover 12 than the first flow hole 113 and the second flow hole 114.

[0047] With the above installation structure, the measurement part 131 of the pressure measurement sensor 13 can be directly opposite and communicated with the first flow hole 113 and the second flow hole 114. When the liquid flows through the first flow hole 113, the accommodation cavity 111 and the second flow hole 114, it can directly contact the measurement part 131, and the measurement part 131 can measure the current water pressure, that is, obtain the cavity pressure. Specifically, the working principle of the pressure measurement sensor 13 can be that the water pressure of the measured liquid directly acts on the diaphragm of the measurement part 131, causing the diaphragm to generate a micro-displacement proportional to the water pressure. At this time, the resistance value of the detection circuit changes, and then this change is detected by an electronic circuit and converted into a standard measurement signal corresponding to a relative pressure. In this way, the accuracy of the cavity pressure measurement result can be ensured. At the same time, the partition cover 12 is covered at the opening 112, which can effectively block the shock wave generated during the laser lithotripsy treatment to avoid the shock wave from affecting and damaging the measurement part 131 of the pressure measurement sensor 13.

[0048] It should be noted that the shock waves generated during laser lithotripsy treatment are transmitted through a liquid medium. Therefore, the partition cover 12 opposite to the lesion site where the laser lithotripsy treatment occurs can block most of the shock waves. However, some shock waves will still enter the first flow hole 113 and the second flow hole 114 through the liquid and act on the pressure sensor 13, affecting the pressure sensor 13. In view of this, in another embodiment, the carrier 11 is a circular pipe fitting, and there is no overlap between the pressure sensor 13 and the first flow hole 113 in the radial direction of the circular pipe fitting, and there is no overlap between the pressure sensor 13 and the second flow hole 114 in the radial direction of the circular pipe fitting.

[0049] After such a setting, only the measuring part 131 of the pressure sensor 13 is reserved for contacting the liquid, while the main body part avoids contacting the liquid by tightly abutting against the side wall 222 of the carrier 11. Thus, the contact area between the shock wave propagating along the liquid and the pressure sensor 13 can be reduced, the shock wave energy acting on the pressure sensor 13 can be reduced, the degree of interference of the pressure sensor 13 by the shock wave can be alleviated, and the measurement accuracy and service life of the pressure sensor 13 can be improved.

[0050] For example, the circular pipe fitting can be, but is not limited to, a PI (Polyimide) pipe, etc.

[0051] According to actual needs, there are various ways to install the pressure sensor 13 in the accommodation cavity 111 of the carrier 11. For example, in an optional embodiment, the outer wall of the pressure sensor 13 is snap-fitted and fixed to the inner side wall 222 of the accommodation cavity 111. Therefore, the pressure sensor 13 can be installed and fixed in the carrier 11 by means of the clamping force between its outer wall and the inner side wall 222 of the accommodation cavity 111, and the installation method is simple.

[0052] Alternatively, in another optional embodiment, the pressure measuring assembly 10 further includes an adhesive member. The adhesive member is disposed on the outer wall of the pressure sensor 13, and the pressure sensor 13 is adhesively fixed to the inner side wall 222 of the accommodation cavity 111 through the adhesive member. Therefore, the pressure sensor 13 can be adhesively fixed inside the carrier 11 by means of the adhesive force provided by the adhesive member, and the installation method is simple and easy to implement. The adhesive member can be, but is not limited to, double-sided tape, glue, etc.

[0053] Alternatively, in yet another alternative embodiment, a positioning convex edge is protruded from the inner side wall 222 of the accommodation cavity 111, and the pressure measurement sensor 13 abuts against the positioning convex edge for positioning. During installation, the pressure measurement sensor 13 is directly pushed into the accommodation cavity 111 from the open end 112, and the pressure measurement sensor 13 moves along the axial direction of the carrier 11 towards the deep part of the accommodation cavity 111 until the bottom of the pressure measurement sensor 13 abuts against the positioning convex edge. The positioning convex edge forms support and positioning for the pressure measurement sensor 13, thereby realizing the installation of the pressure measurement sensor 13 inside the carrier 11. The installation method is simple, facilitating the disassembly, maintenance, or replacement of the pressure measurement sensor 13, and has strong feasibility.

[0054] Of course, in other embodiments, the pressure measurement sensor 13 can also be assembled and fixed with the carrier 11 by other installation methods, and can be flexibly selected according to actual needs, which will not be elaborated here.

[0055] Please continue to refer to Figures 4 to 5 In addition, the present application further provides a distal end head 100 for use in an endoscope. The distal end head 100 includes a distal end housing 20 and a pressure measurement assembly 10 as described in any of the above embodiments. The distal end housing 20 is provided with an installation hole 21, and the pressure measurement assembly 10 is inserted through the installation hole 21, and the partition cover 12, the first flow hole 113, and the second flow hole 114 are all exposed outside the distal end housing 20.

[0056] By inserting the pressure measurement assembly 10 into the installation hole 21, the pressure measurement assembly 10 can be assembled with the distal end housing 20 as a whole. When the distal end head 100 extends into the patient's body cavity, the pressure measurement assembly 10 can also reach synchronously. Furthermore, it is convenient to make the liquid in the body cavity contact the pressure measurement sensor 13 through the exposed first flow hole 113 and second flow hole 114 for cavity pressure measurement operations. At the same time, the partition cover 12 can frontally block shock waves, avoiding the influence and damage of shock waves on the pressure measurement sensor 13.

[0057] It is easy to understand that by means of the tight fit between the outer peripheral wall of the carrier 11 and the hole wall of the installation hole 21, the entire pressure measurement assembly 10 can be inserted and fixed in the installation hole 21. Alternatively, the pressure measurement assembly 10 can also be installed and fixed in the installation hole 21 by means of bonding, magnetic attraction connection, etc., which can be selected according to actual needs.

[0058] In one embodiment, the partition cover 12 includes a clamping body 122, and the clamping body 122 is clamped at the open end 112. Further, the partition cover 12 further includes a cover body 121 connected to the clamping body 122, and an arc convex surface is formed on the end of the cover body 121 exposed outside the carrier 11.

[0059] For example, the cartridge body 122 is a cylinder, which can be of solid or hollow construction. The cylinder is inserted into the lumen of the carrier 11 (i.e., into the open end 112), and the partition cover 12 can be inserted and fixed to the carrier 11. The arc-shaped convex surface designed on the cover body 121 can play a guiding role when the pressure measuring assembly 10 passes through the mounting hole 21, reducing the difficulty of perforation installation.

[0060] Further, on the basis of any of the above embodiments, a step position 22 is recessed on the end face of the tip shell 20, the mounting hole 21 is formed on the bottom wall 221 of the step position 22, and the side wall 222 of the step position 22 surrounds the outside of the part of the pressure measuring assembly 10 extending out of the mounting hole 21, and is in avoidance cooperation with the first flow hole 113 and the second flow hole 114. That is, the mounting hole 21 is arranged on the bottom wall 221 of the step position 22. After the pressure measuring assembly 10 passes through the mounting hole 21, the partition cover 12 can be arranged towards the head end of the tip shell 20, that is, it can just face the part of the lesion receiving laser lithotripsy, so as to block most of the shock waves head-on.

[0061] The side wall 222 of the step position 22 wraps the exposed first flow hole 113 and the second flow hole 114, playing a certain protective role, and can reduce the influence of shock waves on the working performance of the pressure measuring sensor 13. The side wall 222 of the step position 22 is in avoidance cooperation with the first flow hole 113 and the second flow hole 114, so as not to block the smooth flow of liquid into and out of the first flow hole 113, the accommodation cavity 111 and the second flow hole 114, ensuring the normal operation of the pressure measuring sensor 13 for cavity pressure measurement.

[0062] In another embodiment, the tip shell 20 is further provided with an instrument channel 23, a first receiving hole 24 and a second receiving hole 25. The instrument channel 23 is used for the laser device to pass through, the first receiving hole 24 is provided with a camera module 30, and the second receiving hole 25 is provided with an illumination component 40. During endoscopic surgery, the laser device is used for laser lithotripsy, and the illumination component 40 is used to provide illumination for the camera module 30, so that the camera module 30 can obtain brighter and clearer image signals.

[0063] It can be understood that the pressure measuring sensor 13 is also connected with an optical fiber or a cable, the pressure measuring sensor 13 is electrically connected to the control host through the optical fiber or the cable, and the camera module 30 is also electrically connected to the control host in a wired or wireless manner, so that the doctor can obtain relevant data from the control host in a timely manner.

[0064] In addition to the above, the present application also provides an endoscope, which includes a handle, an insertion tube, a snake bone and the above-mentioned tip head 100, and the handle, the insertion tube, the snake bone and the tip head 100 are connected in sequence.

[0065] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0066] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A pressure measuring component for use in an endoscope, characterized in that, Comprising: A carrier, an accommodation cavity is formed inside the carrier, an open end is further provided at the end of the carrier and is communicated with the accommodation cavity, a first flow hole and a second flow hole are further provided on the side wall of the carrier, and the first flow hole is communicated with the second flow hole through the accommodation cavity; A partition cover, which is installed at the open end; and A pressure measurement sensor, which is installed inside the accommodation cavity.

2. The pressure measuring assembly according to claim 1, characterized in that The pressure measurement sensor has a measurement part, the measurement part is arranged towards the partition cover, and the measurement part is farther away from the partition cover than the first flow hole and the second flow hole.

3. The pressure measuring assembly according to claim 1, characterized in that, The carrier adopts a circular pipe fitting, and there is no overlap between the pressure measurement sensor and the first flow hole in the radial direction of the circular pipe fitting, and there is no overlap between the pressure measurement sensor and the second flow hole in the radial direction of the circular pipe fitting.

4. The pressure measuring assembly according to claim 1, wherein, The partition cover includes a clamping body, and the clamping body is clamped at the open end.

5. The pressure measuring assembly according to claim 4, characterized in that, The partition cover further includes a cover body connected to the clamping body, and an arc-shaped convex surface is formed on the cover body exposed at the end of the carrier.

6. The pressure measuring assembly according to claim 1, characterized in that, The outer wall of the pressure measurement sensor is clamped and fixed with the inner side wall of the accommodation cavity; Alternatively, the pressure measurement assembly further includes an adhesive member, the adhesive member is arranged on the outer wall of the pressure measurement sensor, and the pressure measurement sensor is adhesively fixed to the inner side wall of the accommodation cavity through the adhesive member; Alternatively, a positioning convex edge protrudes from the inner side wall of the accommodation cavity, and the pressure measurement sensor abuts against and is positioned with the positioning convex edge.

7. An end tip for use in an endoscope, characterized in that, Comprising: A front end shell, the front end shell is provided with a mounting hole; And The pressure measurement assembly according to any one of claims 1 to 6, the pressure measurement assembly passes through the mounting hole, and the partition cover, the first flow hole and the second flow hole are all exposed outside the front end shell.

8. The tip according to claim 7, characterized in that, A step position is recessed on the end face of the front end shell, the mounting hole is formed on the bottom wall of the step position, and the side wall of the step position surrounds the part of the pressure measurement assembly extending out of the mounting hole and is in avoidance cooperation with the first flow hole and the second flow hole.

9. The tip according to claim 7, wherein The front end shell is further provided with an instrument channel, a first receiving hole and a second receiving hole, the instrument channel is used for a laser device to pass through, a camera module is arranged in the first receiving hole, and an illumination component is arranged in the second receiving hole.

10. An endoscope, characterized in that, Comprising a handle, an insertion tube, a snake bone and the front end head according to any one of claims 7 to 9, the handle, the insertion tube, the snake bone and the front end head are connected in sequence.

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