Laparoscope with water injection structure

Abstract

The invention is applied to the technical field of medical instruments, and particularly discloses a laparoscope with a water injection structure, the laparoscope comprises a shell, the shell is of an internal hollow structure, a mirror rod is arranged on the surface of one side of the shell in a penetrating manner, and the other end of the mirror rod is of a 30-degree inclined structure. According to the laparoscope with the water injection structure, the camera is installed on one side of the laparoscope rod, the interior of the laparoscope rod is hollow, the water injection pipe is arranged, and water is injected into the gall bladder through the water injection pipe flush with the camera, so that a layer of water film is formed in front of the camera, and it is avoided that bile is directly attached to the camera to affect the visibility of the camera; the other end of the water injection pipe is connected with the water injection connecting pipe and the water drainage connecting pipe, one-way structures are arranged in the water injection connecting pipe and the water drainage connecting pipe respectively to control water flow to flow in one way, and the water injection amount and the water drainage amount in the water injection pipe can be manually adjusted according to the requirement of the operation; therefore, the definition of the camera is maintained.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a laparoscope with a water injection structure. Background Art

[0002] Laparoscope refers to a medical device. The laparoscope lens is inserted into the abdominal cavity. The images taken by the laparoscope lens are transmitted to the signal processing system through optical fibers and displayed on the monitor in real time. The doctor can analyze and judge the patient's condition through the images of the patient's organs from different angles displayed on the monitor screen, and use special laparoscopic instruments to perform surgery. Laparoscopes are used in many surgical fields, including the process of gallbladder stone removal and gallbladder preservation through laparoscopy, and the stones can be removed without opening the gallbladder.

[0003] The current laparoscope is a camera structure connected to a scope rod. After the scope rod and camera are inserted into the gallbladder, the stone removal operation can be performed. However, there is bile in the gallbladder and the field of view of the camera at the front end of the laparoscope is poor, which makes the surgical operation inconvenient and increases the operation time. Summary of the invention

[0004] The object of the present invention is to provide a laparoscope with a water injection structure to solve the problem mentioned in the above background technology that there is a large amount of bile in the gallbladder, resulting in poor camera field of view after the laparoscope is inserted into the gallbladder.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laparoscope with a water injection structure, comprising a shell, the shell being an internal hollow structure, a mirror rod being provided through one side surface of the shell, the other end of the mirror rod being a 30-degree inclined structure, the mirror rod being a hollow structure with one side open, and the open end of the mirror rod being provided through the side surface of the shell, the mirror rod being rotatably connected to the side surface of the shell, a camera being provided through the inclined end surface of the mirror rod, a plurality of illuminators being provided in an annular manner on the outer surface of the camera, the illuminators being embedded and fixed on the side surface of the mirror rod, an image interface being provided on the other side surface of the shell, a light source interface being provided on the upper surface of the shell, the image interface being connected to the camera through an optical fiber, the light source interface being connected to the illuminator through another optical fiber, the two optical fibers being located inside the hollow mirror rod and the shell, a water injection structure being provided inside the mirror rod, the water injection structure injects water into the camera through a water injection pipe to ensure the clarity of the camera;

[0006] Preferably, the water injection structure includes a water injection pipe, which is located inside the mirror rod. A surface sliding sleeve of the water injection pipe is provided with an annular connecting block. The connecting block on the surface of the water injection pipe is fixedly connected to the inner wall of the mirror rod. One end of the water injection pipe passes through the side surface of the mirror rod and is aligned with the camera, and the other end of the water injection pipe is inserted into the interior of the outer shell.

[0007] With the above technical solution, the clarity of the camera can be improved by using the water injection structure.

[0008] Preferably, a supporting structure is arranged inside the housing. The supporting structure realizes the support of the water injection pipe and the optical fiber through the connecting round rod and the slider, ensuring that the water injection pipe and the optical fiber will not be knotted during the rotation of the mirror rod.

[0009] With the above technical solution, the water injection pipe and the optical fiber can be supported by using the supporting structure.

[0010] Preferably, the supporting structure includes a connecting round rod. The connecting round rod is a hollow cylindrical structure with one side open. The open side of the connecting round rod is aligned with the mirror rod. The connecting round rod is fixedly connected to the inner wall of the housing. An arc-shaped chute is penetrated on the surface of the connecting round rod. There are 2 arc-shaped chutes symmetrically arranged on the surface of the connecting round rod. Sliders are respectively slidably connected to the inner walls of the 2 arc-shaped chutes. A cylindrical through hole is penetrated on the surface of the slider. One of the sliders wraps the outer surface of the water injection pipe, and the other slider includes the 2 optical fibers.

[0011] With the above technical solution, the water injection pipe and the optical fiber can be supported by using the connecting round rod and the slider.

[0012] Preferably, a connecting structure is penetrated on the surface of the housing. The connecting structure realizes the water injection and drainage processes of the water injection pipe through the water injection connecting pipe and the drainage connecting pipe.

[0013] With the above technical solution, the water injection and drainage processes of the water injection pipe can be realized by using the connecting structure.

[0014] Preferably, the connecting structure includes a water injection connecting pipe. The water injection connecting pipe is penetrated on the lower surface of the housing. A drainage connecting pipe is arranged on one side of the water injection connecting pipe. The drainage connecting pipe is penetrated on the lower surface of the housing. One ends of the water injection connecting pipe and the drainage connecting pipe are connected through and then connected to the water injection pipe. A water storage bladder is threadedly connected to the other end of the drainage connecting pipe. A connecting pipe is arranged on one side of the drainage connecting pipe. The connecting pipe is a T-shaped three-way structure. The connecting port of one of the connecting pipes penetrates the surface of the drainage connecting pipe. The connecting port of the second connecting pipe communicates with the air. The connecting port of the third connecting pipe is connected with an ear syringe. Two electromagnetic valves are arranged inside the connecting pipe. The two electromagnetic valves in the connecting pipe are respectively located in the air communication section and the through section of the drainage connecting pipe.

[0015] With the above technical solution, the water in the gallbladder can be discharged by squeezing the ear syringe.

[0016] Preferably, one-way structures with opposite directions are arranged inside the water injection connecting pipe and the drainage connecting pipe, and the one-way structures control the water flow direction in the water injection connecting pipe and the drainage connecting pipe by engaging and separating between the first clamp block and the second clamp block.

[0017] By adopting the above technical solution, the direction of water flow in the water injection connecting pipe and the drainage connecting pipe can be limited by utilizing the one-way structure.

[0018] Preferably, the one-way structure includes a No. 1 block, the main body of the No. 1 block is a circular ring structure, the outer surface of the No. 1 block is annularly provided with an arc-shaped through hole, the outer surface of the No. 1 block is fixedly connected to the inner wall of the water injection connecting pipe, a No. 2 block is arranged above the No. 1 block, the No. 2 block is slidably connected to the inner wall of the water injection connecting pipe, the surface of the No. 2 block is annularly provided with a circular water outlet, the water outlet on the surface of the No. 2 block is engaged with the cylindrical protrusion provided on the surface of the No. 1 block, a limiting block is arranged above the No. 2 block, the limiting block is a circular ring structure, the No. 1 block, the No. 2 block and the limiting block constitute a group of one-way structures, and another group of reverse one-way structures is arranged inside the drainage connecting pipe.

[0019] By adopting the above technical solution, the first clamp block and the second clamp block can limit the direction of water flow in the water injection connecting pipe and the drainage connecting pipe.

[0020] Preferably, an auxiliary snap-fit ​​structure is disposed on the surface of the housing, and the auxiliary snap-fit ​​structure is reinforced by a No. 2 connecting tube and a No. 2 magnetic block after the mirror rod is rotated.

[0021] By adopting the above technical solution, the mirror rod can be reinforced by using the auxiliary clamping structure.

[0022] Preferably, the auxiliary snap-fit ​​structure includes a No. 1 connecting tube, which is a hollow cylindrical structure with one side open, and the No. 1 connecting tube is fixedly mounted on the outer surface of the mirror rod, and one side of the No. 1 connecting tube is rotatably connected to the No. 1 magnetic block, and the No. 1 magnetic block is fixedly mounted on the outer surface of the outer shell, and the interior of the No. 1 magnetic block is hollow, and a No. 2 connecting tube is fixedly mounted on the inner wall of the No. 1 connecting tube, and the No. 2 connecting tube is a circular ring structure, and a No. 2 magnetic block slides through the surface of the No. 1 magnetic block, and a long strip protrusion is provided at one end of the No. 2 magnetic block, and the other end of the No. 2 magnetic block and the No. 2 connecting tube are adsorbed on each other.

[0023] By adopting the above technical solution, the mirror rod can be reinforced by using the No. 2 connecting tube and the No. 2 magnetic block.

[0024] Compared with the prior art, the present invention has the following beneficial effects: the laparoscope with the water injection structure:

[0025] 1. In the present invention, the camera is installed on one side of the mirror rod, and the mirror rod is hollow inside and is provided with a water injection pipe. The water injection pipe flush with the camera is used to inject water into the gallbladder, so as to form a water film in front of the camera, so as to prevent bile from directly adhering to the camera and affecting the visibility of the camera, thereby improving the clarity of the camera imaging, thereby improving the efficiency of the doctor's operation, and the other end of the water injection pipe is connected to the water injection connecting pipe and the drainage connecting pipe. The water injection connecting pipe and the drainage connecting pipe are respectively provided with a one-way structure to control the one-way flow of water. The water injection amount and the drainage amount in the water injection pipe can be manually adjusted according to the needs of the operation, so as to maintain the clarity of the camera;

[0026] 2. In the present invention, the mirror rod is rotatably connected to the side surface of the housing, and the rotating mirror rod can be rotated as needed during the operation to adjust the angle between the mirror rod and the camera. The water injection pipe and the optical fiber inside the mirror rod are wrapped in the through hole on the surface of the slider, and the slider is slidably connected to the arc-shaped slide groove connected to the surface of the round rod. The slider wraps and fixes the water injection pipe and the optical fiber. Therefore, when the mirror rod rotates, the water injection pipe and the optical fiber will stably slide in the arc-shaped slide groove connected to the surface of the round rod without entanglement and knotting.

[0027] Furthermore, when the mirror rod rotates to adjust the angle, it will drive the No. 1 connecting tube to rotate on the surface of the No. 1 magnetic block. The No. 2 connecting tube is set on the inner wall of the No. 1 connecting tube, which is mutually adsorbed with the No. 2 magnetic block set on the No. 1 magnetic block. The sliding No. 2 magnetic block can play a reinforcing role after the mirror rod is adjusted to a suitable angle, thereby preventing the mirror rod from rotating accidentally during the operation, thereby reducing surgical errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0029] Figure 2 It is a front structural schematic diagram of the present invention;

[0030] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0031] Figure 4 It is a schematic diagram of the front cross-section structure of the mirror rod of the present invention;

[0032] Figure 5 This is a schematic diagram of the side section structure of the No. 1 connecting tube of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the second magnetic block of the present invention;

[0034] Figure 7 It is a schematic diagram of the front cross-section structure of the housing of the present invention;

[0035] Figure 8 This is a schematic diagram of the connecting round rod structure of the present invention;

[0036] Fig. 9 It is a schematic diagram of the front cross-section structure of the water injection connecting pipe and the drainage connecting pipe of the present invention;

[0037] Fig.10 For the present invention Fig. 9 The enlarged structural diagram at B in the middle;

[0038] Fig.11 For the present invention Fig. 9 Schematic diagram of the cross-section structure at point B in the middle.

[0039] In the figure: 1. shell; 2. mirror rod; 3. camera; 4. lighting; 5. image interface; 6. light source interface; 7. optical fiber; 8. water injection pipe; 9. connecting round rod; 10. slider; 11. water injection connecting pipe; 12. drainage connecting pipe; 13. water storage bag; 14. connecting pipe; 15. ear cleaning ball; 16. No. 1 clamp block; 17. No. 2 clamp block; 18. limit block; 19. No. 1 connecting tube; 20. No. 2 connecting tube; 21. No. 1 magnetic block; 22. No. 2 magnetic block. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 11 The present invention provides a technical solution: a laparoscope with a water injection structure, comprising a shell 1, a mirror rod 2, a camera 3, a lighting lamp 4, an image interface 5, a light source interface 6, an optical fiber 7, a water injection pipe 8, a connecting round rod 9, a slider 10, a water injection connecting pipe 11, a drainage connecting pipe 12, a water storage bag 13, a connecting pipeline 14, an ear washing ball 15, a No. 1 clamping block 16, a No. 2 clamping block 17, a limiting block 18, a No. 1 connecting tube 19, a No. 2 connecting tube 20, a No. 1 magnetic block 21, and a No. 2 magnetic block 22.

[0042] The shell 1 is an internal hollow structure, a mirror rod 2 is provided through one side surface of the shell 1, the other end of the mirror rod 2 is a 30-degree inclined structure, the mirror rod 2 is a hollow structure with one side open, and the open end of the mirror rod 2 passes through the side surface of the shell 1, the mirror rod 2 and the side surface of the shell 1 are rotatably connected, a camera 3 is provided through the inclined end surface of the mirror rod 2, a plurality of lighting lamps 4 are provided in a ring shape on the outer surface of the camera 3, and the lighting lamps 4 are embedded and fixed on the side surface of the mirror rod 2, an image interface 5 is provided on the other side surface of the shell 1, a light source interface 6 is provided on the upper surface of the shell 1, the image interface 5 and the camera 3 are connected through an optical fiber 7, the light source interface 6 and the lighting lamp 4 are connected through another optical fiber 7, and the two optical fibers 7 are both located in the hollow mirror rod 2 and the inside of the shell 1;

[0043] like Figure 1 , Figure 2 and Figure 3 As shown, when using the device, the light source interface 6 is connected to an external light source signal, and the image interface 5 is connected to the monitor, and the gallbladder of the patient is punctured. After the puncture, the inclined end of the mirror rod 2 is inserted into the abdominal cavity of the patient, and the signal is transmitted to the lighting lamp 4 by the optical fiber 7, and the lighting lamp 4 is turned on to increase the light intensity in the gallbladder, and the camera 3 is started. The image of the gallbladder can be taken in real time by the camera 3, and transmitted to the monitor through the optical fiber 7, so that the doctor can observe the internal picture of the patient's gallbladder in real time and perform gallbladder surgery.

[0044] An injection structure is provided inside the mirror rod 2. The injection structure realizes water injection into the camera 3 through the water injection pipe 8 to ensure the clarity of the camera 3. The injection structure includes the water injection pipe 8. The water injection pipe 8 is located inside the mirror rod 2. An annular connection block is slidably sleeved on the surface of the water injection pipe 8. The connection block on the surface of the water injection pipe 8 is fixedly connected to the inner wall of the mirror rod 2. One end of the water injection pipe 8 penetrates through the side surface of the mirror rod 2 and aligns with the camera 3. The other end of the water injection pipe 8 is inserted into the interior of the housing 1. One-way structures with opposite directions are provided inside the water injection connection pipe 11 and the drainage connection pipe 12. The one-way structures control the water flow direction in the water injection connection pipe 11 and the drainage connection pipe 12 through the engagement and separation between the first clamping block 16 and the second clamping block 17. The one-way structure includes the first clamping block 16. The main body of the first clamping block 16 is a circular ring structure. Arc-shaped through holes are annularly arranged on the outer surface of the first clamping block 16. The outer surface of the first clamping block 16 is fixedly connected to the inner wall of the water injection connection pipe 11. The second clamping block 17 is arranged above the first clamping block 16. The second clamping block 17 is slidably connected to the inner wall of the water injection connection pipe 11. Circular water passing holes are annularly arranged on the surface of the second clamping block 17. The water passing holes on the surface of the second clamping block 17 are in clamping match with the cylindrical protrusions arranged on the surface of the first clamping block 16. A limiting block 18 is arranged above the second clamping block 17. The limiting block 18 is a circular ring structure. The first clamping block 16, the second clamping block 17, and the limiting block 18 constitute a set of one-way structures. Another set of reverse one-way structures is arranged inside the drainage connection pipe 12. A connection structure is penetrated through the surface of the housing 1. The connection structure realizes the water injection and drainage processes of the water injection pipe 8 through the water injection connection pipe 11 and the drainage connection pipe 12. The connection structure includes the water injection connection pipe 11. The water injection connection pipe 11 is penetrated through the lower surface of the housing 1. A drainage connection pipe 12 is arranged on one side of the water injection connection pipe 11. The drainage connection pipe 12 is penetrated through the lower surface of the housing 1. One ends of the water injection connection pipe 11 and the drainage connection pipe 12 are connected in a through manner and then connected to the water injection pipe 8. A water storage bladder 13 is threadedly connected to the other end of the drainage connection pipe 12. A connection pipe 14 is arranged on one side of the drainage connection pipe 12. The connection pipe 14 is a T-shaped three-way structure. The connection port of one of the connection pipes 14 penetrates through the surface of the drainage connection pipe 12. The connection port of the second connection pipe 14 communicates with the air. The connection port of the third connection pipe 14 is connected to an ear syringe 15. Two electromagnetic valves are arranged inside the connection pipe 14. The two electromagnetic valves inside the connection pipe 14 are respectively located in the air communication section and the through section of the drainage connection pipe 12;

[0045] Such as Figure 4 , Fig. 9 , Fig.10 and Fig.11As shown, when the camera 3 is shooting, the water injection connecting pipe 11 is connected to an external water injection pump, and the water flow is injected into the water injection connecting pipe 11 by the water injection pump, and flows along the water injection connecting pipe 11 to one of the one-way structures. The water flow pushes the second card block 17 upward to slide upward on the inner wall of the water injection connecting pipe 11. When the second card block 17 contacts the limit block 18, it stops sliding. At this time, the second card block 17 is separated from the first card block 16. At this time, the water flow can pass through the annular first card block 16 and the circular water outlet on the surface of the second card block 17. After passing the first card block 16 and the second card block 17, the water flow enters the water injection pipe 8 and continues to flow along the water injection pipe 8 to the outlet to clean the camera 3 and ensure the clarity of the camera 3. At the same time, the opening of the drainage connecting pipe 12 on the other side is closed, and the water flow cannot be discharged from the drainage connecting pipe 12. When the water needs to be discharged, the water storage is tightened by using a thread. The bag 13 is connected to the drainage connecting pipe 12, the solenoid valve between the connecting pipe 14 and the air through-section is opened, the ear cleaning ball 15 is held and squeezed, and the air in the ear cleaning ball 15 is blown outward under the action of external force and blown out to the outside through the connecting pipe 14. At this time, the solenoid valve between the connecting pipe 14 and the air through-section is closed, and the solenoid valve between the connecting pipe 14 and the through-section between the drainage connecting pipe 12 is opened, and the ear cleaning ball 15 is released. During the rebound of the ear cleaning ball 15, a negative pressure is formed in the drainage connecting pipe 12 through the connecting pipe 14. Since the water injection pipe 8 in the mirror rod 2 has a small diameter, the negative pressure formed by the ear cleaning ball 15 can draw water out from the water injection pipe 8. After the ear cleaning ball 15 rebounds, the solenoid valve inside the connecting pipe 14 is closed, and the water flows into the drainage connecting pipe 12 through the water injection pipe 8, and flows downward along the drainage connecting pipe 12 into the water storage bag 13 to suck out the water in the gallbladder.

[0046] A supporting structure is provided inside the shell 1. The supporting structure supports the water injection pipe 8 and the optical fiber 7 by connecting the round rod 9 and the slider 10 to ensure that the water injection pipe 8 and the optical fiber 7 will not be tangled during the rotation of the mirror rod 2. The supporting structure includes a connecting round rod 9. The connecting round rod 9 is a hollow cylindrical structure with one side open. The open side of the connecting round rod 9 is aligned with the mirror rod 2. The connecting round rod 9 is fixedly connected to the inner wall of the shell 1. The surface of the connecting round rod 9 is penetrated by an arc-shaped slide groove. There are two arc-shaped slide grooves symmetrically provided on the surface of the connecting round rod 9. The inner walls of the two arc-shaped slide grooves are respectively slidably connected with sliders 10. The surface of the slider 10 is penetrated by a cylindrical through hole. One of the sliders 10 is wrapped around the outer surface of the water injection pipe 8, and the other slider 10 includes the two optical fibers 7 therein. The shell 1 An auxiliary snap-fit ​​structure is arranged on the surface of the mirror rod 2, and the auxiliary snap-fit ​​structure is reinforced by the second connecting tube 20 and the second magnetic block 22 after the rotation operation of the mirror rod 2. The auxiliary snap-fit ​​structure includes a first connecting tube 19, and the first connecting tube 19 is a hollow cylindrical structure with one side open. The first connecting tube 19 is fixedly mounted on the outer surface of the mirror rod 2, and one side of the first connecting tube 19 is rotatably connected with the first magnetic block 21. The first magnetic block 21 is fixedly mounted on the outer surface of the shell 1, and the first magnetic block 21 is hollow inside. The inner wall of the first connecting tube 19 is fixedly mounted with the second connecting tube 20, and the second connecting tube 20 is a circular ring structure. The surface of the first magnetic block 21 is slidably penetrated by the second magnetic block 22, and a long strip protrusion is arranged on one end of the second magnetic block 22, and the other end of the second magnetic block 22 and the second connecting tube 20 are mutually adsorbed;

[0047] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in the process of using the mirror rod 2 and the camera 3 to observe the gallbladder, the angle of the mirror rod 2 can be adjusted according to the needs of the operation. In the process of adjusting the angle of the mirror rod 2, the second magnetic block 22 is slid outward to separate the second magnetic block 22 from the second connecting tube 20, and the first connecting tube 19 is held and rotated. The first connecting tube 19 rotates on the surface of the first magnetic block 21, and the first connecting tube 19 drives the mirror rod 2 to change its angle on the side surface of the housing 1. After the angle adjustment of the mirror rod 2 is completed, the second magnetic block 22 is pushed in the opposite direction. , the No. 2 magnetic block 22 is re-adsorbed between the No. 2 connecting tube 20, and the magnetic force between the No. 2 connecting tube 20 and the No. 2 magnetic block 22 is used to reinforce the mirror rod 2, thereby improving the stability of the mirror rod 2. When the mirror rod 2 rotates, the water injection pipe 8 and the optical fiber 7 inside the mirror rod 2 rotate synchronously, and the water injection pipe 8 and the optical fiber 7 will drive the slider 10 to slide synchronously in the arc-shaped slide groove on the surface of the connecting round rod 9. The slider 10 is used to wrap and fix the water injection pipe 8 and the optical fiber 7 to prevent the water injection pipe 8 and the optical fiber 7 from getting tangled during rotation.

[0048] Working principle: When the device is in use, the light source interface 6 is connected to the light source signal, the image interface 5 is connected to the monitor, the mirror rod 2 is inserted into the patient's abdominal cavity, the camera 3 is started, and the gallbladder image is taken by the camera 3 and transmitted to the monitor through the optical fiber 7. The doctor can observe the internal situation of the gallbladder in real time and carry out the operation. When the camera 3 is working, the water injection connecting pipe 11 is connected to the water injection pump, so that the water flows through the water injection connecting pipe 11 into the water injection pipe 8, and continues to flow out along the water injection pipe 8 to clean the camera 3. The clarity of the camera 3 is ensured by the water flow. When drainage is required, the stored water is pumped out. The bag 13 is connected to the drainage connecting pipe 12, and the ear cleaning ball 15 is squeezed. The negative pressure formed by squeezing the ear cleaning ball 15 is used to suck water into the water storage bag 13, and the water in the gallbladder is discharged. When the angle of the mirror rod 2 needs to be adjusted, the No. 2 magnetic block 22 is pulled outward to separate the No. 2 magnetic block 22 from the No. 2 connecting tube 20. At this time, the No. 1 connecting tube 19 can be rotated, and the No. 1 connecting tube 19 can be used to drive the mirror rod 2 to rotate and change the angle. After the rotation is completed, the No. 2 magnetic block 22 is slid in the opposite direction, and the adsorption force between the No. 2 magnetic block 22 and the No. 2 connecting tube 20 is used to reinforce the mirror rod 2, thereby improving the stability of the mirror rod 2 and increasing the stability of the operation.

[0049] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A laparoscope with a water injection structure, comprising a shell (1), the shell (1) being an internal hollow structure, a mirror rod (2) being provided through one side surface of the shell (1), the other end of the mirror rod (2) being a 30-degree inclined structure, the mirror rod (2) being a hollow structure with one side open, and the open end of the mirror rod (2) being provided through the side surface of the shell (1), the mirror rod (2) being rotatably connected to the side surface of the shell (1), a camera (3) being provided through the inclined end surface of the mirror rod (2), the appearance of the camera (3) being A plurality of lighting lamps (4) are arranged in a ring shape, and the lighting lamps (4) are embedded and fixed on the side surface of the mirror rod (2); an image interface (5) is arranged on the other side surface of the shell (1); a light source interface (6) is arranged on the upper surface of the shell (1); the image interface (5) is connected to the camera (3) via an optical fiber (7); the light source interface (6) is connected to the lighting lamps (4) via another optical fiber (7); the two optical fibers (7) are both located inside the hollow mirror rod (2) and the shell (1); and the invention is characterized in that: An injection structure is arranged inside the mirror rod (2). The injection structure realizes water injection into the camera (3) through a water injection pipe (8) to ensure the clarity of the camera (3).

2. The laparoscope with a water injection structure according to claim 1, characterized in that: The injection structure includes a water injection pipe (8). The water injection pipe (8) is located inside the mirror rod (2). An annular connecting block is slidably sleeved on the surface of the water injection pipe (8). The connecting block on the surface of the water injection pipe (8) is fixedly connected to the inner wall of the mirror rod (2). One end of the water injection pipe (8) penetrates through the side surface of the mirror rod (2) and is aligned with the camera (3). The other end of the water injection pipe (8) is inserted into the interior of the housing (1).

3. The laparoscope with a water injection structure according to claim 2, characterized in that: A supporting structure is arranged inside the housing (1). The supporting structure realizes the support of the water injection pipe (8) and the optical fiber (7) through a connecting round rod (9) and a slider (10) to ensure that the water injection pipe (8) and the optical fiber (7) will not be knotted during the rotation of the mirror rod (2).

4. The laparoscope with a water injection structure according to claim 3, characterized in that: The supporting structure includes a connecting round rod (9). The connecting round rod (9) is a hollow cylindrical structure with an open side on one side. The open side of the connecting round rod (9) is arranged in alignment with the mirror rod (2). The connecting round rod (9) is fixedly connected to the inner wall of the housing (1). An arc-shaped sliding groove is penetrated through the surface of the connecting round rod (9). Two arc-shaped sliding grooves on the surface of the connecting round rod (9) are symmetrically arranged. Sliders (10) are respectively slidably connected to the inner walls of the two arc-shaped sliding grooves. A cylindrical through hole is penetrated through the surface of the slider (10). One of the sliders (10) wraps around the outer surface of the water injection pipe (8), and the other slider (10) encloses the two optical fibers (7).

5. The laparoscope with a water injection structure according to claim 1, characterized in that: A connecting structure is penetrated through the surface of the housing (1). The connecting structure realizes the water injection and drainage processes of the water injection pipe (8) through a water injection connecting pipe (11) and a drainage connecting pipe (12).

6. The laparoscope with a water injection structure according to claim 5, characterized in that: The connecting structure includes a water injection connecting pipe (11). The water injection connecting pipe (11) is penetrated through the lower surface of the housing (1). A drainage connecting pipe (12) is arranged on one side of the water injection connecting pipe (11). The drainage connecting pipe (12) is penetrated through the lower surface of the housing (1). One ends of the water injection connecting pipe (11) and the drainage connecting pipe (12) are connected in a through manner and then connected to the water injection pipe (8). A water storage bag (13) is threadedly connected to the other end of the drainage connecting pipe (12). A connecting pipe (14) is arranged on one side of the drainage connecting pipe (12). The connecting pipe (14) is a T-shaped three-way structure. The connecting port of one of the connecting pipes (14) penetrates through the surface of the drainage connecting pipe (12). The connecting port of the second connecting pipe (14) communicates with the air. The connecting port of the third connecting pipe (14) is connected to an ear syringe (15). Two electromagnetic valves are arranged inside the connecting pipe (14). The two electromagnetic valves inside the connecting pipe (14) are respectively located in the air communication section and the through section of the drainage connecting pipe (12).

7. The laparoscope with a water injection structure according to claim 5, characterized in that: The water injection connecting pipe (11) and the drainage connecting pipe (12) are provided with one-way structures with opposite directions inside. The one-way structures control the direction of water flow inside the water injection connecting pipe (11) and the drainage connecting pipe (12) by engaging and disengaging a first clamping block (16) and a second clamping block (17).

8. The laparoscope with a water injection structure according to claim 7, characterized in that: The one-way structure comprises a first clamping block (16), the main body of the first clamping block (16) is a circular ring structure, the outer surface of the first clamping block (16) is provided with an arc-shaped through hole in an annular shape, the outer surface of the first clamping block (16) is fixedly connected to the inner wall of the water injection connecting pipe (11), a second clamping block (17) is provided above the first clamping block (16), the second clamping block (17) is slidably connected to the inner wall of the water injection connecting pipe (11), and the second clamping block (17) is provided with a plurality of holes. A circular water outlet is arranged in a ring shape on the surface, the water outlet on the surface of the No. 2 clamping block (17) is engaged with a cylindrical protrusion arranged on the surface of the No. 1 clamping block (16), a limit block (18) is arranged above the No. 2 clamping block (17), and the limit block (18) is a circular ring structure, the No. 1 clamping block (16), the No. 2 clamping block (17) and the limit block (18) constitute a group of one-way structures, and another group of reverse one-way structures is arranged inside the drainage connecting pipe (12).

9. The laparoscope with a water injection structure according to claim 1, characterized in that: An auxiliary snap-fit ​​structure is arranged on the surface of the housing (1), and the auxiliary snap-fit ​​structure is reinforced by a second connecting tube (20) and a second magnetic block (22) after the mirror rod (2) is rotated.

10. The laparoscope with a water injection structure according to claim 9, characterized in that: The auxiliary engaging structure comprises a first connecting tube (19), the first connecting tube (19) being a hollow cylindrical structure with one side open, the first connecting tube (19) being fixedly mounted on the outer surface of the mirror rod (2), one side of the first connecting tube (19) being rotatably connected to a first magnetic block (21), the first magnetic block (21) being fixedly mounted on the outer surface of the housing (1), and the interior of the first magnetic block (21) being hollow, a second connecting tube (20) being fixedly mounted on the inner wall of the first connecting tube (19), the second connecting tube (20) being a circular ring structure, a second magnetic block (22) slidingly penetrating the surface of the first magnetic block (21), a long strip protrusion being arranged at one end of the second magnetic block (22), and the other end of the second magnetic block (22) and the second connecting tube (20) being mutually adsorbed.

Images