Locking device for installing ligator under endoscope

Abstract

The invention provides a locking device for mounting a ligator under an endoscope, which comprises a handle shell, the handle shell comprises a first shell and a second shell, and the first shell and the second shell are clamped front and back to form the handle shell with a horizontal part and a handheld part; the number of the plug pin openings is two, the plug pin openings are symmetrically formed in the horizontal parts of the first shell and the second shell respectively, and the plug pin moves between the two plug pin openings; the disposable anorectal ligator is in butt joint with the handle shell of the electronic anorectal inspectoscope in a matched mode through a self-locking structure formed by matching the male head and the female head by adopting a front-back pushing plug pin type structure, and compared with a traditional method that after an inspection accessory such as the anorectal ligator is replaced, an assembly for fixing does not need to be replaced, and the operation is convenient. The equipment is simple in structure, locking and unlocking can be operated by a single hand as long as the equipment is pushed forwards and backwards, and the operation speed is high.

Description

Technical Field

[0001] This invention relates to a locking device for installing an endoscopic ligator, belonging to the field of electronic anorectal examination endoscopes. Background Technology

[0002] The electronic anorectal endoscope displays images of the patient's lesions clearly on a computer screen. Its small diameter allows for insertion through the anus into the intestines, enabling multi-angle and multi-directional examination and treatment. The new, highly intelligent computer workstation allows for random image capture, facilitating comparison, retrieval, and consultation of lesions. It plays a crucial role in the diagnosis and treatment of diseases such as gastritis, peptic ulcers, gastrointestinal bleeding, esophageal cancer, gastric cancer, colorectal cancer, colorectal polyps, various types of enteritis, and hemorrhoids.

[0003] The electronic anorectal endoscope is used in conjunction with a disposable anoscope and an anorectal ligator. The anorectal ligator is equipped with a negative pressure channel for connecting a negative pressure tube, a clamp channel for instrument entry and exit, and an endoscope channel for connecting the endoscope. In particular, the negative pressure channel is used to suction lesions with negative pressure by connecting a negative pressure suction device to the electronic anorectal endoscope.

[0004] The existing patent application number is CN201921213433.X, and the patent application title is a disposable anorectal hemorrhoid ligation device with a ligation component connection and fixing device. Pushing the push button will cause the locking clamp to loosen the grab at the end of the long tube where the locking groove is provided. Remove the ligation component connection and fixing device from the front of the shell, and then replace it with a matching spare ligation component connection and fixing device and insert it into the grab at the front of the shell. Pushing the push button will cause the locking clamp to lock the grab at the end of the long tube where the locking groove is provided. After replacing the spare ligation component connection and fixing device, the above steps can be followed to perform adsorption ligation of other hemorrhoid tissue or rectal prolapse.

[0005] However, the following problems still exist:

[0006] The use of disposable anoscopes and anorectal ligators compatible with electronic examination endoscopes requires the replacement of different ligation components to connect and fix the device, and the transmission is complex, making it impossible to quickly tighten the examination accessories with one hand.

[0007] Therefore, the present invention provides a locking device for installing an endoscopic ligator that can quickly lock in place without requiring replacement of the locking components. Summary of the Invention

[0008] This invention provides a locking device for installing an endoscopic ligator, which can effectively solve the above-mentioned problems.

[0009] This invention is implemented as follows:

[0010] A locking device for installing an endoscopic ligator includes a handle housing, the handle housing comprising a first housing and a second housing, the first housing and the second housing being engaged with each other to form a handle housing having a horizontal portion and a hand-held portion;

[0011] The pin and the pin opening, wherein there are two pin openings, which are symmetrically opened on the horizontal parts of the first housing and the second housing respectively, and the pin moves between the two pin openings;

[0012] The device has a male and a female connector. The male connector is fixed to a pin, and the female connector is located on the mounting head of the anorectal ligator. When the male and female connectors are engaged and locked, the anorectal ligator is fixed inside the horizontal part of the handle housing.

[0013] As a further improvement, the pin includes a pin body, an extension, and a spring. The pin body has extensions on both the front and rear sides. The extensions are located inside the handle housing and extend out of the pin opening to be exposed to the outside.

[0014] The spring is fitted onto the protrusion and is located inside the handle housing.

[0015] As a further improvement, the main body of the pin includes a fixing part and an extension post. The fixing part is a cuboid, and the extension post is fixed in the middle of the front and rear end faces of the fixing part. The extension post is fitted with a protruding part.

[0016] It also includes a limiting member, with a mounting groove formed on the end face of the first end of the fixing part. The limiting member is accommodated in the mounting groove, and the mounting groove and the limiting member are interference fit.

[0017] As a further improvement, the protrusion is a hollow cylinder, and one end of the protrusion is open.

[0018] As a further improvement, the end of the limiting member not embedded in the mounting groove is bullet-shaped and has a smooth surface.

[0019] As a further improvement, a horizontal through hole is provided on the first end face of the fixing part adjacent to the mounting groove.

[0020] As a further improvement, side grooves are provided on the sides of both ends of the extension column, and the side grooves extend to the ends of the extension column.

[0021] As a further improvement, the male end is disposed on the upper end face of the fixing part corresponding to the limiting member, and the male end is a wedge-shaped block.

[0022] As a further improvement, the angle between the rear end face of the male head away from the limiting member and the top end face of the fixing part is an acute angle.

[0023] The beneficial effects of this invention are:

[0024] ① This invention adopts a forward and backward push-pin structure, and through the self-locking structure of male and female heads, it fits and connects the disposable anorectal ligator with the handle shell of the electronic anorectal examination endoscope. Compared with the traditional method, after changing the examination accessories such as the anorectal ligator, it is not necessary to replace the fixing components. Moreover, the device has a simple structure, and it can be operated and locked and unlocked with one hand by simply pushing it forward and backward, which is fast.

[0025] ② The protruding part of this invention is located inside the handle housing and extends out from the pin hole to be exposed to the outside, so that it can be operated directly with one hand. When one end of the protruding part is completely exposed to the outside of the first or second housing, the end of the other end of the protruding part is flush with the outer side of the second or first housing. When placed on the operating table, there is no raised part, and the overall appearance is very beautiful.

[0026] ③ The angle between the rear end face of the male head away from the limiting member and the top end face of the fixing part of the present invention is an acute angle, that is, the contact end of the male head and the female head is the sharp end, which makes it convenient to contact and lock.

[0027] ④ The positioning component of this invention is a square component with a positioning hole in the middle. The positioning hole and the pin opening are horizontally connected, which increases the contact area between the pin and the positioning hole and avoids wear caused by repeated pushing and pulling in the pin opening. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a locking device for installing an endoscopic ligator in use, according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the internal structure of a locking device for installing an endoscopic ligator, provided in an embodiment of the present invention.

[0031] Figure 3 This is a partial exploded view of the locking device for installing an endoscopic ligator provided in an embodiment of the present invention.

[0032] Figure 4 This is a schematic diagram of the structure of the first or second housing of a locking device for installing an endoscopic ligator, provided in an embodiment of the present invention.

[0033] Figure 5This is a schematic diagram of a locking device for installing an endoscopic ligator without a spring, provided by an embodiment of the present invention.

[0034] Figure 6 This is a schematic diagram of the structure of the locking device for installing an endoscopic ligator provided in an embodiment of the present invention.

[0035] Figure 7 This is an exploded view of the pin structure of a locking device for installing an endoscopic ligator, provided in an embodiment of the present invention.

[0036] Figure 8 This is a schematic diagram of the anorectal ligator structure provided by an embodiment of the present invention, which includes a locking device for installing an endoscopic ligator. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] Reference Figures 1-8 As shown, this embodiment provides a specific implementation of a locking device for installing an endoscopic ligator, including a handle housing 10. The handle housing 10 comprises a first housing 101 and a second housing 102. The first housing 101 and the second housing 102 are engaged to form a handle housing 10 having a horizontal portion 103 and a handheld portion 104, as detailed below. Figures 1 to 3 As shown;

[0040] The pin 20 and the pin opening 30 are provided. There are two pin openings 30, which are symmetrically opened on the horizontal portions 103 on the first housing 101 and the second housing 102 respectively. The pin 20 moves between the two pin openings 30.

[0041] The male head 40 and the female head 50 are fixed on the pin 20 and the female head 50 is located on the mounting head 601 of the anorectal ligator 60. When the male head 40 and the female head 50 are engaged and locked, the anorectal ligator 60 is fixed inside the horizontal part 103 of the handle housing 10.

[0042] This invention adopts a forward and backward push-in pin structure, and through the self-locking structure of the male head 40 and the female head 50, the disposable anorectal ligator 60 is matched and docked with the handle shell 10 of the electronic anorectal examination endoscope. Compared with the traditional method, after changing the examination accessories such as the anorectal ligator 60, it is not necessary to replace the fixing components. Moreover, the device has a simple structure, and it can be operated and locked and unlocked with one hand by simply pushing it forward and backward, and the operation speed is fast.

[0043] After the disposable anorectal ligator 60 is successfully mated with the handle housing 10 of the electronic anorectal endoscope, the pin 20 is pushed between the two pin ports 30 to lock the male head 40 of the pin 20 and the female head 50 on the anorectal ligator 60, ensuring that the two are in close contact and will not fall off.

[0044] After the rectal ligator 60 is used, push the pin 20 in the opposite direction to separate the male head 40 of the pin 20 from the female head 50 on the rectal ligator 60, remove the rectal ligator 60, and discard the disposable rectal ligator 60.

[0045] The pin 20 includes a pin body 201, an extension 202, and a spring 203. The pin body 201 has extensions 202 on both the front and rear sides. The extensions 202 are located inside the handle housing 10 and extend out from the pin opening 30 to the outside, allowing for direct operation with one hand. When one end of the extension 202 is completely exposed outside the first housing 101 or the second housing 102, the end of the other end of the extension 202 is flush with the outer side of the second housing 102 or the first housing 101. When placed on the operating table, there are no raised parts, resulting in a strong overall aesthetic appeal.

[0046] The spring 203 is sleeved on the protrusion 202 and located inside the handle housing 10. The spring provides both action and reaction forces when the pin 20 is pushed, making it easier and less strenuous to push the pin 20.

[0047] Furthermore, the pin body 201 includes a fixing part 211 and an extension post 212. The fixing part 211 is a cuboid, and the extension post 212 is fixed in the middle of the front and rear end faces of the fixing part 211. The extension post 212 is fitted with a protrusion part 202.

[0048] It also includes a limiting member 213. An installation groove 214 is formed on the end face of the first end of the fixing part 211. The limiting member 213 is accommodated in the installation groove 214. The installation groove 214 and the limiting member 213 adopt an interference fit. The design of the limiting member 213 is such that when the disposable anorectal ligator 60 is installed, it can be conveniently aligned with the female head 50 on the disposable anorectal ligator 60 and the male head 40 on the pin 20 without going too deep, thus playing a role in stopping the insertion.

[0049] Furthermore, the end of the limiting member 213 that is not embedded in the mounting groove 214 is bullet-shaped with a smooth and rounded surface, so as not to scratch the disposable anorectal ligator 60, causing powder to fall off and affecting the treatment effect. The disposable anorectal ligator 60 is made of plastic, which is easily scratched and produces debris. Its strong light-guiding properties increase the safety of use.

[0050] Furthermore, the protrusion 202 is a hollow column, and one end of the protrusion 202 is open, which makes it easy to fit onto the extension column 212. If there is wear during use, only the protrusion 202 needs to be replaced, and the entire part does not need to be replaced.

[0051] As one possible specific embodiment of the present invention, a horizontal through hole 215 is opened on the first end face of the fixing part 211 adjacent to the mounting groove 214, which reduces the overall mass of the fixing part 211 and even the entire pin 20, making it easier to push horizontally. In other words, the overall weight of the pin 20 is small, and the resistance is small and the flexibility is high during the pushing process.

[0052] Please refer to Figure 7 As one possible specific embodiment of the present invention, the side grooves 216 are opened on the side surfaces at both ends of the extension column 212. The side grooves 216 extend to the end surfaces of the extension column 212, and the protrusion 202 is fitted onto the extension column 212. Since the outer side surface of the extension column 212 is not in complete contact with the inner wall of the protrusion 202, no negative pressure is generated when the protrusion 202 is disassembled and assembled, making it difficult to disassemble.

[0053] Please refer to Figures 7-8 As one possible specific embodiment of the present invention, the male head 40 is disposed on the upper end face of the fixing part 211 corresponding to the limiting member 213. The male head 40 is a wedge-shaped block, which cooperates with the female head 50 disposed on the anorectal ligator 60 to achieve locking.

[0054] Furthermore, the female head 50 is composed of two parallel second wedges, and the space formed between two adjacent second wedges fits with the male head 40.

[0055] Furthermore, the angle between the rear end face of the male head 40 away from the limiting member 213 and the top end face of the fixing part 211 is an acute angle, that is, the contact end of the male head 40 with the female head 50 is the sharp end, which facilitates contact and locking.

[0056] Please refer to Figure 4 As a possible specific embodiment of the present invention, a positioning member 70 is provided on the inner wall of the pin port 30 on the first outer shell 101 and the second outer shell 102, and the positioning member 70 is an integral structure with the first outer shell 101 or the second outer shell 102.

[0057] Furthermore, the positioning member 70 is a square member with a positioning hole 701 in the middle. The positioning hole 701 and the pin opening 30 pass through horizontally, which increases the contact area between the pin 20 and the positioning hole 701 and avoids wear caused by repeated pushing and pulling in the pin opening 30.

[0058] In one specific embodiment, the positioning hole 701 of the positioning member 70 is provided with a plurality of retaining strips 702. These retaining strips 702 are evenly and equidistantly distributed to increase the friction between the protruding part 202 of the pin 20 and the positioning member 70, and to prevent the pin 20 from sliding left and right on its own without the action of external force.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A locking device for installing an endoscopic ligator, characterized in that, Includes a handle housing (10), which comprises a first housing (101) and a second housing (102). The first housing (101) and the second housing (102) are engaged to form a handle housing (10) having a horizontal portion (103) and a hand-held portion (104). The pin (20) and the pin opening (30) are provided. There are two pin openings (30), which are symmetrically opened on the horizontal part (103) on the first housing (101) and the second housing (102), respectively. The pin (20) moves between the two pin openings (30). The male head (40) and the female head (50) are fixed on the pin (20) and the female head (50) are located on the mounting head (601) of the anorectal ligator (60). When the male head (40) and the female head (50) are engaged and locked, the anorectal ligator (60) is fixed inside the horizontal part (103) of the handle housing (10).

2. The locking device for installing an endoscopic ligator as described in claim 1, characterized in that, The pin (20) includes a pin body (201), an extension (202), and a spring (203). The pin body (201) has extensions (202) on both the front and rear sides. The extensions (202) are located inside the handle housing (10) and extend out from the pin opening (30) to the outside. The spring (203) is fitted onto the protrusion (202) and is located inside the handle housing (10).

3. The locking device for installing an endoscopic ligator as described in claim 2, characterized in that, The main body (201) of the pin includes a fixing part (211) and an extension post (212). The fixing part (211) is a cuboid. An extension post (212) is fixed in the middle of the front and rear end faces of the fixing part (211). An extension part (202) is fitted on the extension post (212). It also includes a limiting member (213), and an installation groove (214) is provided on the end face of the first end of the fixing part (211). The limiting member (213) is accommodated in the installation groove (214), and the installation groove (214) and the limiting member (213) are interference fit.

4. The locking device for installing an endoscopic ligator as described in claim 2, characterized in that, The protrusion (202) is a hollow column, and one end of the protrusion (202) is open.

5. The locking device for installing an endoscopic ligator as described in claim 3, characterized in that, The end of the limiting member (213) that is not embedded in the mounting groove (214) is bullet-shaped and has a smooth surface.

6. The locking device for installing an endoscopic ligator as described in claim 3, characterized in that, The fixing part (211) has a horizontal through hole (215) on the first end face adjacent to the mounting groove (214).

7. A locking device for installing an endoscopic ligator as described in claim 3, characterized in that, Side grooves (216) are opened on the sides at both ends of the extension column (212), and the side grooves (216) extend to the end faces of the extension column (212).

8. The locking device for installing an endoscopic ligator as described in claim 1, characterized in that, The male head (40) is disposed on the upper end face of the fixing part (211) corresponding to the limiting member (213), and the male head (40) is a wedge-shaped block.

9. A locking device for installing an endoscopic ligator as described in claim 8, characterized in that, The angle between the rear end face of the male head (40) away from the limiting member (213) and the top end face of the fixing part (211) is an acute angle.

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