Peristaltic pump pipeline system and suction equipment for ophthalmologic operation

Abstract

The utility model provides a peristaltic pump pipeline system and suction equipment for ophthalmologic operations, and relates to the technical field of medical instruments, after a double-wheel peristaltic pump is started, rollers on a first roller group and a second roller group alternately extrude a first hose and a second hose, so that a first pipeline forms continuous negative pressure, and a second pipeline forms negative pressure; liquid flows respectively enter the first hose and the second hose through the first three-way structure, and along with the movement of the double-wheel peristaltic pump, the liquid is extruded by the rollers in the first hose and the second hose to enter the second three-way structure, and enters the second pipeline and the discharge system after being converged. When the rolling wheels of the first rolling wheel group completely extrude the first hose, the rolling wheels of the second rolling wheel group start to extrude the second hose, and the first hose and the second hose are connected in parallel through the first three-way structure and the second three-way structure alternately, so that pulsation generated by each other is greatly offset, and the flow of the peristaltic pump is more stable; and the anterior chamber is more stable in the operation.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a peristaltic pump pipeline system and suction equipment used for ophthalmic surgery. Background Art

[0002] Phacoemulsification cataract surgery involves fragmenting and aspirating the cataract nucleus using an ultrasonic handpiece. Fluid from an infusion bottle is introduced into the anterior chamber of the eye through the ultrasonic handpiece, while a system pump simultaneously aspirates the fragmented nucleus and fluid out. During the procedure, the anterior chamber must be stable to prevent soft eye. Therefore, the equipment must maximize suction stability.

[0003] Existing peristaltic pump systems used in ophthalmic surgery are mostly single-pipeline systems. Due to the periodic squeezing and relaxation of the rollers on the runner, the pulsation of the pipeline system is relatively large. The intuitive manifestation is: as the roller begins to squeeze the hose, backflow will occur at the pipeline inlet of the peristaltic pump in the initial stage, and at the pipeline outlet of the peristaltic pump, the flow rate will periodically reach zero. Therefore, the flow pulsation caused by this single-pipeline peristaltic pump greatly affects the stability of the anterior chamber during surgery. Utility Model Content

[0004] The purpose of the utility model is to provide a peristaltic pump piping system and a suction device for ophthalmic surgery, so as to alleviate the technical problem of poor pressure stability of the existing suction equipment.

[0005] In a first aspect, the present invention provides a peristaltic pump piping system for ophthalmic surgery, comprising: a first pipeline, a first three-way structure, a first hose, a second hose, a double-wheel peristaltic pump, a second three-way structure, and a second pipeline;

[0006] The first three-way structure includes a first main inlet, and a first branch outlet and a second branch outlet respectively connected to the first main inlet; the second three-way structure includes a first branch inlet and a second branch inlet, and a first main outlet respectively connected to the first branch inlet and the second branch inlet;

[0007] One end of the first pipeline is connected to the first main inlet; one end of the first hose is connected to the first branch outlet, and the other end is connected to the first branch inlet; one end of the second hose is connected to the second branch outlet, and the other end is connected to the second branch inlet; the first main outlet is connected to one end of the second pipeline;

[0008] The dual-wheel peristaltic pump includes a housing and a first roller group and a second roller group that move synchronously. The first hose is located between the housing and the first roller group, and the second hose is located between the housing and the first roller group. The rollers on the first roller group and the second roller group are staggered.

[0009] Furthermore, the number of rollers on the first roller group is the same as the number of rollers on the second roller group;

[0010] And / or, the peristaltic pump piping system for ophthalmic surgery includes a negative pressure chamber, the negative pressure chamber has a liquid inlet and a liquid outlet, the liquid inlet is connected to one end of the first pipeline; the liquid outlet is connected to the first main inlet.

[0011] Furthermore, the number of rollers on the first roller group and the number of rollers on the second roller group are both four, and the phase difference between the four rollers on the first roller group is 90°; the phase difference between the four rollers on the second roller group is 90°; and the phase difference between the rollers on the first roller group and the adjacent rollers on the second roller group is 45°;

[0012] The portion of the housing used for squeezing the first hose and the second hose is an arc surface, and the phase difference between the starting point and the end point of the arc surface is 180°.

[0013] Furthermore, the housing includes a main body and an extrusion portion, and the main body is provided with a first detachable connection structure and a second detachable connection structure, the first detachable connection structure is used to connect the ends of the first hose and the second hose on the same side, and the second detachable connection structure is used to connect the other ends of the first hose and the second hose on the same side;

[0014] The extrusion part is movably connected to the main body. After the extrusion part is connected to the main body in place, the extrusion part cooperates with the rollers on the first roller group and the rollers on the second roller group to squeeze the first hose and the second hose.

[0015] Furthermore, one end of the extrusion portion is hinged to the main body, the other end of the extrusion portion is provided with a first locking structure, the main body is provided with a second locking structure, and the first locking structure and the second locking structure are connected.

[0016] Furthermore, the dual-wheel peristaltic pump includes a first baffle, a second baffle and a third baffle arranged in parallel and at intervals, the first roller group is located between the first baffle and the second baffle, and the second roller group is located between the second baffle and the third baffle.

[0017] In a second aspect, the present invention provides a suction device comprising the above-mentioned peristaltic pump piping system for ophthalmic surgery.

[0018] Furthermore, it includes a handle, a first end of the handle is provided with a suction hole, and the other end of the first pipeline is connected to the suction hole.

[0019] Furthermore, it includes a perfusion system, a perfusion hole is provided on the side wall of the head end of the handle, and the perfusion system is connected to the perfusion hole through a pipeline.

[0020] Furthermore, the perfusion system includes a perfusion bottle, a perfusion pipe and a valve. One end of the perfusion pipe is connected to the perfusion bottle, and the other end is connected to the perfusion hole. The valve is arranged on the perfusion pipe.

[0021] The utility model has at least the following advantages or beneficial effects:

[0022] The peristaltic pump piping system for ophthalmic surgery provided by the utility model includes: a first pipeline, a first three-way structure, a first hose, a second hose, a double-wheel peristaltic pump, a second three-way structure and a second pipeline; the first three-way structure includes a first main inlet, and a first branch outlet and a second branch outlet respectively connected to the first main inlet; the second three-way structure includes a first branch inlet and a second branch inlet, and a first main outlet respectively connected to the first branch inlet and the second branch inlet; one end of the first pipeline is connected to the first main inlet; one end of the first hose is connected to the first branch outlet, and the other end is connected to the first branch inlet; one end of the second hose is connected to the second branch outlet, and the other end is connected to the second branch inlet; the first main outlet is connected to one end of the second pipeline; the double-wheel peristaltic pump includes a shell and a first roller group and a second roller group that move synchronously, the first hose is located between the shell and the first roller group, and the second hose is located between the shell and the first roller group; the rollers on the first roller group and the second roller group are staggered.

[0023] After the dual-wheel peristaltic pump is activated, the rollers on the first and second roller groups alternately squeeze the first and second hoses, creating a continuous negative pressure in the first pipeline. Liquid flows through the first three-way structure into the first and second hoses, respectively. As the dual-wheel peristaltic pump moves, the liquid in the first and second hoses is squeezed by the rollers into the second three-way structure, where it merges and enters the second hose, exiting the system. When the rollers of the first roller group completely squeeze the first hose, the rollers of the second roller group begin squeezing the second hose. These two processes alternate, and the first and second hoses are connected in parallel through the first and second three-way structures. This greatly offsets the pulsation generated by each other, making the peristaltic pump flow more stable and the anterior chamber more stable during surgery.

[0024] The suction device provided by the present invention includes the above-mentioned peristaltic pump piping system for ophthalmic surgery. Because the suction device provided by the present invention uses the above-mentioned peristaltic pump piping system for ophthalmic surgery, the suction device provided by the present invention also has the advantages of the peristaltic pump piping system for ophthalmic surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of a peristaltic pump piping system for ophthalmic surgery provided by an embodiment of the present utility model;

[0027] Figure 2 A schematic diagram of a first roller assembly and a second roller assembly of a peristaltic pump piping system for ophthalmic surgery provided by an embodiment of the present utility model;

[0028] Figure 3 A schematic diagram of a suction device provided in an embodiment of the present invention.

[0029] Icons: 1-first pipeline; 2-negative pressure chamber; 3-first three-way structure; 4-first hose; 5-second hose; 61-first roller group; 62-second roller group; 63-main body; 64-extrusion part; 65-first detachable connection structure; 66-second detachable connection structure; 67-locking buckle; 68-locking tongue; 7-second three-way structure; 8-second pipeline; 9-fixing plate; 10-motor; 11-handle; 12-suction hole; 13-irrigation hole; 14-irrigation bottle; 15-irrigation pipeline; 16-valve; 17-anterior chamber of the eye. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] 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 rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0035] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] like Figure 1 and Figure 2 As shown, the peristaltic pump piping system for ophthalmic surgery provided by the present invention may include: a first pipeline 1, a negative pressure chamber 2, a first three-way structure 3, a first hose 4, a second hose 5, a double-wheel peristaltic pump, a second three-way structure 7, a second pipeline 8, and a fixing plate 9. The first pipeline 1 can serve as a liquid inlet, and the second pipeline 8 as a liquid outlet; in other feasible solutions, the first pipeline 1 can serve as a liquid outlet, and the second pipeline 8 as a liquid inlet.

[0037] The first three-way structure 3 includes a first main inlet, and a first branch outlet and a second branch outlet respectively connected to the first main inlet, which plays a diversion role. The second three-way structure 7 includes a first branch inlet and a second branch inlet, and a first main outlet respectively connected to the first branch inlet and the second branch inlet, which plays a converging role.

[0038] The negative pressure chamber 2 has a liquid inlet and a liquid outlet. The liquid inlet is connected to one end of the first pipeline 1; the liquid outlet is connected to the first main inlet. A negative pressure sensor can be installed in the negative pressure chamber 2 to monitor the pressure in the chamber in real time.

[0039] One end of the first hose 4 is connected to the first branch outlet and the other end is connected to the first branch inlet. One end of the second hose 5 is connected to the second branch outlet and the other end is connected to the second branch inlet. The first main outlet is connected to one end of the second pipeline 8. The liquid in the negative pressure chamber 2 flows through the first three-way structure 3 and enters the first hose 4 and the second hose 5 respectively. The liquid in the first hose 4 and the second hose 5 can then be combined through the second three-way structure 7 and enter the second pipeline 8.

[0040] The dual-wheel peristaltic pump includes a housing and a first roller assembly 61 and a second roller assembly 62 that move synchronously. The first roller assembly 61 and the second roller assembly 62 are driven by the same motor 10. The first hose 4 is located between the housing and the first roller assembly 61, and the second hose 5 is located between the housing and the first roller assembly 61. The rollers on the first and second roller assemblies 61 and 62 are arranged in an alternating pattern. When the first and second roller assemblies 61 and 62 rotate, the rollers cooperate with the housing to squeeze the first and second hoses 4 and 5.

[0041] After the dual-wheel peristaltic pump is activated, the rollers on the first roller assembly 61 and the second roller assembly 62 alternately squeeze the first hose 4 and the second hose 5, creating a continuous negative pressure in the first pipeline 1. Liquid flows through the first pipeline 1 into the negative pressure chamber 2, and then through the first three-way structure 3 into the first hose 4 and the second hose 5, respectively. As the dual-wheel peristaltic pump moves, the liquid in the first hose 4 and the second hose 5 is squeezed by the rollers into the second three-way structure 7. After merging, it enters the second pipeline 8 and is discharged from the system. When the rollers of the first roller assembly 61 have completely squeezed the first hose 4, the rollers of the second roller assembly 62 begin squeezing the second hose 5. The two alternate, and the first and second hoses 4 and 5 are connected in parallel through the first three-way structure 3 and the second three-way structure 7. This greatly offsets the pulsation generated by each other, making the peristaltic pump flow more stable and the anterior chamber more stable during surgery.

[0042] The first roller assembly 61 and the second roller assembly 62 can both have four rollers, and the four rollers on the first roller assembly 61 have a 90° phase difference; the four rollers on the second roller assembly 62 have a 90° phase difference; and the rollers on the first roller assembly 61 and the adjacent rollers on the second roller assembly 62 have a 45° phase difference. The portion of the housing used to squeeze the first and second hoses 4 and 5 is an arc surface, and the phase difference between the starting and ending points of the arc surface is 180°. Therefore, when the rollers on the first roller assembly 61 begin squeezing the first hose 4, the rollers on the second roller assembly 62 have not yet squeezed the second hose 5. When the rollers on the first roller assembly 61 squeeze the first hose 4, the rollers on the second roller assembly 62 begin squeezing the second hose 5. The two processes alternate, and the first and second hoses 4 and 5 are connected in parallel via the first and second three-way structures 3 and 7. This significantly offsets the pulsation generated by each other, making the peristaltic pump flow more stable and the anterior chamber more stable during surgery.

[0043] The shell includes a main body 63 and an extrusion portion 64. The main body 63 is provided with a first detachable connecting structure 65 and a second detachable connecting structure 66. The first detachable connecting structure 65 is used to connect the ends of the first hose 4 and the second hose 5 on the same side, and the second detachable connecting structure 66 is used to connect the other ends of the first hose 4 and the second hose 5 on the same side; the extrusion portion 64 is movably connected to the main body 63. After the extrusion portion 64 is connected to the main body 63 in place, the extrusion portion 64 cooperates with the roller on the first roller group 61 and the roller of the second roller group 62 to squeeze the first hose 4 and the second hose 5.

[0044] Specifically, the first detachable connection structure 65 and the second detachable connection structure 66 may both be pipe clamps.

[0045] The first and second hoses 4, 5 are consumables that need to be replaced after each surgery. Therefore, a first detachable connecting structure 65 and a second detachable connecting structure 66 are provided on the main body 63 to connect the ends of the first and second hoses 4, 5, achieving a detachable connection. A movable extrusion portion 64 allows the first and second hoses 4, 5 to be exposed, facilitating their removal. Conversely, after the extrusion portion 64 is installed in place with the main body 63, it cooperates with the rollers of the first and second roller groups 61 and 62 to squeeze the first and second hoses 4, 5.

[0046] Specifically, one end of the extrusion portion 64 is hinged to the main body 63, and the other end of the extrusion portion 64 is provided with a first locking structure. The main body 63 is provided with a second locking structure, and the first locking structure and the second locking structure are connected. The first locking structure can be a lock buckle 67, and the second locking structure can be a lock tongue 68. The lock buckle 67 and the lock tongue 68 are locked after being engaged. By pulling the lock buckle 67, the lock buckle 67 and the lock tongue 68 can be separated to unlock.

[0047] To prevent the first and second hoses 4 and 5 from deviating during the extrusion process, the dual-wheel peristaltic pump includes a first baffle, a second baffle, and a third baffle arranged in parallel and spaced apart. A first trough is formed between the first and second baffles, with a width approximately equal to the outer diameter of the first hose 4. The first roller assembly 61 is located between the first and second baffles, and the first and second baffles stop the first hose 4. A second trough is formed between the second and third baffles, and the second roller assembly 62 is located between the second and third baffles, and the second and third baffles stop the second hose 5.

[0048] The suction device provided by the present invention includes the above-mentioned peristaltic pump piping system for ophthalmic surgery. Because the suction device provided by the present invention uses the above-mentioned peristaltic pump piping system for ophthalmic surgery, the suction device provided by the present invention also has the advantages of the peristaltic pump piping system for ophthalmic surgery.

[0049] like Figure 3 As shown, the suction device includes a handle 11, with a suction hole 12 provided at the front end of the handle 11. The other end of the first pipeline 1 is connected to the suction hole 12. The handle 11 may have an ultrasonic function. The front end of the handle 11 can be inserted into the anterior chamber 17 of the eye to aspirate the fragmented nucleus through the suction hole 12.

[0050] The suction device includes an irrigation system. An irrigation hole 13 is provided on the side wall of the head end of the handle 11. The irrigation system is connected to the irrigation hole 13 via a pipeline. Specifically, the irrigation system includes an irrigation bottle 14, an irrigation pipe 15, and a valve 16. One end of the irrigation pipe 15 is connected to the irrigation bottle 14, and the other end is connected to the irrigation hole 13. The valve 16 is provided on the irrigation pipe 15 to control the flow rate. The irrigation liquid in the irrigation bottle 14 enters the anterior chamber 17 of the eye through the ultrasonic handle 11, and the system pump simultaneously sucks the fragmented nucleus and liquid out of the anterior chamber 17 of the eye.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A peristaltic pump piping system for ophthalmic surgery, characterized in that: include: A first pipeline (1), a first three-way structure (3), a first hose (4), a second hose (5), a double-wheel peristaltic pump, a second three-way structure (7) and a second pipeline (8); The first three-way structure (3) includes a first main inlet, and a first branch outlet and a second branch outlet respectively connected to the first main inlet; the second three-way structure (7) includes a first branch inlet and a second branch inlet, and a first main outlet respectively connected to the first branch inlet and the second branch inlet; One end of the first pipeline (1) is connected to the first main inlet; one end of the first hose (4) is connected to the first branch outlet, and the other end is connected to the first branch inlet; one end of the second hose (5) is connected to the second branch outlet, and the other end is connected to the second branch inlet; the first main outlet is connected to one end of the second pipeline (8); The double-wheel peristaltic pump comprises a housing and a first roller group (61) and a second roller group (62) that move synchronously, wherein the first hose (4) is located between the housing and the first roller group (61), and the second hose (5) is located between the housing and the first roller group (61); the rollers on the first roller group (61) and the second roller group (62) are arranged in an alternating manner.

2. The peristaltic pump piping system for ophthalmic surgery according to claim 1, characterized in that: The number of rollers on the first roller group (61) and the number of rollers on the second roller group (62) are the same; And / or, the peristaltic pump piping system for ophthalmic surgery comprises a negative pressure chamber, the negative pressure chamber (2) having a liquid inlet and a liquid outlet, the liquid inlet being connected to one end of the first pipeline (1); and the liquid outlet being connected to the first main inlet.

3. The peristaltic pump piping system for ophthalmic surgery according to claim 1, characterized in that: The number of rollers on the first roller group (61) and the number of rollers on the second roller group (62) are both four, and the phase difference between the four rollers on the first roller group (61) is 90°; the phase difference between the four rollers on the second roller group (62) is 90°; the phase difference between the rollers on the first roller group (61) and the rollers on the adjacent second roller group (62) is 45°; The portion of the housing used for squeezing the first hose (4) and the second hose (5) is an arc surface, and the phase difference between the starting point and the end point of the arc surface is 180°.

4. The peristaltic pump piping system for ophthalmic surgery according to claim 1, characterized in that: The housing comprises a main body (63) and an extrusion portion (64); a first detachable connection structure (65) and a second detachable connection structure (66) are provided on the main body (63); the first detachable connection structure (65) is used to connect the ends of the first hose (4) and the second hose (5) on the same side; and the second detachable connection structure (66) is used to connect the other ends of the first hose (4) and the second hose (5) on the same side. The extrusion portion (64) is movably connected to the main body (63). After the extrusion portion (64) is connected to the main body (63), the extrusion portion (64) cooperates with the roller on the first roller group (61) and the roller of the second roller group (62) to squeeze the first hose (4) and the second hose (5).

5. The peristaltic pump piping system for ophthalmic surgery according to claim 4, characterized in that: One end of the extrusion portion (64) is hinged to the main body (63), the other end of the extrusion portion (64) is provided with a first locking structure, and the main body (63) is provided with a second locking structure, and the first locking structure and the second locking structure are connected.

6. The peristaltic pump piping system for ophthalmic surgery according to claim 2, characterized in that: The double-wheel peristaltic pump comprises a first baffle, a second baffle and a third baffle arranged in parallel and at intervals, the first roller group (61) is located between the first baffle and the second baffle, and the second roller group (62) is located between the second baffle and the third baffle.

7. A suction device, characterized in that: A peristaltic pump piping system for ophthalmic surgery comprising the peristaltic pump piping system according to any one of claims 1 to 6.

8. The suction device according to claim 7, characterized in that It comprises a handle (11), the first end of the handle (11) is provided with a suction hole (12), and the other end of the first pipeline (1) is connected to the suction hole (12).

9. The suction device according to claim 8, characterized in that It comprises a perfusion system, wherein a perfusion hole (13) is provided on the side wall of the head end of the handle (11), and the perfusion system is connected to the perfusion hole (13) through a pipeline.

10. The suction device according to claim 9, characterized in that The perfusion system comprises a perfusion bottle (14), a perfusion pipe (15) and a valve (16); one end of the perfusion pipe (15) is connected to the perfusion bottle (14), and the other end is connected to the perfusion hole (13); and the valve (16) is arranged on the perfusion pipe (15).

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