Surge simulation device for super breast surgery

Abstract

The utility model discloses a surging simulation device for a super breast surgery, which comprises a simulation block, a handle and a plug assembly, and is characterized in that a simulation cavity for an experiment is arranged in the simulation block; the simulation cavity is at least communicated with a first connecting channel used for exhausting, a second connecting channel used for being connected with a handle, a third connecting channel used for being connected with a plug assembly and a fourth connecting channel sealed by a soft film, the first connecting channel is connected with an exhaust outlet, and the first connecting channel and the simulation cavity extend in the same direction; and the top of the inner pipe wall of the first connecting channel is flush with the top of the inner wall of the simulation cavity. According to the utility model, the first connecting channel and the simulation cavity extend in the same direction, and the tops of the first connecting channel and the simulation cavity are flush, so that bubbles in the simulation cavity can be conveniently and completely discharged during pre-filling, and unnecessary interference to experimental data due to the fact that the bubbles are left in the simulation cavity is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ophthalmic surgery simulation experimental devices, in particular to a phacoemulsification surgery surge simulation device. Background Art

[0002] In modern cataract surgery, the phacoemulsification process is still the most risky link. The ultrasonic energy, nucleus, perfusion and other factors in a small space are rapidly intertwined in a short time and small space, and the energy changes instantly, making this link full of "electrical sparks". Especially at the moment when the ultrasonic handle "eats" the nucleus and removes the blockage, the high negative pressure in the instrument violently sucks the fluid in the anterior chamber, and the volume of the anterior chamber decreases rapidly, which is the anterior chamber surge after the blockage is removed. Since the surge occurs within the millisecond time range, compared with the time that humans can react, the surge occurs too quickly to make timely intervention difficult. The sudden decrease in aqueous humor volume can damage the cornea, iris, posterior capsule or suspension ligament. In extreme cases, the anterior chamber may even collapse completely, causing irreparable complications. How to maintain the stability of this "high-risk" link has become a common test for phacoemulsification instruments and surgeons.

[0003] Cataract phacoemulsification is currently the main surgical method for treating cataracts, and the phacoemulsifier is the key surgical equipment for cataract phacoemulsification. Therefore, for phacoemulsifiers, controlling the anterior chamber surge is still a great challenge and is also the goal of continuous innovation and replacement. Therefore, how to reasonably and scientifically simulate the surge in the design stage is very important for the design accuracy of the phacoemulsifier. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a surge simulation device for phacoemulsification surgery.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A phacoemulsification surge simulator comprises a simulation block, a handle and a plug assembly, wherein a simulation cavity for experiment is arranged inside the simulation block, wherein the simulation cavity is connected with at least a first connecting channel for exhaust, a second connecting channel for connecting the handle, a third connecting channel for connecting the plug assembly and a fourth connecting channel sealed by a soft film, wherein the first connecting channel is connected to an exhaust outlet, the first connecting channel and the simulation cavity extend in the same direction, and the top of the inner tube wall of the first connecting channel is flush with the top of the inner wall of the simulation cavity.

[0007] Preferably, the inner contour of the simulated cavity is a tube with a circular cross-section.

[0008] Preferably, the second connecting channel is coaxially arranged with the simulation cavity, and the inner contour of the second connecting channel matches the front end of the handle, the handle is supported by a bracket and is coaxial with the second connecting channel, and the front end of the handle is confined within the second connecting channel, and the front end of the handle has a through hole.

[0009] Preferably, the plug assembly includes a plug and a cylinder driving the plug to move, the bottom of the plug is fixedly connected to the cylinder head of the cylinder, the extension direction of the third connecting channel is perpendicular to the extension direction of the second connecting channel, and the plug moves in the third connecting channel under the drive of the cylinder to block or loosen the through hole.

[0010] Preferably, a spherical limit block is fixedly provided on the rod portion of the plug, and the third connecting channel includes a first section and a second section that are connected to each other, the first section is connected to the simulation cavity, and its inner diameter is smaller than that of the second section, the inner diameter of the second section gradually expands from the inside to the outside, and its inner diameter matches the limit block, so that the limit block is embedded in the second section to limit the extension distance of the head of the plug.

[0011] Preferably, the through hole is located at the front end of the handle, and the head of the plug moves up and down relative to the front end of the handle to block or release the through hole.

[0012] Preferably, the through hole is located at one side of the end of the handle, and the head of the plug moves up and down relative to one side of the handle to block or release the through hole.

[0013] Preferably, a rubber sleeve is provided on the head of the plug, and a limiting plane extending in the same direction as the plug is provided in the simulation cavity, and the limiting plane is flush with the edge of the second connecting channel to support the probe extending from the handle.

[0014] Preferably, the third connecting channel also includes a third section, the inner diameter of the third section is larger than the maximum inner diameter of the second section, and a step surface is formed between the third section and the second section, and a sealing ring is provided on the step surface to seal the connection between the second section and the limit block.

[0015] Preferably, a sealing member is fixedly connected to the side of the simulation block, and the sealing member has a convex portion, and the convex portion is embedded in the third section. The port of the convex portion confines the sealing ring in the third section and makes the inner wall of the sealing ring abut against the outer wall of the limit block.

[0016] The beneficial effects of the utility model are mainly reflected in:

[0017] 1. Extend the first connecting channel and the simulated cavity in the same direction, and set the tops of the two flush, so that the bubbles in the simulated cavity can be completely discharged during pre-injection, avoiding unnecessary interference of bubbles in the simulated cavity to the experimental data;

[0018] 2. Setting a fourth connection channel and placing a soft membrane on the fourth connection channel to simulate the elasticity of the vitreous surrounding tissue in the anterior chamber or vitrectomy surgery to increase the authenticity of the entire simulation experiment;

[0019] 3. Set up a plug to simulate blockage, and use a cylinder to drive the plug to move, to ensure that the blocking force and stroke of each plug are consistent, and make the simulated blockage consistent as much as possible to eliminate errors and improve the accuracy of the experiment;

[0020] 4. A bracket is provided to support the handle so that the moving position of the handle remains stable and can be conveniently connected with other devices for combined use to save space or facilitate location installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0022] Figure 1 : A schematic diagram of the first embodiment of the utility model;

[0023] Figure 2 : A partially enlarged cross-sectional view of the first embodiment of the utility model;

[0024] Figure 3 : A partially enlarged cross-sectional view of the second embodiment of the utility model;

[0025] Figure 4 : A partial cross-sectional view of the second embodiment of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0027] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0028] like Figures 1 to 4 As shown, the utility model discloses a phacoemulsification surge simulation device, comprising a simulation block 1, a handle 2 and a plug assembly, wherein a simulation cavity 100 for experiment is arranged inside the simulation block 1, and the simulation cavity 100 is connected with at least a first connecting channel 101 for exhaust, a second connecting channel 102 for connecting the handle 2, a third connecting channel 103 for connecting the plug assembly and a fourth connecting channel 104 sealed by a soft film 4, wherein the first connecting channel 101 is connected to the exhaust outlet, the first connecting channel 101 and the simulation cavity 100 extend in the same direction, and the top of the inner tube wall of the first connecting channel 101 is flush with the top of the inner wall of the simulation cavity 100.

[0029] In this solution, the first connecting channel 101 and the simulated cavity 100 extend in the same direction, and the tops of the two are arranged flush, so that the bubbles in the simulated cavity 100 can be completely discharged during pre-injection, avoiding bubbles remaining in the simulated cavity 100 and causing unnecessary interference to the experimental data.

[0030] The setting of the first connecting channel 101 can facilitate the placement of the perfusion needle and timely exhaust. The specific length of the first connecting channel 101 is determined according to the distance between the outer wall of the simulation block 1 and the inner wall of the simulation cavity 100. In other feasible embodiments, the length of the first connecting channel 101 can be close to zero, so that the end of the simulation cavity 100 can be directly connected to the outside for exhaust. In another feasible embodiment, if there is no need to exhaust bubbles or the influence of bubbles can be ignored, the first connecting channel 101 may not be set in the simulation cavity 100.

[0031] At the same time, the fourth connecting channel 104 is provided, and a soft film 4 is provided on the fourth connecting channel 104 to simulate the elasticity of the vitreous surrounding tissue in the anterior chamber or vitrectomy surgery to increase the authenticity of the entire simulation experiment. The specific elasticity of the soft film 4 can have a variety of different specifications to adapt to different scene simulations, which is not limited here. The fourth connecting channel 104 is preferably provided above the simulation cavity 100, and then the soft film 4 is also provided above the simulation cavity 100. In other feasible implementations, the fourth connecting channel 104 and the soft film 4 can be provided at any orientation of the simulation cavity 100. The soft film 4 can be fixedly connected to the simulation block 1 in any suitable manner to seal the fourth connecting channel 104, such as by gluing.

[0032] In order to better fit the actual situation of the eye, the inner contour of the simulated cavity 100 is a tube with a nearly circular cross section. The actual internal volume of the simulated cavity 100 can be specifically set according to the simulated part.

[0033] For ease of operation, Figure 2 and Figure 3 As shown, the first connecting channel 101, the second connecting channel 102, the third connecting channel 103, and the fourth connecting channel 104 are respectively connected to the front, back, left, and right end faces of the simulation cavity 100. In other feasible embodiments, the first connecting channel 101, the second connecting channel 102, the third connecting channel 103, and the fourth connecting channel 104 can be adjusted in position according to actual needs.

[0034] Preferably, the second connection channel 102 is coaxially arranged with the simulation cavity 100, and the inner contour of the second connection channel 102 matches the front end of the handle 2. The handle 2 is supported by the bracket 7 and is coaxial with the second connection channel 102, and the front end of the handle 2 is limited in the second connection channel 102, and the front end of the handle 2 has a through hole 201. After the handle 2 is inserted, the inner contour of the second connection channel 102 can form a stable limit for the handle 2, limit the distance of the handle 2 to be inserted, so that the through hole 201 is located at an appropriate position in the simulation cavity 100. The setting of the bracket 7 can keep the moving position of the handle 2 stable, and the bracket 7 is provided with a plurality of mounting holes to facilitate connection with other devices for combined use, to save space or to facilitate installation on other devices. Similarly, the simulation block 1 is also provided with a plurality of mounting holes to facilitate connection.

[0035] Further, the plug assembly includes a plug 3 and a cylinder 301 for driving the plug to move, the bottom of the plug 3 is fixedly connected to the cylinder head of the cylinder 301, the extension direction of the third connecting channel 103 is perpendicular to the extension direction of the second connecting channel 102, and the plug 3 moves in the third connecting channel 103 under the drive of the cylinder 301 to block or release the through hole 201. The plug 3 is set in this device to simulate the blockage, and the plug 3 is driven by the cylinder 301 to move, so as to ensure that the blocking force and stroke of the plug 3 are consistent each time, so as to make the simulated blockage consistent as much as possible, to eliminate errors and improve the accuracy of the experiment. The third connecting channel 103 is preferably arranged perpendicular to the second connecting channel 102 to facilitate the plug 3 to block or release the through hole 201 by moving. In other feasible embodiments, the plug 3 can also be driven by other feasible power sources, such as a rotary motor or a linear motor.

[0036] like Figure 2 and Figure 3 As shown, a spherical limit block 302 is fixed on the rod of the plug 3, and the third connecting channel 103 includes a first section 1031 and a second section 1032 that are connected to each other. The first section 1031 is connected to the simulation cavity 100, and its inner diameter is smaller than that of the second section 1032. The inner diameter of the second section 1032 gradually increases from the inside to the outside, and its inner diameter matches the limit block 302, so that the limit block 302 is embedded in the second section 1032 to limit the extension distance of the head of the plug 3. The setting of the limit block 302 can cooperate with the third connecting channel 103 to limit the limit position of the plug 3. The principle is consistent with the matching of the inner contour of the second connecting channel 102 with the front end of the handle 2, that is, an effective limit is formed between the second connecting channel 103 and the limit block 302, so that after the handle 2 and the plug 3 are extended into the simulated cavity 100 to the limit position, the plug 3 can just face the through hole 201 to block the through hole 201, thereby completing the scene simulation of the blockage experiment.

[0037] The device can be adapted to multiple surge test settings by using different handles 2. Figure 1 and Figure 2 The figure shows the first embodiment of the present invention. In the first embodiment, the through hole 201 is located at the front end of the handle 2, and the head of the plug 3 moves up and down relative to the front end of the handle 2. When the plug 3 is extended to its limit position, the plug 3 blocks the through hole 201; the plug 3 withdraws from the third connecting channel 103 to release the through hole 201.

[0038] like Figure 3 and Figure 4The second embodiment of the present invention is shown in FIG. The difference between the second embodiment and the first embodiment is that the position of the through hole 201 is inconsistent. In the second embodiment, the handle 2 is a vitreous cutting head, the through hole 201 is located at one side of the end of the handle 2, and the head of the plug 3 moves up and down relative to one side of the handle 2 to block or release the through hole 201.

[0039] Furthermore, in order to stabilize the surge in the simulated vitrectomy surgery, a rubber sleeve 303 is provided on the head of the plug 3 to increase the area of ​​the plug 3 to ensure that the plug 3 can block the through hole 201. A limiting plane 105 extending in the same direction as the simulation cavity 100 is provided in the simulation cavity 100, and the limiting plane 105 is flush with the edge of the second connecting channel 102 to support the probe 200 extending from the handle 2 to prevent the plug 3 from causing the probe 200 to deviate or bend.

[0040] Furthermore, the third connecting channel 103 also includes a third section 1033, the inner diameter of the third section 1033 is larger than the maximum inner diameter of the second section 1032, and a step surface is formed between the third section 1033 and the second section 1032, and a sealing ring 5 is provided on the step surface to seal the connection between the second section 1032 and the limit block 302.

[0041] Specifically, a sealing member 6 is fixedly connected to the side of the simulation block 1, and the sealing member 6 has a protrusion 601, and the protrusion 601 is embedded in the third section 1033. The port of the protrusion 601 confines the sealing ring 5 in the third section 1033, and makes the inner wall of the sealing ring 5 abut against the outer wall of the limit block 302 to ensure the stability of the position of the sealing ring 5 and ensure that the sealing ring 5 seals the third connecting channel 103.

[0042] In addition, in the second embodiment, the simulated cavity 100 can also be connected to the fifth connecting channel for connecting the perfusion needle to simulate suction and perfusion. In another feasible embodiment, the first connecting channel 101 can be used to connect the simulated cavity 100 and the vitrectomy perfusion needle.

[0043] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0044] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. Phacoemulsification surge simulator, characterized by: The invention comprises a simulation block (1), a handle (2) and a plug assembly, wherein the simulation block (1) is provided with a simulation cavity (100) for experiment, wherein the simulation cavity (100) is connected with at least a first connection channel (101) for exhaust, a second connection channel (102) for connecting the handle (2), a third connection channel (103) for connecting the plug assembly and a fourth connection channel (104) sealed by a soft film (4), wherein the first connection channel (101) is connected to an exhaust outlet, the first connection channel (101) and the simulation cavity (100) extend in the same direction, and the top of the inner tube wall of the first connection channel (101) is flush with the top of the inner wall of the simulation cavity (100).

2. The phacoemulsification surge simulation device according to claim 1, characterized in that: The inner contour of the simulated cavity (100) is a tube with a nearly circular cross section.

3. The phacoemulsification surge simulation device according to claim 2, characterized in that: The second connecting channel (102) is coaxially arranged with the simulation cavity (100), and the inner contour of the second connecting channel (102) matches the front end of the handle (2); the handle (2) is supported by a bracket (7) and is coaxial with the second connecting channel (102), and the front end of the handle (2) is confined within the second connecting channel (102); the front end of the handle (2) has a through hole (201).

4. The phacoemulsification surge simulation device according to claim 3, characterized in that: The plug assembly comprises a plug (3) and a cylinder (301) for driving the plug to move; the bottom of the plug (3) is fixedly connected to the cylinder head of the cylinder (301); the extension direction of the third connecting channel (103) is perpendicular to the extension direction of the second connecting channel (102); and the plug (3) moves in the third connecting channel (103) under the drive of the cylinder (301) to block or release the through hole (201).

5. The phacoemulsification surge simulation device according to claim 4, characterized in that: A spherical stopper (302) is fixedly arranged on the rod portion of the plug (3); the third connecting channel (103) comprises a first section (1031) and a second section (1032) which are connected to each other; the first section (1031) is connected to the simulation cavity (100) and has an inner diameter smaller than that of the second section (1032); the inner diameter of the second section (1032) gradually increases from the inside to the outside, and its inner diameter matches that of the stopper (302), so that the stopper (302) is embedded in the second section (1032) to limit the extension distance of the head of the plug (3).

6. The phacoemulsification surge simulation device according to claim 5, characterized in that: The through hole (201) is located at the front end of the handle (2), and the head of the plug (3) moves up and down relative to the front end of the handle (2) to block or release the through hole (201).

7. The phacoemulsification surge simulation device according to claim 5, characterized in that: The through hole (201) is located at one side of the end of the handle (2), and the head of the plug (3) moves up and down relative to one side of the handle (2) to block or release the through hole (201).

8. The phacoemulsification surge simulation device according to claim 7, characterized in that: A rubber sleeve (303) is sleeved on the head of the plug (3), and a limiting plane (105) extending in the same direction as the simulated cavity (100) is provided in the simulated cavity (100), and the limiting plane (105) is flush with the edge of the second connecting channel (102) to support the probe (200) extending out of the handle (2).

9. The phacoemulsification surge simulation device according to claim 5, characterized in that: The third connecting channel (103) further comprises a third section (1033), the inner diameter of the third section (1033) being greater than the maximum inner diameter of the second section (1032), and a step surface is formed between the third section (1033) and the second section (1032), and a sealing ring (5) is provided on the step surface to seal the connection between the second section (1032) and the limit block (302).

10. The phacoemulsification surge simulation device according to claim 9, characterized in that: A sealing member (6) is fixedly connected to the side of the simulation block (1), and the sealing member (6) has a convex portion (601). The convex portion (601) is embedded in the third section (1033). The port of the convex portion (601) confines the sealing ring (5) in the third section (1033) and enables the inner wall of the sealing ring (5) to abut against the outer wall of the limit block (302).

Images