Surgical kit

Abstract

The present invention relates to a surgical box, which includes a box body, a peristaltic joint part and a vacuum joint part arranged on the box body and respectively used for connecting a peristaltic pump and a vacuum pump, and a switching mechanism arranged in the box body for adjusting the surgical box to be in a first working state and a second working state. In this embodiment, the surgical box can be freely switched between the first working state and the second working state through the switching mechanism, so that a peristaltic pump or a vacuum pump can be selected as the power source according to needs; the surgical box can suck and discharge waste liquid at the same time, and there is no need to additionally set a peristaltic pump for discharging waste liquid, saving the cost of surgical equipment and the space of the surgical box; in this embodiment, a negative pressure can be formed in the suction chamber in the box body when sucking waste liquid, so there is no need to set a large volume for the suction chamber, and the waste liquid is finally directly discharged outwards through the discharge flow channel into an external waste liquid recovery bag and does not need to be stored in the surgical box, thereby reducing the design volume of the surgical box as a whole.

Description

Technical Field

[0001] The present invention relates to the field of medical device design, and particularly to a surgical cassette. Background Art

[0002] An ultrasonic phacoemulsification system generally needs to use a surgical cassette as an interface between the surgical device and the patient. This is because ultrasonic phacoemulsification surgery requires a sterile surgical environment. The tubing that directly contacts the surgical fluid, the regulating valve, and the sensor contact assembly for measurement can be placed in a replaceable / disposable surgical cassette. A new surgical cassette can be replaced after each patient surgery to ensure the sterility of the surgery. Secondly, the surgical cassette is conducive to the effective management and control of the surgical device and the perfusion fluid entering the eye and the aspiration fluid flowing out of the eye. When the surgical cassette is embedded in the surgical device, the control and measurement components on the device, such as the pump head, sensor, actuator, and the corresponding control parts on the surgical cassette are engaged, and then the on / off, pressure, and flow rate of the liquid tubing in the surgical cassette can be effectively controlled, achieving the purpose of ensuring the safety and precise liquid flow control of ultrasonic phacoemulsification surgery.

[0003] In ultrasonic phacoemulsification surgery, it is very important to precisely control the flow rate of the perfusion fluid flowing into the eye and the flow rate of the fluid aspirated from the eye. For example, when the handle needle ultrasonically vibrates to shatter the diseased lens and aspirates the fragments, a certain amount of perfusion fluid needs to enter the eye to compensate for the outflowing fluid. If the total volume of the fluid in the eye is too low during the surgery, the eye will collapse and cause damage; similarly, if the total volume of the fluid in the eye is too large, the excessive pressure in the eye will also cause damage to the eye.

[0004] There are mainly two liquid aspiration and transmission methods for existing ultrasonic phacoemulsification devices: (1) Using a peristaltic pump for aspiration. During the rotation of the peristaltic pump, the rotor on the pump head continuously squeezes the tubing for transporting the liquid. When the rotor squeezes the tubing, a certain amount of liquid is clamped in the narrow space formed by the adjacent pair of rotors and the squeezed tubing, and is continuously transported from the inlet of the peristaltic pump to the outlet. Since the volume of this narrow space is fixed, the peristaltic pump can accurately control the flow rate aspirated from the eye; (2) Using a Venturi vacuum pump for aspiration. The vacuum pump requires a negative pressure chamber. During the operation of the negative pressure source, the air in the negative pressure chamber is continuously evacuated to form a negative pressure, and the pressure difference enables the liquid to flow. Therefore, the vacuum pump can accurately control the pressure difference, that is, the magnitude of the negative pressure. Clinical experience has confirmed that the aspiration flow rate and the negative pressure are two important parameters for doctors to perform liquid flow operations during surgery. The aspiration flow rate describes how quickly the lens fragments are adsorbed onto the needle, and the negative pressure describes the "gripping force" that pulls the fragments at the tip of the needle into the inner cavity of the needle.

[0005] In order to enable phacoemulsification equipment to have the functions of precisely adjusting the aspiration flow rate and negative pressure, many manufacturers have introduced a dual-pump system, which can switch between a peristaltic pump and a Venturi pump. However, the structure is complex and the switching of the dual pumps is not convenient. Moreover, in order to adapt to the dual-pump system, some surgical cassettes have introduced a second peristaltic pump in addition to the peristaltic pump and the Venturi pump to drain the waste liquid in the vacuum chamber of the surgical cassette at any time. The additional pumps introduced will not only increase the cost of the surgical equipment, but also cause waste of the space of the surgical cassette due to the need to cooperate with the additional pump heads. Some other surgical cassettes, although equipped with an ordinary dual-pump system, use the vacuum chamber instead of the waste liquid bag, resulting in an overly large vacuum chamber, and then an overly large overall volume of the surgical cassette, increasing the cost of manufacturing the surgical cassette and also posing a risk of waste liquid accumulation, and the surgical equipment needs to pump away the waste liquid in the case of accumulation. Summary of the Invention

[0006] The purpose of the present application is to provide a surgical cassette to solve one or more of the technical problems of inconvenient switching of the power source of the existing surgical cassette, overly large volume, and increased equipment cost for the waste liquid drainage function.

[0007] A surgical cassette, comprising:

[0008] A cassette body, within which there are an aspiration chamber, a storage chamber, and a discharge flow channel. The aspiration chamber communicates with the outside of the cassette body through an aspiration inlet, and the discharge flow channel communicates with the outside of the cassette body through a discharge outlet;

[0009] A peristaltic connection part, provided on the cassette body, for cooperatively installing a peristaltic pump. Both ends of the peristaltic connection part extend into the cassette body respectively, and one end of the peristaltic connection part is connected to the storage chamber;

[0010] A vacuum connection part, provided on the cassette body and communicating with the storage chamber, for cooperatively installing a vacuum pump;

[0011] A switching mechanism, provided within the cassette body, within which a first communication flow channel, a second communication flow channel, and a third communication flow channel are formed. The switching mechanism can act to enable the surgical cassette to be in a first working state and a second working state respectively;

[0012] When the surgical cassette is in the first working state, both ends of the first communication flow channel communicate with the storage chamber and the discharge flow channel respectively, and both ends of the second communication flow channel communicate with the aspiration chamber and the other end of the peristaltic connection part respectively;

[0013] When the surgical cassette is in the second working state, both ends of the first communication flow channel communicate with the aspiration chamber and the storage chamber respectively, and both ends of the third communication flow channel communicate with the other end of the peristaltic connection part and the discharge flow channel respectively.

[0014] In one embodiment, the box body includes a top cover and a base that are hermetically connected, and the suction chamber and the storage chamber are surrounded by protrusions provided at corresponding positions on one side surface of the top cover and the base facing each other.

[0015] In one embodiment, a storage cavity is formed on the outer surface of the box body near the discharge port, and the storage cavity is used for storing a waste liquid bag communicated with the discharge port.

[0016] In one embodiment, a detection interface is further provided on the box body, and the detection interface is used to connect with a sensor for detecting the pressure or flow rate of the liquid in the suction chamber.

[0017] In one embodiment, the switching mechanism includes:

[0018] A switching chamber, and through holes are provided on the wall surface of the switching chamber and are respectively connected to the suction chamber, the storage chamber, the discharge channel, and the other end of the peristaltic joint portion.

[0019] A switching valve body is disposed in the switching chamber, and the first communication channel, the second communication channel, and the third communication channel are formed in the switching valve body. The switching valve body can rotate around an axis so that each communication channel is connected to a different through hole, thereby enabling the surgical box to be in a corresponding working state.

[0020] In one embodiment, the first communication channel and the second communication channel are arranged at intervals along the axial direction of the switching valve body, and the first communication channel and the second communication channel are respectively perpendicular to the axial direction of the switching valve body; the openings at both ends of the third communication channel are respectively in the same plane as the first communication channel and the second communication channel.

[0021] In one embodiment, the switching mechanism further includes a first sealing sleeve, the first sealing sleeve is disposed between the switching valve body and the switching chamber, and through holes are provided on the surface of the first sealing sleeve opposite to the outlet positions of the respective communication channels.

[0022] In one embodiment, the switching valve body is installed through the box body along the length direction, and a docking groove for connecting a driving component is provided at the end of the switching valve body exposed from the box body.

[0023] In one embodiment, the peristaltic joint portion includes:

[0024] A joint side wall, which is disposed at the edge of the box body;

[0025] The installation groove is arranged along the joint side wall, and the notch of the installation groove faces away from the direction of the box body, and both ends of the installation groove extend into the box body respectively;

[0026] The first interface is arranged at one end of the installation groove and is communicated with the switching mechanism;

[0027] The second interface is arranged at the other end of the installation groove and is connected with the storage chamber.

[0028] In one embodiment, a double-layer pipeline is further arranged in the box body. One end of the double-layer pipeline is respectively connected to the discharge flow channel and the peristaltic joint part, and the other end of the double-layer pipeline faces the switching mechanism.

[0029] In one embodiment, a perfusion flow channel is further arranged in the box body. The perfusion inlet and the perfusion outlet at both ends of the perfusion flow channel are respectively exposed from the box body, and a control valve for controlling the on-off of the perfusion flow channel is arranged on the perfusion flow channel.

[0030] In one embodiment, the control valve includes:

[0031] A control chamber, and perfusion through holes respectively connected to the perfusion inlet and the perfusion outlet are arranged on the wall surface of the control chamber;

[0032] A control valve body is placed in the control chamber. A communication flow channel is formed in the control valve body, and the control valve body can rotate around an axis to connect the communication flow channel with the perfusion through hole so as to conduct the perfusion flow channel.

[0033] In one embodiment, the control valve further includes a valve sealing sleeve, which is arranged between the control valve body and the control chamber, and a through hole is arranged on the surface of the valve sealing sleeve opposite to the outlet position of the communication flow channel.

[0034] The above surgical box has at least the following beneficial technical effects:

[0035] (1) In this embodiment, the switching mechanism is used to realize the rapid switching between the peristaltic pump and the vacuum pump as the power source, and has the functions of accurately adjusting the suction flow and negative pressure, and can meet the diverse operation requirements of doctors;

[0036] (2) The peristaltic pump or the vacuum pump can be used to simultaneously suck and discharge waste liquid, and there is no need to additionally set a peristaltic pump for discharging waste liquid, which saves the cost of surgical equipment and the space of the surgical box;

[0037] (3) In this embodiment, it is only necessary to form a negative pressure in the suction chamber when sucking the waste liquid. Therefore, the suction chamber does not need to be set with a large volume. The function of the storage chamber is mainly to temporarily store the waste liquid. It only forms a vacuum state with the suction chamber when using a vacuum pump as the power. The waste liquid is finally directly discharged outwards through the discharge channel into an external waste liquid recovery bag and does not need to be stored in the surgical box, thereby reducing the design volume of the surgical box and the manufacturing cost. Since the waste liquid can be discharged into an external waste liquid recovery bag, there is no risk of waste liquid accumulation and overflow from the surgical box, which can ensure the smooth progress of the surgical process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a front schematic view of a surgical box in an embodiment of the present invention;

[0039] Figure 2 is Figure 1 a back schematic view of the surgical box;

[0040] Figure 3 is a schematic view of the disassembled surgical box in an embodiment of the present invention;

[0041] Figure 4 is Figure 3 an inner side schematic view of the top cover in the surgical box;

[0042] Figure 5 is a partial cross-sectional view of the top cover and the base of the present invention after being assembled;

[0043] Figure 6a is Figure 3 a partial enlarged view in;

[0044] Figure 6b is Figure 6a a disassembled schematic view of;

[0045] Figure 7 is a switching valve body and its cross-sectional view in an embodiment of the present invention;

[0046] Figure 8 is a schematic view of the flow mode of the liquid in the surgical box when using a peristaltic pump to provide suction force during phacoemulsification surgery in an embodiment of the present invention;

[0047] Figure 9 is Figure 8 a schematic view of the level where the first communication channel in the switching valve body used in;

[0048] Figure 10 is Figure 8 a schematic view of the level where the second communication channel in the switching valve body used in;

[0049] Figure 11Schematic diagram of liquid flow when using a peristaltic pump to provide suction force;

[0050] Figure 12 Schematic diagram of the flow mode of the liquid in the surgical cassette when using a vacuum pump to provide suction force during phacoemulsification surgery according to an embodiment of the present invention;

[0051] Figure 13 For Figure 12 Schematic diagram of the level where the first communication flow channel in the switching valve body used in

[0052] Figure 14 For Figure 12 Schematic diagram of the level where the second communication flow channel in the switching valve body used in

[0053] Figure 15 Schematic diagram of liquid flow when using a vacuum pump to provide suction force.

[0054] In the figure:

[0055] 100, surgical cassette; 1025, peristaltic joint; 1024, vacuum joint; 101, top cover; 102, base; 102r, suction chamber; 102d, storage chamber; 102n, discharge channel; 1023, suction inlet; 1028, discharge port; 102g, through hole; 102c, hole-containing protrusion; 102m, first mesh protrusion; 101f, second mesh protrusion; 102e, first cavity; 101a, second cavity; 101b: protrusion on the top cover; 102f, protrusion on the base; 1021, perfusion inlet; 1022, perfusion outlet; 400, phacoemulsification handle; 102a, control chamber; 103, control valve body; 1011, second mounting hole; 106, valve seal sleeve; 102h, pressure relief chamber; 102b, adjustment chamber; 104, pressure relief valve body; 1012, third mounting hole; 107, third seal sleeve; 1029, storage cavity; 1026, detection interface; 200, peristaltic pump; 1025d, joint side wall; 1025c, mounting groove; 1025a, first interface; 1025b, second interface; 202, roller; 201, flexible tube; 201a, 201b: both sides interfaces of the flexible tube; 300, vacuum pump; 102p, double-layer pipeline; 105a, first communication flow channel; 105b, second communication flow channel; 105c, third communication flow channel; 102c, switching chamber; 105, switching valve body; 108, first seal sleeve; 105d, docking groove; 1013, first mounting hole. Detailed implementation mode

[0056] The present invention will be further described below in conjunction with the accompanying drawings.

[0057] To facilitate the understanding of the present invention, various embodiments defined by the claims of the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings, which include various specific details to assist in this understanding, but these details should be regarded as merely exemplary. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Accordingly, those of ordinary skill in the art will recognize that various changes and improvements can be made to the embodiments described herein without departing from the scope of the present invention as defined by the appended claims. In addition, for the sake of clarity and conciseness, the description of well-known functions and configurations may be omitted.

[0058] It is obvious to those skilled in the art that the following description of the various embodiments of the present invention is for the purpose of explanation only and is not intended to limit the present invention as defined by the appended claims.

[0059] Throughout the description and claims of this application document, the words "comprising" and "including" and variations of the words, such as "comprising of" and "including", mean "including but not limited to", and are not intended to (and will not) exclude other components, wholes, or steps. Features, wholes, or characteristics described in connection with specific aspects, embodiments, or examples of the present invention will be understood to be applicable to any other aspect, embodiment, or example described herein, unless incompatible therewith.

[0060] It should be understood that the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. The expressions "comprising" and / or "may comprise" used in the present invention are intended to indicate the existence of corresponding functions, operations, or elements, and are not intended to limit the existence of one or more functions, operations, and / or elements. In addition, in the present invention, the terms "comprising" and / or "having" are intended to indicate the existence of the characteristics, quantities, operations, elements, and components disclosed in the application document, or combinations thereof. Therefore, the terms "comprising" and / or "having" should be understood to allow for the additional possibility of the existence of one or more other characteristics, quantities, operations, elements, and components, or combinations thereof.

[0061] In the present invention, the expression "or" includes any or all combinations of the recited words. For example, "A or B" may include A or B, or may include both A and B.

[0062] It should be understood that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element; when an element is considered to be "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or there may be an intermediate element present at the same time.

[0063] The terms "upper", "lower", "left", "right", etc. mentioned in the text are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0064] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. It should also be understood that terms (such as those defined in a common dictionary) should be interpreted as having a meaning consistent with the relevant field and the context of this specification, and should not be interpreted in an idealized or overly formal sense unless explicitly defined in this document. The term "and / or" used in this document includes any and all combinations of one or more of the related listed items.

[0065] As Figure 1 and Figure 2 As shown, in an embodiment of the present invention, a surgical cassette 100 is provided, which includes a cassette body, a peristaltic coupling portion 1025, a vacuum coupling portion 1024, and a switching mechanism. The surgical cassette 100 is used as an interface between a surgical device and a patient to help the surgical device effectively manage the perfusion fluid entering the patient's eye and the aspiration fluid flowing out of the eye.

[0066] Please refer to Figures 1 to 4 , specifically, the cassette body includes a top cover 101 and a base 102 that are hermetically connected. The sealing methods between the top cover 101 and the base 102 include but are not limited to silicone connection and seal ring connection. The cassette body has an aspiration chamber 102r, a storage chamber 102d, and a discharge channel 102n (as Figure 9 shown), the aspiration chamber 102r is communicated with the outside of the cassette body through an aspiration inlet 1023, and the discharge channel 102n is communicated with the outside of the cassette body through a discharge port 1028.

[0067] Specifically in this embodiment, the aspiration chamber 102r and the storage chamber 102d are surrounded by the butting of protrusions provided at corresponding positions on the opposite side surfaces of the top cover 101 and the base 102.

[0068] For example, the through hole 102g on the base 102 is connected to the corresponding hole-containing protrusion 101c on the top cover 101 of the surgical cassette 100 during assembly for passing through bolts, and the top cover 101 and the base 102 are connected and locked by bolts. Refer to Figures 3 - 5After the base 102 and the top cover 101 are assembled, the first mesh protrusion 102m in the base 102 contacts the second mesh protrusion 101f in the top cover 101 in a matching manner, so that the first cavity 102e formed by the first mesh protrusion 102m and the second cavity 101a formed by the second mesh protrusion 101f together form an annular cavity. The annular cavity can be filled with sealant, thereby isolating the space inside the surgical box 100 from the space outside the surgical box 100, and realizing the sealed connection between the top cover 101 and the base 102.

[0069] In this embodiment, the suction chamber 102r and the storage chamber 102d are formed by the docking of the protrusion 101b on the top cover and the protrusion 102f on the base. In this case, the suction chamber 102r, the storage chamber 102d, and the discharge channel 102n can be directly integrally formed with the box body, which is convenient for manufacturing and does not require separate design, reducing the cost.

[0070] Of course, in some other embodiments, the suction chamber 102r, the storage chamber 102d, and the discharge channel 102n may be assembled components independent of the box body, and no limitation is made here. Please continue to refer to Figures 1 to 3 There is also a perfusion channel in the box body. The perfusion inlet 1021 and the perfusion outlet 1022 at both ends of the perfusion channel are respectively exposed outside the box body, and a control valve for controlling the on-off of the perfusion channel is provided on the perfusion channel. In this embodiment, the perfusion channel is arranged on the base 102, the perfusion inlet 1021 extends out of the top surface of the base 102, and the perfusion outlet 1022 extends out of the side surface of the base 102.

[0071] Specifically, the perfusion inlet 1021 is used to connect to an external perfusion pipeline. After the control valve is opened, the perfusion liquid provided by the perfusion bottle enters the surgical box 100, and then during the operation, it is connected to the phacoemulsification handle 400 through the perfusion pipeline via the perfusion outlet 1022 and enters the patient's eye.

[0072] Specifically in this embodiment, the control valve includes a control chamber 102a and a control valve body 103. The wall surface of the control chamber 102a is provided with perfusion through holes respectively connected to the perfusion inlet 1021 and the perfusion outlet 1022. The control valve body 103 is arranged in the control chamber 102a, and a communication channel is formed in the control valve body 103. The control valve body can rotate around the axis to connect the communication channel with the perfusion through holes, thereby conducting the perfusion channel.

[0073] Specifically, the control valve body 103 is installed through the control chamber 102a on the base 102 and embedded in the second installation hole 1011 on the top cover 101, so as to place the control valve body 103 in the control chamber 102a.

[0074] The control valve further includes a valve seal sleeve 106 which is arranged between the control valve body 103 and the control chamber 102a, and through holes are provided on the surface of the valve seal sleeve 106 opposite to the outlet position of the communication flow channel. Specifically, the valve seal sleeve 106 can enhance the tightness of the connection between the control valve body 103 and the control chamber 102a, and prevent the waste liquid inside the box body from leaking out.

[0075] Furthermore, a pressure relief chamber 102h and a pressure relief valve located between the pressure relief chamber 102h and the suction chamber 102r are also provided inside the box body, and the pressure relief valve is used to control the communication between the pressure relief chamber 102h and the suction chamber 102r.

[0076] Specifically, when the negative pressure in the suction chamber 102r is too large, it is easy to damage the patient's eyeball. Therefore, when the negative pressure is relatively large, the pressure relief valve can be opened to make the pressure relief chamber 102h communicate with the suction chamber 102r, and the physiological saline or other media in the pressure relief chamber 102h can enter the suction chamber 102r to balance the negative pressure.

[0077] The pressure relief valve includes an adjustment chamber 102b and a pressure relief valve body 104. Pressure relief through holes respectively connected to the pressure relief chamber 102h and the suction chamber 102r are provided on the wall surface of the adjustment chamber 102b. The pressure relief valve body 104 is arranged inside the adjustment chamber 102b, and a pressure relief flow channel is formed inside the pressure relief valve body 104. The pressure relief valve body 104 can rotate around the axis to connect the pressure relief flow channel with the pressure relief through holes, thereby communicating the pressure relief chamber 102h and the suction chamber 102r.

[0078] Specifically, the pressure relief valve body 104 is installed through the adjustment chamber 102b on the base and embedded in the third mounting hole 1012 on the top cover 101, thereby placing the pressure relief valve body 104 inside the adjustment chamber 102b.

[0079] The pressure relief valve further includes a third seal sleeve 107 which is arranged between the pressure relief valve body 104 and the adjustment chamber 102b, and through holes are provided on the surface of the third seal sleeve 107 opposite to the outlet position of the pressure relief flow channel. Specifically, the third seal sleeve 107 can enhance the tightness of the connection between the pressure relief valve body 104 and the adjustment chamber 102b, and prevent the waste liquid inside the box body from leaking out.

[0080] Please refer to Figure 1 and Figure 3, a storage cavity 1029 is formed on the outer surface of the box body near the discharge port 1028. Specifically, the waste liquid bag can be pre-placed in the storage cavity 1029 and connected to the discharge port 1028. When it is necessary to collect waste liquid, the waste liquid bag is extended from the storage cavity 1029, and the waste liquid can flow into the waste liquid bag. Waste liquid bags of different specifications can be pre-set according to surgical requirements, which is conducive to the timely discharge and collection of waste liquid and avoids excessive accumulation from affecting the normal use of this embodiment.

[0081] For example, the storage cavity 1029 is formed on the base 102, and an open mouth corresponding to the storage cavity 1029 is provided on the top cover 101, and the open mouth exposes the storage cavity 1029.

[0082] The suction inlet 1023 is connected to the phacoemulsification surgical handpiece 400 used by the doctor. The aspirated chylous substance and aspirate enter the surgical box 100 through the suction pipeline via the suction inlet 1023. The aspirated liquid will flow through the discharge port 1028 into a foldable waste liquid bag connected to the surgical box 100 (the waste liquid bag is not shown in the figure). Before the operation, the waste liquid bag will be folded and stored in the storage cavity 1029 and connected to the discharge port 1028. During the operation, the waste liquid bag will be extended from the storage cavity 1029 to facilitate the accommodation of the aspirate during the operation.

[0083] Please refer to Figure 2 and Figure 3 , a detection interface 1026 is further provided on the box body. The detection interface 1026 is used to connect to a sensor, and the sensor is used to detect the pressure or flow rate of the liquid in the suction chamber 102r. Specifically, when the surgical box 100 of this embodiment is placed on the surgical device, a sensor for non-contact measurement of hydraulic pressure or liquid flow rate can be connected to the detection interface 1026, so that the doctor can monitor the pressure or flow rate of the liquid in the suction chamber 102r in real time during the operation.

[0084] Please refer to Figure 6a and Figure 6b , the peristaltic joint part 1025 is provided on the box body for cooperatively installing the peristaltic pump 200, and both ends of the peristaltic joint part 1025 extend into the box body respectively, and one end of the peristaltic joint part 1025 is connected to the storage chamber 102d. Specifically, the peristaltic joint part 1025 is provided on the base 102.

[0085] Specifically, the peristaltic joint portion 1025 includes a joint side wall 1025d, a mounting groove 1025c, a first interface 1025a, and a second interface 1025b. The joint side wall 1025d is provided at the edge of the box body. The mounting groove 1025c is arranged along the joint side wall 1025d, and the notch of the mounting groove 1025c faces away from the box body. Both ends of the mounting groove 1025c extend into the box body respectively. The first interface 1025a is provided at one end of the mounting groove 1025c and is in communication with the switching mechanism. The second interface 1025b is provided at the other end of the mounting groove 1025c and is in communication with the storage chamber 102d.

[0086] Specifically, the first interface 1025a and the second interface 1025b have the same structure and are one or more tubular structures arranged side by side. The specific number of tubular structures is determined by the flow rate requirement of the peristaltic pump 200 during use. The number of mounting grooves 1025c is the same as the number of tubular structures of the first interface 1025a, and its function is to limit the displacement of the flexible tube 201 of the peristaltic pump system during operation.

[0087] Please refer to Figure 6a 、 6b Figures 10 and 11. The peristaltic pump 200 includes rollers 202 and a flexible tube 201. The flexible tube 201 is one or more semi-circular ring-shaped pipes arranged side by side. The specific number of pipes is determined by the flow rate requirement of the peristaltic pump system during use, and the number of pipes is the same as the number of mounting grooves 1025c. The pipes are isolated from each other and not in communication. During use, the two side interfaces 201a, 201b of the flexible tube 201 are respectively connected to the first interface 1025a and the second interface 1025b. The fixing method includes but is not limited to gluing, etc., to achieve the communication between the first interface 1025a and the second interface 1025b through the flexible tube 201. The working principle of the peristaltic pump is similar to that of a finger squeezing a fluid-filled hose. As the finger squeezes the hose and slides forward, the fluid inside the hose moves forward. In the peristaltic pump, only the roller replaces the finger. As the roller moves, a negative pressure is formed inside the flexible tube 201, and the liquid flows accordingly. The fluid is pumped by alternately squeezing and releasing the flexible tube 201.

[0088] When the surgical cassette 100 is embedded in the main unit of the phacoemulsification surgical device, the rollers of the peristaltic pump 200 on the main unit will fit against and press the flexible tube 201 through the positioning relationship. For the flexible tube 201, the inlet and outlet will change when the peristaltic pump 200 changes the rotation direction: when only using the peristaltic pump 200 for aspiration, the liquid flows into the peristaltic pump system through the first interface 1025a, is transmitted to the second interface 1025b after being pressed by the peristaltic pump against the flexible tube 201, and then flows into the storage chamber 102d in the base 102; when using the vacuum pump 300 for aspiration and the peristaltic pump 200 rotates in reverse to empty the storage chamber 102d, the liquid flows into the peristaltic pump system through the second interface 1025b, and the waste liquid in the storage chamber 102d is transmitted to the first interface 1025a after being pressed by the reverse rotation of the rollers against the flexible tube 201 and then enters the aspiration chamber 102r.

[0089] In this embodiment, the peristaltic joint 1025 can be used to install and rotate the peristaltic pump 200 bidirectionally, and the installation groove 1025c can limit the position offset of the peristaltic pump during operation due to the roller pressing, and also facilitates the installation and free disassembly of the flexible tube 201.

[0090] Further, the depth of the installation groove 1025c is less than the radius of the flexible tube 201. Specifically, when the flexible tube 201 is embedded in the installation groove 1025c, the depth of the installation groove 1025c is less than the radius of the flexible tube 201, so most of the structure of the flexible tube 201 still protrudes above the groove opening after being embedded (as Figure 6a shown), and the flexible tube 201 can be effectively pressed by the rollers to transmit fluid.

[0091] Further, the cassette body also has a double-layer pipeline 102p (as Figure 8 shown), one end of the double-layer pipeline 102p is respectively connected to the discharge channel 102n and the peristaltic joint 1025, and the other end of the double-layer pipeline 102p faces the switching mechanism. Specifically, the double-layer pipeline 102p can be used to integrally arrange the discharge channel 102n and the part of the peristaltic joint 1025 connected to the switching mechanism, which is beneficial to simplifying the design of the internal structure of the cassette body and facilitating the switching of the surgical cassette between different working states.

[0092] Please refer to again Figures 1 - 3 , the vacuum joint 1024 is provided on the cassette body and communicates with the storage chamber 102d for cooperating with the installation of the vacuum pump 300. Specifically, the vacuum joint 1024 includes a vacuum suction interface, which is connected to the vacuum pump 300 through the vacuum suction interface to create a negative pressure in the storage chamber 102d in the cassette body 100 to aspirate the aspiration fluid from the patient's eye.

[0093] Please refer to Figure 3 andFigure 7 A switching mechanism is provided inside the box body. A first communication flow channel 105a, a second communication flow channel 105b, and a third communication flow channel 105c are formed inside the switching mechanism. The switching mechanism can act to make the surgical box 100 be in a first working state and a second working state respectively. In this embodiment, the first state is that the peristaltic pump 200 is used as the power source, and the second working state is that the vacuum pump 300 is used as the power source.

[0094] When the surgical box 100 is in the first working state, both ends of the first communication flow channel 105a communicate with the storage chamber 102d and the discharge flow channel 102n respectively, and both ends of the second communication flow channel 105b communicate with the suction chamber 102r and the other end of the peristaltic joint 1025 respectively.

[0095] When the surgical box 100 is in the second working state, both ends of the first communication flow channel 105a communicate with the suction chamber 102r and the storage chamber 102d respectively, and both ends of the third communication flow channel 105c communicate with the other end of the peristaltic joint 1025 and the discharge flow channel 102n respectively.

[0096] Specifically, the switching mechanism includes a switching chamber 102c and a switching valve body 105. Through holes respectively connected to the suction chamber 102r, the storage chamber 102d, the discharge flow channel 102n, and the other end of the peristaltic joint 1025 are provided on the wall surface of the switching chamber 102c. The switching valve body 105 is arranged inside the switching chamber 102c. The first communication flow channel 105a, the second communication flow channel 105b, and the third communication flow channel 105c are formed on the switching valve body 105. The switching valve body 105 can rotate around the axis to connect each communication flow channel with different through holes so that the surgical box 100 is in the corresponding working state.

[0097] Reference Figure 7 The first communication flow channel 105a and the second communication flow channel 105b are arranged at intervals along the axial direction of the switching valve body 105, and the first communication flow channel 105a and the second communication flow channel 105b are respectively perpendicular to the axial direction of the switching valve body 105. The openings at both ends of the third communication flow channel 105c are in the same plane as the first communication flow channel 105a and the second communication flow channel 105b respectively.

[0098] Specifically, the first communication flow channel 105a and the second communication flow channel 105b are respectively located at different positions along the axial direction on the switching valve body 105. Correspondingly, each through hole on the switching chamber 102c that can be connected to different communication flow channels is also located at different positions along the axial direction of the switching chamber 102c, which is conducive to the reasonable design and layout of the suction chamber 102r, the storage chamber 102d, the discharge flow channel 102n, and the peristaltic joint 1025 connected by the communication flow channels inside the cartridge body.

[0099] Please refer to Figure 7 , further, the shape of the first communication flow channel 105a is a right-angled shape (see Figure 9 ), and the shape of the second communication flow channel 105b is a straight shape (see Figure 10 ). The first communication flow channel 105a and the second communication flow channel 105b can adopt corresponding shape designs according to the layout of each chamber and flow channel, thus facilitating the connection with each chamber and flow channel.

[0100] Refer to Figure 3 , the switching mechanism further includes a first sealing sleeve 108, which is arranged between the switching valve body 105 and the switching chamber 102c, and through holes are provided on the surface of the first sealing sleeve 108 opposite to the outlet positions of each communication flow channel. Specifically, the first sealing sleeve 108 can enhance the tightness of the connection between the switching valve body 105 and the switching chamber 102c, and prevent the waste liquid inside the cartridge body from leaking out.

[0101] Refer to Figure 2 and Figure 3 , the switching valve body 105 is installed through the cartridge body along the length direction, and the end of the switching valve body 105 exposed outside the cartridge body has a docking groove 105d for connecting a driving component.

[0102] Specifically, the switching valve body 105 is installed through the switching chamber 102c on the base and embedded in the first mounting hole 1013 on the cartridge cover. When the working state needs to be changed, the driving component is connected to the docking groove 105d to drive the switching valve body 105 to rotate, so that different communication flow channels are connected to the corresponding through holes on the switching chamber 102c. The setting of the docking groove 105d facilitates the flexible connection between the driving component and the switching valve body 105.

[0103] Please refer to FIGS. 8 - 11. When it is necessary to precisely adjust the suction flow rate using the peristaltic pump 200, operate the switching mechanism to make the surgical cassette 100 in the first working state. At this time, both ends of the first communication flow channel 105a are respectively communicated with the storage chamber 102d and the discharge flow channel 102n, and both ends of the second communication flow channel 105b are respectively communicated with the suction chamber 102r and the other end of the peristaltic joint 1025; start the peristaltic pump 200 to form a negative pressure in the suction chamber 102r. Under the action of the peristaltic pump 200, the waste liquid enters the suction chamber 102r from the suction inlet 1023. The waste liquid then enters the other end of the peristaltic joint 1025 through the second communication flow channel 105b, and flows into the storage chamber 102d through the peristaltic pump 200 on the peristaltic joint 1025; the waste liquid entering the storage chamber 102d will flow into the discharge flow channel 102n through the first communication flow channel 105a, and finally be discharged from the cassette body along the discharge flow channel 102n.

[0104] Please refer to FIGS. 12 - 14. When it is necessary to adjust the negative pressure using the vacuum pump 300, operate the switching mechanism to make the surgical cassette 100 in the second working state. At this time, both ends of the first communication flow channel 105a are respectively communicated with the suction chamber 102r and the storage chamber 102d, and both ends of the third communication flow channel 105c are respectively communicated with the other end of the peristaltic joint 1025 and the discharge flow channel 102n. Start the vacuum pump 300, and a negative pressure will be formed in the storage chamber 102d under the suction of the vacuum pump 300. Since the suction chamber 102r is communicated with the storage chamber 102d, a negative pressure is simultaneously formed in the suction chamber 102r. The waste liquid enters the suction chamber 102r from the suction inlet 1023, and then enters the storage chamber 102d through the first communication flow channel 105a.

[0105] While using the vacuum pump 300 for suction, the peristaltic pump 200 on the peristaltic joint 1025 rotates in the reverse direction simultaneously to pump the waste liquid out of the storage chamber 102d. The waste liquid flows from one end of the peristaltic joint 1025 to the other end, and flows to the discharge flow channel 102n through the third communication flow channel 105c and then flows out.

[0106] In this embodiment, the switching mechanism is used to realize the rapid switching between the peristaltic pump 200 and the vacuum pump 300 as the power sources, which has the functions of precisely adjusting the suction flow rate and the negative pressure, and can meet the diverse operation requirements of doctors;

[0107] Using the peristaltic pump 200 or the vacuum pump 300 can simultaneously suck and discharge the waste liquid, and there is no need to additionally set a peristaltic pump for discharging the waste liquid, which saves the cost of surgical equipment and the space of the surgical cassette 100;

[0108] In this embodiment, a negative pressure can be formed in the suction chamber 102r when sucking the waste liquid. Therefore, the suction chamber 102r does not need to be set with a large volume. The function of the storage chamber 102d is mainly to temporarily store the waste liquid, and it only forms a vacuum state together with the suction chamber 102r when using the vacuum pump 300 as the power. The waste liquid is finally directly discharged outwards through the discharge channel 102n into an external waste liquid recovery bag, and does not need to be stored in the surgical box 100, thereby reducing the design volume of the surgical box 100 and reducing the manufacturing cost. Since the waste liquid can be discharged into an external waste liquid recovery bag, there is no risk of waste liquid accumulation and overflow from the surgical box 100, which can ensure the smooth progress of the surgical procedure.

[0109] Next, the specific usage method of the surgical box during the surgical procedure will be described in combination with the above embodiments.

[0110] The box body is erected and the vacuum joint 1024 is located at the upper part of the box body. Figures 8 - 11 What is shown is the flow mode when the peristaltic pump 200 is used as the suction force in the phacoemulsification surgery of the surgical box 100. Figure 8 The black line segments in it are the flow lines of the waste liquid in the base 102, and the black dotted lines are the outflow lines of the waste liquid in the base 102. The first communication channel 105a and the second communication channel 105b are arranged in layers along the axial direction of the switching valve body 105, where Figure 9 What is shown is the situation of the layer where the first communication channel 105a of the switching valve body 105 is located in this working state. Figure 10 What is shown is the situation of the layer where the second communication channel 105b of the switching valve body 105 is located in this working state, where the second communication channel 105b connects the suction chamber 102r with the peristalsis joint 1025.

[0111] In this working state, the phacoemulsification handpiece 400 is connected to the suction inlet 1023. The waste liquid enters the suction chamber 102r from the suction inlet 1023 under the action of the extrusion pipeline of the peristaltic pump 200 on the peristalsis joint 1025. The waste liquid then enters the upper layer of the double-layer pipeline 102p through the second communication channel 105b in the switching valve body 105, then flows into the first interface 1025a and flows out through the second interface 1025b, and finally flows into the storage chamber 102d through the flow channel in the base 102. The initial waste liquid will accumulate in the storage chamber 102d. When the height of the waste liquid level is higher than the discharge channel 102n, since the storage chamber 102d communicates with the discharge channel 102n through the first communication channel 105a, the waste liquid will enter the lower layer of the double-layer pipeline 102p through the second communication channel 105b and finally enter the discharge channel 102n and be discharged. During this process, since the position of the vacuum joint 1024 is higher than the discharge channel 102n, the waste liquid will not immerse into the vacuum pump.

[0112] Figures 12 - 14Shown is the flow pattern of the surgical box 100 when using the vacuum pump 300 as the suction force during phacoemulsification surgery. Figure 12 The black line segments in Figure 12 are the inflow lines of the waste liquid in the base 102, the black dashed lines are the outflow lines of the waste liquid in the base 102, and the black dotted lines are the air extraction positions of the vacuum pump in the base 102. Figure 13 Shown is the situation of the layer where the first communication flow channel 105a of the switching valve body 105 in this working state is located. The first communication flow channel 105a conducts the suction chamber 102r and the storage chamber 102d, enabling the waste liquid to flow into the storage chamber 102d. At the same time, the third communication flow channel 105c is conducted with the lower layer of the double-layer pipeline 102p, and then with the discharge flow channel 102n. Figure 14 Shown is the situation of the layer where the second communication flow channel 105b of the switching valve body 105 in this working state is located. In this layer, it can be seen that the third communication flow channel 105c is conducted with the upper layer of the double-layer pipeline 102p. In this mode, the upper and lower layers of the double-layer pipeline 102p are in a conducting state with each other, and the upper layer of the double-layer pipeline 102p is then conducted with the peristaltic joint 1025. The upper layer of the double-layer pipeline 102p is connected to the peristaltic pump joint 1025, and the lower layer of the double-layer pipeline 102p is connected to the discharge flow channel 102n. Thus, in this working state, the third communication flow channel 105c connects the peristaltic joint 1025 and the discharge flow channel 102n.

[0113] In this working state, connect the vacuum joint 1024 to the vacuum pump 300 and perform suction during the operation. Since the storage chamber 102d is connected to the vacuum joint 1024, a negative pressure will be formed in the storage chamber 102d under the suction of the vacuum pump 300. Since the suction chamber 102r is connected to the storage chamber 102d, a negative pressure is also formed in the suction chamber 102r. After the phacoemulsification handle 400 is connected to the suction inlet 1023, the waste liquid enters the suction chamber 102r from the suction inlet 1023 due to the negative pressure, and then the waste liquid enters the storage chamber 102d through the first communication flow channel 105a.

[0114] While the vacuum pump 300 is operating, since the peristaltic pump 200 was used to discharge the waste liquid into the storage chamber 102d in the previous surgical step, too much waste liquid will cause the accumulation of waste liquid in the vacuum chamber, affecting the efficiency of the vacuum pump in pumping negative pressure. Therefore, while using the vacuum pump, the peristaltic pump 200 on the peristaltic joint 1025 can operate simultaneously to pump out the waste liquid from the storage chamber 102d. The specific flow pattern is as shown in Figure 15 . Figure 15As shown by the dashed line in the figure, first, the roller 202 rotates and squeezes the pipeline so that the waste liquid accumulated in the storage chamber 102d enters the second interface 1025b and flows out through the first interface 1025a; after flowing out from the first interface 1025a, the waste liquid will enter the discharge channel 102n through the third communication channel 105c and flow out from the discharge port 1028.

[0115] In the above description, although terms such as "first" and "second" may be used to describe various elements of the present invention, they are not intended to limit the corresponding elements. For example, the above terms are not intended to limit the order or importance of the corresponding elements. The above terms are used to distinguish one component from another.

[0116] The terms used in the description of the present invention in this article are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular form includes the plural form unless there is a significant difference in context or solution.

[0117] The above description is only an exemplary embodiment of the present invention and is not used to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

[0118] Those skilled in the art can understand that the technical features of the above embodiments can be omitted, added or combined in any way accordingly. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as the combinations of these technical features do not conflict, and the simple transformation methods that those skilled in the art can think of and the solutions for adaptive and functional structural transformations of the prior art should be considered to be within the scope described in this specification.

[0119] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be understood as limiting the scope of the invention patent. It should be noted that although the present invention has been shown and described with reference to various embodiments, for those of ordinary skill in the art, without departing from the concept of the present invention, several forms and various details can be deformed and improved, and without departing from the scope of the present invention defined by the appended claims, all of which belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. A surgical box, characterized in that, it includes: a box body, within which there are a suction chamber, a storage chamber and a discharge channel. The suction chamber communicates with the outside of the box body through a suction inlet, and the discharge channel communicates with the outside of the box body through a discharge outlet; a peristaltic joint part, provided on the box body, which is used to cooperate with the installation of a peristaltic pump, and both ends of the peristaltic joint part extend into the box body respectively, and one end of the peristaltic joint part is connected to the storage chamber; a vacuum joint part, provided on the box body and communicating with the storage chamber, which is used to cooperate with the installation of a vacuum pump; a switching mechanism, provided within the box body, within which a first communication channel, a second communication channel and a third communication channel are formed, and the switching mechanism can act to enable the surgical box to be in a first working state and a second working state respectively; when the surgical box is in the first working state, both ends of the first communication channel communicate with the storage chamber and the discharge channel respectively, and both ends of the second communication channel communicate with the suction chamber and the other end of the peristaltic joint part respectively; when the surgical box is in the second working state, both ends of the first communication channel communicate with the suction chamber and the storage chamber respectively, and both ends of the third communication channel communicate with the other end of the peristaltic joint part and the discharge channel respectively.

2. The surgical box according to claim 1, characterized in that, the box body includes a top cover and a base which are hermetically connected, and the suction chamber and the storage chamber are surrounded by the docking of protrusions provided at corresponding positions on the opposite side surfaces of the top cover and the base.

3. The surgical box according to claim 1, characterized in that, a storage cavity is formed on the outer surface of the box body near the discharge outlet, and the storage cavity is used to store a waste liquid bag connected to the discharge outlet.

4. The surgical box according to claim 1, characterized in that, a detection interface is further provided on the box body, and the detection interface is used to connect with a sensor for detecting the pressure or flow rate of the liquid in the suction chamber.

5. The surgical box according to claim 1, characterized in that, the switching mechanism includes: a switching chamber, the wall surface of the switching chamber is provided with through holes respectively connected to the suction chamber, the storage chamber, the discharge channel and the other end of the peristaltic joint part; a switching valve body, placed within the switching chamber, the first communication channel, the second communication channel and the third communication channel are formed in the switching valve body, and the switching valve body can rotate around an axis so that each communication channel is connected to a different through hole, thereby enabling the surgical box to be in a corresponding working state.

6. The surgical box according to claim 5, characterized in that, the first communication channel and the second communication channel are arranged at intervals along the axial direction of the switching valve body, and the first communication channel and the second communication channel are respectively perpendicular to the axial direction of the switching valve body; the openings at both ends of the third communication channel are respectively in the same plane as the first communication channel and the second communication channel.

7. The surgical box according to claim 5, characterized in that, The switching mechanism further includes a first sealing sleeve, which is disposed between the switching valve body and the switching chamber, and through holes are provided on the surface of the first sealing sleeve opposite to the outlet positions of the respective communication channels.

8. The surgical cassette according to claim 5, wherein, the switching valve body is installed through the box body in the length direction, and a docking groove for connecting a driving component is provided at the end of the switching valve body exposed from the box body.

9. The surgical cassette according to claim 1, wherein, the peristaltic joint portion includes: a joint side wall disposed at the edge of the box body; a mounting groove provided along the joint side wall, and the notch of the mounting groove faces away from the box body, and both ends of the mounting groove extend into the box body respectively; a first interface provided at one end of the mounting groove and communicating with the switching mechanism; a second interface provided at the other end of the mounting groove and connected to the storage chamber.

10. The surgical cassette according to claim 1, wherein, a double-layer pipeline is further provided in the box body, one end of the double-layer pipeline is respectively connected to the discharge channel and the peristaltic joint portion, and the other end of the double-layer pipeline faces the switching mechanism.

11. The surgical cassette according to claim 1, wherein, a perfusion channel is further provided in the box body, the perfusion inlet and the perfusion outlet at both ends of the perfusion channel are respectively exposed from the box body, and a control valve for controlling the on-off of the perfusion channel is provided on the perfusion channel.

12. The surgical cassette according to claim 11, wherein, the control valve includes: a control chamber, and perfusion through holes respectively connected to the perfusion inlet and the perfusion outlet are provided on the wall surface of the control chamber; a control valve body disposed in the control chamber, a communication channel is formed in the control valve body, and the control valve body can rotate around an axis to connect the communication channel with the perfusion through hole so as to conduct the perfusion channel.

13. The surgical cassette according to claim 12, wherein, the control valve further includes a valve sealing sleeve disposed between the control valve body and the control chamber, and through holes are provided on the surface of the valve sealing sleeve opposite to the outlet position of the communication channel.

Images