Surgical irrigation cassette

Abstract

Disposable cassettes are disclosed that facilitate the connection of surgical instruments to a vacuum source and a fluid source, respectively. [Solution] The surgical irrigation cassette comprises a cassette housing, a part of a pump, and multiple fluid paths. The housing defines a chamber and a first console connector, the first console connector comprising a first pneumatic connector port. The part of the pump comprises a pump suction side and a pump discharge side. Multiple fluid paths are at least partially arranged within the chamber. The first fluid path connects the pump suction side to a supply fluid container at the installation location. The second fluid path connects the pump discharge side to a handpiece at the installation location. The third fluid path connects the handpiece to a waste container at the installation location. The fourth fluid path connects the first console connector to a waste container at the installation location.

Description

Technical Field

[0001] It relates to a surgical perfusion cassette.

[0002] [Related Application] This application claims all of the priority and benefits of both U.S. Provisional Patent Application No. 62 / 749,320, filed on October 23, 2018 and U.S. Provisional Patent Application No. 62 / 735,850, filed on September 24, 2018, and their contents are hereby incorporated by reference in their entirety.

Background Art

[0003] A surgical fluid management system that can be incorporated into a surgical cutting system can achieve the communication of fluid from a fluid source to a surgical site and the communication of fluid from the surgical site to a waste cannister without contaminating the associated vacuum pump or fluid supply pump.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The use of a first type of cassette that connects a surgical cutting tool to a sterile fluid source and the use of a second type of disposable cassette that connects a surgical tool to a fluid vacuum are both known. The disclosed disposable cassette facilitates the connection of a surgical tool to each of a vacuum source and a fluid source. This cassette may be a disposable cassette that is discarded after one use.

[0005]

Means for Solving the Problems

[0006] The cassette may have a second console connector.

[0007] The surgical irrigation cassette may include a fifth fluid pathway. The fifth fluid pathway is the third The first end connected to the fluid path and the second connected to the second console of the housing It may have ends.

[0008] The fluid management system consists of a console, a vacuum source, a first pressure sensor, and a second pressure sensor. It has a cassette. The console defines the cassette opening and two pneumatic controls. The sole port is located within the cassette opening. The vacuum source is connected to the console or It is integrated into the console and communicates with the first pneumatic console port. The pressure sensor is integrated into the console and communicates with a second pneumatic console port. The second pressure sensor is integrated into the console and is located at the first pneumatic console port. It is in communication with the one above. The cassette is selectively slidably positioned within the cassette opening. The cassette comprises a housing, an infusion section of the pump, and multiple fluid pathways. The housing is essentially rigid and defines the chamber inside. The infusion section of the pump. It includes a suction side and a discharge side of the pump. Multiple fluid paths are provided for the first fluid flow. It comprises a channel, a second fluid path, a third fluid path, a fourth fluid path, and a fifth fluid path. Each fluid path is at least partially located within the chamber. The path comprises a first end connected to the suction side and a second end connected to the supply fluid container. The second fluid path consists of the first end connected to the discharge side and the second end connected to the handpiece. It has an end. The third fluid path is connected to the first end which is connected to the handpiece and the waste container. It has a second end that is connected to the container. The fourth fluid path is the first consort of the housing. It has a first end connected to a connector and a second end connected to a waste container. Console connector 1 is a pneumatic console when the cassette is placed inside the cassette opening. It has a first pneumatic connector port which is pneumatically connected to the first of the reports. The fluid path is connected to the first end of the third fluid path and to the second console of the housing. It has a second end connected to the connector. The second console connector is connected to the cassette. The second pneumatically connected to the second pneumatic console port when installed within the set opening. It has two pneumatic connector ports.

[0009] The cassette housing consists of two substantially parallel first walls connected by a third wall around the perimeter. It may include a first wall and a second wall.

[0010] The cassette housing may have a substantially C-shaped side (side surface) that defines a first arm and a second arm, and the first console connector is fixed to the first arm, and the second console connector having a second pneumatic connector port may be fixed to one of the first arm and the second arm.

[0011] The second console connector may be fixed to the second arm.

[0012] Each of the pneumatic connector ports may be defined by a related opening for receiving a port tube. Each console connector may further include a seal for sealing engagement with the port tube.

[0013] Each console connector may include a seal for pneumatically sealing engagement with the pneumatic port tube of the console.

[0014] Each console connector may include a two-way valve that has a closed state when the console connector is not receiving a pneumatic port tube.

[0015] The two-way valve may be formed from a polymer material. The two-way valve may have a concave shape when viewed from the outside and may have a slit therethrough.

[0016] The two-way valve and the seal may be integrally formed from a polymer material.

[0017] The housing may include a window disposed above one of a plurality of paths for receiving a path throttling means (path throttling valve). ​​​​​​

[0018] The housing is located above the third fluid path to accommodate the path throttling means (path throttling valve). It may have windows.

[0019] The cassette has a reservoir and a normally open one-way valve (normally open one-way valve) for liquid stopping. It may also be provided with a stop connector. The reservoir has a third fluid path within the housing. It may be placed between the third fluid path and the fifth fluid path. The normally open one-way valve is located between the third fluid path and the It may be placed between the server and the server.

[0020] The cassette, more specifically the liquid stop connector, is located within the third fluid path. The reservoir may further include pipes that constitute part of the fluid path. The one-way valve may be located between the fluid path and the pipe and the reservoir. It's fine if it is done.

[0021] A one-way valve may consist of a ball check valve. The ball of the ball check valve is installed In the orientation (installation position), gravity biases it to the open position, and liquid from the third fluid path... Due to the collision with and the increase in the fluid pressure of the third fluid path relative to the fluid pressure of the fifth fluid path, It could also be designed to be pushed upwards to the closed position.

[0022] The reservoir is equipped with a sloping floor above the ball check valve that tapers towards the ball check valve. Even if it is there, the inclined floor allows the flow from the reservoir to the ball in the state of installation orientation (installation posture). The flow is guided to the check valve and then passed over the ball check valve in the open position into the third fluid path (return). ) The liquid flow path may be defined.

[0023] The reservoir is positioned horizontally between the ball check valve and the connection to the fifth fluid path. It may be equipped with a baffled wall.

[0024] The baffle wall has a lower end that defines a liquid return gap between the baffle wall and the floor, and the reservoir It may have an upper end that engages with a bar.

[0025] The cassette is connected to the second end of the second fluid path and the first end of the third fluid path. It may also be equipped with a handpiece connector, the handpiece connector is a second fluid path And may constitute a part of each of the third fluid paths.

[0026] The first fluid path may include an IV bag connector.

[0027] The fourth fluid path may include a liquid-blocking filter.

[0028] The infusion portion of the pump is constructed from a compressible peristaltic pump tube located on the outside of the housing. It may have been done.

[0029] Each console connector consists of a connector housing and a pneumatic interface sleeve. The connector housing may be substantially rigid, and the peristaltic pump It may have a receiving tube that engages with the tube. The receiving tube is the first fluid path. and may define a portion of one of the second fluid paths. Pneumatic interface sleeve It may be formed as part of the connector housing, with a through-opening and positioned within the opening. It may have a sealed surface.

[0030] Each console connector is closed when no cassette is placed inside the console. It may further include a two-way valve in the closed position.

[0031] Multiple fluid pathways arranged within the housing are at least partially flexible tubes. The housing may be configured as follows: The housing may have internal support walls, and along the internal support walls It's also fine if flexible tubes are used.

[0032] The fluid management system further includes a supply fluid container, a handpiece, and a waste container. That's fine.

[0033] The method using a surgical irrigation cassette involves the steps of preparing the cassette and controlling the cassette. Steps include inserting the cassette into the console, and placing the cassette in the supply fluid container, handpiece, and disposal. The steps include connecting to a material container, a housing, a pump tube, and multiple A cassette is prepared, each having a fluid path. The housing is substantially rigid. The chamber is defined internally. The pump tube is a compressible peristaltic pump tube. It is located on the outside of the housing. Multiple fluid paths are located at least partially within the chamber. It is arranged as follows: a first fluid path, a second fluid path, a third fluid path, and a fourth fluid path. It includes a fifth fluid path. The first fluid path is connected to the first end of the pump tube. It has a first end connected to a supply fluid container and a second end connected to a supply fluid container. The first end is connected to the second end of the pump tube and the second end is connected to the handpiece. It has an end. The third fluid path is connected to the first end which is connected to the handpiece and the waste container. It has a second end that is connected to the container. The fourth fluid path is fixed to the housing. It comprises a first end connected to the console connector and a second end connected to the waste container. The fifth fluid path is fixed to the first end and housing, which are connected to the third fluid path. It has a second end connected to a second console connector. The control console is equipped with or connected to a vacuum source. The second of the first fluid path The end of the first fluid path is connected to the supply fluid container. The second end of the second fluid path is connected to the handpiece. The first end of the third fluid path is connected to the handpiece. The second end of the fourth fluid path is connected to the waste container. It can be done.

[0034] The pump roller may be selectively engaged with the peristaltic pump tube, and such engagement may be The fluid may be transferred from the supply fluid container to the handpiece. The step of selectively adjusting the vacuum source to adjust the vacuum pressure in the handpiece is further enhanced. It may be included in it.

[0035] This method involves the steps of providing a suction manifold and providing a fifth fluid path through the suction manifold. The step may further include selectively connecting to the atmosphere via a suction manifold. It may be placed between the vacuum source and the cassette. The suction manifold is a vacuum source, large It may also be connected to air and fluids via a console connector.

[0036] This method is based on the fact that the increase in vacuum detected in the handpiece has reached a predetermined threshold. Depending on the circumstances, the procedure may further include the step of connecting the fifth fluid path to the atmosphere.

[0037] In this specification, when describing at least one embodiment of the structure described, relative Typical orientations and directions (e.g., upward, downward, bottom, rear, front, back, behind, external) (Internal, inward, outward, lateral, left side, right side, proximal, distal) are defined, These provisions are not intended to restrict, but rather to benefit the reader.

[0038] The illustrated components may take many different forms, and there are numerous and / or alternatives. Components and equipment may be included. The illustrated exemplary components are intended to be limiting. This does not mean that additional or alternative components and / or implementations may be used. The components shown in the diagram are not necessarily drawn to scale unless explicitly indicated otherwise. stomach. [Brief explanation of the drawing]

[0039] [Figure 1] A perspective view of an exemplary surgical irrigation cassette positioned for insertion into a control console. [Figure 2] This figure shows an example of a surgical fluid management system and a schematic diagram illustrating the relationship between the cassette in Figure 1 and other components of the fluid management system. [Figure 3] Figure 2 is a diagram of the surgical fluid management system. [Figure 4] Figure 1 is a perspective view of the cassette. [Figure 5] Figure 1 is an exploded view of the cassette. [Figure 6] Figure 1 is an exploded view of an example cassette, showing the peristaltic pump tubing and console connector. [Figure 7] These are cross-sectional views of the tube and connector in Figures 5 and 6, taken from the direction of arrow 7 which penetrates surface 7'. [Figure 8] Figures 6 and 7 show a first perspective view of the combined seal and valve of the connectors. [Figure 9] Figure 8 is a second perspective view of the combined seal and valve. [Figure 10] This is a cross-sectional view of the console connector in Figure 4, taken from the direction of arrow 10 which penetrates surface 10'. [Figure 11] This is a cross-sectional view of the console connector in Figure 10, which receives the port tube. [Figure 12] This is a disassembled view of the vacuum adjustment connector for the cassette. [Figure 13] This is a cross-sectional view of the vacuum adjustment connector in Figure 12, taken from the direction of arrow 13, which penetrates the surface 13' in Figure 5, where the check valve is in the open position. [Figure 14] This is a cross-sectional view of the vacuum regulating connector in Figure 13, with the check valve in the closed position. [Modes for carrying out the invention]

[0040] As shown in Figures 1 to 14, the exemplary surgical fluid management system 20 is an exemplary system The system includes a console 22 and an exemplary removable cassette 24. It is selectively accepted by console 22 and engaged with console 22. It's like this.

[0041] Figure 1 shows the cassette 24 located outside the console 22. Cassette 24 The cassette opening 25 (referred to here as the receiving slot 25) of the console 22 and the cassette Anticipating that slot 24 will be moved in the direction of arrow A in order to be inserted into slot 25 They are lined up in a straight line. The receiving opening 25 does not necessarily have to be limited to a slot shape. There are no other geometric shapes, for example, circular openings, square openings, etc., although not limited to them. It may have an elliptical opening, etc. The cassette 24 slides into the slot 22. By being movably pushed in, it is inserted into the console 22 in a way that allows for selective removal. It is best to insert it. Once inserted into console 22, cassette 24 will be in console 22. It is considered to be placed inside. That is, the inserted cassette 24 is inside console 22 This means it will be positioned there. Cassette 24 can be removed by pulling cassette 24 out of slot 25. It is preferable that it be selectively removed from console 22 by the following. Removal is done by the cassette 24 Before or during the removal from console 22, a release button or switch (not shown) may be used. By pressing this button, it can be done smoothly.

[0042] Figure 2 schematically shows the relationship between the cassette 24 and other system components. The role of cassette 24 is to facilitate the connection of the components shown in the diagram. Multiple fluid pathways are incorporated within the cassette 24. These fluid pathways are part of the system It connects some of the components. Cassette 24 is located inside console 22. It is shown in this state.

[0043] Furthermore, the cassette 24 is shown connected to the fluid source 26 by the first fluid path 27. The fluid source 26 may take the form of a supply fluid container, for example, but is not limited to this. It would be good to have one. The supply fluid container is, for example, a vein containing a liquid solution, although this is not limited to a specific type of container. It is preferable that it be in the form of an internal bag (infusion bag) 26. The intravenous bag 26 is referred to here as an IV bag Also known as Bag 26. Cassette 24 is designed to facilitate connection with IV bags. It is preferable to have a V-bag connector 45. The first end of the first fluid path 27 is a cassette It is connected to the suction side of a pump 28 having an infusion section partially integrated within 24. Pump 28 should be a positive displacement pump (positive displacement transfer pump). One type of positive displacement pump. For example, although not limited thereto, the peristaltic pump 28 described in more detail below is The pump 28 described in detail in this specification is a peristaltic pump, but (see below) Other pump types may be used (including some of which are described). Peristaltic pump 28 is cassette Includes a peristaltic pump tube 29 incorporated within the T24. This constitutes the infusion portion of the pump 28. The pump roller 21 of the pump 28 is The pump roller 21 is located inside the console 22. It is preferable that it be driven by the pump motor 23. The second end of the fluid path 27 is connected to the fluid source 26. It is connected. The solution in IV bag 26 is selected to be suitable for cleaning the surgical site. This is fine. As mentioned above, alternative pumps may be used, one example being limited Although not a direct replacement, centrifugal pumps are one example. Further alternative forms of pumps include the US Special Found in permits No. 5,046,486 and No. 6,099,494. Other alternatives As a component, it functions as the infusion part of the pump, located inside the cassette (not shown). Examples include those having a positive displacement pump rotor and a drive wheel located inside the console. The drive wheel (not shown), driven by motor 23, is connected to the pump roller 2. It is very similar to 1. However, this drive wheel is magnetically connected to the rotor. This means that the pump rotor does not make mechanical contact between the wheel and the pump rotor. It can be driven.

[0044] Furthermore, the cassette 24 is used for surgical procedures via the second fluid path 32 and the third fluid path 33. It is connected to endpiece 30. Fluid paths 32, 33 are at least within cassette 24 Partially integrated. The exemplary handpiece 30 is made by Stryker (registered trademark). Found in the Sonopet® ultrasonic aspirator by Sonopet Corporation. Handpiece 30 is for tissue excision, fluid supply to the surgical site, and fluid and small fragments from the surgical site. More specifically, it enables the removal of excised fragments by suction. The supply of fluid to the surgical site is: Alternatively, it is also called irrigation of the surgical site. Drainage of fluid and debris is performed by aspirating the fluid and debris. This is thus achieved, and is also referred to as fluid and debris suction. Suction is explained in more detail below. This is achieved by applying the vacuum described herein. Control of aspiration and irrigation at the surgical site is described in this specification. In the documentation, this is collectively referred to as fluid management. The second fluid path 32 passes the fluid through the handpiece. The fluid is supplied to the surgical site, and the third fluid path 33 supplies the fluid to the handpiece 30. It is discharged from the surgical site.

[0045] The second fluid path 32 has a first end connected to the discharge side of the pump 28 and a handpiece 3 It has a second end connected to 0. The third fluid path 33 is connected to the handpiece 30. It comprises a first end that is connected and a second end that is connected to the waste container 31. 31 is preferably in the form of a rigid waste canister 31. Handpiece connector 3 4 is part of the second fluid path 32 and the third fluid path 33, respectively, and the cassette 24 and It is preferable to have it interposed between the handpiece 30 and the device.

[0046] Cassette 24 is connected to waste canister 31 by a third fluid path 33. The waste canister 31 is used to deliver a third fluid from the surgical site by the handpiece 30. It is designed to receive the discharge fluid and associated debris that are drawn in through the passage 33.

[0047] Furthermore, the cassette 24 is connected to the suction manifold 35, which is built into the console 22. It would be good to do so. Vacuum source 36, for example, a vacuum pump, is not limited to a vacuum pump. The handpiece 30 and waste are selectively pneumatically connected to the cassette 24 via the holder 35. The associated vacuum pressure in the waste canister 31 is used by surgeons and other system users. It is managed by the system operator and the system control logic in the console 22. The term "vacuum pressure" as used in this specification is defined in this document. The terms "vacuum" and "negative pressure" used in the specification are equivalent, and both are This refers to a pressure lower than the pressure of the ambient air. The term "air" is equivalent to the term "atmosphere," and neither term is equivalent to the other. The term is also used herein. The pressure of the ambient air is referred to herein as "atmospheric pressure." Section 4 The first end of the fluid path 37 is connected to the vacuum source 36 via a suction manifold. The first console connector 38 of T24, and the second end of the fourth fluid path 37, It is connected to the waste container 31. The suction manifold 35 is connected to the third fluid path 33. This is selectively connected to the ambient air, i.e., the atmosphere, via a fifth fluid path 39.

[0048] The fifth fluid path 39 has a first end connected to the third fluid path 33 and the cassette 24 It has a second end connected to a second console connector 40. Further details below As described above, when cassette 24 is inserted into console 22, the second console The second end of the fifth fluid path through the connector 40 is in contact with the atmosphere via the suction manifold 35. It will continue.

[0049] Figure 3 shows at least a portion of the suction manifold 35 at the exemplary component level. A schematic diagram of the suction section 41 of an exemplary fluid management system 20 is shown.

[0050] The cassette 24, shown by the dashed line 24 in Figure 3, consists of multiple tubes, which will be described in more detail below. These tubes are equipped with a handpiece 30, a canister 31, and virtual wire 2 A fluid path 33,3 connects the console 22, indicated by 2, and the vacuum source 36 to each other. It includes at least a portion of 7,39. Cassette 24 is a selectively operable flow path throttling hand It also includes a step (flow path throttling mechanism) and a liquid stop connector 43. The flow path throttling means is a flow rate throttling mechanism. A valve, for example, a pinch valve 42, is preferable, although it is not limited to such valves. (Example Selective Act) A gate valve may be used instead of a pinch valve as the movable flow throttling valve 42. The valve is an actuator, for example, an electronic solenoid, etc., but not limited to electronic solenoids. It is operated by a stepping motor, etc. Cassette 24 is liquid shut-off filter It also has a liquid barrier filter 44. The liquid barrier filter 44 prevents liquid in the canister 31 from reaching the console. It is placed in the fourth fluid path 37 to prevent it from reaching 22.

[0051] The throttle valve 42 restricts the flow through the third fluid path 33, thereby reducing the flow at the surgical site. In order to limit the vacuum suction of the handpiece 30 and the discharge of material from the handpiece 30 It is used. The throttle valve 42 is preferably at least partially pneumatically displaceable, alternatively A valve actuator (not shown), for example, a pneumatic piston (but not limited to) It may also be equipped with a type tub valve actuator. The valve actuator is (here a third tub To squeeze (pinch) the flexible tube 70 (called tube 70), as described below The tube 70 is pressed. The tube 70 forms part of the third fluid path 33. The third fluid path 33 is then restricted by atmospheric pressure or vacuum supplied from the control valve 46. Such a constriction creates a third fluid path 33 between the handpiece 30 and the waste canister 31. This restricts the flow through it. This restrictor responds to the application of vacuum pressure to the valve actuator. This is preferably done by the displacement of the piston-type valve actuator relative to the 70. The third tube 70 functions as a valve 42, and the tube 70 is controlled by a valve actuator. It closes when compressed. In Figure 3, the actuator piston of console 22 This provides a mechanical connection between the console 22 and the third tube 70 of the cassette 24. To illustrate this point, the connection between valve 42 and valve 46 is shown by a dashed line, or dotted line. It is being done.

[0052] Such a valve actuator is preferably located within the console 22. Throttle valve 4 Control 2 involves using either vacuum or atmospheric pressure to open and close the throttle valve 42, which acts as the valve actuator. This may be done by selecting whether to apply it to a displacement actuator, for example. For example, although not limited, it can be selectively changed by an electric solenoid (not shown). This may be done by the positioned control valve 46. The control valve 46 and its associated displacement actuator The EAT units are preferably located within the console 22. The control valve 46 is in the open position. At a certain first position, the actuator piston of the throttle valve 42 is moved to the large connector path 48. The valve 42 is connected to the atmosphere via the first opening 47 to the air, thereby opening the valve 42 to the open position (static position). Move to the third fluid path 33. The control valve 46 connects the actuator piston of the throttle valve 42 to the vacuum source 36, and Therefore, the throttle valve 42 is moved to the closed position, closing the third fluid path 33. The throttle valve 42 In the first mode, the fluid is selected to flow from the handpiece 30 to the canister 31. It may be controlled by a solenoid valve that is actuated accordingly. The throttled position, i.e., the closed position. The choice between the restricted and unrestricted positions, i.e., the open position, is made by a signal transmission device, for example, a restricted position. Although it is not possible to do so, a foot pedal (not shown) that communicates with console 22 is used. This should preferably be done by a system operator.

[0053] The first end connected to the third fluid path 33 between the throttle valve 42 and the handpiece 30, A fifth fluid path 39 having a second end connected to a second console connector 40 This allows for the release of the vacuum at the surgical site via console 22. First variable flow The relief valve 50 is located inside the console. The relief valve 50 is for the fifth fluid path 39. The second end is used to connect to the atmosphere through the first opening 47 to the atmosphere. The defined flow path tube 52 and multiple, for example, three, but not limited to, vacuum The combination of pressure sensors 54 is located between the cassette 24 and the relief valve 50 within the console 22. In this configuration, the first relief fluid path 56 is positioned along the path 56 in order to estimate the flow through the path 56. A console control device (not shown) is used in response to the vacuum measurement value from sensor 54. Then, in order to release the vacuum in the third fluid path 33, the valve 50 is selectively opened. It is.

[0054] The fourth fluid path 37 connects the canister 31 to the vacuum pump 36. 36 is connected to the atmosphere via a second opening 57 to the atmosphere. Liquid barrier filter 44 To prevent the liquid in the canister 31 from reaching the console 22, a fourth It is located within the fluid path 37. The vacuum-connected fluid path 58 is located within the console 22. It is located between the vacuum source 36 and the cassette 24. Defined flow path tube 52 and multiple For example, although not limited, a combination with three vacuum pressure sensors 54 is possible. It is positioned along the fluid path 58 and used to estimate the flow through the path 58. The communicating fluid path 58 also passes through the second variable flow relief valve 62 and the third opening 60 to the atmosphere. It is connected to the atmosphere.

[0055] The exemplary cassette 24 shown in Figures 4 and 5 comprises a cassette housing 64 and a liquid port. Pump elements, for example, but not limited to, a compressible peristaltic pump tube 29 and the first The first tube 66 constitutes part of the fluid path 27, and the second tube 66 constitutes part of the fluid path 32. The second tube 68 and the third tube 70 which constitute part of the third fluid path 33 And the fourth tube 72 which constitutes part of the fourth fluid path 37 and the fifth fluid path 39 The fifth tube 74, which forms part of the system, the liquid stop connector 43, and the first console connector It includes a connector 38, a second console connector 40, and a liquid shut-off filter 44. .

[0056] The fluid path tubes 66, 68, 70, 72, 74 and the peristaltic pump tube 29 are flexible. It is also preferable that it be transparent. Used in tubes 66, 68, 70, 72, 74, and 29. One example material is Tygon® tubing. Tubes 66, 68, Each of 70, 72, and 74 is a continuous single tube section, as can be inferred from the diagram. It was not necessary, so it was cut into several small tube pieces, and those small tube pieces were joined together. By doing so, tubes 66, 68, 70, 72, and 74 are formed respectively. It's fine if you do that.

[0057] As best shown in Figures 1, 4, and 5, the cassette housing 64 is substantial It is rigid, and plastics, for example, thermosetting plastics, are not limited to It is preferable that it be formed from a cubic structure. The exemplary housing 64 is joined by a third peripheral wall 80. It comprises a first wall 76 and a second wall 78. The third peripheral wall 80 is made of the first and second Walls 76 and 78 are spaced apart from each other, defining the internal area 82 of the housing 64. An internal support wall 84 is located inside the housing 64. This facilitates the demarcation of pathways for tubes 66, 68, 70, 72, and 74 within tube 64. Fluid paths 27, 32, 33, 37, 39 are alternatively connected to housing 64 and at least partially They may be formed integrally, in which case the formed multiple cavities are paths 27, 32, 33, It may constitute part of 37,39.

[0058] The housing 64 is located within the first wall 76 of the housing 64, as best shown in Figure 4. It is equipped with a retaining projection (return) 86 formed on the inside of the console 22. The latch is engaged at the latch engagement surface 88 by a positioned (not shown) latch. Depending on how console 22 is configured, it can be manually unlocked. Alternatively, it may be electrically released, thereby allowing the cassette 24 to be pulled out of the console 22. This becomes possible. The electrical release of the automatically activated latch is controlled by the automatic cassette in the console. It would be good to combine it with an ejection system. An automatic cassette ejection system is an electric ejection system. A tuner, for example, is powered by a solenoid or motor, although this is not limited to a specific type of tuner. It is configured to selectively push the 24 out of the console, at least partially. .

[0059] The housing 64 has a C-shaped side defined in cooperation with the walls 76, 78, and 80. The C-shaped side portion 90 is also referred to here as the lower arm 92. (ru) the first arm 92 and the second arm (also referred to here as the upper arm 94) The first console connector 38 is located at the end of the first arm 92. It is located there. The second console connector 40 is located at the end of the second arm 94. Console connectors 38 and 40 are connected to wall 76 and 78. Whether it is formed separately from 80 or integrally with walls 76, 78, and 80 Regardless, it constitutes part of Housing 64.

[0060] The first and second consorts, as shown in Figure 5, are incorporated into the peristaltic pump tube 29. Console connectors 38 and 40 are shown in the exploded view of Figure 6. They are substantially mirror-symmetric to each other. However, connectors 38 and 40 have the following characteristics, namely The cassette chamfer 93 is provided along one corner edge of the connector 38, 40. In this respect, they differ from each other. Here, the cassette chamfer 93 is, for example, limited Although not intended to be chamfered, it is provided along the corner edge of the second connector 40. 93 is the key-fitting feature section, that is, the orientation feature section (attitude feature section) of the cassette 24. It works. The console acceptance slot has a complementary slot chamfer 95 to the cassette chamfer 93. By providing it in 25, unauthorized insertion of the cassette 24 into slot 25 is prevented, for example, by limiting it. While it doesn't directly cause problems, it can prevent incorrect insertion, incorrect orientation, etc. Cassette chamfering. ri93 allows the cassette 24 to be accepted by the acceptance slot 25. Therefore, as shown in Figure 1, it extends along the entire length of the cassette housing 64. It would be good to do so. Alternatively, the end of the cassette housing 64 is at the installation position of the console 22 In the case of cassette 24 configured to remain on the outside, the chamfer 93 is located on the cassette housing 6 It may extend to be shorter than the total length of 4. Unless otherwise specified, console connector 38 ,40 is practically rigid and is made of the same material as the cassette housing 64, for example, While not limited to that, it would be preferable if it were made from thermoplastic plastic.

[0061] The first and second console connectors 38 and 40 are each connected to the first connector base 96 and the second connector base 96', and the first passage cap 98 and the second passage cap 98 The connector caps 98, 98' are each connected to the connector bases 96, 9 It is positioned to cover the end of 6'. Connector base 96, 96' and passage cap 98 ,98' is practically rigid, and is made of the same material as the cassette housing 64, for example, While not restricted, it is preferable that it be made from a thermoplastic material. Further details below. After the installation of the seal valve 114, the passage cap 98 will be connected by any appropriate means, for example However, it is not limited to being fixed to the base 96 by adhesive, press-fitting, welding, etc. Figures 10 and 11 show an exemplary ultrasonic device in which the cap 98 is joined near the outer circumference of the base 96. The wave weld 99 is schematically shown. The base 96' and cap 98 of the second connector 40. ' should also be joined to each other in a similar manner.

[0062] The connector bases 96 and 96' of console connectors 38 and 40 are respectively receiving tubes. For example, although not limited, nipples with protrusions (returns) 100, 100' It has. The nipple 100 of the first console connector 38 is connected to the peristaltic pump tube 2 The first end of 9 is accepted. The nipple 100' of the second console connector 40 is peristaltic port The second end of the tube 29 is received by the nipple 100, 100' of the tube 29. To facilitate retention, a retaining ring 102 is placed over the end of the tube 29. Figure 1 shows the most As is often shown, the peristaltic tube 29 is substantially flush with the peripheral wall 80 of the C-shaped side portion 90. It would be good if it were a row.

[0063] The first passage cap 98 defines the connecting passage 104 of the first fluid path 27. The second passage cap 98' defines the connecting passage 104' of the second fluid path 32. The cross-sectional view of 7 shows that the connecting passages 104 and 104' are on the same plane as the peristaltic pump tube 29. This suggests that, as indicated by passages 104 and 104' in Figure 6, connecting passage 10 4,104' may be angle-shifted relative to each other.

[0064] The first and second console connectors 38 and 40 are routed into the housing 64, respectively. Liquid interface sleeves 106, 106' and pneumatic interface sleeves It is equipped with 108, 108'. Liquid interface sleeves 106, 106' and air The pressure interface sleeves 108, 108' are substantially the same and mainly consist of cassette 2 It differs in its use within 4.

[0065] The first and second console connectors 38, 40 are caps 98, 98' respectively. Openings, for example, but not limited to, the first pneumatic connector port 110 and the second It has a pneumatic connector port 110'. Ports 110, 110' are connected to console 2 Two port tubes, for example, the first pneumatic port tube 11 best shown in Figure 11. To facilitate acceptance of 2, the pneumatic interface sleeves 108, 108' and straight They should be lined up together. The first is accepted by the first pneumatic connector port 110 Although only the pneumatic port tube 112 is shown, the second pneumatic connector port 110' is also shown. The relationship of the second pneumatic port tube (not shown), which is accepted by the same means, is also substantially It is the same. The port tube 112 connects to the pneumatic console port 112 of the console 22. It has been defined.

[0066] The seal valve 114 is trapped between the cap 98 and the base 96. This refers to flexible materials suitable for use as seals, for example, but not limited to, Polymer materials, for example, formed from rubber and neoprene, though not limited to these. As best shown in Figures 8 and 9, the seal valve is located outside the port tube 112. It has a cylindrical valve wall 116 with a first inner diameter that is larger than the diameter. Furthermore, the annular seal 118 is formed integrally with the cylindrical valve wall 116. The annular seal 118 is It extends radially beyond the cylindrical valve wall 116.

[0067] Furthermore, the two-way valve 120, which is integrally formed with the cylindrical valve wall 116, is opposite the inlet end of the valve wall 116. It is located at the opposite end. The valve 120 is in the form of a closing part 122 that covers the end. The section 122 has a dome shape. That is, the closing section 122 forms a dome. The dome-shaped closing section 122, when viewed from the outside of the cassette housing 64, is the cylindrical valve wall 11 It has a concave shape that is recessed from the inside of 6. The dome shape of the closed part 122 is a perfect hemisphere. Smaller than that. The dome-shaped closure 122 can be multiple, for example, not limited to, It has four slits 124 that are uniformly spaced apart from each other. These slits 124 are It extends radially from the center point of the closed portion 122, penetrating the closed portion 122. Slit 1 The number 24 may be changed. The slit 124 is formed when the closing portion 122 is deformed into a port tube. The radius is sufficient for the blade 112 to penetrate the closing portion 122 without tearing the seal valve 114. It is preferable that it has a certain length. The concave dome shape of valve 114 is the pneumatic connector of cassette 24. The liquid reaching the fourth and fifth tubes 72 and 74 connected to ports 110 and 110' This will facilitate retention. Valve 114 operates as a two-way valve.

[0068] Furthermore, the seal valve 114 is provided with a lip 126 on the inner diameter side near the inlet end of the cylindrical valve wall 116. The inner diameter of lip 126 is smaller than the outer diameter of port tube 112. 26 is provided to allow pneumatic sealing engagement with the port tube 112 It is preferable that the b 112 is sealed by a pneumatic seal. Sealing engagement between cap 98 and seal 118 To achieve this, the bead 128 engages with the seal 118 of the cap 98 on the side where It is formed on the cap 98 so as to surround the port 110.

[0069] Housing 64 is an actuator, for example, a console, although not limited to this. A pinch valve window 130 is provided in the second wall to allow the operation of the pneumatic piston located inside 22. It is located inside 78. Window 130 is adjacent to the third tube 70. Also, the housing 64 has a support base 132 within the first wall 176 that is aligned straight with the window 130. The base unit compresses the tube 70 by the pneumatic piston of console 22, thus enabling throttling. It provides a reaction surface that enables the function.

[0070] The liquid stop connector 43 is best shown in Figures 12 to 14. Liquid stop connector This includes a retaining chamber 134, a pipe 136, a valve ball 138, and a ball trap ring 140. The retaining chamber 1 includes a chamber cover 142 and a chamber baffle wall 144. 34 is referred to here as reservoir 134.

[0071] The liquid stop connector 43 is located between the fifth tube 74 and the third tube 70. The pipe 136 is located inside the third tube 70. The illustrated operating position In other words, the cassette 24 aligns with the directional arrow 146 molded within the housing 64. When installed in the console according to the installation orientation, the chamber 134 is located within the pipe 136 It is located above the pipe 136 and the chamber 134. The chambers are fluidly connected to each other by a first stem 138 that connects to the bottom of the chamber. The second stem 150, located near the top and above the bottom of the chamber, connects the chamber 134 to the second stem 150. Tube 74 of 5 is fluidly connected. Chamber 134, pipe 136, first station The 148 and the second stem 150 are integrally formed as a single piece made of a common material. The chamber cover 142 is sealed and fixed to the top of the chamber 134. The valve ball 138 is preferably formed from a lightweight, flexible, water-resistant material. Examples of materials include the ingress of liquid into the chamber from the third tube 70 and the valve ball 13 The impact of the liquid on 8 or the phase of the fifth tube 74 against the pressure in the third tube 70 Ball 138 and ring 140 are affected by any rapid, i.e., sharp changes in pressure. Silicone is used to facilitate sealing between them. The first stem 148 is ball It is preferable to have multiple support columns 152 for supporting 138 from below, thereby, It is possible to restrict the return of fluid from the chamber to pipe 136 and the third tube 70. In the open position, the ball is biased by gravity and sits on the support column 152. (Alternative) The bottom surface 154 of the chamber 134 (also called the floor 154 of the chamber 134) is the stem 1 To facilitate discharge within 48, it is good to have an incline, specifically the first stem 14 8 and tapers towards the valve. The ball trap ring 140 is for ball 138 It is positioned above. The ball trapping ring 140 has a surface facing the ball 138. It is good if it is taken. Ball 13 is formed by the inflow of fluid into the first stem 148. The upward movement of 8 presses the ball 138 against the concave surface of the trap ring 140, This seals the inflow of fluid from the first stem 148 into the chamber 134. 138 and the trap ring 140 work together to form a one-way ball check valve.

[0072] The cover 142 is integrally formed with the chamber baffle wall 144. 44 engages with the cover 142 and extends substantially vertically and downward from the cover 142. The baffle wall 144 is positioned between the first stem 148 and the second stem 150. The bottom edge 155 of the baffle wall 144 provides a liquid return gap 156 to the chamber. It is spaced a predetermined distance D from the bottom surface 154. The baffle wall 144 has an alternative configuration. It may also be formed as part of the chamber 134. It extends from the floor 154 of the chamber 134 and laterally above the valve ball 138 and ring 140. It may extend in a direction.

[0073] The cover 142 has a ball lock stopper 145 extending from the cover 142. Also good. The ball lock stopper 145, best shown in Figure 12, extends from the cover 142 downwards. It extends in that direction. When the liquid stop connector 43 is assembled in the installation position, The ball stopper 145 is located above the ball 138 and ring 140. The liquid stopper 145, when in use, is installed in the first stem 148 position of the liquid stop connector 43. This helps to hold the ring 140 in place. The installation position is shown in Figures 13 and 14. This is well demonstrated. The advantages of the baffle wall 144 in restricting undesirable fluid flow are highlighted. For the purpose of this explanation, the ball lock stopper 145 is not shown in Figures 13 and 14.

[0074] As best shown in Figure 12, the cover 142 and the pipe 136 are, respectively, It is equipped with gate tabs 157 and 159, respectively. The gate tabs 157 and 159 are located on cover 14 2. Integrated chamber 134, pipe 136, first stem 148, and second stem 150 This facilitates the molding of each individual part.

[0075] The sealed position of ball 138 is shown in Figure 14, and the open position of ball 138 is shown in Figure 13. Yes, they are.

[0076] Cassette 24 is configured to be used only once. Therefore, measures will be needed to address the contamination of cassettes caused by use. Reusing cassette 24 requires the cassette to be rebuilt, and at a minimum, housing 6 This requires disassembling part 4 and replacing the fluid passages, seals, and valves that make up cassette 24. Furthermore, in order to facilitate the assembly of the housing 64 and to prevent the disassembly of the housing 64 Therefore, the tab 158 with a projection (return) is attached to at least one of the walls 76, 78, 80 (and another wall It may be incorporated to engage with notches 76, 78, and 80 (160). Wireless Automatic Identification (RFID) (not shown) within the insole 22 The RFID tag (not shown) is combined with a reader inside the cassette housing 64. If incorporated, single use of cassette 24 is further recommended. Single-use parts, replacement In other words, use RFID tags and RFID readers to avoid reusing disposable parts. One method is described in U.S. Patent Application Publication No. 2007 / 00, published on April 19, 2007. It is listed in document 85686A1.

[0077] When operating, an operator or assistant, for example, is required, but is not limited to, The cassette housing 24 is placed in slot 25 of console 22 by a nurse or surgical technician. It is pushed inward. By pushing the cassette housing 24 into the slot 25, The first pneumatic port tube 112 and the second pneumatic port tube of console 22 (not shown) (but not) the pneumatic connector port 110 and the first console connector 38 respectively The 2 console connectors 40 are inserted into the pneumatic connector port 110', and the console Each of the connectors 38 and 40 engages with the seal valve 114. First pneumatic connector port 11 By inserting the first pneumatic port tube 112 into the 0, the fourth tube 72 becomes a vacuum source 36 is connected. Similarly, (not shown) into the second pneumatic connector port 110' By inserting the second pneumatic port tube, the fifth tube 74 connects to the suction manifold 35 It is connected to the console 22. If it were not integrated with the console 22, the vacuum source 36 would be connected to the operator. Therefore, it is best to connect it to console 22. Also, the operator should use IV bag connector 4 Connect 5 to the IV bag 26, and connect one end of the third tube 70 to the canister 31. Both the other end of the third tube 70 is connected to the handpiece 30, and the fourth tube 72 is connected It is best to connect it to Nista 31. Also, the operator should connect the handpiece 30 to the second tube. It is best to connect to 68. Handpipes to the second tube 68 and the third tube 70 respectively. The connection of -30 is preferably made using the handpiece connector 34. The latch engagement surface 88 of the retaining projection 86 of the set housing 64 is located inside the console 22. By engaging with a latch (not shown), the cassette housing 64 is positioned in a console It is held inside the 22. The RFID tag on the cassette housing 64 is found on a new, appropriate cassette. The reader in console 22 identifies the fluid management system All feature components of the TEM20 become operational.

[0078] Once installed, cassette 24 can hold liquids, for example, not limited to sterile liquids. A lavage solution consisting of saline ("lavage solution") is supplied to the surgical site from IV bag 26, and waste fluid is removed. To facilitate the removal of surgical debris ("waste") from the surgical site into the canister 31 It is used.

[0079] When a selective request is made by the operator, specifically, the cleaning signal transmission device, for example However, this is not limited to manual or foot-operated flushing switches (not shown). When this instruction is given, the liquid is pumped from the IV bag 26 to the first tube by the pump 28. It is pulled out through 66. The pump roller 21 engages with the peristaltic pump tube 29, That is, the peristaltic pump tube 29 is pressed, and then driven by the motor 23, cleaning The liquid is moved through the peristaltic pump tube 29 from the first connector 38 to the second connector 40. Next, the cleaning solution is applied to the second tube 68, the handpiece connector 34, and the handpiece. It moves through the Dopiece 30 to the surgical site.

[0080] When a selective request is made by the operator, specifically, the suction signal transmission device, for example However, this is not limited to, a manual or foot-operated suction switch (not shown) When that instruction was given, the waste was released from the surgical site by the negative pressure on the canister 31. The canister passes through the handpiece 30, the handpiece connector 34, and the third tube 70. I was drawn into the Ta31.

[0081] The vacuum inside the canister 31 is generated by the vacuum pump 36. The resulting negative pressure is then transferred to the manifold 35 connected to the first pneumatic port tube 112. The signal is transmitted to the canister 31 through the first connector 38 and the fourth tube 72. .

[0082] The application of vacuum pressure in the handpiece 30 is, for example, not limited to, pin It is adjusted by applying or releasing pressure by opening and closing valve 42. When valve 42 is in the open position, That is, when the third tube 70 is not constricted, the vacuum inside the canister 31 is It communicates with the handpiece via tube 70 and will draw waste from the surgical site. When valve 42 is in the closed position, specifically, the third tube is inside console 22 (not shown). When restricted by the valve actuator (not being restricted), the flow through the third tube 70 is blocked. The waste is not removed and is not extracted from the surgical site. Such vacuum regulation is used for suction signal transmission. This should preferably be performed selectively by an operator using a device.

[0083] The vacuum in the handpiece 30 is further adjusted by adjusting the pressure in the third tube 70. This is also acceptable. Such adjustments may be made by opening and closing the first variable flow relief valve 50. For example, when the valve 50 detects a predetermined magnitude of negative pressure in the handpiece 30, This is indicated by one or more sensors 54 and is located within the control console 22. When instructed by the logic, it opens to the atmosphere, thereby into the third tube 70 Furthermore, it is preferable to reduce the vacuum in the handpiece 40. Such adjustments can be made at the console. It may be automatically managed by a control device (not shown) located within 22.

[0084] Upon completion of the procedure, cassette 24 will receive instructions from the operator or assistant, for example, restrictions. It is not a command that involves pressing a button or transmitting other signals to the console 22. Therefore, it is selectively removed from console 22. Cassette 24 is either console 22 or They were removed and detached from the IV bag 26, canister 31, and handpiece 30. It would be good if it were later discarded.

[0085] In the drawings, the same reference number refers to the same element. Furthermore, these elements Some or all of these may be changed. For example, the shape of the housing 64 is a rectangular cross-section. Rather, it may be cylindrical in shape with a circular cross-section. Such a cassette is It would be preferable to accept it through a console having a complementary cylindrical cassette opening. To simplify the twist-lock mechanism, the tab opens the housing or cassette. It is preferable that the port and the receiving groove be provided on one side of the inner wall of the opening, and the receiving groove be provided on the other side. The rod and cassette opening are positioned straight toward each other in the locking position to enable fluid connection. It would be good if they were lined up neatly. Instead of ports and seals inside the wall, a port concentric with the opening. The tube may be designed to be received by the port opening of the housing. Regarding the processes, systems, methods, etc. described in the specification, the status of such processes, etc. The steps are described as being performed according to several regular sequences, such The process is carried out in an order other than that specified herein. It is important to understand that this can be done step by step. Several steps may be performed simultaneously. Other steps may be added, some of the steps described herein It should be further understood that the step may be omitted. In other words, the pro in this specification Seth's description is presented to illustrate several embodiments and does not limit the claims. It should never be interpreted that way.

[0086] Therefore, the above explanation is intended to be illustrative and not restrictive. Please understand that there are many embodiments other than the examples presented. The use will become clear. The scope of the invention should not be determined based on the above description. The amount is determined based on the entire scope of the attached claims and the equivalents to which such claims apply. It should be the case that the technologies described herein may be developed in the future and that the disclosed It is anticipated and intended that systems and methods may be included in such future embodiments. In short, please understand that this application is modifiable and can be amended.

[0087] As used herein, the adverb "substantially" refers to materials, machining, etc. Due to imperfections in manufacturing, data transmission, calculation speed, etc., shape, structure, measured values, quantity, time Deviating from geometric shapes, distances, measurements, quantities, times, etc., that are accurately described. This means that there is / are

[0088] All terms used in the claims are used unless expressly indicated otherwise herein. To the extent that it is understood, it has the ordinary meaning as understood by a person familiar with the technology described herein. It is intended to be so. In particular, the use of singular articles such as "a," "the," and "said" is intended to be used in claiming Unless a clause explicitly states conflicting restrictions, one or more of the indicated elements may be described. It should be interpreted as meaning that it is present.

[0089] The summary is presented to enable readers to quickly verify the characteristics of the technical disclosure. The abstract should not be used to interpret or limit the scope or meaning of the claims. It is presented with the understanding that it does not exist. In addition, in the detailed explanation above, this disclosure It can be seen that various features have been grouped into various embodiments for the purpose of simplification. The methods disclosed herein are described in each claim as embodiments explicitly stated in each claim. It should not be interpreted as reflecting an intention to require more features. Rather, As reflected in the claims, the subject matter of the present invention is all of the single disclosed embodiments. It is based on fewer features than the features described above. Therefore, the claims are based on the detailed explanation above. Although explicitly incorporated, each claim is independent as a separately claimed subject matter.

Claims

1. A substantially rigid cassette housing defining the chamber and the first console connector. and, The infusion part of the pump, A plurality of fluid paths, at least partially arranged within the chamber, A surgical irrigation cassette equipped with, The first console connector is equipped with a first pneumatic connector port, The infusion portion of the pump comprises a suction side and a discharge side of the pump. The plurality of fluid paths are the first fluid path, the second fluid path, the third fluid path, and the fourth fluid path. Including systemic pathways, The first fluid path has a first end connected to the suction side of the pump and a supply fluid container. A second end to which is connected, The second fluid path has a first end connected to the discharge side of the pump and a handpiece. A second end to which is connected, The third fluid path has a first end connected to the handpiece and a second end connected to the waste container. A second end is provided, The fourth fluid path has a first end connected to the first console connector, and A second end connected to a waste container, Surgical irrigation cassette.

2. The housing consists of first walls substantially parallel to each other, connected by a third peripheral wall. The surgical irrigation cassette according to claim 1, further comprising a second wall.

3. The housing has substantially C-shaped sides defining the first arm and the second arm. Yes, The first console connector is fixed to the first arm, The second console connector, which includes a second pneumatic connector port, is connected to the first arm and A surgical irrigation cassette according to claim 1, which is fixed to one of the second arms.

4. The second console connector is fixed to the second arm, as described in claim 3. Surgical irrigation cassette.

5. Each of the first pneumatic connector port and the second pneumatic connector port is a port Defined by the associated opening for receiving the tube, Each of the first console connector and the second console connector is the port The surgical irrigation casing according to claim 3, further comprising a seal for sealing engagement with the tubing .

6. Each of the first console connector and the second console connector is a console The invention provides a seal for pneumatically sealing and engaging the pneumatic port tube of the pipe, as described in claim 3. Surgical irrigation cassette.

7. Each of the first console connector and the second console connector is the first The console connector and the second console connector receive the pneumatic port tube. Surgical irrigation tube according to claim 6, comprising a two-way valve that is closed when not inserted. .

8. The two-way valve is formed from a polymer material, and the two-way valve has a concave shape when viewed from the outside. A surgical irrigation cassette according to claim 7, comprising a slit penetrating it.

9. The two-way valve and the seal are integrally formed from the polymer material, claim Surgical cassette as described in item 8.

10. The housing is positioned above one of the plurality of fluid paths to receive the path throttling means. A surgical irrigation cassette according to claim 1, comprising a positioned window.

11. The housing is positioned above the third fluid path to receive the path throttling means. A surgical irrigation cassette according to claim 1, comprising a window.

12. The fifth fluid path has a first end connected to the third fluid path and the housing's first end A surgical irrigation cassette according to claim 1, comprising a second end connected to a console 2 to.

13. It also features a liquid stop connector, The aforementioned liquid stop connector is Displaced within the housing between the third fluid path and the fifth fluid path The reservoir, A normally open one-way valve is positioned between the third fluid path and the reservoir, A surgical irrigation cassette according to claim 12, comprising the following:

14. A pipe that is placed within the third fluid path and constitutes a part of the third fluid path is further Prepare, The reservoir is positioned between the pipe and the fifth fluid path. The one-way valve is disposed between the pipe and the reservoir, as described in claim 13. Surgical irrigation cassette.

15. The aforementioned one-way valve is composed of a ball check valve, The ball of the aforementioned ball check valve is biased to the open position by gravity in the installed orientation, The collision with the liquid from the third fluid path and the fluid pressure of the fifth fluid path of the third fluid One of the increases in fluid pressure in the body path pushes it upward to the closed position. The surgical irrigation cassette according to claim 13.

16. The reservoir has a slope that tapers towards the ball check valve above the ball check valve. Equipped with a sloping floor, The inclined floor, in the state of the installation orientation, allows the flow from the reservoir to the ball check valve This guides the flow back into the third fluid path, passing over the ball check valve in the open position. A surgical irrigation cassette according to claim 15, which defines a liquid flow path.

17. The reservoir is horizontally positioned between the ball check valve and the connection to the fifth fluid path. A surgical irrigation cassette according to claim 16, comprising a baffle wall positioned at a certain position.

18. The baffle wall has a lower end that defines a liquid return gap between the baffle wall and the inclined floor. The surgical irrigation according to claim 17, having an upper end that engages with the cover of the reservoir. cassette.

19. The cassette is located at the second end of the second fluid path and the first end of the third fluid path. It further includes a handpiece connector to which it is connected. The handpiece connector is located in one of the second fluid path and the third fluid path. A surgical irrigation cassette according to claim 1, comprising a part.

20. The first fluid path comprises an IV bag connector, the surgical irrigation tube according to claim 1. set.

21. The surgical irrigation case according to claim 1, wherein the fourth fluid path comprises a liquid blockage filter. .

22. The infusion portion of the pump is a compressible peristaltic pump tube located on the outside of the housing. A surgical irrigation cassette according to claim 1, comprising a b.

23. The cassette further comprises a second console connector, Each of the first console connector and the second console connector is, A substantially rigid connector housing having a receiving tube that engages with the peristaltic pump tube. Zing and, A pneumatic interface sleeve formed as part of the connector housing, Equipped with, The receiving tube defines a portion of one of the first fluid path and the second fluid path. death, The aforementioned pneumatic interface sleeve has a through-opening and a seal positioned within the opening. A surgical irrigation cassette according to claim 22, having the following:

24. Two directions within the first console connector and the second console connector, respectively. It is further equipped with a valve, The two-way valve is in a closed state when the cassette is not placed inside the console. , the surgical irrigation cassette according to claim 23.

25. The plurality of fluid paths arranged within the housing are at least partially flexible tubes The housing is composed of a hub, and the housing has an internal support wall, and along the internal support wall the A surgical irrigation cassette according to claim 1, wherein a flexible tube is arranged.

26. A cassette opening is defined, and two pneumatic console ports are located within the cassette opening. insole and, A vacuum source connected to or incorporated into the console The vacuum source is in communication with the first of the pneumatic console ports, A second component is incorporated into the console and communicates with the second pneumatic console port. Pressure sensor 1, It is incorporated into the console and communicates with the first pneumatic console port. The second pressure sensor, A cassette selectively slidably disposed within the cassette opening, A fluid management system comprising, The aforementioned cassette is A substantially rigid housing that defines the chamber internally, The infusion part of the pump, A plurality of fluid paths, at least partially arranged within the chamber, Equipped with, The infusion portion of the pump comprises a suction side and a discharge side of the pump. The plurality of fluid paths are the first fluid path, the second fluid path, the third fluid path, and the fourth fluid path. Including a body pathway and a fifth fluid pathway, The first fluid path has a first end connected to the suction side and is connected to the supply fluid container. A second end, The second fluid path has a first end connected to the discharge side and is connected to the handpiece. A second end, The third fluid path has a first end connected to the handpiece and a second end connected to the waste container. A second end is provided, The fourth fluid path is connected to the first console connector of the housing. It comprises one end and a second end connected to the waste container, The fifth fluid path has a first end connected to the third fluid path and the housing It has a second end that is connected to a second console connector, The first console connector is located when the cassette is installed in the cassette opening. A first pneumatic connector port is pneumatically connected to the first of the pneumatic console ports. It has a The second console connector is located when the cassette is installed in the cassette opening. A second pneumatic connector port is pneumatically connected to the second pneumatic console port. Having a Fluid management system.

27. The housing consists of first walls substantially parallel to each other, connected by a third peripheral wall. The fluid management system according to claim 26, further comprising a second wall.

28. The housing has substantially C-shaped sides defining the first arm and the second arm. Yes, The first console connector is fixed to the first arm, The second console connector is fixed to the second arm, as described in claim 26. Fluid management system.

29. Each of the first pneumatic connector port and the second pneumatic connector port is, The first console connector for receiving a port tube that defines a console port Defined by the opening of the connector and the opening of the second console connector, Each of the first console connector and the second console connector is the port The fluid management system according to claim 26 further comprises a seal for sealing engagement with the tube. Tem.

30. Each of the first console connector and the second console connector is the The sole comprises a seal for pneumatically sealing engagement with the pneumatic console port, claim The fluid management system described in 26.

31. Each of the first console connector and the second console connector is connected to the cassette The system includes a two-way valve that is in a closed state when the nut is not located inside the console. A fluid management system as described in item 30.

32. The two-way valve is formed from a polymer material, and the two-way valve has a through slit. A fluid management system according to claim 31, comprising a dome.

33. The two-way valve and the seal are integrally formed from the polymer material, claim The fluid management system described in 32.

34. The housing is positioned above the third fluid path to receive the path throttling means. A fluid management system according to claim 26, comprising a window.

35. It also features a liquid stop connector, The aforementioned liquid stop connector is Displaced within the housing between the third fluid path and the fifth fluid path The reservoir, A normally open one-way valve is positioned between the third fluid path and the reservoir, A fluid management system according to claim 26, comprising:

36. A pipe that is placed within the third fluid path and constitutes a part of the third fluid path is further Prepare, The reservoir is positioned between the pipe and the fifth fluid path. The one-way valve is disposed between the pipe and the reservoir, as described in claim 35. Fluid management system.

37. The aforementioned one-way valve is composed of a ball check valve, The ball of the aforementioned ball check valve is biased to the open position by gravity in the installed orientation, The collision with the liquid from the third fluid path and the fluid pressure of the fifth fluid path of the third fluid One of the increases in fluid pressure in the body path pushes it upward to the closed position. The fluid management system according to claim 35.

38. The reservoir has a slope that tapers towards the ball check valve above the ball check valve. Equipped with a sloping floor, The inclined floor, in the state of the installation orientation, allows the flow from the reservoir to the ball check valve This guides the flow back into the third fluid path, passing over the ball check valve in the open position. A fluid management system according to claim 37, which defines a liquid flow path.

39. The reservoir is positioned horizontally between the ball check valve and the fifth fluid path. A fluid management system according to claim 38, comprising a baffled wall.

40. The baffle wall has a lower end that defines a liquid return gap between the baffle wall and the inclined floor. The fluid control system according to claim 39, having an upper end that engages with the cover of the reservoir. Stem.

41. The cassette is located at the second end of the second fluid path and the first end of the third fluid path. It further includes a handpiece connector to which it is connected. The handpiece connector is located in one of the second fluid path and the third fluid path. A fluid management system according to claim 26, comprising the part.

42. The first fluid path comprises an IV bag connector, as described in claim 26. Stem.

43. The fluid management system according to claim 26, wherein the fifth fluid path comprises a liquid shut-off filter. Tem.

44. The infusion portion of the pump is a compressible peristaltic pump tube located on the outside of the housing. A fluid management system according to claim 26, comprising a b.

45. Each of the first console connector and the second console connector is peristaltic It features a substantially rigid housing with a receiving tube that engages with the pump tube, The receiving tube defines a portion of one of the first fluid path and the second fluid path. death, Each of the first console connector and the second console connector is connected to the housing. Formed within the zing, Each of the first console connector and the second console connector has a through The flow according to claim 44, comprising an opening and a tube, and a seal disposed within the opening. Body management system.

46. Two directions within the first console connector and the second console connector, respectively. It is further equipped with a valve, The two-way valve is in a closed state when the cassette is not placed inside the console. The fluid management system according to claim 45.

47. The plurality of fluid paths arranged within the housing are at least partially flexible tubes The housing is composed of a hub, and the housing has an internal support wall, and along the internal support wall the The fluid management system according to claim 26, wherein a flexible tube is arranged.

48. The aforementioned supply fluid container, The aforementioned handpiece, The aforementioned waste container, The fluid management system according to claim 26, further comprising the following:

49. A method using a surgical irrigation cassette, The surgical irrigation cassette is, A substantially rigid housing that defines the chamber internally, A compressible peristaltic pump tube is positioned outside the housing, A plurality of fluid paths, at least partially arranged within the chamber, Each of the following is included: The plurality of fluid paths are the first fluid path, the second fluid path, the third fluid path, and the fourth fluid path. Including a body pathway and a fifth fluid pathway, The first fluid path has a first end connected to the first end of the peristaltic pump tube, It comprises a second end connected to a supply fluid container, The second fluid path is connected to the first end which is connected to the second end of the peristaltic pump tube, A second end connected to the handpiece, The third fluid path has a first end connected to the handpiece and a second end connected to the waste container. A second end is provided, The fourth fluid path is connected to the first console connector fixed to the housing. It comprises a first end that is connected to the waste container, The fifth fluid path has a first end connected to the third fluid path and the housing It has a second end connected to a second console connector fixed to, The aforementioned method, The steps include preparing the surgical irrigation cassette, Insert the cassette into a control console equipped with a vacuum source or connected to said vacuum source. The steps to take, The steps include connecting the second end of the first fluid path to the supply fluid container, The steps include connecting the second end of the second fluid path to the handpiece, The steps include connecting the first end of the third fluid path to the handpiece, The steps include connecting the second end of the third fluid path to the waste container, The steps include connecting the second end of the fourth fluid path to the waste container, A method using a surgical irrigation cassette, including [specific component].

50. The pump roller is selectively engaged with the peristaltic pump tube, and such engagement allows fluid to flow through it. The surgical irrigation according to claim 49, wherein the fluid is transferred from the supply fluid container to the handpiece. A method using cassettes.

51. A step that selectively adjusts the vacuum source in order to adjust the vacuum pressure in the handpiece. A method using the surgical irrigation cassette according to claim 49, further comprising a cup.

52. The vacuum source, the atmosphere, the first console connector, and the second console connector A step is provided between the vacuum source and the cassette to install a suction manifold that is fluidly connected to the vacuum source. P and, The step of selectively connecting the fifth fluid path to the atmosphere via the suction manifold. and, A method using the surgical irrigation cassette according to claim 49, further comprising:

53. In response to the increase in vacuum detected in the handpiece reaching a predetermined threshold The surgical method according to claim 52, further comprising the step of connecting the fifth fluid path to the atmosphere. A method using an irrigation cassette.

Images