Abstract: A coupler for coupling an endoscope to a camera head includes a base configured to mount to the camera head and to receive an eyepiece of the endoscope; a clamp for clamping the eyepiece in the base, the clamp configured to move laterally relative to a longitudinal axis of the coupler between a clamping position and non-clamping position; at least one clamping arm rotatably connected to the clamp and comprising a pin that moves in a slot of the base, wherein when the clamp moves laterally toward the clamping position, movement of the pin in the slot causes the at least one clamping arm to rotate into engagement with the eyepiece; and a button for pressing by a user to move the clamp from the clamping position to the non-clamping position.

Abstract: This application provides an uplink transmit power determining method, a related network device and storage medium. In the method, a terminal determines an uplink transmit power based on the repetition count of the UCI. (uplink control information) it receives from a network device. The repetition count of the UCI on a user side is adaptively configured based on a PL(path loss), an interference the and the low coverage level for a user currently accessing at a high coverage level so that a transmit power of the UCI is controlled and an avalanche effect caused by always selecting full-power uplink transmission is avoided.

Abstract: An illuminator including a receptacle for connecting a light cable to an illuminator. The receptacle includes a clamp assembly having a plurality of clamping jaws that are moveable from an open configuration in which a connecter of the light cable can be positioned between the clamping jaws for receiving light traveling in a light pathway in the illuminator to a closed configuration in which the clamping jaws completely block the light pathway, and a clutch that is movable between an engaged position for holding the clamping jaws in the open configuration and a disengaged position for allowing the clamping jaws to move to a gripped configuration and to the closed configuration, the clutch can be pushed by the connector when the connector is positioned between the clamping jaws to move the clutch out of the engaged position so that the clamp assembly moves the clamping jaws to the gripped configuration.

Abstract: A valve spring fixing device and a plunger pump are disclosed. The valve spring fixing device includes a spring fixing piece, which includes a first supporting surface and a second supporting surface located at two ends of the spring fixing piece, and an intermediate portion located between the first supporting surface and the second supporting surface; and a spring mounting portion connected with the intermediate portion and configured to mount a valve spring, the first supporting surface and the second supporting surface are configured to contact with a valve box to fix the valve spring fixing device.

Abstract: A valve spring seat sleeve, a valve assembly, and a plunger pump are disclosed. The valve spring seat sleeve includes a cylindrical hollow structure, a first fluid hole, a first notch and a second notch; the cylindrical hollow structure includes a plunger passage; the first fluid hole passes through a sidewall of the cylindrical hollow structure and communicated with the plunger passage; the first notch and the second notch are located on a side of the cylindrical hollow structure opposite to the first fluid hole; the cylindrical hollow structure includes a first end portion, a second end portion and an intermediate portion, a center of the first fluid hole is located at the intermediate portion, the cylindrical hollow structure further includes a spring mounting portion located between the first notch and the second notch.

Abstract: A valve spring seat sleeve, a valve assembly, and a plunger pump are disclosed. The valve spring seat sleeve includes a cylindrical hollow structure, a first fluid hole, a first notch and a second notch; the cylindrical hollow structure includes a plunger passage; the first fluid hole passes through a sidewall of the cylindrical hollow structure and communicated with the plunger passage; the first notch and the second notch are located on a side of the cylindrical hollow structure opposite to the first fluid hole; the cylindrical hollow structure includes a first end portion, a second end portion and an intermediate portion, a center of the first fluid hole is located at the intermediate portion, the cylindrical hollow structure further includes a spring mounting portion located between the first notch and the second notch.

Abstract: An endoscope includes a connection portion for connecting the endoscope to a camera head; a needle assembly; a sleeve that is fixed relative to the needle assembly; a focusing optic assembly housed within the sleeve and comprising at least one optical component, the focusing optic assembly being translatable relative to the sleeve for adjusting a focus of the endoscope; and a user-engageable rotator operably coupled to the needle assembly and the sleeve to rotate the needle assembly and sleeve relative to the connection portion to adjust a view direction of the needle assembly

Abstract: An illuminator including a receptacle for connecting a light cable to an illuminator. The receptacle includes a clamp assembly having a plurality of clamping jaws that are moveable from an open configuration in which a connecter of the light cable can be positioned between the clamping jaws for receiving light traveling in a light pathway in the illuminator to a closed configuration in which the clamping jaws completely block the light pathway, and a clutch that is movable between an engaged position for holding the clamping jaws in the open configuration and a disengaged position for allowing the clamping jaws to move to a gripped configuration and to the closed configuration, the clutch can be pushed by the connector when the connector is positioned between the clamping jaws to move the clutch out of the engaged position so that the clamp assembly moves the clamping jaws to the gripped configuration.

Abstract: The invention discloses a high-low pressure lubrication system for a high-horsepower plunger pump, including a high-pressure oil line and a low-pressure oil line, the high-pressure oil line is used for lubricating the connecting rod bearing bushes and the crosshead bearing bushes in the plunger pump, the low-pressure oil line is used for lubricating the crankshaft bearings, the crosshead sliding rails, the reduction gearbox bearing, and the reduction gearbox gear pair in the plunger pump.

Abstract: A housing for an instrument such as an endoscopic camera head is provided. The housing includes at least two parts which are attachable to each other by using tabs and grooves, creating a sealed and tamper-evident housing without the use of externally exposed fasteners. A tool for attaching the two parts and a method of its use are also provided.

Abstract: A surgical tool system with a handpiece and a cutting accessory that has inner and outer hubs. The handpiece has a spring biased lock ring that abuts a complementary stop member integral with the accessory outer hub to hold the accessory to the handpiece. An RFID chip is disposed against an inner wall of the accessory outer hub. An elastomeric seal pressed against the inner wall of the accessory outer hub provides environmental protection for the RFID chip. The seal has a rib that extends around the outer perimeter of the proximal end of the outer hub so as to form a seal between the accessory and an adjacent inner wall of the handpiece. Stop tabs extend inwardly from the seal to prevent the drive hub disposed inside the outer hub from falling out.

Abstract: A surgical tool system with a handpiece and a cutting accessory that has inner and outer hubs. The handpiece has a spring biased lock ring that abuts a complementary stop member integral with the accessory outer hub to hold the accessory to the handpiece. An RFID chip is disposed against an inner wall of the accessory outer hub. An elastomeric seal pressed against the inner wall of the accessory outer hub provides environmental protection for the RFID chip. The seal has a rib that extends around the outer perimeter of the proximal end of the outer hub so as to form a seal between the accessory and an adjacent inner wall of the handpiece. Stop tabs extend inwardly from the seal to prevent the drive hub disposed inside the outer hub from falling out.

Abstract: A housing for an instrument such as an endoscopic camera head is provided. The housing includes at least two parts which are attachable to each other by using tabs and grooves, creating a sealed and tamper-evident housing without the use of externally exposed fasteners. A tool for attaching the two parts and a method of its use are also provided.

Abstract: A housing for an instrument such as an endoscopic camera head is provided. The housing includes at least two parts which are attachable to each other by using tabs and grooves, creating a sealed and tamper-evident housing without the use of externally exposed fasteners. A tool for attaching the two parts and a method of its use are also provided.

Abstract: A surgical tool arrangement a handpiece which is capable of accepting and operating a number of different surgical tools or instruments adapted for use with the handpiece, each having one or multiple functions. The handpiece incorporates a coupling arrangement located at a distal end thereof which serves to attach the desired surgical instrument to the hand-piece via a locking mechanism, and also provides an electrical contact arrangement to support the functioning of an electrosurgical probe as well as a combined mechanical cutting and electrosurgical tool. Additionally, the handpiece accepts a conventional cutter which only requires power for driving a movable cutting element.

Abstract: A coupler for connecting an endoscope to a camera including a cylinder having a zoom lens and a focus lens therein. A zoom adjustment member engages the cylinder with a first coefficient of friction and is movable relative thereto to cause axial movement of the zoom lens. The zoom adjustment member is operatively connected to a focus adjustment member such that movement of the zoom adjustment member causes the focus adjustment member to move thereby moving both the zoom lens and the focus lens axially. The focus adjustment member engages the zoom adjustment member with a second coefficient of friction and is movable relative thereto to cause axial movement of the focus lens within the cylinder. The first coefficient of friction is greater than the second coefficient of friction such that movement of the focus adjustment member does not cause movement of the zoom adjustment member.

Abstract: A housing for an instrument such as an endoscopic camera head is provided. The housing includes at least two parts which are attachable to each other, creating a sealed and tamper-evident housing without the use of externally exposed fasteners.

Abstract: A surgical tool system with a handpiece and a cutting accessory that has inner and outer hubs. The handpiece has a spring biased lock ring that abuts a complementary stop member integral with the accessory outer hub to hold the accessory to the handpiece. An RFID chip is disposed against an inner wall of the accessory outer hub. An elastomeric seal pressed against the inner wall of the accessory outer hub provides environmental protection for the RFID chip. The seal has a rib that extends around the outer perimeter of the proximal end of the outer hub so as to form a seal between the accessory and an adjacent inner wall of the handpiece. Stop tabs extend inwardly from the seal to prevent the drive hub disposed inside the outer hub from falling out.

Abstract: A powered surgical handpiece that includes a motor for actuating a cutting accessory. The handpiece has a housing with a bore for receiving the cutting accessory and a coupling member internal to the bore that releasably engages and actuates the cutting accessory. A coil is mounted to the housing adjacent the bore. More particularly, the coil is located so that when the cutting accessory is seated in the bore, the coil is able to exchange signals with a complementary coil integral with the cutting accessory. A locking assembly mounted to the housing releasably holds the cutting accessory in the bore.

Abstract: A surgical tool system with a handpiece and a cutting accessory that has inner and outer hubs. The handpiece has a spring biased lock ring that abuts a complementary stop member integral with the accessory outer hub to hold the accessory to the handpiece. An RFID chip is disposed against an inner wall of the accessory outer hub. An elastomeric seal pressed against the inner wall of the accessory outer hub provides environmental protection for the RFID chip. The seal has a rib that extends around the outer perimeter of the proximal end of the outer hub so as to form a seal between the accessory and an adjacent inner wall of the handpiece. Stop tabs extend inwardly from the seal to prevent the drive hub disposed inside the outer hub from falling out.