WO2019218120A1 - Ensemble accueil, poignée de connexion de fil de guidage de pression et dispositif médical ayant une poignée - Google Patents

Ensemble accueil, poignée de connexion de fil de guidage de pression et dispositif médical ayant une poignée Download PDF

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Publication number
WO2019218120A1
WO2019218120A1 PCT/CN2018/086744 CN2018086744W WO2019218120A1 WO 2019218120 A1 WO2019218120 A1 WO 2019218120A1 CN 2018086744 W CN2018086744 W CN 2018086744W WO 2019218120 A1 WO2019218120 A1 WO 2019218120A1
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WO
WIPO (PCT)
Prior art keywords
handle
pressure
alignment sleeve
guide wire
handle housing
Prior art date
Application number
PCT/CN2018/086744
Other languages
English (en)
Chinese (zh)
Inventor
刘浩
张立喆
匡陵英
Original Assignee
北京佰为深科技发展有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京佰为深科技发展有限公司 filed Critical 北京佰为深科技发展有限公司
Priority to PCT/CN2018/086744 priority Critical patent/WO2019218120A1/fr
Publication of WO2019218120A1 publication Critical patent/WO2019218120A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3616—Holders, macro size fixtures for mechanically holding or positioning fibres, e.g. on an optical bench
    • G02B6/3624—Fibre head, e.g. fibre probe termination
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6851—Guide wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09116—Design of handles or shafts or gripping surfaces thereof for manipulating guide wires
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3845—Details of mounting fibres in ferrules; Assembly methods; Manufacture ferrules comprising functional elements, e.g. filters

Definitions

  • the invention belongs to the technical field of medical instruments, in particular to a pressure guide wire connecting handle for connecting between a pressure guide wire and a demodulating instrument, a docking component which can be used for a pressure wire connecting handle, and a The pressure guide wire is connected to the medical device of the handle.
  • Medical pressure guidewires can be used for minimally invasive interventional procedures in vascular and non-vascular lumens.
  • the pressure guide wire is provided with a pressure sensor for measurement of blood pressure.
  • the pressure signal from the pressure sensor can be transmitted to the demodulation instrument through the optical fiber inside the pressure guide wire for analysis and processing by the demodulation instrument.
  • a pressure guidewire connection handle is used to establish a connection between the pressure guidewire and the demodulation instrument.
  • the pressure wire connecting handle generally receives a pressure guide wire at one end thereof, and receives an interface cable connected to the demodulating instrument at the other end thereof, and the optical fiber in the pressure guide wire engages the demodulating instrument in the pressure wire connecting handle.
  • the interface cable forms a signal connection from the pressure guide wire to the demodulation instrument.
  • the existing pressure guide wire connection handle lacks a structure for effectively fixing the pressure guide wire, resulting in the pressure guide wire being easily detached from the handle, or there is a clamping mechanism for the pressure guide wire, but the clamping mechanism is complicated, resulting in The cost is increased and there is a lack of effective protection of the outer surface of the pressure guide wire, which tends to damage the coating of the pressure guide wire.
  • the optical fiber connecting portion of the pressure guide wire and the interface cable is liable to have a bad docking, thereby affecting signal transmission.
  • the existing pressure wire connecting handle lacks the effect of dust removal on the surface of the fiber.
  • the present invention proposes a novel pressure guide wire connecting handle which solves the above problems due to the following technical features and brings other technical effects.
  • the invention firstly proposes a pressure guide wire connecting handle, which comprises:
  • a docking assembly comprising a first alignment sleeve and a second alignment sleeve aligned with each other in a center, wherein the first alignment sleeve has a stepped through hole, the stepped through hole being more The large diameter portion is for receiving a portion of the pressure guide wire, the smaller diameter portion of the stepped through hole for receiving and retaining the reserved fiber, the second alignment sleeve having a longitudinal center for receiving the interface cable
  • the through holes of the first alignment sleeve and the second alignment sleeve of the through hole are aligned with each other;
  • a handle housing accommodating the docking assembly and having a longitudinal bore extending to the docking assembly, wherein the longitudinal bore is aligned with the stepped through bore of the first alignment sleeve and the longitudinal center through bore of the second alignment sleeve alignment.
  • the pressure guide wire connecting handle of the present invention connects the pressure guide wire and the interface cable together through a reserved optical fiber located in the first alignment sleeve, instead of the pressure guide wire and the interface cable Direct connection, which can improve the quality of the docking and thus improve the quality of optical signal propagation.
  • the reserved fiber can be effectively and firmly fixed in the smaller diameter portion of the first alignment sleeve, which has good positional stability with respect to the handle, resulting in a relatively poor positional pressure guide.
  • Both the wire and the interface cable are connected to the reserved fiber with good stability at this position, which can avoid signal problems caused by instability.
  • the present invention has a docking mechanism consisting only of a first alignment sleeve and a second alignment sleeve, since the first alignment sleeve is provided with a stepped through hole, the first alignment sleeve is passed through One component forms a larger diameter portion for receiving the pressure guidewire and a smaller diameter portion for receiving and retaining the reserved fiber, which has the advantage of component simplification. Additionally, the pressure guidewire and the reserved fiber are docked within the first alignment sleeve as a single component, which provides a more stable environment for docking.
  • both ends of the stepped through hole of the first alignment sleeve are expanded.
  • the expanded ends of the stepped through holes can guide the pressure guide wire and the interface cable to easily connect the pressure guide wire and the interface cable from both ends of the first alignment sleeve The first alignment sleeve is inserted.
  • the docking assembly further includes a spring abutting between the flange of the second alignment sleeve and the inner shoulder of the handle housing to press the second alignment sleeve toward the first An alignment sleeve.
  • the tight engagement of the first and second alignment sleeves can be maintained in a simple configuration by the action of the spring.
  • the pressure guidewire attachment handle further includes an end cap that engages the first end of the handle housing and has an end cap aperture for the passage of the pressure guidewire.
  • the pressure guide wire extends through the end cap aperture to the first end of the handle housing, the end cap being capable of closing the engagement portion of the pressure guide wire and the handle housing at the first end of the handle housing.
  • the end cap and the handle housing are each provided with a blocking protrusion that blocks the end cap from coming off the handle housing.
  • the relative position of the end cap to the handle housing can be defined by a simple structure.
  • the end cap in operation, can be in different positions relative to the handle housing, and the presence of the blocking protrusion can ensure that the relative position of the end cap and the handle housing is within a predetermined range without the end cap being too far away from the handle housing Even the problem of falling off it.
  • the handle housing also has a clamping mechanism that is capable of clamping or relaxing the pressure guidewire depending on the position of the end cap relative to the handle housing.
  • the operational convenience of the pressure guide wire connecting handle can be effectively improved.
  • the operator can change the state of the clamping mechanism by simply changing the position of the end cap relative to the handle housing such that the pressure guide wire is clamped or released.
  • the clamping mechanism is a slitted silicone block disposed within the first end of the handle housing, the slit extending through the silicone block.
  • the pressure guide wire connecting handle of the present invention has various advantages.
  • the slitted silicone block disposed within the first end of the handle housing can function to seal the handle housing due to the material properties of the silicone block itself such that the slit tends to close.
  • the slitted silicone block can squeeze the pressure guide wire without external force, thereby maintaining the position of the pressure guide wire relative to the handle housing.
  • the material properties of the silicone block are such that it does not scratch the outer surface of the pressure guide wire, thereby effectively protecting the coating on the outer surface of the pressure guide wire, and also acts as a dust remover on the outer surface of the pressure guide wire.
  • the silicone block is inexpensive, easy to acquire, and easy to process, so that the solution achieves a variety of technical effects in a simple and cost effective manner.
  • the end cap has an extension disposed toward the slit of the silicone block such that the extension does not extend into the slit when the end cap is in the first position relative to the handle housing And the slit is closed to clamp the pressure guide wire; when the end cap is in the second position relative to the handle housing, the extension extends into the slit to at least partially distract the incision.
  • a simplified one-hand operation of the pressure wire connecting handle can be achieved. Specifically, when the end cap is pressed toward the silicone block, the extension of the end cap enters the slit of the silicone block and the slit is opened, so that the pressure guide wire can more easily enter the longitudinal direction of the handle shell from the slit of the silicone block. hole.
  • the pressure guide wire reaches a predetermined position in the handle housing and engages with the reserved optical fiber, the pressure on the end cover can be relaxed to allow the extension of the end cover to leave the slit of the silicone block, so that the slit of the silicone block is automatically closed.
  • the silicone block automatically clamps the pressure guide wire by its own deformation, maintaining the engagement of the pressure guide wire with the reserved fiber.
  • the end cover When the pressure guide wire needs to be detached from the pressure wire connecting handle, the end cover may also be pressed toward the silicone block, the extension of the end cover enters the slit of the silicone block, and the slit is opened, so that the pressure guide wire is The silicone block is released for easier removal from the handle housing.
  • the slit is a cross-shaped slit
  • the silica gel block having a cross-shaped slit is easy to process.
  • the end cap is threadedly engaged with the first end of the handle housing.
  • the position of the end cap relative to the handle housing can be changed by rotating the end cap, thereby causing the clamping mechanism to clamp or loosen the pressure guide wire, which has good operational convenience and controllability.
  • the clamping mechanism is a clamping portion extending from the end cap into the first end of the handle housing, the clamping portion having a tapered outer surface and being tapered outwardly The surface engages the inclined inner wall of the first end such that the clamping portion clamps the pressure guide due to the pressing of the inclined inner wall when the movement of the end cap relative to the handle housing causes the clamping portion to move toward the inclined inner wall wire.
  • a simplified one-hand operation of the pressure wire connecting handle can be achieved.
  • the clamping portion moves toward the handle housing, and the inclined inner wall of the handle housing presses the clamping portion such that the clamping portion clamps the pressure guide wire.
  • the clamping portion moves away from the housing.
  • the clamping portion flares outwardly, thereby releasing the pressure guide wire.
  • the clamping mechanism is a through-hole silicone block disposed in the first end of the handle housing, the silicone block having a tapered outer surface and tapered The outer surface engages the inclined inner wall of the first end such that the silicone block clamps the pressure guide wire due to the squeezing of the inclined inner wall.
  • the pressure guide wire connecting handle of the present invention has various advantages.
  • the material properties of the silicone block are such that it does not scratch the outer surface of the pressure guide wire, thereby effectively protecting the outer surface of the pressure guide wire, and also acts as a dust remover on the outer surface of the pressure guide wire.
  • the solution has good operational convenience: as the end cover is screwed toward the handle housing, the end cover pushes the silicone block toward the handle housing, so that the inclined inner wall of the handle housing presses the silicone block, so that the silicone block Deformation and clamping of the pressure guidewire; when the pressure guidewire needs to be relaxed, the end cap is only required to be screwed away from the handle housing, and the silicone block will return to its original shape, thereby releasing the pressure guidewire.
  • the silicone block due to the material properties of the silicone block itself, it can function to effectively seal the handle housing.
  • the silicone block is inexpensive, easy to acquire, and easy to process, so that the solution achieves a variety of technical effects in a simple and cost effective manner.
  • the present invention also provides a medical device comprising a pressure guidewire, a demodulation instrument, and a pressure guidewire attachment handle having one or more of the foregoing features for connecting a pressure guidewire and a demodulation instrument.
  • the present invention also provides a docking assembly comprising a first alignment sleeve and a second alignment sleeve, wherein the first alignment sleeve has a stepped through hole, and the stepped through hole is The large diameter portion is for receiving a portion of the pressure guide wire, the smaller diameter portion of the stepped through hole for receiving and retaining the reserved fiber, the second alignment sleeve having a longitudinal center for receiving the interface cable
  • the through holes, the through holes of the first alignment sleeve and the second alignment sleeve are aligned with each other in the same center.
  • Figure 1 illustrates an exemplary embodiment of a docking assembly for a pressure wire attachment handle
  • FIG. 1 shows the docking assembly of Figure 1 with an interface cable installed
  • Figure 3 illustrates an exemplary embodiment of a pressure wire attachment handle
  • Figure 4 illustrates another exemplary embodiment of a pressure guidewire attachment handle
  • Figure 5 illustrates another exemplary embodiment of a pressure guidewire attachment handle.
  • a pressure guidewire attachment handle is used to establish a connection between the pressure guidewire and the demodulation instrument to, for example, relay an optical signal from a pressure sensor of the pressure guidewire to a demodulation instrument.
  • the pressure guidewire connection handle enables alignment and connection between the pressure guidewire and the interface cable connected to the demodulation instrument.
  • Figure 1 shows the docking assembly of the pressure wire connecting handle.
  • the docking assembly includes a first alignment sleeve 1 and a second alignment sleeve 4 that are aligned with each other in a center. Both the first alignment sleeve 1 and the second alignment sleeve 4 can be made of ceramic.
  • the first alignment sleeve 1 is generally cylindrical and has a stepped through hole.
  • the larger diameter portion 2 of the stepped through hole is for receiving a portion of the pressure guide wire 13, and the smaller diameter portion 3 of the stepped through hole is for receiving and holding the reserve fiber 6.
  • the larger diameter portion 2 has an inner diameter of 355 microns to receive a correspondingly sized pressure guide wire 13.
  • a reserved fiber 6 is disposed in the smaller diameter portion 3, as shown in FIG.
  • the reserved optical fiber 6 can be fixed in the smaller diameter portion 3 by an adhesive.
  • the second alignment sleeve 4 is generally cylindrical and has a longitudinal center through hole.
  • the longitudinal center through hole is for receiving an interface cable 7 (shown in FIG. 2) connected to the demodulation instrument.
  • the stepped through holes of the first alignment sleeve 1 and the longitudinal center through holes of the second alignment sleeve 4 are coaxially arranged and communicate with each other.
  • the pressure guide wire 13 is partially received in the larger diameter portion 2 of the stepped through hole to engage one end of the reserved optical fiber 6, and the interface cable 7 is partially accommodated in the second alignment sleeve
  • the longitudinal center of the barrel 4 is open and engages the other end of the reserved fiber 6, so that a signal is transmitted from the pressure guide 13 through the reserved fiber 6 to the interface cable 7 for further transfer to the demodulation instrument.
  • both ends of the stepped through hole of the first alignment sleeve 1 are expanded to facilitate the insertion of the pressure guide wire 13 and the interface cable 7.
  • the pressure guidewire attachment handle also includes a handle housing 8, wherein Figures 3, 4, 5 respectively illustrate an exemplary embodiment of the handle housing 8 having a different configuration.
  • the handle housing 8 can be made of ABS material.
  • the handle housing 8 can be generally elongated in shape that houses the docking assembly and has a longitudinal bore that extends to the docking assembly.
  • the specific shape of the handle housing 8 is not limited to the case shown in Figs. 3-5. Wherein the longitudinal holes are aligned with the stepped through holes of the first alignment sleeve 1 and the longitudinal center through holes of the second alignment sleeve 4.
  • the pressure guide wire 13 can extend from the first end 16 of the handle housing 8 along the longitudinal bore of the handle housing 8 into the larger diameter portion 2 of the first alignment sleeve 1 such that the fiber of the pressure guide wire 13
  • the end faces are aligned and joined to one of the fiber end faces of the reserved fiber 6.
  • the interface cable 7 extends from the second end 17 of the handle housing 8 along the longitudinal bore of the handle housing 8 into the longitudinal center through bore of the second alignment sleeve 4 of the docking assembly such that the fiber of the interface cable 7
  • the end face is aligned and joined to the other fiber end face of the reserved fiber 6. That is, the signal path of the pressure guide wire 13 to the interface cable 7 is achieved.
  • the docking assembly further includes a spring 5 that abuts between the flange of the second alignment sleeve 4 and the inner shoulder of the handle housing 8 to position the second alignment sleeve 4 Pressed toward the first alignment sleeve 1.
  • the flange of the second alignment sleeve 4 may be part of the second alignment sleeve 4 or an additional component secured thereto.
  • the pressure guidewire attachment handle also includes an end cap for mating to the handle housing 8, wherein Figures 3, 4, 5 respectively illustrate an exemplary embodiment of an end cap having a different configuration.
  • the end cap engages the first end 16 of the handle housing 8 and has a central through bore that allows the pressure guide wire 13 to pass.
  • the end cap and the handle housing 8 are each provided with blocking protrusions 10, 11 that prevent the end cap from falling off the handle housing 8, wherein in the embodiment shown in Figure 3, the handle housing 8
  • the outer side wall is provided with a blocking protrusion 10 extending toward the end cover.
  • the inner side wall of the end cover is provided with a blocking protrusion 11 extending toward the handle housing 8.
  • the blocking protrusion 10 of the handle housing 8 blocks the blocking protrusion of the end cover. 11 , thereby limiting the relative position of the end cap to the handle housing 8 within a certain range, preventing the end cap 12 from falling off the handle housing 8 .
  • a portion of the end cap 12 extends into the interior of the handle housing 8 and a blocking projection 10 extending toward the end cap is provided on the inner side wall of the handle housing 8 while The outer side wall of the end cap is provided with a blocking projection 11 extending toward the handle housing 8, thereby defining the relative position of the end cap and the handle housing 8 within a certain range, preventing the end cap 12 from coming off the handle housing 8.
  • the handle housing 8 also has a clamping mechanism that is capable of clamping or relaxing the pressure guide wire 13 depending on the position of the end cap 12 relative to the handle housing 8.
  • the clamping mechanism is a slitted silicone block 9 disposed within the first end 16 of the handle housing 8 that extends through the silicone block 9.
  • the clamping mechanism is a clamping portion 18 that extends from the end cap 12 into the first end 16 of the handle housing 8, the clamping portion 18 having a tapered outer surface, And the tapered inner wall 14 of the first end portion 16 is joined by its tapered outer surface such that the clamping portion 18 clamps the pressure guide wire 13 due to the pressing of the inclined inner wall.
  • the clamping portion 18 has a tapered outer surface that coincides with the inclined angle of the inclined inner wall 14 of the first end portion 16.
  • the clamping mechanism is a through-hole silicone block 9 disposed in the first end 16 of the handle housing 8, the silicone block 9 having a tapered outer surface, And the tapered inner wall 14 of the first end portion 16 is joined by its tapered outer surface, so that the silicone block 9 clamps the pressure guide wire 13 due to the pressing of the inclined inner wall.
  • the end cap is nested outside of the first end 16 of the handle housing 8.
  • the first end portion 16 of the handle housing 8 is provided with a silicone block 9 with a slit, preferably a cross-shaped slit.
  • the slit extends through the silicone block 9 to allow the pressure guide wire 13 to pass through. Due to the material properties of the silicone block 9, the slit of the silicone block 9 is closed or substantially closed (e.g., forming a smaller gap) when subjected to an external force.
  • the pressure guide wire 13 or other component can open the slit of the silicone block 9 and pass through the silicone block 9 into the interior of the handle housing 8.
  • the silicone block 9 can have a stepped profile as shown in FIG. 3 to be easily received within a corresponding cavity within the first end 16 of the handle housing 8.
  • the outer shape of the silicone block 9 is not limited to this.
  • the end cap also has an extension 21 disposed toward the slit of the silicone block 9.
  • the extension 21 of the end cap enters the slit of the silicone block 9, and the slit is opened, so that the pressure guide wire 13 can more easily enter the handle housing from the slit of the silicone block 9. 8 longitudinal holes.
  • the pressure guide wire 13 When the pressure guide wire 13 reaches a predetermined position within the handle housing 8 and engages with the reserved optical fiber 6, the pressure on the end cover can be relaxed to allow the extension 21 of the end cover to leave the slit of the silicone block 9, such that The slit of the silicone block 9 is automatically closed, and the silicone block 9 automatically clamps the pressure guide wire 13 by its own deformation, keeping the pressure guide wire 13 engaged with the reserved fiber 6.
  • the end cap can also be pressed toward the silicone block 9, the extension 21 of the end cap enters the slit of the silicone block 9, and the slit is opened. The pressure guide wire 13 is released by the silicone block 9 and can be more easily detached from the handle housing 8.
  • the first end 16 of the handle housing 8 forms a cavity that receives a portion of the end cap.
  • the end cap has a threaded portion 15 that threadably engages the first end 16 of the handle housing 8.
  • the end cap is provided with external threads that cooperate with the internal threads of the handle housing 8.
  • the end cap has a clamping portion 18 that extends into the first end portion 16 of the handle housing 8, the clamping portion 18 having a tapered outer surface and with the tapered outer surface first end The inclined inner wall 14 of 16.
  • the tapered shape of the clamp portion 18 coincides with the inclined angle of the inclined inner wall of the handle housing 8, so that the clamp portion 18 can slide along the inclined inner wall of the handle housing 8 and be deformed.
  • the clamping portion 18 can include a plurality of clamping jaws, such as four clamping jaws. As the end cap is screwed toward the handle housing 8, the clamping portion 18 moves toward the handle housing 8, and the inclined inner wall of the handle housing 8 presses the clamping portion 18 such that the clamping portion 18 grips the pressure guide wire 13 . When it is desired to relax the pressure guide wire 13, it is only necessary to screw the end cap away from the handle housing 8 so that the clamping portion 18 moves away from the housing. As the clamping portion 18 is disengaged from the inclined inner wall of the handle housing 8, the clamping portion 18 is flared outwardly, thereby releasing the pressure guide wire 13.
  • the first end 16 of the handle housing 8 forms a cavity that receives a portion of the end cap.
  • the end cap has a threaded portion that threadably engages the first end 16 of the handle housing 8.
  • the end cap is provided with external threads that cooperate with the internal threads of the handle housing 8.
  • the first end portion 16 of the handle housing 8 is provided with a silicone block 9 with a through hole.
  • the pressure guide wire 13 passes through the end cap and passes through the through hole of the silicone block 9 and enters the inside of the handle housing 8.
  • the silicone block 9 has a tapered outer surface and engages the angled inner wall 14 of the first end 16 with its tapered outer surface. That is, the tapered shape of the silicone block 9 coincides with the inclined angle of the inclined inner wall 14 of the handle housing 8, so that the silicone block 9 can slide along the inclined inner wall 14 of the handle housing 8.
  • the end cap pushes the silicone block 9 toward the handle housing 8, so that the inclined inner wall 14 of the handle housing 8 presses the silicone block 9 so that the silicone block 9 is deformed and clamped Pressure guide wire 13.
  • the pressure guide wire 13 needs to be relaxed, it is only necessary to screw the end cap away from the handle housing 8, and the silicone block 9 will return to its original shape, thereby releasing the pressure guide wire 13.
  • the through-hole end of the silicone block 9 is provided with an expansion port 19 to facilitate insertion of the pressure guide wire 13 into the through hole of the silicone block 9.
  • the end cap 12 is provided with a non-slip groove 20 to facilitate the operator to rotate the end cap.
  • FIGS. 3-5 respectively illustrate possible embodiments of the pressure wire connecting handle of the present invention, but the scope of the present invention is not limited thereto.
  • the various technical features shown in Figures 3-5 can be combined or replaced with one another to form other embodiments, unless repeated to each other.
  • the pressure guidewire attachment handle of the present invention can be applied to medical devices having a pressure guidewire and a demodulation instrument for connecting a pressure guidewire to a demodulation instrument.

Abstract

L'invention concerne une poignée de connexion de fil de guidage de pression, un dispositif médical ayant la poignée, et un ensemble accueil qui peut être utilisé pour la poignée de connexion de fil de guidage de pression. La poignée de connexion de fil de guidage de pression comprend un ensemble accueil et un boîtier de poignée (8). L'ensemble accueil comprend un premier manchon d'alignement (1) et un second manchon d'alignement (4); le premier manchon d'alignement (1) est pourvu d'un trou traversant étagé, une partie de plus grand diamètre du trou traversant étagé (2) étant utilisée pour recevoir une partie d'un fil de guidage de pression (13), tandis qu'une partie de plus petit diamètre (3) du trou traversant étagé est utilisée pour recevoir et maintenir une fibre optique réservée (6); le second manchon d'alignement (4) est pourvu d'un trou traversant central longitudinal utilisé pour recevoir un câble d'interface (7), et les trous traversants du premier manchon d'alignement (1) et du second manchon d'alignement (4) sont alignés de manière concentrique les uns avec les autres. Le boîtier de poignée (8) reçoit l'ensemble accueil et est pourvu d'un trou longitudinal s'étendant jusqu'à l'ensemble accueil, le trou longitudinal étant aligné avec le trou traversant étagé du premier manchon d'alignement (1) et le trou traversant central longitudinal du second manchon d'alignement (4).
PCT/CN2018/086744 2018-05-14 2018-05-14 Ensemble accueil, poignée de connexion de fil de guidage de pression et dispositif médical ayant une poignée WO2019218120A1 (fr)

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PCT/CN2018/086744 WO2019218120A1 (fr) 2018-05-14 2018-05-14 Ensemble accueil, poignée de connexion de fil de guidage de pression et dispositif médical ayant une poignée

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PCT/CN2018/086744 WO2019218120A1 (fr) 2018-05-14 2018-05-14 Ensemble accueil, poignée de connexion de fil de guidage de pression et dispositif médical ayant une poignée

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