CN213850625U

CN213850625U - Disposable aseptic ureter guide sheath

Info

Publication number: CN213850625U
Application number: CN202022697162.9U
Authority: CN
Inventors: 范海斌
Original assignee: Jiangxi Inventor Technology Co ltd
Current assignee: Jiangxi Inventor Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-08-03
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a disposable aseptic ureter guide sheath, including returning vortex chamber suction head main part, suction joint, guide sheath, pressure monitoring hole, expansion pipe, sealed pad, handle, back lid, pressure detection joint, fill joint, bracelet, liquid forced induction passageway and liquid and fill the passageway. The utility model has the advantages that: at ureter guide sheath during operation, pressure in the organ is detected through pressure monitoring hole real-time detection, in time adjust intracavity pressure through the adjustment suction ability of infusing, prevent that intracavity pressure from too big causing the influence to the patient, operation safe and reliable, spacing ball is when passing through external force pulling pull wire, move from the spacing inslot to receiving the inslot, when spacing inslot, can prevent that the expansion pipe from removing, after removing to receiving the groove, can upwards mention the expansion pipe and take out, the medical personnel operation of being convenient for uses, make the expansion pipe can take off according to the demand, so that stretch into the detecting head and detect.

Description

Disposable aseptic ureter guide sheath

Technical Field

The utility model relates to a ureter guide sheath specifically is a aseptic ureter guide sheath of disposable, belongs to the accessory equipment technical field of organ operation.

Background

The ureter soft lens guide sheath is mainly used for establishing an operation channel for treating relevant operations when the ureter is clinically used for ureter stenosis, adhesion, obstruction, blockage and calculus, and an endoscope, a laser optical fiber, a calculus removing instrument or an operation cable and the like are led in through the channel.

200810197442.4 relates to a combined soft-hard ureteroscope, which comprises a cylindrical hard sheath, a soft lens, a handle and a rotary joint, and is characterized in that a soft lens fixing sleeve fixedly connected with the soft lens is sleeved outside the rear section of the soft lens, the soft lens fixing sleeve and the soft lens penetrate into an inner hole of the hard sheath together, a through hole is arranged in the handle, the through hole of the handle is sleeved outside the hard sheath, an axial positioning device is arranged between the hard sheath and the through hole of the handle, the rotary joint is fixed on the outer wall of the hard sheath, and a fixing mechanism capable of fixing/loosening the handle and the soft lens fixing sleeve is arranged on the handle.

201220133059.4 relates to a ureteral catheter sheath, comprising: an introducer sheath provided with an expansion channel for introducing a medical instrument; an expansion tube cooperating with the introducer sheath to expand the ureter; a fixing clip for fixing the expansion tube, the fixing clip being connected to the expansion tube; and a tray.

201320047718.7 discloses a flexible ureteroscope guide sheath kit, which comprises an expansion tube, wherein one end of the expansion tube is provided with a tip part, the other end of the expansion tube is provided with an instrument implantation end part and a fixing clamp, a guide sheath is sleeved on the expansion tube and provided with a clamping part. The ureteroscope guide sheath kit is additionally provided with a clamping component which is convenient to operate at the hand-held position of the guide sheath on the basis of the original ureteroscope guide sheath kit.

The ureteral introducing sheath in the prior art cannot measure pressure, and is easy to cause water poisoning due to excessive water pressure, so that further improvement is needed.

201420055134.9 describes a ureteral introducing sheath capable of measuring pressure, which comprises a perfusion connector main body, a sealing cap, a suction pipeline, a sheath pipeline and a pressure sensor, wherein the pressure sensor is fixed at the end of the sheath pipeline, and a signal line connected with the pressure sensor is fixed in a signal channel on the inner side surface of the sheath pipeline, so that the pressure in an organ can be measured at any time while the sheath pipeline is working, and the injury to the patient caused by the overlarge pressure in the cavity can be prevented. However, in practical applications, based on the fact that the diameter of the sheath conduit is very small (generally less than 4mm), the current technology and process level of the pressure sensor cannot be really realized due to the size, the water resistance and the like of the pressure sensor, and meanwhile, the method for directly installing the sensor at the tail end cannot avoid the operation risk caused by the fact that the sensor falls off in a cavity due to accidental factors in the operation process.

201510180226.9 describes a ureter guide-in sheath with real-time pressure detection and adsorption capacity, including filling the joint, sealed lid, attract the pipeline, pressure sensing passageway and ureteral sheath pipe-line are installed at filling the joint other end, inhale through the pipeline and install in filling the joint side, and be linked together with filling the joint inside filling, be equipped with a filling pressure sensing passageway in that fills joint and ureteral sheath pipeline lateral wall altogether, be connected with pressure detection on filling the pressure sensing passageway of joint one side and connect, pressure detection connects joinable external pressure sensor, be equipped with the pressure coupling hole at the end of the filling pressure sensing passageway of ureteral sheath pipeline one side. However, the inner diameter of the whole perfusion channel in the perfusion joint is consistent with the inner diameter of the ureteral sheath pipeline, so that stones are easily blocked at the intersection of the suction tube, and a single pressure coupling hole has the risk of blocking, so that the intra-cavity pressure measurement is inaccurate, and the operation risk is caused.

201820501605.2 discloses a disposable sterile ureter guide sheath, which comprises a swirling cavity suction head main body, a swirling cavity suction head rear cover, a handle, a guide outer sheath, a pressure monitoring hole, an expander, a suction pipeline, a sealing cap, a pressure detection joint, a hand ring and a liquid pressure sensing channel. Can real-time feedback organ intracavity pressure to the flow that control was filled and was attracted, the ureter that has real-time pressure detection and suction ability of accessible main part control was filled and was attracted the flow simultaneously leads into the sheath, in the work of guide sheath, can respond to the pressure in the organ constantly by liquid pressure sensing channel, in time adjust pressure in the use of being convenient for, prevent that intracavity pressure is too big from causing the injury to the patient, nevertheless need to move back the mirror operation when the calculus is great, at this moment, the endoscope withdraws from, no liquid is filled, intracavity makes calculus suction difficult because of liquid is not enough, it is not in order, the extension operation time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a disposable sterile ureteral guide sheath for solving the problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a disposable sterile ureteral guide sheath comprises a swirling cavity suction head main body, a suction joint, a guide outer sheath, a pressure monitoring hole, an expansion pipe, a sealing gasket, a handle, a rear cover, a pressure detection joint, a perfusion joint, a hand ring, a liquid pressure sensing channel, a liquid perfusion channel, a transparent observation mirror, a scale mark, a traction line, a pull ring, a limiting ball, a limiting groove and a containing groove; the back-swirling cavity suction head main body is of a conical structure from the bottom to the end of an inner cavity, the suction joint, the guide outer sheath, the pressure detection joint and the perfusion joint are connected to the back-swirling cavity suction head main body, the sealing gasket and the rear cover are fixed at the top of the back-swirling cavity suction head main body, the suction joint, the perfusion joint and the pressure detection joint are formed on the side edge of the back-swirling cavity suction head main body, a liquid pressure sensing channel is arranged on the guide outer sheath, a bracelet is connected below the pressure detection joint and is communicated with the liquid pressure sensing channel, the liquid perfusion channel is communicated with the perfusion joint, the back-swirling cavity suction head main body is connected with the guide outer sheath, the handle and the expansion pipe are connected into a whole, a transparent observation mirror is arranged on the side surface of the back-swirling cavity suction head main body, and another scale line is arranged on the surface of the guide outer sheath, the traction wire is arranged in an inner cavity of the guide outer sheath, one end of the traction wire penetrates through a gap formed in the expansion tube and is connected with the limiting ball, the other end of the traction wire penetrates through the rear cover and is connected with the pull ring, the pull ring is arranged in the handle, the limiting ball is clamped in a limiting groove formed in the inner wall of the bottom end of the guide outer sheath, and a containing groove corresponding to the limiting groove is formed in the side edge of the top end of the expansion tube.

Preferably, in order to make the expansion pipe take off as required to stretch into the probe for detection, the limiting ball, the limiting groove and the accommodating groove form a traction retraction mechanism of the expansion pipe and are symmetrically distributed on two sides of the expansion pipe.

Preferably, in order to facilitate the operation and use of medical staff, the limiting ball moves into the containing groove from the limiting groove when pulling the traction wire through external force.

Preferably, in order to avoid intracavity tissue and rubble jam siphunculus to can detect out accurate reliable data, the end of liquid pressure-sensitive passageway is equipped with five pressure monitoring holes, and pressure monitoring hole is the big minor tapered platform column structure of internal diameter of external diameter.

Preferably, in order to attract and play a sealing role, a sealing rubber ring is arranged at the position, where the rear cover penetrates through the gap of the traction wire.

Preferably, in order to fix the handle on the swirling cavity suction head main body, the handle and the rear cover are provided with a hook type structure for connection.

Preferably, in order to facilitate the centre gripping of operation, realize one-hand operation, swirl chamber suction head main part below is equipped with the bracelet that is the symmetry and sets up.

Preferably, when the calculus is too large and needs to be removed from the endoscope, the calculus in the cavity is difficult to suck due to no liquid perfusion, and in order to suck the calculus more quickly and smoothly, the perfusion joint of the liquid perfusion channel arranged on the ureteral guide sheath can be connected with the perfusion joint of the endoscope through a pipeline or a three-way valve.

The utility model has the advantages that: the disposable sterile ureteral guide sheath is reasonable in design, and the limiting balls, the limiting grooves and the accommodating grooves form a traction and retraction mechanism of the expansion tube and are symmetrically distributed on two sides of the expansion tube, so that the expansion tube can be taken down as required to conveniently extend into a probe for detection; when the traction wire is pulled by external force, the limiting ball moves into the containing groove from the limiting groove, the expansion pipe can be prevented from moving in the limiting groove, and after the expansion pipe moves into the containing groove, the expansion pipe can be lifted upwards and taken out, so that the expansion pipe is convenient for medical personnel to operate and use; five pressure monitoring holes are formed in the tail end of the liquid pressure sensing channel, the pressure monitoring holes are of a conical table-shaped structure with large outer diameter and small inner diameter, the pressure monitoring holes penetrate from the inner side to the outer side of the sheath, the situation that tissues in the cavity and broken stones block the through pipe is avoided, and accurate and reliable data can be monitored; the guide outer sheath is provided with a liquid filling channel which is connected with a filling connector, so that the difficulty in sucking out the calculus due to insufficient liquid in the cavity when the calculus particles are large and the endoscope needs to be withdrawn is avoided, the filling connector can be connected with the filling connector of the endoscope through a pipeline and a three-way valve, and an operator can select the channel for filling when the endoscope does not need to be withdrawn; the back cover is connected with the handle through a hook-type structure, and the handle is connected with the swirling cavity suction head main body into a whole to avoid falling off; the bracelet is arranged below the suction head of the swirling cavity, so that the clamping operation is convenient, the one-hand operation is realized, a series of risks caused by unstable operation are greatly reduced, and the tube placing operation time is effectively shortened.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a structural diagram of the liquid pressure sensing channel and the liquid filling channel of the present invention;

fig. 4 is the schematic view of the installation structure of the limiting ball of the present invention.

In the figure: 1. the vortex cavity suction head comprises a vortex cavity suction head main body, 2, a suction joint, 3, a guide outer sheath, 4, a pressure monitoring hole, 5, an expansion pipe, 6, a sealing gasket, 7, a handle, 8, a rear cover, 9, a pressure detection joint, 10, a perfusion joint, 11, a hand ring, 12, a liquid pressure sensing channel, 13, a liquid perfusion channel, 14, a transparent observation mirror, 15, a scale mark, 16, a traction line, 17, a pull ring, 18, a limiting ball, 19, a limiting groove, 20 and a containing groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a disposable sterile ureteral guide sheath comprises a swirling cavity suction head main body 1, a suction connector 2, a guide outer sheath 3, a pressure monitoring hole 4, an expansion tube 5, a sealing gasket 6, a handle 7, a rear cover 8, a pressure detection connector 9, a perfusion connector 10, a hand ring 11, a liquid pressure sensing channel 12, a liquid perfusion channel 13, a transparent observation mirror 14, a scale line 15, a traction line 16, a pull ring 17, a limit ball 18, a limit groove 19 and a storage groove 20; the back-swirling cavity suction head main body 1 is of a conical structure from the bottom of an inner cavity to the end, the suction connector 2, the guide outer sheath 3, the pressure detection connector 9 and the perfusion connector 10 are all connected to the back-swirling cavity suction head main body 1, the sealing gasket 6 and the rear cover 8 are all fixed at the top of the back-swirling cavity suction head main body 1, the suction connector 2, the perfusion connector 10 and the pressure detection connector 9 are formed on the side edge of the back-swirling cavity suction head main body 1, the guide outer sheath 3 is provided with a liquid pressure sensing channel 12, a hand ring 11 is connected below the pressure detection connector 9, the pressure detection connector 9 is communicated with the liquid pressure sensing channel 12, the liquid perfusion channel 13 is communicated with the perfusion connector 10, the back-swirling suction cavity suction head main body 1 is connected with the guide outer sheath 3, the handle 7 is connected with the expansion pipe 5 into a whole, and a transparent observation mirror 14 is arranged on the other side surface of the back-swirling cavity suction head main body 1, the surface of the guide sheath 3 is provided with scale marks 15, the traction wire 16 is arranged in an inner cavity of the guide sheath 3, one end of the traction wire 16 penetrates through a gap formed in the expansion tube 5 and is connected with a limiting ball 18, the other end of the traction wire 16 penetrates through the rear cover 8 and is connected with a pull ring 17, the pull ring 17 is arranged in the handle 7, the limiting ball 18 is clamped in a limiting groove 19 formed in the inner wall of the bottom end of the guide sheath 3, and the side edge of the top end of the expansion tube 5 is provided with a containing groove 20 corresponding to the limiting groove 19.

The limiting balls 18, the limiting grooves 19 and the accommodating grooves 20 form a traction and retraction mechanism of the expansion pipe 5 and are symmetrically distributed on two sides of the expansion pipe 5, so that the expansion pipe 5 can be taken down as required to conveniently extend into a probe for detection; when the traction wire 16 is pulled by an external force, the limiting ball 18 moves into the containing groove 20 from the limiting groove 19, when the limiting ball moves into the limiting groove 19, the expansion pipe can be prevented from moving, and when the expansion pipe moves into the containing groove, the expansion pipe can be lifted upwards and taken out, so that the medical staff can operate and use the expansion pipe conveniently; the liquid pressure sensing channel 12 is arranged on the guide sheath 3, so that the pressure in the cavity can be detected in real time while the guide sheath 3 works, the injury to a patient caused by overlarge pressure is prevented, and the normal work of the guide sheath 3 is not influenced; the pressure detection joint 9 measures pressure by adopting a liquid pressure measurement principle, is practical and feasible compared with the prior art, is easy to implement, solves the contradiction between insufficient perfusion flow of minimally invasive intra-cavity calculus removal and high intra-cavity pressure, and obviously improves the safety rate and calculus removal efficiency of the operation; the tail end of the liquid pressure sensing channel 12 is provided with five pressure monitoring holes 4, the pressure monitoring holes 4 are in a conical table-shaped structure with large outer diameter and small inner diameter, and the pressure monitoring holes penetrate from the inner side to the outer side of the sheath, so that the blockage of the through pipe by the intracavity tissues and the broken stones is avoided, and accurate and reliable data can be monitored; a sealing rubber ring is arranged at the gap of the rear cover 8 penetrating through the traction wire 16, and plays a role in sealing during suction; the guide outer sheath 3 is provided with a liquid filling channel 12 which is connected with a filling connector 10, so that the difficulty in sucking out the calculus due to insufficient liquid in the cavity when the calculus particles are large and the endoscope needs to be withdrawn is avoided, the filling connector 10 can be connected with the filling connector of the endoscope through a pipeline and a three-way valve, and an operator can select the channel for filling when the endoscope does not need to be withdrawn; the rear cover 8 is connected with the handle 7 through a hook type structure, and the handle 7 is connected with the swirling cavity suction head main body 1 into a whole to avoid falling off; the suction head main body 1 below of the swirling cavity is provided with the bracelets 11 which are symmetrically arranged, so that the clamping of the operation is convenient, the one-hand operation is realized, a series of risks caused by unstable operation are greatly reduced, and the time of the tube placing operation is effectively shortened.

The working principle is as follows: when the disposable sterile ureteral guide sheath is used, the disposable sterile ureteral guide sheath can be matched with a medical perfusion suction platform (application number: CN 201410041761.1); during the use, the platform control peristaltic pump is via "liquid perfusion tube-sheath" passageway to intracavity perfusion liquid, and pressure sensor passes through pressure measurement joint 9 real-time measurement intracavity liquid pressure to convert intracavity pressure to signal of telecommunication feedback to platform, the inside negative pressure pump work of real-time, intelligent ground control of platform according to the intracavity pressure that measures, form the negative pressure in calculus collection bottle and collection container, intracavity waste liquid is drawn out by the negative pressure with the rubble, thereby reach the purpose of automatic adjustment intracavity pressure.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A disposable sterile ureteral access sheath, its characterized in that: the device comprises a swirling cavity suction head main body (1), a suction joint (2), a guide outer sheath (3), a pressure monitoring hole (4), an expansion pipe (5), a sealing gasket (6), a handle (7), a rear cover (8), a pressure detection joint (9), a perfusion joint (10), a hand ring (11), a liquid pressure sensing channel (12), a liquid perfusion channel (13), a transparent observation mirror (14), a scale mark (15), a traction line (16), a pull ring (17), a limiting ball (18), a limiting groove (19) and a containing groove (20); the back-swirling cavity suction head main body (1) is of a conical structure from the bottom of an inner cavity to the end, the suction connector (2), the guide outer sheath (3), the pressure detection connector (9) and the perfusion connector (10) are connected to the back-swirling cavity suction head main body (1), the sealing gasket (6) and the rear cover (8) are fixed to the top of the back-swirling cavity suction head main body (1), the suction connector (2), the perfusion connector (10) and the pressure detection connector (9) are formed on the side edge of the back-swirling cavity suction head main body (1), a liquid pressure sensing channel (12) is arranged on the guide outer sheath (3), a hand ring (11) is connected below the pressure detection connector (9), the pressure detection connector (9) is communicated with the liquid pressure sensing channel (12), the liquid perfusion channel (13) is communicated with the perfusion connector (10), the back-swirling cavity suction head main body (1) is connected with the guide outer sheath (3), the handle (7) and the expansion tube (5) are connected into a whole, a transparent observation mirror (14) is arranged on the other side face of the swirling cavity suction head main body (1), scale marks (15) are arranged on the surface of the guide outer sheath (3), the pull wire (16) is arranged in an inner cavity of the guide outer sheath (3), one end of the pull wire (16) penetrates through a gap formed in the expansion tube (5) and is connected with a limiting ball (18), the other end of the pull wire (16) penetrates through the rear cover (8) and is connected with a pull ring (17), the pull ring (17) is arranged in the handle (7), the limiting ball (18) is clamped in a limiting groove (19) formed in the inner wall of the bottom end of the guide outer sheath (3), and a containing groove (20) corresponding to the limiting groove (19) is formed in the side edge of the top end of the expansion tube (5).

2. A single use sterile ureteral access sheath according to claim 1, wherein: the limiting balls (18), the limiting grooves (19) and the accommodating grooves (20) form a traction and retraction mechanism of the expansion pipe (5), and are symmetrically distributed on two sides of the expansion pipe (5).

3. A single use sterile ureteral access sheath according to claim 1 or 2, wherein: when the traction wire (16) is pulled by an external force, the limiting ball (18) moves into the containing groove (20) from the limiting groove (19).

4. A single use sterile ureteral access sheath according to claim 1, wherein: the tail end of the liquid pressure sensing channel (12) is provided with five pressure monitoring holes (4), and the pressure monitoring holes (4) are of a conical table-shaped structure with large outer diameter and small inner diameter.

5. A single use sterile ureteral access sheath according to claim 1, wherein: and a sealing rubber ring is arranged at the position of the rear cover (8) penetrating through the gap of the traction wire (16).

6. A single use sterile ureteral access sheath according to claim 1, wherein: the handle (7) is connected with the rear cover (8) through a clamping hook type structure.

7. A single use sterile ureteral access sheath according to claim 1, wherein: the lower part of the swirling cavity suction head main body (1) is provided with symmetrical bracelets (11).

8. A single use sterile ureteral access sheath according to claim 1, wherein: the perfusion joint (10) of the liquid perfusion channel (13) arranged on the ureteral guide sheath can be connected with the perfusion joint of the endoscope through a pipeline or a three-way valve.