CN208464197U

CN208464197U - A kind of ureter sheath with controlled deflection function

Info

Publication number: CN208464197U
Application number: CN201721509258.XU
Authority: CN
Inventors: 周均洪
Original assignee: Jiangmen Hongxiang Medical Device Technology Co Ltd
Current assignee: Jiangmen Shuotong medical equipment Technology Co., Ltd
Priority date: 2017-11-13
Filing date: 2017-11-13
Publication date: 2019-02-05
Anticipated expiration: 2027-11-13

Abstract

The utility model discloses a kind of ureter sheath with controlled deflection function, ureter sheath includes the hollow tubular sheath for operating shank and front stretching, and the tube wall for constituting the tubulose sheath has interlayer, and the interlayer is built-in with wire drawing；Tubulose sheath end is equipped with deformation section, and the operation shank is equipped with control mechanism, and the control mechanism is connect by wire drawing with the deformation section, and the deformation section is made to realize bending under the linkage of control mechanism；The utility model can realize curved deformation section by having hollow tubular ureter sheath under the linkage of control mechanism, more can accurately, effectively establish operation path, and it is safer, convenient to perform the operation；Cooperate the controlled deflection of ureterorenoscope, it can be achieved that second order buckling and multi-direction bending, reduce the blind area of ureterorenoscope simultaneously, increase effective range of operation, operation means are more effective, improve operation safety.

Description

A kind of ureter sheath with controlled deflection function

Technical field

The utility model relates to medical instrument, especially a kind of ureter sheath with controlled deflection function.

Background technique

Referring to Fig.1, left-end components are ureter sheath 1 ' (including soft sheath or hard sheath) common at present, are mainly used for through urinating Road, ureter carry out establishing channel use when Upper urinary tract operation, and purpose and effect are:

1, facilitate surgical instrument for example soft or rigid endoscope 9 enter repeatedly through ureter sheath 1 ' reach in vivo upper urinary tract into Row operation, avoiding surgical instrument, entry/exit ureter causes to damage repeatedly；

2, after establishing channel with ureter sheath 1 ', surgical instrument faster can reach Upper urinary tract operation portion through ureter sheath 1 ' It performs the operation position；

3, due to keeping getting a clear view in operation, the continuous underwent operative instrument of flushing liquor is needed to be flushed into vivo, it can be sharp Flushing liquor is drained outside body with sheath and instrument gap, prevents renal plevis high pressure from causing urine source sexuality dye and kidney injury.

But due to traditional ureter sheath 1 ', sheath is simple rigid tube body or flexible pipe body, for part ureter Serious circuitous curved patient, possibly can not go directly target position when being placed in hard sheath, and when the soft sheath being placed in is oppressed by tissue There can be offset, therefore indwelling ureter sheath 1 ' has certain difficulty in art, or even set sheath failure and influence operation safety；Separately Outside for part calyceal calculus, especially lower calyx, existing ureter sheath 1 ' can not effectively reach kidney calices always, influence to establish logical The validity in road influences safety, validity and the agility of operation.

On the other hand, it is applying surgical instrument for example soft or rigid endoscope 9 both at home and abroad at present, is being carried out through ureter sheath 1 ' When kidney surgery, the controlled deflection function that can be had by ureterorenoscope itself, realization is sought in kidney aggregation system Calculus is looked for, but it can only also swing up and down realization turning in the same plane, therefore influence hand there are certain blind area in operation Art effect；And ureterorenoscope is easy to be shifted by the compressing of tissue, and repetitive control bending is needed in operation It can correct in place, Servo Control device is be easy to cause to damage, influence operation safety and increase operation cost.

Summary of the invention

For overcome the deficiencies in the prior art, the utility model provides a kind of ureter sheath with controlled deflection function.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of ureter sheath with controlled deflection function, ureter sheath include operate shank and front stretch out it is hollow Tubulose sheath, the tube wall for constituting the tubulose sheath have interlayer, and the interlayer is built-in with wire drawing；The tubulose sheath latter end shape At deformation section, the operation shank is equipped with control mechanism, and the control mechanism is connect by wire drawing with the deformation section, makes described Deformation section realizes bending under the linkage of control mechanism.

Connected pathways is equipped in the tube wall interlayer of the tubulose sheath, the connected pathways is located at described deformation section one end Opening sealing is equipped with glass cover-slip, and internal merging has biography as system.

The interlayer can be one or more channels in the tube wall.

The control mechanism is push type spanner.

The control mechanism is rotary type knob.

The control mechanism is swing type rocking bar, and the bending direction phase of the swaying direction of the rocking bar and the deformation section Together.

The beneficial effects of the utility model are:

(1) curved deformation can be realized under the linkage of control mechanism by having hollow tubular ureter sheath latter end Section more can accurately, effectively establish operation path, and it is safer, convenient to perform the operation；

(2) controlled deflection of the controlled deflection cooperation ureterorenoscope of ureter sheath, makes to can be achieved in operation secondary curved Bent and multi-direction bending, reduces the blind area of ureterorenoscope, increases effective range of operation, and operation means are more effective, improves hand Art safety.

(3) ureter sheath of the utility model can cooperate ureterorenoscope to use, peep to reduce in ureter The corner frequency of mirror extends endoscope service life, reduces medical treatment cost.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the structural schematic diagram of existing ureter sheath and ureterorenoscope；

Fig. 2 is the first embodiment of the utility model；

Fig. 3 is the schematic cross-section of the utility model；

Fig. 4 is the schematic cross-section of the utility model another kind；

Fig. 5 is usage state diagram of the utility model in conjunction with endoscope；

Fig. 6 is the second embodiment of the utility model；

Fig. 7 is the 3rd embodiment of the utility model；

Fig. 8 is the enlarged view in Fig. 7 at A.

Specific embodiment

It is a kind of ureter sheath with controlled deflection function of the utility model referring to Fig. 2, ureter sheath 1 includes behaviour Make shank 2 and front stretching is in the soft or rigid sheath 3 of hollow tubular.In use, in surgical instrument is for example soft or rigid Sight glass 9 can be by being retained in the operation shank 2 of human external, and the sheath 3 for being placed in inside of human body enters.

Wherein, referring to Fig. 3, Fig. 4, the tube wall for constituting tubulose sheath 3 has interlayer 31, and interlayer 31 can be one in tube wall Or multiple channels, and interlayer 31 is made to be built-in with metal wire-drawing 4.And tubulose sheath end is equipped with deformation section 5, operation shank 2 is equipped with Control mechanism 6, control mechanism 6 are connect by wire drawing 4 with deformation section 5, make deformation section 5 can be real under the linkage of control mechanism 6 Now be bent, it is curved various informative, as the list of specified single direction is curved or same plane on it is upper and lower double curved or even unlimited The multi-direction bending of plane, curve form are determined by the different arragement constructions of interior metal wire drawing 4.

By the ureter sheath 1 with controlled deflection function of the utility model, hand is being carried out to the tortuous patient of ureter Art, or applied to per urethra, ureter carry out kidney surgery when, deformation section 5 can be made to realize by the adjusting of control mechanism 6 curved Song establishes effective operation path so that passing through tortuous section of ureter reaches operative site.

The ureter sheath 1 of the utility model simultaneously, can cooperate ureterorenoscope to use, to reduce in ureter The corner frequency of sight glass extends endoscope service life, reduces medical treatment cost.

In addition, ureterorenoscope 9 itself has controlled deflection function referring to Fig. 5, and according to the need in operation It wants, in conjunction with the controlled deflection function of ureter sheath 1, the starting point of ureterorenoscope 9 its controllable bending tune 91 and flat can be changed Face realizes second order buckling and multi-direction bending, reduces the blind area of ureterorenoscope, increase effective range of operation, operation means are more It is effective, raising operation safety.

Controlling curved control mechanism 6 can be for push type spanner, according to the pressing dynamics and angle of spanner, control when use The bending degree of deformation section 5, it is more intuitive controllable, it is more accurate to the position control for reaching human body needed for bending.

It is the second embodiment of the utility model referring to Fig. 6.Rotary type rotation can also be used in the control mechanism 6 of ureter sheath 1 Button structure, by the way that individually stretching or annular sleeve are realized mounted in the knob of operation shank 2 and are bent journey to deformation section 5 to operation shank 2 The control of degree, structure is more simple, and manufacturing cost is low.

In addition, being the 3rd embodiment of the utility model referring to Fig. 7.Control mechanism 6 is also swing type rocking bar, and rocking bar Swaying direction it is identical as the bending direction of deformation section 5, operate more intuitive, be avoided as much as operation error, guarantee operation Safety.

Referring to Fig. 8, further, connected pathways 7, the connected pathways 7 are equipped in the tube wall interlayer 31 of tubulose sheath 3 Opening sealing in described 5 one end of deformation section is equipped with glass cover-slip, biography picture system of the internal merging just like devices such as coherent fiber bundles System 8, to constitute visual ureter sheath.In use, the operational circumstances for protruding into intracorporal surgical instrument can be observed directly, improve Operation safety；Even for being accessible to and lesser kidney stone individually, can directly be set without ureterorenoscope cooperation Enter holmium micro optical fiber and soft ultrasonic rubble bar carries out rubble, clear stone, reduces endoscope utilization rate, reduce operation cost and difficulty.

The ureter sheath with controlled deflection function of the utility model, can more effectively establish operation path, drop Operation safety is improved in low operation blind area, and operation has a wide range of application, and has important medicine and economic significance.

Claims

1. a kind of ureter sheath with controlled deflection function, ureter sheath (1) includes that operation shank (2) and front are stretched out Hollow tubular sheath (3), it is characterised in that: the tube wall for constituting the tubulose sheath (3) has interlayer (31), the interlayer (31) It is built-in with wire drawing (4)；Tubulose sheath (3) latter end forms deformation section (5), and the operation shank (2) is equipped with control mechanism (6), the control mechanism (6) is connect by wire drawing (4) with the deformation section (5), makes the deformation section (5) in control mechanism (6) bending is realized under linkage.

2. ureter sheath according to claim 1, it is characterised in that: in the tube wall interlayer (31) of the tubulose sheath (3) Equipped with connected pathways (7), the opening sealing that the connected pathways (7) is located at the deformation section (5) one end is equipped with glass cover-slip, Its internal merging has biography as system (8).

3. ureter sheath according to claim 1, it is characterised in that: the interlayer (31) can be one in the tube wall Or multiple channels.

4. ureter sheath according to claim 1, it is characterised in that: the control mechanism (6) is push type spanner.

5. ureter sheath according to claim 1, it is characterised in that: the control mechanism (6) is rotary type knob.

6. ureter sheath according to claim 1, it is characterised in that: the control mechanism (6) is swing type rocking bar, and institute The swaying direction for stating rocking bar is identical as the bending direction of the deformation section (5).