CN203724516U - Urine catheterization device with curved hollow catheter guide head - Google Patents
Urine catheterization device with curved hollow catheter guide head Download PDFInfo
- Publication number
- CN203724516U CN203724516U CN201420106038.2U CN201420106038U CN203724516U CN 203724516 U CN203724516 U CN 203724516U CN 201420106038 U CN201420106038 U CN 201420106038U CN 203724516 U CN203724516 U CN 203724516U
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- intubate
- hollow
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- head
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- 210000002700 urine Anatomy 0.000 title claims abstract description 25
- 210000003708 urethra Anatomy 0.000 claims abstract description 33
- 230000007704 transition Effects 0.000 claims abstract description 5
- 239000000314 lubricant Substances 0.000 claims description 66
- 238000002347 injection Methods 0.000 claims description 45
- 239000007924 injection Substances 0.000 claims description 45
- 239000012530 fluid Substances 0.000 claims description 17
- 239000003814 drug Substances 0.000 claims description 11
- 230000029142 excretion Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 230000002262 irrigation Effects 0.000 claims description 6
- 238000003973 irrigation Methods 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 5
- 230000002485 urinary effect Effects 0.000 claims description 4
- 230000037361 pathway Effects 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 abstract 7
- 238000005452 bending Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 4
- 230000000916 dilatatory effect Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 210000002307 prostate Anatomy 0.000 description 3
- 206010004446 Benign prostatic hyperplasia Diseases 0.000 description 2
- 208000004403 Prostatic Hyperplasia Diseases 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010020880 Hypertrophy Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002529 medical grade silicone Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
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- External Artificial Organs (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
A head end of a urine catheterization device comprises a cannula head and a catheterizing guide head. The cannula head comprises a tapered segment, a transition segment and a joint segment. The diameter of the transition is increased gradually from the diameter of the bottom of the tapered segment to the diameter of the joint segment, and the diameter of the joint segment is the same as the outer diameter of middle of the catheterizing segment; a lubricating oil nozzle inner hole and a catheterizing guide head mounting stepped hole are formed in the tapered segment; the side wall of the lubricating oil nozzle inner hole is provided with at least one radial lubricating oil nozzle, and the catheterizing guide head mounting stepped hole matches with the catheterizing guide head at the front end of a hollow guide core tightly in a easily detached manner; the joint segment is provided with a catheterization mounting stepped hole; at the head end, the hollow guide core comprises the catheterizing guide head at the front end, a catheter in the transition segment and a catheter in a straight segment; lubricating oil enters the urethra through the lubricating oil nozzle inner hole and the lubricating oil nozzle. According to the urine catheterization device, the catheterizing pushing force can be concentrated at the head end of the urine catheter, the lubricating oil can lubricate and expand the urethra for the whole course, the resistance of catheterizing is reduced accordingly, and damages to the inner wall of the urethra are reduced.
Description
Technical field
This utility model relates to a kind of o urethral catheterization device, especially relates to the urine exporter of supplemental lubrication agent in real time.Urine exporter of the present utility model comprises the catheter of ripe title.
Background technology
Urethral catheterization is one of main operation of diagnosis and treatment of Urology Surgery.Before intubate, conventionally with lubricator smear catheter to reduce resistance, but in the operational stroke that reaches more than 20 centimeter, the narrowest position multidigit is in the exit of prostatic hyperplasia.The end of this position in stroke.When catheter arrives this position, the amount of lubricant is very little residual, and intubate resistance is large.Difficulty is passed through region of obstruction.
Conventional silica fubber cathete hardness is inadequate, and when intubate is hampered, flexible distortion is difficult inserts, and thrust is difficult to concentrate on catheter tip, is difficult for by blocking place, and therefore, clinical catheterization often has failure.
Especially, for the male patient of prostatic hyperplasia, its prostate section urethra bending, elongation, urethra is like crack shape, and the prostata tissue of hypertrophy is to urethra inner process, and compressing urethra, makes rear urethra luminal stenosis, causes urinary catheter to insert difficulty.
In order to solve difficult intubation, when intubate, adopt catheter lubricated more.But when catheter approaches out prostate oral area, catheter head end does not have lubricant substantially, and this situation had both increased intubate difficulty, easily cause again the damage of urethra inwall.
When clinical manipulation, in the catheter of being everlasting, insert tinsel and lead core, to increase catheter hardness, handled easily.But in prior art, the tube head of catheter is solid, seal wire can not arrive its top and be stressed.If seal wire arranged dark, easily skid off and damage urethra from conduit side opening, cross shallow catheter proximal end and lose seal wire support, because soft being difficult for imports.
Particularly, when inserting tinsel lead core in catheter, lead core print end, tail end all fixing.Tinsel can lengthwise movement in catheter.Tinsel head end is easily deviate from and damages urethra from side opening.And tinsel easily rotates in catheter, be difficult to control operation.
Catheter is inserted in the situation of failure, adopts bladder stoma paracentesis that the urine of retention is discharged more.Conventional fistulation paracentesis are larger to patient's damage, hemorrhage more, complicated operation and easy infection.Bring larger misery to patient.
Utility model content
The purpose of this utility model is to provide a kind of urine exporter of supplemental lubrication agent in real time, and it can provide at any time sufficient lubricant in the overall process of inserting urethra, full dilating urethra.
Another one object of the present utility model is to provide a kind of urine exporter of supplemental lubrication agent in real time, and it can guarantee that thrust concentrates on urethral catheterization tube head.
Another one object of the present utility model is to provide a kind of urine exporter of supplemental lubrication agent in real time, and it can prevent to lead core and deviate to damage urethra.
Another one object of the present utility model is to provide a kind of urine exporter of supplemental lubrication agent in real time, and it can prevent to lead core undesirable rotation occurs.
For this reason, according to an aspect of the present utility model, provide a kind of head end of urine exporter, it is characterized in that, described head end comprises intubate head and intubate top guide; Intubate head comprises cone section, changeover portion and junction; The diameter of changeover portion increases to the diameter of junction gradually from the diameter of cone section bottom; The diameter of junction is the external diameter of intubate interlude;
In cone section, be provided with lubricant nozzle endoporus and intubate top guide installation step hole; The sidewall of lubricant nozzle endoporus is provided with at least one radially lubricant nozzle; The intubate top guide that intubate top guide installation step hole and hollow are led core front end closely but easily coordinate to dismounting; Be provided with intubate installation step hole at junction;
At head end, hollow is led intubate top guide, the intubate of changeover portion and the intubate of flat segments that core comprises front end; Lubricant enters urethra by lubricant nozzle endoporus and lubricant nozzle.
Preferably, intubate head also comprises guidance spheres, and the slightly larger in diameter of guidance spheres is in the most advanced and sophisticated diameter of cone section; In cone section, be also provided with urethral catheterization stepped hole, the sidewall of urethral catheterization stepped hole is provided with at least one hole of urinating, urethral catheterization stepped hole extends to changeover portion, and the central axis along changeover portion extends, between the outer wall of the hollow inner core of urethral catheterization stepped hole and intubate top guide, form the ringwise urethral catheterization passage of cross section; And urine is urinated by the aperture urethral catheterization passage of urinating.
Preferably, changeover portion is straight type or curved structure.
Preferably, intubate is provided with fluid cell and fills fluid passage, drug irrigation passage; And/or intubate is provided with in the one end of leading the intubate top guide of core near hollow the side opening of urinating, and excretion cone-shaped interface, fluid cell interface, drug irrigation interface are being set away from the position of head end.
Preferably, the main body of head end and urine exporter is connected structure or integrative-structure.
Preferably, to lead the cornerite of the curve transition section of core be °-180 °, α=120 for catheter head end and hollow.
Preferably, its top is guidance spheres or opening.
Preferably, the side opening of urinating is positioned in intubate, and fluid cell is positioned in intubate, and intubate top guide is positioned at side opening front end, and excretion cone-shaped interface is positioned at intubate afterbody.
Preferably, lubricant nozzle doubles as the hole of urinating.
According to another one of the present utility model aspect, a kind of urine exporter is provided, in urethral catheterization intubate, be provided with fluid cell passage, medicine liquid channel, urinary pathway, it is characterized in that, in urethral catheterization intubate, be provided with for delivery of the hollow of lubricant and lead core; The front end that this hollow is led core closely but be easily engaged in to dismounting as the head end of the urethral catheterization intubate of claim 1-9 as described in one of them; The tail end that this hollow is led core is interference fitted in leads on core print seat; The front of leading the front end of core in hollow is provided with horizontal lubricant nozzle; Lead with hollow the lubricant passageway that core communicates leading in core print seat to arrange; Lubricant injection device is communicated with this lubricant passageway.
According to this utility model, lubricant is at intubate omnidistance all Castor Oil and dilating urethra, and then the resistance of reduction intubate, reduces the damage of urethra inwall.
According to this utility model, lead core and increased the hardness of catheter due to hollow, can guide the intubate operation of catheter, make the intubate can flexural deformation in advancing, make thrust can concentrate on the head end of catheter, therefore, intubate is easily by the narrow and region of obstruction in patient body.
According to this utility model, lead the two ends of core all fixes by interference fit due to hollow, before and after can not be in catheter, slide or double swerve, can prevent from deviating to damage urethra because leading core from side opening, and can be coaxial with catheter, equidirectional, with angle rotate.Catheter, hollow leads core, leading core print seat can be coaxially, in the same way, rotate with angle; Catheter, hollow are led core, are led core print seat, injection device or injection device front end can be coaxially, in the same way, with angle rotation, therefore can precisely control the direction of motion and the angle of catheter.
Brief description of the drawings
Fig. 1 is the urethral catheterization principle schematic according to the intubate of leading core with hollow of the present utility model.
Fig. 2 is the mounting structure schematic diagram of leading core head according to intubate head of the present utility model and hollow.
Fig. 3 is the mounting structure schematic diagram of leading core afterbody and intubate afterbody connecting device according to intubate afterbody of the present utility model and hollow.
Fig. 4 is the mounting structure schematic diagram of leading core and injection device according to hollow of the present utility model.
Fig. 5 is the mounting structure schematic diagram according to injection device of the present utility model and syringe.
Detailed description of the invention
As described in Figure 1, comprise head end, interlude, tail end and lubricating syringe according to urine exporter of the present utility model.Wherein, so-called interlude is that built-in hollow is led core on the basis of traditional catheter; Head end is at the built-in intubate top guide of traditional intubate head; Tail end comprises that intubate afterbody locker and hollow leads core afterbody locker.
Say further, at head end, intubate top guide is led core with the hollow of interlude and is communicated with.In one embodiment, the mouth of urinating of intubate be arranged on intubate top guide a downstream, be positioned at the downstream portion of head end, and be positioned at the upstream of intubate pars intermedia at head end fixing point; The nozzle that hollow is led the lubricant of core is arranged on the downstream of intubate head and the upstream of intubate top guide.This embodiment is more conducive to intravesical urine emptying.
In the embodiment of another one designs simplification, the nozzle that urinate mouthful and the hollow of intubate is led the lubricant of core can be a hole.
At tail end, the afterbody of intubate afterbody locker and intubate interlude can link together for convenience detachly; Hollow is led core afterbody locker and hollow and is led the afterbody of core and connect securely; The afterbody that hollow is led core is led core afterbody locker by hollow and is communicated with lubricating syringe.
Meanwhile, the intubate pars intermedia of intubate interlude is also provided with to air bag inflatable mouth and liquid medicine injection entrance, and air bag passage and medicine liquid channel can be same as the prior art.
In this utility model, air bag of the prior art can be replaced by fluid injection swelling bag or gas injection swelling bag.The gas injecting, except air, can also be other gases; The liquid injecting, except water, can also be other liquid.
In one embodiment, head end and interlude are plugged in together.
In another embodiment, head end and interlude are the structures of one.
As shown in Figure 2, in one embodiment, comprise intubate head 10-13 and intubate top guide 20 according to the head end of urine exporter of the present utility model.
Intubate head 10-13 comprises guidance spheres 10, cone section 11, changeover portion 12 and junction 13.The slightly larger in diameter of guidance spheres 10 is in the most advanced and sophisticated diameter of cone section 11; The diameter of changeover portion 12 increases to the diameter of junction 13 gradually from the diameter of cone section 11 bottoms; The diameter of junction 13 is the external diameter of intubate interlude.
In cone section 11, be provided with lubricant nozzle endoporus 16, intubate top guide installation step hole 17 and urethral catheterization stepped hole 18.The sidewall of lubricant nozzle endoporus 16 is provided with at least one radially lubricant nozzle 14.The intubate top guide 20 that intubate top guide installation step hole 17 and hollow are led core front end keeps good adaptation, leads core 22 but be convenient to extract like a cork hollow after successful intubate.The sidewall of urethral catheterization stepped hole 18 is provided with at least one hole 15 of urinating.
Urethral catheterization stepped hole 18 extends to changeover portion 12, and extends along the bending central axis of changeover portion 12.Between the outer wall of the hollow inner core 21 of urethral catheterization stepped hole 18 and intubate top guide 20, form the ringwise urethral catheterization passage 23 of cross section.At junction 13, be provided with intubate installation step hole 19.
At head end, hollow is led core and is comprised that the intubate top guide 20 of front end, the hollow of leading core elbow 21 and flat segments of changeover portion leads core 22.Lubricant enters lubricant nozzle endoporus 16 along the direction shown in arrow R1, R2, R3, R4, R5, then enters urethra along the direction shown in arrow R6 by lubricant nozzle 14.And urine enters along the direction shown in arrow N the hole 15 of urinating, urinate through urethral catheterization passage 23.
In various embodiment, the changeover portion of head end can be straight type or curved structure.
In one embodiment, can be using lubricant nozzle 14 also as the hole of urinating, a hole is in the intubate operational phase, as lubricant nozzle, and extracting after hollow leads core, again as urinating hole.Like this, can simplify the internal structure of head end, the output of intravesical urine, can not be much affected.
The same with the three-cavity catheter of prior art, intubate also can be provided with traditional air bag and filling channel, also can have medicine (flushing) passage.Intubate is provided with the hole of urinating (side opening) 15 in the one end of leading the intubate top guide of core near hollow, and excretion cone-shaped interface 132, air bag interface (not shown), drug irrigation interface (not shown) are being set away from the position of head end.The hole 15 (side opening) of urinating is positioned in intubate, and air bag is positioned in intubate, and intubate top guide is positioned at the front end of side opening 15, and excretion cone-shaped interface 132 is positioned at the afterbody of intubate.
In another embodiment, air bag and filling channel can replace to liquid capsule and topping up passage.
But this utility model comprises the fluid lubricant passage that prior art does not possess.
In one embodiment, this utility model adopts medical grade silicon rubber material, and production technology comprises refining glue, is squeezed into pipe, mould pressing cavity head, mold pressing air bag, mold pressing top guide, punching deburring, seal inner peripheral, bonding top guide etc.
As shown in Figure 3, the taper seat that the tail end 131 of intubate 13 expands gradually for diameter, the inner side of tail end 131 is provided with conical bore 132.The inner conical surface of conical bore 132 matches with the male cone (strobilus masculinus) of the conulite 41 of intubate afterbody locker 43.The tail end 131 of intubate 13 is slided and is locked on intubate afterbody locker 43 to the direction away from intubate by lock sleeve 50.
Intubate afterbody locker 43 is being provided with hollow cylinder 42 away from one end of conulite 41.
The afterbody 23 that hollow is led core 22 closely cooperates or is interference fitted in hollow and leads in the lock hole 32 of core afterbody locker 30.
As shown in Figure 4, hollow is led core afterbody locker 30 and is removably mounted on the hollow cylinder 42 of intubate afterbody locker 43.
In one embodiment, on the outer surface of the hollow cylinder 42 of intubate afterbody locker 43, two projections 44,45 are set, and hollow is led the coupler body 31 that can be enclosed in by its rotation projection 44,45 peripheries is set on core afterbody locker 30.The hook groove 37 that makes structure body 31 dodge projection 44,45 also can be set on coupler body 31.Coupler body 31 is provided with locking in a side of leading core 22 in the face of hollow and fastens 38 half groove that holds, and this holds space between half groove and projection 44,45 and holds together locking and fasten 38.Locking fastens 38 also can be provided with width and be slightly larger than the solution locked groove of projection 44,45 in a side of leading core 22 in the face of hollow, like this, locking fastens 38 can be become to push away and fasten, more convenient operation, fasten 38 when locking and be pushed to release groove face to projection 44,45 time, coupler body 31 is in released state; Be pushed to and separate locked groove and depart from projection 44,45 time and fasten 38 when locking, coupler body 31 is in the lock state.
In another embodiment, can add to grip by a simple elasticity and hollow is led to core afterbody locker 30 be removably fixed on the outer surface of hollow cylinder 42 of intubate afterbody locker 43.
In addition, hollow is led core afterbody locker 30 in the side away from intubate head, is provided with syringe front end and inserts taper hole 33.The smaller diameter end that this syringe front end inserts taper hole 33 is arranged on hollow leads the end face of the tail end 23 of core, and larger diameter end is arranged on the bench port inner face in syringe front end chamber 35.
In one embodiment, on the bench port outer face in syringe front end chamber 35, be also provided with the dentation junction surface 36 for being combined with injection device.Injection device 60 comprises for leading the conjugate foramen 62 of the band dentation joint portion, bottom surface that core afterbody locker 30 engages, centre bore 64 and the syringe placed cavity 61 that allows syringe front end 91 to pass with hollow.Injection device 60 is at least provided with connecting thread at the outer surface at conjugate foramen 62 positions, place of band dentation joint portion, bottom surface.Hollow is led the locating slot 301 that elastic washer 70 can also be set on core afterbody locker 30.Locking cap 80 is provided with the endoporus 81 and the locking female thread 82 that hold hollow and lead core afterbody locker 30.Locking cap 80 makes hollow lead core afterbody locker 30 to be connected with injection device by locking female thread 82.
In another embodiment, injection device is a simple air bag syringe, is wherein provided with a check-valves, on the bench port outer face of syringe placed cavity 35, can be smooth end face.
In another embodiment, the check-valves of lubricant is not arranged in air bag syringe, leads in the tail end 23 or syringe front end insertion taper hole 33 of core and be arranged on hollow.
As shown in Figure 5, syringe comprises injection tube 90, syringe front end 91, piston 92, injection rod 93 and push-plate 94.Syringe front end 91, through the centre bore 64 of injection device 60, is placed in syringe placed cavity 61 injection tube 90.The outer surface of the below of the syringe placed cavity 61 of injection device 60 is provided with guide rail 65.Stepping tooth bar 66 can move forward length by length along guide rail 65, thereby can promote push-plate 94 with the pushing ram 68 of stepping tooth bar 66 one, promote piston 92 by injection rod 93 and move length by length forward, have thus dosage lubricant and push hollow and lead the tail end 23 of core.
Injection tube 90 is fixedly mounted on injection device 60 by pressurization retaining device 70.This pressurization retaining device 70 can be appropriate configuration of the prior art, for example, comprise a baffle plate that can rotate around pivot and in these baffle plate both sides around the bending backplate with transverse elasticity of injection tube 90, on the backplate of every side, be all provided with backstop.While pressing lower baffle plate, this baffle plate can overcome the elasticity of two side guard plates and arrive the below of backstop, and under the fastening effect of backstop, baffle plate can not be back to the top of backstop, thereby injection tube 90 is fixedly mounted on injection device 60 by baffle plate.
On the contrary, if need to take off injection tube 90, as long as firmly upwards lift baffle plate, baffle plate can overcome the elasticity of two side guard plates, removes the fastening effect of backstop, make the top of baffle plate arrival backstop, thereby injection tube 90 can unload from injection device 60.
Stepping tooth bar 66 is spacing by non-return baffle plate 67.Stepping tooth bar 66 comprises a series of tooth, and non-return baffle plate 67 inserts in one of them tooth, and in Fig. 5, tooth bar 66 is moved to the left the constraint that is not subject to non-return baffle plate 67, but can not move right by the constraint of non-return baffle plate 67.
In the handle (not shown) of injection device 60, be provided with and advance trigger 69, this propelling trigger 69 is tending towards not certain tooth to stepping tooth bar 66 under the effect of spring to be promoted.If firmly hold this propelling trigger 69, so, advance trigger 69 just to overcome the effect of spring, make to advance a position on trigger 69 to promote a tooth on stepping tooth bar 66, make stepping tooth bar 66 occur in the pitch that is moved to the left a tooth in Fig. 5, thereby lead the lubricant of the interior propelling doses of tail end 23 of core to hollow.
According to this utility model, catheter has hollow and leads core, and catheter top guide has lubricant passageway or opening; Leading core print seat 30 can removably be connected with injection device 60 easily, realizes coaxial with turning.
According to this utility model, in the time using this catheter, the tail end 23 that lubricant is led core via hollow arrives the head end of catheter from injection device 60, then enters urethra from the lubricant passageway of head end top guide.Like this, just can ensure in intubate process, omnidistance have enough lubricants to be positioned at the head end of catheter, and meanwhile, the lubricant injecting from catheter head end also plays the effect of dilating urethra, and then reduce the resistance of intubate, reduces the damage of urethra inwall.The hollow arranging in catheter is led core can increase the hardness of catheter, makes thrust concentrate on the head end of catheter, and therefore, catheter is easily by the narrow and region of obstruction in patient body, with handled easily.
According to this utility model, the top of catheter head end is top guide or opening shape.
When catheter head end is top guide, top guide has a fluid passage for shot lubrication agent (non-medicine or irrigation channel) at least.The head end (being intubate top guide) that hollow is led core is positioned in the head end of catheter.Head end and top guide afterbody that hollow is led core have good adaptation, and lubricant is led core and entered urethra by top guide fluid passage through hollow.
When catheter head end top is opening-like, the head end that hollow is led core is positioned at catheter head end top end opening place or stretches out beyond opening part.Head end and catheter opening part that hollow is led core have good adaptation, and the fluid passage that lubricant is led core print end from hollow enters urethra.
According to this utility model, because hollow is led between the head end of core and top guide and is had good sealing and tight fit relation, catheter head end and hollow lead core realized between the two can be coaxial, equidirectional, with angle rotate.
According to this utility model, to lead core print end and closely cooperate due to catheter head end and hollow, lubricant can be led core and enter urethra by top guide fluid passage through hollow.
According to this utility model, because catheter head end and hollow are led core print end and closely cooperated, hollow is led core and is slided or double swerve before and after can not be in catheter.
According to this utility model, hollow is led core front end and is had an opening for delivery of liquid substance at least.
According to this utility model, when catheter head end top is top guide, hollow is led core print end and is positioned at top guide afterbody, and hollow leads core print end and top guide afterbody has good adaptation, and lubricant can be led core and enter urethra by top guide lubricant passageway through hollow.
According to this utility model, when urinary catheter top is opening, hollow is led core print end and is positioned at catheter top end opening place or stretches out opening part, and hollow is led the not essential soft head device of core print end, hollow leads core print end and catheter opening part coordinates, and lubricant is led core through hollow and entered urethra.
According to this utility model, the tail end that hollow is led core is provided with leads core print seat 30, and this is led core print seat 30 and leads core 22 for fixing hollow.
According to this utility model, leading core print seat 30 can coordinate with catheter excretion cone-shaped interface 132 by a connecting device 43,50, also can directly coordinate with catheter excretion cone-shaped interface 132.
According to this utility model, hollow is led core and is coordinated except head end outer wall and catheter head end, and tail end is led core print seat and drained outside cone-shaped interface coordinates, and hollow is led between the outer wall in core stage casing and catheter inwall certain interval.
According to this utility model, hollow leads that core head has a bending (α=120 °-180 °) or without bending.Catheter head end and hollow are led the bending that core all has mutual coupling (α=120 °-180 °) and are equated, or all without bending.
According to this utility model, hollow is led core and is led the not essential passage communicating with atmosphere of core print seat; What hollow was led core leads the not essential hand holding handle of core print seat.
According to this utility model, hollow is led being connected of core print end and catheter head end, hollow and is led that core tail end is led core print seat and catheter excretion cone-shaped interface is connected, hollow is led to core and carried out spacingly, make in operating process hollow lead core and slide and/or double swerve before and after can not be in catheter.
According to this utility model, hollow is led core tail end and is led core print seat (without handle) and can be connected with injection device, also can not connect injection device.According to this utility model, catheter, hollow leads core, leading core print seat can be coaxially, in the same way, rotate with angle; Catheter, hollow are led core, are led core print seat, injection device or injection device front end can be coaxially, in the same way, rotate with angle.
According to this utility model, injection device can be any one form of filling gun, syringe, sacculus or infusion pump.Injection device with lead core print seat and closely cooperate.Injection device is detachable.Filling gun is multi-level injection, and injection volume can be controlled.Hollow is led core, is led core print seat, injection device can coaxial rotating.
According to this utility model, hollow is led core and is had certain hardness, can guide the intubate operation of catheter, in addition, or the conveyance conduit of lubricant.Lead core hard moderate, make the intubate can be smoothly by prostatic narrow positions.
According to this utility model, hollow is led core print end and is connected with being sealed and matched of catheter head end, can guarantee that lubricant enters urethra.According to this utility model, hollow is led core tail end and is led core print seat and catheter excretion cone-shaped interface place and be connected, and can limit the motion of leading core print seat.
According to this utility model, catheter head end has injection canal, lubricant from injection device through hollow lead core, catheter head end enters urethra, can omnidistance shot lubrication agent in intubate process, even if also can ensure enough lubricants in prostate exit, thereby can reduce intubate resistance.
According to this utility model, lubricant penetrates from the fluid passage of catheter top guide, and a large amount of lubricants enter urethra, have the effect of dilating urethra.
According to this utility model, hollow is led core and is supported whole catheter, and has certain degree of hardness, makes the intubate can flexural deformation in advancing, and the strength of propelling concentrates on catheter head end, easily by narrow region of obstruction.
According to this utility model, lead core print end, tail end fixing spacing, avoid leading the lengthwise movement of core in catheter, can prevent from deviating to damage urethra because leading core from side opening.
According to this utility model, lead core print end, tail end fixing spacing, catheter, hollow are led core, are led core print seat, injection device or injection device front end can be coaxially, in the same way, with angle rotation, therefore, can control accurately the direction of motion of catheter and insert angle.
Closely but easy-off fit structure can be for example spline fitted structure.
Claims (10)
1. a head end for urine exporter, is characterized in that, described head end comprises intubate head and intubate top guide; Intubate head comprises cone section, changeover portion and junction; The diameter of changeover portion increases to the diameter of junction gradually from the diameter of cone section bottom; The diameter of junction is the external diameter of intubate interlude;
In cone section, be provided with lubricant nozzle endoporus and intubate top guide installation step hole; The sidewall of lubricant nozzle endoporus is provided with at least one radially lubricant nozzle; The intubate top guide that intubate top guide installation step hole and hollow are led core front end closely but easily coordinate to dismounting; Be provided with intubate installation step hole at junction;
At head end, hollow is led intubate top guide, the intubate of changeover portion and the intubate of flat segments that core comprises front end; Lubricant enters urethra by lubricant nozzle endoporus and lubricant nozzle.
2. head end as claimed in claim 1, is characterized in that, intubate head also comprises guidance spheres, and the slightly larger in diameter of guidance spheres is in the most advanced and sophisticated diameter of cone section; In cone section, be also provided with urethral catheterization stepped hole, the sidewall of urethral catheterization stepped hole is provided with at least one hole of urinating, urethral catheterization stepped hole extends to changeover portion, and the central axis along changeover portion extends, between the outer wall of the hollow inner core of urethral catheterization stepped hole and intubate top guide, form the ringwise urethral catheterization passage of cross section; And urine is urinated by the aperture urethral catheterization passage of urinating.
3. head end as claimed in claim 1, is characterized in that, changeover portion is straight type or curved structure.
4. head end as claimed in claim 1, is characterized in that, intubate is provided with fluid cell and fills fluid passage, drug irrigation passage; And/or intubate is provided with in the one end of leading the intubate top guide of core near hollow the side opening of urinating, and excretion cone-shaped interface, fluid cell interface, drug irrigation interface are being set away from the position of head end.
5. head end as claimed in claim 1, is characterized in that, the main body of head end and urine exporter is connected structure or integrative-structure.
6. the head end as described in claim 1 or 3, is characterized in that, the cornerite that catheter head end and hollow are led the curve transition section of core is °-180 °, α=120.
7. head end as claimed in claim 1, is characterized in that, its top is guidance spheres or opening.
8. head end as claimed in claim 1, is characterized in that, the side opening of urinating is positioned in intubate, and fluid cell is positioned in intubate, and intubate top guide is positioned at side opening front end, and excretion cone-shaped interface is positioned at intubate afterbody.
9. head end as claimed in claim 1, is characterized in that, lubricant nozzle doubles as the hole of urinating.
10. a urine exporter is provided with fluid cell passage, medicine liquid channel, urinary pathway in urethral catheterization intubate, it is characterized in that, in urethral catheterization intubate, is provided with for delivery of the hollow of lubricant and leads core; The front end that this hollow is led core closely but be easily engaged in to dismounting as the head end of the urethral catheterization intubate of claim 1-9 as described in one of them; The tail end that this hollow is led core is interference fitted in leads on core print seat; The front of leading the front end of core in hollow is provided with horizontal lubricant nozzle; Lead with hollow the lubricant passageway that core communicates leading in core print seat to arrange; Lubricant injection device is communicated with this lubricant passageway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106038.2U CN203724516U (en) | 2014-03-10 | 2014-03-10 | Urine catheterization device with curved hollow catheter guide head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106038.2U CN203724516U (en) | 2014-03-10 | 2014-03-10 | Urine catheterization device with curved hollow catheter guide head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203724516U true CN203724516U (en) | 2014-07-23 |
Family
ID=51194624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420106038.2U Expired - Lifetime CN203724516U (en) | 2014-03-10 | 2014-03-10 | Urine catheterization device with curved hollow catheter guide head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203724516U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861159A (en) * | 2014-03-10 | 2014-06-18 | 向谷兮 | Urine educing device with bent hollow guide head |
| CN107929921A (en) * | 2017-12-20 | 2018-04-20 | 武汉市迅舒科技有限公司 | A kind of catheter assembly |
-
2014
- 2014-03-10 CN CN201420106038.2U patent/CN203724516U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861159A (en) * | 2014-03-10 | 2014-06-18 | 向谷兮 | Urine educing device with bent hollow guide head |
| CN103861159B (en) * | 2014-03-10 | 2017-02-08 | 向谷兮 | Urine educing device with bent hollow guide head |
| CN107929921A (en) * | 2017-12-20 | 2018-04-20 | 武汉市迅舒科技有限公司 | A kind of catheter assembly |
| CN107929921B (en) * | 2017-12-20 | 2024-08-27 | 武汉市迅舒科技有限公司 | Catheter device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: WUHAN XUNSHU TECHNOLOGY Co.,Ltd. Assignor: Ouyang Zhiwei|Xiang Guxi Contract record no.: 2017420000018 Denomination of utility model: Urine educing device with bent hollow guide head Granted publication date: 20140723 License type: Exclusive License Record date: 20170714 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |