CN105999523A

CN105999523A - Dilation catheter with folded bladders

Info

Publication number: CN105999523A
Application number: CN201610486560.1A
Authority: CN
Inventors: 谢伟娟; 钦湘; 吴勇
Original assignee: NANJING SHUANGWEI BIOTECHNOLOGY CO Ltd
Current assignee: NANJING SHUANGWEI BIOTECHNOLOGY CO Ltd
Priority date: 2016-06-27
Filing date: 2016-06-27
Publication date: 2016-10-12

Abstract

The invention discloses a dilation catheter with folded bladders. The dilation catheter comprises a main catheter body, at least one filling bladder and a liquid inlet tube which is arranged on the inner wall of the main catheter body and communicated with inner cavities of the bladders through liquid injection ports; a plurality of corrugations which are in a regular and rotatably-folded shape are formed when the interiors of the bladders are in a vacuum state, and a packing part is arranged outside the corrugations. According to the dilation catheter with the folded bladders, the bladders which are high in strength and biocompatibility and good in plasticity are made of a special material and regularly and rotatably folded through producing and processing, therefore, the bladder size is decreased to the maximum extent, and injuries to a patient are reduced to the maximum extent.

Description

A kind of with the dilator receiving folded utricule

Technical field

The present invention relates to medical apparatus and instruments consumptive material field, relate in particular to a kind of bio-compatible for prostate Dilation Property dilator.

Background technology

Prostatic hyperplasia becomes the commonly encountered diseases threatening elderly men healthy, and so-called prostatic hyperplasia, mainly due to prostatitis The hypertrophy of glandular tissue, causes its volume to increase, and then the organ that extruding is around, causes urinary tract to diminish and narrows, thus occurs The symptoms such as dysuria, nocturia are frequent, urination time extends, vesical tenesmus, the most effectively prevent this disease at present Method.And the method treating prostatic hyperplasia has the treatment of Drug therapy, open operation and minimally-invasive treatment.Drug therapy can The development allowing prostatic hyperplasia slows down, and even some medicine can make the prostatic hyperplasia of some patients reverse.But medicine That treats is expensive, and some patients is to being finally also not fee from operative treatment.Traditional prostatectomy or TURP Art effect determines that, but patient is hit relatively big by operation, and old people's health and poor to the ability to bear performed the operation at heart, A lot of patients are unwilling to undergo surgery.Whether which kind of mode, is required to the instrument and equipment of costliness, and needs longer Time training, the specialist being skilled in technique complete.These conditions make basic hospital be difficult to carry out, and also can be to doctor Treat resource and cause waste, add patient and seek medical advice cost.

It is to use latex material to be fabricated to utricule that existing prostate expands treatment, and the design of this material is in view of dropping as far as possible The low impact on patient wound, but the plasticity of this material is poor, and full rear intermediate expansion expands more than two ends, expands at prostate Open treatment reduces and expand effect.And this material is opaque, it is impossible to combine endoscopic apparatus and carry out intubating location, therefore Operation safety is difficult to ensure.

Further, since dilator needs to be inserted directly in the patient, because utricule forms irregular projection on main pipe surface, Assemble the most during insertion and form bulb in rear end, during intervention, secondary insult can be brought to patient wound.

Summary of the invention

Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of transparent, biocompatibility High utricule type stacked to be received dilator, reduces utricule volume to reduce the wound to patient by receiving folded realization.

Technical scheme: for achieving the above object, the present invention's is a kind of with receiving the dilator of folded utricule, including main pipe, At least one filled utricule of being located on main pipe and be located at main pipe's inwall and through liquid injection port and utricule inner space Feed tube；Described utricule forms the shape that the rotation of some gauffer rules is folded under inner vacuum state, is provided with outside gauffer Tight bundle.

Utricule of the present invention is the film type utricule that TPU material is made.The full name of TPU material is thermoplastic polyurethane Body, this material has outstanding advantages in following performance: plasticity, wearability, transparency, elasticity, mechanical strength, High temperature resistance and non-oxidizability, resistance to tortuosity, avirulence etc..Therefore it is to expand for prostate to split full ideal material.Special It not, after TPU film utricule fills, because the restriction of TPU balloon shapes will not deform, therefore can to make as requested The position of fixed expansion and degree.Preferably, described utricule is cylindricality or fusiformis or elliposoidal.

Further, as the prioritization scheme of the present invention, balloon shapes is cylindrical.In view of the damage reduced human body, The cylinder being shaped as front and back there is fillet of described utricule.Using cylindrical balloon is shape based on human prostate tissues Shape and expansion need formulation.Owing to prior art is because of material and the restriction of technology, it is that intermediate expansion degree is more than two mostly End degrees of expansion, therefore expands effect unsatisfactory, needs repeatedly to fill expansion and realizes.And the present invention is by fillet cylindricality Utricule, also can realize from two ends well expanding effect.

It is similar that the folded mode of its rotation of the gauffer of the present invention receives folded principle to umbrella, further, and the crestal line of described gauffer and master Body axis parallel；Gauffer is folded according to receiving clockwise or counterclockwise, at utmost reduces the damage to patient.Gauffer The folded processing realization in production packaging process of rotation.

Described utricule thickness is 0.05-0.2mm, preferably 0.05-0.1mm, to the parameter request of utricule its at 4 air Will not deform and rupture under pressure is full.

Described tight bundle includes but not limited to the PVC film band that heat seal is bonding, processes through heat seal when dispatching from the factory, and tight bundle will Gauffer holds onto tightly, needs to tear tight bundle when using.

Beneficial effect: high intensity made by the dilator employing special material of the present invention, biocompatibility is high, plasticity is good Utricule, and it is folded to make utricule carry out rule rotation by production and processing, at utmost reduces utricule volume and reduces patient's Wound.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention；

Fig. 2 is that utricule of the present invention rotation is folded by the schematic cross-section under tight pencil state.

Detailed description of the invention

Below in conjunction with the accompanying drawings the present invention is further described.

Embodiment 1

As shown in Figure 1 and Figure 2, a kind of with receiving the dilator folding utricule, including main pipe 1, it is located on main pipe At least one TPU utricule 20 that can fill and be located at main pipe's inwall and through liquid injection port and utricule inner space Feed tube 30；Utricule 20 is cylindrically shaped and front and back has fillet.Utricule 20 thickness is preferably 0.05-0.2mm, To the parameter request of utricule 20, it will not deform and rupture under four atmospheric pressure are full.

Utricule 20 forms the shape that the rule rotation of some gauffers 4 is folded under inner vacuum state, is provided with tight bundle outside gauffer Part 5.Crestal line 41 and main pipe 1 axis parallel of gauffer 4；Gauffer 4 is folded according to receiving clockwise or counterclockwise, maximum Degree reduces the damage to patient.The folded processing realization in production packaging process of rotation of gauffer 4.Tight bundle 5 For the PVC film band that heat seal is bonding, processing through heat seal when dispatching from the factory, gauffer is held onto by tight bundle 5 tightly, needs Tight bundle is torn during use.

Embodiment 2

As shown in Figure 1 and Figure 2, the present embodiment is substantially the same manner as Example 1, and difference is that utricule 20 is divided into front capsule 21 With 22 two, rear capsule.Main pipe is positioned at front capsule and is provided with front liquid injection port 12, and is communicated to front feed tube 31, from main pipe Rear portion is stretched out；Main pipe is positioned at rear capsule and is provided with rear liquid injection port 13, and is communicated to rear feed tube 32, from main pipe rear portion Stretch out.

Utricule thickness is 0.05-0.1mm, to the parameter request of utricule its 4 atmospheric pressure full lower will not deform with Rupture.

The above is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also Should be regarded as protection scope of the present invention.

Claims

1. the dilator with the folded utricule of receipts, it is characterised in that: include main pipe, be located on main pipe at least One can fill utricule and be located at main pipe's inwall the feed tube through liquid injection port Yu utricule inner space；Described utricule Under inner vacuum state, form the shape that the rotation of some gauffer rules is folded, outside gauffer, be provided with tight bundle.

It is the most according to claim 1 a kind of with the dilator receiving folded utricule, it is characterised in that: described utricule is Cylindricality or fusiformis or elliposoidal.

It is the most according to claim 2 a kind of with the dilator receiving folded utricule, it is characterised in that: described utricule It is shaped as the cylinder front and back with fillet.

It is the most according to claim 3 a kind of with the dilator receiving folded utricule, it is characterised in that: described gauffer Crestal line and main pipe's axis parallel；Gauffer is folded according to receiving clockwise or counterclockwise.

5. according to a kind of dilator with the folded utricule of receipts described in Claims 1-4 any one, it is characterised in that: Described utricule is the film type utricule that TPU material is made.

It is the most according to claim 5 a kind of with the dilator receiving folded utricule, it is characterised in that: utricule thickness is 0.05-0.2mm。

It is the most according to claim 1 a kind of with the dilator receiving folded utricule, it is characterised in that: described tight bundle For the PVC film band that heat seal is bonding.