CN113786550A

CN113786550A - Self-guiding self-lubricating catheter

Info

Publication number: CN113786550A
Application number: CN202110882546.4A
Authority: CN
Inventors: 高玉亮
Original assignee: Individual
Current assignee: Hunan Reborn Medical Science And Technology Development Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2021-12-14
Anticipated expiration: 2041-08-02
Also published as: CN113786550B

Abstract

The invention discloses a self-guiding self-lubricating catheter, which belongs to the field of catheters, and is characterized in that gas is introduced into a guide air pipe to push a three-section hose to slide in along a urethra, and meanwhile, in the unfolding and extending process of the three-section hose, a sterile lubricant in the three-section hose overflows under the action of self pressure to synchronously lubricate the urethra of a patient, so that the three-section hose has flexibility in the urethra and is not easy to damage the urethra, and simultaneously under the combined action of a lubricating effect and gas thrust, the resistance of the urethra is broken through and the three-section hose gradually slides into the urethra.

Description

Self-guiding self-lubricating catheter

Technical Field

The invention relates to the field of catheters, in particular to a self-guiding self-lubricating catheter.

Background

The catheter is a pipeline which is inserted into the bladder from the urethra so as to drain urine, can be inserted into the bladder from the urethra so as to drain the urine, and after the catheter is inserted into the bladder, an air bag is arranged at the end close to the end of the catheter to fix the catheter to stay in the bladder and not to be separated easily, and the drainage tube is connected with a urine bag to collect the urine.

The urethral catheter is generally made of PVC catheters, raw rubber catheters, silicon rubber catheters, natural latex catheters and the like, the PVC catheters and the raw rubber catheters are hard and are harmful to human bodies, the silicon rubber catheters and the natural latex catheters are soft and harmless to human bodies, but are not easy to insert into the urinary bladder, and particularly, the urethral catheter is seriously blocked by some old male patients due to the fact that the prostate of the old male patients is enlarged, the soft urethral catheter is difficult to insert into the urinary bladder, the operation time is influenced, and more pain is caused to the patients.

Therefore, it is important to design a catheter which is convenient to insert into the urethra, has enough flexibility and is not easy to injure the human body.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a self-guiding self-lubricating catheter which can push a three-section hose to slide in along a urethra by guiding gas into a stretching gas pipe, meanwhile, sterile lubricant overflows from the three-section hose to synchronously lubricate the urethra of a patient, and the self-guiding self-lubricating catheter can be quickly guided into the urethra by combining the lubricating effect and the gas thrust on the basis of keeping the three-section hose to have certain flexibility and not easily damaging the urethra.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A self-guiding self-lubricating catheter comprises a drainage tube, a water injection tube and an elastic bag, wherein the water injection tube is fixedly connected to the side end of the drainage tube, a water delivery tube communicated with the water injection tube and the elastic bag is arranged between the water injection tube and the elastic bag, the self-guiding self-lubricating catheter also comprises a three-section hose, the three-section hose comprises a rear hose, a liquid storage film sleeve and a front hose which are sequentially arranged, one end of the rear hose is fixedly connected with one end of the drainage tube, one end, far away from the rear hose, of the front hose is provided with a plurality of uniformly distributed urine inlet holes, two ends of the liquid storage film sleeve are respectively fixedly connected with the inner walls of the rear hose and the front hose, sterile lubricant is filled in the liquid storage film sleeve, the outer end of the liquid storage film sleeve is fixedly connected with a plurality of uniformly distributed overflow contacts, the overflow contacts penetrate through the rear hose and extend to the outer side of the rear hose, a soft seal is arranged on the outer side of the overflow contacts, and an extension air pipe is arranged in the three-section hose.

Furthermore, the overflow contact comprises an outer wrapping film fixedly connected to the outer end of the liquid storage film sleeve, the outer wrapping film penetrates through the liquid storage film sleeve and is communicated with the inside of the liquid storage film sleeve, a plurality of through holes in one-to-one correspondence with the overflow contacts are formed in the rear hose, and the outer wrapping film penetrates through the through holes and extends out of the outer side of the rear hose.

Further, an air bag ball is arranged inside the outer wrapping film, the air bag ball is located on the outer side of the rear hose, and the diameter of the outer ring of the air bag ball is larger than the aperture of the through hole.

Furthermore, the outer end of the air bag ball is fixedly connected with a plurality of uniformly distributed membrane breaking wires, and one end of each membrane breaking wire, which is far away from the air bag ball, penetrates through the outer wrapping membrane and is fixedly connected with the inner surface of the soft sealing strip.

Further, the both sides of through-hole all are equipped with from type paper, from the surface of type paper fixed connection in back hose, the lower extreme of soft seal strip is scribbled and is equipped with the viscose layer, soft seal strip passes through the viscose layer and bonds with a pair of surface from type paper respectively.

Furthermore, the length of the unfolded soft seal is smaller than the section circumference of the rear hose, and the liquid storage film sleeve between the overflow contact and the front hose is in a normal straight state.

Furthermore, the extension trachea includes the end ball, aerify membrane cover and the intake pipe that distribute in proper order along preceding hose to drainage tube direction, aerify membrane cover fixed connection between end ball and intake pipe, it communicates with each other with the intake pipe to aerify the membrane cover.

Furthermore, the elastic bag is fixedly connected to the outer end of the front hose, the water delivery pipe is located inside the three-section hose, one end of the water delivery pipe is fixedly connected to the drainage tube and communicated with the water injection pipe, and the other end of the water delivery pipe is fixedly connected to the front hose and communicated with the elastic bag.

Further, the length of the inflatable membrane sleeve is larger than the maximum extension length of the three-section type hose.

A self-guiding self-lubricating catheter, its application method is:

s1, preparing needed tools by medical staff, and preparing a series of preparation work of washing hands, wearing mask gloves, sterilizing the tools and assembling the tools;

s2, lubricating the front hose by using a sterile lubricant;

s3, using forceps to clamp the front hose and slowly insert the front hose into the urethra of the patient until the soft seal reaches the position of the urethral orifice;

s4, manually tearing off the soft seal, and slowly filling air into the extension air pipe;

s5, the three-section hose is pushed by the extension air pipe to extend, so that the three-section hose slowly extends into the urethra until the elastic sac reaches the bladder of the patient;

s6, injecting sterile water into the water injection pipe to make the elastic bag expand by filling water, and fixing the three-section hose inside the bladder;

and S7, releasing the gas in the extension trachea, taking the gas out of the three-section hose, and introducing the urine in the bladder of the patient into the urine bag through the three-section hose.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is through leading-in gas in to the induced draft trachea, make it promote the syllogic hose and slide in along the urethra, at the syllogic hose expansion extension in-process simultaneously, its inside aseptic emollient overflows under self pressure effect, lubricate patient's urethra in step for the syllogic hose had both the compliance inside the urethra, be difficult for causing the injury to the urethra, combine lubricated effect and gaseous thrust simultaneously, break through the urethra resistance, go deep into inside the urethra, when improving this invention and leading-in efficiency in the urethra, effectively reduce patient's uncomfortable and feel.

(2) The outer envelope is limited outside the rear hose through the air bag ball, the connection between the liquid storage film sleeve and the rear hose is realized, the rear hose and the liquid storage film sleeve are not easy to be mutually far away before use, the liquid storage film sleeve is in a contraction state and is stored in the inner side of the rear hose and the front hose, and the three-section hose is effectively guaranteed to be in the contraction state before use.

(3) Tear the flexible seal strip through manual, the flexible seal strip drives rupture of membranes silk and causes simultaneously to outer envelope and gasbag ball to drag, the gasbag ball breaks, gaseous effluvium, the volume shrinks, outer envelope loses limiting displacement, make back hose and preceding hose keep away from each other, the extension is expanded to the stock solution membrane cover, whole syllogic hose length extension promptly, can deepen inside the patient urethra gradually, and expand the extension in-process at the stock solution membrane cover, its inside aseptic emollient is under stock solution membrane cover squeezing action, the outer envelope of accessible spills over, lubricate the patient urethra, thereby effectively reduce patient's uncomfortable sense.

(4) Through the intake pipe to aerifing the inside gas that dashes of membrane cover for aerifing the membrane cover and expanding gradually, produce thrust to the end ball, thereby make the end ball slide in along the urethra, at this moment, the syllogic hose had both had the compliance in urethra inside, was difficult for causing the injury to the urethra, simultaneously, can break through the urethra resistance again, slides in inside the urethra.

Drawings

FIG. 1 is a perspective view of the present invention prior to use;

FIG. 2 is a perspective view of the present invention with the flexible seal removed;

FIG. 3 is a perspective view of the present invention in use;

FIG. 4 is a partial perspective view of the present invention at the point of the soft seal;

FIG. 5 is a schematic side view of the present invention prior to use;

FIG. 6 is a schematic side view of the present invention in use;

FIG. 7 is a schematic view of a partial side view of a liquid storage membrane according to the present invention;

FIG. 8 is a schematic view of the structure at A in FIG. 7;

FIG. 9 is a schematic front view of the flash contact of the present invention;

fig. 10 is a schematic view of a variation of the present invention in use.

The reference numbers in the figures illustrate:

1 drainage tube, 2 water injection tube, 31 rear hose, 3101 through hole, 32 front hose, 33 liquid storage film sleeve, 4 elastic bag, 5 extending air tube, 51 end ball, 52 inflation film sleeve, 53 air inlet tube, 6 overflow contact, 61 outer wrapping film, 62 air bag ball, 63 broken film wire, 7 soft seal and 8 release paper.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1, a self-guiding and self-lubricating catheter comprises a drainage tube 1, a water injection tube 2, an elastic bag 4 and a three-section hose, wherein the water injection tube 2 is fixedly connected to the side end of the drainage tube 1, and a water delivery tube is arranged between the water injection tube 2 and the elastic bag 4 and is communicated with the drainage tube and the elastic bag.

Referring to fig. 3 and 5, the three-section hose includes a rear hose 31, a liquid storage film sleeve 33 and a front hose 32 which are sequentially arranged, one end of the rear hose 31 is fixedly connected with one end of the drainage tube 1, one end of the front hose 32, which is far away from the rear hose 31, is provided with a plurality of uniformly distributed urine inlet holes, two ends of the liquid storage film sleeve 33 are respectively fixedly connected with inner walls of the rear hose 31 and the front hose 32, and the liquid storage film sleeve 33 is filled with a sterile lubricant.

Referring to fig. 2 and 4, the outer end of the liquid storage film sleeve 33 is fixedly connected with a plurality of overflow contacts 6 which are uniformly distributed, the overflow contacts 6 penetrate through the rear hose 31 and extend to the outer side of the rear hose 31, the outer side of the rear hose 31 is provided with a soft seal 7, and the soft seal 7 wraps the outer side of the overflow contacts 6.

Referring to fig. 8, the overflow contact 6 includes an outer film 61 fixedly connected to an outer end of the liquid storage film sleeve 33, the outer film 61 penetrates through the liquid storage film sleeve 33 and communicates with an inside of the liquid storage film sleeve 33, the rear hose 31 is provided with a plurality of through holes 3101 corresponding to the overflow contacts 6 one by one, the outer film 61 penetrates through the through holes 3101 and extends out of the rear hose 31, an air bag ball 62 is disposed inside the outer film 61, the air bag ball 62 is located outside the rear hose 31, an outer ring diameter of the air bag ball 62 is larger than a hole diameter of the through holes 3101, the outer film 61 is limited outside the rear hose 31 by the air bag ball 62, so as to connect the liquid storage film sleeve 33 and the rear hose 31, the rear hose 31 and the liquid storage film sleeve 33 are not easy to be separated from each other before use, the liquid storage film sleeve 33 is stored inside the rear hose 31 and the front hose 32 in a contracted state, that the three-segment hose is effectively ensured to be in a contracted state before use.

Referring to fig. 8, the outer end of the balloon 62 is fixedly connected with a plurality of membrane-breaking wires 63 which are uniformly distributed, one end of the membrane-breaking wire 63 far away from the balloon 62 penetrates through the outer envelope 61 and is fixedly connected with the inner surface of the soft seal 7, when in use, the soft seal 7 is torn off manually, the soft seal 7 drives the membrane breaking wire 63 to simultaneously drag the outer envelope 61 and the air bag ball 62, the air bag ball 62 is broken, the air is dispersed, the volume is reduced, the outer envelope 61 is not limited, so that the rear hose 31 and the front hose 32 can be far away from each other, the liquid storage film sleeve 33 is unfolded and extended, namely, the whole three-section hose is extended in length and can gradually go deep into the urethra of the patient, and in the process of unfolding and extending the liquid storage film sleeve 33, the sterile lubricant in the liquid storage film sleeve 33 can overflow through the outer wrapping film 61 under the extrusion effect to lubricate the urethra of the patient, so that the discomfort of the patient is effectively reduced.

Referring to fig. 8, release paper 8 is disposed on both sides of the through hole 3101, the release paper 8 is fixedly connected to the outer surface of the rear hose 31, an adhesive layer is coated on the lower end of the flexible seal 7, the flexible seal 7 is bonded to the outer surfaces of the pair of release paper 8 through the adhesive layer, the flexible seal 7 can be conveniently torn off from the rear hose 31 through the release paper 8, and the flexible seal 7 and the rear hose 31 are not easily torn.

Referring to fig. 4, the length of the unfolded soft seal 7 is less than the circumference of the cross section of the rear hose 31, so that the soft seal 7 is not easy to completely wrap the rear hose 31, and a certain gap is formed between two ends of the soft seal 7, so that a medical worker can conveniently pinch one end of the soft seal 7 to tear it off.

Referring to fig. 4, the ends of the rear hose 31 and the front hose 32 close to each other are in contact with each other, the liquid storage film sleeve 33 located between the overflow contact 6 and the front hose 32 is in a normal straight state, and the length of the liquid storage film sleeve 33 at the position is limited, so that the rear hose 31 and the front hose 32 are not easily separated from each other before use.

Referring to fig. 5 and 6, an extension tube 5 is disposed inside the three-section hose, the extension tube 5 includes an end ball 51, an inflatable membrane sleeve 52 and an air inlet tube 53, which are sequentially distributed along the direction from the front hose 32 to the drainage tube 1, the inflatable membrane sleeve 52 is fixedly connected between the end ball 51 and the air inlet tube 53, the inflatable membrane sleeve 52 is communicated with the air inlet tube 53, when in use, air is injected into the inflatable membrane sleeve 52 through the air inlet tube 53, so that the inflatable membrane sleeve 52 gradually expands and extends, and thrust is generated on the end ball 51, so that the end ball 51 slides in along the urethra.

The length of the inflatable membrane sleeve 52 is greater than the maximum extension length of the three-section hose, namely, the inflatable membrane sleeve 52 has enough length, so that the front hose 32 can be pushed into the bladder of the patient conveniently, when urine flows out along the three-section hose, the front hose 32 is shown to enter the bladder, at the moment, the three-section hose can continuously slide into the bladder for a certain distance, the elastic bag 4 is ensured to completely enter the bladder, and the elastic bag 4 is convenient to expand in the bladder.

Referring to fig. 10, the elastic bag 4 is fixedly connected to the outer end of the front hose 32, the water pipe is located inside the three-section hose, one end of the water pipe is fixedly connected to the drainage tube 1 and is communicated with the water injection tube 2, the other end of the water pipe is fixedly connected to the front hose 32 and is communicated with the elastic bag 4, after the front hose 32 is sent into the bladder of the patient, sterile water is injected into the elastic bag 4 through the water injection tube 2 and the water pipe, so that the elastic bag 4 is expanded and blocked at the bladder opening, the front hose 32 is fixed in the bladder, the opening of the water injection tube 2 is sealed after the water injection is completed, and the water pipe has enough length to adapt to the extension process of the three-section hose.

Referring to fig. 10, a self-guiding self-lubricating catheter is used in the method of:

s1, preparing needed tools by medical staff, and performing a series of preparation work such as washing hands, wearing mask gloves, sterilizing the tools, assembling the tools and the like;

s2, lubricating the front hose 32 with a sterile lubricant;

s3, using forceps to clamp the front hose 32 and slowly insert the front hose into the urethra of the patient until the soft seal 7 reaches the position of the urethral orifice;

s4, manually tearing off the soft seal 7, and slowly filling air into the air guide pipe 5;

s5, the stretching air pipe 5 pushes the three-section hose to stretch, so that the three-section hose slowly extends into the urethra until the elastic bag 4 reaches the bladder of the patient;

s6, injecting sterile water into the water injection pipe 2 to make the elastic bag 4 expand by filling water, and fixing the three-section hose inside the bladder;

and S7, releasing the air in the extension air pipe 5, taking the air out of the three-section hose, and introducing the urine in the bladder of the patient into the urine bag through the three-section hose.

According to the invention, the gas is introduced into the extension gas pipe 5 to push the three-section hose to slide in along the urethra, and meanwhile, in the process of unfolding and extending the three-section hose, the sterile lubricant in the three-section hose overflows under the action of self pressure to synchronously lubricate the urethra of a patient, so that the three-section hose has flexibility in the urethra and is not easy to damage the urethra, meanwhile, the lubrication effect and the gas thrust are combined to break through the resistance of the urethra and go deep into the urethra, and the discomfort of the patient is effectively reduced while the introduction efficiency in the urethra of the invention is improved.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a self-conductance is from lubricating formula catheter, includes drainage tube (1), water injection pipe (2) and elasticity bag (4), water injection pipe (2) fixed connection is at the side of drainage tube (1), be equipped with between water injection pipe (2) and elasticity bag (4) with the two communicating raceway, its characterized in that: still include the syllogic hose, the syllogic hose is including back hose (31), stock solution membrane cover (33) and preceding hose (32) that arrange in proper order, the one end of back hose (31) and the one end fixed connection of drainage tube (1), the one end that back hose (31) were kept away from in preceding hose (32) is seted up a plurality of evenly distributed's urine inlet, the both ends of stock solution membrane cover (33) respectively with the inner wall fixed connection of back hose (31) and preceding hose (32), the inside packing of stock solution membrane cover (33) has aseptic emollient, the outer end fixed connection of stock solution membrane cover (33) has a plurality of evenly distributed's overflow contact (6), overflow contact (6) run through back hose (31) and extend to its outside, back hose (31) outside is equipped with soft strip of paper (7), soft strip of paper used for sealing (7) parcel is in the outside of overflow contact (6), and an extension air pipe (5) is arranged in the three-section type hose.

2. A self-guiding, self-lubricating urinary catheter according to claim 1, wherein: the overflow contact (6) comprises an outer wrapping film (61) fixedly connected to the outer end of the liquid storage film sleeve (33), the outer wrapping film (61) penetrates through the liquid storage film sleeve (33) and is communicated with the inside of the liquid storage film sleeve, a plurality of through holes (3101) corresponding to the overflow contacts (6) one by one are formed in the rear hose (31), and the outer wrapping film (61) penetrates through the through holes (3101) and extends out of the outer side of the rear hose (31).

3. A self-guiding, self-lubricating urinary catheter according to claim 2, wherein: an air bag ball (62) is arranged inside the outer wrapping film (61), the air bag ball (62) is located on the outer side of the rear hose (31), and the diameter of the outer ring of the air bag ball (62) is larger than the aperture of the through hole (3101).

4. A self-guiding, self-lubricating urinary catheter according to claim 3, wherein: the outer end of the air bag ball (62) is fixedly connected with a plurality of uniformly distributed membrane breaking wires (63), and one end, far away from the air bag ball (62), of each membrane breaking wire (63) penetrates through the outer wrapping membrane (61) and is fixedly connected with the inner surface of the soft sealing strip (7).

5. A self-guiding, self-lubricating urinary catheter according to claim 2, wherein: the both sides of through-hole (3101) all are equipped with from type paper (8), from the surface of type paper (8) fixed connection in back hose (31), the lower extreme of soft seal (7) is scribbled and is equipped with the viscose layer, soft seal (7) pass through the viscose layer respectively with a pair of surface bonding from type paper (8).

6. A self-guiding, self-lubricating urinary catheter according to claim 1, wherein: the length of the unfolded soft seal (7) is smaller than the section circumference of the rear hose (31), and a liquid storage film sleeve (33) positioned between the overflow contact (6) and the front hose (32) is in a normal straight state.

7. A self-guiding, self-lubricating urinary catheter according to claim 1, wherein: the extension air pipe (5) comprises an end ball (51), an inflatable membrane sleeve (52) and an air inlet pipe (53) which are sequentially distributed along the direction from the front hose (32) to the drainage pipe (1), the inflatable membrane sleeve (52) is fixedly connected between the end ball (51) and the air inlet pipe (53), and the inflatable membrane sleeve (52) is communicated with the air inlet pipe (53).

8. A self-guiding, self-lubricating urinary catheter according to claim 1, wherein: the elastic bag (4) is fixedly connected to the outer end of the front hose (32), the water conveying pipe is located inside the three-section hose, one end of the water conveying pipe is fixedly connected to the drainage tube (1) and communicated with the water injection tube (2), and the other end of the water conveying pipe is fixedly connected to the front hose (32) and communicated with the elastic bag (4).

9. A self-guiding, self-lubricating urinary catheter according to claim 7, wherein: the length of the inflatable membrane sleeve (52) is larger than the maximum extension length of the three-section type hose.

10. A self-guiding, self-lubricating urinary catheter according to any one of claims 1 to 9, wherein: the using method comprises the following steps:

s2, lubricating the front hose (32) by using a sterile lubricant;

s3, using forceps to clamp the front hose (32) and slowly insert the front hose into the urethra of the patient until the soft seal (7) reaches the position of the urethral orifice;

s4, manually tearing off the soft seal (7), and slowly filling air into the extension air pipe (5);

s5, the three-section hose is pushed by the extension air pipe (5) to extend, so that the three-section hose slowly extends into the urethra until the elastic sac (4) reaches the bladder of the patient;

s6, injecting sterile water into the water injection pipe (2) to enable the elastic bag (4) to be inflated by water, and fixing the three-section hose inside the bladder;

s7, releasing the gas in the extension tube (5), taking the gas out of the three-section hose, and introducing the urine in the bladder of the patient into the urine bag through the three-section hose.