Prostate dilator

Abstract

A prostate dilator belongs to the technical field of medical instruments and comprises a catheter, the front end of an imbedding end of the catheter is a hemispherical guide head, and a plurality of lubricant injection holes are formed in the periphery of the central point of the catheter; a medicament injection hole is formed in the catheter behind the guide head; a gas inlet and outlet hole is formed in the catheter of the air bag section, a lubricant tube, a medicament tube and an inflation tube are arranged in the catheter, the lubricant tube is communicated with the lubricant injection holes, the medicament tube is communicated with the medicament injection holes, and the inflation tube is communicated with the gas inlet and outlet hole; the lubricant tube, the medicament tube and the inflating tube respectively extend out of the tail part of the operation end and are respectively connected with an injector; the prostate dilator has the advantages that when the prostate dilator is propelled, lubricant can be injected while the prostate dilator is propelled, the air bag skin can be tightly attached to the sunken air bag section through the sunken portion, friction of the catheter to the inner wall of a prostate can be effectively reduced on the whole, and discomfort of a patient is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a prostate dilator. Background Art

[0002] The prostate is the largest of the male genital accessory glands. It is chestnut-shaped and located behind the pubic symphysis, within the pelvis. The prostate's tip is close to the pelvic floor muscles, and the portion surrounding the urethra is the external urethral sphincter. Prostate enlargement can obstruct the urethra. Severe prostate problems may require prostate enlargement surgery, which uses a dilator.

[0003] When existing dilators are advanced into the prostate, the guide tube's tip rubs against the prostate's inner wall, causing discomfort. While lubricants are typically applied before insertion, they are quickly removed by the prostate's inner wall at the entrance, reducing patient comfort during treatment. Furthermore, during advancement, the prostate's inner wall rubs against the balloon, creating friction that can also cause discomfort. Utility Model Content

[0004] The technical problem to be solved by the present utility model is to provide an expander that can inject lubricant around the guide head in real time in response to the above problems, so that the expander can continuously inject lubricant during the advancement process, thereby alleviating the patient's discomfort; at the same time, a recessed portion is provided at the position of the airbag, so that the airbag skin is located in the recessed portion when not inflated, thereby reducing friction with the inner wall of the prostate and further alleviating the patient's discomfort.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is a prostate dilator, including a catheter, one end of the catheter is an insertion end, and the other end is an operating end, the front end of the insertion end is a guide head, and the guide head is a hemispherical surface, and the center point of the hemispherical surface, that is, the periphery of the top of the guide head is provided with a plurality of lubricant injection holes, and the lubricant injection holes are located on the hemisphere of the guide head, so that the lubricant can be squeezed out from the periphery of the top of the guide head at the same time, and timely lubricated the inner wall of the prostate that is first contacted; the lubricant injection hole cannot be located on the side of the catheter behind the hemisphere where the insertion end is located, because the hemisphere position is the first to contact and rub the inner wall of the prostate, and it cannot be located on the top of the guide head, because the top is basically not in contact with the inner wall seam of the prostate, and from the top The extruded lubricant will only flow out in one direction, and there will be no lubricant in other directions around it; a medicine injection hole is provided on the catheter behind the guide head on the insertion end; the catheter section behind the insertion end is set as an airbag section, and an airbag skin is fixedly installed on the airbag section, and the catheter of the airbag section is provided with gas inlet and outlet holes, and the rear of the airbag section is the catheter body, and the tail end of the catheter body is the operating end; a lubricant tube, a medicine tube and an inflation tube are provided in the catheter, and the lubricant tube is connected to each lubricant injection hole, the medicine tube is connected to the medicine injection hole, and the inflation tube is connected to the gas inlet and outlet holes, and the lubricant tube, medicine tube and inflation tube respectively extend from the tail of the operating end and are respectively connected to the lubricant syringe, medicine syringe and gas syringe.

[0006] The number of the lubricant injection holes is 2-10. In order to avoid the lubricant injection hole having a too small aperture and to ensure that there is lubricant all around, it is preferred to set 4 lubricant injection holes and evenly distribute them around the center point of the hemispherical surface of the guide head.

[0007] The catheter of the balloon section is recessed inwardly; the depth of the recessed catheter of the balloon section is 1-5 times, preferably 2 times, the thickness of the balloon skin; in this way, when the catheter is pushed forward, the uninflated balloon skin will cling to the catheter of the balloon section and will not rub against the inner wall of the prostate.

[0008] A urine drainage hole is also provided on the catheter behind the guide head on the insertion end for draining urine or used waste liquid medicine. A urine tube is provided in the catheter, and the urine tube is externally connected to a urine bag.

[0009] The beneficial effect of the present utility model is that lubricant injection holes are provided around the top of the guide head of the prostate dilator. When the prostate dilator is advanced, lubricant can be injected while advancing, which can effectively reduce the friction of the guide head and the catheter as a whole on the inner wall of the prostate, thereby reducing the patient's discomfort. At the same time, a depression is provided on the balloon section of the catheter, which allows the balloon skin to fit tightly against the depressed balloon section. When the prostate dilator is advanced, the contact of the balloon skin with the inner wall of the prostate can be reduced, reducing the friction of the balloon skin with the inner wall of the prostate, thereby further reducing the patient's discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic perspective structural diagram of the overall prostate dilator of the present utility model.

[0011] Figure 2 This is a schematic perspective structural diagram of the overall structure of the prostate dilator of the utility model when the air bag is inflated.

[0012] Figure 3 This is a front structural diagram of the prostate dilator of the utility model when the air bag is inflated.

[0013] Figure 4 This is a schematic diagram of the structure of the prostate dilator of the present invention when a urine drainage hole is added.

[0014] In the figure: 1. Catheter, 2. Insertion end, 3. Operation end, 4. Guide head, 5. Lubricant injection hole, 6. Drug injection hole,

[0015] 7. Airbag section, 8. Airbag skin, 9. Gas inlet and outlet holes, 10. Catheter body, 11. Lubricant tube, 12. Drug tube, 13.

[0016] Inflation tube, 14. Urine drainage hole, 15. Urine tube. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the embodiments.

[0018] As shown in the figure, a prostate dilator is improved. The existing prostate dilator includes a catheter 1.

[0019] One end is the insertion end 2, and the other end is the operating end 3. The front end of the insertion end 2 is a guide head 4. In this embodiment, the guide head 4 is made into a hemispherical surface, so that the top of the guide head 4 is the center point of the hemispherical surface. In this embodiment, a plurality of lubricant injection holes 5 are provided around the top of the guide head, that is, the lubricant injection holes 5 are located on the hemisphere where the guide head 4 is located. In this way, the lubricant can be squeezed out from each lubricant injection hole 5 around the top of the guide head at the same time, and the inner wall of the prostate that is first contacted can be lubricated in time; in this place, the lubricant injection hole 5 cannot be located at the side position of the catheter 1 behind the hemisphere where the insertion end 2 is located. On the other hand, because the hemispherical position contacts and rubs the inner wall of the prostate first, it cannot be located at the top of the guide head, because the top is basically not in contact with the inner wall seam of the prostate, and the lubricant squeezed out from the top will only flow out in one direction, and there will be no lubricant in other directions around it. In this way, the part without lubricant will still make the patient uncomfortable; generally, the number of the lubricant injection holes 5 is set to 2-10. In order to avoid the aperture of the lubricant injection hole 5 being too small and to ensure that there is lubricant in all directions around the top of the guide head, this embodiment preferably sets 4 lubricant injection holes 5, and evenly distributes them around the center point of the hemispherical surface of the guide head 4.

[0020] A drug injection hole 6 is provided on the catheter 1 behind the guide head 4 on the insertion end 2; the catheter section behind the insertion end 2 is set as an airbag section 7, and an airbag skin 8 is fixedly installed on the airbag section 7. The catheter 1 of the airbag section 7 is provided with a gas inlet and outlet hole 9, and the rear of the airbag section 7 is a catheter body 10, and the tail end of the catheter body 10 is the operating end 3; in this embodiment, the catheter 1 of the airbag section 7 is recessed inwardly; generally, the depth of the inward recess of the catheter 1 of the airbag section 7 is set to 1-5 times the thickness of the airbag skin 8, and in this embodiment it is set to 2 times; when the catheter 1 is pushed forward, the uninflated airbag skin 8 will stick to the catheter of the airbag section 7, so that it will not rub against the inner wall of the prostate.

[0021] A lubricant tube 11, a medicine tube 12 and an inflation tube 13 are provided in the catheter 1. The lubricant tube 11 is connected to each lubricant injection hole 5, the medicine tube 12 is connected to the medicine injection hole 6, and the inflation tube 13 is connected to the gas inlet and outlet holes 9. The lubricant tube 11, the medicine tube 12 and the inflation tube 13 extend from the tail of the operating end 3 respectively, and are respectively connected to the lubricant syringe, the medicine syringe and the gas syringe.

[0022] Furthermore, a urine drainage hole 14 is provided on the catheter 1 behind the guide head 4 on the insertion end 2. A urine tube 15 is provided inside the catheter 1, and the urine tube 15 is externally connected to a urine bag.

[0023] When in use, first apply lubricant to the top of the guide head, and then push the prostate dilator into the prostate body. During the pushing process, inject lubricant while pushing so that there is lubricant along the entire pushing path. This can effectively reduce the friction of the dilator on the inner wall of the prostate. At the same time, since the catheter 1 where the airbag section 7 is located is concave inward, when the catheter 1 is pushed forward, the uninflated airbag skin 8 will stick to the catheter of the airbag section 7 and will not rub against the inner wall of the prostate, which can effectively reduce the patient's discomfort as a whole.

Claims

1. A prostate dilator, comprising a catheter, one end of which is an insertion end and the other end is an operating end, characterized in that The front end of the insertion end is a guide head, which is a hemispherical surface, and a number of lubricant injection holes are provided around the center point of the hemispherical surface; a drug injection hole is provided on the catheter behind the guide head on the insertion end; the catheter section behind the insertion end is set as an airbag section, and an airbag skin is fixedly installed on the airbag section, and the catheter of the airbag section is provided with gas inlet and outlet holes, and the rear of the airbag section is the catheter body, and the tail end of the catheter body is the operating end; a lubricant tube, a drug tube and an inflation tube are provided in the catheter, the lubricant tube is connected to each lubricant injection hole, the drug tube is connected to the drug injection hole, and the inflation tube is connected to the gas inlet and outlet holes, the lubricant tube, the drug tube and the inflation tube respectively extend from the tail of the operating end, and are respectively connected to the lubricant syringe, the drug syringe and the gas syringe.

2. The prostate dilator according to claim 1, characterized in that The number of the lubricant injection holes is 2-10.

3. The prostate dilator according to claim 2, characterized in that There are four lubricant injection holes, which are evenly distributed around the center point of the hemispherical surface of the guide head.

4. The prostate dilator according to claim 3, characterized in that The catheter of the balloon section is recessed inwardly.

5. The prostate dilator according to claim 4, characterized in that The depth of the inward depression of the catheter of the balloon section is 1-5 times the thickness of the balloon skin.

6. The prostate dilator according to claim 5, characterized in that The depth of the inward depression of the catheter of the balloon section is twice the thickness of the balloon skin.

7. The prostate dilator according to claim 6, characterized in that A urine drainage hole is also provided on the catheter behind the guide head on the insertion end. A urine tube is provided in the catheter, and the urine tube is externally connected to a urine bag.

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