CN113289219A - Device for pressing prostate in urethra - Google Patents
Device for pressing prostate in urethra Download PDFInfo
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- CN113289219A CN113289219A CN202110566438.6A CN202110566438A CN113289219A CN 113289219 A CN113289219 A CN 113289219A CN 202110566438 A CN202110566438 A CN 202110566438A CN 113289219 A CN113289219 A CN 113289219A
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- passage
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- prostate
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- 210000003708 urethra Anatomy 0.000 title claims abstract description 69
- 210000002307 prostate Anatomy 0.000 title claims abstract description 62
- 238000003825 pressing Methods 0.000 title claims abstract description 48
- 239000002775 capsule Substances 0.000 claims description 77
- 230000006835 compression Effects 0.000 claims description 66
- 238000007906 compression Methods 0.000 claims description 66
- 239000012530 fluid Substances 0.000 claims description 15
- 238000007915 intraurethral administration Methods 0.000 claims description 10
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 3
- 230000006378 damage Effects 0.000 description 11
- 206010004446 Benign prostatic hyperplasia Diseases 0.000 description 8
- 208000004403 Prostatic Hyperplasia Diseases 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000027939 micturition Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 210000002700 urine Anatomy 0.000 description 6
- 230000010339 dilation Effects 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 208000024891 symptom Diseases 0.000 description 5
- 206010065584 Urethral stenosis Diseases 0.000 description 4
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- 229920002614 Polyether block amide Polymers 0.000 description 1
- 208000001647 Renal Insufficiency Diseases 0.000 description 1
- 208000006568 Urinary Bladder Calculi Diseases 0.000 description 1
- 208000007097 Urinary Bladder Neoplasms Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000006907 apoptotic process Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000000210 bladder calculus Diseases 0.000 description 1
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- 238000004140 cleaning Methods 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002651 drug therapy Methods 0.000 description 1
- 206010013990 dysuria Diseases 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000006750 hematuria Diseases 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002757 inflammatory effect Effects 0.000 description 1
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- 238000000608 laser ablation Methods 0.000 description 1
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- 210000005267 prostate cell Anatomy 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1078—Urinary tract
- A61M2210/1089—Urethra
- A61M2210/1096—Male
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/16—Male reproductive, genital organs
- A61M2210/166—Prostate
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model provides a device of pressing prostate in urethra, is rectangular form, gets into the head of urethra prostate portion when using, keeps somewhere in external afterbody and the intermediate part of connecting head and afterbody, its characterized in that: the top end of the head of the device is connected with an expandable cap-shaped top end bag body, and a space between the inner surface of the top end bag body and the outer surface of the top end of the head of the device is a top end bag body inner cavity; the top balloon inner cavity is formed by the inner surface of the inflatable part of the top balloon and the part of the outer surface of the top end of the head, which is covered by the inflatable part of the top balloon; the top of the top balloon is closed from the blind end to the outside, and the average outer diameter of the part between the farthest point at the top of the top balloon and the farthest point at the top of the head of the device is smaller than the maximum outer diameter of the top of the head of the device; the top utricule inner chamber links to each other with the external world through first route, and first route has at least one first route internal opening and top utricule inner chamber intercommunication to and at least one first route external opening and exterior space intercommunication.
Description
Technical Field
The invention relates to a device for pressing prostate in urethra, belonging to the technical field of medical instruments.
Background
The prostate is an organ of a human body which grows with age, a thicker fibrous capsule is bound outside the prostate, and the prostate can be pressed towards the urethra after the prostate gland grows, so that the resistance of the urethra is increased, and a series of urination related symptoms are caused; the prostatic hyperplasia is a common disease of old men, is a progressive disease, and the incidence rate increases year by year along with the aging development of population, and the clinical symptoms are not only manifested in unsmooth urination, increased nocturia and reduced life quality, but also cause various complications and even endanger life, such as prostatic hyperplasia, urinary system infection, bladder calculus, hematuria, urine retention, bladder diverticulum, bladder tumor, renal insufficiency, cardiovascular and cerebrovascular system diseases or aggravation of the original internal diseases.
The treatment purpose of the prostatic hyperplasia is to improve urination symptoms, relieve urinary tract obstruction, recover urination function and reduce the harm to the organism and the occurrence of complications; the current methods for treating prostatic hyperplasia mainly comprise: the method mainly comprises the steps of drug therapy, suprapubic transvesicular prostatectomy, transurethral laser ablation, high-energy focused ultrasound therapy, transurethral balloon dilatation of the prostate and cystostomy, wherein the transurethral resection of the prostate is used as the treatment method, but the treatment method is traumatic treatment, the treatment aim is realized by mainly removing a part of glands of the prostate of a patient and further enlarging the urethra, the wound is large, the requirement on the physique of the patient is higher, for some old patients, the wound caused by the mode is difficult to bear, the risk is higher, and meanwhile, the incision is larger, the operation time of an operator is longer, and the pain of the patient is further increased.
Although the technology for treating the patients with prostatic hyperplasia clinically through the urethral columnar water sac prostate dilation at present is relatively mature, the prostate capsule surrounding the urethra is dilated and cracked by using a columnar water sac catheter, the constraint of the capsule on the posterior urethra section of the prostate is relieved, the urethra section is widened, the resistance of the urethra is reduced, and the aim of naturally urinating is fulfilled; however, the operation of catheter implantation is a serious stimulation to the urethra, the endourethral membrane is sheared when the front end of the catheter is pushed, the prostatic urethra is seriously contused and damaged, the urethral structure is changed instantly, and the prostatic capsule can be dilated and cracked when the water sac is expanded immediately at the moment, but the urethral damage is aggravated, the urethral structure is continuously damaged, the lower urinary tract infection is induced or aggravated, and the functions of the lower urinary tract or even the organs of the whole body are further influenced.
In order to avoid or reduce the serious damage of the transurethral columnar water sac prostate dilation and other methods to the urethra of a patient, a device for pressing the prostate in the urethra, which can not cause shearing damage to the inner membrane of the urethra when the prostate part of the urethra is dilated, is urgently needed to be developed, and the safety of the patient is really guaranteed.
Disclosure of Invention
The invention aims to provide a device for pressing prostate in urethra, which is in a long strip shape and comprises a head part entering the prostate part of urethra when in use, a tail part remained outside the body and a middle part connecting the head part and the tail part, wherein the top end of the head part of the device is connected with an expandable top end capsule body in a cap shape, the space between the inner surface of the top end capsule body and the outer surface of the top end of the head part of the device is a top end capsule body inner cavity, one side of the top end capsule body, which is connected with the outer surface of the top end of the head part, is; the bottom of the top airbag is connected with the outer surface of the top end of the head, is a connecting part of the top airbag, and comprises a top airbag inflatable part at the top of the top airbag; the top balloon inner cavity is formed by the inner surface of the inflatable part of the top balloon and the part of the outer surface of the top end of the head, which is covered by the inflatable part of the top balloon; the top of the top balloon is closed from the blind end to the outside, and the average outer diameter of the part between the farthest point at the top of the top balloon and the farthest point at the top of the head of the device is smaller than the maximum outer diameter of the top of the head of the device; the top end sac body inner cavity is connected with the outside through a first passage, the first passage is provided with at least one first passage inner opening communicated with the top end sac body inner cavity, and at least one first passage outer opening communicated with the external space; the number of the first path may be one or more.
When the top end of the head of the device is placed into the urethra and is pushed forwards, the fluid is difficult to pass through when the head of the device is blocked at the narrow part of the urethra, the fluid is filled into the cavity of the top end capsule body through the first passage to be expanded, the expansion is relieved, the top end of the head of the device is further pushed into the urethra quickly, the top end of the head passes through the urethra which is just expanded at the moment, so that the injury to the narrow urethra is avoided, the top end of the head of the device is pushed to the proper position of the prostatic urethra part immediately, the prostatic urethra is expanded for many times or continuously, and the prostatic gland which is pressed and shaped after the device is withdrawn after treatment is ended cannot be quickly restored in a short time, so that the difficulty in urination caused by hyperplasia and hypertrophy of the prostate is relieved.
In order to facilitate the filling and expansion of the top end capsule to play a role in dilating the narrow prostate part of the urethra, a hollow-capsule-shaped top end capsule power unit is arranged on the surface of the tail part of the device or the middle part close to the tail part, the top end capsule power unit can extrude the top end capsule power unit to fill fluid in the top end capsule to expand the top end capsule, and the inner cavity of the top end capsule power unit is communicated with the outer opening of the first passage.
The top end utricule power pack for filling into top end utricule inner chamber is equipped with at least one and can be covered by the finger to the outer opening on, and top end utricule power pack inner chamber is through this to outer opening and outside intercommunication.
When the urethral dilator is used, the finger covers the external opening and simultaneously extrudes the top end sac power unit, and because the external opening is closed by the finger, the gas in the inner cavity of the top end sac power unit is extruded to the inner cavity of the top end sac through the first passage and is inflated to expand the narrow urethra; stopping the extrusion then top utricule power unit recovers, and the gas that gets into top utricule inner chamber is inhaled back top utricule power unit inner chamber, also can make the gas that gets into top utricule inner chamber push back top utricule power unit inner chamber because of the elastic restoring force of top utricule, also can relieve the finger to the outer open-ended closure and make the gas and the outside intercommunication of top utricule power unit inner chamber, finally make the top utricule resume from the inflation state.
Furthermore, an expandable pressing bag body is arranged on the outer side of the head of the device, the inner cavity of the pressing bag body is connected with the outside through a second passage, and the second passage is provided with at least one second passage inner opening communicated with the pressing bag body inner cavity and at least one second passage outer opening positioned in the middle part or the tail part of the device communicated with the external space.
Furthermore, at least two expandable circumferential compression bag bodies which are arranged along the axial direction of the device are arranged on the head of the device, the inner cavities of the circumferential compression bag bodies are respectively connected with the outside through respective second passages, the second passages are provided with at least one second passage inner opening which is communicated with the inner cavities of the circumferential compression bag bodies and at least one second passage outer opening which is positioned in the middle part or the tail part of the device and is communicated with the external space.
In order to facilitate the flushing or drainage of the device, at least one opening between the circumferential pressing bag bodies at the head of the device is used for flushing or drainage, the opening between the circumferential bag bodies is connected with the outside through a third passage, and the third passage is provided with at least one third passage outer opening positioned at the middle part or the tail part of the device and communicated with an external space.
The other structure is that the head of the device is provided with a plurality of pressing bag bodies, the head of the device is provided with at least two expandable longitudinal pressing bag bodies distributed along the circumference of the device, the inner cavities of the longitudinal pressing bag bodies are respectively connected with the outside through respective second passages, the second passages are provided with at least one second passage inner opening communicated with the inner cavity of the longitudinal pressing bag body and at least one second passage outer opening positioned in the middle part or the tail part of the device communicated with the external space; at least one longitudinal inter-sac opening for flushing and/or drainage is arranged between the longitudinal pressing sac bodies, the longitudinal inter-sac opening is connected with the outside through a third passage, and the third passage is provided with at least one third passage outer opening communicated with the external space and positioned in the middle part or the tail part of the device.
To enhance the outward strength of the tip balloon during its travel, a portion of the tip of the device head extends into the tip balloon lumen, which increases the strength of the tip balloon portion, making it easier for the tip balloon to enter the stricture of the prostatic urethra.
The invention has the beneficial effects that: the top capsule body of the head of the device can firstly extend into a narrow area and push away the endourethral membrane at the narrow position in the radial direction, the prostate is properly pressed and fully drained on the premise of not expanding the endourethral membrane, and comprehensive means such as changing life style and the like are added to relieve symptoms while treatment is performed as far as possible, so that the injury to the narrow urethra is avoided, and the prostate can be pressed for many times or continuously; the strip-shaped device is not provided with a urine inlet and a wide urine drainage channel, the outer diameter can be obviously reduced relative to the catheter, and the injury to the urethra is slight; and the symptoms caused by the prostatic hyperplasia are good and bad, and a soft intervention mode similar to intermittent cleaning catheterization can become an optimal scheme for patients with prostatic hyperplasia, so that the pain caused by various drastic treatment means is eliminated, and the retention of the catheter after the prostate dilatation treatment is avoided or reduced to the greatest extent.
Drawings
The drawings, which do not limit the invention, are as follows:
FIG. 1A: pattern of hyperplasia and hypertrophy of prostate
FIG. 1B: the invention has a schematic structure in embodiment 1
FIG. 1C: schematic diagram of top-end capsule structure in embodiment 1 of the present invention
FIG. 1D: the schematic structural diagram of the power unit of the top balloon capable of inflating and expanding the top balloon in embodiment 1 of the invention
FIG. 1E: schematic diagram of prior art catheter head entering urethral stricture
FIG. 1F: the invention is illustrated in example 1 with the tip balloon entering the urethral stricture
FIG. 1G: example 1 of the invention the inflation of the tip balloon into the urethral stricture
FIG. 1H: example 1 of the present invention is a schematic illustration of the expanded state of the apical capsule in the prostatic urethra
FIG. 2: the invention in embodiment 2 is a schematic diagram of the external opening on the power unit of the top capsule
FIG. 3A: the invention has a structure in embodiment 3
FIG. 3B: schematic diagram of the expansion state of the compression balloon in embodiment 3 of the invention
FIG. 3C: example 3 of the present invention is a schematic view of the expanded state of the compression balloon in the prostatic urethra
FIG. 4A: the invention has a structure in embodiment 4
FIG. 4B: schematic diagram of the expansion state of the compression balloon in embodiment 4 of the invention
FIG. 4C: example 4 of the present invention is a schematic view of the expanded state of the compression balloon in the prostatic urethra
FIG. 5A: the invention has a schematic structure in example 5
FIG. 5B: schematic diagram of the expansion state of the compression balloon in embodiment 5 of the invention
FIG. 5C: the invention is illustrated in example 5 by the inflation of the compression balloon within the urethra at the prostate region
FIG. 6: the invention in embodiment 6 is a part of the head top end extends to the structure of the top end capsule cavity
The specific implementation mode is as follows:
example 1:
referring to fig. 1A, showing urethra 01, prostate 02, bladder cavity 03, prostatic hyperplasia enveloping urethra compresses urethra causing obstruction and dysuria.
Fig. 1B-1H show a device for intraurethral compression of the prostate, which is elongated and includes a head 11 entering the prostatic urethra during use, a tail 12 remaining outside the body and an intermediate portion 13 connecting the head 11 and the tail 12, unlike the existing clinically used transurethral columnar water-sac prostate expander device, the top 111 of the head of the device is connected with an inflatable top balloon 14 in the shape of a nipple cap, the space between the inner surface of the top balloon 14 and the outer surface of the top 111 of the head of the device is a top balloon inner chamber 140, the top balloon inner chamber 140 may have no air or volume before being inflated, but the top balloon inner chamber 140 may be enlarged after being inflated with fluid, the side of the top balloon 14 connected to the outer surface of the head top 111 is a top balloon bottom 141, and the other side is a top balloon top 142; the top bladder bottom 141 is connected to the outer surface of the head top 111, is the connection portion of the top bladder, and the remaining portion including the top bladder top 142 is the top bladder inflatable portion 143; the tip balloon lumen 140 is specifically formed by the inner surface of the tip balloon inflatable portion 143 and the portion of the outer surface of the head tip 111 covered by the tip balloon inflatable portion 143; the top balloon top 142 is blind and closed outwards, and the average outer diameter of the part between the most distant point 142p of the top balloon top and the most distant point 111p of the device head top is smaller than the maximum outer diameter of the device head top 111; the top balloon inner cavity 140 is connected with the outside through a first passage 144, the first passage 144 has at least one first passage inner opening 1441 communicated with the top balloon inner cavity 140, and at least one first passage outer opening 1442 communicated with the external space; in use, the device head tip 111 is placed into the urethra 01 and advanced (fig. 1F), to the point of urethral stricture where it is difficult to pass through with obstruction, fluid is filled into the top balloon lumen 140 through a first path by an external or self-contained power unit of the device to inflate it (fig. 1G), the device head tip 111 is rapidly pushed further into place in the prostatic urethra (fig. 1H) after the inflation is released and the dilated urethra has not been restored, the head tip 111 now passes through the urethra 01 that has just been dilated, therefore, shearing damage to the narrow urethra is avoided, the top end capsule body 14 is filled for multiple times or continuously to press the prostate 02, the prostate part of the urethra is further expanded, and the prostate 02 which is pressed and shaped by the top end capsule body 14 after the treatment ending device is withdrawn cannot be quickly restored in a short period, so that the difficulty in urination caused by hyperplasia and hypertrophy of the prostate is relieved; the urethral mucosa has no shearing and contusion injury, the urethral mucosa has complete structure, the device can be pulled out after pressing and dilating without draining urine in bladder, the strip-shaped device is not provided with a urine inlet and a wide urine drainage channel, the outer diameter of the device can be obviously reduced relative to the catheter, if the urethra of a patient needs to be in 16Fr size, the device can be in 14Fr size or smaller, and the injury to the urethra is slight; the top balloon 14 can be filled with cryogenic fluid during prostate compression and dilation to help eliminate inflammatory edema; in some cases, the high-temperature fluid can improve local microcirculation and stimulate the apoptosis of prostate cells; when the prostate is enlarged seriously, the liquid can be preferably used for filling the expansion top end capsule body 14, and the prostate 02 can be expanded by pressing with greater force; non-compliant materials such as block polyether amide and the like can be selected to manufacture the apical capsule 14 to accurately press and expand the prostate 02; semi-compliant and compliant materials such as polyamide and silicone rubber can be selected according to the prostate imaging parameters of the patient; at least the head part 11 of the device is provided with a tracing line which is convenient for the detection of ultrasound and/or radiation, and the device can be accurately operated under the guidance of an ultrasound and/or radiation image instrument during treatment.
As shown in fig. 1B-1D, the power for inflating the top-end capsule 14 in this embodiment is derived from a top-end capsule power unit 15 in the form of a hollow capsule, the top-end capsule power unit 15 is located on the outer surface of the middle portion 13 near the tail portion 12, two natural openings of the top-end capsule power unit 15 are hermetically connected by the outer surface of the device, the top-end capsule power unit inner cavity 150 is communicated with the first passage outer opening 1442, that is, the first passage outer opening 1442 is opened on the outer surface of the device covered by the top-end capsule power unit 15; the air in the top air bag body can be pressurized by the external part of the top air bag body power unit 15 to be filled into the top air bag body inner cavity 140, the top air bag body 14 is expanded, the air filled into the top air bag body inner cavity 140 after the pressure is relieved flows back into the top air bag body power unit inner cavity 150 (figure 1D) due to the elastic restoring force of the wall of the top air bag body power unit 15, and the top air bag body 14 is recovered; the top bladder power unit cavity 150 can also be pre-filled with liquid substances such as sterile water, glycerol and the like; as shown in fig. 1E, the head of the conventional transurethral columnar water sac prostate expansion device cannot pass through the narrow part of the urethra smoothly, and the head is advanced forcefully to cut the endourethral membrane at the narrow part of the urethra; in the present invention shown in fig. 1F, the head tip 111 with the larger outer diameter cannot pass through when traveling in the urethra and meets the stenosis, while the tip balloon 14 with the smaller outer diameter, especially the tip balloon tip 142, can enter the lumen of the urethra in the stenotic portion without or with a minimum degree of damage to the urethra; as shown in fig. 1G, when the top balloon power unit 15 (not shown) is pressed, the gas in the top balloon enters the top balloon lumen 140 to inflate the top balloon 14, so as to dilate the urethra at the narrow part, and then the dilation is released to push the device forward; when reaching the prostatic urethra, as shown in fig. 1H, the power unit 15 (not shown) of the top balloon is pressed to inflate the top balloon 14, so that the prostatic urethra is pressed and expanded, the expanded prostate releases the pressure on the urethra, and the urination is smooth; marks M (figure 1B) for indicating the length are arranged on the surfaces of the tail part 12 and/or the middle part 13 of the device, the length of the device entering the urethra is displayed, the position relation between the top capsule body and the prostate part is accurately judged, and the bladder neck is prevented from being expanded by mistake; the top balloon power unit can also be an external air pump device, and various programs such as progressive pressurization, wave filling and the like are preset to better and individually press and expand the prostate.
Example 2:
as shown in fig. 2, different from embodiment 1, the top balloon power unit 15 for filling the top balloon inner cavity 140 (not shown) is provided with at least one outward opening 151 capable of being covered by a finger, the gas in the top balloon power unit inner cavity 150 (not shown) is communicated with the outside through the outward opening 151, when in use, the top balloon power unit 15 is pressed while the outward opening 151 is covered by the finger, and since the outward opening 151 is closed by the finger, the gas in the top balloon power unit inner cavity 150 (not shown) is pressed to the top balloon inner cavity 140 (not shown) through the first passage 144 and inflates the top balloon inner cavity 140, thereby dilating the narrow urethra; when the extrusion is stopped, the top-end capsule power unit 15 recovers, the gas entering the top-end capsule inner cavity 140 (not shown) is sucked back to the top-end capsule power unit inner cavity 150 (not shown), the gas entering the top-end capsule inner cavity 140 (not shown) can be pushed back to the top-end capsule power unit inner cavity 150 (not shown) due to the elastic restoring force of the top-end capsule 14 (not shown), the finger sealing of the external opening 151 can be released, the gas in the top-end capsule power unit inner cavity 150 (not shown) is communicated with the outside, and finally the top-end capsule 14 (not shown) is recovered from the expansion state.
Example 3:
as shown in fig. 3A-3C, unlike embodiment 1, an expandable compression balloon 16 is disposed on the outside of the head 11 of the device, the expanded length of the compression balloon covers the prostate, the compression balloon lumen 160 is inflated after being filled with a fluid, the compression balloon lumen 160 is connected to the outside through a second passage 161 of the device, the second passage 161 is provided with at least one second passage inner opening 1611 communicating with the compression balloon lumen 160, and at least one second passage-out opening 1612 at the intermediate portion 13 or the rear portion 12 of the apparatus to communicate with the outside space, gas and/or liquid with certain pressure can be filled into the pressing capsule inner cavity 160 from the outside of the body through the second passage 161 by using a syringe, a pump, an elastic balloon and other tools, the pressing capsule 16 is inflated and expanded, then air and/or liquid entering the pressing capsule inner cavity 160 is pumped out from the outside of the body, the expansion of the pressing capsule 16 is relieved, and the prostate part of the urethra is expanded by multiple times or continuous pressing; in the embodiment, the top end capsule 14 is difficult to pass through the urethra and prostate part, fluid is filled into the inner cavity 140 of the top end capsule through a first passage by an external power unit or a power unit carried by the device to be expanded, the fluid in the inner cavity 140 of the top end capsule is released immediately, the device is smoothly pushed towards the bladder direction when the expanded urethra is not restored until the pressing capsule 16 is positioned at a proper position of the urethra prostate part, and the top end capsule 14 is preferably made of a compliant material such as silicon rubber, a thermoplastic elastomer and the like; in this embodiment, the prostate compression balloon 16 is cylindrical, the second passage outer opening 1612 is located on the second passage branch 162 of the device tail 12, the upper end of the second passage branch 162 is connected with a hollow balloon-shaped compression balloon power unit 163, the second passage outer opening 1612 is opened in the compression balloon power unit inner cavity 1630, the compression balloon power unit inner cavity 1630 is only communicated with the second passage 161, the fluid in the compression balloon power unit inner cavity can flow to the compression balloon inner cavity 160 due to the external pressure of the compression balloon power unit 163, so that the compression balloon 16 is expanded, the fluid filled in the compression balloon inner cavity 160 after the pressure is released flows back to the compression balloon power unit inner cavity 1630 due to the elastic restoring force of the compression balloon power unit 163, and the compression balloon 16 is recovered from the expanded state to the original state; the inner cavity 1630 of the power unit of the pressing bag body can be pre-filled with liquid substances such as sterile water, glycerol and the like; in fig. 3A, the compression balloon 16 is in an unexpanded state and in fig. 3B, the compression balloon 16 is in an expanded state.
Example 4:
as shown in fig. 4A to 4C, unlike embodiment 3, two expandable upper and lower circumferential compression balloons 16a and 16b are provided on the head portion 11 of the device, the upper and lower circumferential compression balloon lumens 160a and 160b are connected to the outside through upper and lower second passages 161a and 161b, respectively, the upper second passage 161a is provided with at least one upper second passage inner opening 1611a communicating with the upper circumferential compression balloon lumen 160a, and at least one upper second passage outer opening 1612a located at the tail portion 12 of the device communicating with the outside space; the lower second passage 161b is provided with at least one lower second passage inner opening 1611b communicated with the lower circumferential compression balloon inner cavity 160b and at least one lower second passage outer opening 1612b positioned at the tail part 12 of the device to be communicated with the external space; in this embodiment, the upper second passage external opening 1612a is located on the upper second passage branch 162a of the device tail 12, the lower second passage external opening 1612b is located on the lower second passage branch 162b of the device tail 12, the upper second passage external opening 1612a and the lower second passage external opening 1612b are respectively located in the upper pressing balloon power unit lumen 1630a and the lower pressing balloon power unit lumen 1630b, and the upper second passage 161a and the lower second passage 161b are respectively in fluid communication with the upper pressing balloon power unit lumen 1630a and the lower pressing balloon power unit lumen 1630b, so that the upper pressing balloon power unit 163a and the lower pressing balloon power unit 163b are pressed to inflate the upper circumferential pressing balloon 16a and the lower circumferential pressing balloon 16 b; in order to better flush the prostate opening and drain the liquid flowing out of the prostate, at least one periventricular opening 17 for flushing and/or drainage is arranged between the upper periventricular compression balloon body 16a and the lower periventricular compression balloon body 16b, the periventricular opening 17 is connected with the outside through a third passage 171, and the third passage 171 is provided with at least one third passage outer opening 1711 positioned in the middle part 13 or the tail part 12 of the device and communicated with the external space; in fig. 4A, the upper and lower circumferential compression bladders 16a, 16B are in an unexpanded state, and in fig. 4B, the upper and lower circumferential compression bladders 16a, 16B are in an expanded state; during treatment, the upper circumferential compression bag body 16a and the lower circumferential compression bag body 16b can be alternately filled according to the specific conditions of a patient, and the upper circumferential compression bag body and the lower circumferential compression bag body can also be simultaneously filled to expand the prostate for positive pressure flushing and negative pressure drainage.
Example 5:
different from embodiment 4, two expandable left longitudinal pressing balloons 16c and right longitudinal pressing balloons 16d distributed along the circumference of the device are arranged on the head 11 of the device, the left longitudinal pressing balloon inner cavity 160c and the right longitudinal pressing balloon inner cavity 160d are respectively connected with the outside through a left second passage 161c and a right second passage 161d, the left second passage 161c is provided with at least one left second passage inner opening 1611c communicated with the left longitudinal pressing balloon inner cavity 160c, and at least one left second passage outer opening 1612c positioned at the tail 12 of the device communicated with the external space; the right second passage 161d is provided with at least one right second passage inner opening 1611d communicated with the right longitudinal pressing balloon inner cavity 160d and at least one right second passage outer opening 1612d positioned at the tail part 12 of the device to be communicated with the external space; in this embodiment, the left second passage outer opening 1612c is located on the left second passage branch 162c of the device tail 12, the right second passage outer opening 1612d is located on the right second passage branch 162d of the device tail 12, the left second passage outer opening 1612c and the right second passage outer opening 1612d are respectively located in the left compression balloon power unit lumen 1630c and the right compression balloon power unit lumen 1630d, and the left second passage 161c and the right second passage 161d are respectively in fluid communication with the left compression balloon power unit lumen 1630c and the right compression balloon power unit lumen 1630d, so that the left compression balloon power unit 163c and the right compression balloon power unit 163d can respectively inflate the left longitudinal compression balloon 16c and the right longitudinal compression balloon 16 d; at least one longitudinal inter-sac opening 17a for flushing and/or draining is arranged between the left longitudinal pressing sac body 16c and the right longitudinal pressing sac body 16d, the longitudinal inter-sac opening 17a is connected with the outside through a third passage 171a, and the third passage 171a is provided with at least one third passage outer opening 1711a positioned in the middle part 13 or the tail part 12 of the device and communicated with an external space; in fig. 5A the left and right longitudinal compression balloons 16c, 16d are in an unexpanded state and in fig. 5B the left and right longitudinal compression balloons 16c, 16d are in an expanded state; this design allows for rotation of the device during treatment, changing the compression dilation position to fully expose the prostate opening for better drainage, without the left and right longitudinal compression balloons 16c, 16d disengaging from the prostatic urethra throughout the procedure.
Example 6:
as shown in fig. 6, unlike the previous embodiment, since the tip balloon 14 is of a flexible design and must have the ability to enter the stricture of the prostatic urethra first, the device of this embodiment has a tip portion 1111 extending to the tip balloon lumen 140, which increases the external strength of the tip balloon 14 without increasing or without significantly increasing the external diameter of the tip balloon 14, thereby facilitating the smooth entry of the tip balloon 14 into the prostatic urethra.
Claims (10)
1. The utility model provides a device of gland is pressed to urethra in, is rectangular form, gets into head (11) of urethra prostate portion when using, keeps somewhere afterbody (12) and the intermediate part (13) that connect head (11) and afterbody (12) outside the body, its characterized in that: the top end (111) of the head of the device is connected with an inflatable cap-shaped top end capsule body (14), the space between the inner surface of the top end capsule body (14) and the outer surface of the top end (111) of the head of the device is a top end capsule body inner cavity (140), one side of the top end capsule body (14) connected with the outer surface of the top end (111) of the head is a top end capsule body bottom (141), and the other side of the top end capsule body top (142) is a top end capsule body top; the top bladder bottom (141) is connected with the outer surface of the head top (111) and is a connecting part of the top bladder, and the rest part of the top bladder top (142) is a top bladder inflatable part (143); the top balloon inner cavity (140) is formed by the inner surface of the top balloon inflatable part (143) and the part of the outer surface of the head top (111) covered by the top balloon inflatable part (143); the top balloon top (142) is blind-end-to-outer closed, and the average outer diameter of the part between the most distant point (142p) of the top balloon top and the most distant point (111p) of the head top of the device is smaller than the maximum outer diameter of the head top (111) of the device; the top balloon inner chamber (140) is connected with the outside through a first passage (144), the first passage (144) has at least one first passage inner opening (1441) communicated with the top balloon inner chamber (140) and at least one first passage outer opening (1442) communicated with the external space.
2. An intra-urethral compression device for the prostate as claimed in claim 1 wherein: the surface of the tail part (12) or the middle part (13) close to the tail part (12) of the device is provided with a top end capsule power unit (15) which is in a hollow capsule shape, the top end capsule power unit (15) is extruded to fill fluid in the top end capsule power unit into a top end capsule inner cavity (140) so as to expand the top end capsule (14), and the top end capsule power unit inner cavity (150) is communicated with the first passage outer opening (1442).
3. An intra-urethral compression device for the prostate as claimed in claim 2, wherein: the top end capsule power unit (15) used for filling the top end capsule inner cavity (140) is provided with at least one external opening (151) capable of being covered by fingers, and the top end capsule power unit inner cavity (150) is communicated with the outside through the external opening (151).
4. An intra-urethral compression device for the prostate as claimed in claim 1 wherein: an expandable pressing capsule body (16) is arranged on the outer side of the head part (11) of the device, a pressing capsule body inner cavity (160) is connected with the outside through a second passage (161), the second passage (161) is provided with at least one second passage inner opening (1611) communicated with the pressing capsule body inner cavity (160), and at least one second passage outer opening (1612) positioned in the middle part (13) or the tail part (12) of the device is communicated with the external space.
5. An intra-urethral compression device for the prostate as claimed in claim 1 wherein: at least two expandable circumferential compression capsules (16) which are arranged along the axial direction of the device are arranged on the head part (11) of the device, inner cavities (160) of the circumferential compression capsules are respectively connected with the outside through respective second passages (161), the second passages (161) are provided with at least one second passage inner opening (1611) which is communicated with the inner cavities (160) of the circumferential compression capsules and at least one second passage outer opening (1612) which is positioned at the middle part (13) or the tail part (12) of the device and is communicated with the external space.
6. An intra-urethral compression device for the prostate as claimed in claim 5, wherein: at least one circumferential bag opening (17) for flushing and/or drainage is arranged between circumferential pressing bag bodies (16) of the head part (11) of the device, the circumferential bag opening (17) is connected with the outside through a third passage (171), and the third passage (171) is provided with at least one third passage outer opening (1711) positioned in the middle part (13) or the tail part (12) of the device and communicated with the external space.
7. An intra-urethral compression device for the prostate as claimed in claim 1 wherein: at least two inflatable longitudinal pressing capsules (16) distributed along the periphery of the device are arranged on the head part (11) of the device, inner cavities (160) of the longitudinal pressing capsules are respectively connected with the outside through respective second passages (161), the second passages (161) are provided with at least one second passage inner opening (1611) communicated with the inner cavities (160) of the longitudinal pressing capsules and at least one second passage outer opening (1612) positioned in the middle part (13) or the tail part (12) of the device communicated with the external space.
8. An intra-urethral compression device for the prostate as claimed in claim 7, wherein: at least one longitudinal inter-sac opening (17) for flushing and/or drainage is arranged between the longitudinal pressing sac bodies (16) of the head part (11) of the device, the longitudinal inter-sac opening (17) is connected with the outside through a third passage (171), and the third passage (171) is provided with at least one third passage outer opening (1711) which is positioned in the middle part (13) or the tail part (12) of the device and is communicated with the external space.
9. An intra-urethral compression device for the prostate as claimed in claim 1 wherein: a portion (1111) of the device head tip extends into the tip capsule lumen (140).
10. An intra-urethral compression device for the prostate according to claims 1-9 wherein: the surface of the tail part (12) and/or the middle part (13) of the device is provided with a mark (M) for indicating the length, which is used for judging the length of the device entering the urethra.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566438.6A CN113289219A (en) | 2021-05-24 | 2021-05-24 | Device for pressing prostate in urethra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566438.6A CN113289219A (en) | 2021-05-24 | 2021-05-24 | Device for pressing prostate in urethra |
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| CN113289219A true CN113289219A (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110566438.6A Pending CN113289219A (en) | 2021-05-24 | 2021-05-24 | Device for pressing prostate in urethra |
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| CN107693921A (en) * | 2017-05-17 | 2018-02-16 | 威海吉威重症医疗制品有限公司 | A kind of stricture dilation type catheter |
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2021
- 2021-05-24 CN CN202110566438.6A patent/CN113289219A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992010142A1 (en) * | 1990-12-10 | 1992-06-25 | Howmedica Inc. | A device and method for interstitial laser energy delivery |
| US20040193143A1 (en) * | 2002-03-20 | 2004-09-30 | Manfred Sauer | Catheter for drainage of the bladder |
| CN101239215A (en) * | 2008-01-06 | 2008-08-13 | 姜汉胜 | Multi-cavity high-pressure water-bag posterior urethral expanding catheter for treating hyperplasia of prostate |
| CN201257219Y (en) * | 2008-07-22 | 2009-06-17 | 姜大磊 | Novel multi-cavity high-pressure water-sac posterior urethral expand-crack duct |
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