Clinical prostate expansion device for urinary surgery

Abstract

The utility model belongs to the technical field of prostate expansion, and particularly relates to a urinary surgery clinical prostate expansion device which comprises an outer catheter, a guide rod arranged in the outer catheter, a groove formed in one end of the outer catheter and an expansion assembly movably connected to the guide rod. The dilation assembly comprises a sleeve connected to the outer wall of the guide rod in a sliding mode, an air bag arranged on the periphery of the sleeve in a sleeving mode and used for dilating the prostate, a pull rod arranged at the position, close to the interior of the outer catheter, of the sleeve and an assembly arranged at the end, away from the air bag, of the outer catheter and used for limiting the pull rod. Through the arrangement of the expansion assembly, not only can the prostate be expanded, but also the air bag can be retracted into the outer catheter when the expansion equipment is placed and drawn out, so that the urethra is prevented from being damaged in the process of entering and exiting the urethra, and meanwhile, the air bag can be accurately reset when the air bag is used.

Description

Technical Field

[0001] The utility model belongs to the technical field of prostate expansion, and in particular relates to a clinical prostate expansion device for urology surgery. Background Art

[0002] Prostate dilation surgery is a surgery used to treat symptoms such as waiting before urination, thin and weak urine stream, and uremia. During the operation of prostate dilation surgery, it is usually necessary to use an expansion device to dilate the prostate to facilitate the entry of the surgical pipeline. The existing expansion device is composed of an air storage bag, a ventilation rubber tube, and an inflation needle tube. In the prior art, the fixed airbag of the expansion device has a poor fixing effect, and the fixed airbag needs to be withdrawn when not in use. Since the fixed airbag protrudes outside the catheter, it is easy to cause urethral damage during the process of entering and exiting the urethra. Utility Model Content

[0003] In view of the above problems, the purpose of the present utility model is to provide a urology clinical prostate dilation device to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the utility model adopts the following technical solution: a urology clinical prostate dilation device, comprising an outer catheter, a guide rod arranged inside the outer catheter, a groove opened at one end of the outer catheter, and an expansion component movably connected to the guide rod, the expansion component comprising a sleeve slidably connected to the outer wall of the guide rod, an airbag sleeved on the outer periphery of the sleeve and used to dilate the prostate, a pull rod arranged in the sleeve near the inside of the outer catheter, and a component arranged at the end of the outer catheter away from the airbag and used to limit the pull rod.

[0005] The beneficial effects of the utility model are as follows: by setting up the expansion component, not only can the prostate be expanded, but also the airbag can be retracted into the outer catheter when placing and withdrawing the expansion device to avoid damage to the urethra during the process of entering and exiting the urethra. At the same time, when using the airbag, the airbag can also be accurately reset.

[0006] To be able to retract the balloon into the outer catheter when not in use:

[0007] As a further improvement of the above technical solution: the component for limiting the pull rod includes a fixed ring arranged at the end of the outer catheter away from the airbag, a movable ring slidably connected to the outer wall of the outer catheter, a connecting rod slidably connected to both sides of the fixed ring and used to connect the pull rod and the movable ring, adjustment holes symmetrically opened on the connecting rod, a limit rod slidably connected to both sides of the fixed ring, and a spring sleeved on the outer wall of the limit rod and used to connect the limit rod and the fixed ring.

[0008] The beneficial effect of this improvement is as follows: when the airbag is not in use, the limit rod is pulled outward and the spring is stretched to release the limit on the connecting rod, and the pull rod drives the sleeve and the airbag to slide along the guide rod into the outer guide tube, driving the connecting rod to slide toward the end away from the airbag, and after the adjustment hole at the other end of the connecting rod slides to be aligned with the limit rod, the limit rod is released, and under the elastic action of the spring, the limit rod limits the connecting rod, thereby limiting the sleeve and the airbag.

[0009] To facilitate inflation of the balloon to dilate the prostate:

[0010] As a further improvement of the above technical solution: an end of the sleeve close to the inner part of the outer catheter is connected to an inflation tube, and the outer wall of the sleeve is provided with a plurality of inflation holes for inflating the airbag.

[0011] The beneficial effect of this improvement is that the inflation tube is connected to an external inflation device to inflate the sleeve, and the gas enters the airbag through the inflation hole, causing the airbag to inflate and swell, thereby expanding the prostate.

[0012] To facilitate insertion of the external catheter through the urethra into the prostate:

[0013] As a further improvement of the above technical solution: the end of the outer catheter close to the airbag is configured to be in a pointed cone shape.

[0014] The beneficial effect of this improvement is that the outer catheter is configured to be in a pointed cone shape, which makes it easier to insert the outer catheter into the prostate along the urethra.

[0015] To facilitate the retraction and deployment of the airbag:

[0016] As a further improvement of the above technical solution: the length of the airbag is the same as the length of the groove. When the airbag is retracted, it slides into the outer catheter along with the sleeve under the external force of the pull rod.

[0017] The beneficial effect of this improvement is that when the airbag is used, the sleeve is pushed into the groove and inflated to expand the prostate; when not in use, the airbag is retracted and slides into the outer catheter along with the sleeve under the external force of the pull rod.

[0018] To facilitate pulling and pushing the lever:

[0019] As a further improvement of the above technical solution: a square handle is provided at one end of the pull rod close to the fixing ring.

[0020] The beneficial effect of this improvement is that by providing a square handle, it is easy to pull and push the pull rod to achieve the retraction and deployment of the airbag.

[0021] In order to facilitate accurate retraction and release of the balloon to prevent the balloon from damaging the inner wall of the urethra:

[0022] As a further improvement of the above technical solution: the distance between the fixed ring and the movable ring is the same as the length of the groove.

[0023] The beneficial effect of this improvement is that when the movable ring is slid along the outer catheter to the fixed ring, the airbag is completely retracted into the outer catheter, which makes it easy to accurately retract and release the airbag to prevent the airbag from damaging the inner wall of the urethra. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a side view stereoscopic structural schematic diagram of the utility model;

[0025] Figure 2 This is a front view structural schematic diagram of the utility model;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0027] Figure 4 It is a schematic diagram of the enlarged structure of point A in the utility model.

[0028] In the figure: 1. outer catheter; 2. guide rod; 3. groove; 4. sleeve; 5. airbag; 6. pull rod; 7. fixed ring; 8. movable ring; 9. connecting rod; 10. adjustment hole; 11. limit rod; 12. spring; 13. inflation tube; 14. inflation hole; 15. square handle. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0030] like Figure 1-4As shown, a urology clinical prostate dilation device comprises an outer catheter 1, a guide rod 2 arranged inside the outer catheter 1, a groove 3 opened at one end of the outer catheter 1 and an expansion component movably connected to the guide rod 2, wherein the expansion component comprises a sleeve 4 slidably connected to the outer wall of the guide rod 2, an air bag 5 sleeved on the outer periphery of the sleeve 4 and used for dilating the prostate, a pull rod 6 arranged on the sleeve 4 close to the inside of the outer catheter 1, and a component arranged at one end of the outer catheter 1 away from the air bag 5 and used for limiting the pull rod 6. By arranging the expansion component, not only the prostate can be dilated, but also the air bag 5 can be retracted into the outer catheter 1 when placing and withdrawing the expansion device to avoid damage to the urethra during the process of entering and exiting the urethra, and at the same time, the air bag 5 can be used to limit the pull rod 6. When the airbag 5 is in use, the airbag 5 can also be accurately reset. The component for limiting the pull rod 6 includes a fixed ring 7 arranged at the end of the outer catheter 1 away from the airbag 5, a movable ring 8 slidably connected to the outer wall of the outer catheter 1, a connecting rod 9 slidably connected to both sides of the fixed ring 7 and used to connect the pull rod 6 and the movable ring 8, an adjusting hole 10 symmetrically arranged on the connecting rod 9, a limiting rod 11 slidably connected to both sides of the fixed ring 7, and a spring 12 sleeved on the outer wall of the limiting rod 11 and used to connect the limiting rod 11 and the fixed ring 7. When the airbag 5 is not in use, the limiting rod 11 is pulled outward and the spring 12 is stretched to release the limiting rod 11 on the connecting rod 9, and the sleeve 4 and the airbag 5 are driven by the pull rod 6 to slide along the guide rod 2 into the outer catheter 1. The connecting rod 9 is driven to slide toward the end away from the airbag 5. After the adjustment hole 10 at the other end of the connecting rod 9 slides to be aligned with the limiting rod 11, the limiting rod 11 is released. Under the elastic action of the spring 12, the limiting rod 11 limits the connecting rod 9, thereby limiting the sleeve 4 and the airbag 5. The end of the sleeve 4 close to the inner part of the outer catheter 1 is connected with an inflation tube 13. The outer wall of the sleeve 4 is provided with a plurality of inflation holes 14 for inflating the airbag 5. The inflation tube 13 is connected to an external inflation device to inflate the sleeve 4. The gas enters the airbag 5 through the inflation hole 14, so that the airbag 5 is inflated and bulged, thereby expanding the prostate. The end of the outer catheter 1 close to the airbag 5 is set to a pointed cone shape. The outer catheter 1 is set to a pointed cone shape. It is convenient to insert the outer catheter 1 into the prostate along the urethra. The length of the airbag 5 is the same as the length of the groove 3. When the airbag 5 is retracted, under the external force of the pull rod 6, the sleeve 4 slides into the outer catheter 1. When the airbag 5 is used, the sleeve 4 is pushed into the groove 3 and inflated to expand the prostate. When not in use, the airbag 5 is retracted. Under the external force of the pull rod 6, the sleeve 4 slides into the outer catheter 1. A square handle 15 is provided at one end of the pull rod 6 close to the fixed ring 7. By providing the square handle 15, it is convenient to pull and push the pull rod 6 to realize the retraction and release of the airbag 5. The distance between the fixed ring 7 and the movable ring 8 is the same as the length of the groove 3. When the movable ring 8 slides along the outer catheter 1 to the fixed ring 7,The airbag 5 is completely retracted into the outer catheter 1, which can facilitate accurate retraction and release of the airbag 5 to prevent the airbag 5 from causing damage to the inner wall of the urethra.

[0031] The working principle and use process of the utility model are as follows: when treating the prostate, first pull the limit rod 11 outward and stretch the spring 12 to release the limit rod 11 on the connecting rod 9, drive the sleeve 4 and the airbag 5 to slide along the guide rod 2 into the outer catheter 1 through the pull rod 6, drive the connecting rod 9 to slide toward the end away from the airbag 5, and after the adjustment hole 10 at the other end of the connecting rod 9 slides to align with the limit rod 11, release the limit rod 11, and under the elastic action of the spring 12, the limit rod 11 limits the connecting rod 9, thereby limiting the sleeve 4 and the airbag 5, and inserting the outer catheter 1 into the prostate along the urethra, and then through the above steps, release the limit rod 11 on the connecting rod The rod 9 is limited, and the pull rod 6 is pushed toward the side close to the outer catheter 1, driving the sleeve 4 and the airbag 5 to slide along the guide rod 2 into the groove 3. When the movable ring 8 slides to the point where the connecting rod 9 contacts the outer end of the outer catheter 1, the other adjustment hole 10 on the connecting rod 9 is aligned with the limit rod 11. The limit rod 11 is released, and under the elastic action of the spring 12, the limit rod 11 limits the connecting rod 9, thereby limiting the sleeve 4 and the airbag 5, so that the airbag 5 can be positioned in the prostate. The inflation tube 13 is connected to the external inflation device, and the sleeve 4 is inflated. The gas enters the airbag 5 through the inflation hole 14, causing the airbag 5 to inflate and swell, thereby expanding the prostate.

[0032] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A urology clinical prostate expansion device, comprising an outer catheter (1), a guide rod (2) arranged inside the outer catheter (1), a groove (3) provided at one end of the outer catheter (1), and an expansion component movably connected to the guide rod (2), characterized in that: The expansion component comprises a sleeve (4) slidably connected to the outer wall of the guide rod (2), an air bag (5) sleeved on the outer periphery of the sleeve (4) and used to expand the prostate, a pull rod (6) arranged inside the sleeve (4) close to the outer catheter (1), and a component arranged at the end of the outer catheter (1) away from the air bag (5) and used to limit the pull rod (6).

2. A urology clinical prostate dilation device according to claim 1, characterized in that: The assembly for limiting the pull rod (6) comprises a fixed ring (7) arranged at one end of the outer catheter (1) away from the airbag (5), a movable ring (8) slidably connected to the outer wall of the outer catheter (1), a connecting rod (9) slidably connected to both sides of the fixed ring (7) and used to connect the pull rod (6) and the movable ring (8), an adjustment hole (10) symmetrically arranged on the connecting rod (9), a limiting rod (11) slidably connected to both sides of the fixed ring (7), and a spring (12) sleeved on the outer wall of the limiting rod (11) and used to connect the limiting rod (11) and the fixed ring (7).

3. The urology clinical prostate dilation device according to claim 1, characterized in that: An end of the sleeve (4) close to the interior of the outer catheter (1) is connected to an inflation tube (13), and the outer wall of the sleeve (4) is provided with a plurality of inflation holes (14) for inflating the airbag (5).

4. A urology clinical prostate dilation device according to claim 1, characterized in that: The end of the outer catheter (1) close to the air bag (5) is configured to be in a pointed cone shape.

5. The urology clinical prostate dilation device according to claim 1, characterized in that: The length of the airbag (5) is the same as that of the groove (3). When the airbag (5) is retracted, it slides into the outer catheter (1) along with the sleeve (4) under the external force of the pull rod (6).

6. The urology clinical prostate dilation device according to claim 1, characterized in that: A square handle (15) is provided at one end of the pull rod (6) close to the fixing ring (7).

7. A urology clinical prostate dilation device according to claim 2, characterized in that: The distance between the fixed ring (7) and the movable ring (8) is the same as the length of the groove (3).

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