A urinary bladder blood clot flusher with urethral dilatation

Abstract

The utility model relates to the field of medical auxiliary instrument. A kind of bladder blood clot flusher giving consideration to urethral dilatation, including a sheath pipe, the main channel of inside diameter gradually decreasing in succession, auxiliary channel and be used for passing through endoscope channel are set in sheath pipe;Main channel is used to butt negative pressure suction equipment or obturator, and main channel is connected with the main extension pipe that extends to the outside of sheath pipe;Auxiliary channel is used to pass through blood clot breaking instrument or for the flush equipment of butt joint introduction flushing liquid, and auxiliary channel is connected with the auxiliary extension pipe that extends to the outside of sheath pipe;Endoscope channel is connected with the endoscope channel extension pipe that extends to the outside of sheath pipe;It further includes balloon dilation piece, balloon dilation piece is sleeved in sheath pipe outside or slidingly arranged in main channel, and balloon is installed on the outer wall of balloon dilation piece.The utility model is by sheath pipe to adopt three-cavity structure, the butt joint of different instruments is facilitated to realize, different use requirements are satisfied, and it is flexible and multipurpose.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary devices, specifically a bladder blood clot flushing device. Background Technology

[0002] Hematuria is a common emergency in urology. It is frequently seen in spontaneous bleeding from urinary tract tumors (bladder cancer, renal pelvis cancer), benign prostatic hyperplasia, etc.; secondary bleeding after cystoscopy, percutaneous nephrolithotomy, renal biopsy, and transurethral resection of the prostate; and bleeding caused by renal contusion or laceration. When the bleeding is large and cannot be drained promptly, fresh blood will form a blood clot in the bladder cavity. A large clot can obstruct the bladder neck or urethra, causing bladder distension and spasm, which further aggravates the bleeding, ultimately leading to bladder spasm symptoms such as urinary frequency, urgency, and dysuria, as well as lower abdominal distension, difficulty urinating, or urinary retention. If measures are not taken promptly to remove the accumulated blood and clear the urethra, the continuous accumulation of bleeding can lead to hemorrhagic shock and even endanger life, potentially requiring emergency surgery to remove the blood clot, increasing surgical risks and financial burden. Therefore, in the event of bladder tamponade due to blood clots, emergency measures should be taken to remove the clots, relieve the obstruction, and alleviate the patient's bladder spasm symptoms. If the situation permits, the primary lesion should be actively treated.

[0003] In clinical practice, patients with benign prostatic hyperplasia undergoing bladder resection often present with urethral stricture or a narrower urethra compared to the surgical instruments. Intraoperative pre-dilation is necessary to facilitate the smooth insertion of these instruments into the bladder. This procedure helps avoid urethral injury caused by forced instrument insertion during surgery and reduces the incidence of postoperative urethral stricture. In summary, when patients present with symptoms of urethral stricture, it is essential to establish a well-defined bladder passage and perform targeted dilation to ensure successful placement of the bladder clot irrigator.

[0004] Existing urethral dilation methods are often set up independently of bladder clot flushing devices. For example, a dilation balloon is selected for urethral dilation. However, existing dilation balloons require cystoscopy or X-ray imaging for positioning, which is expensive.

[0005] In summary, there is currently a lack of a bladder clot flushing device structure that also takes into account urethral dilation. Utility Model Content

[0006] In view of the problems existing in the prior art, this utility model provides a bladder blood clot flushing device that also takes into account urethral dilation, so as to solve at least one of the above technical problems.

[0007] To achieve the above objectives, this utility model provides a bladder blood clot flushing device that also accommodates urethral dilation, comprising a sheath, characterized in that the sheath has a main channel, an auxiliary channel, and an endoscope channel with successively decreasing inner diameters.

[0008] The main channel is used to connect to a negative pressure suction device or a pore closer, and the main channel is connected to a main extension tube extending outward from the sheath.

[0009] The auxiliary channel is used to pass through a blood clot breaking instrument or to connect to a flushing device for introducing flushing fluid, and the auxiliary channel is connected to an auxiliary extension tube extending outward from the sheath.

[0010] The endoscope channel is connected to an endoscope channel extension tube extending outward from the sheath.

[0011] It also includes a balloon dilator, which is sleeved outside the sheath or slidably disposed within the main channel, and a balloon is installed on the outer wall of the balloon dilator.

[0012] This utility model adopts a three-cavity structure in the sheath, which facilitates the docking of different instruments, meets different usage needs, and is flexible and versatile.

[0013] The balloon dilator facilitates precise positioning during use with the endoscope. After the endoscope locates the stenosis in the prostate, the balloon is inserted into the stenosis area, inflating it to dilate the area. Once dilation is complete, the bladder clot flushing device can then smoothly enter the bladder.

[0014] More preferably, the main channel, the auxiliary channel, and the endoscope channel are arranged clockwise or counterclockwise in the circumferential direction.

[0015] More preferably, the main extension tube is connected to the auxiliary extension tube via a first connecting piece, the outer wall of the auxiliary extension tube is connected to the endoscope channel extension tube via a second connecting piece, and the endoscope channel extension tube is connected to the main extension tube via a third connecting piece.

[0016] A further preferred embodiment is an external expander of a balloon expander fitted over the sheath;

[0017] The head end of the external expansion member is closed, and the head end of the external expansion member is a conical guide head structure with an increasing outer diameter;

[0018] The expansion member is connected to an inflation connector for inflating the balloon.

[0019] This allows for the removal of the external dilator and sheath after the urethral stricture has been dilated, and then the sheath can be reinserted for blood clot flushing.

[0020] More preferably, the balloon dilator is slidably disposed within the main channel as the internal dilator;

[0021] The inner expansion member is connected to an inflation connector for inflating the balloon.

[0022] More preferably, the pore-closing device is detachably connected to the main extension tube.

[0023] It facilitates the locking of the hole closer.

[0024] More preferably, the inner wall of the main extension tube is provided with a limiting protrusion for guiding the axial insertion of the end-hole closer, and the end-hole closer is provided with a limiting groove for axially sliding connection with the limiting protrusion.

[0025] The pore closer and the main extension tube are axially limited by a locking mechanism.

[0026] The circumferential limit of the pore closer is achieved by the limiting groove, and the axial limit of the pore closer is achieved by the locking mechanism.

[0027] More preferably, the locking mechanism includes an annular groove disposed on the outer wall of the main extension tube and a snap-fit ​​member fixed on the closure device, the snap-fit ​​member being provided with a snap-fit ​​portion that snaps into the annular groove.

[0028] More preferably, the sheath has a slit at its head end, and the head end of the closure device blocks the head end opening of the main channel and is flush with the outer contour of the slit.

[0029] The obturator can fill in the sharp edges or openings at the front end of the sheath, creating a smooth, closed state.

[0030] More preferably, when the main channel is located at the upper end of the sheath, and the auxiliary channel and the endoscope channel are located at the lower end of the sheath;

[0031] The incision bends upwards in an arc from front to back;

[0032] The sheath has an oblique guide that extends upwards from front to back to the lower end of the cut.

[0033] More preferably, the outer wall of the main extension tube is connected to an outwardly expanding elliptical flared opening, and the center of the elliptical flared opening has an opening that communicates with the inner cavity of the main extension tube.

[0034] The oval-shaped flared opening is used by pressing with the thumb to switch the airflow through the opening, thereby adjusting the negative pressure.

[0035] Compared with the prior art, the beneficial effects of this utility model are:

[0036] 1. This device fulfills three basic functions: visualization, rinsing, and suction, and can efficiently remove blood clots, reducing operation or surgical time.

[0037] 2. Equipped with a channel through which a blood clot crushing instrument passes, facilitating the crushing or agitation of blood clots for easy extraction by a negative pressure suction device.

[0038] 3. This device can be used for pre-dilation before surgery in the treatment of middle lobe prostatic stenosis or membranous urethral stenosis (prostate laser treatment or wrist removal), which facilitates the insertion of surgical instruments. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of a structure of the sheath and the closure device in a specific embodiment of the present invention.

[0040] Figure 2 This is a schematic diagram of the structure of a sheath tube according to a specific embodiment 1 of this utility model;

[0041] Figure 3 This is a schematic diagram of the structure of a sheath tube according to a specific embodiment 1 of this utility model;

[0042] Figure 4 This is a schematic diagram of the structure of the pore-closing device according to a specific embodiment 1 of this utility model;

[0043] Figure 5 This is a partial structural diagram of the limiting groove of the hole closer in the limiting protrusion state when it is axially inserted into the sheath tube according to a specific embodiment of the present invention.

[0044] Figure 6 This is a schematic diagram of the structure of the sheath and the closure device after assembly in a specific embodiment 1 of this utility model;

[0045] Figure 7 This is a schematic diagram of the structure of the auxiliary channel with a blood clot breaking device inserted in a specific embodiment of the present invention;

[0046] Figure 8 This is an exploded view of the sheath and balloon dilator in specific embodiment 2 of this utility model;

[0047] Figure 9 This is a schematic diagram of the balloon in the uninflated state in a specific embodiment 2 of this utility model;

[0048] Figure 10 This is a schematic diagram of the balloon in the expanded state according to a specific embodiment 2 of this utility model.

[0049] Figure 11 This is an exploded view of the sheath and balloon dilator in specific embodiment 3 of this utility model;

[0050] Figure 12 This is a schematic diagram of the balloon in the uninflated state of a specific embodiment 3 of this utility model;

[0051] Figure 13 This is a schematic diagram of the balloon in the expanded state according to a specific embodiment 3 of this utility model.

[0052] In the diagram: 1 is the sheath, 2 is the obturator, 3 is the balloon dilator, 4 is the blood clot fragmentation device, 1.1 is the main extension tube, 1.2 is the endoscope channel extension tube, 1.3 is the auxiliary extension tube, 1.4 is the sheath tip, 1.5 is the elliptical bell mouth, 1.6 is the limiting protrusion, 2.1 is the obturator tip, 2.2 is the snap-fit ​​connector, 2.3 is the limiting groove, 3.1 is the balloon, and 3.2 is the inflation connector. Detailed Implementation

[0053] The present invention will be further described below with reference to the accompanying drawings.

[0054] See Figures 1 to 7 Specific embodiment 1: A bladder blood clot flushing device that also accommodates urethral dilation includes a sheath 1, with a main channel, an auxiliary channel, and an endoscope channel for passing through an endoscope, all having successively decreasing inner diameters within the sheath 1; the main channel is used to connect to a negative pressure suction device or an obturator 2, and is connected to a main extension tube 1.1 extending outward from the sheath 1; the auxiliary channel is used to pass through a blood clot breaking device 4 or to connect to a flushing device for introducing flushing fluid, and is connected to an auxiliary extension tube 1.3 extending outward from the sheath 1; the endoscope channel is connected to an endoscope channel extension tube 1.2 extending outward from the sheath 1; it also includes a balloon dilator, which is sleeved outside the sheath 1 or slidably disposed within the main channel, with a balloon mounted on the outer wall of the balloon dilator.

[0055] This utility model adopts a three-cavity structure in the sheath 1, which facilitates the docking of different instruments, meets different usage needs, and is flexible and versatile.

[0056] The balloon dilator facilitates precise positioning during use with the endoscope. After the endoscope locates the stenosis in the prostate, the balloon is inserted into the stenosis area, inflating it to dilate the area. Once dilation is complete, the bladder clot flushing device can then smoothly enter the bladder.

[0057] The main channel, auxiliary channel, and endoscope channel are arranged clockwise or counterclockwise around the circumference.

[0058] The main extension tube 1.1 is connected to the auxiliary extension tube 1.3 via the first connecting piece. The outer wall of the auxiliary extension tube 1.3 is connected to the endoscope channel extension tube 1.2 via the second connecting piece. The endoscope channel extension tube 1.2 is connected to the main extension tube 1.1 via the third connecting piece.

[0059] The pore closer 2 is detachably connected to the main extension tube 1.1, facilitating the locking of the pore closer 2.

[0060] The inner wall of the main extension tube 1.1 is provided with a limiting protrusion 1.6 for guiding the axial insertion of the end-closing device 2. The end-closing device 2 is equipped with a limiting groove 2.3 for axially sliding connection with the limiting protrusion 1.6. The end-closing device 2 and the main extension tube 1.1 are axially limited by a locking mechanism. The circumferential limitation of the end-closing device 2 is achieved by the limiting groove 2.3, and the axial limitation of the end-closing device 2 is achieved by the locking mechanism. The locking mechanism includes an annular groove provided on the outer wall of the main extension tube 1.1 and a snap-fit ​​part 2.2 fixed on the end-closing device 2. The snap-fit ​​part 2.2 is provided with a snap-fit ​​part that snaps into the annular groove.

[0061] The sheath 1 has an incision at its tip (sheath tip 1.4), and the obturator 2 has an opening at its tip (obturator tip 2.1) that blocks the main channel opening, flush with the outer contour of the incision. The obturator 2 fills in any sharp edges or openings at the tip of the sheath 1, creating a smooth closure. When the main channel is located at the upper end of the sheath 1, and the auxiliary channel and endoscope channel are located at the lower end of the sheath 1, the incision curves upwards from front to back. The tip of the sheath 1 has an oblique guide that extends upwards from front to back to the lower end of the incision. The oblique guide is connected to the incision by a convex, arc-shaped transition surface.

[0062] The outer wall of the main extension tube 1.1 is connected to an outwardly flared oval-shaped flared opening 1.5. The center of the oval-shaped flared opening 1.5 has an opening that communicates with the inner cavity of the main extension tube 1.1. The oval-shaped flared opening 1.5 is used to switch the airflow of the opening by pressing with the thumb, thereby adjusting the negative pressure.

[0063] When the device is inserted into the urethra, the obturator 2 is inserted into the main channel and locked relative to the main extension tube 1.1. The obturator tip 2.1 is flush with the sheath tip 1.4. The endoscope is inserted into the endoscope channel. After the sheath is in place, the device is flushed to remove blood clots.

[0064] When this device is used for blood clot flushing, the main extension tube 1.1 can be connected to a negative pressure suction device to efficiently suction blood clots out of the bladder. The endoscope channel extension tube 1.2 allows observation of the location and extent of blood clot removal through an endoscope (not shown). The auxiliary extension tube 1.3 is larger than the endoscope channel extension tube 1.2. Its feature is that when encountering large blood clots that cannot be suctioned out through the main channel, a blood clot crusher 4 can be used to enter the bladder through the auxiliary channel to stir and crush the large blood clots, reducing their volume before suctioning them out through the main channel, thus reducing the risk of cavity blockage.

[0065] In addition to allowing the blood clot breaking device 4 to be inserted, the auxiliary channel can also connect a three-way connector at the end of the auxiliary extension tube 1.3 to a flushing device for introducing flushing fluid, thereby instilling physiological saline into the bladder. At the same time, it works in conjunction with the main extension tube 1.1 to connect a negative pressure suction device to perform negative pressure suction and circulate flushing of the bladder to facilitate the removal of blood clots from the body.

[0066] See Figures 8 to 10 In specific embodiment 2, based on specific embodiment 1, a balloon dilator 3, slidably disposed within the main channel of the sheath 1, serves as the internal dilator; the internal dilator is connected to an inflation connector 3.2 for inflating the balloon 3.1. The outer contour of the balloon is spherical. After the sheath, together with the balloon dilator, is delivered to the urethral stricture, the stricture is dilated by inflating the balloon. Once the urethral stricture is dilated, the balloon dilator is removed.

[0067] See Figures 11 to 13 In specific embodiment 3, based on specific embodiment 1, an external dilator 3 of a balloon dilator 3 is fitted outside the sheath 1. The head end of the external dilator is closed, and the head end of the external dilator is a conical guide head structure with an increasing outer diameter. An inflation connector 3.2 for inflating the balloon 3.1 is connected to the external dilator. After the sheath and the balloon dilator are delivered to the urethral stricture, the stricture is dilated by inflating the balloon. After the urethral stricture is dilated, the external dilator and the sheath are removed, and then the sheath is reinserted for blood clot flushing. The balloon is a circular balloon.

[0068] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A bladder clot flushing device that also accommodates urethral dilation, comprising a sheath, characterized in that, The sheath has a main channel, an auxiliary channel, and an endoscope channel with decreasing inner diameters. The main channel is used to connect to a negative pressure suction device or a pore closer, and the main channel is connected to a main extension tube extending outward from the sheath. The auxiliary channel is used to pass through a blood clot breaking instrument or to connect to a flushing device for introducing flushing fluid, and the auxiliary channel is connected to an auxiliary extension tube extending outward from the sheath. The endoscope channel is connected to an endoscope channel extension tube extending outward from the sheath. It also includes a balloon dilator, which is sleeved outside the sheath or slidably disposed within the main channel, and a balloon is installed on the outer wall of the balloon dilator.

2. A bladder clot flushing device that also accommodates urethral dilation, as described in claim 1, characterized in that: The main channel, the auxiliary channel, and the endoscope channel are arranged clockwise or counterclockwise around the perimeter.

3. A bladder clot flushing device that also accommodates urethral dilation, as described in claim 1, characterized in that: The main extension tube is connected to the auxiliary extension tube via a first connecting piece, the outer wall of the auxiliary extension tube is connected to the endoscope channel extension tube via a second connecting piece, and the endoscope channel extension tube is connected to the main extension tube via a third connecting piece.

4. A bladder clot flushing device that also accommodates urethral dilation according to claim 1, characterized in that: An external expander of a balloon expander fitted outside the sheath; The head end of the external expansion member is closed, and the head end of the external expansion member is a conical guide head structure with an increasing outer diameter; The expansion member is connected to an inflation connector for inflating the balloon.

5. A bladder clot flushing device that also accommodates urethral dilation according to claim 1, characterized in that: An internal expansion member is a balloon dilator that is slidably disposed within the main channel; The inner expansion member is connected to an inflation connector for inflating the balloon.

6. A bladder clot flushing device that also accommodates urethral dilation according to claim 1, characterized in that: The pore closer is detachably connected to the main extension tube.

7. A bladder clot flushing device that also accommodates urethral dilation according to claim 1, characterized in that: The inner wall of the main extension tube is provided with a limiting protrusion for guiding the axial insertion of the end-hole closer, and the end-hole closer is provided with a limiting groove for axially sliding connection with the limiting protrusion. The pore closer and the main extension tube are axially limited by a locking mechanism.

8. A bladder clot flushing device that also accommodates urethral dilation according to claim 7, characterized in that: The locking mechanism includes an annular groove on the outer wall of the main extension tube and a snap-fit ​​component fixed on the pore closer. The snap-fit ​​component has a snap-fit ​​portion that snaps into the annular groove.

9. A bladder clot flushing device that also accommodates urethral dilation according to claim 1, characterized in that: The sheath has a slit at its head end, and the head end of the closure device blocks the opening at the head end of the main channel and is flush with the outer contour of the slit.

10. A bladder clot flushing device that also accommodates urethral dilation according to claim 1, characterized in that: The outer wall of the main extension tube is connected to an outwardly flared elliptical horn, and the center of the elliptical horn has an opening that communicates with the inner cavity of the main extension tube.

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