CN116370793A

CN116370793A - Visual catheter pulling device

Info

Publication number: CN116370793A
Application number: CN202310254984.5A
Authority: CN
Inventors: 王强; 吴瑞锋; 张敬红
Original assignee: Baoding No1 Central Hospital
Current assignee: Baoding No1 Central Hospital
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-07-04

Abstract

The invention discloses a visual catheter drawing device which comprises a drawing outer sleeve assembly, an ultra-smooth guide wire and a safe guide wire, wherein the drawing outer sleeve assembly comprises a urethral probe, a terminal casing and a head-neck bending and stretching connector, and the head-neck bending and stretching connector is fixedly connected between the urethral probe and the terminal casing; the bending of the head and neck ends of the urethral probe is realized through regulating and controlling the rotation driving piece to elastically stretch the connecting piece through the head and neck part, the urethra is guided to complete expansion after being bent through the urethral probe, then the guide wire is stretched through the external guide wire propelling mechanism, the tail end of the stent tube falls into the surrounding basket and is supported by the grabbing silk screen, the surrounding basket is driven to shrink through the tightening driving piece, the grabbing silk screen in the surrounding basket is tightened to grab the stent tube after being tightened, and an operator can pull out the device along the urethra together with the stent tube at the moment, so that the stent tube cannot smoothly pass through the urethra when encountering irregular narrow rings and irregular bulges of the prostatic hyperplasia lateral leaves and middle leaves.

Description

Visual catheter pulling device

Technical Field

The invention relates to the technical field of urethral catheterization appliances, in particular to a visual urethral catheterization tube drawing device.

Background

In the clinical practice of urinary surgery, there is a possibility that urinary tract stenosis is caused by inflammation, trauma (trauma or iatrogenic injury, etc.), hyperplasia of prostate, etc., and a urinary catheterization operation fails to form a difficult urethra. Once the difficult urethra is formed.

The most common treatment methods in clinical practice, except for invasive procedures such as cystostomy, are: 1. the urethral probe is formed by supporting the inner core of the catheter through the ultra-smooth guide wire, the two methods have advantages and disadvantages, but the two methods are both performed blindly and can be successfully performed by high-grade capital doctors with abundant experience, and the two methods have the defects that when the ultra-smooth guide wire is adopted, the urethral probe cannot smoothly pass through the urethra when the ultra-smooth guide wire is used, the urethral blanket formed by the hard steel wire supporting method is harder, the blind operation is easy to cause new urethral injury and even serious urethral hemorrhage, meanwhile, in order to prevent ureter stenosis after ureteroscope operation in clinic, the method of indwelling a ureteral stent tube is widely adopted, 4-6 weeks later cystoscopy utilizes foreign body forceps to pull out the stent tube, the hard cystoscopy and operation can cause pain discomfort of patients often to be anesthetized, the soft cystoscopy expense and consumable materials are expensive, and the fixed light source, the display and other equipment are required to support, so the applicability is not ideal. For this purpose, we propose a visual catheter drawing device.

Disclosure of Invention

The invention mainly aims to provide a visual urethral catheterization tube drawing device.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a visual catheterization tube drawing device, includes tube drawing overcoat subassembly, super smooth seal wire and safe seal wire, tube drawing overcoat subassembly includes urethra probe, terminal cover shell and the crooked connecting piece that stretches of head and neck, crooked connecting piece fixedly connected with of head and neck in the urethra probe with between the terminal cover shell, the interior illumination end and the built-in surrounding probe that are annular distribution of urethra probe end fixedly connected with a plurality of, super smooth seal wire link up the crooked connecting piece of urethra probe, terminal cover shell and head and neck, the one end of terminal cover shell is equipped with flushing brine injection portion and opens and close control module, the inboard fixedly connected with of urethra probe encircles the basket and tightens up the driving piece, tighten up the driving piece and be used for when the stand pipe pulls out will encircle the basket and tighten up.

The invention is further improved in that the safety guide wire is fixedly connected to the tail end of the ultra-smooth guide wire, and the safety guide wire is fixed with the output end of the external guide wire propelling mechanism.

The invention is further improved in that a rotary driving piece is arranged on the inner side of the terminal casing, and the output end of the rotary driving piece is fixedly connected with the urethral probe and is used for driving the urethral probe to rotate along the required direction.

The invention is further improved in that the on-off control module comprises a data wire passing cavity, a lamp source brightness regulating and controlling part and a head and neck bending control switch, wherein the lamp source brightness regulating and controlling part and the head and neck bending control switch are fixedly connected to the outer wall of the data wire passing cavity.

The invention is further improved in that three groups of transversely distributed grabbing silk screens are arranged on the inner side of the encircling basket and used for grabbing the bracket tube after the encircling basket is tightened.

The invention further improves the use steps of the visual catheter pulling device, which comprises the following steps:

step S1, when a patient needs to catheterize, connecting a flushing saline injection part with flushing normal saline, then, conveying the tube drawing outer sleeve assembly and the ultra-smooth guide wire into a urethral orifice, and then, propelling the bladder until the safety guide wire completely enters the bladder, and withdrawing the whole tube drawing outer sleeve assembly through the urethral orifice;

s2, when the patient needs to dilate the urethra, the bending of the head and neck ends of the urethral probe is realized by regulating and controlling the elasticity of the rotary driving piece through the head and neck bending connecting piece, so that the urethra is guided to complete the dilatation after being bent through the urethral probe;

and S3, when the patient needs to pull out the stent tube, the external guide wire pushing mechanism is used for expanding the ultra-sliding guide wire, so that the tail end of the stent tube falls into the surrounding basket, then the surrounding basket is driven by the tightening driving piece to shrink, the grabbing silk screen grabs the tightening stent tube, and then the device can be pulled out along the urethra together with the stent tube.

Compared with the prior art, when a cystoscope examination is carried out on a patient in a urethral stricture state, the support tube is pulled out, the rotation driving piece can be regulated and controlled to elastically stretch the connecting piece through the head and neck part, the bending of the head and neck end of the urethral probe is realized, the urethral probe is guided to be bent, the expansion is completed, the guide wire is then stretched by the external guide wire propelling mechanism, the tail end of the support tube falls into the surrounding basket and is supported by the grabbing silk screen, the surrounding basket is driven to shrink by the tightening driving piece, the grabbing silk screen in the surrounding basket is tightened and then the support tube is tightened, and an operator can pull out the device with the support tube along the urethra at the moment synchronously, so that the support tube cannot smoothly pass through the urethra when encountering irregular narrow rings and irregular bulges of the prostatic hyperplasia side leaves and middle leaves, and the applicability effect is effectively improved.

Drawings

Fig. 1 is a view showing the composition of a visual urinary catheter drawing device according to the present invention.

Fig. 2 is a side view of a visual urinary catheter drawing device of the invention.

Fig. 3 is a cross-sectional view of a visual urinary catheter drawing device of the invention.

In the figure: 1. a tube drawing outer sleeve assembly; 11. a urethral sound; 12. a terminal casing; 13. a head-neck bending and stretching connecting piece; 131. a rotary driving member; 14. embedding an illumination end head; 15. the embedded ring surrounds the probe; 2. an ultra-smooth guide wire; 21. a safety guidewire; 3. a flushing brine injection part; 4. an opening and closing control module; 41. a data wire passing cavity; 42. a lamp source brightness adjusting and controlling part; 43. a head and neck flexion control switch; 5. surrounding the basket; 501. grabbing a silk screen; 51. tightening the drive.

Detailed Description

The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are shown in schematic drawings, rather than physical drawings, and are not to be construed as limiting the present invention, and in order to better explain the detailed description of the invention, certain components of the drawings may be omitted, enlarged or reduced in size, and not represent the actual product, and it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted, and that all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the invention based on the detailed description of the present invention.

Examples

Referring to fig. 1-3, a visual catheter drawing device comprises a drawing outer sleeve assembly 1, an ultra-smooth guide wire 2 and a safety guide wire 21, wherein the drawing outer sleeve assembly 1 comprises a urethra probe 11, a terminal sleeve shell 12 and a head and neck bending connecting piece 13, the head and neck bending connecting piece 13 is fixedly connected between the urethra probe 11 and the terminal sleeve shell 12, a plurality of annularly distributed embedded illumination ends 14 and embedded surrounding probes 15 are fixedly connected to the end positions of the urethra probe 11, the ultra-smooth guide wire 2 penetrates through the urethra probe 11, the terminal sleeve shell 12 and the head and neck bending connecting piece 13, one end of the terminal sleeve shell 12 is provided with a flushing saline injection part 3 and an opening and closing control module 4, the inner side of the urethra probe 11 is fixedly connected with a surrounding basket 5 and a tightening driving piece 51, and the tightening driving piece 51 is used for tightening the surrounding basket 5 when a stent is drawn out.

In this embodiment, in order to solve the problem that the urethra can not pass through the urethra smoothly when encountering irregular narrow ring and irregular bulge of prostatic hyperplasia side leaves and middle leaves, a urethral blanket formed by using a rigid steel wire supporting method is harder, and blind operation is easy to cause new urethral damage and even serious urethral bleeding hidden trouble.

The safety guide wire 21 is fixedly connected to the tail end of the ultra-smooth guide wire 2, and the safety guide wire 21 is fixed with the output end of the external guide wire propulsion mechanism; the safety guide wire 21 is fixed with an external guide wire propelling mechanism, the guide wire propelling mechanism is used for controlling the opening and closing states of the guide wire at the head end, after the guide wire is determined to completely enter the bladder, the catheter to be detained is placed along the safety guide wire 21 and the ultra-smooth guide wire 2 after the tube drawing device is integrally removed, so that the catheterization operation is completed.

Wherein, a rotary driving piece 131 is arranged on the inner side of the terminal casing 12, and the output end of the rotary driving piece 131 is fixedly connected with the urethral probe 11 and is used for driving the urethral probe 11 to rotate along the required direction; the rotary driving part 131 can adopt a conventional miniature servo motor, and the urethral probe 11 can expand the urethral orifice when the urethral canal of a patient is narrow by controlling the urethral probe 11 to rotate along the connecting shaft point of the output end of the rotary driving part 131, so that the urethral probe 11 is used for smoothness when the urethral catheter is pulled out.

The on-off control module 4 comprises a data wire passing cavity 41, a light source brightness regulating part 42 and a head and neck bending control switch 43, wherein the light source brightness regulating part 42 and the head and neck bending control switch 43 are fixedly connected to the outer wall of the data wire passing cavity 41; the data wire passing cavity 41 is used for rotating the driving piece 131 and tightening the driving piece 51 to supply the access of the wire harness, when the head and neck bending control switch 43 is used for expanding the urethra of the urethral probe 11, the direction of the urethral probe 11 is adjusted and rotated, the light source brightness adjusting and controlling part 42 is used for controlling the light source of the embedded illumination end 14 to start, when the tube drawing outer sleeve assembly 1 is inserted into the urethral orifice, the embedded surrounding probe 15 is used for imaging in the inserting state process, the visibility of an operator during the pulling and inserting of the device is maintained, and the operation blindness is reduced.

Three groups of transversely distributed grabbing silk screens 501 are arranged around the inner side of the basket 5 and are used for grabbing the support tube after the basket 5 is tightened; the grabbing silk screen 501 is placed into the support tube to achieve the sliding limiting effect after the support tube is placed in the surrounding basket 5, and meanwhile after the surrounding basket 5 is tightened through the tightening driving piece 51, the support tube is wrapped and fixed through the grabbing silk screen 501, the support tube is directly grabbed, and the support tube is conveniently pulled out by an operator.

When the urethral catheterization stent tube is pulled out, firstly, the flushing saline injection part 3 is connected with flushing normal saline, then the catheter pulling jacket assembly 1 and the ultra-smooth guide wire 2 are sent into the urethral meatus and then the bladder is pushed in until the safety guide wire 21 completely enters the bladder, the bending of the head and neck ends of the urethral probe 11 is realized through the driving control of the regulating and controlling rotary driving piece 131, the urethral is guided to be expanded after being bent and supported by the urethral probe 11, the ultra-smooth guide wire 2 is propped up by the external guide wire pushing mechanism after the completion, the tail end of the stent tube in the bladder falls into the surrounding basket 5 and is supported by the blocking of the grabbing wire mesh 501, the surrounding basket 5 is driven to shrink by the tightening driving piece 51, the grabbing wire mesh 501 grabs the stent tube, and an operator tightens the device together with the stent tube along the expanded urethra directly, so that the urethral injury or serious urethral caused by the narrow urethral meatus is reduced when the cystoscope examination is carried out in each period.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a visual catheterization tube drawing device, includes tube drawing overcoat subassembly (1), super smooth seal wire (2) and safe seal wire (21), its characterized in that, tube drawing overcoat subassembly (1) include urethra probe (11), terminal cover shell (12) and neck crooked connecting piece (13), neck crooked connecting piece (13) fixedly connected with urethra probe (11) with between terminal cover shell (12), the embedded illumination end (14) and the embedded surrounding probe (15) that are annular distribution of a plurality of are to urethral probe (11) end position fixedly connected with, super smooth seal wire (2) link up urethral probe (11), terminal cover shell (12) and neck crooked connecting piece (13), the one end of terminal cover shell (12) is equipped with flushing brine injection portion (3) and opens and close control module (4), urethral probe (11) inboard fixedly connected with encircles basket (5) and driving piece (51), tightening up driving piece (51) are used for when the support pipe is out with the support and encircle (5) and tighten up.

2. A visual urinary catheter pull device according to claim 1, wherein: the safety guide wire (21) is fixedly connected to the tail end of the super-smooth guide wire (2), and the safety guide wire (21) is fixed with the output end of the external guide wire propelling mechanism.

3. A visual urinary catheter pull device according to claim 1, wherein: a rotary driving piece (131) is arranged on the inner side of the terminal casing (12), and the output end of the rotary driving piece (131) is fixedly connected with the urethral probe (11) and is used for driving the urethral probe (11) to rotate along the required direction.

4. A visual urinary catheter pull device according to claim 3, wherein: the on-off control module (4) comprises a data wire passing cavity (41), a light source brightness adjusting and controlling part (42) and a head and neck bending control switch (43), and the light source brightness adjusting and controlling part (42) and the head and neck bending control switch (43) are fixedly connected to the outer wall of the data wire passing cavity (41).

5. A visual urinary catheter pull device according to claim 1, wherein: three groups of transversely distributed grabbing silk screens (501) are arranged on the inner side of the encircling basket (5) and used for grabbing the support tube after the encircling basket (5) is tightened.

6. The use of a visual urinary catheter pull device according to any one of claims 1-5, comprising the steps of:

step S1, when a patient needs to catheterize, connecting a flushing saline injection part (3) with flushing normal saline, then, feeding the tube drawing outer sleeve assembly (1) and the ultra-smooth guide wire (2) into a urethral orifice, and then, pushing the bladder until the safety guide wire (21) completely enters the bladder, and then, withdrawing the tube drawing outer sleeve assembly (1) integrally through the urethral orifice;

s2, when the patient needs to dilate the urethra, the rotation driving piece (131) is regulated to elastically realize the bending of the head and neck ends of the urethral probe (11) through the head and neck bending connecting piece (13), so that the urethra is guided to complete the dilatation after being bent through the urethral probe (11);

and S3, when the patient needs to pull out the stent tube, the ultra-smooth guide wire (2) is propped up by the external guide wire propelling mechanism, so that the tail end of the stent tube falls into the surrounding basket (5), then the surrounding basket (5) is driven to shrink by the tightening driving piece (51), the grabbing silk screen (501) grabs the tightened stent tube, and then the device can be pulled out along the urethra together with the stent tube.