CN103431888B - Push type bladder diverticulum calculus removing device - Google Patents

Abstract

The invention relates to a push type stone removal device for bladder diverticulum calculi, which comprises a mirror body, one end of the mirror body is connected with a telescopic frame body, the other end of the telescopic frame body is provided with a closing assembly, and the telescopic frame body is covered with an elastic cylindrical film. The frame body and the closing assembly are stretched and closed through the drive assembly, and a lithotripsy assembly and an endoscopic imaging assembly are arranged in the telescopic frame, the lithotripsy assembly is a Di laser lithotripsy assembly, and the lithotripsy assembly includes a laser optical fiber; the propulsion of the present invention The stone removal device for bladder diverticulum stones can confine the stones in the diverticulum of the bladder in a closed space. When lithotripsy is performed in this closed space, stone residues will not enter the body, and there will be no stone residue after surgery, and will not damage the surrounding area. The tissue is damaged, and the calculus debris has little interference with the endoscopic field of view, and has little impact on the operation process, which can significantly improve the efficiency and effect of the operation, and significantly reduce the pain and burden of the patient.

Description

A stone removal device for pushing bladder diverticulum calculi

technical field

The invention relates to the technical field of medical devices, in particular to a stone removal device for push-type bladder diverticulum stones.

Background technique

Bladder stones are common diseases of the urinary system, mostly secondary to lower urinary tract obstruction and stones from the kidneys and ureters entering the bladder, especially stones in the lower ureter. Bladder stones can usually be divided into single stones or multiple stones, and their solutions are also different. Surgical treatment methods include endoscopic surgery, open surgery, and extracorporeal shock wave lithotripsy (ESWL). In general, extracorporeal shock wave lithotripsy is not effective due to factors such as greater activity and the special position of the bladder in the pelvis. Small single stones in the bladder can be removed by lithotripsy forceps, laser and other methods, but for large single stones (stone diameter ≥ 3cm) or multiple stones, the stone crushing forceps cannot be grasped and stone debris interferes with vision These factors lead to the obvious limitations of the above solutions, prolonging the operation time and increasing the operation risk. Since the existing lithotripsy techniques are carried out in relatively open spaces in the bladder, for patients with complications such as bladder diverticulum, stone debris often remains in the diverticulum, which is not easy to wash out, causing stone recurrence and enlargement. The pain and burden of patients, and bladder stone removal due to large trauma, should not be used as the first choice for the treatment of bladder stones.

Contents of the invention

The purpose of the present invention is to solve the deficiencies of the above-mentioned technical problems, to provide a stone removal device for pusher bladder diverticulum stones, which can place the stones in the bladder diverticulum in a closed space for crushing, and the stone residues will not enter the body, and the stones will not There is no damage to the surrounding tissue, and the interference of stone debris on the endoscopic field of view is small, which can significantly improve the efficiency and effect of the operation, and reduce the pain and burden of the patient.

In order to solve the deficiencies of the above-mentioned technical problems, the technical solution adopted by the present invention is: a stone removal device for push-type bladder diverticulum calculus, comprising a mirror body and an outer sheath, the outer sheath is arranged at one end of the mirror body, and the mirror body is provided with an advanced Water outlet, water outlet valve, eyepiece and light source;

The end of the outer sheath away from the mirror body is connected with a propulsion assembly, the propulsion assembly is composed of a telescopic frame and an elastic cylindrical film sleeved outside the telescopic frame, the other end of the propelling assembly is provided with a closing assembly, and the telescopic frame and the closing assembly are driven The components are stretched and closed, and a lithotripsy component and an endoscopic imaging component are arranged in the telescopic frame, and the lithotripsy component is a pneumatic ballistic lithotripsy component, and the lithotripsy component includes a lithotripsy needle;

The telescopic frame body includes two side arms and at least one pair of support rings. The two side arms are hinged to each other to form an X shape. One end of the two adjustment rods is respectively hinged to the two side arms, and the other ends of the two adjustment rods pass The shafts are hinged together, and each pair of supporting rings is composed of two semicircular rings with opposite openings, and the two semicircular rings are respectively arranged on the two side arms, and all the supporting rings on the telescopic frame are arranged on the same side ;

One end of the elastic cylindrical film is fixedly connected to the outer sheath, and the other end of the elastic cylindrical film is fixedly connected to a pair of support rings at the end of the telescopic frame body away from the mirror body;

The closing unit includes a plurality of closing rods, one end of the closing rod is provided with a through hole, and the closing rod is sleeved on a pair of support rings at one end away from the mirror body through the through hole, and the free ends of all the closing rods are aggregated together, The closing rod jacket is provided with an elastic film;

The driving assembly includes a telescopic driving unit and a closing driving unit;

The telescopic drive unit is composed of drive rod Ⅰ and movable handle Ⅰ, and the closed drive unit is composed of drive ring, transmission rod, drive rod Ⅱ and movable handle Ⅱ;

The movable handle I and the movable handle II are arranged at the lower end of the mirror body, and the lower end of the mirror body is also provided with a fixed handle, and the movable handle I and the movable handle II are both hingedly arranged on the mirror body through pin shafts;

One end of the drive rod I is hinged to the movable handle I, and the other end is hinged to the hinge shafts of the two side arms of the telescopic unit closest to the mirror body;

Each closing rod has a through hole and one end is hinged with a transmission rod. One end of the transmission rod is hinged to the closing rod, and the other end is hinged to the driving ring, and the driving ring is connected to the movable handle II through the driving rod II.

The cavity of the outer sheath is provided with an instrument channel tube and an optical fiber channel tube, the lithotripsy needle of the lithotripsy component is set in the instrument channel tube, one end of the laser fiber extends into the cavity of the telescopic frame body, and the endoscopic imaging component is set In a fiber channel tube, its objective end is positioned at the port of the sheath.

The cavity of the outer sheath is also provided with a water inlet channel pipe, which is connected to the water inlet on the mirror body, and the gap in the outer sheath is a water outlet channel, and the water outlet channel is connected to the water outlet valve arranged on the mirror body. connect.

The free ends of the closing rods are gathered together when the closing assembly is in a non-working state.

The endoscopic imaging assembly also includes an eyepiece, a light source, a light source fiber and an imaging return fiber, the eyepiece and the light source are respectively arranged on the mirror body, one end of the imaging return fiber is connected to the eyepiece, and the other end passes through the fiber channel tube to connect with the objective lens Connecting, one end of the light source fiber is connected to the light source, and the other end passes through the fiber channel tube and extends to the end of the fiber channel tube.

Beneficial effect

The push-type bladder diverticulum calculus removal device of the present invention can confine the calculi in the diverticulum of the bladder in a closed space, and when the lithotripsy operation is performed in the closed space, the calculus residues will not enter the body, and there will be no residual calculus after operation. It will not cause damage to the surrounding tissues, and the calculus debris will have little interference with the endoscopic field of view and have little impact on the operation process, which can significantly improve the operation efficiency and effect, and significantly reduce the pain and burden of the patient.

Description of drawings

Fig. 1 is the structure schematic diagram of the stone removal device of the push type bladder diverticulum calculi of the present invention;

Fig. 2 is a schematic structural view of the telescopic frame body of the present invention;

Fig. 3 is a schematic structural view of the closure assembly of the present invention;

Fig. 4 is a schematic diagram of the principle of the action of the driving assembly driving the closing assembly of the present invention;

Fig. 5 is a structural schematic diagram I of the telescopic drive unit of the present invention;

Fig. 6 is a schematic structural view II of the telescopic drive unit of the present invention;

Fig. 7 is a structural schematic diagram I of the closing drive unit of the present invention;

Fig. 8 is a schematic structural diagram II of the closing drive unit of the present invention;

Marks in the figure: 1. mirror body, 2. water inlet, 3. elastic cylindrical film, 4. eyepiece, 5. light source, 6. telescopic frame body, 601, side arm, 602, support ring, 603, adjustment rod, 7. Closing assembly, 701, closing rod, 801, driving rod I, 802, movable handle I, 803, driving rod, 804, driving ring, 805, driving rod II, 806, movable handle II, 9, outer sheath.

Detailed ways

As shown in FIG. 1 : a push-type stone removal device for bladder diverticulum calculi, an outer sheath mirror body 1 is provided with a water inlet 2 , a water outlet valve, an eyepiece 4 and a light source 5 . The end of the outer sheath 9 away from the mirror body 1 is connected with a propelling assembly, the propelling assembly is composed of a telescopic frame body 6 and an elastic cylindrical film 3 sleeved outside the telescopic frame body 6, and the other end of the propelling assembly is provided with a closing assembly 7, The telescopic frame body 6 and the closing assembly 7 are stretched and closed by the drive assembly. The telescopic frame body 6 is provided with a gravel assembly and an endoscopic imaging assembly. The gravel assembly is a pneumatic ballistic lithotripsy assembly. Needle;

As shown in Figures 1 and 2: the telescopic frame body 6 includes two side arms 601 and at least one pair of support rings 602. The two side arms 601 are hinged to each other and form an X shape. The arm 601 is hinged, and the other ends of the two adjusting rods 603 are hinged together through pin shafts. Each pair of support rings 602 is composed of two semicircular rings with opposite openings, and the two semicircular rings are respectively arranged on two sides. On the arm 601, all the support rings 602 on the telescopic frame body 6 are arranged on the same side;

One end of the elastic cylindrical film 3 is fixedly connected to the outer sheath 9, and the other end of the elastic cylindrical film 3 is fixedly connected to a pair of support rings 602 at the end of the telescopic frame body 6 away from the mirror body 1;

The cavity of the outer sheath 9 is provided with an instrument channel tube and an optical fiber channel tube, the lithotripsy needle of the lithotripsy assembly is arranged in the instrument channel tube, and one end of the laser fiber extends into the cavity of the telescopic frame body 6 for endoscopic imaging. The assembly is set in a fiber channel tube with its objective end set at the port of the outer sheath 9 .

The cavity of the outer sheath 9 is also provided with a water inlet channel pipe, which is connected with the water inlet 2 on the mirror body 1, and the gap in the outer sheath 9 is a water outlet channel, and the water outlet channel is connected with the mirror body 1. connected to the outlet valve on the

The endoscopic imaging assembly also includes an eyepiece 4, a light source 5, a light source fiber and an imaging return fiber, the eyepiece 4 and the light source 5 are respectively arranged on the mirror body 1, and one end of the imaging return fiber is connected to the eyepiece 4, and the other end passes through the The fiber channel tube is connected with the objective lens, one end of the optical fiber of the light source 5 is connected with the light source 5, and the other end passes through the fiber channel tube and extends to the end of the fiber channel tube.

As shown in Figure 3: the closure assembly 7 includes a plurality of closure rods 701, one end of the closure rod 701 is provided with a through hole, and the closure rod 701 is sleeved on a pair of support rings 602 at the end away from the mirror body 1 through the through hole Above, the free ends of all the closing rods 701 are gathered together, and the closing rods 701 are covered with an elastic film, and the free ends of the closing rods 701 are gathered together when the closing assembly 7 is in a non-working state.

As shown in Figure 4-8: the drive assembly 8 includes a telescopic drive unit and a closed drive unit; the telescopic drive unit is composed of a drive rod I801 and a movable handle I802, and the close drive unit is composed of a transmission rod 803, a drive ring 804, and a drive rod II805 It is composed of movable handle II 806; the movable handle I 802 and movable handle II 806 are arranged at the lower end of the mirror body 1, and the lower end of the mirror body 1 is also provided with a fixed handle 807, and the movable handle I 802 and the movable handle II 806 are hinged and arranged through pin shafts On the mirror body 1; one end of the driving rod I 801 is hinged to the movable handle I 802, and the other end is hinged to the hinge shafts of the two side arms 601 of the telescopic unit closest to the mirror body 1; each of the closing rods 701 has a One end of the hole is hinged with a transmission rod 803, one end of the transmission rod 803 is hinged with the closing rod 701, and the other end is hinged with the driving ring 804, and the driving ring 804 is connected with the movable handle II 806 through the driving rod II 805.

When in use, introduce the lithoscopist into the bladder diverticulum of the patient with calculus, and use the imaging component to make the lithotripsy end of the lithoscopist reach the calculus. Since the space of the bladder diverticulum is relatively narrow, move the movable handle I802 to expand the telescopic frame body 6, and at the same time Pull the movable handle II 806 to make the closing component 7 in the open state, the closing rod 7 of the closing component 7 is close to the side wall of the bladder diverticulum, push the mirror body 1 to make the stone enter the cavity of the closing component 7, and then release the movable handle II 806 to make the Under the action of the elastic membrane, the opening of the closing component 7 shrinks automatically. At this time, the stone is in a closed space, and the stone can be crushed by the stone crushing component. The stone crushing operation is carried out in the closed space, and the stone residue will not enter In the diverticulum of the bladder, there is no residual stone after operation and will not cause damage to the surrounding tissue, and the interference of the stone fragments on the endoscopic field of view is small, and has little impact on the operation process, which can significantly improve the efficiency and effect of the operation, and significantly reduce the burden on the patient. pain and burden.

Claims (5)

1. the stone taking device of a pusher calculus in diverticulum of bladder, comprise mirror body (1) and epitheca (9), epitheca (9) is arranged on one end of mirror body (1), mirror body (1) is provided with water inlet (2), outlet valve, eyepiece (4) and light source (5), it is characterized in that:

Described epitheca (9) is connected with propulsion assembly away from one end of mirror body (1), propulsion assembly is by the support body that stretches (6) and be set in flexible support body (6) elastic cylinder thin film (3) outward and form, the other end of propulsion assembly arranges closing assembly (7), flexible support body (6) and closing assembly (7) are undertaken stretching and closing by driven unit (8), rubble assembly and based endoscopic imaging assembly is provided with in flexible support body (6), described rubble assembly is pneumatic ballistic lithotripsy assembly, and rubble assembly comprises rubble pin;

Flexible support body (6) comprises two side arms (601) and at least one pair of support ring (602), article two, side arm (601) is X-shaped after being hinged, one end of two adjusting rods (603) is hinged respectively at two side arms (601), and the other end of two adjusting rods (603) by hinge together, the semicircular ring that the often pair of support ring (602) is oppositely arranged by two openings forms, two semicircular ring are separately positioned on two side arms (601), and the upper all support rings (602) of flexible support body (6) are arranged on phase the same side;

One end of elastic cylinder thin film (3) is fixedly connected with epitheca (9), and the other end of elastic cylinder thin film (3) is fixedly connected with a pair support ring (602) of flexible support body (6) away from mirror body (1) one end;

Described closing assembly (7) comprises many closed bars (701), one end of closed bar (701) is provided with through hole, closed bar (701) is set on a pair support ring (602) away from mirror body (1) one end by this through hole, the free-radial copolymering of all closed bars (701) together, is arranged with elastic film outside closed bar (701);

Described driven unit (8) comprises telescopic drive unit and closed driver element;

Telescopic drive unit is made up of drive rod I (801) and flexible handle I (802), and closed driver element is made up of drive link (803), driving ring (804), drive rod II (805) and flexible handle II (806);

Described flexible handle I (802) and flexible handle II (806) are arranged on the lower end of mirror body (1), the lower end of described mirror body (1) is also provided with fixed handle (807), and flexible handle I (802) and flexible handle II (806) are all arranged on mirror body (1) by hinge;

Described drive rod I (801) one end and flexible handle I (802) hinged, the other end is hinged with closest to the jointed shaft of telescopic unit two side arms (601) of mirror body (1);

Every root closes bar (701) to be had through hole one end and is all hinged with drive link (803), one end and the closed bar (701) of drive link (803) are hinged, on the hinged driving ring of the other end (804), driving ring (804) is connected with flexible handle II (806) by drive rod II (805).

2. the stone taking device of a kind of pusher calculus in diverticulum of bladder as claimed in claim 1, it is characterized in that: the intracavity of described epitheca (9) is provided with instrument channel pipe and optical-fibre channel pipe, the rubble pin of rubble assembly is arranged in instrument channel pipe, one end of laser fiber is stretched in the cavity of flexible support body (6), based endoscopic imaging assembly is arranged in optical-fibre channel pipe, and its objective end is arranged on the port of epitheca (9).

3. the stone taking device of a kind of pusher calculus in diverticulum of bladder as claimed in claim 1, it is characterized in that: the intracavity of described epitheca (9) is also provided with intake tunnel pipe, water inlet (2) on intake tunnel Guan Yujing body (1) is connected, space in epitheca (9) is exhalant canal, and exhalant canal is connected with the outlet valve be arranged on mirror body (1).

4. the stone taking device of a kind of pusher calculus in diverticulum of bladder as claimed in claim 1, is characterized in that: described closing assembly (7) closes the free-radial copolymering of bar (701) together when off working state.

5. the stone taking device of a kind of pusher calculus in diverticulum of bladder as claimed in claim 1, it is characterized in that: described based endoscopic imaging assembly also comprises eyepiece (4), light source (5), luminous source optical fiber and imaging and returns optical fiber, eyepiece (4) and light source (5) are separately positioned on mirror body (1), one end that imaging returns optical fiber is connected with eyepiece (4), the other end is connected with object lens through optical-fibre channel pipe, one end of luminous source optical fiber is connected with light source (5), and the other end passes optical-fibre channel pipe and extends to the end of optical-fibre channel pipe.