CN103431890B - Push type renal calyce calculus removing device - Google Patents

Abstract

The invention relates to a push type renal calyce calculus removing device. The push type renal calyce calculus removing device comprises a lens body and an outer sheath, wherein the outer sheath is arranged at one end of the lens body, a water inlet is formed in the lens body, and a water outlet valve, an eye lens and a light source are arranged on the lens body; one end of the outer sheath is connected with a pushing assembly, the pushing assembly is composed of a retractable frame body and an elastic cylinder film sheathed outside the retractable frame body, a closing assembly is arranged at the other end of the pushing assembly, and the retractable frame body and the closing assembly are driven by virtue of a driving assembly. A calculus crushing end of the push type renal calyce calculus removing device can be inserted into the interior of a renal calyce, a calculus in the renal calyce can be placed in an enclosed space and crushed, no calculus residue enters a human body, no calculus residue is produced, and no damage is caused to surrounding tissues; meanwhile, interference of calculus chips to view of an endoscope is small, operation efficiency and an operation result can be obviously improved, and pain and burden of a patient can be alleviated.

Description

A kind of propelling calices calculus removal device

technical field

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

Background technique

Kidney stones are stones that occur in the renal calices, renal pelvis, and the junction between the renal pelvis and the ureter. Clinically, renal cast stones, multiple calculi, and calices are refractory renal stones. Extracorporeal shock wave lithotripsy (ESWL) is effective for such stones Minor, and more complications, and open surgery can cause renal parenchyma laceration, renal hemorrhage, and even nephrectomy. Due to the special structure of the kidney and the special environment in which the stones are located in the calices during the lithotripsy process, the space in the calices is small, and it is difficult for ordinary lithotripsy instruments to reach the calices, which makes it more troublesome to remove stones from the calices. The stone crushing machine entered the renal calices. During the stone crushing process, stone fragments easily entered the renal calices, resulting in residual stones. The operation was not complete and the treatment effect was not good.

Contents of the invention

The purpose of the present invention is to solve the deficiencies of the above-mentioned technical problems, and to provide a push-type renal calices stone removal device, the crushed stone end of the stone removal device can extend into the inner calices, and place the calculus in the renal calices in a closed space Lithotripsy, stone residue does not enter the body, there is no stone residue, and there is no damage to the surrounding tissues. The stone debris interferes little with the endoscopic field of view, 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 push-type calyceal stone removal device, 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 a water inlet , 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 an ultrasonic lithotripsy component, and the lithotripsy component includes an ultrasonic generator and a lithotripsy rod;

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 rod 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 crushed stone end of the push-type renal calices calculus removal device of the present invention can extend into the renal calices, place the calculus in the renal calices in a closed space for crushing, the calculus residue does not enter the body, there is no residual calculus, and the surrounding There is no damage to the 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.

Description of drawings

Fig. 1 is a schematic structural view of the push type calices calculus removal device 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 Figure 1: a push-type kidney stone removal device, including a mirror body 1 and an outer sheath 9, the outer sheath 9 is arranged at one end of the mirror body 1, and the mirror body 1 is provided with a water inlet 2, a water outlet valve, and an eyepiece 4 and 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 telescoping frame body 6 and the closing assembly 7 are stretched and closed through the drive assembly, and the telescoping frame body 6 is provided with a lithotripsy assembly and an endoscopic imaging assembly, the lithotripsy assembly is an ultrasonic lithotripsy assembly, and the lithotripsy assembly includes an ultrasonic generator and gravel poles;

As shown in Figures 1 and 2, the telescopic frame body 6 can expand and contract in the radial direction. 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. , one end of the two adjustment rods 603 is hinged to the two side arms 601 respectively, and the other ends of the two adjustment rods 603 are hinged together through a pin shaft, and each pair of support rings 602 is composed of two semicircular rings with opposite openings Composition, two semi-circular rings are respectively arranged on two side arms 601, and all 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 rod 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 light source fiber 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 renal calices of the calculus patient, and use the imaging component to make the crushed end of the lithoscopist reach the calculus. Since the space in the renal calices is relatively narrow, the movable handle I802 is pulled to expand the telescopic frame body 6, At the same time, move the movable handle II 806 to make the closing component 7 in the open state, the closing rod 701 of the closing component 7 is close to the side wall of the renal calices, 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 Under the action of the elastic film, the opening of the closing assembly 7 shrinks automatically. At this time, the stone is in a closed space, and the stone can be crushed by the stone crushing assembly. Entering into the calices, there will be no residual stones after operation, and will not cause damage to the surrounding tissues, and the interference of the stone fragments on the endoscopic field of view is small, and the impact on the operation process is small, which can significantly improve the operation efficiency and effect, and significantly reduce the risk of injury. Patient pain and burden.

Claims (5)

1. A push-type kidney stone removal device, comprising a mirror body (1) and an outer sheath (9), the outer sheath (9) is arranged at one end of the mirror body (1), and the mirror body (1) is provided with a water inlet (2), outlet valve, eyepiece (4) and light source (5), characterized in that: The end of the outer sheath (9) far away from the mirror body (1) is connected with a propulsion assembly, which consists of a telescopic frame (6) and an elastic cylindrical film (3) sleeved outside the telescopic frame (6), The other end of the propulsion component is provided with a closing component (7), and the telescopic frame body (6) and the closing component (7) are stretched and closed through the driving component (8). An imaging component, the lithotripsy component is an ultrasonic lithotripsy component, and the lithotripsy component includes an ultrasonic generator and a lithotripsy rod; 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 bar side arms (601) are hinged, and the other ends of the two adjustment rods (603) are hinged together through pin shafts. Each pair of support rings (602) is composed of two semicircular rings with opposite openings. The two semicircular rings They are respectively arranged on the two side arms (601), and all the supporting 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 connected to a pair of support rings (602) at the end of the telescopic frame body (6) away from the mirror body (1). fixed connection; The closing assembly (7) includes a plurality of closing rods (701), one end of the closing rod (701) is provided with a through hole, and the closing rod (701) is sleeved on one end away from the end of the mirror body (1) through the through hole. On the support ring (602), the free ends of all the closing rods (701) are aggregated together, and the outer covering of the closing rods (701) is provided with an elastic film; The driving assembly (8) includes a telescopic driving unit and a closing driving unit; The telescopic drive unit consists of a drive rod I (801) and a movable handle I (802), and the closed drive unit consists of a drive rod (803), a drive ring (804), a drive rod II (805) and a 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), movable handle I (802) and The movable handle II (806) is hingedly arranged on the mirror body (1) through pin shafts; One end of the drive 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 closing rod (701) has a through hole and one end 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 drive ring (804). The drive ring (804) It is connected with the movable handle II (806) through the driving rod II (805). 2. A push-type calices calculus removal device according to claim 1, characterized in that: the cavity of the outer sheath (9) is provided with an instrument channel tube and an optical fiber channel tube, and the lithotripsy rod of the lithotripsy component Set in the instrument channel tube, one end of the laser fiber extends into the cavity of the telescopic frame body (6), the endoscopic imaging component is set in the fiber channel tube, and its objective lens end is set at the port of the outer sheath (9). 3. A push-type calices calculus removal device according to claim 1, characterized in that: the cavity of the outer sheath (9) is also provided with a water inlet channel tube, and the water inlet channel tube is connected with the mirror body (1 ), the gap in the sheath (9) is the water outlet channel, and the water outlet channel is connected to the water outlet valve arranged on the mirror body (1). 4 . The push-type kidney stone removal device according to claim 1 , characterized in that: the free ends of the closing rod ( 701 ) of the closing assembly ( 7 ) are aggregated together in a non-working state. 5 . 5. The pusher calices calculus removal device according to claim 1, characterized in that: the endoscopic imaging component also includes an eyepiece (4), a light source (5), a light source optical fiber and an imaging return optical fiber, the eyepiece (4) and the light source (5) are respectively arranged on the mirror body (1), one end of the imaging return fiber is connected to the eyepiece (4), the other end is connected to the objective lens through the fiber channel tube, and one end of the light source fiber is connected to the light source ( 5) are connected, and the other end passes through the Fiber Channel tube and extends to the end of the Fiber Channel tube.