CN215425066U

CN215425066U - Stone taking lens body and stone taking device

Info

Publication number: CN215425066U
Application number: CN202122051890.7U
Authority: CN
Inventors: 韩沁驰; 贾彭举
Original assignee: Suzhou Keqin Micro Vision Medical Equipment Co ltd
Current assignee: Suzhou Keqin Micro Vision Medical Equipment Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-01-07
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses a calculus removing mirror body and a calculus removing device, and belongs to the technical field of ureter calculus removing equipment; the utility model relates to a calculus removing endoscope body of a calculus removing device, which comprises an endoscope sheath, a water inlet channel and a calculus removing channel, wherein the water inlet channel and the calculus removing channel are both arranged in the endoscope sheath; one end of the calculus removing lens body is a lens body insertion end; the lens body insertion end is provided with a camera, a light source, a water outlet of a water inlet channel and an inlet of a stone discharge channel; the utility model discloses a lithotomy tube, including lithotomy tube, scope sheath, pressure sensor, stone tube, curved deformation, the lithotomy tube is for arranging the stone tube, the lithotomy tube is including the body, for separable setting between the body of lithotomy tube and the scope sheath, can be provided with the pressure sensor on the scope body inserts and serves, through setting up the lithotomy tube alone to arrange the stone tube, makes to be separable setting between its and the scope sheath for arrange the stone tube and can carry out the stone alone, avoid leading to the deformation of arranging the stone tube because the curved deformation of scope sheath, and then effectively avoid arranging the jam of stone tube.

Description

Stone taking lens body and stone taking device

Technical Field

The utility model relates to the technical field of ureter calculus removing equipment, in particular to a calculus removing mirror body and a calculus removing device.

Background

Ureteral calculus is a common urological disease at present, generally needs to be treated by a calculus breaking operation, and for calculus at the middle and lower segments of a ureter, ureteroscopy is a better treatment means, and a thin lens with the diameter of about 3mm is inserted into the ureter through a urethra and a bladder to break up the ureteral calculus or kidney calculus and take the ureteral calculus or the kidney calculus out. The natural urinary system cavity of a human body is utilized, no incision is made on the body, the method is a pure urinary surgery endoscopic minimally invasive surgery, and holmium laser lithotripsy is the best in the existing ureteroscopy lithotripsy.

In the process of ureteroscope lithotripsy, because the working channel of the soft lens is continuously perfused, the system is relatively closed in the operation process, and the natural drainage channel in the gap of the lens sheath is tortuous and long, when the perfusion is improper or the drainage is not smooth, the pressure (RPP) in the renal pelvis is very easy to rise, when the RPP is more than or equal to 30mmHg, bacteria or toxin in urine and perfusate reversely flow into the blood through the renal pelvis vein and lymphatic vessels, or externally seep to the periphery, not only can cause postoperative fever and spread of infection, but also can possibly cause the occurrence of urogenic sepsis or septic shock, and the longer the duration of the high pressure in the renal pelvis is, the higher the risk of urogenic sepsis is caused.

The diameter of stone fragments formed after holmium laser stone crushing comprises 1.5mm-3.0mm, the existing stone discharging channel in the gap of the sheath can not discharge the larger crushed stone, the crushed stone needs to be grabbed by a stone sheathing basket and then to be withdrawn from the body together with a soft lens, the soft lens needs to be inserted into the renal pelvis part along the ureter guide-in sheath again, the repeated stone sheathing consumes long time and is not thorough, and the damage to the tissues of the urethra and the ureter of a human body is increased. After laser lithotripsy, the lithotripsy needs to flow back to the leading-in sheath tip of the renal pelvis mouth from the focus and be discharged out of the body, and the lithotripsy is very easy to sink to the lower renal calyx in the process and can not be completely discharged, so that most patients need to automatically discharge the lithotripsy after the operation.

The external diameter of a conventional ureter soft lens is 3.1mm, the internal diameter of a commonly-used introducing sheath is 3.3-4.3 mm, the maximum distance of a lens sheath gap is 1.2mm, the gap between the ureter soft lens and the introducing sheath is commonly used for removing calculus at present, but in the actual operation process, due to the bending of a lens body, the gap is far smaller than 1.2mm, and due to the long and narrow water outlet channel, local blockage is easy to occur in the calculus removing process, and calculus fragments cannot be discharged.

In order to solve the technical problems, through retrieval, a patent with an authorization publication number of CN211243580U discloses a soft stone taking lens, which comprises an operating handle, a soft lens body and a negative pressure stone suction assembly, wherein the front end of the soft lens body is connected with a snake bone pipe, the front end of the snake bone pipe is connected with a hard tubular tip part, the inner wall of the tip part is provided with a bulge, a stone discharge hole is formed between the inner wall of the tip part and the surface of the bulge, the negative pressure stone suction assembly is communicated with the rear end of a stone discharge channel, and the stone discharge hole is formed between the inner wall and the surface of the bulge to discharge broken stones.

However, in the above scheme, the stone removing holes are formed between the inner wall of the soft lens body and the arranged convex surface for stone removal, but in the actual use process, on one hand, the bending of the soft lens body can easily cause the local narrowing of the stone removing holes, and further cause unsmooth stone removal, and in addition, the cross section of the stone removing holes formed by the soft lens body is irregular, and the irregular stone removing channels are easily blocked. Therefore, the existing ureter soft lens needs to solve the problem that the calculus removing channel is easy to block.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a calculus removing lens body and a calculus removing device aiming at the technical problem of unsmooth calculus removing of a soft ureteroscope in the prior art, wherein a calculus removing channel in a lens sheath is set as a calculus removing pipe and is reasonably arranged, so that the technical problem of unsmooth calculus removing of the soft ureteroscope in the prior art is favorably solved.

In order to achieve the purpose, the technical scheme provided by the utility model is as follows:

the utility model relates to a calculus removing endoscope body which comprises an endoscope sheath, a water inlet channel and a calculus removing channel, wherein the water inlet channel and the calculus removing channel are arranged in the endoscope sheath; one end of the calculus removing lens body is a lens body insertion end; the lens body insertion end is provided with a camera, a light source, a water outlet of a water inlet channel and an inlet of a stone discharge channel; arrange the stone passageway and be arranged the stone pipe for, arrange the stone pipe including the body, be separable setting between the body of arranging the stone pipe and the mirror sheath, through arranging the stone passageway and set up to arrange the stone pipe alone, make and be separable setting between the mirror sheath for arrange the stone pipe and can arrange the stone alone, avoid leading to arranging the deformation of stone pipe because the bending deformation of mirror sheath, and then effectively avoid arranging the jam of stone pipe.

Preferably, the cross section of the stone discharging channel is circular, the stone discharging pipe is arranged by combining the stone discharging channel, the circular cross section enables the stone discharging pipe to have better strength, and meanwhile, the stone discharging pipe cannot generate cross section deformation in a properly bending range to cause stone discharging blockage.

Preferably, a bending part is arranged at the position of the calculus removing lens body close to the insertion end of the lens body, and the calculus removing lens body can be bent at the bending part.

Preferably, a stone discharging bending part is arranged on the stone discharging pipe in the endoscope sheath at the stone taking endoscope body of the bending part, and the stone discharging pipe can be bent at the stone discharging bending part.

Preferably, be provided with crooked concave part and crooked convex part on the stone discharging pipe body lateral wall of stone discharging bending portion, crooked concave part and crooked convex part set up along stone discharging pipe length direction in turn, the setting of crooked concave part and crooked convex part can increase stone discharging pipe body compliance and the crooked extending ability of stone discharging bending portion, better satisfying the bending requirement when difficult buckling.

Preferably, the inserting end of the endoscope body is also provided with a pressure measuring sensor, and the RPP can be monitored in the operation process through the arrangement of the pressure measuring sensor, so that the formation of high pressure in the renal pelvis is avoided.

Preferably, insert the department at the mirror body, the entry of arranging the stone passageway includes the inclined mouth of arranging the stone, the incline direction of the inclined mouth of arranging the stone is for keeping away from the mirror body and insert the direction of end central point position, through the setting of the inclined mouth of arranging the stone for arrange the stone passageway and discharge the rubble of the great within range of entry.

Preferably, inhalant canal is the inlet tube, the inlet tube includes the body, for separable setting between the body of inlet tube and the mirror sheath, inhalant canal also sets up to the inlet tube, also can make inlet tube self avoid the influence of deformation when the mirror sheath is crooked.

Preferably, the light source includes a first light source and a second light source, and the first light source and the second light source are respectively disposed at two sides of the camera.

The utility model relates to a calculus removing device which comprises a calculus removing lens body, a control unit, a water supply unit, an imaging unit and a negative pressure unit, wherein the calculus removing lens body is provided with a water inlet and a water outlet; the calculus removing lens body is the calculus removing lens body;

the imaging unit comprises an imaging device and a light source power supply; the imaging equipment is electrically connected with the camera at the insertion end of the endoscope body, and the light source power supply is electrically connected with the light source at the insertion end of the endoscope body;

the lithotripsy laser source is connected to the endoscope body insertion end of the lithotripsy endoscope body through an optical fiber;

the water supply unit is connected with the water inlet channel through a pipeline and is used for supplying water to the water inlet channel;

the negative pressure unit is connected with the stone discharge channel through a pipeline and used for providing negative pressure for the stone discharge channel.

The control unit is provided with a control switch for controlling the switch of the water supply unit and the negative pressure unit;

preferably, the stone removing device further comprises an operating handle, wherein a double-channel port is arranged on the operating handle, and a stone removing pipe and a water inlet pipe are respectively arranged at the double-channel port.

Drawings

FIG. 1 is an enlarged schematic view of a lithotomy scope body structure and a scope body insertion end in the lithotomy device of the present invention;

FIG. 2 is a schematic view of an insertion end face of a stone-picking lens body in a stone-picking apparatus according to the present invention;

FIG. 3 is a cross-sectional view A-A of the stone mirror body of FIG. 2;

FIG. 4 is a schematic structural view of a curved portion of a lithotomy passage of a lithotomy scope body in the lithotomy device of the present invention;

fig. 5 is a schematic view of the overall structure of a calculus removing device according to the present invention.

The reference numerals in the schematic drawings illustrate:

100. a stone taking device; 101. taking a stone lens body; 102. a lens body insertion end; 103. a bending section;

111. a sheath;

121. a stone discharge passage; 121-1, a stone-discharging bending part; 121-2, curved recesses; 121-3, a curved convex part; 127. an inclined port for discharging stones;

122. a water inlet channel; 123. a pressure sensor; 124. a camera; 125. a first light source; 126. a second light source;

131. a control unit; 132. a water supply unit; 133. an imaging unit; 134. a negative pressure unit; 135. a handle is operated.

Detailed Description

For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the utility model, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the utility model without affecting the effect and the achievable purpose of the utility model. Meanwhile, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description only, and are not used to limit the implementable scope, and the relative relationship changes or adjustments may be considered to be within the implementable scope of the present invention without substantial technical changes; in addition, the embodiments of the present invention are not independent of each other, but may be combined.

As shown in fig. 5, a calculus removing device of the present embodiment includes a calculus removing mirror body 101, a control unit 131, a water supply unit 132, an imaging unit 133, and a negative pressure unit 134; the imaging unit 133 includes an imaging device and a light source power supply; the imaging device is electrically connected with the camera 124 of the lens insertion end 102 on the calculus removing lens body 101, and the light source power supply is electrically connected with the light source of the lens insertion end 102 on the calculus removing lens body 101; through the arrangement of the negative pressure unit 134, different from the original natural drainage, the increased negative pressure function has the suction effect, and the calculus can be more thoroughly removed.

The lithotripsy laser device further comprises a lithotripsy laser source, wherein the lithotripsy laser source is connected to the lithotripsy mirror body 101 through an optical fiber; the optical fibers may be connected together to the scope insertion end 102 by a water supply tube of a water supply unit 132.

The lithotomy scope body 101 is shown in fig. 1, and comprises a sheath 111, a water inlet channel 122 and a calculus removing channel 121, wherein the water inlet channel 122 and the calculus removing channel 121 are both arranged in the sheath 111; one end of the calculus removing lens body 101 is a lens body insertion end 102; the mirror body inserts and is provided with camera 124, light source, inhalant canal 122's outlet and the entry of stone discharge passageway 121 on the end 102, in this embodiment, rubble laser source passes through optic fibre joinable to inhalant canal 122's outlet, and in addition, rubble laser in this embodiment is thulium laser rubble, and its rubble effect is better.

In the using process, the endoscope inserting end 102 of the endoscope body 101 is inserted to the position of the renal pelvis along the urethra of a human body, the camera 124 and the light source are arranged on the endoscope inserting end 102, under the assistance of the light source and the camera 124, an operator can find an affected part, the affected part in the position of the renal pelvis can be crushed by the crushed stone laser source, the water outlet of the water inlet channel 122 is filled with 0.9% NaCl injection, the injection flows through the renal calyx of the renal pelvis, and the crushed stones are together discharged from the stone discharge channel 121.

In this embodiment, the light source includes a first light source 125 and a second light source 126, and the first light source 125 and the second light source 126 are respectively disposed at two sides of the camera 124, which can achieve a clearer view. In addition, the endoscope insertion end 102 is also provided with a pressure sensor 123, and by the arrangement of the pressure sensor 123, the RPP can be monitored in the operation process, so that the formation of high pressure in the renal pelvis is avoided; in this embodiment, the pressure sensor 123 is connected to the control unit 131, and after the pressure sensor 123 transmits data information to the control unit 131, the control unit 131 can regulate and control the water inlet speed and the negative pressure according to the real-time internal pressure of the kidney measured by the pressure sensor 123, so that the internal pressure of the kidney is stabilized within a safe range.

In this embodiment, the lithotomy channel 121 is a lithotomy tube, the lithotomy tube includes a tube body, the tube body of the lithotomy tube and the endoscope sheath 111 are separately disposed, and the endoscope sheath 111 is an outermost portion of the lithotomy endoscope body 101, and can be inserted into the renal pelvis along the urethra of the human body; this embodiment makes it and mirror sheath 111 between be separable setting through setting up the stone removal passageway 121 to the stone removal pipe alone for stone removal pipe can carry out the stone removal alone, avoids leading to the deformation of stone removal pipe because the bending deformation of mirror sheath 111, and then effectively avoids the jam of stone removal pipe.

In addition, the cross section of the stone discharging channel 121 is circular, and the stone discharging pipe is arranged by combining the stone discharging channel 121, so that the stone discharging pipe has better strength due to the circular cross section, and meanwhile, the stone discharging pipe cannot generate cross section deformation in a properly bent range to cause stone discharging blockage.

At the insertion end 102 of the endoscope body, the entrance of the stone discharge channel 121 comprises a stone discharge bevel opening 127, the bevel direction of the stone discharge bevel opening 127 is the direction far away from the central position of the insertion end 102 of the endoscope body, and the stone discharge channel 121 discharges gravels in a larger range of the entrance through the arrangement of the stone discharge bevel opening 127.

In addition, in this embodiment, an operating handle is further included, and the pipeline (i.e. the water inlet pipe) of the water inlet passage 122 and the pipeline (i.e. the stone discharging pipe) of the stone discharging passage 121 are connected with the outside through a double-passage port on the operating handle.

Further, the lithotomy body 101 is provided with a curved portion 103 at a position close to the body insertion end 102, the lithotomy body 101 is bendable at the curved portion 103, and at the same time, a lithotomy tube 121-1 is provided at the lithotomy body 101 at the curved portion 103 on the lithotomy tube 111, and the lithotomy tube is bendable at the lithotomy tube 121-1.

The outer side wall of the body of the stone removing pipe of the stone removing bending part 121-1 is provided with a bending concave part 121-2 and a bending convex part 121-3, the bending concave part 121-2 and the bending convex part 121-3 are alternately arranged along the length direction of the stone removing pipe, and the flexibility and the bending extensibility of the body of the stone removing pipe of the stone removing bending part 121-1 can be improved by the arrangement of the bending concave part 121-2 and the bending convex part 121-3, so that the bending requirement is better met while the bending is not easy to occur.

In the calculus removing device of the present embodiment, the imaging unit 133 includes an imaging device and a light source power supply; the imaging device is electrically connected with the camera 124 of the endoscope body insertion end 102, and the light source power supply is electrically connected with the light source of the endoscope body insertion end 102;

the lithotripsy laser device further comprises a lithotripsy laser source which is connected to the endoscope body insertion end 102 of the lithotripsy endoscope body 101 through an optical fiber;

the water supply unit 132 is connected to the water inlet passage 122 through a pipe, and is used for supplying water to the water inlet passage 122;

the negative pressure unit 134 is connected with the stone discharge channel 121 through a pipeline and is used for providing negative pressure for the stone discharge channel 121;

the water supply unit 132 and the negative pressure unit 134 are respectively connected with the control unit 131, a control switch is arranged on the control unit 131 and used for controlling the on-off of the water supply unit 132 and the negative pressure unit 134, the negative pressure unit 134 is used for providing negative pressure to generate suction, the specific form can be a negative pressure pump, in addition, the control unit 131 can change the size of the negative pressure by adjusting the negative pressure pump and can also control the water suction speed.

In addition, at least 2 pulling wires, 2 pulling wires in this embodiment, are uniformly arranged along the circumferential direction of the cross section of the curved portion 103 of the lithotomy body 101, and an operator pulls a specific pulling wire to bend the curved portion 103 of the lithotomy body 101 in the corresponding direction.

The utility model has been described in detail hereinabove with reference to specific exemplary embodiments thereof. It will, however, be understood that various modifications and changes may be made without departing from the scope of the utility model as defined in the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to be illustrative of the state of the art as developed and the meaning of the present technology and is not intended to limit the scope of the utility model or the application and field of application of the utility model.

More specifically, although exemplary embodiments of the utility model have been described herein, the utility model is not limited to these embodiments, but includes any and all embodiments modified, omitted, combined, e.g., between various embodiments, adapted and/or substituted, as would be recognized by those skilled in the art from the foregoing detailed description. The limitations in the claims are to be interpreted broadly based the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the utility model should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.

Claims

1. The lithotomy scope body is characterized by comprising a sheath (111), a water inlet channel (122) and a lithotomy channel (121), wherein the water inlet channel (122) and the lithotomy channel (121) are both arranged in the sheath (111); one end of the calculus removing lens body (101) is a lens body insertion end (102); the endoscope body insertion end (102) is provided with a camera (124), a light source, a water outlet of a water inlet channel (122) and an inlet of a calculus removing channel (121); the stone removing channel (121) is a stone removing pipe, the stone removing pipe comprises a pipe body, and the pipe body of the stone removing pipe and the endoscope sheath (111) are arranged in a separable mode.

2. The lithotomy mirror body according to claim 1, wherein the cross-section of the stone discharge channel (121) is circular in shape.

3. The lithotomy mirror body according to claim 1, characterized in that a bending portion (103) is provided at a position of the lithotomy mirror body (101) close to the mirror body insertion end (102), the lithotomy mirror body (101) being bendable at the bending portion (103).

4. The lithotomy scope body according to claim 3, characterized in that at the lithotomy scope body (101) of the curve (103), a lithotomy curve (121-1) is provided on the lithotomy tube in the sheath (111), said lithotomy tube being bendable at the lithotomy curve (121-1).

5. The lithotomy scope body according to claim 4, wherein the outer side wall of the body of the lithotomy tube of the lithotomy curved part (121-1) is provided with curved concave parts (121-2) and curved convex parts (121-3), and the curved concave parts (121-2) and the curved convex parts (121-3) are alternately arranged along the length direction of the lithotomy tube.

6. The lithotomy lens body according to claim 1, characterized in that a load cell (123) is also arranged on the lens body insertion end (102).

7. The lithotomy lens body according to claim 1, wherein at the lens body insertion end (102), the entrance of the lithotomy channel (121) comprises a lithotomy bevel (127), the tilt direction of the lithotomy bevel (127) being a direction away from the central position of the lens body insertion end (102).

8. The lithotomy scope body according to claim 1, wherein the water inlet channel (122) is a water inlet tube, the water inlet tube comprises a tube body, and the tube body of the water inlet tube is detachably arranged with the scope sheath (111).

9. The lithotomy mirror body according to any one of claims 1-8, wherein the light source comprises a first light source (125) and a second light source (126), and the first light source (125) and the second light source (126) are respectively arranged on two sides of the camera (124).

10. The stone extractor is characterized by comprising a stone extracting mirror body (101), a control unit (131), a water supply unit (132) and a negative pressure unit (134); the calculus removing lens body (101) is the calculus removing lens body (101) according to any one of claims 1-9;

the water supply unit (132) is connected with the water inlet channel (122) through a pipeline and is used for supplying water to the water inlet channel (122);

the negative pressure unit (134) is connected with the calculus removing channel (121) through a pipeline and used for providing negative pressure for the calculus removing channel (121);

the control unit (131) is provided with a control switch for controlling the water supply unit (132) and the negative pressure unit (134).

11. The stone removing device as claimed in claim 10, further comprising an operating handle (135), wherein the operating handle (135) is provided with a dual-channel port (136), and the dual-channel port (136) is respectively provided with a stone discharging pipe and a water inlet pipe.