CN110811492A

CN110811492A - Soft lens leading-in device and using method thereof

Info

Publication number: CN110811492A
Application number: CN201911270216.9A
Authority: CN
Inventors: 林敏�; 杨长胜; 王沐
Original assignee: SCANMED (CHINA) Ltd
Current assignee: SCANMED (CHINA) Ltd; Simai Co Ltd
Priority date: 2019-04-29
Filing date: 2019-12-11
Publication date: 2020-02-21
Also published as: CN210541480U; CN210749127U; CN211985342U; CN210643982U; CN210541479U; CN110811525A; CN210749149U; CN210541478U; CN213309607U; CN210727707U; CN210749119U; CN211985382U; CN210541477U; CN111839423A; CN212261315U

Abstract

The invention discloses a soft lens leading-in device and a using method thereof, wherein the soft lens leading-in device is a hard leading-in sheath component and comprises a leading-in sheath, the leading-in sheath is used for carrying a soft lens, so that the soft lens has the function of the hard lens and is inserted into a part needing to be medically operated in a human body or is close to the part from a human body inlet; the guiding sheath is a strip-shaped tube body matched with the soft lens, and the soft lens is inserted into the guiding sheath until the head end of the soft lens is flush with the head end of the guiding sheath or slightly protrudes out of the head end of the guiding sheath. The invention can ensure that the soft lens is accurately inserted into the organ to be inspected and treated, and the soft lens is convenient to use, reduces the injury of a patient and lowers the operation cost.

Description

Soft lens leading-in device and using method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a soft lens introducing device and a using method thereof.

Background

With the popularization of minimally invasive surgery, various flexible mirrors with bendable heads are used in various surgeries, so that the pain of patients is reduced. Most of the soft lenses can be inserted to the corresponding examination or operation position in one step, but the soft ureteroscope, the soft bladder speculum, the soft renal pelvis speculum, the soft intestinal tract speculum, the soft digestive system speculum and the like still have the problem of difficult insertion to the preset position in the body. For example, since the soft ureteroscope, the soft bladder speculum, the soft renal pelvis speculum and the like are required to be inserted from the urethral orifice of a human body, and the soft ureteroscope, the soft bladder speculum and the soft renal pelvis speculum must be placed at a preset position in the body through a plurality of steps of operation due to the stenosis and sensitivity of the urethra, so that the operation steps of a doctor are increased, the working efficiency is low, the operation cost is high, the operation time is long, and the body and mind of a patient are painful.

Specifically, for example, the conventional uretero-pyeloscope requires repeated operations to place the soft scope in place from the urethra of the human body: the method comprises the steps of firstly inserting a ureteroscope with a lens into a urethra of a human body to pass through a channel to find a preset position, secondly inserting a zebra guide wire into the position of a renal pelvis through a working channel of the ureteroscope (the preset position can be observed through a display screen), thirdly withdrawing the ureteroscope while the zebra guide wire is kept at the position of the renal pelvis until the ureteroscope is completely withdrawn, fourthly advancing a ureter introducing sheath assembly with a fine round head to the position of the renal pelvis along the zebra guide wire (no lens monitoring exists at the time, the blind insertion is realized), fifthly pulling out a guide sheath in the ureter introducing sheath assembly, simultaneously pulling out the zebra guide wire, keeping the ureter introducing sheath in the human body, and sixthly inserting the flexible endoscope into the position of the renal pelvis along the ureter introducing sheath. Therefore, the operation steps of doctors and the damage degree of the body of a patient are greatly increased, the operation time is long, the operation is complex, the working efficiency is low, the stability and the reliability of the operation are low, the number of surgical instruments is large, and the operation cost is high.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a soft lens guiding device, which reduces the operation steps of the operation, is convenient to use, improves the working efficiency, reduces the injury of a patient and reduces the operation cost.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a soft lens leading-in device is a hard leading-in sheath component and comprises a leading-in sheath, wherein the leading-in sheath is used for carrying a soft lens, so that the soft lens has the function of a hard lens and is inserted into a part needing medical operation in a human body from a human body inlet or is close to the part; the guiding sheath is a strip-shaped tube body matched with the soft lens, and the soft lens is inserted into the guiding sheath until the head end of the soft lens is flush with the head end of the guiding sheath or slightly protrudes out of the head end of the guiding sheath. Optionally, the human body inlet is a natural opening or an opening formed by an operation.

Preferably, the rigid introducer sheath assembly comprises the introducer sheath, an introducer sheath main body and a fixing device for fixing the soft endoscope which are connected in sequence; the guide sheath main body is used for guiding the soft endoscope to be inserted into the guide sheath until the head end of the soft endoscope is flush with the head end of the guide sheath or slightly protrudes out of the head end of the guide sheath, and the fixing device is used for detachably mounting and fixing the tail end of the soft endoscope.

Preferably, the outer diameter of the introduction sheath is 2 to 8 mm.

Preferably, the fixing device is a fixing bracket.

Preferably, a sheath channel is arranged in one end, close to the introducing sheath, of the sheath main body, a slot for the soft endoscope to pass through is arranged in the other end of the sheath main body, the slot is communicated with the sheath channel, and the sheath channel is communicated with the introducing sheath.

Preferably, a sheath sealing member for sealing the soft lens and the sheath channel is arranged on the sheath channel at a position close to the slotted groove, and the sheath sealing member is in interference fit with the sheath channel.

Preferably, the sheath main body is further provided with a water outlet channel, and the water outlet channel is communicated with the sheath channel.

Preferably, the end part of the sheath main body, which is close to the open groove, is provided with a fixing rib, the corresponding end part of the fixing support is provided with a fixing buckle matched with the fixing rib, and the fixing support is detachably connected with the sheath main body through the buckling of the fixing rib and the fixing buckle.

Preferably, a sheath handle is provided on a side surface of the sheath body.

Preferably, the head end of the soft lens is a lens assembly which can rotate by a flexible shell, and the end of the lens assembly is flush with or slightly protrudes out of the head end of the introducing sheath.

The invention also provides a using method of the soft lens leading-in device, which comprises the following steps:

1) installing the soft endoscope into an introducer sheath of the rigid introducer sheath assembly;

2) opening the perfusate;

3) inserting the introducing sheath carrying the soft lens from the human body inlet to a part needing medical operation in the human body or to a part close to the part;

4) when the introduction sheath with the soft endoscope cannot reach a part needing a medical operation in a human body, the advancing of the introduction sheath is stopped when the introduction sheath approaches the part, the head end of the soft endoscope is pushed out of the head end of the introduction sheath, and the introduction sheath is continuously advanced along the introduction sheath until the part needing the medical operation in the human body.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a hard leading-in sheath component used for carrying a soft lens and entering a human body (such as lung or abdominal cavity organs), wherein the soft lens has the hardness and function of the hard lens and is smoothly pushed to an organ inlet or an organ to be diagnosed by fixing the soft lens on the hard leading-in sheath component; meanwhile, real-time observation is carried out by utilizing lens assemblies such as a camera at the front end of the soft lens, so that the insertion process is carried out under endoscopy, and the accuracy and the reliability of operation can be further ensured; in the whole process, the operation steps of a doctor are only one step, surgical instruments do not need to be replaced, the operation is simple and rapid, the working efficiency is improved, the using equipment is few, the disinfection steps are few, the loss is few, the operation cost is greatly reduced, the operation time is shortened, and therefore the damage degree of the body of a patient and the probability of cross infection are reduced.

Drawings

Fig. 1 is a schematic diagram of a structure for separating a soft lens introducing device from a soft lens according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a soft lens introducing device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a soft lens according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a lens holder and a soft lens body according to an embodiment of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic structural diagram of a lens holder;

FIG. 7 is an exploded view of a rigid introducer sheath assembly according to an embodiment of the invention;

FIG. 8 is a cross-sectional view of a rigid introducer sheath assembly according to an embodiment of the invention;

fig. 9 is a schematic structural view of a sheath body according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the present embodiment provides a soft endoscope introduction device which is a hard introduction sheath assembly 20, the soft endoscope of the present embodiment is a soft ureteroscope, and the hard introduction sheath assembly 20 is used for carrying the soft ureteroscope 10 to reach the glenoid cavity.

Specifically, as shown in fig. 3, the ureteral soft lens 10 includes a soft lens body 100 and a soft lens handle 110 connected to the soft lens body 100, and the soft lens body 100 includes a flexible tube 102, a bending member 120, and a lens holder 130, which are sequentially connected.

As shown in fig. 4 and 5, the ureteral soft lens 10 has the following structure: a working channel 101 matched with the soft lens main body 100 is arranged in the soft lens main body 100; one end of the soft lens main body 100, namely one end of the hose 102, penetrates through the soft lens handle 110 and is fixedly connected with the soft lens handle 110; the working channel 101 is inserted into the flexible tube 102 from the free end of the soft lens handle 110, passes through the flexible tube 102, and then passes through the bending member 120 to extend into the lens holder 130. As shown in fig. 6, the lens holder 130 is internally provided with a through hole 131 for communicating with the working channel 101 so as to input or output the perfusion fluid. A camera channel 132 is arranged in front of the lens holder 130 at a position corresponding to the lower part of the through hole 131, and a camera device is arranged in the camera channel 132 and used for monitoring the operation process in real time. An illumination channel 133 is provided in front of the lens holder 130 at a position corresponding to one side of the through hole 131, an illumination device is provided in the illumination channel 133, the illumination device provides illumination through a light guide beam, and two blind holes 134 for mounting a steering wire for engaging with the bending member 120 are provided at the other side opposite to the illumination channel 133.

As shown in fig. 7 and 8, the rigid introducer sheath assembly 20 mainly includes an introducer sheath 200, an introducer sheath main body 21, and a fixing bracket 220 for fixing the soft endoscope handle 110, which are connected in this order. The guiding sheath 200 is a long tube, the structure of the guiding sheath is matched with that of the straightened soft lens main body 100, the guiding sheath is made of metal or plastic, the rigidity is strong, the guiding sheath has certain elasticity, the guiding sheath can elastically deform under the action of external force, and one end of the guiding sheath 200 is fixedly arranged in the guiding sheath main body 210. When the flexible ureteroscope 10 is used in combination with the rigid introducer sheath assembly 20, the flexible scope body 100 is inserted into the introducer sheath 200 through the introducer sheath body 210 with the head end of the flexible scope body 100 flush or nearly flush with the head end of the introducer sheath 200, and the flexible scope handle 110 is detachably disposed on the fixed bracket 220. The meaning of near flush is: the head end of the soft lens main body 100 can protrude 0-3mm from the head of the guiding sheath 200 to realize visual leveling, while the head end of the guiding sheath 200 does not protrude from the head end of the soft lens main body 100 to avoid the damage of the urethra and the inner wall of the ureter.

Specifically, a sheath channel 211 is provided in one end of the sheath body 210 close to the introducer sheath 200, and a slot 212 for the soft lens body 100 to pass through is provided in the other end, and the slot 212 is communicated with the sheath channel 211. The end of the introducing sheath 200 is hermetically inserted into the sheath passage 211, and the inner diameter of one end of the sheath passage 211 far away from the introducing sheath 200 is gradually increased towards the groove 212. The position of the sheath channel 211 close to the slot 212 is provided with a sheath sealing member 213, the sheath sealing member 213 is used for sealing the soft lens main body 100 and the sheath channel 211, and the sheath sealing member 213 is in interference fit with the sheath channel 211, so that the leakage of the perfusion fluid can be effectively prevented.

Meanwhile, referring to fig. 9, a water outlet channel 214 is arranged at a position of the sheath main body 210 corresponding to the middle of the sheath channel 211, and the water outlet channel 214 is communicated with the sheath channel 211 and used for leading out a perfusion fluid, thereby facilitating the operation of a doctor and being beneficial to keeping the environment of an operating room clean. The sheath handle 215 is arranged at the position of the sheath main body 210 corresponding to the upper part of the sheath channel 211, which is convenient for a doctor to grasp and simultaneously does not change the original use habit. The end of the sheath main body 210 close to the slot 212 is provided with a fixing rib 216, correspondingly, the end of the fixing bracket 220 is provided with a fixing buckle 221 matched with the fixing rib 216, and the fixing bracket 220 is detachably connected with the sheath main body 210 through the buckling of the fixing rib 216 and the fixing buckle 221. The fixing bracket 220 is provided with a soft lens buckle 222, and the soft lens handle 110 is clamped on the soft lens buckle 222, so that the soft ureteroscope 10 can be well fixed and positioned. Referring to fig. 1 and fig. 2, the soft endoscope body 100 is inserted into the introducing sheath 200 through the slot 212 and the sheath channel 211, so that the head of the soft endoscope body 100 is flush with the head of the introducing sheath 200, and the soft endoscope handle 110 is clamped on the soft endoscope buckle 222 of the fixing bracket 220, so that the soft ureteroscope 10 is fixed on the rigid introducing sheath assembly 20.

The bending member 120 has at least one degree of freedom of oscillation so that its bending direction can be adjusted by the steering wire to facilitate accurate access of the entrance of the working channel 101 to the renal pelvis.

After the ureter soft endoscope 10 and the rigid guide sheath assembly 20 are fixed, the using method specifically comprises the following steps:

1) installing the ureter soft lens into the rigid guide-in sheath component 20, opening the perfusion liquid, and starting the camera device and the lighting device to enable a display screen connected with the ureter soft lens 10 to display a real-time image of the front end of the lens bracket 130 in real time;

2) the introducing sheath 200 of the rigid introducing sheath assembly 20 is placed transurethrally, and the soft lens body 100 is placed into the body simultaneously with the introducing sheath 200: a doctor only needs to hold the guide sheath handle 215 to insert the guide sheath 200 and the soft lens main body 100 into the patient, and in the insertion process, the condition of the whole insertion process is observed through the display screen, and the insertion direction and speed are adjusted in time;

3) when the soft ureteroscope 10 enters the ureter to the mouth of the renal pelvis through the urethra, the rigid guide sheath component 20 stops advancing and is pre-fixed, the soft ureteroscope handle 110 on the fixed bracket 220 is taken down, and the soft ureteroscope main body 100 is continuously advanced along the guide sheath to enter the renal pelvis, so that the examination or the operation can be carried out.

After use, the ureteral soft endoscope 10 is firstly drawn out of the human body through the channel formed by the rigid introducer sheath assembly 20, and then the introducer sheath 200 is pulled out.

Therefore, the soft ureteroscope 10 is fixed on the rigid guide sheath component 20, so that the soft ureteroscope 10 can be carried on the rigid guide sheath component 20, the hard ureteroscope has the characteristic of a hard ureteroscope, and compared with the existing soft ureteroscope embedding method, the soft ureteroscope can accurately reach the position of the renal pelvis by only one-step operation, is simple and quick to operate, greatly improves the working efficiency, does not need zebra guide wires and other equipment, has few used equipment, effectively reduces the operation cost and operation time, and is beneficial to reducing the injury of a patient. Meanwhile, since the camera device and the lighting device are always disposed at the front end of the lens holder 130, the whole insertion process and the operation process are made visible.

The principle and the structure of the soft lens introducing device can also be applied to other endoscopes, such as cystoscopes, enteroscopes or hysteroscopes, and the application range is wide.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A soft lens introducer device, comprising: the endoscope is a rigid introduction sheath assembly and comprises an introduction sheath, wherein the introduction sheath is used for carrying a soft endoscope, so that the soft endoscope has the function of a rigid endoscope and is inserted into a part needing medical operation in a human body from a human body inlet or is close to the part; the guiding sheath is a strip-shaped tube body matched with the soft lens, and the soft lens is inserted into the guiding sheath until the head end of the soft lens is flush with the head end of the guiding sheath or slightly protrudes out of the head end of the guiding sheath.

2. The soft lens introducer device according to claim 1, wherein: the human body inlet is a natural opening or an opening formed by an operation.

3. The soft lens introducer device according to claim 1, wherein: the external diameter of the leading-in sheath is 2-8 mm.

4. The soft lens introducer device according to claim 1, wherein: the rigid guide sheath component comprises a guide sheath, a guide sheath main body and a fixing device for fixing the soft endoscope which are sequentially connected; the guide sheath main body is used for guiding the soft endoscope to be inserted into the guide sheath until the head end of the soft endoscope is flush with the head end of the guide sheath or slightly protrudes out of the head end of the guide sheath, and the fixing device is used for detachably mounting and fixing the tail end of the soft endoscope.

5. The soft lens introduction apparatus according to claim 4, wherein: the fixing device is a fixing bracket.

6. The soft lens introduction apparatus according to claim 4, wherein: a guide sheath channel is arranged in one end, close to the guide sheath, of the guide sheath main body, a notch for the soft lens to penetrate through is formed in the other end of the guide sheath main body, the notch is communicated with the guide sheath channel, and the guide sheath channel is communicated with the guide sheath.

7. The soft lens introduction apparatus according to claim 6, wherein: and a guide sheath sealing element used for sealing the soft lens and the guide sheath channel is arranged on the position, close to the slotted groove, of the guide sheath channel, and the guide sheath sealing element is in interference fit with the guide sheath channel.

8. The soft lens introduction apparatus according to claim 6, wherein: the guide sheath main body is further provided with a water outlet channel, and the water outlet channel is communicated with the guide sheath channel.

9. The soft lens introduction apparatus according to claim 7, wherein: the sheath main part is close to be provided with fixed muscle on the grooved tip, be provided with on the corresponding tip of fixed bolster with fixed muscle assorted fixed knot, the fixed bolster pass through the lock of fixed muscle and fixed knot with the sheath main part can be dismantled and be connected.

10. The soft lens introduction apparatus according to claim 3, wherein: and a guide sheath handle is arranged on the side surface of the guide sheath main body.

11. The soft lens introducer device according to claim 1, wherein: the head end of the soft lens is provided with a lens component which can rotate by a bendable shell, and the end part of the lens component is flush with the head end of the guide sheath or slightly protrudes out of the head end of the guide sheath.

12. A method of using the soft lens introducer device of any of claims 1 to 11, wherein:

2) opening the perfusate;