Tube sheath holding mirror separating device externally attached to ureteroscope sheathing canal

Abstract

The utility model discloses a tube sheath holding mirror separating device attached to the outside of a ureteroscope sheath tube. The tube sheath holding mirror separating device comprises a bag tube and an injection tube. The balloon tube is divided into a balloon tube inner layer and a balloon tube outer layer, a closed cavity is formed, and the balloon tube wraps and is attached to the ureteroscope sheathing canal; the injection tube comprises a water injection tube and a liquid injection tube, the water injection tube extends into the cavity of the balloon tube and can inject gas into the balloon tube, and the liquid injection tube extends into the space between the inner layer of the balloon tube and the outer wall of the sheath tube and can inject normal saline to form a gap between the balloon tube and the sheath tube. According to the ureteroscope, the bag tube wrapped and adsorbed on the ureteroscope tube sheath is arranged, when the ureteroscope is held, gas can be injected into the bag tube through the injection tube to support the ureteroscope, and normal saline is injected between the bag tube and the tube sheath to separate the bag tube and the tube sheath, so that the ureteroscope can be smoothly separated, and the problems that the ureteroscope is difficult to draw out due to the fact that the ureteroscope is held are solved. The ureter avulsion or fracture is further caused.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a tube sheath mirror-holding detachment device attached to the outside of a ureteroscope sheath tube. Background Art

[0002] Ureteroscopy is a common urological surgery at present. During the surgery, the sheath tube of the ureteroscope needs to be inserted through the urethra, pass through the bladder and the ureter and enter the renal pelvis for examination and treatment. However, during the process of the ureteroscope entering or withdrawing from the ureter, the situation of mirror-holding may occur.

[0003] Clinically, when mirror-holding occurs, the withdrawal technique is often adjusted to try to detach. If it cannot be detached, wait for the ureteral spasm to end or inject drugs to dilate the ureter, and then try to withdraw the mirror. However, the situation of unable to withdraw the mirror still occurs, and finally it can be removed through surgery. In the existing solutions, when mirror-holding occurs, it is easy to cause ureteral avulsion or rupture during the process of trying to withdraw the mirror, and complications are also likely to occur after the operation. Moreover, surgical removal will cause serious damage to the patient's body.

[0004] Therefore, the existing solutions for solving ureteral mirror-holding are likely to cause ureteral avulsion or rupture and are prone to complications after the operation. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a tube sheath mirror-holding detachment device attached to the outside of a ureteroscope sheath tube to solve the technical problems in the prior art that are likely to cause ureteral avulsion or rupture and are prone to complications after the operation.

[0006] To solve the above technical problems, the utility model specifically provides the following technical solutions:

[0007] A tube sheath mirror-holding detachment device attached to the outside of a ureteroscope sheath tube includes:

[0008] A ureteroscope, the ureteroscope has a sheath tube, and one end of the sheath tube is provided with a light guide beam port, an eyepiece, an instrument channel and a flushing liquid inlet and outlet;

[0009] A cyst tube, which is sleeved on the sheath tube and its two ends tighten the outer wall of the sheath tube, and is adsorbed on the outer wall of the sheath tube after vacuum treatment. The cyst tube includes an inner cyst tube layer and an outer cyst tube layer arranged in a nested manner, and the inner cyst tube layer directly wraps the outer wall of the sheath tube;

[0010] An injection tube, the injection tube includes an air injection tube and a liquid injection tube. One end of the air injection tube extends into the space between the inner layer and the outer layer of the capsule tube and is tightly fixed by suction. One end of the liquid injection tube extends into the space between the inner layer of the capsule tube and the sheath tube and is tightly fixed by suction. And the other ends of the air injection tube and the liquid injection tube are respectively provided with an air stop valve and a liquid stop valve to independently open and close the air injection tube and the liquid injection tube;

[0011] When a lens holding occurs and the endoscope needs to be withdrawn, after opening the air injection tube to inject gas between the inner layer and the outer layer of the capsule tube to expand the ureter, open the liquid injection tube to inject physiological saline between the inner layer of the capsule tube and the sheath tube to separate the inner layer of the capsule tube and the sheath tube, so as to facilitate the withdrawal of the sheath tube.

[0012] As a preferred solution of the present invention, the air injection tube and the liquid injection tube penetrate through the side walls of the outer layer and the inner layer of the capsule tube. The two ends of the capsule tube have a smaller diameter so as to be tightened on the sheath tube.

[0013] As a preferred solution of the present invention, rubber rings are provided at both ends of the capsule tube and are tightened and fixed on the sheath tube through the rubber rings. The air injection tube and the liquid injection tube penetrate through the outer wall of the rubber ring far from the end of the sheath tube.

[0014] As a preferred solution of the present invention, the parts of the air injection tube and the liquid injection tube close to the end of the sheath tube are subjected to bevel cutting.

[0015] As a preferred solution of the present invention, one ends of the air injection tube and the liquid injection tube close to the eyepiece of the ureteroscope are fixed by a cable tie and a magic tape.

[0016] As a preferred solution of the present invention, the outer surface of the outer layer of the capsule tube and the outer wall of the sheath tube both have a hydrophilic coating.

[0017] The present invention has the following beneficial effects compared with the prior art:

[0018] By providing a capsule tube wrapped and adsorbed on the sheath of the ureteroscope, when a lens holding occurs, gas can be injected into the capsule tube through the injection tube to expand the ureter, and physiological saline can be injected between the capsule tube and the sheath tube to separate them, so that the ureter can be smoothly detached, solving the problem that it is difficult to withdraw the ureteroscope due to lens holding, and further causing ureteral avulsion or rupture. Description of the Drawings

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are merely exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained by extending the provided drawings.

[0020] Figure 1 FIG. is a schematic structural diagram of a tube sheath mirror-holding detachment device externally attached to a ureteroscope sheath tube provided by an embodiment of the present invention;

[0021] Figure 2 FIG. is a partial schematic structural diagram of a cystic tube with smaller ports tightened at both ends provided by an embodiment of the present invention;

[0022] Figure 3 FIG. is a partial schematic structural diagram of a cystic tube with rubber rings tightened at both ends provided by an embodiment of the present invention;

[0023] Figure 4 FIG. is a partial schematic structural diagram of an injection tube provided by an embodiment of the present invention;

[0024] Figure 5 FIG. is a partial schematic structural diagram of the cross-section of a sheath tube and a cystic tube provided by an embodiment of the present invention.

[0025] The reference numerals in the figure are respectively represented as follows:

[0026] 1 - sheath tube; 2 - cystic tube; 3 - injection tube;

[0027] 21 - inner layer of cystic tube; 22 - outer layer of cystic tube; 23 - rubber ring; 31 - air injection tube; 32 - liquid injection tube; 33 - tie magic tape;

[0028] 311 - air stop valve; 321 - liquid stop valve. Specific embodiments

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] As Figures 1 to 5 shown, the present invention provides a tube sheath mirror-holding detachment device externally attached to a ureteroscope sheath tube, including:

[0031] A rigid ureteroscope, the rigid ureteroscope has a sheath tube 1, and one end of the sheath tube 1 is provided with a light guide beam port, an eyepiece, an instrument channel, and a flushing liquid inlet and outlet;

[0032] The bladder tube 2 is sleeved on the sheath tube 1, and both ends thereof are tightened on the outer wall of the sheath tube 1. After being vacuum-treated, it is adsorbed on the outer wall of the sheath tube 1. The bladder tube 2 includes an inner bladder tube layer 21 and an outer bladder tube layer 22 which are nested. The inner bladder tube layer 21 is directly wrapped on the outer wall of the sheath tube 1;

[0033] The injection tube 3 includes an air injection tube 31 and a liquid injection tube 32. One end of the air injection tube 31 extends into the space between the inner bladder tube layer 21 and the outer bladder tube layer 22 and is tightly fixed by suction. One end of the liquid injection tube 32 extends into the space between the inner bladder tube layer 21 and the sheath tube 1 and is tightly fixed by suction. And air stop valves 311 and liquid stop valves 321 are respectively arranged at the other ends of the air injection tube 31 and the liquid injection tube 32 to independently switch on and off the air injection tube 31 and the liquid injection tube 32;

[0034] When it is necessary to retract the endoscope due to endoscope hugging, after opening the air injection tube 31 to inject gas into the space between the inner bladder tube layer 21 and the outer bladder tube layer 22 to expand the ureter, open the liquid injection tube 32 to inject physiological saline into the space between the inner bladder tube layer 21 and the sheath tube 1 to separate the inner bladder tube layer 21 and the sheath tube 1, so as to facilitate the withdrawal of the sheath tube 1.

[0035] In this embodiment, mainly when endoscope hugging occurs in the ureter, open the air stop valve 311 and inject gas into the bladder tube 2 through the air injection tube 31 so that it can expand the ureter. Then open the liquid stop valve 321 and inject physiological saline into the space between the inner bladder tube layer 21 and the outer wall of the sheath tube 1 through the liquid injection tube 32 to form a gap between the inner bladder tube layer 21 and the outer wall of the sheath tube 1, so that the sheath tube 1 can be smoothly withdrawn. After the sheath tube 1 is smoothly withdrawn, discharge the gas in the bladder tube 2 through the air injection tube 31, and then guide the bladder tube 2 to leave the ureter through the injection tube 3.

[0036] The utility model can adsorb and wrap on the outer wall of the sheath tube 1 of the ureteroscope. When endoscope hugging occurs, the air stop valve 311 can be opened to inject gas into the bladder tube 2 through the air injection tube 31, so that the bladder tube 2 can expand the ureter. Then open the liquid stop valve 321 and inject physiological saline into the space between the inner bladder tube layer 21 and the outer wall of the sheath tube 1 through the liquid injection tube 32 to form a gap between the inner bladder tube layer 21 and the outer wall of the sheath tube 1, so that the sheath tube 1 can be smoothly withdrawn. After the sheath tube 1 leaves, discharge the gas in the bladder tube 2, and guide the bladder tube 2 to leave the ureter through the injection tube 3, realizing the rescue when endoscope hugging occurs in the ureteroscope, being able to help the ureteroscope smoothly disengage, and preventing the ureter from being avulsed and fractured.

[0037] Wherein, the end of the air injection tube 31 with the air stop valve 311 is used to connect to an air cylinder. Similarly, the end of the liquid injection tube 32 with the liquid stop valve 321 is used to connect to a syringe.

[0038] In order to enable the bladder tube 2 to be tightened and adsorbed on the sheath tube 1 after vacuum treatment, the following preferred embodiments are proposed.

[0039] Embodiment 1:

[0040] As shown in Figure 2 FIG. 4, the gas injection tube 31 and the liquid injection tube 32 penetrate into the side walls of the outer layer 22 and the inner layer 21 of the balloon tube. Both ends of the balloon tube 2 have a smaller diameter so as to be tightened on the sheath tube 1.

[0041] Specifically, by providing a smaller port on the balloon tube 2, it can be tightened and adsorbed on the sheath tube 1. At this time, the gas injection tube 31 and the liquid injection tube 32 penetrate into the side walls of the outer layer 22 and the inner layer 21 of the balloon tube.

[0042] Embodiment 2:

[0043] As shown in Figure 3 FIG. 5, rubber rings 23 are provided at both ends of the balloon tube 2, and the balloon tube 2 is tightened and fixed on the sheath tube 1 through the rubber rings 23. The gas injection tube 31 and the liquid injection tube 32 penetrate into the outer walls of the rubber rings 23 far from the end of the sheath tube 1.

[0044] Specifically, the balloon tube 2 is tightened and fixed on the sheath tube 1 through the rubber rings 23 provided at both ends. At this time, the gas injection tube 31 and the liquid injection tube 32 penetrate into the rubber rings 23 far from the end of the sheath tube 1.

[0045] Since the injection tubes 3 are arranged on the outer side of the sheath tube 1, protrusions will be formed. Therefore, in order to enable the sheath tube 1 to smoothly enter the ureter, the following preferred embodiments are proposed.

[0046] As shown in Figure 2 FIG. 6 or FIG. 7, the portions of the gas injection tube 31 and the liquid injection tube 32 close to the end of the sheath tube 1 are beveled.

[0047] Specifically, one ends of the gas injection tube 31 and the liquid injection tube 32 close to the end of the sheath tube 1 are beveled, and the long side of the cut is closely attached to the outer wall of the sheath tube 1. Thus, after adsorption and fixation, the slope of the outer wall of the balloon tube 2 is reduced, effectively avoiding excessive protrusions that may cause difficulties in inserting the endoscope or damage to the ureter.

[0048] The balloon tube 2 is arranged on the outer wall close to the entrance end of the sheath tube 1, and the injection tube 3 extends to the operating end of the ureteroscope. The balloon tube 2 can only fix one end of the injection tube 3. Therefore, in order to completely fix the injection tube 3 on one side of the sheath tube 1, the following preferred embodiments are proposed.

[0049] As shown in Figure 4 FIG. 8, the ends of the gas injection tube 31 and the liquid injection tube 32 close to the eyepiece of the ureteroscope are fixed by a tie magic tape 33.

[0050] Specifically, the tie magic tape 33 can fix the ends of the gas injection tube 31 and the liquid injection tube 32 close to the eyepiece on the outer wall of the sheath tube 1.

[0051] When there is no mirror holding, the rigid ureteroscope directly contacts the ureter and the urethra through the outer layer 22 of the balloon tube. When mirror holding occurs and the balloon tube 2 detaches from the sheath tube 1, it directly contacts the urethra through the outer wall of the sheath tube 1. Therefore, in order to enable the rigid ureteroscope to smoothly enter and exit the ureter and the urethra, the following preferred embodiments are proposed.

[0052] Both the surface of the outer layer 22 of the balloon tube and the outer wall of the sheath tube 1 have hydrophilic coatings.

[0053] Among them, adding hydrophilic coatings to the outer layer 22 of the balloon tube and the outer wall of the sheath tube 1 can reduce the friction between the outer layer 22 of the balloon tube and the outer wall of the sheath tube 1 and the ureter, enabling the ureteroscope to smoothly enter and exit the ureter and the urethra.

[0054] When mirror holding occurs in the present utility model, the air stop valve 311 is opened and gas is injected into the cavity of the balloon tube 2 through the gas injection tube 31, so that the balloon tube 2 can expand the ureter. Then the liquid stop valve 321 is opened and normal saline is injected between the inner layer 21 of the balloon tube and the outer wall of the sheath tube 1 through the liquid injection tube 32 to form a gap. Then the ureteroscope is withdrawn. After the ureter is withdrawn, the air in the balloon tube 2 is discharged through the gas injection tube 31, and the balloon tube 2 is guided to leave the ureter through the injection tube 3.

[0055] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present application.

Claims

1. A tube sheath mirror-holding detachment device attached to the outside of a ureteroscope sheath tube, characterized in that, Comprising: A rigid ureteroscope, the rigid ureteroscope having a sheath tube (1), one end of the sheath tube (1) being provided with a light guide port, an eyepiece, an instrument channel, and a flushing fluid inlet and outlet; A bladder tube (2), sleeved on the sheath tube (1) and having both ends tightly bound to the outer wall of the sheath tube (1), and adsorbed on the outer wall of the sheath tube (1) after vacuum treatment. The bladder tube (2) includes an inner bladder layer (21) and an outer bladder layer (22) nested therein, and the inner bladder layer (21) directly wraps around the outer wall of the sheath tube (1); An injection tube (3), the injection tube (3) including an air injection tube (31) and a liquid injection tube (32). One end of the air injection tube (31) extends into the space between the inner bladder layer (21) and the outer bladder layer (22) and is suction-fixed, and one end of the liquid injection tube (32) extends into the space between the inner bladder layer (21) and the sheath tube (1) and is suction-fixed. Moreover, the other ends of the air injection tube (31) and the liquid injection tube (32) are respectively provided with an air stop valve (311) and a liquid stop valve (321) to independently open and close the air injection tube (31) and the liquid injection tube (32); When it is necessary to retract the mirror due to mirror holding, after opening the air injection tube (31) to inject gas into the space between the inner bladder layer (21) and the outer bladder layer (22) to expand the ureter, open the liquid injection tube (32) to inject physiological saline into the space between the inner bladder layer (21) and the sheath tube (1) to separate the inner bladder layer (21) and the sheath tube (1), so as to facilitate the withdrawal of the sheath tube (1).

2. A tube sheath mirror-holding detachment device attached to the outside of a ureteroscope sheath tube according to claim 1, characterized in that The air injection tube (31) and the liquid injection tube (32) penetrate into the side walls of the outer bladder layer (22) and the inner bladder layer (21), and both ends of the bladder tube (2) have a smaller diameter so as to be able to be tightened on the sheath tube (1).

3. A tube sheath mirror-holding detachment device attached to the outside of a ureteroscope sheath tube according to claim 2, characterized in that Both ends of the bladder tube (2) are provided with rubber rings (23), and are tightened and fixed on the sheath tube (1) through the rubber rings (23). The air injection tube (31) and the liquid injection tube (32) penetrate into the outer wall of the rubber ring (23) far from the end of the sheath tube (1).

4. A tube sheath mirror-holding detachment device attached to the outside of a ureteroscope sheath tube according to claim 2 or 3, characterized in that The parts of the air injection tube (31) and the liquid injection tube (32) close to the end of the sheath tube (1) are subjected to bevel cutting treatment.

5. A tube sheath mirror-holding detachment device attached to the outside of a ureteroscope sheath tube according to claim 3, characterized in that One ends of the air injection tube (31) and the liquid injection tube (32) close to the eyepiece of the ureteroscope are fixed by a cable tie and a magic tape (33).

6. A tube sheath mirror-holding detachment device attached to the outside of a ureteroscope sheath tube according to claim 3, characterized in that Both the surface of the outer bladder layer (22) and the outer wall of the sheath tube (1) have a hydrophilic coating.

Images