CN114176732B - Injection device for ureteral reflux treatment and use method thereof - Google Patents
Injection device for ureteral reflux treatment and use method thereof Download PDFInfo
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- CN114176732B CN114176732B CN202111616898.1A CN202111616898A CN114176732B CN 114176732 B CN114176732 B CN 114176732B CN 202111616898 A CN202111616898 A CN 202111616898A CN 114176732 B CN114176732 B CN 114176732B
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- hose
- guide
- needle
- guide mechanism
- ureter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/307—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the urinary organs, e.g. urethroscopes, cystoscopes
Abstract
The application relates to an injection device for ureteral reflux treatment, which relates to the technical field of medical injectors and comprises an injection mechanism and a guide mechanism, wherein the injection mechanism comprises a hose, a needle head and a piston push rod, the needle head is connected to one end of the hose, the piston push rod is slidably connected to the other end of the hose, one end of the guide mechanism is connected to the hose, the guide mechanism has elasticity, and the distance between any point on the guide mechanism and the central line of the hose gradually increases along with the extension of the guide mechanism in a natural state. The application has the effect of improving the accuracy of the injection position of the needle head.
Description
Technical Field
The application relates to the technical field of medical injectors, in particular to an injection device for ureteral reflux treatment.
Background
Vesicoureteral reflux refers to a pathological condition in which urine in the bladder flows back to the ureters and kidneys, causing a series of adverse effects on the human body. The ureter is connected between the human body's bladder and the kidney, and ureter one end and kidney intercommunication, the other end and bladder intercommunication, the urine that the kidney produced flow to the bladder through the ureter in, under normal condition, the urine can only flow in the bladder from the ureter one way, the urine in the bladder can't flow back to the ureter. The pathological state of vesicoureteral reflux can occur when the vesicoureteral connection is abnormal. When a patient generates ureteral reflux, one treatment method is that medical staff performs submucosal injection of a medical swelling agent at a 6-point position below a ureteral orifice (a direction of defining a position of the ureteral orifice close to a kidney is 12-point position, and the opposite side of the ureteral orifice is 6-point position, namely, the side of the ureter far away from the kidney is just below the ureter), namely, the side of the ureteral orifice far away from the kidney is just below the ureter, so that a joint of the bladder and the ureter generates a bulge, and a slit orifice formed by the bulge generated by manpower appears after injection, so that the ureter can be blocked and the phenomenon of urine reflux in the bladder can be relieved. Wherein the accuracy of the insertion point and the insertion position is critical to the success and effectiveness of the procedure.
The relevant ureter is injection device for reflux treatment includes hose, syringe needle and piston push rod, and the hose is for having flexible tubular structure, and one end and the syringe needle sealing connection of hose have seted up the through-hole on the syringe needle, and the hose other end and piston push rod sliding connection, and the piston push rod inserts in the hose. A user firstly inserts the endoscope into the bladder of a patient through the urethra, the end part of the endoscope is positioned at the joint of the bladder and the ureter, a working channel is formed in the endoscope, after the user sucks the medical swelling agent into the hose, the needle head and the hose can be inserted into the endoscope positioned at one side outside the patient, the needle head and the hose advance in the working channel of the endoscope until the needle head and the hose are positioned in the bladder of the patient, the user continues to push the hose, the end part of the endoscope can extend, and at the moment, the needle head can be inserted under the mucosa of the bladder of the patient or under the mucosa in the ureter wall, so that the injection is completed.
The related technical scheme has the following defects: after the user stretches out the syringe needle from the endoscope tip, because the hose has flexibility, the user is difficult to control the position of syringe needle, and then makes the syringe needle be difficult to accurate 6 positions just below the ureter and inject to the uplift position that makes the injection leavening agent form is crooked, and is not good to the effect of shutoff ureter.
Disclosure of Invention
In order to improve the accuracy of the injection position of the needle, the application provides an injection device for ureteral reflux treatment.
The application provides an injection device for ureteral reflux treatment, which adopts the following technical scheme:
the utility model provides an injection device for ureteral reflux treatment, includes injection mechanism and guiding mechanism, and injection mechanism includes hose, syringe needle and piston push rod, and the one end on the hose is connected to the syringe needle, and piston push rod sliding connection is on the other end on the hose, and guiding mechanism one end is connected on the hose, and guiding mechanism has elasticity, and under the nature state, the interval of arbitrary one point on the guiding mechanism and the central line of hose is along with guiding mechanism extension grow gradually.
Through adopting above-mentioned technical scheme, through connecting guiding mechanism on the hose, guiding mechanism has elasticity, user can buckle guiding mechanism through buckling, make guiding mechanism buckle to the straight state, in the working channel with guiding mechanism stopper endoscope, user passes through the endoscope with the in-process of syringe needle sending into patient's bladder, guiding mechanism can stretch out from the port of working channel at first, user can observe the length and the orientation of guiding mechanism extension through the endoscope this moment, and then through rotating the hose, make guiding mechanism follow the hose gyration, reach the effect of adjustment guiding mechanism orientation, user can continue to promote the hose, make guiding mechanism continue to stretch out and insert in patient's ureter, after guiding mechanism inserts in the patient ureter completely, the syringe needle is located guiding mechanism below, guiding mechanism can support the syringe needle, make the syringe needle keep being located 6 positions below the ureter, user promotes the hose this moment, can make the syringe needle straight removal, reach the effect of controlling the syringe needle position, make the accurate tieing of 6 positions below the mucosa or mouth inner wall 6 positions of ureter, promote the accuracy of syringe needle injection position.
Optionally, the guiding mechanism is a guiding element, one end of the guiding element is connected to the hose, and the guiding element is arc-shaped in a natural state.
Through adopting above-mentioned technical scheme, through installing the guide on the hose, make the guide set up to arc structure to make the guide insert to the ureter of patient in after, the guide can be crooked to the arc naturally, makes the guide can laminate the patient ureter, makes the guide can stabilize the butt in the patient ureter, thereby provides more stable location effect to injection mechanism.
Optionally, the guide mechanism is provided with a reflective strip, and the reflective strip is arranged along the extending direction of the guide mechanism.
Through adopting above-mentioned technical scheme, through installing the reflection of light strip on the guide, the user can observe the extending direction of reflection of light strip through the endoscope, and then the convenience of use person judges transparent guide's shape in the bladder, and the convenience of use person adjusts the orientation of guide and inserts the guide in the patient ureter.
Optionally, two convex circles are connected to the hose, a mounting ring is arranged between the two convex circles, the mounting ring is sleeved on the hose and used for sliding on the hose, and the convex circles are used for clamping the mounting ring.
Through adopting above-mentioned technical scheme, through installing the bulge on the hose, set up the collar between the bulge, make the guide can be connected on the hose through the collar, convenient production and processing.
Optionally, an abutting surface II is formed on an end surface of one side, close to the mounting ring, of the convex circle, an abutting surface I is formed on an end surface of the mounting ring, and the abutting surface I and the abutting surface II are used for abutting each other and in friction connection.
Through adopting above-mentioned technical scheme, through seting up the butt face two on the bulge, seting up the butt face one on the collar, make butt face one and butt face two set up to rough surface, and then can mutual frictional connection when making butt face one and butt face two looks butt, after butt face one and butt face two looks butt each other, the user can make the hose drive the guide and rotate through rotating the hose, reaches the effect of adjustment guide.
Optionally, the hose overcoat is equipped with the pipe, and guiding mechanism sets up to the elasticity end, and pipe and elasticity end are transparent material and make, and the pipe is tubular structure, and pipe one end is connected with the elasticity end, has seted up the through hole with elasticity end junction on the pipe, and the through hole is used for making the syringe needle stretch out from the pipe.
Through adopting above-mentioned technical scheme, through establishing the pipe at the hose overcoat, connect the elasticity end in pipe one end, make the elasticity end can be crooked naturally, and then make the elasticity end can play the effect of direction, the user can make the one end of keeping away from the elasticity end on the pipe stretch out to the patient outside from the endoscope, the convenience of use person rotates the pipe and controls the orientation of elasticity end, can promote the precision of control guiding mechanism orientation.
Alternatively, the elastic end is provided in a circular tubular structure.
Through adopting above-mentioned technical scheme, through making the elastic end set up to the tubular structure, make the tubular elastic end insert after the ureter, can prop up the ureter, the user can observe the position of the syringe needle in the pipe and the condition of ureter through the endoscope, and then the convenient user selects the intraductal suitable position of ureter to inject.
Optionally, a guiding part is connected in the elastic end, and the guiding part is used for blocking one end, close to the catheter, of the elastic end.
By adopting the technical scheme. The guide part is arranged on the elastic end, so that the guide part seals the elastic end, and then the insertion of the needle into the elastic end in the process of moving in the catheter is reduced, and the needle can smoothly extend out of the through hole in the moving process.
The application method of the injection device for ureteral reflux treatment provided by the application adopts the following technical scheme:
an injection device for ureteral reflux treatment and a use method thereof, comprising the following steps:
s1: inserting one end of an endoscope into a patient, sucking a medical swelling agent into an injection mechanism, poking the guide mechanism to a straight state, firstly inserting the guide mechanism into a working channel, and then inserting one end, connected with a needle, of a hose into the patient from outside the patient through the working channel;
s2: observing the inside of the bladder of the patient through an endoscope, so that the end part of the guide mechanism extends out of the working channel;
s3: rotating the flexible tube to extend the guide mechanism into the patient ureter;
s4: pushing the injection mechanism to make the needle prick into the bladder of the patient to complete the injection.
Through adopting above-mentioned technical scheme, through dialling guide mechanism and inserting in the working channel, make guide mechanism keep straight state and advance along with injection mechanism, when the syringe needle still is in the endoscope, the elasticity end can stretch out and crooked from the endoscope, the user can change through rotating the hose this moment, make guide mechanism's orientation, convenience user inserts guide mechanism in the patient ureter, after guide mechanism is located the patient ureter, the ureter can play the positioning action, make the syringe needle can keep being located patient ureter and bladder junction, the user promotes the hose this moment, can make the syringe needle insert on the bladder inner wall that is located the ureter downside, the uplift that forms after making medical leavening agent inject can accurately plug up the ureter, promote the accuracy of syringe needle injection.
In summary, the beneficial technical effects of the application are as follows:
1. the guide mechanism is connected to the hose, the guide mechanism is elastic, a user can bend the guide mechanism to be in a straight state through bending the guide mechanism, the guide mechanism is plugged into a working channel of the endoscope, the user can extend out of a port of the working channel firstly in the process of conveying a needle into a patient's bladder through the endoscope, at the moment, the user can observe the length and the direction of the extending part of the guide mechanism through the endoscope, and further rotate the hose to enable the guide mechanism to rotate along with the hose, so that the effect of adjusting the direction of the guide mechanism is achieved, the user can continuously push the hose, the guide mechanism can continuously extend out and be inserted into the ureter of the patient, after the guide mechanism is completely inserted into the ureter of the patient, the needle is positioned below the guide mechanism, the guide mechanism can support the needle, the needle is kept at a position below the ureter, at the moment, the user pushes the hose, the needle can be enabled to move straight, the effect of controlling the position of the needle is achieved, the needle can be accurately pricked under the mucosa of the bladder at a position of a 6 point below a ureter or under a 6 point position of the ureter, and the accuracy of the injection position of the needle is improved;
2. by installing the reflective strip on the guide member, a user can observe the extending direction of the reflective strip through the endoscope, so that the user can conveniently judge the shape of the transparent guide member in the bladder, and can conveniently adjust the orientation of the guide member and insert the guide member into the patient ureter;
3. through establish the pipe at the hose overcoat, connect the elasticity end in pipe one end, make the elasticity end can be crooked naturally, and then make the elasticity end can play the effect of direction, the user can make the one end of keeping away from the elasticity end on the pipe stretch out to the patient outside from the endoscope, the convenience of use person rotates the pipe and controls the orientation of elasticity end, can promote the precision of control guiding mechanism orientation.
Drawings
Fig. 1 is a schematic cross-sectional view of an injection mechanism of embodiment 1 of the present application.
Fig. 2 is a schematic view of the usage state of embodiment 1 of the present application.
Fig. 3 is a cross-sectional view of the A-A plane of fig. 2.
Fig. 4 is a schematic diagram showing the connection relationship between the guide member and the reflective strip in embodiment 1 of the present application.
Fig. 5 is a schematic diagram showing the connection relationship between the guide and the injection mechanism in embodiment 2 of the present application.
Fig. 6 is a schematic view of the usage state of embodiment 3 of the present application.
Fig. 7 is an enlarged view of a portion a in fig. 6.
Fig. 8 is a sectional structural view of embodiment 3 of the present application.
Reference numerals: 1. an injection mechanism; 11. a hose; 12. a needle; 13. a piston push rod; 2. a guide member; 21. a reflective strip; 22. a mounting ring; 221. an abutting surface I; 3. convex round; 31. an abutting surface II; 4. a conduit; 5. an elastic end; 51. a through hole; 52. a guide part; 6. an endoscope; 61. a working channel.
Detailed Description
The application is described in further detail below with reference to fig. 1-8.
Example 1
The embodiment of the application discloses an injection device for ureteral reflux treatment. Referring to fig. 1, including injection mechanism 1 and guiding mechanism, injection mechanism 1 includes hose 11, syringe needle 12 and piston push rod 13, hose 11 is for having flexible hollow structure, hose 11 one end sealing connection has syringe needle 12, the other end sliding connection has piston push rod 13, the user can inhale medical leavening agent in hose 11 through piston push rod 13, and 6 point urinary bladder submucosa below the ureteral orifice of patient or 6 point submucosa in the ureteral orifice ureteral wall of patient is injected to the medical leavening agent through syringe needle 12, namely under the urinary bladder submucosa just below the ureteral orifice, appear a slit-like drill way after the injection is accomplished, thereby reduce the probability that urine stored in the urinary bladder flows into patient ureter and kidney through the ureteral reflux, reduce the adverse effect that the vesicoureteral reflux phenomenon caused to the patient.
Referring to fig. 2 and 3, a user can insert an endoscope 6 into the patient's bladder through the urethra, the endoscope 6 being adapted to extend to the junction of the patient's ureter and the bladder, thereby facilitating the user's observation of the patient's condition and determination of the injection site. The endoscope 6 has a rod-shaped structure, a working channel 61 is arranged in the endoscope 6, one end of the working channel 61 is positioned outside the patient on the endoscope 6, and the other end of the working channel 61 is positioned at the end part of the endoscope 6 positioned in the patient. The user can advance the end of the tube 11 connected to the needle 12 within the working channel 61 and into the patient by inserting the end of the tube 11 connected to the needle 12 from the working channel 61. The user can extend the needle 12 from the end of the working channel 61 and insert the needle under the bladder mucosa of the patient by applying pressure to the hose 11, and at this time, the user can inject the medical swelling agent stored in the hose 11 under the bladder mucosa of the patient by pushing the piston push rod 13, so that the operation is completed.
Referring to fig. 4, the guide mechanism is provided as a guide 2, the guide 2 being mounted on the hose 11 at the end connected to the needle 12. The guide member 2 is made of a transparent material having elasticity, the cross section of the guide member 2 is arc-shaped, and the guide member 2 can be bent into an arc shape in a natural state. One end of the guide member 2 is attached to the side wall of the hose 11 by bonding or integrally molding. The guide 2 can be kept in a bent state in a natural state, and the end of the guide 2 away from the hose 11 can be moved in a direction away from the hose 11 by its own elasticity in a natural state. In a natural state, the distance between any point on the guide member 2 and the center line of the hose 11 becomes gradually larger as the guide member 2 extends. When both the hose 11 and the guide 2 are in a straight state, the length of the guide 2 is greater than the length from the end of the needle 12 to the connection of the guide 2 and the hose 11. The user firstly bends the guide member 2 to a straight state, then inserts the guide member 2 and the hose 11 into the working channel 61 of the endoscope 6, after the needle 12 gradually moves into the patient, the guide member 2 can firstly extend out of the working channel 61, at the moment, the user continues to extend the guide member 2, and the hose 11 can transmit torque by rotating one end of the hose 11 located outside the patient, so that the guide member 2 rotates in the patient through the hose 11, and the effect of adjusting the position of the guide member 2 is achieved. The user can insert guide 2 in patient's ureter to reach the effect of location, the syringe needle 12 can keep being located the position of ureter mouth below this moment, the user promotes hose 11, can make syringe needle 12 advance and prick patient's bladder, accomplish the injection, through making guide 2 insert in the ureter, reach the purpose that makes guide 2 to needle 12 location, thereby promote the accuracy of syringe needle 12 injection position, the uplift position that makes after the injection can be located predetermined position, reduce injection position skew, the uplift after the injection is difficult to correct the palirrhea probability of ureter completely.
Referring to fig. 4, the guide member 2 is provided with a reflective strip 21, the reflective strip 21 is made of a reflective material, the reflective strip 21 is connected to the guide member 2 by means of adhesion, and when the guide member 2 is in a flat state, the reflective strip 21 is in a flat state and the length direction is parallel to the length direction of the guide member 2. The reflective strip 21 can be bent to the same shape as the extending direction of the guide 2 when the guide 2 is bent. When the guide 2 is extended from the endoscope 6 and positioned in the bladder of the patient, the user can observe the shape of the reflective strip 21 through the endoscope 6, thereby knowing the shape of the guide 2. After the user stretches the guide member 2 into the patient catheter, he can observe the shape of the reflecting strip 21, and when the shape of the reflecting strip 21 is irregular, he indicates that the guide member 2 is bent in the catheter, and at this time, he makes the shape of the reflecting strip 21 arc by rotating the hose 11, and at this time, he indicates that the guide member 2 is rotated to the correct position in the patient ureter.
The implementation principle of the embodiment of the application is as follows: through installing guide 2 on hose 11, make guide 2 can automatic perk, the user can insert in patient's bladder with endoscope 6, send into patient's bladder with guide 2 and syringe needle 12 through the work passageway 61 on the endoscope 6, the user is through stretching out guide 2 from endoscope 6, make guide 2 perk naturally, and then make guide 2 can stretch into the ureter and support in the ureter, reach the effect to needle 12 location, the user can be through observing the shape of reflection of light strip 21, thereby play the effect of judging the shape and the orientation of guide 2, the user can make guide 2 and needle 12 rotate through rotating hose 11, when the reflection of light strip 21 shape on the guide 2 is regular arc, at this moment, needle 12 is in bladder one side of ureter below, the user is through promoting hose 11, can make needle 12 insert on the bladder inner wall and accomplish the injection, have the effect that the convenient to use person controlled the position of needle 12, can promote the operation quality of injecting medical leavening agent.
Example 2
The embodiment of the application discloses an injection device for ureteral reflux treatment. Referring to fig. 5, the difference from embodiment 1 is that the guide 2 is slidably coupled to the hose 11. The guide member 2 is connected with a mounting ring 22, and the guide member 2 and the mounting ring 22 are connected in an integrated or bonded mode. The mounting ring 22 is fitted over the hose 11 and is slidable along the length of the hose 11. The hose 11 is connected with two convex circles 3, the convex circles 3 are of circular ring-shaped structures, the convex circles 3 are coaxially sleeved on the hose 11, and a gap exists between the two convex circles 3. The bosses 3 are integrally formed with the hose 11, and the mounting ring 22 is positioned between the two bosses 3, so that the guide 2 can slide reciprocally between the two bosses 3. The guide member 2 is slidably connected to the hose 11 through the mounting ring 22, which can be manufactured easily, and the guide member 2 can be mounted on the hose 11 easily and quickly.
Referring to fig. 5, an abutting surface two 31 is formed on an end surface of the bulge 3 near the guide member 2, two abutting surfaces one 221 are formed on an end surface of the mounting ring 22, the abutting surface two 31 and the abutting surface one 221 are provided with rough surfaces, when a user moves the hose 11, the abutting surface two 31 and the abutting surface one 221 can be contacted, the mounting ring 22 is further in friction connection with the bulge 3, and at the moment, the user can drive the guide member 2 to rotate when rotating the hose 11, so that the effect of rotating the end part of the guide member 2 to a direction facing the ureter and inserting the guide member 2 into the ureter is achieved.
The implementation principle of the embodiment of the application is as follows: through sliding connection collar 22 on hose 11, make collar 22 be located between two convex circles 3, and then make guide 2 can pass through collar 22 sliding connection on hose 11, conveniently install guide 2 on hose 11, through making convex circle 3 and collar 22 friction connection, and then make the moment of torsion of hose 11 transmit to guide 2 on, the user rotates hose 11, can make guide 2 rotate along with hose 11, the convenience of use user inserts guide 2 in the ureter and fix a position syringe needle 12.
Example 3
The embodiment of the application provides an injection device for ureteral reflux treatment, referring to fig. 6 and 7, on the basis of embodiment 1, a catheter 4 is sleeved on a hose 11, the catheter 4 is made of transparent materials, the catheter 4 is of a circular tubular structure, and the catheter 4 has flexibility. After the user inserts the endoscope 6 into the patient, the catheter 4 can be passed with the hose 11 from the working channel 61 into the patient. The guiding mechanism is arranged as an elastic end head 5, the elastic end head 5 is connected to one end of the catheter 4 close to the needle 12, and the catheter 4 is connected with the elastic end head 5 in an integrated mode. The user can rotate the catheter 4 within the working channel 61 by rotating the end of the catheter 4 that is located outside the patient. The elastic end 5 has elasticity, and the elastic end 5 can be crooked into the arc under natural state, through using the elastic end 5 to replace guide 2, the user makes the elastic end 5 stretch into in the ureter through moving pipe 4, can fix a position syringe needle 12, and the passing hole 51 has been seted up to the elastic end 5 and pipe 4 junction, and syringe needle 12 can follow and slide out in the passing hole 51, and the user carries out the injection operation. The side of keeping away from the crooked orientation of elasticity end 5 on elasticity end 5 is offered through hole 51, and when elasticity end 5 inserts in the patient ureter, 6 positions below the ureter are faced through hole 51, namely under the patient ureter is faced through hole 51, and after the syringe needle 12 stretches out from passing hole 12, can insert under the bladder mucosa of 6 positions below the ureter, and then promotes the accuracy of syringe needle 12 injection position.
Referring to fig. 7 and 8, the elastic end 5 is of a circular tube structure, the cross section of the elastic end 5 is circular ring-shaped, the elastic end 5 is made of transparent materials, after a user inserts the elastic end 5 into a patient ureter, the user can push the elastic end 5 in the ureter and support the ureter, and medical observation of the ureter through the endoscope 6 is facilitated.
Referring to fig. 6 and 8, the reflective strip 21 is mounted on the elastic tip 5, and the reflective strip 21 is used to bend with the elastic tip 5, and when the elastic tip 5 is inserted into the patient ureter and bent, the shape of the reflective strip 21 is bent, thereby facilitating the user to rotate the catheter 4 and adjust the position of the elastic tip 5, so that the elastic tip 5 can be inserted into the ureter and the needle 12 can be positioned below the patient ureter.
Referring to fig. 6 and 8, a guide portion 52 is disposed in the elastic tip 5, the guide portion 52 is used for blocking one end of the elastic tip 5 connected to the catheter 4, the length direction of the guide portion 52 is parallel to the length direction of the catheter 4, and the guide portion 52 is connected to the elastic tip 5 by bonding or integrally forming. When the elastic end 5 extends out of the working channel 61, the elastic end 5 is naturally bent, at this time, a user pushes the hose 11 to enable the needle 12 to slide in the catheter 4, the guide part 52 seals the elastic end 5, the guide part 52 has the effect of guiding the needle 12, the needle 12 can advance in the catheter 4 and extend out of the through hole 51, the probability of inserting the needle 12 into the elastic end 5 is reduced, and the use is convenient.
The implementation principle of the embodiment of the application is as follows: through establish pipe 4 at hose 11 overcoat, connect elastic end 5 on pipe 4, make elastic end 5 can stretch out through working channel 61 and crooked naturally, thereby make elastic end 5 can stretch into in the patient ureter and fix a position syringe needle 12, through making elastic end 5 set up to the tubular structure, make elastic end 5 insert after the ureter, can support the ureter, through making elastic end 5 set up to transparent, the user conveniently observes the ureter through endoscope 6, through setting up guide part 52 on elastic end 5, make guide part 52 play the effect to syringe needle 12 direction, the user can promote hose 11, make hose 11 slide in pipe 4, and then make syringe needle 12 can stretch out and inject from through hole 51.
The application provides a use method of an injection device for ureteral reflux treatment, which comprises the following steps:
s1: inserting one end of an endoscope 6 into a patient, positioning the end of the endoscope 6 near the joint of the patient's bladder and ureter, sucking a medical leavening agent into the injection mechanism 1, poking the guide mechanism to a straight state, firstly inserting the guide mechanism into the working channel 61, and then inserting one end of the hose 11, which is connected with the needle 12, into the patient from outside the patient through the working channel 61;
s2: observing the inside of the bladder of the patient through the endoscope 6, and pushing the flexible tube 11 to extend the end of the guide mechanism out of the working channel 61;
s3: judging the extending direction of the guide piece 2 and the position in the ureter by observing the shape of the reflecting strip 21, and rotating the hose 11 to enable the guide mechanism to extend into the patient ureter, so that the bending radian of the guide mechanism in a natural state is matched with the radian of the ureter;
s4: the injection mechanism 1 is pushed to enable the needle 12 to extend out of the through hole 51, and the needle 12 is pricked into the 6-point submucosa of the bladder below the ureter mouth or the 6-point submucosa in the ureter wall to complete injection.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (7)
1. An injection device for ureteral reflux treatment, characterized in that: the medical syringe comprises an injection mechanism (1) and a guide mechanism, wherein the injection mechanism (1) comprises a hose (11), a needle (12) and a piston push rod (13), when the medical syringe is used, a medical swelling agent is sucked into the injection mechanism (1), the needle (12) is connected to one end of the hose (11), the piston push rod (13) is connected to the other end of the hose (11) in a sliding manner, one end of the guide mechanism is connected to the hose (11), the guide mechanism has elasticity, under a natural state, the distance between any point on the guide mechanism and the central line of the hose (11) gradually increases along with the extension of the guide mechanism, when the hose (11) and the guide mechanism are in a straight state, the length of the guide mechanism is longer than the length from the end part of the needle (12) to the joint of the guide mechanism and the hose (11), the guide mechanism can rotate through rotating the hose (11), the guide mechanism and the needle (12) can naturally tilt after being inserted into a ureter of a patient, the needle (12) can be further kept at a position below a ureter port, the needle (12) can be positioned, and the accuracy of the injection position of the needle (12) can be improved;
the hose is characterized in that two convex circles (3) are connected to the hose (11), a mounting ring (22) is arranged between the two convex circles (3), the mounting ring (22) is sleeved on the hose (11), the mounting ring (22) is used for sliding on the hose (11), and the convex circles (3) are used for clamping the mounting ring (22).
2. The ureteral reflux treatment injection device according to claim 1, characterized in that: the guide mechanism is arranged as a guide piece (2), one end of the guide piece (2) is connected to the hose (11), and the guide piece (2) is arc-shaped in a natural state.
3. The ureteral reflux treatment injection device according to claim 1, characterized in that: the light reflecting strip (21) is arranged on the guide mechanism, and the light reflecting strip (21) is arranged along the extending direction of the guide mechanism.
4. The ureteral reflux treatment injection device according to claim 1, characterized in that: an abutting surface II (31) is formed on the end face, close to the mounting ring (22), of the convex circle (3), an abutting surface I (221) is formed on the end face of the mounting ring (22), and the abutting surface I (221) and the abutting surface II (31) are used for abutting each other and in friction connection.
5. An injection device for ureteral reflux treatment, characterized in that: the medical leavening agent injection device comprises an injection mechanism (1) and a guide mechanism, wherein the injection mechanism (1) comprises a hose (11), a needle head (12) and a piston push rod (13), the medical leavening agent is sucked into the injection mechanism (1) when the medical leavening agent injection device is used, a catheter (4) is sleeved outside the hose (11), the needle head (12) is connected to one end of the hose (11), the piston push rod (13) is slidably connected to the other end of the hose (11), the guide mechanism is elastic, and the distance between any point on the guide mechanism and the central line of the hose (11) gradually increases along with the extension of the guide mechanism in a natural state; the guide mechanism and the needle (12) can rotate through rotating the catheter (4), and the guide mechanism naturally tilts after being inserted into a ureter of a patient, so that the needle (12) is kept at a position below a ureter opening, the needle is positioned, and the accuracy of the injection position of the needle (12) is improved;
the flexible pipe (11) is sleeved with the guide pipe (4), the guide mechanism is arranged into the elastic end head (5), the guide pipe (4) is of a round pipe-shaped structure, one end of the guide pipe (4) is connected with the elastic end head (5), a through hole (51) is formed in the connecting part of the guide pipe (4) and the elastic end head (5), and the through hole (51) is used for enabling the needle head (12) to extend out of the guide pipe (4).
6. The ureteral reflux treatment injection device according to claim 5, characterized in that: the elastic end head (5) is of a circular tube structure.
7. The ureteral reflux treatment injection device according to claim 6, characterized in that: the elastic end head (5) is internally connected with a guide part (52), and the guide part (52) is used for blocking one end, close to the catheter (4), of the elastic end head (5).
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| CN114176732A (en) | 2022-03-15 |
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