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CN-122006090-A - Injection needle under cystoscope

CN122006090ACN 122006090 ACN122006090 ACN 122006090ACN-122006090-A

Abstract

The application relates to the technical field of medical appliances, and discloses an injection needle under a cystoscope, which comprises a rotary sleeve, wherein a ring-shaped groove is formed in the position, close to one end, of the outer surface of the rotary sleeve, a connecting frame and a connecting plate are respectively and slidably arranged in the ring-shaped groove, two sides of the connecting frame are fixedly provided with pointers, the pointers correspond to graduated scales, located on two sides of a third sliding hole, of the outer surface of a stroke sleeve, and a traction rope is fixedly arranged on the front surface of the connecting frame. The connecting frame is taken down from the inside of annular groove and inserted into the inside of slot, promotes the pushing handle this moment, drives the threaded rod simultaneously, and injection push rod and rotation sleeve synchronous motion, injection push rod remove the in-process can only promote flexible syringe needle and stretch out from the inside of sheathed tube, realize that flexible syringe needle stretches out fast, make it under the prerequisite that can accurate control flexible syringe needle's the volume of stretching out, also can control flexible syringe needle and stretch out fast, enlarged the application scope of the device.

Inventors

  • WANG JUNQI
  • XIAO YONGSHUANG
  • CAI DONGHUA
  • LI YUHAN
  • CHEN ZEYU

Assignees

  • 徐州医科大学附属医院

Dates

Publication Date
20260512
Application Date
20260323

Claims (9)

  1. 1. The utility model provides an injection needle under cystoscope, its characterized in that, includes sheath pipe (1) and shell (10), the front end fixed mounting of shell (10) has stroke sleeve (11), first slide hole (12) have been seted up at the top of stroke sleeve (11) surface, second slide hole (13) have been seted up to stroke sleeve (11) surface both sides, third slide hole (14) have been seted up to the bottom of stroke sleeve (11) surface, be provided with rack (15) on the position that stroke sleeve (11) inner wall is located third slide hole (14) front side, fixed mounting has locking buckle (16) on the position that stroke sleeve (11) surface is located first slide hole (12) front side, the inside movable mounting of shell (10) has push handle (17), the front end fixed mounting of push handle (17) has threaded rod (18), the front end fixed mounting of threaded rod (18) has injection push rod (19), the front end and sheath pipe (1) fixed connection of stroke sleeve (11) outer surface is located third slide hole (14) both sides scale.
  2. 2. The cystoscope injection needle according to claim 1, wherein threads are arranged on the outer surface of the threaded rod (18), a rotating sleeve (20) is sleeved on the threaded rod, a ring-shaped groove (21) is formed in the position, close to one end, of the outer surface of the rotating sleeve (20), a connecting frame (22) and a connecting plate (23) are respectively and slidably arranged in the position, close to two sides, of the inner portion of the ring-shaped groove (21), pointers (24) are fixedly arranged on two sides of the connecting frame (22), the pointers (24) correspond to scales, located on two sides of a third sliding hole (14), of the outer surface of the stroke sleeve (11), a traction cable (25) is fixedly arranged on the front surface of the connecting frame (22), a clamping tooth plate (26) is fixedly arranged on the front surface of the connecting plate (23), and the clamping tooth plate (26) and the locking buckle (16) are in a clamping state and only allow the clamping tooth plate (26) to move unidirectionally.
  3. 3. The cystoscope injection needle according to claim 2, characterized in that a travel groove (27) is formed in one side of the outer surface of the rotating sleeve (20), an annular cavity (28) is formed in one end, far away from the annular groove (21), of the rotating sleeve (20), the annular cavity (28) is communicated with the travel groove (27), an extrusion device (29) is mounted in the travel groove (27) and the annular cavity (28) in a co-movable mode, a medicine injection channel (30) is formed in the other side of the outer surface of the rotating sleeve (20), the medicine injection channel (30) extends to the inner portion of the annular cavity (28), and a first single-pass nozzle (31) is arranged at a communication position between the inner portion of the medicine injection channel (30) and the annular cavity (28).
  4. 4. A cystoscope injection needle according to claim 3, characterized in that the extrusion device (29) comprises a ring extrusion plate (291), a mounting round hole (292) is formed in the front surface of the ring extrusion plate (291), a third single-pass nozzle (293) is arranged in the mounting round hole (292), a push rod (294) is fixedly arranged at a position, close to one side, of the front surface of the ring extrusion plate (291), and an insertion hole (295) is formed in one side of the push rod (294); The annular extrusion plate (291) is arranged at a position, close to the bottom, of the inner cavity of the annular cavity (28), the push rod (294) is arranged in the travel groove (27), and a detachable inserted rod is inserted into the insertion hole (295).
  5. 5. The cystoscope injection needle according to claim 4, wherein a liquid guide cylinder (32) is movably arranged in the annular cavity (28), a buckle (33) is fixedly arranged at a position, close to the lower side, of one end of the liquid guide cylinder (32), a liquid guide channel (34) is arranged at a position, close to the left side, of one end of the liquid guide cylinder (32), the liquid guide channel (34) penetrates through the liquid guide cylinder (32), a second single-way nozzle (35) is arranged in the liquid guide channel (34), and a liquid guide tube (36) is fixedly arranged at a position, corresponding to the liquid guide channel (34), of one end of the liquid guide cylinder (32); The liquid guide cylinder (32) is contacted with the extrusion device (29) in the initial state, the liquid guide tube (36) is communicated with the injection push rod (19), and the buckle (33) and the latch strip (15) are in corresponding states.
  6. 6. The cystoscope injection needle according to claim 5, wherein an upper round hole (2) and a lower round hole (3) are respectively formed at one end of the sheath tube (1), the injection push rod (19) extends inside the upper round hole (2), and the traction cable (25) extends inside the lower round hole (3).
  7. 7. An injection needle under cystoscope according to claim 2, characterized in that, the sheath tube (1) is kept away from the one end of shell (10) and is provided with preceding sleeve pipe (4), preceding sleeve pipe (4) are linked together with last round hole (2), the inside of preceding sleeve pipe (4) is provided with flexible syringe needle (5), the surface of flexible syringe needle (5) is provided with outer covering (6), haulage cable (25) run through preceding sleeve pipe (4) and extend to inside, haulage cable (25) are connected with outer covering (6).
  8. 8. An under-cystoscope injection needle according to claim 4, characterised in that the syringe with the medicament is adapted to inject the medicament into the interior of the annular chamber (28) through the medicament injection channel (30) and the third single-port nozzle (293).
  9. 9. An injection needle under a cystoscope according to claim 2, characterized in that the outer surface of the travel sleeve (11) is provided with a slot (37) at a position above the third sliding hole (14), and the slot (37) is adapted to one end of the connecting frame (22).

Description

Injection needle under cystoscope Technical Field The application relates to the technical field of medical instruments, in particular to an injection needle under a cystoscope. Background The application provides a cystoscope injection needle which is a disposable minimally invasive instrument used for accurately injecting medicines to the parts such as a bladder wall, a urethra, a bladder neck, a prostate and the like in a urology cystoscope operation, and has the core structure of a telescopic needle head and a sheath tube, wherein the needle head extends out of the head of the sheath tube to penetrate into the bladder inner wall in the using process, the medicines are input into the bladder wall through a pipeline in the sheath tube and the telescopic needle head, and the same operation can be carried out on the prostate in the same way. Disclosure of Invention The application provides an injection needle under a cystoscope, which has the advantages of accurately controlling the extending amount of a needle head and extending the needle head completely at one time, and is used for solving the problem that the extending amount of the traditional injection needle cannot be controlled. The injection needle under the cystoscope comprises a sheath tube and a shell, wherein a travel sleeve is fixedly arranged at the front end of the shell, a first sliding hole is formed in the top of the outer surface of the travel sleeve, second sliding holes are formed in the two sides of the outer surface of the travel sleeve, a third sliding hole is formed in the bottom of the outer surface of the travel sleeve, a clamping rack is arranged at the position, located on the front side of the third sliding hole, of the inner wall of the travel sleeve, a locking buckle is fixedly arranged at the position, located on the front side of the first sliding hole, of the outer surface of the travel sleeve, a push handle is movably arranged in the shell, pushes the push handle to move towards the inside of the shell and can drive a threaded rod and an injection push rod to synchronously move, a threaded rod is fixedly arranged at the front end of the push handle, an injection push rod is fixedly arranged at the front end of the threaded rod, the front end of the travel sleeve is fixedly connected with the sheath tube, and scales are arranged on the two sides, located on the outer surface of the third sliding hole, of the travel sleeve. Further, the surface of threaded rod is provided with the screw thread, and is equipped with through the thread bush and rotates the sleeve, rotate and offered the annular groove on the position that the sleeve surface is close to one end, slidable mounting has link and connecting plate on the position that the annular inslot is close to both sides respectively, the equal fixed mounting in both sides of link has the pointer, the pointer is corresponding with the scale that stroke sleeve surface is located the third slide hole both sides, the positive fixed mounting of link has the haulage cable, the positive fixed mounting of connecting plate has the card pinion rack, card pinion rack and locking buckle are in the state of joint and only allow the unidirectional movement of card pinion rack. Further, the stroke groove has been seted up to one side of rotating sleeve surface, the annular chamber has been seted up to the one end that the annular groove was kept away from to the rotating sleeve, the annular chamber is linked together with the stroke groove, the inside co-movable installs extrusion device in stroke groove and annular chamber, the opposite side of rotating sleeve surface is provided with the injection passageway, the injection passageway extends to the inside in annular chamber, the inside intercommunication department with the annular chamber of injection passageway is provided with first single mouth that leads to, first single mouth that leads to only allows liquid to pass through first single mouth from the inside of injection passageway. Further, the extrusion device comprises a ring extrusion plate, a mounting round hole is formed in the front face of the ring extrusion plate, a third single-pass nozzle is arranged in the mounting round hole, liquid is only allowed to pass through one side far away from the push rod, the push rod is fixedly arranged at the position, close to one side, of the front face of the ring extrusion plate, and an inserting hole is formed in one side of the push rod; specifically, the annular extrusion plate is arranged at the position of the inner cavity of the annular cavity, which is close to the bottom, the push rod is arranged in the travel groove, and a detachable inserted rod is inserted into the jack. Further, a liquid guide cylinder is movably arranged in the annular cavity, a buckle is fixedly arranged at a position, close to the lower side, of one end of the liquid guide cylinder, a liquid guide channel is formed at a position, close to the left side,