CN213252433U

CN213252433U - Indwelling urethral catheterization device

Info

Publication number: CN213252433U
Application number: CN202020454096.XU
Authority: CN
Inventors: 丁伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-05-25
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a keep somewhere type urethral catheterization device belongs to medical utensil field, and it includes notes liquid mouth and the priming device of catheter utricule, and the priming device is including annotating liquid barrel, actuating mechanism, detent and screwed joint, annotates liquid barrel bottom and screwed joint fixed connection, annotates the piston that is equipped with swing joint in the liquid barrel, and actuating mechanism is used for driving the piston motion, and detent is used for cooperating actuating mechanism in order to inject current piston position. The aim of preventing the liquid in the urinary catheter sac from flowing back when the urinary catheter is in a standing state is achieved.

Description

Indwelling urethral catheterization device

Technical Field

The utility model relates to a medical apparatus field especially relates to a keep somewhere type catheterization device.

Background

A urinary catheter is a tube that is inserted into the bladder from the urethra to drain urine. The catheter is a pipeline made of natural rubber, silicon rubber or polyvinyl chloride (PVC), can be inserted into the bladder through the urethra so as to drain urine, after the catheter is inserted into the bladder, an air bag is arranged at the end close to the end of the catheter to fix the catheter to stay in the bladder and not to be separated easily, and the drainage tube is connected with a urine bag to collect urine.

In actual operation, the operation of installing the catheter is complicated, and doctors or nurses need to disinfect and then complete the placement of the catheter of patients. The catheter balloon must then be inflated to prevent the catheter from slipping out of the patient. After the catheter is placed in a patient body, a medical worker needs to press the lower abdominal part of the patient with one hand, and the other hand of the operation equipment injects fluid into an injection port of the catheter so as to expand the catheter balloon, when the catheter is removed, the fluid in the catheter balloon still needs to be led out with one hand, so that the water ball retracts to the original state, and the urinary catheter is guaranteed to be smoothly removed from the bladder of the patient.

In the in-service use process, because of the catheter utricule has certain elasticity, the catheter utricule is internal to be filled up liquid and stops in the internal back of patient, can appear the phenomenon of the internal liquid backward flow of catheter utricule for the volume of catheter utricule reduces, thereby can't make the catheter card internal at the patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an indwelling urethral catheterization device which has the advantage of preventing the liquid in the urinary catheter sac from flowing back.

In order to realize the purpose, the utility model discloses a technical scheme is: an indwelling type urethral catheterization device comprises a liquid injection port of a urethral catheter bag body and a liquid injection device, wherein the liquid injection device comprises a liquid injection cylinder body, a driving mechanism, a stop mechanism and a threaded joint, the bottom end of the liquid injection cylinder body is fixedly connected with the threaded joint, and a movably connected piston is arranged in the liquid injection cylinder body;

the driving mechanism comprises a rack, a driven gear and a driving wheel, the driven gear and the driving wheel are coaxially arranged, the diameter of the driving wheel is larger than that of the driven gear, one end of the rack is connected with the end, far away from the threaded connector, of the piston, the rack is meshed with the driven gear, a connecting rod is fixedly arranged on the inner wall of the liquid injection cylinder, the driving wheel is rotatably sleeved on the connecting rod, and an opening for allowing the driving wheel to partially penetrate out is formed in the side wall of the liquid injection cylinder;

the stop mechanism comprises a rotating plate hinged to the side wall of the liquid injection cylinder, a clamping block arranged on the rotating plate and used for being clamped between the teeth of the driven gear, and a torsion spring used for enabling the rotating plate to have a tendency of rotating towards the direction of the driven gear.

Preferably, the surface of the fixture block, which is used for contacting with the driven gear, is an arc surface.

Preferably, the free end of the rotating plate is hinged with a pulling rod, and a through hole for allowing one end, far away from the rotating plate, of the pulling rod to penetrate out is formed in the side wall of the liquid injection cylinder.

Preferably, one end of the pulling rod outside the liquid injection cylinder body is provided with a pulling ring.

Preferably, the cambered surface of the driving wheel is provided with anti-skid lines.

Preferably, the outer side wall of the liquid injection cylinder is provided with scale marks, and the region of the liquid injection cylinder provided with the scale marks is arranged in a transparent shape.

Preferably, annotate the liquid barrel and divide into first barrel and second barrel, the piston sets up in first barrel, driven gear and drive wheel set up in the second barrel, the end wall of first barrel is provided with the boss of pegging graft with the second barrel, the lateral wall of boss is provided with the round recess, be provided with on the second barrel with recess complex flange, be provided with the locating piece on the boss, seted up on the second barrel with the locating piece cooperation, make driven gear and rack toothing's constant head tank.

Compared with the prior art, the utility model has the advantages of:

firstly, the phenomenon of liquid backflow in the urinary catheter sac body is effectively prevented;

secondly, the structure is simple, and the operation is easy;

thirdly, the driving mechanism can be used for multiple times, and waste is reduced.

Drawings

FIG. 1 is a schematic view of the structure of example 1;

FIG. 2 is a schematic sectional view of the liquid injection device according to example 1;

FIG. 3 is a schematic view showing a fitting structure of a driven gear, a driving wheel and a rack in embodiment 1;

FIG. 4 is a schematic view showing an external structure of a liquid injection device according to example 1;

FIG. 5 is a schematic sectional view of the liquid injection device according to example 2;

fig. 6 is an enlarged view of a portion a of fig. 5.

In the figure: 1. a catheter balloon; 11. a liquid injection port; 2. a liquid injection device; 21. a liquid injection cylinder; 211. a first cylinder; 2111. a boss; 2112. a groove; 2113. positioning blocks; 212. a second cylinder; 2121. a flange; 2122. positioning a groove; 22. a drive mechanism; 221. a rack; 222. a driven gear; 223. a drive wheel; 224. a connecting rod; 225. an opening; 23. a stop mechanism; 231. a rotating plate; 232. a clamping block; 233. a torsion spring; 234. pulling a rod; 235. a through hole; 236. a pull ring; 24. a threaded joint; 25. a piston.

Detailed Description

The present invention will be further explained below.

Example 1:

as shown in figures 1 and 2, the indwelling type urethral catheterization device comprises a liquid injection port 11 of a urethral catheter capsule 1 and a liquid injection device 2, wherein the liquid injection device 2 comprises a liquid injection barrel body 21, a driving mechanism 22, a stop mechanism 23 and a threaded joint 24 (threads on the threaded joint 24 are not shown in the figure). Annotate liquid barrel 21 bottom and threaded joint 24 fixed connection, threaded joint 24 is used for being connected with the notes liquid mouth 11 of catheter utricule 1, adopts threaded connection's mode to make priming device 2 in this application be difficult to under the effect of no external force with the notes liquid mouth 11 separation of catheter utricule 1. Annotate the liquid barrel 21 and be equipped with swing joint's piston 25 in, piston 25's setting will annotate and cut apart into two parts in the liquid barrel 21, and one part is used for adorning the liquid of input catheter utricule 1, and another part is used for installing actuating mechanism 22 that drive piston 25 removed, annotates the lateral wall of liquid barrel 21 splendid attire liquid part and still is provided with the scale mark, and the part that sets up the scale mark is the transparence to the amount of liquid in the liquid barrel 21 is annotated to the understanding that operating personnel can be clear.

As shown in fig. 2 and 3, the driving mechanism 22 includes a rack 221, a driven gear 222, and a driving wheel 223. The driven gear 222 and the driving wheel 223 are coaxially arranged, the inner wall of the liquid injection cylinder 21 is fixedly provided with a connecting rod 224, and the driving wheel 223 is rotatably sleeved on the connecting rod 224. One end of the rack 221 is fixedly connected with the piston 25 away from the threaded joint 24, for example, by bonding or integrally manufacturing, the rack 221 is meshed with the driven gear 222, and in the embodiment, the connecting rod 224 is further provided with a projection for limiting the position of the driven gear 222 and the driving wheel 223 on the connecting rod 224. The operator rotates the driven gear 222 by rotating the driving wheel 223. As shown in fig. 2 and 3, in order to facilitate the operator to rotate the driven gear 222 to drive the rack 221, i.e. the piston 25, to move, the diameter of the driving wheel 223 is set to be larger than that of the driven gear 222, the side wall of the liquid injection cylinder 21 is provided with an opening 225 for the driving wheel 223 to partially penetrate out, and the operator only needs to toggle the driving wheel 223 to be located outside the liquid injection cylinder 21. The cambered surface of the driving wheel 223 is provided with anti-skidding lines, so that the simple friction force between the driving wheel 223 and an operator is increased, and the skidding phenomenon is prevented.

As shown in fig. 1, the stopping mechanism 23 includes a rotating plate 231 hinged on the side wall of the liquid injection cylinder 21, a latch 232 disposed on the rotating plate 231 for latching between the teeth of the driven gear 222, and a torsion spring 233 for making the rotating plate 231 have a tendency to rotate toward the driven gear 222. The rotating plate 231 is rotated toward the driven gear 222 by the torsion of the torsion spring 233, so that the latch 232 provided on the rotating plate 231 can be latched between the teeth of the driven gear 222, thereby preventing the rotation of the driven gear 222. In order to enable an operator to conveniently stir the driving wheel 223, a surface of the fixture block 232 contacting the driven gear 222 is an arc surface, so that the fixture block 232 is prevented from being clamped between the teeth of the driven gear 222. When the device is used, an external force applied to the driving wheel 223 by an operator enables the teeth on the driven gear 222 to push the clamping block 232, the clamping block 232 drives the rotating plate 231 to rotate to overcome the torsion force applied to the rotating plate 231 by the torsion spring 233, and finally the clamping block 232 leaves the gap between the teeth where the current positioning exists and finally reaches the next adjacent gap under the action of the torsion force of the torsion spring 233. This kind of locking mode not only can effectually prevent that piston 25 from applying the effect of external force and returning away under no operating personnel, can also make things convenient for operating personnel to come to finely tune the volume of infusing into catheter utricule 1 interior liquid according to the number of teeth that fixture block 232 walked.

As shown in fig. 1 and 4, in order to enable an operator to quickly draw a required liquid into the infusion cylinder, one end of the rotating plate 231, which is not connected to the liquid injection cylinder 21, is hinged to a pulling rod 234, and a through hole 235 for allowing one end of the pulling rod 234, which is far away from the rotating plate 231, to penetrate out is formed in a side wall of the liquid injection cylinder 21. When the gear shifting device is used, an operator pulls the pulling rod 234 to enable the clamping block 232 to be no longer clamped between the teeth of the driven gear 222, the driving wheel 223 can be freely shifted at the moment, the driving wheel 223 is no longer interfered by the torsion force of the torsion spring 233, and the speed for shifting the driving wheel 223 by the operator can be obviously increased. In order to facilitate the pulling of the operator, a pulling ring 236 is disposed at one end of the pulling rod 234 outside the liquid injection cylinder 21.

The use process comprises the following steps:

the operator pulls the pull ring 236 to make the block 232 leave the driving gear, and then extends the screw joint 24 into the liquid extraction position, and rotates the driving wheel 223 to make the driving mechanism 22 drive the piston 25 to move, so as to extract the liquid into the liquid injection cylinder 21, thereby completing the liquid extraction step.

The pull ring 236 is loosened by an operator, the threaded connector 24 is connected with the liquid injection port 11 of the catheter capsule 1, and then the driving wheel 223 is rotated, so that the driving device drives the piston 25 to inject the liquid in the liquid injection cylinder 21 into the catheter capsule 1, after the injection is completed, the fixture block 232 is clamped between the teeth on the driven gear 222, the driven gear 222 is effectively prevented from rotating, the piston 25 cannot rotate at the moment under the action of the rack 221, and the effect of preventing the liquid in the catheter capsule 1 from flowing back to the liquid injection cylinder 21 is achieved.

Example 2:

as shown in fig. 5 and 6, the liquid injection cylinder 21 is divided into a first cylinder 211 and a second cylinder 212, the piston 25 is disposed in the first cylinder 211, the driven gear 222 and the driving wheel 223 are disposed in the second cylinder 212, a boss 2111 inserted into the second cylinder 212 is disposed on an end wall of the first cylinder 211, a circle of groove 2112 is disposed on an outer side wall of the boss 2111, a flange 2121 matched with the groove 2112 is disposed on the second cylinder 212, a positioning block 2113 is disposed on the boss 2111, and a positioning groove 2122 matched with the positioning block 2113 is disposed on the second cylinder 212 to enable the driven gear 222 to be meshed with the rack 221.

The liquid injection cylinder 21 is divided into two parts, and the driven gear 222 and the driving wheel 223 are arranged in the second cylinder 212, so that the device in the second cylinder 212 can be repeatedly used for multiple times, and the consumption is reduced. The first cartridge 211 is a disposable consumable, making the device more hygienic.

The installation process comprises the following steps:

the positioning block 2113 of the first cylinder 211 is aligned with the positioning slot 2122 of the second cylinder 212, and then the first cylinder 211 and the second cylinder 212 are connected, and the rack 221 and the driven gear 222 are aligned with each other and can be meshed. The second barrel 212 is then pressed toward the first barrel 211, such that the lip 2121 engages the notch 2112, thereby completing the installation process. The arrangement of the flange 2121 and the groove 2112 makes the first cylinder 211 and the second cylinder 212 not easily separated without external force being applied.

The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; while the invention has been described with reference to specific embodiments and applications, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An indwelling type urethral catheterization device comprises a liquid injection port (11) of a urethral catheter capsule body (1) and a liquid injection device (2), and is characterized in that the liquid injection device (2) comprises a liquid injection cylinder body (21), a driving mechanism (22), a stop mechanism (23) and a threaded connector (24), wherein the bottom end of the liquid injection cylinder body (21) is fixedly connected with the threaded connector (24), and a movably connected piston (25) is arranged in the liquid injection cylinder body (21);

the driving mechanism (22) comprises a rack (221), a driven gear (222) and a driving wheel (223), the driven gear (222) and the driving wheel (223) are coaxially arranged, the diameter of the driving wheel (223) is larger than that of the driven gear (222), one end of the rack (221) is connected with the end, far away from the threaded joint (24), of the piston (25), the rack (221) is meshed with the driven gear (222), a connecting rod (224) is fixedly arranged on the inner wall of the liquid injection cylinder body (21), the driving wheel (223) is rotatably sleeved on the connecting rod (224), and an opening (225) for allowing the driving wheel (223) to partially penetrate through is formed in the side wall of the liquid injection cylinder body (21);

the stop mechanism (23) comprises a rotating plate (231) hinged on the side wall of the liquid injection cylinder body (21), a clamping block (232) arranged on the rotating plate (231) and used for clamping between teeth of the driven gear (222), and a torsion spring (233) used for enabling the rotating plate (231) to have a rotating trend towards the direction of the driven gear (222).

2. The indwelling urinary catheter according to claim 1, wherein the surface of the latch (232) for contact with the driven gear (222) is a curved surface.

3. The indwelling urinary cathether of claim 1, wherein the free end of the rotating plate (231) is hinged to a pulling rod (234), and the side wall of the injection cylinder (21) is provided with a through hole (235) for the pulling rod (234) to pass through, the end of the pulling rod being far away from the rotating plate (231).

4. An indwelling urinary cathether according to claim 3, wherein the pull rod (234) is provided with a pull ring (236) at the end outside the injection cylinder (21).

5. An indwelling urinary catheter according to claim 1, wherein the drive wheel (223) is provided with anti-slip threads on its curved surface.

6. An indwelling urinary catheterization device according to claim 1, wherein the outer side wall of the infusion cylinder (21) is provided with graduation marks, and the area of the infusion cylinder (21) where the graduation marks are provided is transparent.

7. An indwelling urinary catheterization device according to any one of claims 1 to 6, the liquid injection cylinder (21) is divided into a first cylinder (211) and a second cylinder (212), the piston (25) is arranged in the first cylinder (211), the driven gear (222) and the driving wheel (223) are arranged in the second cylinder (212), the end wall of the first cylinder body (211) is provided with a boss (2111) inserted with the second cylinder body (212), the outer side wall of the boss (2111) is provided with a circle of groove (2112), the second cylinder (212) is provided with a flange (2121) matched with the groove (2112), the boss (2111) is provided with a positioning block (2113), and the second cylinder (212) is provided with a positioning groove (2122) which is matched with the positioning block (2113) to enable the driven gear (222) to be meshed with the rack (221).