CN107137791B - Double-injector linkage fixing device - Google Patents
Double-injector linkage fixing device Download PDFInfo
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- CN107137791B CN107137791B CN201710378610.9A CN201710378610A CN107137791B CN 107137791 B CN107137791 B CN 107137791B CN 201710378610 A CN201710378610 A CN 201710378610A CN 107137791 B CN107137791 B CN 107137791B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000009471 action Effects 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims description 30
- 238000002347 injection Methods 0.000 claims description 30
- 230000009977 dual effect Effects 0.000 claims description 25
- 238000007599 discharging Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000084 colloidal system Substances 0.000 abstract 1
- 208000009911 Urinary Calculi Diseases 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 230000002485 urinary effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 206010003445 Ascites Diseases 0.000 description 2
- 206010007027 Calculus urinary Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010067268 Post procedural infection Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 238000002504 lithotomy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/64—Containers with integrated suction means
- A61M1/67—Containers incorporating a piston-type member to create suction, e.g. syringes
-
- A61M1/0058—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0233—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs
- A61M3/0254—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped
- A61M3/0262—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped manually, e.g. by squeezing a bulb
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0279—Cannula; Nozzles; Tips; their connection means
- A61M3/0283—Cannula; Nozzles; Tips; their connection means with at least two inner passageways, a first one for irrigating and a second for evacuating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2209/00—Ancillary equipment
- A61M2209/08—Supports for equipment
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The application discloses a double-syringe linkage fixing device, which comprises a fixing mechanism, wherein the fixing mechanism is provided with a fixing groove for fixing two syringe shells; and the linkage mechanism comprises a pulling piece arranged on the fixing frame, the pulling piece is a guide rod or a pull rope, two ends of the pulling piece are connected with the push-pull rods of the two syringes, and when the push-pull rod of any syringe is pushed or pulled out, the push-pull rod of the other syringe is pulled out or pushed in under the action of the pulling piece. The fixing mechanism can fix the shells of the two syringes through the fixing groove, the two syringes can be alternatively linked through the traction piece in the linkage mechanism, and continuous water drawing and water discharging of the double syringes can be realized by combining the water drawing colloid component. The double-syringe linkage fixing device can be repeatedly used, and only the syringe is required to be replaced when the double-syringe linkage fixing device is used, so that the production cost of the instrument can be effectively reduced, and meanwhile, the sanitary problem of repeated use of the syringe can be effectively avoided.
Description
Technical Field
The application belongs to the technical field of medical instruments, and particularly relates to a double-syringe linkage fixing device.
Background
Urinary calculus is one of the most common diseases in urinary surgery, has a prevalence rate of 1% -20%, is easy to relapse, is a benign disease, but can cause urinary system infection, urinary water accumulation and even kidney function damage, and is a benign disease which causes great threat to health.
Minimally invasive treatment of urinary calculi has become a conventional means for current urinary calculi treatment, and more than 90% of urinary calculi surgery can be treated in a minimally invasive manner in some larger medical centers in China. However, the operation itself may cause injury to the patient, for example, an increase in the operation time may result in an increased risk of post-operative infection to the patient. Therefore, the method shortens the operation time and improves the operation efficiency, which is one of the important directions of the current research of the minimally invasive therapeutic instruments in the urinary tract stone cavities.
In the operation of the minimally invasive treatment in the urinary system stone cavity, an assistant is required to assist a doctor of the main knife in performing 'water injection' operation so as to keep the visual field of the operation clear and facilitate the operation of the doctor of the main knife. Firstly, a nurse is required to cut off a large sterile physiological saline bag, and part of the sterile physiological saline bag is poured out for standby in a sterile container on an operating table, so that the working load of the nurse is increased, the risk of pollution of sterile liquid is greatly increased, the risk of surgical infection is increased, and a great potential safety hazard exists; the surgical assistant uses two large-capacity syringes to pump water in the container into the syringes and alternately uses the syringes to perform water injection operation; the continuous and instant requirement on water injection of an assistant is high in the process of lithotripsy or lithotripsy of an operation, and the fact that two injectors are used alternately in the prior art means that the operation process is slow due to intermittent water injection; when a large amount of continuous water injection is needed in the operation, a second assistant is often needed to assist in pumping water to meet the operation continuity requirement; in a word, the existing endoscope has many unfavorable factors such as inefficiency, manpower consumption and infection risk increase in the continuous flushing process, and a safe, efficient and simple-to-operate medical continuous water injector is urgently needed to be put into clinical application, so that the clinical working efficiency is improved and the safety of patients is ensured.
The patent publication numbers WO 87/06455, US3957052 and US2009/0062741 disclose several kinds of injectors, which are to add a branch pipe on one side of the injector head for drawing injection liquid or ascites, and to set a spring check valve, a diaphragm check valve or a steering valve in the pipe orifice of the branch pipe and the outlet of the injector head, to control the pipe orifice of the branch pipe to be only in or out, and the outlet of the injector head to be only out or not in. The syringes can be used for sucking injection or ascites without disassembling the syringes, and the phenomenon of suck-back can not occur. The prior art (application number: CN210510422228.5, publication number: CN 105107047A) discloses a lumen flusher which is similar in principle to the several syringes described above, and which uses a bi-directional check valve to avoid suck-back, and which can control the flow rate of fluid by pressing the push rod at a frequency. The above-mentioned several syringes or inner cavity flushers can solve the trouble time consuming problem of pumping and water injection switching operation, reduced aseptic liquid contaminated risk, however in such cyclic operation process of pumping-water injection, the intermittent type can appear between pumping or the water injection necessarily, belongs to the pulse and draws out water, and water injection flow and pressure's stability and continuity are not high. In addition, when the inner cavity flusher is used, an operator pushes the push rod, so that the resistance of drainage and the pressure of vacuum are overcome at the same time, and the operation is very laborious. Meanwhile, when an operator needs to inject water through an operation, the resistance of the push rod judges the amount of water injection, so that the push rod thrust is coupled with vacuum pressure, and the control of the operator on the water injection is not facilitated.
To solve the above problems, the present inventors have provided a dual chamber continuous injector in the prior patent application (application No. 201710146116. X) comprising a dual chamber syringe having one closed-end cylinder or two closed-end cylinders, each cylinder having a piston sealingly slidably mounted therein, each piston being connected to a core rod extending axially from the cylinder end; the double-cavity needle cylinder comprises two cavities which can be alternately telescopic; and the water drawing and discharging alternate assembly comprises two water drawing ports, two water outlets and a control which is coupled with the water drawing ports and the water outlets and used for controlling the water drawing ports and the water outlet switches. The two inner cavities in the double-cavity continuous water injector are alternately stretched at the same time, the flow direction of water drawing and discharging is controlled by the water drawing and discharging alternating assembly, and the two inner cavities can draw water through the two water drawing ports in turn and continuously and outwards inject water through the two water outlets in turn.
Disclosure of Invention
Aiming at the problems that the operation of pumping and water injection switching of the minimally invasive treatment in the urinary system lithotomy cavity is tedious and time-consuming, the application aims to provide the double-syringe fixing device, wherein the double-syringe fixing device can be used for fixing two common syringes, the continuous pumping and water injection functions can be realized, and the replaceable syringes can be repeatedly used.
The double-syringe linkage fixing device of the application comprises:
the fixing mechanism is provided with a fixing groove for fixing the two syringe shells; and
the linkage mechanism comprises a pulling piece arranged on the fixing frame, two ends of the pulling piece are connected with the push-pull rods of two syringes, and when the push-pull rod of any syringe is pushed or pulled out, the push-pull rod of the other syringe is pulled out or pushed in under the action of the pulling piece;
when the two syringes are reversely fixed, the traction piece comprises at least one linear guide rod, and two ends of the guide rod are respectively connected with the rear ends of the push-pull rods of the two syringes through connecting pieces;
when two syringes are fixed in the same direction, the pulling piece is a pulling rope, the linkage mechanism further comprises a pulley, the pulley is fixed on the fixing mechanism and located at the middle position of the rear ends of the two syringe shells, the pulling rope is wound on the pulley, and two ends of the pulling rope are connected with the front ends of the push-pull rods of the two syringes respectively.
In some preferred embodiments of the present application, the fixing mechanism is a fixing block, the fixing groove includes two U-shaped grooves which are arranged at one side of the fixing block and can accommodate the syringe casing, the rear end of the U-shaped groove is provided with a clamping groove, and the clamping groove is matched with the end cap at the rear end of the syringe.
When the two injectors are reversely fixed, preferably, the two U-shaped grooves are opposite in direction, and the rear ends of the two U-shaped grooves respectively support against the two ends of the fixed block; the front ends of the two U-shaped grooves are respectively provided with a water-related opening, and the positions of the water-related openings correspond to the injection openings of the injectors and transversely penetrate to the other side of the fixed block; the guide rod movably penetrates through the fixing block and is parallel to the U-shaped groove, the connecting piece comprises a connecting rod and a syringe handle retaining cover, the connecting rod is perpendicularly connected to two ends of the guide rod, the syringe handle retaining cover is fixedly arranged on the connecting rod and opposite to the rear end of the U-shaped groove, a syringe handle retaining groove is formed in the syringe handle retaining cover, and the syringe handle retaining groove is matched with a handle at the end part of the syringe push-pull rod.
Further, the two U-shaped grooves are parallel up and down; the traction piece comprises three guide rods, the three guide rods are respectively positioned at the upper side, the lower side and the middle of the two U-shaped grooves, and two ends of the three guide rods are respectively connected into a whole through the connecting rods.
Furthermore, four three-way pipes are embedded on the other side surface of the fixed block, the four three-way pipes are sequentially connected and provided with one-way valves therebetween, wherein the remaining ports of the two three-way pipes are connected with the injection ports of the two syringes through the wading ports, and the remaining ports of the other two three-way pipes are respectively connected with the outside as water drawing ports and water outlets.
Furthermore, the two ends of the fixed block are provided with hand-held frames. Preferably, the handheld frame is T-shaped and is arranged at the middle positions of two ends of the fixed block.
When the two injectors are reversely fixed, it is also preferable that the two U-shaped grooves are positioned on the same straight line and are oppositely arranged, and the front ends of the two U-shaped grooves are positioned in the middle of the fixed block; the traction piece comprises two guide rods, the two guide rods are respectively positioned on the upper side and the lower side of the U-shaped groove, and two ends of the two guide rods are respectively connected into a whole through the connecting rods.
When the two injectors are fixed in the same direction, preferably, the two U-shaped grooves are arranged in the same direction, and the front ends and the rear ends of the two U-shaped grooves are flush up and down; the pulley is arranged at the middle position of the rear end of the fixed block.
In other preferred embodiments of the present application, the fixing mechanism is a fixing frame, the fixing frame is provided with two fixing heads and two fixing clips, the fixing heads protrude forward to form a circular groove matched with the front end of the injector, and an outlet is arranged in the circular groove for the injection port of the injector to pass through; an annular clamping groove matched with the end cap at the rear end of the injector is formed in the fixed clamp; the two fixing heads and the two fixing clamp grams are respectively and correspondingly formed into two pairs in front and back, and the circular groove and the annular clamp groove are matched to form the fixing groove for fixing the syringe shell; the two fixing heads are connected with the corresponding fixing clamp through an upper telescopic guide rod and a lower telescopic guide rod respectively; the whole fixed framework is transversely separated from the middle to form an upper part and a lower part which can be split, and the upper part and the lower part are fixedly connected through screws, hinges or buckles.
When the two syringes are fixed in the same direction, the two fixing heads are arranged at the front end of the fixing framework and are connected side by side, and the two corresponding fixing clamps are arranged at the rear end of the fixing framework and are connected side by side; the pulley is arranged between the two fixed shells.
When two syringes are reversely fixed, one end of the fixed framework is provided with a fixed head and a fixed clamp, the other end of the fixed framework is provided with the same, and the fixed framework can be additionally provided with a guide rail for installing the guide rod.
The application has the beneficial effects that:
1. in the double-syringe linkage fixing device, the fixing mechanism can fix the shells of the two syringes through the fixing groove, and when the push-pull rod of any syringe is pushed or pulled out through the pulling piece in the linkage mechanism, the push-pull rod of the other syringe is pulled out or pushed in under the action of the pulling piece, so that the two syringes can be alternately linked through one operation. By connecting the tee pipe and the one-way valve or drawing water from the alternate assembly, the two injectors can realize continuous alternate drawing water when in alternate linkage.
2. The double-syringe linkage fixing device can be repeatedly used, and only the syringe is required to be replaced when the double-syringe linkage fixing device is used, so that the production cost of the instrument can be effectively reduced, and meanwhile, the sanitary problem of repeated use of the syringe can be effectively avoided.
Drawings
FIG. 1 is a front perspective view of a dual syringe linkage fixture of embodiment 1 of the present application;
FIG. 2 is a schematic rear perspective view of a dual syringe linkage fixture of embodiment 1 of the present application;
FIG. 3 is a schematic diagram showing the disassembly of the dual syringe linkage fixture of embodiment 1 of the present application;
FIG. 4 is a front view of the fixing block of the dual syringe linkage fixing device of embodiment 1 of the present application;
FIG. 5 is a front perspective view of a dual syringe linkage fixture of embodiment 2 of the present application;
FIG. 6 is a rear perspective view of a dual syringe linkage fixture of embodiment 2 of the present application;
FIG. 7 is a front view of a dual syringe linkage fixture of embodiment 2 of the present application;
FIG. 8 is a front perspective view of a dual syringe linkage fixture of embodiment 3 of the present application;
FIG. 9 is a perspective view of a dual syringe linkage fixture of embodiment 4 of the present application;
FIG. 10 is a perspective view of a fixing frame of a dual syringe linkage fixing device according to embodiment 4 of the present application;
FIG. 11 is a rear view of the fixing frame of the dual syringe linkage fixing device of embodiment 4 of the present application;
fig. 12 is a top view of the fixing frame of the dual syringe linkage fixing device of embodiment 4 of the present application.
Reference numerals:
syringe 1, syringe housing 101, push-pull rod 102, injection port 103, end cap 104, handle 105;
the device comprises a fixing mechanism 2, a fixing block 210, a U-shaped groove 211, a wading port 212, a clamping groove 213, a guide hole 214, a handheld frame 215 and a three-way pipe 216; a fixed framework 220, a fixed head 221, a circular groove 222, an outlet 223, a fixed clamp 224, an annular clamp groove 225 and a telescopic guide rod 226;
the linkage mechanism 3, the guide rod 301, the connecting rod 302, the syringe handle retaining cover 303 and the syringe handle fixing groove 304; pulley 311, pull rope 312;
and a water drawing-out alternate assembly 4.
Detailed Description
The application is further described below with reference to specific examples and figures. It should be understood that the following examples are illustrative of the present application and are not intended to limit the scope of the present application.
Example 1
Fig. 1 and 2 show a dual syringe linkage fixture (two syringes 1 are already installed) according to a preferred embodiment of the present application, which includes a fixture 2 and a linkage 3. The linkage mechanism 3 is movably arranged on the fixing mechanism 2 in a penetrating way, the syringe shell 101 is fixedly clamped on the fixing mechanism 2, meanwhile, the push-pull rod 102 of the syringe 1 is connected with the linkage mechanism 3, and the whole device is shown in fig. 3 after being detached.
The main body of the fixing mechanism 2 is a fixing block 210, two U-shaped grooves 211 capable of accommodating the syringe housing 101 are arranged on the front side of the fixing block 210, the two U-shaped grooves 211 are parallel up and down and opposite in direction, as shown in fig. 3 and 4, water-involved holes 212 are arranged at the front ends of the two U-shaped grooves 211, and the positions of the water-involved holes 212 correspond to the injection holes 103 at the front end of the syringe housing 101 and transversely penetrate to the rear side of the fixing block 210. The rear ends of the two U-shaped grooves 211 respectively abut against the two ends of the fixed block 210 and are provided with clamping grooves 213, and the clamping grooves 213 are matched with the end caps 104 at the rear end of the syringe housing 101. The fixing blocks 210 are provided with guide holes 214 parallel to the U-shaped grooves 211 at the upper and lower sides and the middle of the two U-shaped grooves 211. The fixed block 210 is provided with a T-shaped hand-held frame 215 at both ends. As shown in fig. 2, four three-way pipes 216 are embedded in the rear side of the fixed block 210, the four three-way pipes 216 are sequentially connected through hoses, the remaining ports of the front three-way pipe 216 and the rear three-way pipe 216 are connected with the injection ports of two syringes through the water-related ports 212, the remaining ports of the other two three-way pipes 216 are respectively connected with the outside from the upper side and the lower side, one is a water drawing port, and the other is a water outlet. A check valve (not shown) is provided between the four three-way pipes 216, so that the two syringes 1 can alternately draw water and discharge water continuously without affecting each other.
The linkage mechanism 3 comprises three guide rods 301, the three guide rods 301 are respectively and movably penetrated in the guide holes 214, and two ends of the three guide rods 301 penetrate out of the fixed block 210 and are connected into a whole through a vertical connecting rod 302. The connecting rod 302 is provided with a syringe handle retaining cap 303 at a position opposite to the rear end of the U-shaped groove 211, the syringe handle retaining cap 303 is provided with a syringe handle fixing groove 304, and the syringe handle fixing groove 304 is matched with the handle 105 at the end part of the push-pull rod 102 of the syringe 1.
In actual use, the syringe housing 101 is clamped in the U-shaped groove 211, the end cap 104 at the rear end of the syringe housing 101 is clamped in the clamping groove 213, the injection port 103 at the front end corresponds to the wading port 212, the injection port 103 can be connected with a hose, and then the hose passes through the wading port 212 to be connected with the three-way pipe 216. When the push-pull rod 102 of any one of the syringes 1 is pushed and pulled, the guide rod 301 connected with the connecting rod 302 can move along the guide hole 214, and then the push-pull rod 102 of the other syringe 1 is carried to move, so that water drawing of one syringe is realized, and water draining of the other syringe is realized.
Example 2
Fig. 5 to 7 show a dual syringe linkage fixture (two syringes 1 are already installed) according to another preferred embodiment of the present application, which also includes a fixture 2 and a linkage 3, and is further provided with a water drawing alternate assembly 4, compared to embodiment 1. The difference from embodiment 1 is that the main body fixing block 210 of the fixing mechanism 2 is longer, and the two U-shaped grooves on the front side of the fixing block 210 are oppositely arranged on the same straight line, so that the two syringes 1 can be installed and fixed on the same straight line relatively, the front ends of the two U-shaped grooves are positioned in the middle of the fixing block, and the water-involving ports 212 on the front ends of the two U-shaped grooves penetrate out to the rear side of the fixing block 210. Through the water-related port 212, the injection port of the injector 1 can be connected with the water drawing alternate assembly 4 through a hose; in addition, the fixing block 210 only needs to be provided with two guide holes, and the two guide holes are respectively positioned on the upper side and the lower side of the two U-shaped grooves. The corresponding linkage 3 includes two guide rods 301. The connecting rod 302 is also relatively short, almost overlapping the syringe handle fixation slot 304.
The principle of the fixed linkage is almost the same as that of the embodiment 1, when the push-pull rod 102 of any one syringe 1 is pushed and pulled in the same way, the guide rod 301 connected with the connecting rod 302 can move along the guide hole, and then the push-pull rod 102 of the other syringe 1 is carried to move, so that water drawing of one syringe is realized, and water draining of the other syringe is realized.
For realizing the continuous water drawing and water discharging of the two syringes 1 alternately, the water drawing and discharging alternate assembly 4 can be a commercially available two-position four-way electromagnetic directional valve, a manual directional valve, a motor directional valve, a three-position four-way electromagnetic directional valve, a manual directional valve, a motor directional valve and the like, and the prior patent application (application number 201710146116. X) can be referred to specifically.
Example 3
Fig. 8 shows a dual syringe linkage fixture (two syringes 1 are installed) according to another preferred embodiment of the present application, which is different from embodiment 1 in that two U-shaped grooves 211 are disposed in the same direction, and the front and rear ends of the two U-shaped grooves 211 are flush up and down.
The linkage mechanism 3 is composed of a pulley 311 and a pull rope 312, the pulley 311 is fixedly arranged at the middle position of the rear end of the fixed block 210, the pull rope 312 is wound on the pulley 311, and two ends of the pull rope 312 are respectively connected with the front end of the push-pull rod 102 of the injector 1.
In actual use, after the two syringes 1 are clamped in the two U-shaped grooves 211, the injection port 103 at the front end can be used for sucking injection liquid or other liquid to be sucked through a hose, and can also be connected with the water drawing alternating assembly 4 through a hose. When the push-pull rod 102 of any one syringe 1 is pushed in, the pull rope 312 moves along with the push-pull rod 102 of the other syringe 1, the push-pull rod 102 pulled out is pushed in after the push-pull rod is taken out, the push-pull rod 102 pushed in before is pulled out along with the push-pull rod, so that water drawing of one syringe is realized, and meanwhile, the other syringe is drained, and water drawing and water discharging are alternately and repeatedly carried out.
Example 4
Fig. 9 shows a dual-syringe linkage fixing device (two syringes 1 are installed) according to another preferred embodiment of the present application, the main body of the fixing mechanism is a fixing skeleton 220, the fixing skeleton 220 is shown in fig. 10-12, two fixing heads 221 connected side by side are arranged at the front end of the fixing skeleton 220, the fixing heads 221 are protruded forward to form a circular groove 222 matched with the front end of the syringes, an outlet 223 is arranged in the circular groove 222 for the injection port of the syringes to pass through, two fixing clamping blocks 224 connected side by side are arranged at the rear end of the fixing skeleton 220, and an annular clamping groove 225 matched with the end cap 104 at the rear end of the syringe 1 is arranged in the fixing clamping blocks 224; the circular groove 222 and the annular clamping groove 225 form a fixing groove for fixing the syringe 1; the two fixing heads 221 and the corresponding fixing clamp 224 are respectively connected through an upper telescopic guide rod 226 and a lower telescopic guide rod 226. As shown in fig. 11, the entire fixing frame 220 is laterally divided from the middle to form upper and lower detachable parts, which are fixed by screws, hinges or snap connections. When the syringe 1 is assembled, the upper and lower parts of the fixing frame 220 are separated, the syringe 1 is clamped on the lower half part or the upper half part of the fixing frame, then the other half part is closed, and then the fixing is carried out.
The linkage structure is the same as that of the embodiment 3, and consists of a pulley 311 and a pull rope 312, wherein the pulley 311 is fixedly arranged between two fixed clamps, the pull rope 312 is wound on the pulley 311, and two ends of the pull rope 312 are respectively connected with the front end of the push-pull rod 102 of the injector 1. The working principle of the fixed linkage and the alternate water drawing is the same as that of the embodiment 3. Moreover, the length of the telescopic guide rod 226 can be adjusted when the telescopic guide rod stretches, and the telescopic guide rod is applicable to syringes of different sizes.
In addition, by modifying embodiment 4, two opposite syringes can be fixed by changing the position of one of the fixing heads 221 and the corresponding fixing clamp 224, and the linkage mechanism can be modified from the structure of embodiment 1, and of course, corresponding supporting components, such as a guide rail for installing a guide rod, a handheld frame, etc., can be added on the fixing frame 220.
The above embodiments show different mounting modes of two syringes, including up-down parallel and on the same straight line, and the same direction or opposite direction, wherein the fixing mechanism is a fixing block or a fixing skeleton, and the alternate linkage of the syringes is realized by a guide rod or a pull rope, so that the alternate linkage of the two syringes can be realized, namely, when the push-pull rod of any syringe is pushed or pulled, the push-pull rod of the other syringe is pulled or pushed under the action of the pulling piece. By connecting the tee pipe and the one-way valve or drawing water from the alternate assembly, the two injectors can realize continuous alternate drawing water when in alternate linkage. The above embodiments can be repeatedly used, and only the syringe is required to be replaced when the syringe is used, so that the production cost of the instrument can be effectively reduced, and meanwhile, the sanitary problem of repeated use of the syringe can be effectively avoided.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. A dual syringe linkage fixture, comprising:
the fixing mechanism is provided with a fixing groove for fixing the two syringe shells; and
the linkage mechanism comprises a pulling piece arranged on the fixing mechanism, two ends of the pulling piece are connected with the push-pull rods of two syringes, and when the push-pull rod of any syringe is pushed or pulled out, the push-pull rod of the other syringe is pulled out or pushed in under the action of the pulling piece;
when the two syringes are reversely fixed, the traction piece comprises at least one linear guide rod, and two ends of the guide rod are respectively connected with the rear ends of the push-pull rods of the two syringes through connecting pieces;
when two syringes are fixed in the same direction, the pulling piece is a pulling rope, the linkage mechanism further comprises a pulley, the pulley is fixed on the fixing mechanism and located at the middle position of the rear ends of the two syringe shells, the pulling rope is wound on the pulley, and two ends of the pulling rope are connected with the front ends of the push-pull rods of the two syringes respectively.
2. The dual syringe linkage fixing device as claimed in claim 1, wherein the fixing mechanism is a fixing block, the fixing groove comprises two U-shaped grooves which are arranged on one side of the fixing block and can accommodate a syringe shell, the rear ends of the U-shaped grooves are provided with clamping grooves, and the clamping grooves are matched with end caps at the rear ends of the syringes.
3. The dual syringe linkage fixing device according to claim 2, wherein when two syringes are reversely fixed, the two U-shaped grooves are opposite in direction and the rear ends of the two U-shaped grooves respectively abut against the two ends of the fixing block; the front ends of the two U-shaped grooves are respectively provided with a water-related opening, and the positions of the water-related openings correspond to the injection openings of the injectors and transversely penetrate to the other side of the fixed block; the guide rod movably penetrates through the fixing block and is parallel to the U-shaped groove, the connecting piece comprises a connecting rod and a syringe handle retaining cover, the connecting rod is perpendicularly connected to two ends of the guide rod, the syringe handle retaining cover is fixedly arranged on the connecting rod and opposite to the rear end of the U-shaped groove, a syringe handle retaining groove is formed in the syringe handle retaining cover, and the syringe handle retaining groove is matched with a handle at the end part of the syringe push-pull rod.
4. The dual syringe linkage fixture of claim 3 wherein two of said U-shaped slots are parallel up and down; the traction piece comprises three guide rods, the three guide rods are respectively positioned at the upper side, the lower side and the middle of the two U-shaped grooves, and two ends of the three guide rods are respectively connected into a whole through the connecting rods.
5. The double-injector linkage fixing device according to claim 4, wherein four three-way pipes are embedded on the other side surface of the fixing block, the four three-way pipes are sequentially connected and provided with one-way valves therebetween, wherein the remaining ports of two three-way pipes are connected with the injection ports of two injectors through the wading ports, and the remaining ports of the other two three-way pipes are respectively connected with the outside as a water drawing port and a water outlet.
6. The dual syringe linkage fixture of claim 4 wherein the fixture blocks are provided with hand-held frames at both ends.
7. The dual syringe linkage fixing device as claimed in claim 3, wherein the two U-shaped grooves are positioned on the same straight line and are oppositely arranged, and the front ends of the two U-shaped grooves are positioned in the middle of the fixing block; the traction piece comprises two guide rods, the two guide rods are respectively positioned on the upper side and the lower side of the U-shaped groove, and two ends of the two guide rods are respectively connected into a whole through the connecting rods.
8. The dual syringe linkage fixing device according to claim 2, wherein when the two syringes are fixed in the same direction, the two U-shaped grooves are arranged in the same direction, and the front ends and the rear ends of the two U-shaped grooves are flush up and down; the pulley is arranged at the middle position of the rear end of the fixed block.
9. The dual syringe linkage fixing device as claimed in claim 1, wherein the fixing mechanism is a fixing framework, the fixing framework is provided with two fixing heads and two fixing clamping shells, the fixing heads are protruded forward to form a circular groove matched with the front end of the syringe, and an outlet is arranged in the circular groove for the injection port of the syringe to pass through; an annular clamping groove matched with the end cap at the rear end of the injector is formed in the fixed clamping shell; the two fixing heads and the two fixing clamping shells are respectively and correspondingly formed into two pairs in front and back, and the circular groove and the annular clamping groove are matched to form the fixing groove for fixing the syringe shell; the two fixing heads are connected with the corresponding fixing clamping shells through an upper telescopic guide rod and a lower telescopic guide rod respectively; the whole fixed framework is transversely separated from the middle to form an upper part and a lower part which can be split, and the upper part and the lower part are fixedly connected through screws, hinges or buckles.
10. The dual-syringe linkage fixing device according to claim 9, wherein when two syringes are fixed in the same direction, two fixing heads are arranged at the front end of the fixing framework and connected side by side, and two corresponding fixing clamping shells are arranged at the rear end of the fixing framework and connected side by side; the pulley is arranged between the two fixed shells.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710378610.9A CN107137791B (en) | 2017-05-25 | 2017-05-25 | Double-injector linkage fixing device |
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| CN201710378610.9A CN107137791B (en) | 2017-05-25 | 2017-05-25 | Double-injector linkage fixing device |
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| CN107137791A CN107137791A (en) | 2017-09-08 |
| CN107137791B true CN107137791B (en) | 2023-11-17 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108175926B (en) * | 2017-12-29 | 2021-02-23 | 鄂东医疗集团市中心医院(市普爱医院、湖北理工学院附属医院) | Novel urethra ware of dosing for uropoiesis surgery |
| CN108478892B (en) * | 2018-03-09 | 2020-12-22 | 无锡市人民医院 | Enema washing unit is exclusively used in clinical surgery |
| CN108744075B (en) * | 2018-04-13 | 2020-10-30 | 中国人民解放军陆军军医大学第一附属医院 | Fixing device for syringe drainage |
| CN109091211A (en) * | 2018-08-31 | 2018-12-28 | 宝鸡市中医医院 | A kind of auxiliary minimally invasive spine surgical positioning system |
| CN111329598A (en) * | 2018-12-19 | 2020-06-26 | 上海康路联医疗科技有限公司 | Liquid injection device |
| CN117357717A (en) * | 2023-10-27 | 2024-01-09 | 首都医科大学附属北京潞河医院 | Synchronous suction and discharge device for fluid |
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