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CN-121987305-A - Uniform speed medicine feeding device

CN121987305ACN 121987305 ACN121987305 ACN 121987305ACN-121987305-A

Abstract

The invention relates to the technical field of medical appliances and discloses a uniform-speed medicine delivery device which comprises a machine bin and medicine delivery mechanisms arranged in the machine bin, wherein an organic cover is arranged at the top of the machine bin, handrails are arranged on the organic cover, the medicine delivery mechanisms are arranged in two groups and are arranged in the machine bin, and each group of medicine delivery mechanisms is used for installing an injector and driving an injector core rod. The medicine feeding mechanism comprises a guide seat, a driving component arranged on the guide seat and a pushing block matched with the injector core rod, wherein the driving component is used for driving the pushing block to move along the guide seat so as to drive the injector core rod to move. One end of the guide seat is provided with a connecting seat, a motor is installed on the connecting seat, the output end of the motor is connected with a screw rod, a threaded transmission fit is formed between the screw rod and the push block, and the push block is driven to move by the motor to drive the screw rod to rotate, so that the injector core rod is pushed to realize liquid pumping or medicine feeding operation.

Inventors

  • YIN YUAN
  • ZHA WANGJIAN
  • SU MEI

Assignees

  • 江苏省人民医院（南京医科大学第一附属医院）

Dates

Publication Date
20260508
Application Date
20260326

Claims (10)

  1. 1. The utility model provides a at uniform velocity send medicine device which characterized in that: Comprises a machine cabin (1) and two groups of drug delivery mechanisms (3) arranged in the machine cabin (1), wherein an organic cover (2) is arranged at the top of the machine cabin (1), and a handrail (21) is arranged above one end of the organic cover (2); the two groups of drug delivery mechanisms (3) are symmetrically arranged in the machine bin (1), and each group of drug delivery mechanisms (3) is used for installing one injector and driving a core rod of the corresponding injector to move so as to realize liquid pumping or drug delivery; the syringes arranged on the two groups of drug delivery mechanisms (3) are respectively communicated with a three-way valve (4), and the three-way valves (4) are used for carrying out flow switching on corresponding pipelines of the two groups of syringes; the three-way valve (4) comprises a valve cabin (41), a valve core (42) is arranged in the valve cabin (41), a sealing piece (43) is sleeved on the valve core (42), and the circulation switching of a pipeline is realized by rotating the valve core (42); the medicine feeding mechanism (3) comprises a guide seat (31), a driving assembly arranged on the guide seat (31) and a pushing block (35) matched with the syringe core rod, wherein the driving assembly is used for driving the pushing block (35) to move along the length direction of the guide seat (31) so as to drive the syringe core rod to move, and the syringe can realize uniform liquid pumping or uniform medicine feeding.
  2. 2. The uniform velocity drug delivery device of claim 1, wherein a positioning groove (412) is formed in the center of the side face of the valve cabin (41), connecting pipes (411) are arranged outside the valve cabin (41), the connecting pipes (411) are distributed at equal intervals around the central axis of the valve cabin (41), and a sealing groove (4121) is formed in the opening end of the positioning groove (412).
  3. 3. The uniform velocity drug delivery device of claim 2, wherein the valve core (42) is arranged in the positioning groove (412), the valve core (42) is provided with a communication hole (421) in a penetrating way, two ends of the communication hole (421) are arranged at 120 degrees, a knob (422) is arranged at the center of the top of the valve core (42), and the top of the valve core (42) is provided with a barrier strip (423).
  4. 4. The uniform velocity drug delivery device of claim 3, wherein the sealing element (43) is buckled on the sealing groove (4121), a limiting hole (431) is formed in the center of the sealing element (43) in a penetrating mode, the knob (422) is inserted into the limiting hole (431), a blocking groove (4311) is formed in the side face of the sealing element (43), the blocking strip (423) is located in the blocking groove (4311), a sealing ring (432) is arranged on the side face of the sealing element (43), and the sealing ring (432) is located in the sealing groove (4121).
  5. 5. The uniform velocity medicine delivery device of claim 1, wherein one end of the guide seat (31) is provided with a connecting seat (311), a motor (33) is installed on the connecting seat (311), the output end of the motor (33) is connected with a screw rod (34), the push block (35) is slidably arranged in the guide seat (31), the push block (35) is provided with a threaded hole (351), and the screw rod (34) penetrates through the threaded hole (351) and is in threaded fit with the push block (35).
  6. 6. The uniform velocity drug delivery device of claim 5, wherein a guide bar (312) is arranged at the top of the guide seat (31), clamping claws (352) are arranged at two sides of the top of the push block (35), and the guide bar (312) is matched with the clamping claws (352) to guide the push block (35) in the moving process of the push block (35).
  7. 7. The uniform velocity drug delivery apparatus as in claim 5, wherein a third positioning groove (353) is formed at the top of the pushing block (35), and the third positioning groove (353) is used for being matched with the injector core rod.
  8. 8. The uniform velocity drug delivery device of claim 5, wherein the guide seat (31) is provided with a first limit groove (313) and a second limit groove (315) for positioning the injector, a clamp (36) is arranged above one end of the guide seat (31), and the clamp (36) is used for pressing and fixing the injector.
  9. 9. The uniform velocity drug delivery device as in claim 8, wherein the two ends of the clip (36) are provided with plug-in posts (361), and a plug-in groove (314) matched with the plug-in posts (361) is arranged above one end of the guide seat (31).
  10. 10. The uniform velocity drug delivery device of claim 1, wherein a protective cover (32) is arranged on the outer side of the drug delivery mechanism (3), and the protective cover (32) is used for protecting a transmission structure of the drug delivery mechanism (3).

Description

Uniform speed medicine feeding device Technical Field The invention belongs to the technical field of medical appliances, and particularly relates to a uniform-speed medicine delivery device. Background In clinical treatment procedures, such as neurology, anesthesia or related medical procedures, it is often necessary to withdraw fluid from the patient via a syringe and to inject the corresponding drug into the patient. In the prior art, most of common modes are that medical staff manually pushes or pulls back the core rod of the injector to complete the operations of liquid drawing and medicine injection. The mode is simple in structure, but in the actual operation process, the extraction or injection process usually depends on manual control of an operator, and the operation process is easily influenced by human factors. In the actual use process, the speed fluctuation often occurs in the process of liquid pumping or drug injection because the syringe is difficult to continuously maintain the stable speed when being manually pushed. When the extraction or injection rate is unstable, not only will the smoothness of the procedure be affected, but discomfort to the patient during the procedure may also be increased. In addition, in part of application scenes in which extraction and injection operations are required to be completed continuously or cooperatively, the stability and repeatability of manual operations are also relatively limited, so that the controllability of medical operations is affected to a certain extent. Disclosure of Invention Aiming at the problems in the prior art, the invention aims to provide a uniform-speed medicine delivery device which can realize stable and controllable propulsion in the use process, so that the injector can keep a relatively stable running state in the liquid pumping or medicine delivery process. In order to achieve the above purpose, the present invention provides the following technical solutions: the uniform-speed medicine feeding device comprises a machine cabin and two groups of medicine feeding mechanisms arranged in the machine cabin, wherein an organic cover is arranged at the top of the machine cabin, and an armrest is arranged above one end of the organic cover; The two groups of medicine delivery mechanisms are symmetrically arranged in the machine cabin, and each group of medicine delivery mechanism is used for installing one injector and driving the core rod of the corresponding injector to move so as to realize liquid pumping or medicine delivery; the syringes arranged on the two groups of medicine delivery mechanisms are respectively communicated with a three-way valve, and the three-way valves are used for carrying out circulation switching on corresponding pipelines of the two groups of syringes; The three-way valve comprises a valve cabin, a valve core is arranged in the valve cabin, a sealing element is sleeved on the valve core, and the circulation switching of the pipeline is realized by rotating the valve core; The medicine feeding mechanism comprises a guide seat, a driving assembly arranged on the guide seat and a pushing block matched with the syringe core rod, wherein the driving assembly is used for driving the pushing block to move along the length direction of the guide seat, so that the syringe core rod is driven to move, and the syringe can realize uniform liquid pumping or uniform medicine feeding. Further, a positioning groove is formed in the center of the side face of the valve cabin, connecting pipes are arranged outside the valve cabin and distributed at equal intervals around the central axis of the valve cabin, and a sealing groove is formed in the opening end of the positioning groove. Further, the valve core is arranged in the positioning groove, the valve core is provided with a communication hole in a penetrating mode, two ends of the communication hole are arranged in an angle mode, a knob is arranged at the center of the top of the valve core, and a barrier strip is arranged at the top of the valve core. Further, the sealing piece lock is on the seal groove, and the center department of sealing piece runs through and has seted up spacing hole, the knob inserts in spacing hole, the baffle groove has been seted up to the side of sealing piece, the blend stop is located the baffle inslot, the side of sealing piece is provided with the sealing washer, the sealing washer is located the seal groove. Further, the one end of guide holder is provided with the connecting seat, installs the motor on the connecting seat, and the output of motor is connected with the lead screw, the ejector pad slides and sets up in the guide holder, has seted up the screw hole on the ejector pad, the lead screw runs through the screw hole and with ejector pad screw thread fit. Further, the top of guide holder is provided with the gib block, the top both sides of ejector pad are provided with the screens claw, the gib block cooperates with the scre