CN219847647U

CN219847647U - Punching seal pipe

Info

Publication number: CN219847647U
Application number: CN202320904886.7U
Authority: CN
Inventors: 蒲培培; 何宝芬; 魏艳蕾; 鄢丽
Original assignee: China Aerospace Science And Engineering Group 731 Hospital
Current assignee: China Aerospace Science And Engineering Group 731 Hospital
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-10-20
Anticipated expiration: 2033-04-20

Abstract

The utility model discloses a punching and sealing pipe, which comprises the following components: the flushing pipe mechanism comprises a base, a fixing seat and a pushing assembly, wherein the fixing seat and the pushing assembly are arranged on the base, the fixing seat is used for fixing the injector, and the pushing assembly is used for pushing a piston rod of the injector to move; the pipe sealing mechanism comprises a pipe body, an inlet slot and an outlet slot are formed in the pipe body, a flow channel is formed between the inlet slot and the outlet slot, a plugging component is arranged in the pipe body, the plugging component comprises a plugging block and a spring, the spring pushes the plugging block to seal the inlet slot when the injector is in a non-injection state, the spring is compressed under the action of injection liquid thrust in the injection process, and the inlet slot is opened. The utility model pushes the injector to inject the medicine through the flushing pipe mechanism, thereby ensuring that the uniform speed slow injection is realized. The tube sealing mechanism is arranged, so that the connecting port of the indwelling needle can be synchronously sealed through the tube sealing mechanism when the syringe is taken out, and the phenomenon of blood return is avoided.

Description

Punching seal pipe

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a punching and sealing tube.

Background

The flushing tube is used for retaining a pipeline in a human body, such as a retaining needle, a deep vein, a PICC (peripheral catheter), a middle-length catheter, an infusion port and the like, wherein the retaining needle is relatively more in application, for example, in the treatment process of infants, the use of the retaining needle can reduce pain of the infants caused by repeated venipuncture and fear of the injection, the dysphoria emotion of parents is relieved, clinical medication is facilitated, rescue medication of emergency and critical patients is facilitated, the workload of nurses is reduced, and pain of the infants is reduced, so that the venous retaining needle is widely applied clinically.

The punching and sealing tube is used for injecting medicines into the indwelling needle, the traditional punching and sealing tube mainly completes medicine injection through manual operation of medical staff, but the manual operation has more injection steps, the efficiency is lower, and the pushing force of different medical staff is different from person to person. The force used by the same medical staff when pushing the piston rod each time is also different, the operation consistency of each time cannot be ensured, and the phenomenon that the negative pressure is generated in the indwelling needle easily when the syringe is taken out, so that the blood flows backwards is caused. The 2021 version of intravenous infusion guidelines indicate: the wash pipe suggests to inject 1ml pulse wash pipe every time, how to achieve standard unification of each medical staff, and to achieve positive pressure tube sealing, and the prevention of blood return in the catheter becomes the primary difficult problem in the prior art.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model innovatively provides a punching and sealing tube, which can solve the technical problem that the punching and sealing tube in the prior art easily causes the indwelling needle to give out blood back when the injector is taken out.

In order to achieve the technical purpose, the utility model discloses a punching and sealing pipe, which comprises the following components:

the flushing pipe mechanism comprises a base, a fixing seat and a pushing assembly, wherein the fixing seat and the pushing assembly are arranged on the base, the fixing seat is used for fixing the syringe, and the pushing assembly is used for pushing a piston rod of the syringe to move;

the tube sealing mechanism comprises a tube body, an inlet slot and an outlet slot are formed on the tube body, a flow passage is formed between the inlet slot and the outlet slot, the inlet slot is used for being communicated with the injector, the outlet slot is used for being communicated with the indwelling needle,

the injection device is characterized in that a plugging assembly is arranged in the tube body and comprises a plugging block and a spring, when the injector is in a non-injection state, the spring pushes the plugging block to close the inlet slot, the injector is in an injection process, the plugging block compresses the spring under the action of the thrust of injection liquid, and the inlet slot is opened.

Further, the fixing base comprises a sliding rail and a clamping arm arranged on the sliding rail in a sliding manner, the clamping arm is connected with a clamping driving mechanism, and the clamping driving mechanism drives the clamping arm to slide and is used for clamping or releasing the injector.

Further, the base is provided with a supporting frame, the pushing component comprises a driving component fixedly arranged on the supporting frame, the driving component comprises a driving motor and a threaded rod in driving connection with the driving motor,

the pushing assembly further comprises a pushing rod which is connected to the supporting frame in a sliding mode and a driving block which is fixedly connected with the pushing rod, the driving block is in driving connection with the threaded rod, and the threaded rod rotates to enable the driving block to move along the length direction of the threaded rod.

Further, the driving motor is a stepping motor or a servo motor.

Further, the support frame comprises two support plates which are arranged in parallel, the driving motor is fixedly arranged on one of the support plates, the threaded rod is rotatably arranged between the two support plates,

the pushing rods are arranged in two, the two pushing rods are slidably arranged on the two supporting plates in a penetrating mode, pushing ends of the two pushing rods are connected with pushing pistons, and the pushing pistons are used for pushing out liquid medicine in the syringe.

Further, a guide rod is arranged between the two support plates, the guide rod and the threaded rod are arranged between the two support plates in parallel,

the driving block is in sliding connection with the guide rod.

Further, the driving block comprises a threaded hole, an inner thread is formed on the inner wall of the threaded hole, the inner thread is meshed with an outer thread on the threaded rod,

the driving block further comprises a guide hole, and the guide hole is slidably sleeved on the guide rod.

Further, the syringe comprises a syringe body, the pushing piston is slidably arranged in the syringe body, the pushing piston is in sealing contact with the inner wall surface of the syringe body,

the outlet end of the syringe main body is provided with a flushing pipe head, a liquid outlet port is formed in the flushing pipe head and is used for being communicated with the pipe sealing mechanism.

Further, the pipe body comprises a liquid storage bin, the liquid storage bin is communicated with the inlet slot, and the blocking end of the blocking block extends into the liquid storage bin and can block a communication channel between the liquid storage bin and the inlet slot.

Further, a cavity is formed in the plugging block, the plugging end of the plugging block is closed, the other end of the plugging block is opened,

and a communication hole communicated with the internal cavity is formed in the side wall, close to the plugging end, of the plugging block.

The beneficial effects of the utility model are as follows:

the flushing pipe provided by the utility model pushes the injector to inject medicine through the flushing pipe mechanism, and the pushing component controls the injector to push the injector piston with constant pushing force, so that uniform slow injection is ensured. And, set up the tube sealing mechanism, can be when taking out the syringe through tube sealing mechanism synchronous with keep somewhere the connector closure of needle, reach the tube sealing effect, avoid appearing the phenomenon of back blood.

Drawings

FIG. 1 shows a schematic structural view of a punching tube according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram showing the structure of a fixing base according to an embodiment of the present utility model;

FIG. 3 shows an enlarged view at A in FIG. 1;

FIG. 4 shows a schematic structural view of a syringe according to an embodiment of the present utility model;

fig. 5 shows a schematic structural diagram of a tube sealing mechanism according to an embodiment of the present utility model.

In the drawing the view of the figure,

1. a flushing pipe mechanism; 11. a base; 121. a slide rail; 122. a clamping arm; 123. clamping a motor; 124. clamping a screw; 125. a buffer block; 131. a support plate; 132. a push rod; 133. a driving motor; 134. a threaded rod; 135. a driving block; 136. a guide rod; 141. a syringe body; 142. pushing the piston; 143. flushing a tube head; 144. a scale; 145. a piston rod;

2. a tube sealing mechanism; 21. a tube body; 211. an inlet slot; 212. an outlet slot; 213. a liquid storage bin; 214. a communication passage; 215. a sealing gasket; 22. a block; 221. a communication hole; 23. a spring; 24. a fixing plate; 241. and a flow hole.

Detailed Description

The utility model provides a punching seal pipe which is explained and illustrated in detail below with reference to the accompanying drawings.

The flushing pipe provided by the utility model pushes the injector to inject medicine through the flushing pipe mechanism, and the pushing component controls the injector to push the injector piston with constant pushing force, so that uniform slow injection is ensured. And, set up the tube sealing mechanism, can be when taking out the syringe through tube sealing mechanism synchronous with keep somewhere the connector closure of needle, reach the tube sealing effect, avoid appearing the phenomenon of back blood. The utility model is described in detail below in connection with specific embodiments:

the present utility model provides a punching seal pipe, as shown in fig. 1, comprising: the device comprises a flushing pipe mechanism 1 and a pipe sealing mechanism 2, wherein the flushing pipe mechanism 1 comprises a base 11, a fixing seat and a pushing assembly, wherein the fixing seat and the pushing assembly are arranged on the base 11, the fixing seat is used for fixing a syringe, and the pushing assembly is used for pushing a piston rod of the syringe to move. The flushing pipe mechanism 1 realizes automatic pushing of the injector to complete injection through the pushing component, can ensure that the injection process is performed smoothly and slowly, and can perform accurate empty control on the injection speed and the injection quantity.

As shown in fig. 5, the tube sealing mechanism 2 comprises a tube body 21, an inlet slot 211 and an outlet slot 212 are formed on the tube body 21, a flow passage is formed between the inlet slot 211 and the outlet slot 212, the inlet slot 211 is used for communicating with a syringe, and the outlet slot 212 is used for communicating with an indwelling needle. The inside of the tube body 21 is provided with a plugging assembly, the plugging assembly comprises a plugging block 22 and a spring 23, when the injector is in a non-injection state, the spring 23 pushes the plugging block 22 to seal the inlet slot 211, and the plugging block 22 compresses the spring 23 under the action of the thrust of injection liquid in the injection process of the injector, so that the inlet slot 211 is opened. The tube sealing mechanism 2 is used for sealing the connecting port of the indwelling needle when the injector is taken out, so that the phenomenon of blood return is avoided.

In one embodiment, as shown in fig. 2, the fixing base includes a sliding rail 121 and a clamping arm 122 slidably disposed on the sliding rail 121, optionally, the base 11 is a flat plate structure, the sliding rail 121 is fixedly disposed on the base 11, the clamping arm 122 is connected to a clamping driving mechanism, and the clamping driving mechanism drives the clamping arm 122 to slide for clamping or releasing the syringe. The clamping driving structure comprises a clamping motor 123 and a clamping screw 124, a threaded hole is formed in the clamping arm 122, the clamping screw 124 is in threaded connection with the threaded hole, and the clamping motor 123 drives the clamping screw 124 to rotate, so that the clamping arm 122 is controlled to move along the sliding rail 121. Alternatively, two clamping arms 122 are provided, the two clamping arms 122 are oppositely disposed on the slide rail 121, and the two clamping arms 122 may be driven by two sets of clamping driving mechanisms or may share a dual-shaft motor.

Further, the buffer block 125 is arranged on the clamping arm 122, and the buffer block 125 is made of a flexible material and is used for directly contacting with the syringe, so that the clamping force of the syringe can be improved, and meanwhile, the syringe can be protected.

The base 11 is also provided with a support frame, the pushing assembly is arranged on the support frame and comprises a driving assembly fixedly arranged on the support frame, and the driving assembly comprises a driving motor 133 and a threaded rod 134 in driving connection with the driving motor 133. The pushing assembly further comprises a pushing rod 132 slidably connected to the supporting frame and a driving block 135 fixedly connected to the pushing rod 132, the driving block 135 is in driving connection with the threaded rod 134, and the threaded rod 134 rotates to enable the driving block 135 to move along the length direction of the threaded rod 134.

Alternatively, as shown in fig. 1 and 3, the support frame includes two support plates 131 disposed in parallel, and the two support plates 131 are vertically disposed on the base 11 and located at one side of the fixing base. The driving motor 133 is fixedly provided on one of the support plates 131, and the threaded rod 134 is rotatably provided between the two support plates 131. In this embodiment, the driving motor 133 is fixedly disposed on the support plate 131 far away from the fixing base, two pushing rods 132 are disposed, the two pushing rods 132 slidably penetrate through the two support plates 131, pushing ends of the two pushing rods 132 are connected with pushing pistons 142, and the pushing pistons 142 are used for pushing out the liquid medicine in the syringe. The two push rods 132 are separately provided at both sides of the driving motor 133, and the length of the two push rods 132 is greater than the interval between the two support plates 131. Optionally, a guide bar 136 is further disposed between the two support plates 131, the guide bar 136 is disposed between the two support plates 131 in parallel with the threaded rod 134, and the driving block 135 is slidably connected with the guide bar 136. Further, two guide rods 136 are provided, the two guide rods 136 are located at both sides of the threaded rod 134 to guide the movement of the driving block 135, and both ends thereof are fixedly connected to the two support plates 131, so that the reliability of the support frame can be improved.

The driving block 135 has a long strip structure, two ends of the driving block are respectively fixedly connected to one pushing rod 132, the driving block 135 comprises a threaded hole, the inner wall of the threaded hole is provided with internal threads, the internal threads are meshed with external threads on the threaded rod 134, and the threaded hole is positioned at the middle position and matched with the threaded rod 134. The driving block 135 further comprises guide holes, the guide holes are located on two sides of the threaded hole, the guide holes are slidably sleeved on the guide rod 136, the threaded rod 134 rotates to drive the driving block 135 to slide along the threaded rod 134, so that the pushing rod 132 is driven to move, and the sliding direction of the pushing rod 132 can be controlled by controlling the rotating direction of the driving motor 133.

Optionally, the driving motor 133 is a stepper motor or a servo motor, and the distance of each pushing can be controlled by the controller in a matching manner, so that the same dose of physiological saline can be injected each time by controlling the injection, and continuous multiple injections can be realized, for example, 1ml of each pushing injection can be realized according to the guidance of 2021 version of intravenous transfusion guidance, and a pulse type flushing pipe of continuous multiple pushing injection can be realized, thereby effectively causing the vibration of the remaining needle tube in the flushing pipe process and improving the flushing effect. Further, the drive motor 133 is a YE series low-speed motor, and can be rotated at a low speed to perform slow injection.

As shown in fig. 1 and 4, the injector comprises an injector body 141, the injector body 141 is clamped on a fixed seat, a pushing piston 142 is slidably arranged in the injector body 141, the pushing piston 142 is in sealing contact with the inner wall surface of the injector body 141, a punch head 143 is arranged at the outlet end of the injector body 141, a liquid outlet port is formed on the punch head 143 and is used for being communicated with a tube sealing mechanism 2, optionally, the outlet end of the injector body 141 is of an opening structure, an internal thread is arranged on the inner wall, the punch head 143 is in threaded connection with the outlet end, the detachable connection between the punch head 143 and the injector body 141 can be realized, and the tightness of the connection between the punch head 143 and the injector body 141 can be ensured. The syringe body 141 is tubular in configuration with an open end at the end remote from the plunger head 143 and a piston rod 145 slidably extends into the syringe body 141 at one end and is connected to the push piston 142.

The pushing end of the pushing rod 132 contacts with the end of the piston rod 142 located outside the syringe body 141 and pushes the piston rod 142 to move, thereby pushing out the saline in the syringe body 141.

Optionally, the syringe body 141 is made of transparent material, so that the internal liquid level can be conveniently observed, and the outer wall of the syringe body 141 is provided with scales 144, so that a user can read the dosage of the injection liquid medicine.

As shown in fig. 5, the tube body 21 of the tube sealing mechanism 2 includes a liquid storage bin 213, the liquid storage bin 213 is communicated with the inlet slot 211, and the sealing end of the sealing block 22 extends into the liquid storage bin 213 and can seal a communication channel 214 between the liquid storage bin 213 and the inlet slot 211.

Alternatively, a gasket 215 is provided outside the inlet slot 211, and the gasket 215 is in sealing contact with the flushing pipe head 143 when the flushing pipe head 143 is inserted into the inlet slot 211. The socket groove is communicated with the liquid storage bin 213 through a communication channel 214, the area of the flow section of the communication channel 214 is smaller than the end area of the plugging block 22, and the plugging end of the plugging block 22 can plug the communication channel 214.

Optionally, a cavity is formed in the plugging block 22, the plugging end of the plugging block 22 is closed, the other end of the plugging block 22 is opened, and a communication hole 221 communicated with the internal cavity is formed on the side wall of the plugging block 22 close to the plugging end. The spring 23 extends into the cavity of the block 22 at its inner end against the blocking end. A fixing plate 24 is further arranged on one side of the tube body 21, which is close to the outlet slot 212, the other end of the spring 23 is abutted against the fixing plate 24, and a circulation hole 241 is formed in the fixing plate 24 for the liquid medicine to flow to the outlet slot 212.

The working principle of the punching sealing pipe is as follows: before use, the whole condition of the device needs to be checked first to ensure that normal operation can be performed. The tube sealing mechanism 2 is first connected to the indwelling needle, that is, the outlet slot 212 of the tube 21 is connected to the indwelling needle. Meanwhile, the syringe body is connected with the flushing pipe head 143, and then the flushing pipe joint is connected with the inlet slot 211 of the pipe sealing mechanism 2, so that the connection between the flushing pipe mechanism 1 and the pipe sealing mechanism 2 is realized. Then, the syringe is clamped by the fixing base to fix the syringe.

The driving motor 133 is started to drive the pushing rod 132 to move, and meanwhile, the piston 142 is pushed to move, so that physiological saline in the syringe is injected into the tube sealing mechanism 2, and the effect of flushing tubes is achieved. When the normal saline is pushed by the pushing piston 142, the blocking block 22 compresses the spring 23 due to the pressure of the liquid to move the blocking block 22, and the communication channel 214 between the inlet slot 211 and the reservoir 213 is opened, so that the normal saline enters the reservoir 213 and flows into the blocking block 22 from the communication holes 221 on both sides of the blocking block 22, and then flows into the outlet slot 212 and into the indwelling needle through the communication holes 241 on the fixed block. When the syringe is pulled out, the blocking block 22 closes the communication channel 214 between the inlet slot 211 and the liquid storage bin 213 due to the rebound action of the spring 23, so that the backflow of the normal saline is prevented, the occurrence of blood return is avoided, and the tube sealing effect is achieved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to the terms "present embodiment," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any at least one embodiment or example. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, but any modifications, equivalents, and simple improvements made within the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A flush tube comprising:

2. The flush tube of claim 1, wherein the mounting base comprises a slide rail and a clamp arm slidably disposed on the slide rail, the clamp arm being coupled to a clamp drive mechanism that drives the clamp arm to slide for clamping or releasing the syringe.

3. The punching and sealing tube according to claim 2, wherein the base is provided with a supporting frame, the pushing component comprises a driving component fixedly arranged on the supporting frame, the driving component comprises a driving motor and a threaded rod in driving connection with the driving motor,

4. A blanking tube according to claim 3, wherein the drive motor is a stepper motor or a servo motor.

5. A blanking tube according to claim 3, wherein said support frame comprises two support plates arranged in parallel, said drive motor being fixedly arranged on one of said support plates, said threaded rod being rotatably arranged between said support plates,

6. The blanking tube of claim 5, wherein a guide bar is further provided between the two support plates, said guide bar being provided between the two support plates in parallel with said threaded rod,

the driving block is in sliding connection with the guide rod.

7. The blanking tube of claim 6, wherein said drive block includes a threaded bore, an inner wall of said threaded bore being formed with internal threads that engage external threads on said threaded rod,

8. The flush tube of any one of claims 5-7, wherein the syringe comprises a syringe body, the push piston is slidably disposed within the syringe body, the push piston is in sealing contact with an inner wall surface of the syringe body,

9. The flush sealing tube of claim 7, wherein the tube body comprises a liquid storage bin, the liquid storage bin is communicated with the inlet slot, and the sealing end of the sealing block extends into the liquid storage bin and can seal a communication channel between the liquid storage bin and the inlet slot.

10. The flush sealing tube according to claim 9, wherein a cavity is formed in the sealing block, a sealing end of the sealing block is sealed, the other end of the sealing block is opened,