CN219461306U

CN219461306U - Thrombus negative pressure suction band valve syringe

Info

Publication number: CN219461306U
Application number: CN202320521253.8U
Authority: CN
Inventors: 谢林钦; 王守义; 吴明亮
Original assignee: Wenzhou Peoples Hospital
Current assignee: Wenzhou Peoples Hospital
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-08-04
Anticipated expiration: 2033-03-13

Abstract

The utility model relates to a thrombus negative pressure suction valve injector, which comprises a needle cylinder and a piston rod, wherein the piston rod is arranged in the needle cylinder in a sliding way, a stop block is arranged on the inner wall of the needle cylinder, a gap for the stop block to pass through is arranged at one end of the piston rod in the needle cylinder, a power assisting mechanism is also arranged in the needle cylinder, the power assisting mechanism is arranged at the inner bottom of the needle cylinder and is abutted with the end part of the piston rod, and the stop can be carried out in the suction process through the stop block, so that medical staff can easily apply force to the needle cylinder through the power assisting mechanism, thereby assisting the medical staff and greatly facilitating the operation of the medical staff.

Description

Thrombus negative pressure suction band valve syringe

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a thrombus negative pressure suction valved injector.

Background

The prior injector is widely used in hospitals, but is limited to the use of injecting liquid into the body, when in use, the piston rod is required to be pushed into the needle cylinder, the liquid in the needle cylinder is extruded out from the needle hole to finish the use, and the operation in the negative pressure suction direction is only needed.

If used for negative pressure suction, the pushing rod is required to be pulled back by hand all the time, under the condition of continuous application, the pressure is uncontrollable, the liquid rebound and the dislocation are dangerous, and the continuous suction is very physical due to the existence of the pressure, so that the danger can occur at any time for people with incautious operation, and the improvement is needed.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art and provides a thrombus negative pressure suction valved injector.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the thrombus negative pressure suction band valve injector comprises a needle cylinder and a piston rod, wherein the piston rod is arranged in the needle cylinder in a sliding manner, a stop block is arranged on the inner wall of the needle cylinder, a gap for the stop block to pass through is formed in one end of the piston rod in the needle cylinder, a power assisting mechanism is further arranged in the needle cylinder, and the power assisting mechanism is arranged at the inner bottom of the needle cylinder and is in butt joint with the end part of the piston rod.

Preferably, the bottom in the needle cylinder is also provided with a check space, a valve is arranged in the check space, and the valve is rotationally connected with the inner bottom of the needle cylinder.

The utility model has the advantages that:

1. the stop block can stop in the suction process, so that medical staff can relax without maintaining a laborious state.

2. The gap can realize the switching between suction and pause, so that the rebound of the piston is easily prevented, and the labor is saved and the convenience is realized.

3. The power assisting mechanism applies force to the needle cylinder, so that the power assisting mechanism assists medical staff, is greatly convenient for the medical staff to operate, and enables the thrombus sucking work to be easier.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the technical solutions related to the embodiments with respect to the accompanying drawings, and it is obvious that the drawings described in this specification are only some possible embodiments of the present utility model, and other drawings identical or similar to the technical solutions of the present utility model can be obtained according to the following drawings without any inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a negative pressure suction valve syringe for thrombus according to the present utility model;

FIG. 2 is a perspective view of a negative pressure thromboembolic aspiration valved syringe of the present utility model with the compression spring removed;

FIG. 3 is a schematic view of a negative pressure suction thromboembolic syringe barrel of the present utility model;

FIG. 4 is a schematic perspective view of a piston rod of a negative pressure suction valve syringe for thrombus according to the present utility model;

FIG. 5 is a schematic view of a slit of a piston rod of a thrombus negative-pressure aspiration valved syringe according to the present utility model;

FIG. 6 is a cross-sectional view of the section A-A of FIG. 3 of a syringe barrel with a valve for negative pressure aspiration of thrombus according to the present utility model.

Reference numerals and components referred to in the drawings are as follows:

1. a needle cylinder; 11. a valve; 12. a stop block; 13. a compression spring; 2. a piston rod; 21. a pushing end; 22. a slit; 3. a pinhole; 4. and a rubber pad.

Detailed Description

According to the thrombus negative pressure suction valve injector, medical staff can easily suck out thrombus through the clamping block and the power assisting mechanism, and the thrombus negative pressure suction valve injector is more labor-saving and convenient.

The technical solutions described in the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is obvious that the embodiments described in the present specification are only some of the possible technical solutions of the present utility model, and other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without any inventive effort should be considered as falling within the scope of protection of the present utility model.

It should be noted that the descriptions of "first", "second", etc. used in the embodiments of the present utility model are used for descriptive purposes only, and should not be construed as indicating or implying any particular number of features or characteristics of the present utility model, such that the features of the present utility model that are defined in the embodiments herein may be indicative of at least one of such defined features or characteristics.

The technical solutions of the embodiments of the present utility model described in the present specification may be combined with each other, but it is necessary that the technical solutions are based on the fact that those skilled in the art can implement the embodiments, and when the technical solutions are combined with each other or cannot be implemented, the technical solutions should be considered as not being combined.

As shown in fig. 1-6, the thrombus negative pressure suction belt valve injector comprises a needle cylinder 1 and a piston rod 2, wherein the piston rod 2 is arranged in the needle cylinder 1 in a sliding manner, a stop block 12 is arranged on the inner wall of the needle cylinder 1, a gap 22 through which the stop block 12 passes is formed at one end of the piston rod 2 in the needle cylinder 1, a power assisting mechanism is further arranged in the needle cylinder 1, and the power assisting mechanism is arranged at the bottom in the needle cylinder 1 and is in butt joint with the end part of the piston rod 2.

Specifically, the utility model is used for sucking venous or arterial thrombus, the technical problem that the medical staff is difficult to suck due to pressure and consumes effort when using the injector is solved, the injector piston rod 2 is arranged in the needle cylinder 1 in a sliding way, the outer diameter of the piston rod 2 is equivalent to the inner diameter of the needle cylinder 1, the piston rod 2 is pulled outwards to form a negative pressure state to suck thrombus when in use, the stop block 12 is arranged on the inner wall of the needle cylinder 1, the stop block 12 is used for preventing the piston rod 2 from rebounding due to pressure in the sucking process, the stop block 12 can stop in the sucking process, so that the medical staff can relax without maintaining a laborious state, the piston rod 2 is arranged at one end of the needle cylinder 1 as a pushing end 21, the pushing end 21 is provided with a gap 22 for the stop block 12 to pass through, the gap 22 is aligned with the stop block 12 when in sucking, and the piston is rotated when stopping, so that the gap 22 is far away from the stop block 12, thereby realizing switching between sucking and stopping, the rebound of the piston is easily prevented, the force is more convenient, a booster mechanism is further arranged in the needle cylinder 1, the booster mechanism is used for helping the medical staff to pull the piston rod 2 outwards to the piston rod 1 when in sucking process, the rebound is more force-saving and convenient, and the needle cylinder 1 is simultaneously, the booster mechanism is arranged at the bottom of the needle cylinder 1, and the medical staff is more convenient to apply force to the suction force to the needle cylinder.

Preferably, the booster mechanism comprises a compression spring 13, the compression spring 13 being arranged coaxially with the piston rod 2.

Specifically, the piston rod 2 can be abutted with the compression spring 13, in an initial state, the compression spring 13 is compressed to a limit state through the piston rod 2, then suction is started, the force required by medical staff is relieved through the restoring force of the compression spring 13, the pressure in the needle cylinder 1 and the blood vessel is overcome through the restoring force and the force required by the medical staff, so that thrombus is sucked out, and the compression spring 13 is adopted for assisting, so that on one hand, the force outside the needle cylinder 1 can be well provided, on the other hand, the thrombus extraction can not be influenced, and the usability of the utility model is enhanced.

Preferably, the stop block 12 is provided with a plurality of groups, which are respectively and correspondingly arranged at different scale positions.

Specifically, dog 12 is provided with a plurality of groups, has still increased more spacing departments when can not influencing the piston rod 2 and remove, sets up dog 12 in the position of different scales, can be better provide the information of the interior blood flow of cylinder 1 to medical personnel, makes things convenient for medical personnel's practicality and count.

Preferably, the stop 12 is triangular in cross-section, 5 x 5mm in length, 3mm in thickness, the material consumption and the processing difficulty can be reduced on the premise of keeping the fixity.

Preferably, the bottom in the needle cylinder 1 is also provided with a check space, a valve 11 is arranged in the check space, and the valve 11 is rotationally connected with the inner bottom of the needle cylinder 1.

Specifically, be provided with the check space in the cylinder 1 for prevent thrombus backward flow, be provided with the valve 11 in the check space, the valve 11 rotates with the cylinder 1 inner bottom to be connected, can open or seal pinhole 3, can make thrombus get into when opening, can make the valve 11 seal pinhole 3 through pressure when sealing, thereby prevent thrombus backward flow.

Preferably, the diameter of the valve 11 is smaller than the inner diameter of the compression spring 13.

Specifically, the valve 11 is arranged in the compression spring 13, and the diameter of the valve 11 is smaller than the inner diameter of the compression spring 13, so that the compression spring 13 and the valve 11 are not affected by each other, thereby saving labor and preventing thrombus from flowing back; the radius of the valve is 5mm, so that the needle hole can be completely sealed.

Preferably, the stopper 12 is formed with a tip having an inner diameter larger than an outer diameter of the compression spring 13.

Specifically, the inner diameter formed by connecting the tips of the stop blocks 12 is larger than the outer diameter of the compression spring 13, so that the interference between the compression spring 13 and the stop blocks 12 is avoided, and the practicability and stability of the utility model are improved.

Preferably, the other end of the piston rod 2 is also provided with a rubber pad 4.

Specifically, can improve the comfort level of use through rubber pad 4, make things convenient for medical personnel's use more, rubber pad thickness is 1mm.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and additions to the utility model may be made by those skilled in the art without departing from the principles of the utility model and such modifications and additions are also considered to be within the scope of the utility model.

Claims

1. The utility model provides a thrombus negative pressure suction takes valve syringe, includes cylinder and piston rod, the piston rod slides and sets up in the cylinder, its characterized in that: the needle cylinder is characterized in that a stop block is arranged on the inner wall of the needle cylinder, a gap through which the stop block passes is formed in one end of the piston rod in the needle cylinder, a power assisting mechanism is further arranged in the needle cylinder, and the power assisting mechanism is arranged at the inner bottom of the needle cylinder and is abutted to the end part of the piston rod.

2. A negative pressure thrombotic aspiration valved syringe according to claim 1, wherein: the power assisting mechanism comprises a compression spring, and the compression spring and the piston rod are coaxially arranged.

3. A negative pressure thrombotic aspiration valved syringe according to claim 2, wherein: the stop block is provided with a plurality of groups which are respectively and correspondingly arranged at different scale positions.

4. A negative pressure thrombotic aspiration valved syringe according to claim 3, wherein: the bottom in the needle cylinder is also provided with a check space, a valve is arranged in the check space, and the valve is rotationally connected with the inner bottom of the needle cylinder.

5. A negative pressure thrombotic aspiration valved syringe according to claim 4, wherein: the valve diameter is smaller than the compression spring inner diameter.

6. A negative pressure thrombotic aspiration valved syringe according to claim 2, wherein: the stopper is formed to have an inner diameter larger than an outer diameter of the compression spring.