Disclosure of utility model
The utility model aims to solve the defects in the prior art, the currently used special needle for the transfusion port needs manpower to fix the transfusion port base to puncture or pull out the needle, the puncture wound easily occurs in the process, or the transfusion cannot be performed due to inaccurate puncture, the puncture needs to be performed again, and the pain of a patient is increased.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a special needle of push type transfusion harbor, includes the fixed disk, the top of fixed disk is connected with the go-between, the fixed guide structure that resets of top fixedly connected with of go-between, the fixed guide structure that resets's top has cup jointed and has been pressed the puncture structure, when pressing press the puncture structure, press the puncture structure and can extrude downwards and puncture skin to rotate and fixed guide structure that resets is connected fixedly, when the reverse rotation press the puncture structure, press the puncture structure and can be popped out by fixed guide structure that resets.
Preferably, the fixed reset guiding structure comprises a guiding cylinder, the bottom of the guiding cylinder is fixedly connected with a connecting cylinder, and the outer surface of the connecting cylinder is provided with first connecting threads.
Preferably, a plurality of return springs are arranged at the top of the connecting cylinder and positioned at the outer side of the guide cylinder, and the plurality of return springs are fixedly connected with the connecting cylinder.
Preferably, the pressing puncture structure comprises an outer sleeve, an inner mounting cylinder is arranged in the outer sleeve, and the inner mounting cylinder is connected with the outer sleeve through a connecting fixing block.
Preferably, a puncture needle is arranged at the center of the inside of the inner mounting cylinder, and a second connecting thread is arranged on the peripheral wall of the inside of the outer sleeve and close to the bottom.
Preferably, a plurality of limit baffles are arranged on the peripheral wall inside the outer sleeve and above the second connecting threads, and the top of the inner mounting cylinder is connected with an infusion extension tube.
Preferably, the second connecting screw thread of the inner side mounting cylinder is connected with the first connecting screw thread of the fixed reset guiding structure, the reset spring is matched with the limit baffle for use, the inner side mounting cylinder is not fixed with the guiding cylinder, and the guiding cylinder is fixedly connected with the connecting cylinder.
Compared with the prior art, the utility model has the beneficial effects that:
According to the device, when the puncture is performed, hands of medical staff do not need to be in contact with the puncture needle, the puncture needle is arranged in the device during the puncture, and cannot be exposed outside, meanwhile, the device has the functions of limiting and positioning the puncture, is accurate in puncture, does not need secondary puncture, and reduces pain of a patient.
Drawings
FIG. 1 is a schematic diagram of the main structure of a push type needle for port transfusion provided by the utility model;
Fig. 2 is a schematic diagram of a fixed reset guiding structure of a special needle for a push type transfusion harbor;
Fig. 3 is a schematic diagram of the internal structure of a pressing puncture structure of a special needle for a pressing transfusion port;
fig. 4 is a schematic cross-sectional view of a main body of a push type needle for an infusion port according to the present utility model.
The illustration is 1, fixed disk; 2, a connecting ring, 3, a fixed reset guide structure, 31, a guide cylinder, 32, a connecting cylinder, 33, a first connecting thread, 34, a reset spring, 4, a push puncture structure, 41, an outer sleeve, 42, an inner mounting cylinder, 43, a connecting fixing block, 44, a puncture needle, 45, a second connecting thread, 46, a limit baffle, 47 and an infusion extension tube.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
In order that the utility model may be more fully understood, several embodiments of the utility model will be set forth below with reference to the accompanying description, but the utility model may be embodied in many different forms and is not limited to the embodiments described herein, but is instead provided to provide a more thorough and complete disclosure of the utility model.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.
Example 1
As shown in figures 1-4, the utility model provides a technical scheme that the special needle for the push type transfusion harbor comprises a fixed disc 1, the top of the fixed disc 1 is connected with a connecting ring 2, the top of the connecting ring 2 is fixedly connected with a fixed reset guide structure 3, a push puncture structure 4 is sleeved above the fixed reset guide structure 3, when the push puncture structure 4 is pushed, the fixed disc 1, the connecting ring 2, the fixed reset guide structure 3 and the push puncture structure 4 are all made of transparent visual materials, the push puncture structure 4 can downwards extrude and puncture the skin, and rotate to be connected and fixed with the fixed reset guide structure 3, when the push puncture structure 4 is reversely rotated, the push puncture structure 4 can be popped up by the fixed reset guide structure 3, when the device is used for puncturing, hands of medical staff do not need to be contacted with a puncture needle 44, and the puncture needle 44 is not exposed outside during puncturing, and meanwhile, the special needle has the functions of limiting and positioning puncture, the puncture is accurate, secondary puncture is not needed, and pain of patients is reduced.
Example 2
As shown in fig. 1-4, the utility model provides a technical scheme that a fixed reset guiding structure 3 comprises a guiding barrel 31, a connecting barrel 32 is fixedly connected to the bottom of the guiding barrel 31, and a first connecting thread 33 is arranged on the outer surface of the connecting barrel 32.
The top of connecting tube 32 and be located the outside of guiding tube 31 and be equipped with a plurality of reset spring 34, fixed connection between a plurality of reset spring 34 and the connecting tube 32, reset spring 34 can release the energy and spring up limit baffle 46, alright accomplish pjncture needle 44 and pop out the skin.
The push puncture structure 4 includes an outer sleeve 41, an inner mounting tube 42 is provided inside the outer sleeve 41, and the inner mounting tube 42 is connected to the outer sleeve 41 by a connection fixing block 43.
A puncture needle 44 is arranged at the center of the inside of the inner mounting cylinder 42, and a second connecting thread 45 is arranged on the peripheral wall of the inside of the outer sleeve 41 and near the bottom.
A plurality of limit baffles 46 are arranged on the peripheral wall inside the outer sleeve 41 and above the second connecting threads 45, and the top of the inner mounting cylinder 42 is connected with an infusion extension tube 47.
The second connecting screw thread 45 of the inner mounting cylinder 42 is connected with the first connecting screw thread 33 of the fixed reset guiding structure 3, the reset spring 34 is matched with the limit baffle 46, the inner mounting cylinder 42 is not fixed with the guide cylinder 31, the guide cylinder 31 is fixedly connected with the connecting cylinder 32, after the placement is finished, the outer sleeve 41 is pressed, the outer sleeve 41 drives the inner mounting cylinder 42 to move downwards through the connecting fixing block 43 under the action of the pressing force, the inner mounting cylinder 42 is positioned in the guide cylinder 31, during the movement, the guide cylinder 31 limits the inner mounting cylinder 42, and then the puncture needle 44 positioned in the inner mounting cylinder 42 does not deviate in the pressing process, so that the puncture needle 44 can be accurately inserted into the skin of a patient, and when the pressing is continued, the puncture needle 44 enters into the transfusion port base in the skin of the patient through the connecting cylinder 32, the connecting ring 2 and the inner part of the fixing disk 1, and after the insertion is finished, only the outer sleeve 41 is required to be rotated, the second connecting screw thread 45 in the outer sleeve 41 is connected with the first connecting screw thread 33 of the connecting cylinder 32, and the fixing is formed.
When the special needle for the push type transfusion harbor is used, the fixed disc 1 is firstly placed at the transfusion harbor base positioned on the skin of a patient, and the inner side wall of the fixed disc 1 is provided with the anti-skid threads, so that the fixed disc 1 can be well fixed with the skin of the patient to prevent sliding.
After the placement is completed, the outer sleeve 41 is pressed at this time, under the action of the pressing force, the outer sleeve 41 drives the inner mounting cylinder 42 to move downwards together through the connecting fixing block 43, the inner mounting cylinder 42 is located inside the guide cylinder 31, the guide cylinder 31 limits the inner mounting cylinder 42 during the movement, and then the puncture needle 44 located inside the inner mounting cylinder 42 cannot deviate during the pressing process, so that the puncture needle 44 can be accurately inserted into the skin of a patient, when the pressing is continued, the puncture needle 44 can enter the transfusion port base in the skin of the patient through the inside of the connecting cylinder 32, the connecting ring 2 and the fixing disc 1, after the insertion is completed, only the outer sleeve 41 is required to be rotated, and the second connecting threads 45 inside the outer sleeve 41 are connected with the first connecting threads 33 of the connecting cylinder 32, so that the fixing is formed.
It should be noted that, in the connection process, the limit baffle 46 can synchronously extrude the return spring 34, so that the return spring 34 stores energy, the puncture connection work between the puncture needle 44 and the transfusion port base can be completed, when the puncture needle needs to be pulled out, only the outer sleeve 41 needs to be reversely rotated, the second connecting thread 45 and the first connecting thread 33 are separated from each other, after separation, the limit baffle 46 can be sprung up by the return spring 34, the puncture needle 44 can be ejected out of the skin, the hands of medical staff do not need to contact with the puncture needle 44 in the whole puncture process, the puncture needle 44 is in the device, and cannot be exposed outside during puncture, and meanwhile, the puncture needle has the functions of limiting and positioning, accurate puncture, no secondary puncture is needed, and pain of a patient is reduced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.