Directly push away and the bonded medical balloon pressure pump of rotary fine adjustment
One, technical field
The present invention relates to a kind of medical pressure pump, especially a kind of being used for fills the medical balloon pressure pump with shrink process to medical sacculus.
Two, background technology
Medical balloon pressure pump is mainly used in the medical sacculus of expansion, pressurizes and carries out the mensuration and the supervision of pressure.Medical sacculus is mainly used in Invasive Technology Department, intracardiac section, Gastroenterology dept., urology department etc. to body cavities stenosis expansion operation usefulness, and like blood vessel dilating, expansion biliary tract etc., in operation, the control of pressure is extremely important.The compression pump complex structure that uses clinically at present, it is high to make required precision, because of domestic prior art still not mature enough, so rely on import basically.And existing compression pump uses convenient inadequately, and the rotation pressurization is slower on the one hand, and operating difficulties need strengthen strength; In use the stripped thread phenomenon occurs than being easier on the other hand, cause the aeration quantity deviation, and the pressure of dilatation balloon is difficult for accurately control, reliability is low, is unfavorable for operation technique, has the hidden danger that has an accident.
Three, summary of the invention
The objective of the invention is to solve the deficiency of above-mentioned existing medical pressure pump; Provide a kind of directly pushing away to advance the medical balloon pressure pump that combines with rotary fine adjustment; Its pressure can survey, pressurize accurately, reservoir quantity or aeration quantity are accurately controlled, have easy to use, reliable, be difficult for characteristics such as stripped thread.
The objective of the invention is to adopt following scheme to realize: a kind of directly pushing away and the bonded medical balloon pressure pump of rotary fine adjustment, it comprises handle, screw rod, piston, the pump housing and outut device, is characterized in: it also comprises push rod, crank, fine setting case and Pressure gauge; Said push rod end face connects handle, the bottom surface connects piston; Said screw rod inserts in the pump housing and is hollow, and push rod inserts in the screw rod movably and uses; Check valve and pressure relief press button are equipped with in the bottom of the said pump housing; Said fine setting case is contained in pump housing top; Said crank rotates the back and moves up and down through fine setting case drive screw, makes screw rod can promote piston fine setting downwards and moves.
In the above-mentioned fine setting case bevel-gear sett is arranged, its drive bevel gear is fixedly connected with crank, is connected with screw coaxial by dynamic bevel gear, and its inwall has with the corresponding female thread of screw rod external screw thread and cooperates with it, makes things convenient for the propelling and the answer of screw rod.
Above-mentioned outut device comprises that the inlet that is contained in pump housing below, the high-pressure conduit that is connected with inlet reach at the terminal high voltage interface of high-pressure conduit.
Above-mentioned Pressure gauge is contained in pump housing bottom, with the pump housing through being threaded.
The above-mentioned pump housing is provided with graduated disc, intuitively understands advance distance, inflation volume.
The present invention adopts the beneficial effect of such scheme to be: the mode that 1) adopts push rod directly to push away earlier, and convenient and strength-saving, adopt then and rotate the fine setting that crank uses the mode of screw thread precession to pressurize, make pressurization accurately reliable; 2) the button pressure release is quick and convenient; 3) through Pressure gauge is set, pressure data is shown control, make pressurization and pressure release directly perceived more and accurate.
Four, description of drawings
Fig. 1 is that the present invention directly pushes away the three-dimensional structure diagram with the bonded medical balloon pressure pump of rotary fine adjustment;
Fig. 2 is that the present invention directly pushes away the front view with the bonded medical balloon pressure pump of rotary fine adjustment;
Fig. 3 is the A-A cutaway view when push rod and screw rod advance fully among Fig. 2;
Fig. 4 is the A-A cutaway view when push rod and screw rod answer among Fig. 2.
Label declaration in each width of cloth accompanying drawing is following:
1-hands handle; The 2-push rod; The 2a-piston; The 3-screw rod; 4-finely tunes case; The 5-crank; The 6-high voltage interface; The 7-high-pressure conduit; The 8-pump housing; The 8a-graduated disc; The 8b-dividing plate; The 9-pressure relief press button; The 10-Pressure gauge; The 11-inlet; The 12-drive bevel gear; 13-is by dynamic bevel gear; The 14-check valve.
Five, the specific embodiment
Below in conjunction with accompanying drawing a kind of directly pushing away with the specific embodiment of the bonded medical balloon pressure pump of rotary fine adjustment of the present invention described in detail.
Like Fig. 1,2, shown in 3; It comprises piston 2a, screw rod 3, crank 5, the fine setting case 4 by crank 5 controls, the pump housing 8 of handle 1, push rod 2 bottom surfaces of push rod 2, push rod 2 end faces, check valve 14, pressure relief press button 9 and the Pressure gauge 10 of the pump housing 8 bottoms, and reaches the outut device that the high voltage interfaces 6 at high-pressure conduit 7 ends constitute by the inlet 11 that is contained in the pump housing 8 belows, the high-pressure conduit 7 that is connected with inlet 11.
The pump housing 8 is provided with graduated disc 8a.A dividing plate 8b with holes is set in the pump housing 8 bottoms; Dividing plate 8b is with being divided into two chambeies up and down in the pump housing 8; Piston 2a is at epicoele, and check valve 14, pressure relief press button 9 and Pressure gauge 10 be at cavity of resorption, the back-up ring that check valve 14 is promptly held by spring; Cavity of resorption has behind the air pressure that dividing plate 8b is gone up the hole is closed, and Pressure gauge 9 and the pump housing 8 are through being threaded.
Like Fig. 3, shown in 4, screw rod 3 is hollow, and push rod 2 inserts in the screw rod 3 movably, and in screw rod 3 inserts the pump housing 8.
As shown in Figure 2, fine setting case 4 is contained in the pump housing 8 tops, in bevel-gear sett is arranged, its drive bevel gear 12 is fixedly connected with crank 5, crank 5 is outside finely tuning case 4; By dynamic bevel gear 13 and 3 coaxial connections of screw rod, its inwall has with the corresponding female thread of screw rod 3 external screw threads and cooperates with it.
During pressurization, utilize handle 1 to promote push rod 2 earlier, through checking Pressure gauge 10 and graduated disc 8a, make piston 2a arrival need the position, because the effect of check valve 14 can not shunk after the inflation automatically, push rod stops can not automatically reply.When needs are finely tuned, rotate crank 5, drive screw rod 3 by bevel gear and move down; Until contacting with piston 2a, as shown in Figure 3, again according to the demonstration of Pressure gauge 10; Slowly rotate crank 5, control screw rod 3 is pressed slowly propelling piston 2a of screw thread, needs force value until arrival.
During pressure release, press pressure relief press button 9 and get final product, gas is emitted sacculus and shunk automatically, and is as shown in Figure 4, rotates crank 5 screw rod 3 is replied, because no longer its spring answer of pressurized of check valve 14, push rod 2 also can easily retract.