Utility model content
The utility model is proposed to overcome disadvantage existing in the prior art, can essence the purpose is to provide one kindDetermine the intracavitary pricking device of the axillary vein of position.
The technical solution of the utility model is:
One kind can the pinpoint intracavitary pricking device of axillary vein, including puncture needle, puncture sheath, push pipe, long seal wire andExchange guidewire；The puncture needle includes needle stand, the needle body for being set to one side end face of needle stand and is set on needle stand outer circle wallGuide mark, the bending of needle body head end；The puncture sheath includes hollow tubular sheath, the sheath seat for being set in sheath tail end and is set to sheathDirectional beacon on seat outer circle wall, the bending of sheath head end；The push pipe is hollow tubular structure, is set in outside sheath；InstituteIt states long seal wire and exchange guidewire is J-type structure, head end is soft section, and forms instruction in the soft section of exchange guidewire and carveDegree；The puncture needle, long seal wire or exchange guidewire penetrate in sheath hollow cavity.
The needle stand and needle body coaxial line.
The guide mark is arranged perpendicular to needle stand axis, and the direction of guide mark is consistent with needle body head end bending direction.
The needle body head end bending is in 75 °.
The sheath and sheath seat coaxial line.
The directional beacon is arranged perpendicular to sheath seat axis, and the direction of directional beacon is consistent with sheath seat head end bending direction.
The sheath head end bending is in 75 °.
The soft segment length of the long seal wire is less than the soft segment length of exchange guidewire.
The beneficial effects of the utility model are:
The utility model provide one kind can the pinpoint intracavitary pricking device of axillary vein so that percutaneous puncture axillary veinThe approach for being implanted into permanent heart heartstart is achieved, and device structure is simple, operation is convenient, can be accurately positioned point of puncture,Success rate of operation is improved, a possibility that puncturing related complication is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the assembly relation schematic diagram of each component in the utility model use process；
Fig. 2 a, the assembly state diagram that 2b, 2c, 2d, 2e, 2f, 2g are each component of the utility model.
Wherein:
1 puncture needle, 2 puncture sheath
The 3 push long seal wires of pipe 4
5 exchange guidewire, 11 needle stand
12 needle body, 13 guide mark
21 sheath seat, 22 sheath
23 directional beacon, 51 indicating graduation.
Specific embodiment
With reference to the accompanying drawings of the specification and embodiment can the pinpoint intracavitary puncture of axillary vein to the utility model one kindEquipment is described in detail:
As shown in Figure 1, one kind can the pinpoint intracavitary pricking device of axillary vein, including puncture needle 1, puncture sheath 2, pushPipe 3, long seal wire 4 and exchange guidewire 5；
The puncture needle 1 includes needle stand 11, is set to the needle body 12 of 11 1 side end face of needle stand and is set to 11 outer circle of needle standGuide mark 13 on peripheral wall, the bending of 12 head end of needle body；
The puncture sheath 2 includes hollow tubular sheath 22, is set in the sheath seat 21 of 22 tail end of sheath and is set to sheath seat 21Directional beacon 23 on outer circle wall, the bending of 22 head end of sheath；
The push pipe 3 is hollow tubular structure, is set in outside sheath 22；
The long seal wire 4 and exchange guidewire 5 are J-type structure, and head end is soft section, and the soft section of exchange guidewire 5Upper formation indicating graduation 51；
The puncture needle 1, long seal wire 4 or exchange guidewire 5 penetrate in 22 hollow cavity of sheath.
12 coaxial line of the needle stand 11 and needle body.
The guide mark 13 is arranged perpendicular to 11 axis of needle stand, and the direction and 12 head end bending direction of needle body of guide mark 13Unanimously.
12 head end of the needle body bending is in 75 °.
21 coaxial line of the sheath 22 and sheath seat.
The directional beacon 23 is arranged perpendicular to 21 axis of sheath seat, and the direction and 21 head end bending direction of sheath seat of directional beacon 23Unanimously.
22 head end of the sheath bending is in 75 °.
The soft segment length of the long seal wire 4 is less than the soft segment length of exchange guidewire 5.
The application method of the utility model:
A. routine disinfection, after 18G venous cannula pin puncture median basilic vein, indwelling and fixed sleeving；
B. through casing row axillary venegraphy, target area to be punctured is determined；
C. skin is cut to fascia superficialis in puncture in axillary veins target area, the same period can make pouch；
D. as shown in Figure 2 a, it is sent into long seal wire 4 through the positive middle sleeve of elbow, the head end of long seal wire 4 is to subclavian vein with remote；
E. as shown in Figure 2 b, casing is extracted, blade broken skin is sent the puncture sheath 2 after assembling and push pipe 3 along seal wire, puncturedThe head end of the sheath 22 of sheath 2 is to subclavian vein；
F. as shown in Figure 2 c, 2 directional beacon of puncture sheath, 23 to 12 point (sufficient head position) is rotated, withdraws from long seal wire 4；
G. under X-ray examination, puncture sheath 2 and push pipe 3 after withdrawing assembling can be perceived to axillary vein target area in pouchThe head end sheath point protrusion of the sheath 22 of puncture sheath 2；
H. as shown in Figure 2 d, puncture needle 1 is sent to enter in the cavity of sheath 22 of puncture sheath 2, until at 22 head end sheath point of sheath,It after confirming that position is errorless, is punctured from blood vessel to pouch, needle point puncturing veins are visible to naked eyes；
I. as shown in Figure 2 e, puncture sheath 2 is pushed along puncture needle 1 be pierced by vein to 22 head end sheath point naked eyes of sheath as it can be seen that removingPuncture needle 1 out；
J. as shown in figure 2f, the feeding exchange guidewire 5 from 22 head end sheath point of the sheath of puncture sheath 2, about 5 cm of length ~10cm；
K. it withdraws puncture sheath 2 to push pipe 3 and manages interior, fixed 5 tail end of exchange guidewire, pushed along axillary vein to heart directionPipe 3 is pushed, the seal wire head end of exchange guidewire 5 is pushed out conduit and towards heart direction；
L. as shown in Figure 2 g, seal wire is sent into heart by the seal wire tail end for pushing exchange guidewire 5, remainder operation can routinely intoRow；
When m. intending repeatedly being sent into seal wire, aforesaid operations step is repeated.
The utility model provide one kind can the pinpoint intracavitary pricking device of axillary vein so that percutaneous puncture axillary veinThe approach for being implanted into permanent heart heartstart is achieved, and device structure is simple, operation is convenient, can be accurately positioned point of puncture,Success rate of operation is improved, a possibility that puncturing related complication is reduced.