Background technology
At present when carrying out heart cardiopulmonary bypass surgery, need to cool to entire patient about 30 DEG C, then clamping of aorta, need heart is cooled to 8-10 DEG C, and keep 30min-6h, traditional way is to be poured into 4 DEG C of cold cardioplegia solution (10-15ml/kg) by the intrusion pipe of aortic root immediately, and ice bits cooling in heart bud simultaneously, so that heart stops rapidly to fight; But need when irrigating cold cardioplegia solution to stop operation, easily stab or cold injury heart surface and conductive beam, phrenic nerves during with ice bits cooling, and need the carrying out being interrupted repeatedly add ice bits or irrigate cold cardioplegia solution in whole process, use inconvenience, and Heart temperature is wayward.
And at present when carrying out heart cardiopulmonary bypass surgery, particularly operating time is long, the patient of myocardial preservation difference, if needing to stop the dirty pace-making of pulsatile heart, often need to one original power of heart, prior art realizes mainly through manually pressing heart, and this supplementary mode mainly has the disadvantage that: press uneven, easily increase the weight of heart and injury, it is impossible to realize long-time pressing; Secondly, Low output patient, it is generally required to row extracorporeal circulation auxiliary cardio-pulmonary function, this extracorporeal circulation supplementary mode has increase hematoclasis, infection, the multiple severe complication such as hemorrhage and cannot make a connection for a long time; Additionally under special circumstances OCCPR time, doctor does not have too many muscle power to carry out long-time effectively cardiac compression.
Traditional electrocardio pacing electrode needs the hand-held electrode of doctor to carry out multi-faceted detecting one by one, and places electrode, uses inconvenience; Simultaneously because heartbeat and cause great difficulty to location, cause being accurately positioned; Prior art cannot realize multiple location and monitor and electrophysiological stimulation simultaneously.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the purpose of the present invention is just to provide a kind of composite multifunction 3 D stereo Cardioprotective cover, effectively solves the technical problem in background above technology.
The scheme of its solution is, non-resilient airtight outer housing including the upper opening suitable with heart shape, the medical elastic layer of silica gel suitable with outer hood shape it is provided with in outer housing, the top of medical elastic layer of silica gel is connected with the upper opening edge seal of outer housing, outer housing is provided with passage, space between passage connection outer housing and medical elastic layer of silica gel, outer housing medial surface is provided with the ventilating cover covering on passage, and passage is connected to and can uninterruptedly carry out on the device of air-breathing inflation; Ice blanket it is fitted with inside medical elastic layer of silica gel, ice blanket internal layer is provided with thermometric electrode, ice blanket internal layer is fitted with layer of cloth, layer of cloth medial surface is provided with multiple pacing electrode, the wire of pacing electrode is placed between layer of cloth and ice blanket, the end of wire reaches outside outer housing through the junction of layer of cloth Yu ice blanket top, outer housing is provided with band loop around its upper opening, is equipped with the first elastic straps in band loop.
Present invention have the advantage that 1, the present invention uses gas constantly to carry out pressing and discharging pressure to heart, simulation heartbeat, constantly provide power to heart, and press uniformly, be not result in heart local damage, the difficult point that solve pace-making difficulty under cardiac operation under direct vision, cannot press for a long time, sustainable uniform pressing heart, to heart original power, and can work long hours, achroacyte destroys, the advantages such as hemorrhage probability is little. 2, the present invention is possible not only to true omnibearing record electrocardio-activity, and the cardiac electrophysiology that can bring out multiple needs is movable, application simplicity, accurate positioning, it is possible to multiple location is monitored electro physiology situation and gives the electricity irritation needed simultaneously. 3, operation process can keep Heart temperature constant, lowering temperature uniform, will not cold injury or damage heart surface, facilitate the carrying out of operation and improve the efficiency of operation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Provided by Fig. 1 to Fig. 3, the present invention includes the non-resilient airtight outer housing 1 of the upper opening suitable with heart shape, the medical elastic layer of silica gel 2 suitable with outer housing 1 shape it is provided with in outer housing 1, the top of medical elastic layer of silica gel 2 is connected with the upper opening edge seal of outer housing 1, outer housing 1 is provided with passage 3, passage 3 connects the space between outer housing 1 and medical elastic layer of silica gel 2, outer housing 1 medial surface is provided with the ventilating cover 4 covered on passage 3, and passage 3 is connected to and can uninterruptedly carry out on the device 5 of air-breathing inflation; Ice blanket 6 it is fitted with inside medical elastic layer of silica gel 2, ice blanket 6 internal layer is provided with thermometric electrode, ice blanket 6 internal layer is fitted with layer of cloth 7, layer of cloth 7 medial surface is provided with multiple pacing electrode 8, the wire 9 of pacing electrode 8 is placed between layer of cloth 7 and ice blanket 6, the end of wire 9 reaches outside outer housing 1 through the junction of layer of cloth 7 with ice blanket 6 top, outer housing 1 is provided with band loop 10 around its upper opening, is equipped with the first elastic straps 11 in band loop 10.
The described device 5 that can uninterruptedly carry out air-breathing inflation includes tumbler 501 and connects the cylinder 502 on passage 3 with one end, seal in cylinder 502 and be provided with rubber piston 503, one end of rubber piston 503 passage 3 dorsad is connected with piston rod 504, described tumbler 501 drives through rotary electric machine 505 and rotates, piston rod 504 rotates the side being fixed on 501 turns of hearts of tumbler, the rotational plane of tumbler 501 is parallel with the axis of piston rod 504, here with connecting rod crank structure, reach to convert the rotation of motor to the straight reciprocating motion of piston.
The rubber layer 102 that described non-resilient airtight outer housing 1 is fixed on non-resilient cloth 101 internal layer by the non-resilient cloth 101 being placed in outer layer and laminating is constituted.
Described outer housing 1 is vertically interval with more than one group along the spaced multiple band rings 12 of its outer rim, be provided with the second elastic straps 13 in band ring 12.
Described layer of cloth 7 is nonwoven layer.
The wire of described pacing electrode 8, through band loop 10, passes through the edge of the first elastic straps 11.
When the present invention uses, layer of cloth 7 is crossed the position that heart circumference is maximum, it is used up the first elastic straps 11 contraction and is fixed on heart, when needs carry out external impetus to heart, open rotary electric machine 505, rotary electric machine 505 promotes piston rod 504 to drive rubber piston 503 to move reciprocatingly through tumbler 501, now rubber piston 503 moves downward, the air of sleeve 502 bottom is pressed between outer housing 1 and medical elastic layer of silica gel 2, outer housing 1 is to be made up of non-resilient gas impermeable material (non-resilient cloth 101), it is airtight, and not there is elasticity, therefore, medical elastic layer of silica gel 2 is stressed and acts on towards heart pressuring direction, when rubber piston 503 moves upward, gas between medical elastic layer of silica gel 2 and outer housing 1 is detached, now heart returns to normal condition, while rubber piston 503 constantly moves back and forth process, medical elastic layer of silica gel 2 constantly presses to heart, the process of release, the rotating speed that can adjust rotary electric machine 505 adjusts the frequency carrying out air-breathing and venting, passage 3 on outer housing 1 medial surface is provided with ventilating cover 4, when can be blocked in air-breathing, medical elastic layer of silica gel 2 fits on passage 3, and cause the not smooth adverse consequences of air-breathing. when needs use pacing electrode 8, the second band 13 can be further used to be fitted on heart by outer housing 1, then pacing electrode 8 is connected on electrode system through wire, the activity of pacing electrode is controlled through electrode system, multiple pacing electrodes 8 are arranged in inside layer of cloth 7, and pacing electrode 8 contacts heart adventitia, it is possible to heart is carried out 3 D stereo monitoring, really omnibearing record electrocardio-activity, and the cardiac electrophysiology that can bring out multiple needs is movable. when needs keep Heart temperature constant in operation process, the second band 13 can be used to be fitted on heart by outer housing 1 further, then ice blanket 6 and thermometric electrode are connected on ice blanket cooling instrument, it is outside that ice blanket wire 14 and thermometric electrode cable 15 can reach outer housing 1 through the top edge that ice blanket combines with medical elastic layer of silica gel, control to input the temperature of the liquid in ice blanket 6, the temperature that the heart surface temperature recorded from thermometric electrode adjusts, it is made to keep in certain temperature range, Heart temperature can be kept invariable in its temperature of whole intra-operative, it is beneficial to the carrying out of operation, in the middle of operation uninterruptedly, procedure efficiency is high, owing to the temperature constant of ice blanket 6 is uniform, will not cold injury or damage heart surface.
Present invention have the advantage that 1, the present invention uses gas constantly to carry out pressing and discharging pressure to heart, simulation heartbeat, constantly provide power to heart, and press uniformly, be not result in heart local damage, the difficult point that solve pace-making difficulty under cardiac operation under direct vision, cannot press for a long time, sustainable uniform pressing heart, to heart original power, and can work long hours, achroacyte destroys, the advantages such as hemorrhage probability is little.2, the present invention is possible not only to true omnibearing record electrocardio-activity, and the cardiac electrophysiology that can bring out multiple needs is movable, application simplicity, accurate positioning, it is possible to multiple location is monitored electro physiology situation and gives the electricity irritation needed simultaneously. 3, operation process can keep Heart temperature constant, lowering temperature uniform, will not cold injury or damage heart surface, facilitate the carrying out of operation and improve the efficiency of operation.