CN107361818B

CN107361818B - An apex exploration device used in cardiac surgery

Info

Publication number: CN107361818B
Application number: CN201710599993.2A
Authority: CN
Inventors: 彭博; 王强
Original assignee: Fuwai Hospital of CAMS and PUMC
Current assignee: Fuwai Hospital of CAMS and PUMC
Priority date: 2017-07-21
Filing date: 2017-07-21
Publication date: 2020-05-05
Anticipated expiration: 2037-07-21
Also published as: CN107361818A

Abstract

The invention discloses a cardiac apex exploration device used in cardiac surgery, comprising a first clamp arm and a second clamp arm hinged together by a first fastener; the front end of the first clamp arm is provided with a first clamp arm an elbow, the rear end of the first clamp arm is provided with a first grip; the front end of the second clamp arm is provided with a second elbow, and the rear end of the second clamp arm is provided with a second grip department. The first elbow and the second elbow are hollow structures, and the front ends of the first elbow and the second elbow are respectively provided with a laser light detection component, and the front ends of the first elbow and the second elbow are respectively set. There is a light guide column detachably connected with it; the light guide column includes a light guide body, and the rear end of the light guide body is provided with a connecting head detachably connected with the first elbow and the second elbow, the light guide column The front end of the light guide is provided with a light-scattering surface, and the connection between the light guide column and the connecting head is provided with an outwardly protruding pocket.

Description

Heart tip probing device used in cardiac surgery

Technical Field

The invention relates to an apical probing device for cardiac surgery.

Background

The heart exploration is divided into extracardiac exploration and intracardiac exploration, the extracardiac exploration part can be finished by the fingers of a surgeon or forceps and other instruments, for the exploration of the inside of the heart, because the incision is small, the visual field is limited, the exploration difficulty is higher, the general muscle drag hook, forceps or suspension pull wire can only be effectively exposed shallowly, but the exploration of the apex of the heart is difficult, the inventor often encounters such problems in the operation process of the cardiac surgery, for example, for a patient with poor ventricular septum development, the repair of multiple right ventricular defects of the apex of the heart is the difficulty and the key point of the whole operation, and sometimes the incision is needed to completely distribute the apex of the heart, so that the problem of one hand is faced, on one hand, the apex of the heart needs to be accurately positioned, the right ventricular cavity needs to be repeatedly explored by using a right-angle forceps, the cutting position is judged by the uplift of the myocardium outside the heart, on the other hand, the right coronary artery needs to be avoided, so that the operation needs to be repeatedly explored to continuously move the young heart of the infant patient so as to realize both inside and outside, which greatly attacks the young myocardial of the infant patient and directly influences the operation effect.

Disclosure of Invention

The invention aims to provide an apical probing device for cardiac surgery, which can prevent the mutual infection between patients caused by the insufficient disinfection.

In order to solve the technical problem, the invention provides an apex probing device for cardiac surgery, which comprises a first clamp arm and a second clamp arm which are hinged together through a first fastener; the front end part of the first clamp arm is provided with a first elbow, and the rear end part of the first clamp arm is provided with a first holding part; the front end part of the second clamp arm is provided with a second elbow, and the rear end part of the second clamp arm is provided with a second holding part.

The first elbow and the second elbow are of hollow structures, the interior of the front end of the first elbow and the interior of the front end of the second elbow are respectively provided with a laser lamp detection component, and the front ends of the first elbow and the second elbow are respectively provided with a light guide column detachably connected with the first elbow and the second elbow;

the laser lamp detection assembly comprises lamp holders respectively arranged on the inner sides of the front ends of the first elbow and the second elbow, a laser lamp is arranged on each lamp holder, and a light homogenizing mirror, a lens group and a transparent glass cover are sequentially arranged on the front side of the laser lamp;

the light guide column comprises a light guide body, the rear end portion of the light guide body is provided with a connector which is detachably connected with the first elbow and the second elbow, the front end portion of the light guide column is provided with a light scattering surface, and the joint of the light guide column and the connector is provided with a bag protruding outwards.

Further, the light guide body and the connecting head are integrally formed.

Further, the light diffusion surface of the front end part of the light guide column is in a circular arc shape.

Furthermore, one end of the connecting head, which is connected with the first elbow and the second elbow, is provided with a circular groove.

Furthermore, the front end parts of the first elbow and the second elbow are provided with positioning bulges protruding inwards, and the connector is provided with an alignment structure and a limiting structure which are matched with the positioning bulges.

Further, the lens group comprises a convex lens arranged on the front side of the light-equalizing mirror and a concave lens arranged between the convex lens and the transparent glass cover, and the focal points of the concave lens and the convex lens are coincided.

Furthermore, a battery box and a control switch are arranged on the first holding part; a rechargeable battery and a controller are arranged in the battery box; and a driving unit connected with the controller and the rechargeable battery respectively is arranged in the lamp holder.

Further, the driving unit comprises a comparison amplifier U, a third capacitor C3, a fourth resistor R4, a photodiode Q and a triode T; the inverting input end of the comparison amplifier U is connected with the controller through a first resistor R1; the same-direction input end of the comparison amplifier U is respectively connected with one end of the third capacitor C3, one end of the fourth resistor R4 and the positive polarity end of the photosensitive diode Q, the output end of the comparison amplifier U is connected to the base electrode of the triode T through the second resistor R2, and a second capacitor C2 is connected between the reverse-direction input end of the comparison amplifier U and the output end of the comparison amplifier U; an emitting electrode of the triode T is connected with a power supply through a third resistor R3, and a collecting electrode of the triode T is connected with a positive end of the laser lamp; the other end of the third capacitor C3, the other end of the fourth resistor R4, the negative polarity end of the photosensitive diode Q and the negative polarity end of the laser lamp are all grounded.

Furthermore, a first lock catch is arranged on the first clamp arm, a second lock catch is arranged on the second clamp arm, a sliding hole is formed in the second lock catch, and a second fastener used for connecting the first lock catch and the second lock catch is arranged in the sliding hole.

The invention has the beneficial effects that:

1. through setting up one respectively at the front end of first elbow and second elbow rather than dismantling the leaded light post of being connected, make the leaded light post lead to its scattered plain noodles with the lamp bundle that the laser lamp sent, when needing to carry out the apex of the heart to explore, only need change new leaded light post can. The first elbow, the second elbow and the laser lamp detection component can not be contacted with the apex of the heart in the detection process, so that the condition of mutual infection among patients can be avoided.

2. The junction of leaded light post and connector is equipped with outside bellied bag, and apex of heart incision can be plugged up on the one hand to the bag, plays hemostatic effect, can also play the degree of depth that control leaded light post extended into the apex of heart on the one hand.

3. One end of the connector, which is connected with the first elbow and the second elbow, is provided with a circular groove, so that the material can be saved.

4. The light-equalizing mirror is arranged on the front side of the laser lamp, so that light beams emitted by the laser lamp are three times larger, an even light-emitting surface is formed, dark areas in the light-emitting surface can be eliminated, and the brightness of the light beams is even.

5. The collimated secondary laser beam can be obtained by arranging a lens group consisting of a convex lens and a concave lens at the front side of the light-equalizing lens.

6. By providing the control switch at the grip portion of the jawarms, the switching operation can be facilitated.

7. The first lock catch and the second lock catch are arranged, so that the situation that the first clamp arm and the second clamp arm are opened and closed excessively can be prevented carelessly in the probing process.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a schematic structural view of a laser light detection assembly according to one embodiment of the present invention;

FIG. 3 is a schematic structural view of a light guide bar according to an embodiment of the present invention;

FIG. 4 is a diagram of the optical path of a laser beam through a lens assembly according to an embodiment of the present invention

Fig. 5 is a control schematic diagram of a laser lamp according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a driving circuit according to an embodiment of the present invention.

Wherein: 1. a first clamp arm; 11. a first elbow; 12. a first holding portion; 2. a second jawarm; 21. a second elbow; 22. a second holding portion; 3. a first fastener; 4. a laser light detection assembly; 41. a lamp socket; 42. a laser light; 43. a light-equalizing mirror; 44. a convex lens; 45. a concave lens; 46. a transparent glass cover; 47. positioning the projection; 5. a battery case; 6. a control switch; 7. a first lock catch; 71. a second lock catch; 711. a slide hole; 8. a light guide pillar; 81. a light scattering surface; 9. a connector; 91. aligning structure; 92. a limiting structure; 93. a groove; 10. a pouch.

Detailed Description

An apex probing apparatus for use in cardiac surgery, as shown in figure 1, comprises first and second arms 1, 2 hingedly connected together by a first fastener 3; the front end part of the first clamp arm 1 is provided with a first elbow 11, and the rear end part of the first clamp arm 1 is provided with a first holding part 12; the front end of the second tong arm 2 is provided with a second elbow 21, and the rear end of the second tong arm 2 is provided with a second holding part 22. The first elbow 11 and the second elbow 21 are of hollow structures, the laser lamp 42 detection component 4 is arranged inside the front ends of the first elbow 11 and the second elbow 21 respectively, and the light guide columns 8 detachably connected with the first elbow 11 and the second elbow 21 are arranged at the front ends of the first elbow 11 and the second elbow 21 respectively.

Wherein, leaded light post 8 includes the light conductor, the back tip of light conductor be equipped with first elbow 11 and second elbow 21 can dismantle the connector 9 of connection, the preceding tip of leaded light post 8 is equipped with scattered plain noodles 81, leaded light post 8 with the junction of connector 9 is equipped with outside bellied bag 10. The laser lamp 42 detection component 4 comprises a lamp holder 41 which is respectively arranged at the inner side of the front end of the first elbow 11 and the inner side of the front end of the second elbow 21, a laser lamp 42 is arranged on the lamp holder 41, and a light equalizing mirror 43, a lens group and a transparent glass cover 46 are sequentially arranged at the front side of the laser lamp 42.

During detection, medical staff push the light guide column 8 to the apex of the heart, open the light source and slightly expand, the light beam can be seen outside the heart to penetrate through muscle brightness, the shape of the coronary artery can be clearly distinguished, the width of the opening forceps is fixed, the outer wall can be easily cut off by a knife outside the heart, and the corresponding portion inside the heart is the apex of the heart. This not only greatly reduces the handling of the heart during the operation, reduces the damage, but also greatly shortens the operation time.

According to the invention, the light guide column 8 guides the light beam emitted by the laser lamp 42 out of the light scattering surface 81, namely, the first elbow 11, the second elbow 21 and the detection component 4 of the laser lamp 42 are not contacted with the apex of the heart in the detection process, only the light guide column 8 needs to be positioned at the apex of the heart, and the new light guide column 8 is replaced when the next detection is carried out, so that the condition of mutual infection among patients can be avoided.

According to an embodiment of the application, the light guide with connector 9 integrated into one piece, its structural stability is good, can be convenient for whole leaded light post 8's installation change.

According to an embodiment of the present application, the light scattering surface 81 at the front end of the light guide post 8 is arc-shaped, so that the laser light 42 can be emitted in a divergent manner, and the medical staff can clearly see the shape of the whole coronary artery.

According to an embodiment of the present application, a circular groove 93 is formed at the end of the connecting head 9 connected to the first bend 11 and the second bend 21, so that material can be saved. In the actual packaging process, an elastic rubber sleeve with two open ends can be placed in the groove 93, and when the apex of the heart needs to be probed, the rubber sleeve in the groove 93 is taken out and sleeved at the joint of the connector 9 and the first elbow 11 and the second elbow 21.

According to an embodiment of the present application, the front end portions of the first elbow 11 and the second elbow 21 are provided with positioning protrusions 47 protruding inwards, and the connector 9 is provided with an alignment structure 91 and a limiting structure 92 matched with the positioning protrusions 47. Wherein counterpoint structure 91 is along the axial setting of connector 9 and one end open-ended counterpoint recess 93, and limit structure 92 is for wanting the setting along the footpath of connector 9 and with counterpoint structure 91 links the spacing recess 93 that passes through, counterpoint recess 93 and spacing recess 93 are L and set up the type and connect. When installing light guide column 8, only need with the protruding 47 of location slide in limit structure 92 along counterpoint structure 91 can install, like the same, when dismantling light guide column 8, only need with protruding 47 of location rotate out in the recess 93 that limit structure 92 formed, then to counterpoint structure 91 in the slip out can.

According to an embodiment of the present application, the lens group includes a convex lens 44 disposed at a front side of the light equalizing mirror 43 and a concave lens 45 disposed between the convex lens 44 and a transparent glass cover 46, and focal points of the concave lens and the convex lens coincide.

As shown in fig. 4, the laser beam is first focused by the convex lens 44 and converged toward the focal point, and the beam cross-sectional area when the laser beam is incident on the concave lens 45 is smaller than that when the laser beam is incident on the convex lens 44, and at this time, the laser beam is converged toward the focal point of the concave lens 45, and is then emitted again as parallel light after passing through the concave lens 45, that is, a collimated secondary laser beam is formed. Particularly, the incident surface of the light guide column 8 is preferably at the focal point of the lens group, and the brightness of the received light spot is maximum, so that medical staff can distinguish the shape of the coronary artery more clearly and accurately.

According to an embodiment of the present application, as shown in fig. 5, the first grip portion is provided with a battery box and a control switch, and the present invention facilitates the switching operation by providing the control switch 6 at the grip portion of the jawarms. The battery box is internally provided with a rechargeable battery and a controller, and the lamp holder is internally provided with a driving unit respectively connected with the controller and the rechargeable battery. When in use, the control switch 6 is used for controlling the rechargeable battery and the driving unit to work through the controller.

According to an embodiment of the present application, as shown in fig. 6, the driving unit includes a comparison amplifier U, a third capacitor C3, a fourth resistor R4, a photodiode Q, and a transistor T; the inverting input end of the comparison amplifier U is connected with the controller through a first resistor R1 to obtain a reference voltage; the same-direction input end of the comparison amplifier U is respectively connected with one end of the third capacitor C3, one end of the fourth resistor R4 and the positive polarity end of the photosensitive diode Q, the output end of the comparison amplifier U is connected to the base electrode of the triode T through the second resistor R2, and a second capacitor C2 is connected between the reverse-direction input end of the comparison amplifier U and the output end of the comparison amplifier U; a power supply end of the comparator is connected with a first capacitor C1 in parallel; an emitting electrode of the triode T is connected with a power supply through a third resistor R3, and a collecting electrode of the triode T is connected with a positive end of the laser lamp; the other end of the third capacitor C3, the other end of the fourth resistor R4, the negative polarity end of the photosensitive diode Q and the negative polarity end of the laser lamp are all grounded.

During operation, photosensitive diode Q can detect laser diode LD's luminous intensity, and luminous stronger as laser diode LD, then photosensitive diode Q responds to the resistance of light intensity back self and diminishes, makes fourth resistance R4 potential step-down simultaneously, and the voltage at the homophase input end of comparison amplifier U also becomes the step-down, makes the control to laser diode LD electric current through the mode of negative feedback regulation, has controlled laser diode LD's power simultaneously for laser diode LD's power keeps in stable state.

In addition, the output amplification factor of the comparison amplifier U can be adjusted by adjusting the first resistor R1, and the current of the laser lamp LD connected to the triode T can be controlled by the large action of the triode T (NPN tube) at the output end of the comparison amplifier U, so that the power of the triode T can be adjusted, and the power of the laser lamp LD can be adjusted. The first resistor R1 may be embodied as a knob-type variable resistor disposed on the grip. The second capacitor C2 can increase the level inversion speed and prevent voltage abrupt change from damaging the comparator

According to an embodiment of the application, the first latch 7 is arranged on the first clamp arm 1, the second latch 71 is arranged on the second clamp arm 2, the second latch 71 is provided with the sliding hole 711, and the second fastener for connecting the first latch 7 and the second latch 71 is arranged in the sliding hole 711, so that the situation that the first clamp arm 1 and the second clamp arm 2 are excessively opened and closed accidentally during an exploration process can be prevented.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. An apex exploration device for cardiac surgery, comprising a first clamp arm and a second clamp arm hinged together by a first fastener; the front end of the first clamp arm is provided with a first curved The rear end of the first clamp arm is provided with a first gripping portion; the front end portion of the second clamp arm is provided with a second elbow, and the rear end portion of the second clamp arm is provided with a second gripping portion, It is characterized in that,

The first elbow and the second elbow are hollow structures, and the front ends of the first elbow and the second elbow are respectively provided with a laser light detection component, and the front ends of the first elbow and the second elbow are respectively set. There is a light guide column detachably connected to it;

The laser light detection assembly includes lamp sockets respectively arranged on the inner sides of the front ends of the first elbow and the second elbow, the lamp sockets are provided with laser lights, and the front sides of the laser lights are sequentially provided with uniform light a mirror, a lens group and a transparent glass cover; the lens group includes a convex lens arranged on the front side of the homogenizing mirror and a concave lens arranged between the convex lens and the transparent glass cover, and the concave lens and the convex lens are focus overlap;

The light guide column includes a light guide body, the rear end of the light guide body is provided with a connector that is detachably connected to the first elbow and the second elbow, and the front end of the light guide column is provided with a light-scattering surface, so the An outwardly protruding pocket is provided at the connection between the light guide column and the connecting head.

2 . The apex exploration device for cardiac surgery according to claim 1 , wherein the light guide body and the connector are integrally formed. 3 .

3 . The apex exploration device for cardiac surgery according to claim 1 , wherein the astigmatic surface of the front end of the light guide column is in a circular arc shape. 4 .

4 . The apex exploration device for cardiac surgery according to claim 1 , wherein one end of the connector connected to the first elbow and the second elbow is provided with a circular concave. 5 . groove.

5 . The apex exploration device for cardiac surgery according to claim 1 , wherein the front ends of the first elbow and the second elbow are provided with inwardly protruding positioning protrusions, which are connected to the apex. 6 . The head is provided with an alignment structure and a limit structure matched with the positioning protrusion.

6 . The apex exploration device for cardiac surgery according to claim 2 , wherein a battery box and a control switch are arranged on the first holding part; and a rechargeable battery and a control switch are arranged in the battery box. 7 . a controller; the lamp holder is provided with driving units respectively connected with the controller and the rechargeable battery.

7. The apex exploration device for cardiac surgery according to claim 6, wherein the drive unit comprises a comparison amplifier U, a third capacitor C3, a fourth resistor R4, a photodiode Q and a triode T; The inverting input terminal of the comparative amplifier U is connected to the controller through the first resistor R1; the non-inverting input terminal of the comparative amplifier U is respectively connected to one end of the third capacitor C3, one end of the fourth resistor R4 and the photodiode. The positive terminal of Q is connected, the output terminal of the comparator U is connected to the base of the triode T through the second resistor R2, and a second capacitor C2 is connected between the reverse input terminal of the comparator amplifier U and its output terminal; The emitter of the triode T is connected to the power supply through the third resistor R3, and the collector of the triode T is connected to the positive end of the laser lamp; the other end of the third capacitor C3, the other end of the fourth resistor R4, The negative terminal of the photodiode Q and the negative terminal of the laser lamp are both grounded.

8 . The apex exploration device for cardiac surgery according to claim 1 , wherein a first lock is provided on the first clamp arm, and a second lock is provided on the second clamp arm. 9 . The second lock is provided with a sliding hole, and the sliding hole is provided with a second fastener for connecting the first lock and the second lock.