Regular cutting machine for gaskets for cardiac surgery

Abstract

The regular gasket cutting machine for the cardiac surgery comprises a cutting platform arranged in parallel and a cutting mechanism arranged above the cutting platform, the cutting mechanism comprises a pressing handle, a transverse cutter and a longitudinal cutter, one end of the pressing handle is in pin joint with the upper end face of the cutting platform, and the other end of the pressing handle is a free end. The transverse cutter and the longitudinal cutter are vertically arranged at the free end of the pressing handle respectively, blades face the upper end face of the cutting platform, a transverse positioning baffle and a longitudinal positioning baffle are arranged on the upper end face of the cutting platform, and a rectangle is defined by the transverse positioning baffle, the longitudinal positioning baffle, the transverse cutter and the longitudinal cutter so as to stop and position the edge of a gasket. When the pressing handle is pressed downwards, the transverse cutter and the longitudinal cutter can cut the gasket placed on the cutting platform at the same time, the distance between the transverse positioning baffle and the transverse cutter can be adjusted, the distance between the longitudinal positioning baffle and the longitudinal cutter can be adjusted, and the cutting size of the gasket can be positioned. And the cutting efficiency and the cutting precision are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gasket cutting for heart surgery, and particularly relates to a gasket cutting machine for heart surgery. BACKGROUND

[0002] In heart surgery, gaskets (felt or nylon) are used to assist in reinforcing and sealing at places where the incision has high tension, such as aortic suture and bleeding, especially in left ventricular assist device (LVAD) implantation surgery, where the gasket is sutured at the connection between the heart and the LVAD to reinforce and seal. The size of the gasket required for the heart of a patient of different ages and at different implant suture sites varies, and the gasket of the corresponding size needs to be accurately measured and cut during the surgery. In the past, the gasket was manually cut by the instrument nurse according to experience during the surgery, but the manual cutting has poor precision and the size of the gasket is likely to vary, which may affect the suture of the heart tissue if the size of the gasket is not appropriate, resulting in poor sealing at the connection of the heart, delaying the surgery process, and even causing the failure of the surgery in severe cases. SUMMARY

[0003] Therefore, it is necessary to provide a gasket cutting machine for heart surgery to solve the technical problem of poor manual cutting precision and the size variation of the gasket in the prior art.

[0004] The utility model discloses a technical scheme to solve the technical problem:

[0005] A gasket cutting machine for heart surgery, comprising a cutting platform and a cutting mechanism arranged above the cutting platform, wherein the cutting mechanism comprises a pressure handle, a horizontal cutting knife and a vertical cutting knife, one end of the pressure handle is pivotally connected to the upper end surface of the cutting platform, and the other end is a free end that can rotate freely up and down around the pivotally connected end of the pressure handle, the horizontal cutting knife and the vertical cutting knife are vertically arranged at the free end of the pressure handle, the horizontal cutting knife and the vertical cutting knife are perpendicular to each other, the adjacent ends are close to each other, and the cutting edges of the horizontal cutting knife and the vertical cutting knife are directed towards the upper end surface of the cutting platform, the upper end surface of the cutting platform is provided with a horizontal positioning baffle and a vertical positioning baffle, the horizontal positioning baffle and the vertical positioning baffle are arranged on the inner sides of the horizontal cutting knife and the vertical cutting knife respectively, the horizontal positioning baffle is parallel to the horizontal cutting knife, the vertical positioning baffle is parallel to the vertical cutting knife, and the horizontal positioning baffle and the vertical positioning baffle form a rectangle with the horizontal cutting knife and the vertical cutting knife to stop and position the edge of the gasket placed on the cutting platform, pressing the free end of the pressure handle downward can simultaneously cut the gasket placed on the cutting platform with the horizontal cutting knife and the vertical cutting knife, the distance between the horizontal positioning baffle and the horizontal cutting knife is adjustable, and the distance between the vertical positioning baffle and the vertical cutting knife is adjustable to adjust the cutting size of the gasket.

[0006] Preferably, an L-shaped slot is formed on the upper end surface of the cutting platform for simultaneously inserting the transverse cutting knife and the longitudinal cutting knife, the slot matches the transverse cutting knife and the longitudinal cutting knife, and the cutting edges of the transverse cutting knife and the longitudinal cutting knife can be inserted into the slot and form shearing force with the edges of the slot to cut the gasket.

[0007] Preferably, a transverse adjusting slot and a longitudinal adjusting slot are respectively arranged on the upper end surface of the cutting platform inside the slot, the transverse adjusting slot is arranged to extend in the direction of the longitudinal cutting knife, the longitudinal adjusting slot is arranged to extend in the direction of the transverse cutting knife, the longitudinal positioning baffle is clamped on the transverse adjusting slot and can move parallel to the transverse adjusting slot in the direction of the longitudinal cutting knife to adjust the distance between the cutting position of the longitudinal positioning baffle and the longitudinal cutting knife, and the transverse positioning baffle is clamped on the longitudinal adjusting slot and can move parallel to the longitudinal adjusting slot in the direction of the transverse cutting knife to adjust the distance between the cutting position of the transverse positioning baffle and the transverse cutting knife.

[0008] Preferably, a scale is arranged on one side of the upper end surface of the cutting platform between the transverse adjusting slot and the longitudinal adjusting slot.

[0009]

[0009] Preferably, one end of the cutting edge of the transverse cutting knife is higher than the other end and is arranged to be inclined, and one end of the cutting edge of the longitudinal cutting knife is higher than the other end and is arranged to be inclined.

[0010] Preferably, a first protection member is arranged on the outer side of the longitudinal cutting knife, the first protection member includes a first protection plate, a first sliding rod and a first spring, a protruding first fixing plate is arranged on one side of the longitudinal cutting knife, the first sliding rod is vertically inserted into the first fixing plate and can freely slide up and down along the first fixing plate, the first protection plate is arranged at the lower end of the first sliding rod and is located on the outer side of the longitudinal cutting knife and parallel to the longitudinal cutting knife, the first spring is sleeved on the first sliding rod, the upper end of the first spring abuts against the bottom of the first fixing plate, the lower end of the first spring abuts against the first protection plate, and a first stop block is arranged at the top of the first sliding rod, when the pressing handle is lifted, the first spring pushes the first protection plate to the lower side of the cutting edge of the longitudinal cutting knife to shield the cutting edge of the longitudinal cutting knife, and when the pressing handle is pressed to cut, the first protection plate is pressed on the gasket to be cut and is self-adaptively retracted upward.

[0011] Preferably, the lateral cutting knife is provided with a second retractable protective member on the outer side, the second protective member comprises a second protective plate, a second sliding rod and a second spring, the pressing handle is provided with a protruding second fixing plate on one side of the lateral cutting knife, the second sliding rod is vertically inserted into the second fixing plate and can freely slide along the second fixing plate, the second protective plate is arranged at the lower end of the second sliding rod and is located on the outer side of the lateral cutting knife and parallel to the lateral cutting knife, the second spring is sleeved on the second sliding rod, the upper end of the second spring abuts against the bottom of the second fixing plate, the lower end of the second spring abuts against the second protective plate, and a second stop block is arranged at the top of the second sliding rod, when the pressing handle is lifted, the second spring pushes the second protective plate to below the blade of the lateral cutting knife to shield the blade of the lateral cutting knife, and when the pressing handle is pressed to cut, the second protective plate is pressed on the gasket to be cut and is self-adaptively retracted upward.

[0012] Preferably, the cutting platform is provided with a pin seat, one end of the pressing handle is pinned to the pin seat through a pin shaft, a pin hole is formed on the other end of the pin seat towards the pressing handle, a detachable pin is inserted into the pin hole, and a insertion hole matched with the pin hole and capable of being coincided with each other is formed on the side wall of the pressing handle towards the pin hole, when the insertion hole is coincided with the pin hole by rotating the pressing handle, the pin can be inserted into the insertion hole along the pin hole to lock the pressing handle.

[0013] It can be known from the above technical solution that the gasket regular cutting machine for heart surgery provided by the application is pinned to the upper end face of the cutting platform at one end of the pressing handle and is a free end, the free end can freely rotate upward and downward around the pinned end of the pressing handle, the lateral cutting knife and the longitudinal cutting knife are vertically arranged at the free end of the pressing handle, the upper end face of the cutting platform is provided with a lateral positioning baffle and a longitudinal positioning baffle, the lateral positioning baffle and the longitudinal positioning baffle are arranged on the inner sides of the lateral cutting knife and the longitudinal cutting knife respectively and form a rectangle with the lateral cutting knife and the longitudinal cutting knife, the gasket edge is stopped and positioned by the lateral positioning baffle and the longitudinal positioning baffle, the spacing between the lateral positioning baffle and the lateral cutting knife is adjustable, the spacing between the longitudinal positioning baffle and the longitudinal cutting knife is adjustable, when the gasket is cut, the cutting size of the gasket can be positioned by adjusting the positions of the lateral positioning baffle and the longitudinal positioning baffle, so that the lateral cutting knife and the longitudinal cutting knife can cut the gasket at the same time, the cutting efficiency and the cutting precision are improved, repeated cutting can be carried out, and the phenomenon that the size of the secondly cut gasket is different from that of the firstly cut gasket is avoided, thereby the precision of heart surgery suturing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a side view structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 3 Another perspective view of the utility model.

[0017] Figure 4 A state diagram of the gasket being placed on the cutting platform for cutting

[0018] Figure 5 A state diagram of the pressure handle being lifted in another preferred embodiment.

[0019] Figure 6 A state diagram of the pressure handle being pressed in another preferred embodiment.

[0020] In the figure: cutting platform 10, cutting mechanism 20, pressure handle 21, horizontal cutting knife 22, vertical cutting knife 23, horizontal positioning baffle 11, vertical positioning baffle 12, notch 13, horizontal adjusting slot 14, vertical adjusting slot 15, scale 16, clamping seat 17, first protection 24, first protection plate 241, first sliding rod 242, first spring 243, first stop block 244, second protection 25, second protection plate 251, second sliding rod 252, second spring 253, second stop block 254, pin seat 17, pin shaft 18, pin hole 19, first fixed plate 26, second fixed plate 27, insertion hole 28, pin 29. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0022] Please refer to Figures 1 to 4The utility model discloses a kind of gasket rule cutting machines for heart surgery, including parallelly arranged cutting platform 10 and the cutting mechanism 20 being arranged above cutting platform 10, the cutting mechanism 20 includes press handle 21, transverse cutting knife 22 and longitudinal cutting knife 23, one end of press handle 21 is connected with the upper end surface pin of cutting platform 10, another end is free end, this free end can be freely rotated around the upper end surface pin of press handle 21, transverse cutting knife 22 and longitudinal cutting knife 23 are vertically arranged in the free end of press handle 21, transverse cutting knife 22 and longitudinal cutting knife 23 are perpendicular to each other, and its adjacent end portion is close to each other, and L shape is arranged, and blade is all towards the upper end surface of cutting platform 10, the upper end surface of cutting platform 10 is provided with transverse positioning baffle 11 and longitudinal positioning baffle 12, transverse positioning baffle 11 and longitudinal positioning baffle 12 are respectively arranged in the inner side of transverse cutting knife 22 and longitudinal cutting knife 23, transverse positioning baffle 11 is parallel to transverse cutting knife 22, longitudinal positioning baffle 12 is parallel to longitudinal cutting knife 23, transverse positioning baffle 11 and longitudinal positioning baffle 12 are adjacent arrangement, and mutually perpendicular, when transverse cutting knife 22 and longitudinal cutting knife 23 cut on the upper end surface of cutting platform 10, transverse positioning baffle 11 and longitudinal positioning baffle 12 form rectangle with transverse cutting knife 22 and longitudinal cutting knife 23, and the spacing between transverse positioning baffle 11 and transverse cutting knife 22 is adjustable, the spacing between longitudinal positioning baffle 12 and longitudinal cutting knife 23 is adjustable, when cutting gasket, manually lift press handle 21, make transverse cutting knife 22 and longitudinal cutting knife 23 away from the upper end surface of cutting platform 10, after doctor or nurse obtains the cutting size of gasket according to measurement, the spacing between transverse positioning baffle 11 and transverse cutting knife 22 is adjusted and the spacing between longitudinal positioning baffle 12 and longitudinal cutting knife 23 is adjusted, after determining cutting size, whole piece gasket (felt piece or nylon piece) is parallelly laid on the upper end surface of cutting platform 10, so that the top edge of whole piece gasket is placed on transverse positioning baffle 11, and the side edge of whole piece gasket is placed on longitudinal positioning baffle 12, after using transverse positioning baffle 11 and longitudinal positioning baffle 12 to stop and position the top edge and side edge of whole piece gasket, manually press press handle 21, and cutting platform 10 is cut simultaneously by transverse cutting knife 22 and longitudinal cutting knife 23, to cut out the gasket meeting the demand of operation.

[0023] Please refer to Figure 2 , for facilitating cutting, L-shaped notch 13 for transverse cutting knife 22 and longitudinal cutting knife 23 are simultaneously inserted is set on the upper end surface of the cutting platform 10, notch 13 is matched with transverse cutting knife 22 and longitudinal cutting knife 23, when cutting gasket, the blade of transverse cutting knife 22 and longitudinal cutting knife 23 can be inserted into notch 13, and shear force is formed with the edge of notch 13, and gasket is cut.

[0024] Please continue to see Figure 2 , in the upper end of the cutting platform 10 located in the slot 13 respectively provided with a lateral adjustment slot 14 and longitudinal adjustment slot 15, lateral adjustment slot 14 is opposite the direction of longitudinal cutting knife 23 open, longitudinal adjustment slot 15 is opposite the direction of the lateral cutting knife 22 open, the lower end of the longitudinal positioning baffle 12 is fixedly provided with a card seat 17 matched with the lateral adjustment slot 14, the card seat 17 is made of rubber, and is clamped in the lateral adjustment slot 14 and in frictional contact with the side wall of the lateral adjustment slot 14, the longitudinal positioning baffle 12 is limited on the upper end surface of the cutting platform 10 by the friction force, and can move parallelly along the lateral adjustment slot 14 to the direction of the longitudinal cutting knife 23, so as to adjust the distance between the cutting position of the longitudinal positioning baffle 12 and the longitudinal cutting knife 23; the lower end of the lateral positioning baffle 11 is also fixedly provided with a card seat made of rubber matched with the longitudinal adjustment slot 15, the card seat is clamped in the longitudinal adjustment slot 15 and in frictional contact with the side wall of the longitudinal adjustment slot 15, the lateral positioning baffle 11 is limited on the upper end surface of the cutting platform 10 by the friction force, and can move parallelly along the longitudinal adjustment slot 15 to the direction of the lateral cutting knife 22, so as to adjust the distance between the cutting position of the lateral positioning baffle 11 and the lateral cutting knife 22; when adjusting the positions of the longitudinal positioning baffle 12 and the lateral positioning baffle 11, the longitudinal positioning baffle 12 and the lateral positioning baffle 11 are respectively pushed by fingers to move along the lateral adjustment slot 14 and the longitudinal adjustment slot 15.

[0025] Please continue to see Figure 2 , by setting a scale 16 on one side of the upper end surface of the cutting platform 10 located in the lateral adjustment slot 14, and also setting a scale 16 on one side of the longitudinal adjustment slot 15, the distance between the cutting position of the lateral positioning baffle 11 and the lateral cutting knife 22 can be marked by the scale 16, and the distance between the cutting position of the longitudinal positioning baffle 12 and the longitudinal cutting knife 23 can be marked by the scale 16, so as to facilitate the doctor or nurse to quickly adjust and position the lateral positioning baffle 11 and the longitudinal positioning baffle 12 according to the scale 16.

[0026] Please see Figure 2 and Figure 4 , further, in order to facilitate the cutting of the gasket by the lateral cutting knife 22 and the longitudinal cutting knife 23, one end of the blade of the lateral cutting knife 22 is higher than the other end, and is inclined; one end of the blade of the longitudinal cutting knife 23 is higher than the other end, and is inclined, so that the lateral cutting knife 22 and the longitudinal cutting knife 23 can cut the gasket from the end of the gasket step by step during the cutting process.

[0027] It should be noted that the distance between the transverse positioning baffle 11 and the transverse cutting knife 22 does not exceed the end of the longitudinal cutting knife 23 away from the transverse cutting knife 22, the distance between the longitudinal positioning baffle 12 and the longitudinal cutting knife 23 does not exceed the end of the transverse cutting knife 22 away from the longitudinal cutting knife 23, and the lengths of the transverse cutting knife 22 and the longitudinal cutting knife 23 should be greater than the size of the cutting gasket to ensure the effectiveness of the cutting.

[0028] Please refer to Figure 5 and Figure 6 Further, the outer side of the longitudinal cutting knife 23 is provided with a retractable first protective member 24, the first protective member 24 comprises a first protective plate 241, a first sliding rod 242 and a first spring 243, the pressing handle 21 is provided with a protruding first fixing plate 26 on one side of the longitudinal cutting knife 23, the first sliding rod 242 is vertically inserted into the first fixing plate 26 and can freely slide up and down along the first fixing plate 26, the first protective plate 241 is arranged at the lower end of the first sliding rod 242 and is located outside the longitudinal cutting knife 23 and parallel to the longitudinal cutting knife 23, the first spring 243 is sleeved on the first sliding rod 242, the upper end of the first spring 243 abuts against the bottom of the first fixing plate 26, the lower end of the first spring 243 abuts against the first protective plate 241, and the first stop block 244 is arranged at the top of the first sliding rod 242, when the pressing handle 21 is lifted, the first spring 243 pushes the first protective plate 241 to below the blade of the longitudinal cutting knife 23 to shield the blade of the longitudinal cutting knife 23, the first stop block 244 stops at the upper end of the first fixing plate 26 to prevent the first sliding rod 242 from being separated from the first fixing plate 26, and when the pressing handle 21 is pressed to cut, the first protective plate 241 is pressed on the cutting gasket and is adapted to shrink upward.

[0029] Please continue to refer to Figure 5 and Figure 6The outer side of the transverse cutting knife 22 is provided with a second retractable protective member 25, which comprises a second protective plate 251, a second slide rod 252 and a second spring 253. The side of the pressing handle 21 provided with the transverse cutting knife 22 is provided with a protruding second fixing plate 27. The second slide rod 252 is vertically inserted into the second fixing plate 27 and can freely slide up and down along the second fixing plate 27. The second protective plate 251 is arranged at the lower end of the second slide rod 252 and is located at the outer side of the transverse cutting knife 22 and parallel to the transverse cutting knife 22. The second spring 253 is sleeved on the second slide rod 252. The upper end of the second spring 253 abuts against the bottom of the second fixing plate 27, and the lower end of the second spring 253 abuts against the second protective plate 251. A second stop block 254 is arranged at the top of the second slide rod 252. When the pressing handle 21 is lifted, the second spring 253 pushes the second protective plate 251 to the lower side of the blade of the transverse cutting knife 22 to shield the blade of the transverse cutting knife 22. The second stop block 254 is stopped at the upper end of the second fixing plate 27 to prevent the second slide rod 252 from being separated from the second fixing plate 27. When the pressing handle 21 is pressed to cut, the second protective plate 251 is pressed on the cutting gasket and is adapted to shrink upward.

[0030] Therefore, when the pressing handle 21 is lifted, the first protective plate 241 is pushed to the lower side of the blade of the longitudinal cutting knife 23 by the action force of the first spring 243 to shield the blade of the longitudinal cutting knife 23. The second protective plate 251 is pushed to the lower side of the blade of the transverse cutting knife 22 by the action force of the second spring 253 to shield the blade of the transverse cutting knife 22. The first protective plate 241 and the second protective plate 251 both have the shielding effect, which can avoid the exposure of the blades of the longitudinal cutting knife 23 and the transverse cutting knife 22 and prevent the fingers of the doctors or nurses from touching the blades during use to cause injury. In addition, during the cutting process, the first protective plate 241 and the second protective plate 251 are first pressed on the surface of the cutting gasket, which can fix the gasket and prevent the gasket from being displaced during the cutting process.

[0031] Please refer to Figure 2 In the above embodiment, the cutting platform 10 is provided with a pin seat 17. One end of the pressing handle 21 is connected to the pin seat 17 through a pin shaft 18. A pin hole 19 is formed in the pin seat 17 towards the other end of the pressing handle 21. A detachable pin 29 is inserted into the pin hole 19. An insertion hole 28 matching the pin hole 19 and capable of overlapping with the pin hole 19 is formed in the side wall of the pressing handle 21 towards the pin hole 19. During use, the pin 29 is pulled out. After use, the pressing handle 21 is rotated to make the insertion hole 28 overlap with the pin hole 19. Then the pin 29 can be inserted into the insertion hole 28 along the pin hole 19 to lock the pressing handle 21 and limit the movement of the pressing handle 21, so as to facilitate storage.

[0032] The device can position the cutting size of the gasket by adjusting the positions of the transverse positioning baffle 11 and the longitudinal positioning baffle 12, so that the transverse cutting knife 22 and the longitudinal cutting knife 23 cut the gasket at the same time, the cutting efficiency and the cutting precision are improved, repeated cutting can be carried out, the phenomenon that the size of the gasket cut for the second time is different from the size of the gasket cut for the first time is avoided, and then the precision of heart surgery suturing is improved.

[0033] The above only discloses the preferred embodiments of the utility model, of course, cannot with this to limit the utility model right range, the person skilled in the art can understand that all or part of the processes of the above-mentioned embodiments are implemented, and equivalent changes made according to the utility model claims still belong to the range covered by the utility model.

Claims

1. A heart surgery gasket rule cutting machine characterized by: The cutting mechanism comprises a pressing handle, a transverse cutting knife and a longitudinal cutting knife, one end of the pressing handle is fixedly arranged on the upper end surface of the cutting platform, and the other end is a free end which can rotate up and down around the fixed end, the transverse cutting knife and the longitudinal cutting knife are vertically arranged on the free end of the pressing handle, the transverse cutting knife and the longitudinal cutting knife are perpendicular to each other, the adjacent ends of the transverse cutting knife and the longitudinal cutting knife are close to each other, and the cutting edges of the transverse cutting knife and the longitudinal cutting knife are both directed to the upper end surface of the cutting platform, the upper end surface of the cutting platform is provided with a transverse positioning baffle and a longitudinal positioning baffle, the transverse positioning baffle and the longitudinal positioning baffle are arranged on the inner sides of the transverse cutting knife and the longitudinal cutting knife respectively, the transverse positioning baffle is parallel to the transverse cutting knife, the longitudinal positioning baffle is parallel to the longitudinal cutting knife, the transverse positioning baffle and the longitudinal positioning baffle form a rectangle with the transverse cutting knife and the longitudinal cutting knife to stop and position the edge of the gasket placed on the cutting platform, and the free end of the pressing handle can be pressed downward to make the transverse cutting knife and the longitudinal cutting knife cut the gasket placed on the cutting platform at the same time, the spacing between the transverse positioning baffle and the transverse cutting knife is adjustable, and the spacing between the longitudinal positioning baffle and the longitudinal cutting knife is adjustable to adjust the cutting size of the gasket.

2. The gasket rule cutting machine for cardiac surgery according to claim 1, characterized in that: An L-shaped slot is formed in the upper end surface of the cutting platform for the transverse cutting knife and the longitudinal cutting knife to be inserted at the same time, the slot is matched with the transverse cutting knife and the longitudinal cutting knife, and the cutting edges of the transverse cutting knife and the longitudinal cutting knife can be inserted into the slot to form shearing force with the edges of the slot to cut the gasket.

3. The gasket rule cutting machine for cardiac surgery according to claim 2, characterized in that: A transverse adjusting slot and a longitudinal adjusting slot are arranged on the inner side of the slot in the upper end surface of the cutting platform, the transverse adjusting slot is arranged in the direction of the longitudinal cutting knife, and the longitudinal adjusting slot is arranged in the direction of the transverse cutting knife, the longitudinal positioning baffle is clamped on the transverse adjusting slot and can move in parallel along the transverse adjusting slot in the direction of the longitudinal cutting knife to adjust the spacing between the cutting position of the longitudinal positioning baffle and the longitudinal cutting knife, and the transverse positioning baffle is clamped on the longitudinal adjusting slot and can move in parallel along the longitudinal adjusting slot in the direction of the transverse cutting knife to adjust the spacing between the cutting position of the transverse positioning baffle and the transverse cutting knife.

4. The gasket rule cutting machine for cardiac surgery according to claim 3, characterized in that: A scale is arranged on one side of the transverse adjusting slot and the longitudinal adjusting slot in the upper end surface of the cutting platform.

5. The gasket rule cutting machine for cardiac surgery according to claim 4, characterized in that: The cutting edge of the transverse cutting knife is higher at one end than at the other end, and is arranged in an inclined manner, and the cutting edge of the longitudinal cutting knife is higher at one end than at the other end, and is arranged in an inclined manner.

6. The cutting machine for a gasket for a heart surgery according to claim 1 or 5, wherein: The outer side of the longitudinal cutting knife is provided with a telescopic first protection member, the first protection member comprises a first protection plate, a first sliding rod and a first spring, the side of the pressing handle provided with the longitudinal cutting knife is provided with a protruding first fixing plate, the first sliding rod is vertically inserted on the first fixing plate and can freely slide up and down along the first fixing plate, the first protection plate is arranged at the lower end of the first sliding rod and is located on the outer side of the longitudinal cutting knife and parallel to the longitudinal cutting knife, the first spring is sleeved on the first sliding rod, the upper end of the first spring abuts against the bottom of the first fixing plate, the lower end of the first spring abuts against the first protection plate, and a first stop block is arranged at the top of the first sliding rod, when the pressing handle is lifted, the first spring pushes the first protection plate to below the blade of the longitudinal cutting knife to shield the blade of the longitudinal cutting knife, and when the pressing handle is pressed to cut, the first protection plate is pressed on the cutting gasket and is adapted to shrink upwards.

7. The cutting machine for the gasket for the heart surgery according to claim 1 or 5, characterized in that: The outer side of the longitudinal cutting knife is provided with a telescopic first protection member, the first protection member comprises a first protection plate, a first sliding rod and a first spring, the side of the pressing handle provided with the longitudinal cutting knife is provided with a protruding first fixing plate, the first sliding rod is vertically inserted on the first fixing plate and can freely slide up and down along the first fixing plate, the first protection plate is arranged at the lower end of the first sliding rod and is located on the outer side of the longitudinal cutting knife and parallel to the longitudinal cutting knife, the first spring is sleeved on the first sliding rod, the upper end of the first spring abuts against the bottom of the first fixing plate, the lower end of the first spring abuts against the first protection plate, and a first stop block is arranged at the top of the first sliding rod, when the pressing handle is lifted, the first spring pushes the first protection plate to below the blade of the longitudinal cutting knife to shield the blade of the longitudinal cutting knife, and when the pressing handle is pressed to cut, the first protection plate is pressed on the cutting gasket and is adapted to shrink upwards.

8. The cutting machine for the gasket for the heart surgery according to claim 1 or 5, characterized in that: The cutting platform is provided with a pin seat, one end of the pressing handle is pinned to the pin seat through a pin shaft, a pin hole is horizontally formed on the other end of the pin seat facing the pressing handle, a detachable pin is inserted in the pin hole, and a plug hole matched with the pin hole and capable of being coincided with each other is formed in the side wall of the pressing handle facing the pin hole, when the plug hole is coincided with the pin hole by rotating the pressing handle, the pin can be inserted into the plug hole along the pin hole to lock the pressing handle.

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