Automatic aorta purse-string stitching instrument

Abstract

The invention provides an automatic aorta purse-string suturing instrument, belongs to the technical field of medical instruments, and aims to solve the problem that in the prior art, the operation difficulty of manual suturing is quite high. Comprising a shell, a notch is formed in one end of the shell in a penetrating mode, a suture needle is arranged in the shell, a rotating shaft rotationally connected with the shell is arranged in the center of the shell and driven by a motor, a connecting rod is arranged on the side wall of the rotating shaft, and a first clamping piece used for clamping the suture needle is arranged at the end, away from the rotating shaft, of the connecting rod; and a second clamping piece for clamping the suture needle is arranged in the shell. According to the aorta suture device, the device can be attached to the aorta of a patient through the gap of an arc-shaped structure, the suture needle can be driven to do circular motion through the first clamping piece, the second clamping piece, the rotating shaft, the connecting rod and the motor, the suture needle penetrates through the tissue of the patient through the gap, and the needle and the thread are brought into the tissue of the patient; most operation in the whole process does not need manual operation, and the operation risk is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an automatic aortic purse-string suture device. Background Art

[0002] The heart, as one of the indispensable organs in humans and vertebrates, is a vital source of power in the circulatory system. The human heart is roughly the size of a fist and looks like a plump peach. It sits elegantly on the diaphragm of the chest cavity, gently embraced by the two lungs and slightly to the left. This life pump is mainly composed of strong myocardium, with an exquisite internal structure. It is divided into four chambers: the left atrium, the left ventricle, the right atrium, and the right ventricle. The left and right atria and the left and right ventricles are tightly separated by solid partitions, ensuring that blood circulates independently in their respective chambers without interfering with each other.

[0003] As one of the most important blood vessels in the body, the aorta has a vital function. It is precisely divided into two major branches, the ascending aorta and the descending aorta, by the tough aortic valve. The ascending aorta is directly connected to the left ventricle and plays a key role in efficiently pumping oxygen-rich blood out of the heart, ensuring that the blood circulation starts with sufficient power. The descending aorta is like a winding river, transporting this source of life to various distal parts of the body, covering a wide range of areas such as the head, upper limbs, chest and even abdomen, nourishing every cell and tissue.

[0004] like Fig.12 As shown in the figure, during heart surgery, a circular purse needs to be manually sutured on the heart's aorta. However, manual suturing is very difficult, which not only requires medical staff to have extremely high professional skills and rich clinical experience, but also requires them to maintain a high degree of concentration and stability in a tense and delicate surgical environment. Such high standards undoubtedly increase the risk of surgery. Summary of the invention

[0005] In view of this, the present invention provides an aortic purse-string automatic suture device to solve the problem in the prior art that, during cardiac surgery, a circular purse-string needs to be manually sutured on the aorta of the heart. However, manual suturing is quite difficult, which not only requires medical personnel to have extremely high professional skills and rich clinical experience, but also requires them to maintain a high degree of concentration and stability in a tense and delicate surgical environment. Such high standards undoubtedly increase the risk of surgery.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An aortic purse-string automatic suture device comprises a shell, which is circular in shape and has a notch extending through one end of the shell, wherein the notch is an upwardly concave arc-shaped structure, a suturing needle is arranged in the shell, and the suturing needle is arranged along the circumference of the shell, a rotating shaft rotatably connected to the shell is arranged at the center of the shell, the rotating shaft is driven by a motor, a connecting rod is arranged on the side wall of the rotating shaft, the connecting rod is arranged along the radial direction of the rotating shaft, and a first clamping piece for clamping the suturing needle is provided at the end of the connecting rod away from the rotating shaft, and a second clamping piece for clamping the suturing needle is provided at a position near the notch in the shell.

[0008] In this technical solution, it should be noted that the suture needle is a suture needle with an arc structure, the suture needle is concentric with the shell, the needle tail of the suture needle is connected with a needle thread, and the notch of the arc structure can fit the patient's aorta. In this solution, when the patient is purse-strap sutured, the notch of the shell is placed at the patient's tissue to be sutured. In the initial state (such as Figure 2 As shown in the figure, the first clamping member and the second clamping member are respectively clamped at the two ends of the suture needle, and the needle head of the suture needle is located at a position close to the notch of the housing. Then, the motor is started, and the motor drives the rotating shaft to rotate counterclockwise, and the rotating shaft rotates counterclockwise to drive the connecting rod to rotate counterclockwise, and the connecting rod drives the first clamping member to rotate counterclockwise, and then drives the suture needle to rotate counterclockwise. During the process of the first clamping member rotating to contact with the second clamping member, the needle head of the suture needle penetrates from one end of the patient's tissue and passes out from the other end of the patient's tissue. At this time, the state is as shown in the figure. Figure 3 As shown, the second clamping member is clamped at the tail of the suture needle, and the needle head of the suture needle is inserted into the housing from the other end of the notch. Then, the first clamping member releases the suture needle and the first motor is started again. The first motor drives the connecting rod to rotate clockwise until the connecting rod rotates the first clamping member to the needle head of the suture needle (as shown in FIG. Figure 4 As shown), the motor is turned off, and the first clamping member clamps the needle of the suture needle again, and then the motor is started again, so that the motor drives the connecting rod and the first clamping member to rotate counterclockwise, thereby causing the needle tail of the suture needle to pass through the patient's tissue (as shown in FIG. Figure 5 As shown), the needle and thread can be brought into the patient's tissue; subsequently, the notch of the shell is placed at different positions of the patient's tissue, and the above operation is repeated to complete the suturing of the purse string. Finally, the needle and thread can be shortened by medical staff. In summary, in the present invention, by setting a notch of an arc-shaped structure, the device can be fitted with the patient's aorta, and by setting a first clamp, a second clamp, a rotating shaft, a connecting rod and a motor, the suture needle can be driven to perform circular motion, and the suture needle can pass through the patient's tissue through the notch to bring the needle and thread into the patient's tissue. Most of the operations in the whole process do not require manual operation, which reduces the risk of the operation.

[0009] Preferably, the first clamping member includes a first plate body and a second plate body arranged at an interval, the first plate body is connected to a connecting rod, the first plate body and the second plate body are connected via a first connecting plate, a first fixed plate is provided between the first plate body and the second plate body, the first fixed plate is slidably connected to the first connecting plate, a clamping space for clamping a suture needle is formed between the first fixed plate and the second plate body, the first clamping member also includes a driving device for driving the first fixed plate to move, the driving device includes an electric telescopic rod provided on the first plate body, one end of the electric telescopic rod is connected to the first plate body, and the other end is connected to the first fixed plate.

[0010] In this technical solution, it should be noted that when the suture needle needs to be clamped by the first clamping member, the electric telescopic rod is started, the electric telescopic rod is extended, and the first fixed plate is driven to move closer to the second plate body, thereby reducing the distance between the first fixed plate and the second plate body, so that the suture needle can be clamped. Similarly, when the suture needle needs to be released, the electric telescopic rod is started to shrink the electric telescopic rod.

[0011] Preferably, the electric telescopic rod is electrically connected to the motor. When the motor drives the rotating shaft to rotate counterclockwise, the electric telescopic rod extends to drive the first fixed plate to move in a direction close to the second plate body to clamp the suture needle. When the motor drives the rotating shaft to rotate clockwise, the electric telescopic rod contracts to drive the first fixed plate to move in a direction away from the second plate body to release the suture needle.

[0012] In this technical solution, it should be noted that the suture needle needs to be clamped to drive the suture needle to move only when the first clamping member rotates counterclockwise, and when the first clamping member rotates clockwise, the first clamping member will release the suture needle to prevent the suture needle from moving clockwise. Therefore, in order to realize that the first clamping member automatically clamps or releases the suture needle, this solution sets the electric telescopic rod to be electrically connected to the motor according to the characteristics of the clockwise and counterclockwise movements of the above-mentioned first clamping member. When the motor drives the rotating shaft to rotate clockwise, the electric telescopic rod contracts to drive the first fixed plate to move away from the fixed plate. The second plate moves in the direction of the first plate to loosen the suture needle; the specific principle is: in the initial state (as shown in the figure), the first clamping member and the second clamping member are respectively clamped on the two ends of the suture needle, and the needle head of the suture needle is located at a position close to the notch of the shell. Then, the motor is started, and the motor drives the rotating shaft to rotate counterclockwise. At this time, the electric telescopic rod receives a signal that the rotating shaft rotates counterclockwise, and then the electric telescopic rod extends, driving the first fixed plate to move closer to the second plate to clamp the suture needle. Then, the rotating shaft rotates counterclockwise and drives the connecting rod to rotate counterclockwise, and the connecting rod drives the first clamping member to rotate counterclockwise, thereby driving The suture needle rotates counterclockwise, and the first clamping piece rotates to contact with the second clamping piece. The needle head of the suture needle penetrates from one end of the patient's tissue and comes out from the other end of the patient's tissue. The state at this time is as shown in the figure. The second clamping piece is clamped at the needle tail of the suture needle, and the needle head of the suture needle penetrates into the housing from the other end of the notch. Then, the first motor is started again, and the first motor drives the connecting rod to rotate clockwise. At this time, the electric telescopic rod receives a signal that the rotating shaft rotates clockwise, and then the electric telescopic rod contracts to release the suture needle. Then the connecting rod rotates the first clamping piece to the needle head of the suture needle When the suture needle is in the state of being clamped, the motor is turned off, and then the motor is started again, so that the motor drives the connecting rod and the first clamping member to rotate counterclockwise. At this time, the electric telescopic rod receives the signal that the rotating shaft rotates counterclockwise, and then the electric telescopic rod extends, driving the first fixed plate to move closer to the second plate body, clamping the suture needle to drive the suture needle to rotate counterclockwise, and then the needle tail of the suture needle also passes through the patient's tissue, so that the needle and thread can be brought into the patient's tissue; subsequently, the notch of the shell is placed at different positions of the patient's tissue, and the above operation is repeated to complete the suturing of the purse string, and finally, the needle and thread can be shortened by medical staff.

[0013] Preferably, a first pressure sensor and a second pressure sensor are respectively provided at both ends of the first plate body, the first pressure sensor and the second pressure sensor are respectively electrically connected to the motor, and a baffle is provided in the shell, the baffle faces the first pressure sensor.

[0014] In the technical solution of this machine, it should be noted that when the first pressure sensor contacts the second clamping member, it means that the first clamping member has moved the needle tail of the suture needle to the position of the second clamping member. At this time, the motor rotates clockwise, driving the first clamping member to rotate clockwise to the other end of the notch. When the second pressure sensor contacts the baffle, it means that the second clamping member has moved to the needle head of the suture needle. At this time, the motor rotates clockwise, driving the suture needle to penetrate the needle thread into the patient's tissue, thereby realizing the automation of the process.

[0015] Preferably, the second clamping member includes a third plate body and a fourth plate body which are spaced apart from each other, the third plate body and the fourth plate body are connected by a second connecting plate, a second fixing plate and a third fixing plate are arranged between the third plate body and the fourth plate body, the second fixing plate and the third fixing plate are respectively slidably connected to the second connecting plate, a clamping space for clamping a suture needle is formed between the second fixing plate and the third fixing plate, and the second fixing plate and the third plate body, as well as the third fixing plate and the fourth plate body, are respectively connected by a first spring.

[0016] In this technical solution, it should be noted that the second clamping member in the present invention mainly plays the role of continuing to fix the suture needle after the first clamping member loosens the suture needle to prevent the suture needle from position displacement. Therefore, in this solution, the second fixing plate and the third fixing plate can clamp and fix the suture needle through the elastic force of the first spring.

[0017] Preferably, the second fixing plate and the third fixing plate are respectively provided with a first guide surface at one end away from the notch, the guide surfaces are arranged obliquely, and the two first guide surfaces form an eight-shaped structure.

[0018] In this technical solution, it should be noted that the distance between the second fixing plate and the third fixing plate is smaller than the diameter of the suture needle. By setting the first guide surface, before the suture needle is inserted into the second fixing plate and the third fixing plate, the second fixing plate and the third fixing plate will be pushed outward by the first guide surface, so that the first spring is compressed, and then the suture needle can be clamped by the second fixing plate and the third fixing plate after the suture needle is inserted into the second fixing plate and the third fixing plate.

[0019] Preferably, a mounting seat is further provided at one end inside the shell, a first mounting groove is provided at one end of the mounting seat facing the side wall of the shell, a third pressure sensor is provided at the bottom of the first mounting groove, the third pressure sensor is electrically connected to the motor, a first pressure block is also slidably embedded in the first mounting groove, the first pressure block is connected to the first mounting groove through a second spring, an end of the first pressure block away from the third pressure sensor extends outside the first mounting groove, and a second guide surface is provided at one end of the first pressure block away from the third pressure sensor, the second guide surface is inclined, and a second right-angle surface is provided at one end of the first pressure block away from the second guide surface, and the second right-angle surface is perpendicular to the first pressure block. The cam is configured to move the second spring against the second guide surface and the second guide surface is configured to move the second spring against the second guide surface.

[0020] In this technical solution, it should be noted that in the initial state (such as Figure 2 As shown in the figure, the first clamping member and the second clamping member are respectively clamped at the two ends of the suture needle, and the needle head of the suture needle is located at a position close to the notch of the shell. Then, the motor is started, and the motor drives the rotating shaft to rotate counterclockwise. At this time, the electric telescopic rod receives a signal that the rotating shaft rotates counterclockwise, and then the electric telescopic rod extends, driving the first fixed plate to move closer to the second plate body to clamp the suture needle. Then, the rotating shaft rotates counterclockwise and drives the connecting rod to rotate counterclockwise. The connecting rod drives the first clamping member to rotate counterclockwise, and then drives the suture needle to rotate counterclockwise. During the process of the first clamping member rotating to contact with the second clamping member, the needle head of the suture needle penetrates from one end of the patient's tissue and penetrates from the other end of the patient's tissue. At this time, the state is as shown in the figure. Figure 3 As shown, the second clamping member is clamped at the tail of the suture needle, and the needle head of the suture needle penetrates into the housing from the other end of the notch. Then, the motor is started again, and the motor drives the connecting rod to rotate clockwise. At this time, the electric telescopic rod receives a signal that the rotating shaft rotates clockwise, and then the electric telescopic rod contracts to release the suture needle. After that, the connecting rod rotates the first clamping member to the needle head of the suture needle (as shown in FIG. Figure 4 As shown), the motor is turned off, and then the motor is started again, so that the motor drives the connecting rod and the first clamping member to rotate counterclockwise. At this time, the electric telescopic rod receives the signal of the counterclockwise rotation of the rotating shaft, and then the electric telescopic rod extends, driving the first fixing plate to move closer to the second plate body, clamping the suture needle, so as to drive the suture needle to rotate counterclockwise, and then the needle tail of the suture needle also passes through the patient's tissue (as shown in FIG. Figure 5 As shown), the needle and thread can be brought into the patient's tissue to complete the first threading operation (the state is as shown in the figure). Figure 5 As shown), subsequently, the notch of the housing is placed at another position of the patient's tissue, and the motor is started, and the motor continues to drive the first clamping member and the suture needle to rotate counterclockwise to rotate the needle head of the suture needle to the position of the second clamping member (the state at this time is as shown in FIG. Figure 7 As shown in the figure, during the counterclockwise rotation of the first clamping member, the first pressure block will contact the second pressure block. Since the second guide surface of the first pressure block faces the third right-angled surface of the second pressure block in the counterclockwise direction, when the second guide surface contacts the second right-angled surface, the second right-angled surface will squeeze the second guide surface. After the second guide surface is subjected to the pressure of the second right-angled surface, the pressure will be decomposed into a direction perpendicular to the first installation groove, thereby causing the first pressure block to shrink into the first installation groove, while the second pressure block will not shrink into the second installation groove at this time, that is, the second pressure block will not contact the third pressure sensor. Subsequently, when the upper first pressure sensor of the first clamping member contacts the first clamping member, the motor drives the first clamping member to rotate clockwise (as shown in the figure). Figure 8 ), when the second right-angle surface on the first pressure block passes through the third guide surface on the second pressure block (the principle is the same as above), the second pressure block is pressed into the second mounting groove and touches the third pressure sensor. The third sensor sends a signal to the motor, and the motor drives the first clamping member to rotate counterclockwise (the subsequent threading process is the same as the first threading process, and when the first clamping member rotates counterclockwise again to return to the other end of the notch, although the second pressure block will also be compressed at this time, the system can be set so that the motor will not be triggered by the third pressure sensor at this time).

[0021] Preferably, a wire hole is provided through one side of the shell.

[0022] Preferably, a handle is provided at one end of the shell away from the notch.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] In the present invention, by setting a notch in an arc-shaped structure, the device can be fitted with the patient's aorta. By setting the first clamping member, the second clamping member, the rotating shaft, the connecting rod and the motor, the suture needle can be driven to make a circular motion, and the suture needle can pass through the patient's tissue through the notch to bring the needle and thread into the patient's tissue. Most of the operations in the whole process do not require manual operation, thereby reducing the risk of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention;

[0028] Figure 3 for Figure 2 Schematic diagram of the structure of the suture needle passing through human tissue;

[0029] Figure 4 It is a schematic diagram of the structure when the first clamping member in 3 is rotated to the other end of the notch;

[0030] Figure 5 for Figure 4 A schematic diagram of the structure in which the first clamping member drives the suture needle to continue to rotate counterclockwise;

[0031] Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure when the first clamping member rotates to the mounting seat;

[0032] Figure 7 for Figure 6 A schematic diagram of the structure in which the first clamping member drives the needle head of the suture needle to rotate to the second clamping member;

[0033] Figure 8 for Figure 6 A schematic diagram of the structure in which the first clamping member rotates clockwise to the needle tail of the suture needle;

[0034] Fig. 9 is a schematic diagram of the three-dimensional structure of the second clamping member of the present invention;

[0035] Fig.10 It is a three-dimensional structural schematic diagram of the first clamping member and the mounting seat of the present invention;

[0036] Fig.11 It is a schematic diagram of the three-dimensional structure of the first clamping member and the connecting rod of the present invention;

[0037] Fig.12 A schematic diagram of the structure of a heart in the prior art;

[0038] Wherein: 1-shell, 2-rotating shaft, 3-motor, 4-connecting rod, 5-handle, 6-first clamping member, 61-first plate, 611-first pressure sensor, 612-second pressure sensor, 62-second plate, 63-first connecting plate, 64-first fixing plate, 65-electric telescopic rod, 66-second mounting groove, 67-third spring, 68-second pressing block, 69-third guide surface, 70-third right-angle surface, 7-suture needle, 8-second clamping member, 81-third plate, 82-fourth plate, 83-second fixing plate, 84-first guide surface, 85-first spring, 86-third fixing plate, 9-notch, 10-baffle, 11-mounting seat, 111-first mounting groove, 112-second spring, 113-third pressure sensor, 114-first pressing block, 115-second guide surface, 116-second right-angle surface, 12-tissue. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0045] Example

[0046] like Figure 1-Figure 11 As shown, an embodiment of the present invention discloses an aortic purse-string automatic suture device, including a shell 1, the shell 1 is circular in shape, one end of the shell 1 is penetrated by a notch 9, the notch 9 is an upwardly concave arc structure, a suture needle 7 is arranged in the shell 1, the suture needle 7 is arranged along the circumference of the shell 1, a rotating shaft 2 rotatably connected to the shell 1 is provided at the center of the shell 1, the rotating shaft 2 is driven by a motor 3, a connecting rod 4 is provided on the side wall of the rotating shaft 2, the connecting rod 4 is arranged along the radial direction of the rotating shaft 2, and the end of the connecting rod 4 away from the rotating shaft 2 is provided with a first clamping piece 6 for clamping the suture needle 7, and a second clamping piece 8 for clamping the suture needle 7 is provided at a position near the notch 9 in the shell 1. It should be noted that the suture needle 7 is an arc-shaped suture needle 7, the suture needle 7 is concentric with the housing 1, the needle tail of the suture needle 7 is connected with a needle thread, and the notch 9 of the arc-shaped structure can fit the patient's aorta. In this solution, when the patient is purse-strap sutured, the notch 9 of the housing 1 is placed at the patient's tissue 12 to be sutured. In the initial state (such as Figure 2 As shown in the figure, the first clamping member 6 and the second clamping member 8 are respectively clamped at the two ends of the suture needle 7, and the needle head of the suture needle 7 is located at the position of the housing 1 close to the notch 9. Then, the motor 3 is started, and the motor 3 drives the rotating shaft 2 to rotate counterclockwise, and the rotating shaft 2 rotates counterclockwise and then drives the connecting rod 4 to rotate counterclockwise, and the connecting rod 4 drives the first clamping member 6 to rotate counterclockwise, and then drives the suture needle 7 to rotate counterclockwise. During the process of the first clamping member 6 rotating to contact with the second clamping member 8, the needle head of the suture needle 7 penetrates from one end of the patient's tissue 12 and penetrates from the other end of the patient's tissue 12. At this time, the state is as shown in the figure. Figure 3As shown, the second clamping member 8 is clamped at the needle tail of the suture needle 7, and the needle head of the suture needle 7 is inserted into the housing 1 from the other end of the notch 9. Then, the first clamping member 6 releases the suture needle 7 and the first motor 3 is started again. The first motor 3 drives the connecting rod 4 to rotate clockwise until the connecting rod 4 rotates the first clamping member 6 to the needle head of the suture needle 7 (as shown in FIG. Figure 4 As shown), the motor 3 is turned off, and the first clamping member 6 clamps the needle head of the suture needle 7 again, and then the motor 3 is started again, so that the motor 3 drives the connecting rod 4 and the first clamping member 6 to rotate counterclockwise, so that the needle tail of the suture needle 7 also passes through the patient's tissue 12 (as shown in FIG. Figure 5 As shown), the needle and thread can be brought into the patient's tissue 12; subsequently, the notch 9 of the shell 1 is placed at different positions of the patient's tissue 12, and the above operation is repeated to complete the suturing of the purse string. Finally, the needle and thread can be shortened by medical staff. In summary, in the present invention, by setting the notch 9 with an arc-shaped structure, the device can be fitted with the patient's aorta, and the first clamping member 6, the second clamping member 8, the rotating shaft 2, the connecting rod 4 and the motor 3 can drive the suture needle 7 to make a circular motion, and the suture needle 7 can pass through the patient's tissue 12 through the notch 9 to bring the needle and thread into the patient's tissue 12. Most of the operations in the whole process do not require manual operation, which reduces the risk of the operation.

[0047] like Fig.10 and Fig.11 As shown, in the present embodiment, the first clamping member 6 comprises a first plate body 61 and a second plate body 62 which are spaced apart from each other, the first plate body 61 is connected to the connecting rod 4, the first plate body 61 and the second plate body 62 are connected via a first connecting plate 63, a first fixing plate 64 is arranged between the first plate body 61 and the second plate body 62, the first fixing plate 64 is slidably connected to the first connecting plate 63, a clamping space for clamping the suture needle 7 is formed between the first fixing plate 64 and the second plate body 62, the first clamping member 6 also comprises a driving device for driving the first fixing plate 64 to move, the driving device comprises an electric telescopic rod 65 arranged on the first plate body 61, one end of the electric telescopic rod 65 is connected to the first plate body 61, and the other end is connected to the first fixing plate 64. It should be noted that when the suture needle 7 needs to be clamped by the first clamping member 6, the electric telescopic rod 65 is started, the electric telescopic rod 65 is extended, and the first fixed plate 64 is driven to move closer to the second plate body 62, thereby reducing the distance between the first fixed plate 64 and the second plate body 62, so that the suture needle 7 can be clamped. Similarly, when the suture needle 7 needs to be released, the electric telescopic rod is started to shrink the electric telescopic rod 65.

[0048] In this embodiment, the electric telescopic rod 65 is electrically connected to the motor 3. When the motor 3 drives the rotating shaft 2 to rotate counterclockwise, the electric telescopic rod 65 extends to drive the first fixed plate 64 to move in a direction close to the second plate body 62 to clamp the suture needle 7. When the motor 3 drives the rotating shaft 2 to rotate clockwise, the electric telescopic rod 65 contracts to drive the first fixed plate 64 to move in a direction away from the second plate body 62 to release the suture needle 7. It should be noted that, since the suture needle 7 needs to be clamped only when the first clamping member 6 rotates counterclockwise to drive the suture needle 7 to move, and when the first clamping member 6 rotates clockwise, the first clamping member 6 will release the suture needle 7 to prevent the suture needle 7 from moving clockwise, therefore, in order to realize that the first clamping member 6 automatically clamps or releases the suture needle 7, the present solution is configured to be electrically connected to the motor 3 according to the characteristics of the clockwise and counterclockwise movements of the first clamping member 6. When the motor 3 drives the rotating shaft 2 to rotate clockwise, the electric telescopic rod 65 contracts to drive the first fixed plate 64 to move in a direction away from the second plate body 62 to release the suture needle 7; the specific principle is: in the initial state (such as Figure 2 As shown in the figure, the first clamping member 6 and the second clamping member 8 are respectively clamped at the two ends of the suture needle 7, and the needle head of the suture needle 7 is located at the position of the housing 1 close to the notch 9. Then, the motor 3 is started, and the motor 3 drives the rotating shaft 2 to rotate counterclockwise. At this time, the electric telescopic rod 65 receives the signal of the counterclockwise rotation of the rotating shaft 2, and then the electric telescopic rod 65 extends, driving the first fixed plate 64 to move closer to the second plate body 62 to clamp the suture needle 7. Then, the rotating shaft 2 rotates counterclockwise and then drives the connecting rod 4 to rotate counterclockwise. The connecting rod 4 drives the first clamping member 6 to rotate counterclockwise, and then drives the suture needle 7 to rotate counterclockwise. During the process of the first clamping member 6 rotating to contact with the second clamping member 8, the needle head of the suture needle 7 penetrates from one end of the patient's tissue 12 and penetrates from the other end of the patient's tissue 12. At this time, the state is as shown in the figure. Figure 3 As shown, the second clamping member 8 is clamped at the needle tail of the suture needle 7, and the needle head of the suture needle 7 is inserted into the housing 1 from the other end of the notch 9. Then, the first motor 3 is started again, and the first motor 3 drives the connecting rod 4 to rotate clockwise. At this time, the electric telescopic rod 65 receives the signal of the clockwise rotation of the rotating shaft 2, and then the electric telescopic rod 65 contracts to release the suture needle 7. After that, when the connecting rod 4 rotates the first clamping member 6 to the needle head of the suture needle 7 (as shown in FIG. Figure 4As shown), the motor 3 is turned off, and then the motor 3 is started again, so that the motor 3 drives the connecting rod 4 and the first clamping member 6 to rotate counterclockwise. At this time, the electric telescopic rod 65 receives the signal of the counterclockwise rotation of the rotating shaft 2, and then the electric telescopic rod 65 extends, driving the first fixing plate 64 to move closer to the second plate body 62, clamping the suture needle 7 to drive the suture needle 7 to rotate counterclockwise, and then the needle tail of the suture needle 7 also passes through the patient's tissue 12, so that the needle and thread can be brought into the patient's tissue 12; subsequently, the notch 9 of the shell 1 is placed at different positions of the patient's tissue 12, and the above operation is repeated to complete the suturing of the purse string, and finally, the needle and thread can be shortened by medical staff.

[0049] like Fig.11 As shown, in this embodiment, the first pressure sensor 611 and the second pressure sensor 612 are respectively provided at both ends of the first plate body 61, and the first pressure sensor 611 and the second pressure sensor 612 are respectively electrically connected to the motor 3. A baffle 10 is provided in the housing 1, and the baffle 10 faces the first pressure sensor 611. It should be noted that when the first pressure sensor 611 contacts the second clamping member 8, it means that the first clamping member 6 has moved the needle tail of the suture needle 7 to the position of the second clamping member 8. At this time, the motor 3 rotates clockwise, driving the first clamping member 6 to rotate clockwise to the other end of the notch 9. When the second pressure sensor 612 contacts the baffle 10, it means that the second clamping member 8 has moved to the needle head of the suture needle 7. At this time, the motor 3 rotates clockwise, driving the suture needle 7 to penetrate the needle thread into the patient's tissue 12, thereby realizing the automation of the process.

[0050] like Fig.10 As shown, in this embodiment, the second clamping member 8 includes a third plate body 81 and a fourth plate body 82 which are arranged at intervals, and the third plate body 81 and the fourth plate body 82 are connected by a second connecting plate, and a second fixing plate 83 and a third fixing plate 86 are arranged between the third plate body 81 and the fourth plate body 82, and the second fixing plate 83 and the third fixing plate 86 are respectively connected to the second connecting plate in a sliding manner, and a clamping space for clamping the suture needle 7 is formed between the second fixing plate 83 and the third fixing plate 86, and the second fixing plate 83 and the third plate body 81, and the third fixing plate 86 and the fourth plate body 82 are respectively connected by a first spring 85. It should be noted that the second clamping member 8 in the present invention mainly plays the role of the second clamping member 8 continuing to fix the suture needle 7 after the first clamping member 6 releases the suture needle 7, so as to prevent the suture needle 7 from being offset. Therefore, in this solution, the second fixing plate 83 and the third fixing plate 86 can clamp and fix the suture needle 7 through the elastic force of the first spring 85.

[0051] like Fig.10As shown, in this embodiment, the second fixing plate 83 and the third fixing plate 86 are respectively provided with a first guide surface 84 at one end away from the notch 9, and the guide surface is inclined, and the two first guide surfaces 84 form an eight-shaped structure. It should be noted that the distance between the second fixing plate 83 and the third fixing plate 86 is smaller than the diameter of the suture needle 7. By setting the first guide surface 84, before the suture needle 7 is inserted into the second fixing plate 83 and the third fixing plate 86, the second fixing plate 83 and the third fixing plate 86 will be pushed outward by the first guide surface 84, so that the first spring 85 is compressed, and then the suture needle 7 can be clamped by the second fixing plate 83 and the third fixing plate 86 after the suture needle 7 is inserted into the second fixing plate 83 and the third fixing plate 86.

[0052] like Fig.10 As shown, in this embodiment, a mounting seat 11 is further provided at one end inside the shell 1, and a first mounting groove 111 is provided at one end of the mounting seat 11 facing the side wall of the shell 1, and a third pressure sensor 113 is provided at the bottom of the first mounting groove 111, and the third pressure sensor 113 is electrically connected to the motor 3. A first pressing block 114 is also slidably embedded in the first mounting groove 111, and the first pressing block 114 is connected to the first mounting groove 111 through a second spring 112. An end of the first pressing block 114 away from the third pressure sensor 113 extends outside the first mounting groove 111, and an end of the first pressing block 114 away from the third pressure sensor 113 is provided with a second guide surface 115, and the second guide surface 115 is inclined, and an end of the first pressing block 114 away from the second guide surface 115 is provided with a second right-angle surface 116, The second right-angled surface 116 is perpendicular to the mounting seat 11; a second mounting groove 66 is provided at one end of the first plate body 61 facing the center of the shell 1, a second pressure block 68 is slidably embedded in the second mounting groove 66, the second pressure block 68 is connected to the second mounting groove 66 through a third spring 67, one end of the second pressure block 68 extends outside the second mounting groove 66, and one end of the second pressure block 68 is provided with a third guide surface 69, the third guide surface 69 is inclined, and the end of the second pressure block 68 away from the third guide surface 69 is provided with a third right-angled surface 70, the third right-angled surface 70 is perpendicular to the mounting seat 11; when the first plate body 61 rotates counterclockwise, the third guide surface 69 will contact the second right-angled surface 116, and when the first plate body 61 rotates clockwise, the third right-angled surface 70 will contact the second guide surface 115. It should be noted that in the initial state (such as Figure 2As shown in the figure, the first clamping member 6 and the second clamping member 8 are respectively clamped at the two ends of the suture needle 7, and the needle head of the suture needle 7 is located at the position of the housing 1 close to the notch 9. Then, the motor 3 is started, and the motor 3 drives the rotating shaft 2 to rotate counterclockwise. At this time, the electric telescopic rod 65 receives the signal of the counterclockwise rotation of the rotating shaft 2, and then the electric telescopic rod 65 extends, driving the first fixed plate 64 to move closer to the second plate body 62 to clamp the suture needle 7. Then, the rotating shaft 2 rotates counterclockwise and then drives the connecting rod 4 to rotate counterclockwise. The connecting rod 4 drives the first clamping member 6 to rotate counterclockwise, and then drives the suture needle 7 to rotate counterclockwise. During the process of the first clamping member 6 rotating to contact with the second clamping member 8, the needle head of the suture needle 7 penetrates from one end of the patient's tissue 12 and penetrates from the other end of the patient's tissue 12. At this time, the state is as shown in the figure. Figure 3 As shown, the second clamping member 8 is clamped at the needle tail of the suture needle 7, and the needle head of the suture needle 7 is inserted into the housing 1 from the other end of the notch 9. Then, the motor 3 is started again, and the motor 3 drives the connecting rod 4 to rotate clockwise. At this time, the electric telescopic rod 65 receives the signal of the clockwise rotation of the rotating shaft 2, and then the electric telescopic rod 65 contracts to release the suture needle 7. After that, the connecting rod 4 rotates the first clamping member 6 to the needle head of the suture needle 7 (as shown in FIG. Figure 4 As shown), the motor 3 is turned off, and then the motor 3 is started again, so that the motor 3 drives the connecting rod 4 and the first clamping member 6 to rotate counterclockwise. At this time, the electric telescopic rod 65 receives the signal of the counterclockwise rotation of the rotating shaft 2, and then the electric telescopic rod 65 extends, driving the first fixing plate 64 to move closer to the second plate body 62, clamping the suture needle 7, so as to drive the suture needle 7 to rotate counterclockwise, and then the needle tail of the suture needle 7 also passes through the patient's tissue 12 (as shown in FIG. Figure 5 As shown), the needle and thread can be brought into the patient's tissue 12 to complete the first threading operation (the state at this time is as shown in FIG. Figure 5 As shown), subsequently, the notch 9 of the housing 1 is placed at another position of the patient tissue 12, and the motor 3 is started, and the motor 3 continues to drive the first clamping member 6 and the suture needle 7 to rotate counterclockwise to rotate the needle head of the suture needle 7 to the position of the second clamping member 8 (the state at this time is as shown in FIG. Figure 7As shown in the figure, during the counterclockwise rotation of the first clamping member 6, the first pressing block 114 will contact the second pressing block 68. Since the second guide surface 115 of the first pressing block 114 faces the third right-angle surface 70 of the second pressing block 68 in the counterclockwise direction, when the second guiding surface 115 contacts the second right-angle surface 116, the second right-angle surface 116 will squeeze the second guiding surface 115. After the second guiding surface 115 is subjected to the pressure of the second right-angle surface 116, the pressure will be decomposed into a direction perpendicular to the first mounting groove 111, so that the first pressing block 114 will shrink into the first mounting groove 111, and at this time, the second pressing block 68 will not shrink into the second mounting groove 66, that is, the second pressing block 68 will not contact the third pressure sensor 113; subsequently, when the upper first pressure sensor 611 of the first clamping member 6 contacts the first clamping member 6, the motor 3 drives the first clamping member 6 to rotate clockwise (as shown in the figure). Figure 8 ), when the second right-angle surface 116 on the first pressure block 114 squeezes the third guide surface 69 on the second pressure block 68 (the principle is the same as above), the second pressure block 68 is pressed into the second mounting groove 66 and triggers the third pressure sensor 113. The third sensor sends a signal to the motor 3, and the motor 3 drives the first clamping member 6 to rotate counterclockwise (the subsequent threading process is the same as the first threading process, and when the first clamping member 6 rotates counterclockwise again to return to the other end of the notch 9, although the second pressure block 68 will also be compressed at this time, the system can be set so that the motor 3 will not be triggered by the third pressure sensor 113 at this time).

[0053] In this embodiment, a wire hole is formed through one side of the housing 1 .

[0054] In this embodiment, a handle 5 is provided at one end of the housing 1 away from the notch 9 .

[0055] The working principle of the present invention is:

[0056] In the initial state (such as Figure 2 As shown in the figure, the first clamping member 6 and the second clamping member 8 are respectively clamped at the two ends of the suture needle 7, and the needle head of the suture needle 7 is located at the position of the housing 1 close to the notch 9. Then, the motor 3 is started, and the motor 3 drives the rotating shaft 2 to rotate counterclockwise. At this time, the electric telescopic rod 65 receives the signal of the counterclockwise rotation of the rotating shaft 2, and then the electric telescopic rod 65 extends, driving the first fixed plate 64 to move closer to the second plate body 62 to clamp the suture needle 7. Then, the rotating shaft 2 rotates counterclockwise and then drives the connecting rod 4 to rotate counterclockwise. The connecting rod 4 drives the first clamping member 6 to rotate counterclockwise, and then drives the suture needle 7 to rotate counterclockwise. During the process of the first clamping member 6 rotating to contact with the second clamping member 8, the needle head of the suture needle 7 penetrates from one end of the patient's tissue 12 and penetrates from the other end of the patient's tissue 12. At this time, the state is as shown in the figure. Figure 3As shown, the second clamping member 8 is clamped at the needle tail of the suture needle 7, and the needle head of the suture needle 7 is inserted into the housing 1 from the other end of the notch 9. Then, the motor 3 is started again, and the motor 3 drives the connecting rod 4 to rotate clockwise. At this time, the electric telescopic rod 65 receives the signal of the clockwise rotation of the rotating shaft 2, and then the electric telescopic rod 65 contracts to release the suture needle 7. After that, the connecting rod 4 rotates the first clamping member 6 to the needle head of the suture needle 7 (as shown in FIG. Figure 4 As shown), the motor 3 is turned off, and then the motor 3 is started again, so that the motor 3 drives the connecting rod 4 and the first clamping member 6 to rotate counterclockwise. At this time, the electric telescopic rod 65 receives the signal of the counterclockwise rotation of the rotating shaft 2, and then the electric telescopic rod 65 extends, driving the first fixing plate 64 to move closer to the second plate body 62, clamping the suture needle 7, so as to drive the suture needle 7 to rotate counterclockwise, and then the needle tail of the suture needle 7 also passes through the patient's tissue 12 (as shown in FIG. Figure 5 As shown), the needle and thread can be brought into the patient's tissue 12 to complete the first threading operation (the state at this time is as shown in FIG. Figure 5 As shown), subsequently, the notch 9 of the housing 1 is placed at another position of the patient tissue 12, and the motor 3 is started, and the motor 3 continues to drive the first clamping member 6 and the suture needle 7 to rotate counterclockwise to rotate the needle head of the suture needle 7 to the position of the second clamping member 8 (the state at this time is as shown in FIG. Figure 7 As shown in the figure, during the counterclockwise rotation of the first clamping member 6, the first pressing block 114 will contact the second pressing block 68. Since the second guide surface 115 of the first pressing block 114 faces the third right-angle surface 70 of the second pressing block 68 in the counterclockwise direction, when the second guiding surface 115 contacts the second right-angle surface 116, the second right-angle surface 116 will squeeze the second guiding surface 115. After the second guiding surface 115 is subjected to the pressure of the second right-angle surface 116, the pressure will be decomposed into a direction perpendicular to the first mounting groove 111, so that the first pressing block 114 will shrink into the first mounting groove 111, and at this time, the second pressing block 68 will not shrink into the second mounting groove 66, that is, the second pressing block 68 will not contact the third pressure sensor 113; subsequently, when the upper first pressure sensor 611 of the first clamping member 6 contacts the first clamping member 6, the motor 3 drives the first clamping member 6 to rotate clockwise (as shown in the figure). Figure 8 ), when the second right-angle surface 116 on the first pressure block 114 squeezes the third guide surface 69 on the second pressure block 68 (the principle is the same as above), the second pressure block 68 is pressed into the second mounting groove 66 and triggers the third pressure sensor 113. The third pressure sensor 113 sends a signal to the motor 3, and the motor 3 drives the first clamping member 6 to rotate counterclockwise (the subsequent threading process is the same as the first threading process, and when the first clamping member 6 rotates counterclockwise again to return to the other end of the notch 9, although the second pressure block 68 will also be compressed at this time, the system can be set so that the motor 3 will not be triggered by the third pressure sensor 113 at this time).

[0057] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0058] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aortic purse-string automatic suture device, characterized in that: The invention comprises a shell (1), wherein the shell (1) is circular in shape, and a notch (9) is penetrated at one end of the shell (1), and the notch (9) is an arc-shaped structure recessed upwards. A suturing needle (7) is arranged in the shell (1), and the suturing needle (7) is arranged along the circumference of the shell (1). A rotating shaft (2) rotatably connected to the shell (1) is arranged at the center of the shell (1), and the rotating shaft (2) is driven by a motor (3). A connecting rod (4) is arranged on the side wall of the rotating shaft (2), and the connecting rod (4) is arranged along the radial direction of the rotating shaft (2). A first clamping member (6) for clamping the suturing needle (7) is provided at one end of the connecting rod (4) away from the rotating shaft (2), and a second clamping member (8) for clamping the suturing needle (7) is provided at a position near the notch (9) in the shell (1).

2. The aortic purse-string automatic suture device according to claim 1, characterized in that: The first clamping member (6) comprises a first plate body (61) and a second plate body (62) which are spaced apart from each other. The first plate body (61) is connected to the connecting rod (4). The first plate body (61) and the second plate body (62) are connected via a first connecting plate (63). A first fixing plate (64) is provided between the first plate body (61) and the second plate body (62). The first fixing plate (64) is slidably connected to the first connecting plate (63). A clamping space for clamping a suture needle (7) is formed between the first fixing plate (64) and the second plate body (62). The first clamping member (6) further comprises a driving device for driving the first fixing plate (64) to move.

3. The aortic purse-string automatic suture device according to claim 1, characterized in that: The driving device comprises an electric telescopic rod (65) arranged on the first plate body (61); one end of the electric telescopic rod (65) is connected to the first plate body (61), and the other end is connected to the first fixed plate (64).

4. The aortic purse-string automatic suture device according to claim 3, characterized in that: The electric telescopic rod (65) is electrically connected to the motor (3). When the motor (3) drives the rotating shaft (2) to rotate counterclockwise, the electric telescopic rod (65) extends to drive the first fixed plate (64) to move in a direction close to the second plate body (62) to clamp the suture needle (7). When the motor (3) drives the rotating shaft (2) to rotate clockwise, the electric telescopic rod (65) contracts to drive the first fixed plate (64) to move in a direction away from the second plate body (62) to release the suture needle (7).

5. The aortic purse-string automatic suture device according to claim 4, characterized in that: A first pressure sensor (611) and a second pressure sensor (612) are respectively provided at two ends of the first plate body (61); the first pressure sensor (611) and the second pressure sensor (612) are respectively electrically connected to the motor (3); a baffle (10) is provided inside the housing (1); the baffle (10) faces the first pressure sensor (611).

6. The aortic purse-string automatic suture device according to claim 1, characterized in that: The second clamping member (8) comprises a third plate body (81) and a fourth plate body (82) which are arranged at an interval, the third plate body (81) and the fourth plate body (82) are connected by a second connecting plate, a second fixing plate (83) and a third fixing plate (86) are arranged between the third plate body (81) and the fourth plate body (82), the second fixing plate (83) and the third fixing plate (86) are respectively slidably connected to the second connecting plate, a clamping space for clamping the suture needle (7) is formed between the second fixing plate (83) and the third fixing plate (86), and the second fixing plate (83) and the third plate body (81), as well as the third fixing plate (86) and the fourth plate body (82) are respectively connected by a first spring (85).

7. The aortic purse-string automatic suture device according to claim 6, characterized in that: The second fixing plate (83) and the third fixing plate (86) are each provided with a first guide surface (84) at one end away from the notch (9); the guide surfaces are arranged at an angle, and the two first guide surfaces (84) form an eight-shaped structure.

8. The aortic purse-string automatic suture device according to claim 7, characterized in that: A mounting seat (11) is further provided at one end inside the shell (1), a first mounting groove (111) is provided at one end of the mounting seat (11) facing the side wall of the shell (1), a third pressure sensor (113) is provided at the bottom of the first mounting groove (111), the third pressure sensor (113) is electrically connected to the motor (3), a first pressure block (114) is also slidably embedded in the first mounting groove (111), the first pressure block (114) is connected to the first mounting groove (111) via a second spring (112). 11), one end of the first pressing block (114) away from the third pressure sensor (113) extends outside the first mounting groove (111), and one end of the first pressing block (114) away from the third pressure sensor (113) is provided with a second guide surface (115), the second guide surface (115) is inclined, and one end of the first pressing block (114) away from the second guide surface (115) is provided with a second right-angle surface (116), and the second right-angle surface (116) is perpendicular to the mounting seat (11); A second mounting groove (66) is provided at one end of the first plate body (61) facing the center of the shell (1), a second pressing block (68) is slidably embedded in the second mounting groove (66), the second pressing block (68) is connected to the second mounting groove (66) through a third spring (67), one end of the second pressing block (68) extends outside the second mounting groove (66), and one end of the second pressing block (68) is provided with a third guide surface (69), the third guide surface (69) is inclined, and a third right-angle surface (70) is provided at one end of the second pressing block (68) away from the third guide surface (69), and the third right-angle surface (70) is perpendicular to the mounting seat (11); When the first plate (61) rotates counterclockwise, the third guide surface (69) contacts the second right-angle surface (116); when the first plate (61) rotates clockwise, the third right-angle surface (70) contacts the second guide surface (115).

9. The aortic purse-string automatic suture device according to claim 1, characterized in that: A wire hole is provided through one side of the shell (1).

10. The aortic purse-string automatic suture device according to claim 1, characterized in that: A handle (5) is provided at one end of the housing (1) away from the notch (9).

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