A spleen removal device capable of automatically decomposing tissue during minimally invasive splenectomy

Abstract

The present invention provides a spleen removal device that can automatically decompose tissue during minimally invasive splenectomy, comprising an inner cylinder, the outer cylinder being rotatably connected to the inner cylinder, a support plate being installed at the end of the outer cylinder, a mounting rod being installed inside the inner cylinder, a connecting platform being slidably connected to the surface of the mounting rod, a resection head being provided inside the inner cylinder, a connecting platform being rotatably connected to the end of the connecting platform, and a connecting block being rotatably connected to the end of the connecting rod. The resection head, connecting rod, first pull rod, limit plate, and offset adjustment mechanism are provided so that the resection head can adjust its own angle. When resecting a smaller necrotic area on the surface of the spleen, the resection head is tilted at different angles according to the size of the necrotic area. At this time, the contact area between the resection head and the spleen will change according to the tilt angle. By adjusting the tilt angle of the resection head, the doctor can more accurately control the resection range, ensuring that only necrotic spleen tissue is removed while preserving as much healthy spleen as possible.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a spleen removal device capable of automatically decomposing tissues during minimally invasive splenectomy. Background Art

[0002] Minimally invasive splenectomy refers to laparoscopic splenectomy, which is a minimally invasive surgery performed using laparoscopic technology to treat spleen diseases. It uses a laparoscope and related surgical instruments to make tiny incisions in the abdomen, observe the situation in the abdominal cavity through the laparoscope lens, and use surgical instruments to remove the spleen.

[0003] During minimally invasive splenectomy, due to the large size of the spleen, the removed spleen is difficult to remove through the minimally invasive incision, and the existing spleen removal device is not convenient for decomposing the removed spleen in the abdominal cavity, which not only makes spleen removal difficult, but also greatly prolongs the operation time. If the removed spleen accidentally falls into the abdominal cavity, spleen implantation may occur. In addition, the resection head of the existing spleen removal device has a large contact area with the spleen. When resecting a smaller necrotic area of ​​the spleen, the resection head is not convenient for adjusting its own angle. During the resection, the healthy spleen tissue around the necrotic area may be accidentally removed, which not only increases the risk of the operation, but the loss of healthy tissue may also cause the patient's recovery time to prolong. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a clinical surgical wound retraction device to solve the above-mentioned background technology that the existing spleen removal device is inconvenient to decompose the removed spleen in the abdominal cavity, and the resection head is not convenient to adjust its own angle. The technical solution of the present invention addresses the technical problem that the existing technical solution is too single and provides a solution that is significantly different from the existing technology.

[0005] In order to solve the above problems, the present invention provides the following technical solutions:

[0006] A spleen removal device for automatically decomposing tissue during minimally invasive splenectomy, comprising an inner cylinder, the outer cylinder being rotatably connected to the outer cylinder on the outside, a support plate being installed at the end of the outer cylinder, a mounting rod being installed inside the inner cylinder, a connecting platform being slidably connected to the surface of the mounting rod, a cutting head being provided inside the inner cylinder, a connecting platform end being rotatably connected to a connecting rod, a connecting rod end being rotatably connected to a connecting block, a first pull rod being installed at the back end of the connecting block, a limiting plate being installed inside the inner cylinder, the first pull rod being slidably connected to the limiting plate, a crushing head being provided inside the inner cylinder, a protrusion being installed at the end of the cutting head, and a connecting plate being slidably connected to the surface of the first pull rod; an offset adjustment mechanism, the offset adjustment mechanism The structure is arranged at the back end of the resection head and the side end of the mounting rod, and the offset adjustment mechanism is used to adjust the angle of the resection head, and the internal spacing of the resection head can be adjusted while adjusting the angle; the crushing follower component, the crushing follower component is arranged on the surface of the mounting rod and inside the resection head, and the crushing follower component is used to make the crushing head deviate with the resection head when the angle of the resection head is offset, so that the internal part can also be crushed and decomposed when the resection head is deflected; the resection locking mechanism; the resection locking mechanism is arranged inside the other end of the inner cylinder, and the resection locking mechanism can lock the first pull rod, so that medical staff do not need to continuously pull the first pull rod, reducing the fatigue of the medical staff's hands.

[0007] Optionally, the number of the connecting platforms is two groups, and they are symmetrically distributed on the surface of the mounting rod; the cutting head is in the shape of a frustum, and a cavity is provided inside the cutting head.

[0008] Optionally, a spring is sleeved on the surface of the first pull rod; one end of the spring is connected to the limiting plate, and the other end is connected to the back end of the connecting block.

[0009] Optionally, the surface of the crushing head is provided with arc stripes, four groups of the arc stripes are distributed in a circular shape on the surface of the crushing head, and the protrusion at the end of the crushing head is in the shape of a quadrangular pyramid.

[0010] Optionally, the offset adjustment mechanism includes a second pull rod slidably connected to the inside of the limit plate, and also includes a slide sliding in the slide groove of the side wall of the back end of the cutting head, the end of the second pull rod is equipped with a slide rod, both ends of the slide rod are slidably connected to the slide, the other end of the second pull rod is connected to the connecting plate, the connecting plate is slidably connected to the surface of the first pull rod, the back end of the cutting head rotates inside the mounting platform, the mounting platform is slidably connected to the connecting platform, a long plate is installed on the surface of the second pull rod, a first oil tank is installed on the surface of the long plate, a first piston rod is slidably connected inside the first oil tank, the end of the first piston rod is connected to the limit plate, a second oil tank is installed inside the connecting platform, a second piston rod is slidably connected inside the second oil tank, the second piston rod is connected to the mounting platform, and a hose is connected between the second oil tank and the first oil tank.

[0011] The present invention uses an offset adjustment mechanism to enable the resection head to adjust its own angle. When resecting a smaller necrotic area on the surface of the spleen, the resection head is tilted at different angles according to the size of the necrotic area. At this time, the contact area between the resection head and the spleen will change according to the tilt angle. By adjusting the tilt angle of the resection head, the doctor can control the resection range more accurately.

[0012] Optionally, springs are installed at both ends of the slide, and both ends of the springs are connected to the inner wall of the slide groove on the back side wall of the cutting head, and a torsion spring is installed between the inside of the cutting head and the mounting platform.

[0013] Optionally, the crushing follower assembly includes a first elastic telescopic rod installed at the bottom of the back end of the cutting head, and also includes a turntable mounted on the surface of the mounting rod, a ring is installed at the bottom of the first elastic telescopic rod, a second elastic telescopic rod is installed at the end of the turntable, a motor is installed at the end of the second elastic telescopic rod, an electric push rod is installed at the output end of the motor, the protruding end of the electric push rod is connected to the crushing head, and the ring is rotatably connected to the electric push rod.

[0014] Optionally, the first elastic telescopic rods are in two groups, and the two groups of first elastic telescopic rods are symmetrically distributed on the surface of the ring.

[0015] Optionally, the cutting locking mechanism includes a locking platform installed inside the inner cylinder, a boss is installed on the surface of the first pull rod, an elastic block is installed inside the boss, a pressure block slides in the internal cavity of the locking platform, and the end of the pressure block is connected to the third pull rod.

[0016] Optionally, one end of the locking platform is provided with a chamfer, the end of the pressing block is designed to be inclined, and the other end of the pressing block is provided with a tension spring.

[0017] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0018] In the above scheme, the resection head can adjust its own angle through the provision of the resection head, connecting rod, first pull rod, limit plate and offset adjustment mechanism. When resecting a smaller necrotic area on the surface of the spleen, the resection head is tilted at different angles according to the size of the necrotic area. At this time, the contact area between the resection head and the spleen will change according to the tilt angle. By adjusting the tilt angle of the resection head, the doctor can more accurately control the resection range to ensure that only the necrotic spleen tissue is removed, while retaining the healthy spleen part as much as possible. Moreover, when the resection head is tilted, the internal spacing of the resection head can be reduced synchronously to ensure that the resection head fits the necrotic area of ​​the spleen more closely, thereby more effectively resecting the diseased tissue.

[0019] Through the installation rod, crushing head, resection head and crushing follower assembly, when the resection head deviates to different angles, the crushing head can crush and decompose the internal tissue of the resection head. The crushing head can also change with the change of the resection head angle, ensuring that no matter what angle the resection head is at, it can effectively treat the internal tissue of the spleen, greatly shortening the operation time and improving the operation efficiency.

[0020] Through the provided inner cylinder, outer cylinder, support plate and resection locking mechanism, the resection head can be closed and locked when the necrotic tissue is removed into the inner cavity of the resection head. The staff does not need to continuously pull the first pull rod. The tissue inside the inner cavity of the resection head is crushed and decomposed by the crushing head, which can prevent the resection head from accidentally opening or moving during the crushing and decomposition process, thereby ensuring that the removed necrotic tissue will not fall into the patient's abdominal cavity, which not only avoids the occurrence of spleen implantation, but also greatly reduces the operational burden during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the first pull rod structure of the present invention;

[0026] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 6 This is a schematic diagram of the structure of the crushing follower component of the present invention;

[0028] Figure 7 Schematic diagram of the structure of the offset adjustment mechanism of the present invention;

[0029] Figure 8 This is a schematic structural diagram of the excision locking mechanism of the present invention;

[0030] Figure 9 It is a schematic cross-sectional structure diagram of the excision locking mechanism of the present invention.

[0031] [Reference Signs]

[0032] 1. Inner tube; 2. Outer tube; 3. Support plate; 4. Mounting rod; 5. Connecting platform; 6. Removal head; 61. Boss; 7. Connecting rod; 8. First pull rod; 9. Limiting plate; 10. Crushing head; 11. Offset adjustment mechanism; 111. Second pull rod; 112. Slide rod; 113. Slide platform; 114. Mounting platform; 115. First oil tank; 116. First piston rod; 117. Second oil tank; 118. Second piston rod; 12. Connecting plate; 13. Crushing follower assembly; 131. First elastic telescopic rod; 132. Collar; 133. Turntable; 134. Second elastic telescopic rod; 135. Electric push rod; 14. Removal locking mechanism; 141. Locking platform; 142. Boss; 143. Elastic block; 144. Pressing block; 145. Third pull rod.

[0033] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0034] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative methods for implementing certain known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0035] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0036] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0037] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0038] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0039] like Figures 1 to 9As shown, an embodiment of the present invention provides a spleen removal device that can automatically decompose tissue during minimally invasive splenectomy, including an inner cylinder 1. The inner cylinder 1 is composed of two hollow cylinders. The inner diameter and outer diameter of the left hollow cylinder are both smaller than those of the right hollow cylinder, and a chamfer is provided at the connection between the two hollow cylinders. The outer surface of the left end of the inner cylinder 1 is rotatably connected to the outer cylinder 2. The outer cylinder 2 is hollow cylindrical, and the inner diameter of the outer cylinder 2 is equal to the outer diameter of the left end of the inner cylinder 1. A support plate 3 is installed on the left end of the outer cylinder 2. A mounting rod 4 is vertically installed on the inner wall of the right end of the inner cylinder 1. The two ends of the mounting rod 4 are slidably connected to a connecting platform 5. The connecting platform 5 is in the shape of a long block, and a rectangular notch is provided at its right end. The right end of the connecting platform 5 is provided with a rounded corner. The back end of the connecting platform 5 rotates with the connecting rod 7. The inner cylinder 1 is connected with a cutting head 6 at the right end, and the protrusion 61 at the back end of the cutting head 6 rotates inside the mounting platform 114. The long strip on the inner wall surface of the mounting platform 114 is slidably connected with the sliding groove on the surface of the connecting platform 5. There are two connecting rods 7 rotatably connected in the rectangular notch on the right end of the connecting platform 5. The other ends of the two connecting rods 7 are rotatably connected with the connecting block. The back end of the connecting block is fixedly connected with a first pull rod 8. The inner wall of the right end of the inner cylinder 1 is fixedly connected with a limiting plate 9. The first pull rod 8 slides in the circular hole in the middle of the limiting plate 9. The first pull rod 8 is slidably connected to the limiting plate 9. A crushing head 10 is provided at the central part of the right end of the inner cylinder 1. The turntable 133 on the central surface of the mounting rod 4 is fixedly connected to the end of the turntable 133 with a second elastic telescopic rod 134. The ends of the two elastic telescopic rods 134 are fixedly connected to the motor, and the output end of the motor is installed with an electric push rod 135. The protruding end of the electric push rod 135 is connected to the crushing head 10, and the end of the cutting head 6 is installed with a protrusion 61. The right end of the first pull rod 8 is slidably connected to the connecting plate 12 near the left end surface of the inner tube 1; the offset adjustment mechanism 11 is arranged at the back end of the cutting head 6 and the side end of the mounting rod 4. The offset adjustment mechanism 11 includes a second pull rod 111 slidably connected to the inside of the limit plate 9, and a sliding rod 112 is installed at the end of the second pull rod 111. The sliding rod 112 is sleeved on the surface of the slide 113 and is slidably connected to the slide 113. The other end of the second pull rod 111 is connected to the connecting plate 12, and the connecting plate 12 slides with the surface of the first pull rod 8 The protrusion at the back end of the cutting head 6 rotates inside the mounting platform 114, and the offset adjustment mechanism 11 is used to adjust the angle of the cutting head 6, and the internal spacing of the cutting head 6 can be adjusted while adjusting the angle; the crushing follower component 13 is arranged on the surface of the mounting rod 4 and inside the cutting head 6. When the angle of the cutting head 6 deviates, the crushing follower component 13 enables the crushing head 10 to deviate with the cutting head 6, so that the interior can also be crushed and decomposed when the cutting head 6 deflects; the cutting locking mechanism 14 is arranged inside the other end of the inner tube 1, and the cutting locking mechanism 14 can lock the first pull rod 8, so that medical staff do not need to continuously pull the first pull rod 8, reducing the fatigue of the medical staff's hands.

[0040] When performing a minimally invasive resection operation, the inner tube 1 and the outer tube 2 are first introduced into the patient's abdominal cavity through the minimally invasive incision, and then the spleen of the patient's diseased area is removed. At this time, the first pull rod 8 is pulled to make the connecting platform 5 slide toward the center on the surface of the mounting rod 4, so that the resection head 6 is closed. At this time, the boss 142 on the surface of the first pull rod 8 will slide in the surface groove of the locking platform 141. When the elastic block 143 coincides with the locking hole, the resection head 6 will be closed. Then the motor and the electric push rod 135 drive the crushing head 10 to rotate and extend, thereby crushing and decomposing the internal tissue of the crushing head 10. After the crushing is completed, the resection head 6 is extended into the collection bag in the abdominal cavity. At this time, the third pull rod 145 is pulled, and the pressing block 144 will squeeze the elastic block 143. The spring on the surface of the first pull rod 8 will drive the connecting platform 5 to open and drive the resection head 6 to open, so that the crushed and decomposed tissue in the internal cavity of the resection head 6 falls into the collection bag.

[0041] like Figures 2 to 5 As shown, there are two groups of connecting platforms 5, which are symmetrically distributed on the surfaces of both ends of the mounting rod 4; the resection head 6 is in the shape of a cone, and a cavity is opened inside the resection head 6. When the handle at the end of the first pull rod 8 is pulled, the two groups of connecting platforms 5 will move toward the middle of the mounting rod 4, causing the two groups of resection heads 6 to close toward the middle of the mounting rod 4. The clamping force of the two groups of resection heads 6 when closed can remove the spleen. The opening of the cavity inside the resection head 6 allows the spleen to be crushed inside the cavity after resection. The cavity inside the resection head 6 provides a space for immediate crushing of the spleen after resection, eliminating the need to transfer the resected tissue to other locations for processing. This significantly shortens the operation time and improves the overall efficiency of the operation.

[0042] like Figures 2 to 5 As shown, the first pull rod 8 is provided with a spring near the surface of the connecting block; one end of the spring is connected to the limit plate 9, and the other end is connected to the back end of the connecting block. When the first pull rod 8 is pulled, the first pull rod 8 will drive the two connecting rods 7 to slide toward the middle of the mounting rod through the connecting block. At this time, the two groups of cutting heads 6 are closed when they are closed toward the middle of the mounting rod 4. When the first pull rod 8 is released, the cutting head 6 will automatically open due to the rebound of the spring.

[0043] like Figure 6 As shown, the surface of the crushing head 10 is provided with arc stripes, and four groups of arc stripes are distributed in a circular shape on the surface of the crushing head 10. The protrusion at the end of the crushing head 10 is in the shape of a quadrangular pyramid. The end of the quadrangular pyramid protrusion is relatively sharp, which can easily crush the tissue in the cavity of the resection head 6. The design of the four groups of arc stripes on the crushing head 10 can make the surface of the crushing head 10 form a spiral shape when the crushing head 10 rotates, thereby decomposing the spleen tissue into smaller states.

[0044] like Figure 5 、 Figure 7As shown, the offset adjustment mechanism 11 includes a second pull rod 111 slidably connected to the right side area inside the limit plate 9, and also includes a slide 113 sliding in the side wall groove of the protrusion 61. One end of the slide 113 is limitedly installed in the side wall groove of the protrusion 61. A slide rod 112 is installed at the end of the second pull rod 111. Both ends of the slide rod 112 are slidably connected to the slide 113. A circular hole with the same outer diameter as the slide rod 112 is opened in the slide 113. The other end of the second pull rod 111 is connected to the connecting plate 12. At this time, The connecting plate 12 is located outside the left end of the inner tube 1. The connecting plate 12 is sleeved on the surface of the first pull rod 8 and is slidably connected to the surface of the connecting plate 12 and the first pull rod 8. The protrusion at the back end of the cutting head 6 rotates inside the mounting platform 114. The connecting platform 5 is provided with a slide groove that matches the long strip. The long strip can slide in the connecting platform 5. The long strip on the inner wall surface of the mounting platform 114 is slidably connected to the slide groove on the surface of the connecting platform 5. A long plate is installed on the surface of the second pull rod 111. The first oil tank 115 is installed on the surface of the long plate. The first oil tank 115 A first piston rod 116 is slidably connected inside, and the end of the first piston rod 116 is connected to the limit plate 9. A second oil tank 117 is installed inside the connecting platform 5. A second piston rod 118 is slidably connected inside the second oil tank 117, and the end of the second piston rod 118 is fixedly connected to the mounting platform 114. A hose is connected between the second oil tank 117 and the first oil tank 115. Pulling the connecting plate 12 will drive the second pull rod 111 to move backward, and the second pull rod 111 will drive the slide 113 to slide in the side groove of the back end of the resection head 6, and will cause the resection head 6 to rotate in the mounting platform 114, thereby adjusting its own angle. During resection, the end of the resection head 6 can be made to contact the necrotic area of ​​the spleen. When resecting a smaller necrotic area on the surface of the spleen, the resection head 6 can be tilted at different angles according to the size of the necrotic area. At this time, the contact area between the resection head 6 and the spleen will change according to the tilt angle. By adjusting the tilt angle of the resection head 6, the doctor can more accurately control the resection range.

[0045] like Figure 7 As shown, springs are installed at both ends of the slide 113, and both ends of the spring are connected to the inner wall of the slide groove on the back side wall of the cutting head 6. A torsion spring is installed between the inside of the cutting head 6 and the mounting platform 114. When the second pull rod 111 adjusts the angle of the cutting head 6, the opening of the slide groove on the back side wall of the cutting head 6 can prevent the second pull rod 111 from getting stuck when being pulled. When the second pull rod 111 is released, the establishment of the torsion spring and the spring can drive the second pull rod 111 to reset.

[0046] like Figure 6As shown, the crushing follower assembly 13 includes a first elastic telescopic rod 131 installed at the bottom of the back end of the resection head 6, and also includes a turntable 133 sleeved on the central surface of the mounting rod 4, a collar 132 is installed at the bottom of the first elastic telescopic rod 131, a second elastic telescopic rod 134 is installed at the end of the turntable 133, a motor is installed at the end of the second elastic telescopic rod 134, an electric push rod 135 is installed at the output end of the motor, the protruding end of the electric push rod 135 is connected to the crushing head 10, the collar 132 is rotatably connected to the electric push rod 135, when removing a smaller necrotic area on the surface of the spleen, pulling the connecting plate 12 will drive the second pull rod 111 to move backward, and the second pull rod 111 will drive the slide 113 to slide in the side slide groove of the back end of the resection head 6, and will cause the resection head 6 to move on the mounting platform 114, thereby adjusting its own angle, so that the end of the resection head 6 can be brought into contact with the necrotic area of ​​the spleen during resection, and the second pull rod 111 will squeeze the second piston rod 118 when moving, so that the oil inside the second oil tank 117 enters the first oil tank 115 through the hose. At this time, the oil inside the first oil tank 115 will push the first piston rod 116 to extend, thereby reducing the internal spacing of the resection head 6 and reducing the contact area between the resection head 6 and the necrotic area of ​​the spleen. When the resection head 6 deviates to different angles, the crushing head 10 can crush and decompose the internal tissue of the resection head 6, and the angle of the crushing head 10 can change with the change of the angle of the resection head 6, ensuring that no matter what angle the resection head 6 is at, the internal tissue of the spleen can be effectively processed.

[0047] like Figure 6 As shown, there are two groups of first elastic telescopic rods 131 , which are symmetrically distributed on the surface of the collar 132 . The collar 132 can ensure that the angle of the crushing head 10 is consistent with that of the cutting head 6 .

[0048] like Figures 8 and 9The shown cutting locking mechanism 14 includes a locking platform 141 installed at the bottom of the inner wall of the left end of the inner tube 1, a boss 142 is installed on the left end surface of the first pull rod 8 near the end area of ​​the inner tube 1, an elastic block 143 is installed inside the boss 142, a pressing block 144 slides in the internal cavity of the locking platform 141, and the end of the pressing block 144 is connected to the third pull rod 145. At this time, the boss 142 on the surface of the first pull rod 8 will slide in the surface groove of the locking platform 141. When the elastic block 143 coincides with the locking hole, the cutting head 6 will be closed, and the boss 142 on the surface of the first pull rod 8 will slide in the surface groove of the locking platform 141. When the elastic block 143 coincides with the locking hole, the cutting head 6 will be closed, and the boss 142 on the surface of the first pull rod 8 will slide in the surface groove of the locking platform 141. When it coincides with the locking hole, the resection head 6 will be closed, and then the crushing head 10 will be driven to rotate and extend through the motor and the electric push rod 135, thereby crushing and decomposing the internal tissue of the crushing head 10, so that the crushed and decomposed tissue in the internal cavity of the resection head 6 falls into the collection bag. After the necrotic tissue is removed, the resection locking mechanism 14 can automatically close and lock the resection head 6, without the need for the staff to continuously pull the first pull rod 8, which greatly reduces the operational burden during the operation, and the resection locking mechanism 14 can prevent the resection head 6 from accidentally opening or moving during the crushing and decomposition process, thereby ensuring that the removed necrotic tissue will not fall into the abdominal cavity.

[0049] like Figures 8 and 9 As shown, one end of the locking platform 141 is provided with a chamfer, the end of the pressing block 144 is designed to be inclined, and a tension spring is installed at the other end of the pressing block 144. When the elastic block 143 contacts the locking platform 141, the chamfer setting facilitates the elastic block 143 to shrink inside the boss 142, and the tension spring can automatically reset after the elastic block 143 loses its locking function. At this time, the third pull rod 145 is pulled, and the pressing block 144 will squeeze the elastic block 143, and the spring on the surface of the first pull rod 8 will drive the connecting platform 5 to open and drive the cutting head 6 to open.

[0050] The working process of the technical solution provided by the present invention is as follows:

[0051] When performing a minimally invasive resection operation, the inner tube 1 and the outer tube 2 are first introduced into the patient's abdominal cavity through the minimally invasive incision, and then the spleen of the patient's diseased area is removed. At this time, the first pull rod 8 is pulled to make the connecting platform 5 slide toward the center on the surface of the mounting rod 4, so that the resection head 6 is closed. At this time, the boss 142 on the surface of the first pull rod 8 will slide in the surface groove of the locking platform 141. When the elastic block 143 coincides with the locking hole, the resection head 6 will be closed. Then the motor and the electric push rod 135 drive the crushing head 10 to rotate and extend, thereby crushing and decomposing the internal tissue of the crushing head 10. After the crushing is completed, the resection head 6 is extended into the collection bag in the abdominal cavity. At this time, the third pull rod 145 is pulled, and the pressing block 144 will squeeze the elastic block 143. The spring on the surface of the first pull rod 8 will drive the connecting platform 5 to open and drive the resection head 6 to open, so that the crushed and decomposed tissue in the internal cavity of the resection head 6 falls into the collection bag.

[0052] When removing a smaller necrotic area on the surface of the spleen, pulling the connecting plate 12 will drive the second pull rod 111 to move backward, and the second pull rod 111 will drive the slide 113 to slide in the side groove of the back end of the resection head 6, and will cause the resection head 6 to rotate in the mounting platform 114, thereby adjusting its own angle, so that the end of the resection head 6 can be brought into contact with the necrotic area of ​​the spleen during resection, and the second pull rod 111 will squeeze the second piston rod 118 when moving, so that the oil inside the second oil tank 117 enters the first oil tank 115 through the hose, and the oil inside the first oil tank 115 will push the first piston rod 116 to extend, thereby reducing the internal spacing of the resection head 6 and reducing the contact area between the resection head 6 and the necrotic area of ​​the spleen. When the head 6 rotates, the first elastic telescopic rod 131 will drive the ring 132 to adjust to the same angle as the resection head 6, so that the crushing head 10 can be offset together with the resection head 6, and then the first pull rod 8 is pulled to make the elastic block 143 coincide with the locking hole. At this time, the resection head 6 will be closed, and then the motor and the electric push rod 135 will drive the crushing head 10 to rotate and extend, thereby crushing and decomposing the internal tissue of the crushing head 10. After the crushing is completed, the resection head 6 is extended into the collection bag in the abdominal cavity. At this time, the third pull rod 145 is pulled, and the pressure block 144 will squeeze the elastic block 143. The spring on the surface of the first pull rod 8 will drive the connecting platform 5 to open and drive the resection head 6 to open, so that the crushed and decomposed tissue in the internal cavity of the resection head 6 falls into the collection bag.

[0053] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. While specific details are described in detail in the preferred embodiments to provide a thorough understanding of the present invention, those skilled in the art will be able to fully understand the present invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A spleen removal device capable of automatically decomposing tissue during minimally invasive splenectomy, comprising an inner cylinder, characterized in that: The outside of the inner cylinder is rotatably connected to the outer cylinder, the end of the outer cylinder is installed with a supporting plate, the inside of the inner cylinder is installed with a mounting rod, the surface of the mounting rod is slidably connected to the connecting platform, a cutting head is provided inside the inner cylinder, the end of the connecting platform is rotatably connected to a connecting rod, the end of the connecting rod is rotatably connected to a connecting block, a first pull rod is installed at the back end of the connecting block, a limit plate is installed inside the inner cylinder, the first pull rod is slidably connected to the limit plate, a crushing head is provided inside the inner cylinder, a protrusion is installed at the end of the cutting head, and the surface of the first pull rod is slidably connected to the connecting plate; the protrusion at the back end of the cutting head rotates inside the mounting platform, the mounting platform is slidably connected to the connecting platform, and the number of the connecting platforms is two groups, and they are symmetrically distributed on the surface of the mounting rod; An offset adjustment mechanism is provided at the back end of the resection head, and is used to adjust the angle of the resection head and, while adjusting the angle, can also adjust the internal spacing of the resection head. The offset adjustment mechanism includes a second pull rod slidably connected to the interior of the limit plate; A crushing follower assembly is provided on the surface of the mounting rod and inside the cutting head. The crushing follower assembly is used to enable the crushing head to deviate along with the cutting head when the cutting head angle deviates, so that the interior can be crushed and decomposed when the cutting head deflects. The crushing follower assembly includes a first elastic telescopic rod installed at the bottom of the back end of the cutting head, and also includes a turntable sleeved on the surface of the mounting rod, a collar is installed at the bottom of the first elastic telescopic rod, a second elastic telescopic rod is installed at the end of the turntable, a motor is installed at the end of the second elastic telescopic rod, an electric push rod is installed at the output end of the motor, the protruding end of the electric push rod is connected to the crushing head, and the collar is rotatably connected to the electric push rod; Cut-off locking mechanism; the cut-off locking mechanism is arranged inside the other end of the inner tube, and the cut-off locking mechanism can lock the first pull rod, so that the medical staff does not need to continuously pull the first pull rod, thereby reducing the fatigue of the medical staff's hands; After the resection head is closed, the motor and electric push rod drive the crushing head to rotate and extend, thereby crushing and decomposing the internal tissue of the resection head.

2. The spleen removal device capable of automatically decomposing tissues in minimally invasive splenectomy according to claim 1, characterized in that: The cutting head is in a frustum shape, and a cavity is provided inside the cutting head.

3. The spleen removal device capable of automatically decomposing tissues in minimally invasive splenectomy according to claim 2, characterized in that: A spring is sleeved on the surface of the first pull rod; one end of the spring is connected to the limiting plate, and the other end is connected to the back end of the connecting block.

4. The spleen removal device capable of automatically decomposing tissues in minimally invasive splenectomy according to claim 3, characterized in that: The surface of the crushing head is provided with arc stripes, and four groups of the arc stripes are distributed in a circumferential shape on the surface of the crushing head. The protrusion at the end of the crushing head is in the shape of a quadrangular pyramid.

5. The spleen removal device capable of automatically decomposing tissues in minimally invasive splenectomy according to claim 4, characterized in that: It also includes a slide table that slides in the slide groove of the side wall at the back end of the resection head, a slide bar is installed at the end of the second pull rod, both ends of the slide bar are slidably connected to the slide table, the other end of the second pull rod is connected to the connecting plate, the connecting plate is slidably connected to the surface of the first pull rod, a long plate is installed on the surface of the second pull rod, a first oil tank is installed on the surface of the long plate, a first piston rod is slidably connected inside the first oil tank, the end of the first piston rod is connected to the limit plate, a second oil tank is installed inside the connecting table, a second piston rod is slidably connected inside the second oil tank, the second piston rod is connected to the mounting table, and a hose is connected between the second oil tank and the first oil tank.

6. The spleen removal device capable of automatically decomposing tissues in minimally invasive splenectomy according to claim 5, characterized in that: Both ends of the slide are equipped with springs, both ends of the spring are connected to the inner wall of the slide groove on the back side wall of the cutting head, and a torsion spring is installed between the inside of the cutting head and the mounting platform.

7. The spleen removal device capable of automatically decomposing tissues in minimally invasive splenectomy according to claim 6, characterized in that: There are two groups of the first elastic telescopic rods, and the two groups of the first elastic telescopic rods are symmetrically distributed on the surface of the ring.

8. The spleen removal device capable of automatically decomposing tissues for minimally invasive splenectomy according to claim 7, characterized in that: The cutting locking mechanism includes a locking platform installed inside the inner cylinder, a boss is installed on the surface of the first pull rod, an elastic block is installed inside the boss, a pressing block slides in the internal cavity of the locking platform, and the end of the pressing block is connected to the third pull rod.

9. The spleen removal device capable of automatically decomposing tissues in minimally invasive splenectomy according to claim 8, characterized in that: One end of the locking platform is provided with a chamfer, the end of the pressing block is designed to be inclined, and the other end of the pressing block is provided with a tension spring.

Images