A disposable connector for minimally invasive laparoscopic cutting stapler

Abstract

The present invention discloses a connector for a disposable minimally invasive laparoscopic cutting stapler, comprising a nail magazine, a nail anvil, a component protective cover, a component sleeve, a notch, a steering connection component, a docking interface and a safety block, wherein the nail magazine is connected to the nail anvil to form a clamping structure, and the steering connection component is connected to the clamping structure formed by the connection between the nail magazine and the nail anvil; the component sleeve has a notch, the component sleeve is connected to the steering connection component, the component protective cover fastens the nail anvil, the steering connection component and the component sleeve; the safety block is located inside the component sleeve near one end of the docking interface. The present invention ensures that the connector and the stapler can be tightly connected, and at the same time simplifies the original four components into one component, which not only has a safety effect but also avoids the occurrence of false engagement, while also saving costs and having a simpler structure.

Description

Technical Field

[0001] The invention belongs to the field of medical instruments and relates to a laparoscopic surgical cutting stapler used in thoracoscopic surgery, and in particular to a disposable connector for a minimally invasive laparoscopic cutting stapler. Background Art

[0002] At present, minimally invasive surgery mainly uses endoscopes and various imaging technologies to enable surgeons to perform surgery without causing huge wounds to patients. The basic process is: after the patient is anesthetized, the doctor makes 3 to 4 small holes with a diameter of about 0.5 cm in the patient's abdominal wall. A miniature camera is placed in one of the holes, which is connected to a TV screen, while scissors, forceps and other surgical instruments are placed in the other small holes in the abdominal wall. The surgical process is basically the same as open surgery. The doctor looks at the screen and performs a series of operations such as clamping, anastomosis, and cutting on the diseased tissue.

[0003] Minimally invasive surgery is a new treatment method. The steps of minimally invasive surgery are the same as those of traditional surgery, but the trauma can be relatively small. The main advantages are: 1. Quick recovery after surgery and short hospitalization time; 2. High quality of life, concealed surgical incision, no obvious scars, local beauty, and tough abdominal wall; 3. The endoscopic camera has a magnifying effect and can clearly display the fine structure of the body's tissues. Compared with traditional open surgery, the field of view is clearer, so the operation is more accurate and precise, effectively avoiding unnecessary interference with organs outside the surgical site, and less intraoperative bleeding, making the operation safer; 4. The operation has small trauma and mild postoperative pain; 5. You can turn over and move around at will in the early postoperative period, and your intestinal function recovers quickly, which greatly reduces the occurrence of intestinal adhesions.

[0004] At present, in laparoscopic surgery, laparoscopic surgical cutting and anastomosis instruments are usually used for cutting and anastomosis of the esophagus, stomach, duodenum, small intestine, colon, rectum, appendix, gallbladder, pancreas and spleen in the digestive tract, and for cutting and anastomosis of the lungs and trachea in the respiratory tract, and for cutting and anastomosis of the bladder and uterus in the urogenital system, which can reduce the operation time and improve the quality of the operation. Due to the development of modern science and technology and the improvement of manufacturing technology, the medical staplers currently used in clinical practice are reliable in quality, easy to use, tight, and appropriate in tightness. In particular, they have the advantages of fast suturing, simple operation, and few side effects and surgical complications. Sometimes, tumors that were previously unresectable can be removed, and they are very popular and respected by clinical surgeons at home and abroad. The difference in the performance of this instrument plays a vital role in the overall surgical effect.

[0005] The current existing technology is to connect the docking interface of the connector to the cutting assembly interface in the stapler. When the connector is installed in the stapler, the connector safety will be locked and locked at the same time. Since only hearing the sound of the safety being locked cannot check whether the connector and the stapler are accurately connected, the connector will loosen during the operation, thus affecting the progress of the operation and possibly causing accidental injuries. In other words, the current existing technology cannot ensure that the connector and the stapler can be tightly connected and will not loosen during the operation. Summary of the invention

[0006] The purpose of the present invention is to provide a disposable minimally invasive laparoscopic cutting stapler connector to address the above shortcomings, in order to avoid the connector from loosening during the operation, thereby affecting the progress of the operation and possibly causing accidental injuries. A disposable minimally invasive laparoscopic cutting stapler stapler assembly is implemented by adopting the following technical solution.

[0007] A disposable connector for a minimally invasive laparoscopic cutting stapler comprises a stapler, a staple anvil, a component protective cover, a component sleeve, a notch, a steering connection component, a docking interface and a safety block, wherein the stapler is connected to the staple anvil to form a clamping structure, and the steering connection component is connected to the clamping structure formed by the connection between the stapler and the staple anvil; the component sleeve is provided with a notch, the component sleeve is connected to the steering connection component, and the component protective cover fastens the staple anvil, the steering connection component and the component sleeve; the safety block is located inside one end of the component sleeve close to the docking interface.

[0008] Preferably, it further comprises an inwardly concave non-closed curved surface and an ear plate, wherein the safety block is formed as a whole by the inwardly concave non-closed curved surface and the ear plate, and two symmetrical ear plates are erected on the top of the inwardly concave non-closed curved surface.

[0009] Preferably, it also includes a protrusion, a vertical notch, a major arc and a minor arc, wherein the major arc and the minor arc are both located at the lower end of the concave non-closed curved surface, the minor arc extends a distance in the vertical direction, the concave non-closed curved surface has a vertical notch at the side close to the minor arc, and there is a protrusion between the vertical notch and the minor arc inside the concave non-closed curved surface.

[0010] Preferably, it also includes a cutting knife, a steering connecting piece, an upper steering joint, a lower steering joint, a steering hook, a steering spring, a fixing block and a connecting piece, the top of the connecting piece is in a closed state, the end is in an open and closed state and is in a jaw shape, the connecting piece is four pieces stacked together and the top is abutted against the cutting knife, one side of the connecting piece is the steering spring and the fixing block, the steering spring fits on the connecting piece, the fixing block is installed on the steering spring, and the other side is the steering hook and one end of the steering hook is clamped inside by the lower steering joint and the upper steering joint; one end of the upper steering joint is connected to the cutting knife, and the other end of the lower steering joint and the upper steering joint correspond in size, and the two are clamped on the upper and lower sides of the connecting piece, and the two steering connecting pieces are respectively clamped on the upper and lower sides of the lower steering joint and the upper steering joint.

[0011] Preferably, it also includes a connecting plate lower pressure plate and a connecting plate upper pressure plate, wherein the connecting plate lower pressure plate and the connecting plate upper pressure plate are respectively connected to the lower end of the steering joint on the steering joint, and the connecting plate lower pressure plate and the connecting plate upper pressure plate are clamped together; the docking interface is the port at the other end of the connecting plate upper pressure plate, and the other end of the steering hook extends to the docking interface.

[0012] Preferably, it further comprises a connecting sleeve and a hook, wherein the connecting sleeve is clamped at the jaws at the end of the four superimposed connecting pieces, and the hook is located on the same side of the connecting piece as the anvil and at the end of the connecting piece.

[0013] Preferably, it also includes a protrusion, a notch, a hook groove and a protrusion, the two protrusions are symmetrically located on the pressure plate of the connecting piece close to the docking interface end, the notch cooperates with the protrusion, the hook groove engages with the hook, and the protrusion engages with the notch.

[0014] The beneficial effects of the present invention are:

[0015] In the current prior art, if the connector is not fully engaged during operation, it will become loose, which will affect the progress of the operation and may cause accidental injuries. However, after the connector of the present invention is connected to the stapler handle, it is in a loose state and must be rotated clockwise for a semicircle before it can be locked, so there will be no looseness. At the same time, the present invention simplifies the original four components into one component, which not only has a safety effect but also avoids the occurrence of false engagement, while also saving costs and having a simpler structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a side view of the present invention.

[0018] Figure 2 It is a schematic diagram of the insurance block of the present invention.

[0019] Figure 3 It is a schematic diagram of component group a of the present invention.

[0020] Figure 4 It is a schematic diagram of the upper pressing plate of the connecting sheet of the present invention.

[0021] Figure 5 It is a schematic diagram of the internal structure of the present invention.

[0022] Figure 6 Schematic diagram a of the steering connection assembly of the present invention.

[0023] Figure 7 Schematic diagram b of the steering connection assembly of the present invention.

[0024] Figure 8 This is a structural diagram of the connector interface end of the present invention.

[0025] In the figure: 1, nail magazine; 2, nail anvil; 3, component protection cover; 4, component sleeve 4; 4-1, first notch; 5, cutting knife; 6, steering connection assembly; 6-1, steering connecting plate; 6-2, upper steering joint; 6-3, lower steering joint; 6-4, steering hook; 6-5, steering spring; 6-6, fixing block; 7, connecting sleeve; 8, hook; 9, docking interface; 10, safety block; 10-1, concave non-closed curved surface; 10-2, ear plate; 10-3, first protrusion; 10-4, vertical notch; 10-5, major arc; 10-6, minor arc; 11, connecting plate lower pressure plate; 12, connecting plate upper pressure plate; 12-1, second protrusion; 12-2, second notch; 12-3, hook groove; 12-4, third protrusion; 13, connecting plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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. Example

[0027] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0028] like Figures 1 to 8As shown, a disposable connector for a minimally invasive laparoscopic cutting stapler includes a nail magazine 1, a nail anvil 2, an assembly protective cover 3, an assembly sleeve 4, a first notch 4-1, a steering connection assembly 6, a docking interface 9 and a safety block 10, wherein the nail magazine 1 is connected to the nail anvil 2 to form a clamping structure, and the steering connection assembly 6 is connected to the clamping structure formed by the connection between the nail magazine 1 and the nail anvil 2; the assembly sleeve 4 has a first notch 4-1, the assembly sleeve 4 is connected to the steering connection assembly 6, and the assembly protective cover 3 fastens the nail anvil 2, the steering connection assembly 6, and the assembly sleeve 4; the safety block 10 is located inside the assembly sleeve 4 at one end close to the docking interface 9.

[0029] The present invention also includes a concave non-closed curved surface 10-1 and an ear plate 10-2. The safety block 10 is formed as a whole by the concave non-closed curved surface 10-1 and the ear plate 10-2. Two symmetrical ear plates 10-2 are erected on the top of the concave non-closed curved surface 10-1.

[0030] The present invention also includes a first protrusion 10-3, a vertical notch 10-4, a major arc 10-5 and a minor arc 10-6, wherein the major arc 10-5 and the minor arc 10-6 are both located at the lower end of the concave non-closed curved surface 10-1, the minor arc 10-6 extends a distance in the vertical direction, the concave non-closed curved surface 10-1 has a vertical notch 10-4 at the side close to the minor arc 10-6, and the first protrusion 10-3 is located inside the concave non-closed curved surface 10-1 between the vertical notch 10-4 and the minor arc 10-6.

[0031] The present invention also includes a cutting knife 5, a steering connecting piece 6-1, an upper steering joint 6-2, a lower steering joint 6-3, a steering hook 6-4, a steering spring piece 6-5, a fixing block 6-6 and a connecting piece 13, wherein the top of the connecting piece 13 is in a closed state, the end is in an open and closed state and is in a jaw shape, the connecting piece 13 is composed of four pieces stacked together and the top is in contact with the cutting knife 5, one side of the connecting piece 13 is the steering spring piece 6-5 and the fixing block 6-6, the steering spring piece 6-5 is attached to the connecting piece 13, and the fixing block 6-6 is -6 is installed on the steering spring piece 6-5, and the other side is the steering hook 6-4. At the same time, one end of the steering hook 6-4 is clamped inside by the lower steering joint 6-3 and the upper steering joint 6-2; one end of the upper steering joint 6-2 is connected to the cutting knife 5, and the lower steering joint 6-3 and the other end of the upper steering joint 6-2 have corresponding sizes. At the same time, the two are clamped on the upper and lower sides of the connecting piece 13, and the two steering connecting pieces 6-1 are respectively clamped on the upper and lower sides of the lower steering joint 6-3 and the upper steering joint 6-2.

[0032] The present invention further comprises a connecting piece lower pressing plate 11 and a connecting piece upper pressing plate 12, wherein the connecting piece lower pressing plate 11 and the connecting piece upper pressing plate 12 are respectively connected to one end of the steering joint upper 6-2 and the steering joint lower 6-3, and the connecting piece lower pressing plate 11 and the connecting piece upper pressing plate 12 are clamped; the docking interface 9 is the other end port of the connecting piece upper pressing plate 12, and the other end of the steering hook 6-4 extends to the docking interface 9. The safety block 10 is clamped into the second notch 12-2 on the connecting piece upper pressing plate 12 through the first protrusion 10-3, and then plays a safety role through semicircular rotation.

[0033] The present invention further comprises a connecting sleeve 7 and a hook 8, wherein the connecting sleeve 7 is clamped at the end jaws of the four superimposed connecting pieces 13, and the hook 8 is located on the same side of the connecting piece 13 as the anvil 2 and at the end of the connecting piece 13.

[0034] The present invention also includes a second protrusion 12-1, a second notch 12-2, a hook groove 12-3 and a third protrusion 12-4. The two second protrusions 12-1 are symmetrically located on the upper pressure plate 12 of the connecting piece close to the end of the docking interface 9. The second notch 12-2 cooperates with the first protrusion 10-3. The hook groove 12-3 engages with the hook 8. The third protrusion 12-4 engages with the first notch 4-1. This engagement fixes the upper pressure plate 12 of the connecting piece and the component sleeve 4, and then cooperates with the component protective cover 3 to tightly fix the components of the entire connector.

[0035] In the present invention, the connecting piece 13 and the hook 8 are made of stainless steel.

[0036] The first protrusion 10-3 in the present invention also exists in the prior art, and the clamping is completed by the protrusion. Compared with the prior art, the combined use of the protrusion in the present invention is more convenient and has better effect. In the present invention, the safety assembly composed of the spring, small cover plate, button, etc. commonly used in the prior art is set as the safety block 10, and the safety block 10 is an integrated type. The safety assembly in the prior art is a sliding type, and the safety assembly (i.e., the safety block 10) of the present invention is a rotating type. In the prior art, when the connector is docked with the cutting assembly interface on the stapler handle, the stapler handle squeezes and moves the button in the safety assembly on the connector along the guide direction of the connector to dock and clamp the connector with the stapler handle. After the two are docked in this docking mode, the firing operation can be performed regardless of whether the connector and the stapler handle are completely engaged, so it is impossible to judge whether the connector and the stapler are completely engaged. This is a disadvantage, because if they are not completely engaged during the operation, they will become loose, which will affect the progress of the operation and may cause accidental injuries. The connector of the present invention is in a loose state after docking with the stapler handle, and must be rotated clockwise semicircularly before it can be clamped, so there will be no loosening phenomenon. At the same time, the present invention simplifies the original four parts into one part, which not only has a safety effect but also avoids the occurrence of false clamping phenomenon, while also saving costs and having a simpler structure.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disposable minimally invasive laparoscopic cutting stapler connector, characterized in that: The invention comprises a nail magazine (1), a nail anvil (2), a component protective cover (3), a component sleeve (4), a first notch (4-1), a steering connection component (6), a docking interface (9) and a safety block (10); the nail magazine (1) is connected to the nail anvil (2) to form a clamping structure; the steering connection component (6) is connected to the clamping structure formed by the connection between the nail magazine (1) and the nail anvil (2); the component sleeve (4) has a first notch (4-1); the component sleeve (4) is connected to the steering connection component (6); the component protective cover (3) securely connects the nail anvil (2), the steering connection component (6) and the component sleeve (4); the safety block (10) is located near the component sleeve (4) The interior of one end of the docking interface (9) also includes an inwardly concave non-closed curved surface (10-1) and an ear plate (10-2). The safety block (10) is formed as a whole by the inwardly concave non-closed curved surface (10-1) and the ear plate (10-2). Two symmetrical ear plates (10-2) are erected on the top of the inwardly concave non-closed curved surface (10-1). The safety block (10) also includes a first protrusion (10-3), a vertical notch (10-4), a major arc (10-5) and a minor arc (10-6). The major arc (10-5) and the minor arc (10-6) are both located at the lower end of the inwardly concave non-closed curved surface (10-1). The minor arc (10-6) extends a certain distance in the vertical direction. The inwardly concave non-closed curved surface (10-1) is close to the minor arc (10 -6) is provided with a vertical notch (10-4) at the side edge thereof, and a first protrusion (10-3) is provided in the inner cavity of the concave non-closed curved surface (10-1) between the vertical notch (10-4) and the inferior arc (10-6). The first protrusion (10-3) also includes a cutting knife (5), a steering connecting piece (6-1), an upper steering joint (6-2), a lower steering joint (6-3), a steering hook (6-4), a steering spring (6-5), a fixing block (6-6) and a connecting piece (13), wherein the top end of the connecting piece (13) is in a closed state, and the bottom end is in an open and closed state and is in a jaw shape. The connecting piece (13) is composed of four pieces stacked together and the top end is in contact with the cutting knife (5). One side of the connecting piece (13) is provided with the steering spring (6-5) and the A fixing block (6-6), the steering spring sheet (6-5) is attached to the connecting sheet (13), the fixing block (6-6) is installed on the steering spring sheet (6-5), the other side of which is the steering hook (6-4), and one end of the steering hook (6-4) is clamped inside by the lower steering joint (6-3) and the upper steering joint (6-2); one end of the upper steering joint (6-2) is connected to the cutting knife (5), the lower steering joint (6-3) and the other end of the upper steering joint (6-2) are of corresponding size, and the two are clamped to the upper and lower sides of the connecting sheet (13), and the two steering connecting sheets (6-1) are respectively clamped to the upper and lower side surfaces of the lower steering joint (6-3) and the upper steering joint (6-2).

2. A disposable minimally invasive laparoscopic cutting stapler connector according to claim 1, characterized in that: It also includes a connecting plate lower pressure plate (11) and a connecting plate upper pressure plate (12), wherein the connecting plate lower pressure plate (11) and the connecting plate upper pressure plate (12) are respectively connected to one end of the steering joint upper (6-2) and the steering joint lower (6-3), and the connecting plate lower pressure plate (11) and the connecting plate upper pressure plate (12) are snap-connected; the docking interface (9) is the other end port of the connecting plate upper pressure plate (12), and the other end of the steering hook (6-4) extends to the docking interface (9).

3. A disposable minimally invasive laparoscopic cutting stapler connector according to claim 2, characterized in that: It also comprises a connecting sleeve (7) and a hook (8), wherein the connecting sleeve (7) is clamped at the jaws at the end of the four superimposed connecting sheets (13), and the hook (8) is located on the same side of the connecting sheet (13) as the nail anvil (2) and the hook (8) is located at the end of the connecting sheet (13).

4. A disposable minimally invasive laparoscopic cutting stapler connector according to claim 3, characterized in that: It also includes a second protrusion (12-1), a second notch (12-2), a hook groove (12-3) and a third protrusion (12-4), wherein the two second protrusions (12-1) are symmetrically located on the upper pressure plate (12) of the connecting piece close to the docking interface (9), the second notch (12-2) cooperates with the first protrusion (10-3), the hook groove (12-3) engages with the hook (8), and the third protrusion (12-4) engages with the first notch (4-1).

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