A meningeal and bone flap connecting clamp and clamp

Abstract

The invention discloses a meningeal and bone flap connecting clamp and a clamp, belonging to the technical field of medical equipment. The connecting clamp comprises a lower splint, a boss is provided at the middle position of the upper surface of the lower splint, square holes are provided on both sides of the boss of the lower splint, nut sleeves are provided in the square holes, the boss of the lower splint is hinged with two upper splints through a pin, the middle position of the upper splint is hollowed out, a screw seat is provided at the top of the hollow arc of the upper splint, a cross screw is provided in the screw seat, and the cross screw is connected with the nut sleeve; the clamp comprises: ears are provided at both sides of the front end of the shell, the ears are hinged with the connecting rod, the other end of the connecting rod is hinged with the clamp head, a nut is provided at the end of the shell, a wire tube is provided in the nut, ears are provided at both sides of the front end of the wire tube, and the ears are hinged with the clamp head; the connecting clamp is made of degradable material, and as the meningeal or bone flap heals, the connecting clamp is slowly degraded, which has great benefits for the patient's rehabilitation.

Description

Technical Field

[0001] The invention relates to a meningeal and bone flap connecting clamp and a clamping device, belonging to the technical field of medical equipment. Background Art

[0002] During transnasal and craniotomy surgeries, bones need to be removed and the dura mater needs to be cut. After the operation, the dura mater needs to be repaired and sutured to achieve watertightness. Bone defects also need to be repaired. However, transnasal surgery is difficult to operate in a very small space, suturing is difficult, and bone fragment fixation is also difficult. If the surgical incision is not closed well, cerebrospinal fluid leakage and infection will occur. Therefore, research on this clip can assist the surgeon in repairing dura mater and bone defects in a small space. Summary of the invention

[0003] In order to solve the deficiencies of the above-mentioned prior art, the present invention provides a meningeal and bone flap connecting clamp and a clamp, through which the clamp is pre-fixed to the meningeal or bone flap with a shape close to the wound to be repaired, and the clamp is clamped on the meningeal or bone flap at the edge of the wound to be repaired.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a meningeal and bone flap connecting clamp and clamp, including a connecting clamp and a clamp, the connecting clamp including a lower splint at the bottom, grooves are arranged on both sides of the upper surface of the lower splint, a boss is arranged in the middle position of the upper surface of the lower splint, the boss is provided with a through hole running through the front and back, square holes are arranged on both sides of the boss of the lower splint, the thick surface of the square hole plate is provided with a through hole running through the front and back, a nut sleeve is arranged in the square hole, the nut sleeve is a three-way type, the third tube of the nut sleeve is provided with an internal thread, the nut sleeve is hinged to the lower splint through the pin shaft and the through hole of the bottom plate, the boss of the lower splint is hinged to the first upper splint and the second upper splint through the pin shaft, the front end of the first upper splint is a straight plate type, the end of the first upper splint is a circular arc plate type, and the arc plate type at the end of the first upper splint is in the middle The middle position is hollowed out, and a cylindrical countersunk hole is provided in the direction of the center of the arc top of the wide surface of the two side plates of the arc plate type at the end of the first upper splint, and the inner hole of the cylindrical countersunk hole is provided with a thread, and a through hole is provided at the end of the wide surface of the two side plates of the first upper splint, and notches are provided on both sides of the arc plate end of the first upper splint; the front end of the second upper splint is a straight plate type, and the end of the second upper splint is an arc plate type, and the middle position of the arc plate type at the end of the second upper splint is hollowed out, and a cylindrical countersunk hole is provided in the direction of the center of the arc top of the wide surface of the two side plates of the arc plate type at the end of the second upper splint, and the inner hole of the cylindrical countersunk hole is provided with a thread, and through holes are provided at the ends of the wide surfaces of the two side plates of the second upper splint, and a notch is provided on the inner side of the arc plate end of the second upper splint, the end of the first upper splint fits with the end of the second upper splint, and the hollowed-out position is the lower splint boss.

[0005] A screw seat is provided at the hollow arc top of the first upper splint, and the screw seat is cylindrical, with a cylindrical countersunk hole in the middle of the upper surface, and symmetrical cylindrical grooves on the side walls of the screw seat. A screw is provided in the inner hole of the cylindrical countersunk hole of the first upper splint, and a smooth bar is provided on the top of the screw. The smooth bar of the screw is topped in the cylindrical groove of the screw seat, and a cross screw is provided in the cylindrical countersunk hole of the screw seat. The cross screw is connected to the nut sleeve, and a convex ridge is provided on the straight plate lower surface of the first upper splint. By tightening the cross screw, the straight plate convex ridge of the first upper splint can be matched with the groove of the lower splint.

[0006] A screw seat is provided at the hollow arc top of the second upper splint. The screw seat is cylindrical, and a cylindrical countersunk hole is provided in the middle of the upper surface. A symmetrical cylindrical groove is provided on the side wall of the screw seat. A screw is provided in the inner hole of the cylindrical countersunk hole of the second upper splint, and a smooth bar is provided on the top of the screw. The smooth bar of the screw is topped in the cylindrical groove of the screw seat. A cross screw is provided in the cylindrical countersunk hole of the screw seat. The cross screw is connected to the nut sleeve. A convex ridge is provided on the straight plate lower surface of the second upper splint. By tightening the cross screw, the straight plate convex ridge of the second upper splint can be matched with the groove of the lower splint.

[0007] The clamp comprises: an outer shell, a wire tube, a cross screwdriver, a nut, two pliers heads and two connecting rods. The outer shell is a tube body, a handle is provided at the end of the tube body, ears are provided on both sides of the front end of the tube body, the ears are provided with through holes, the tube body is set as a hollow structure near the end, a nut is provided at the hollow part of the outer shell, the nut is circular and has an internal thread, a wire tube is provided in the nut, the wire tube is tubular, the end of the wire tube is provided with an external thread, ears are provided on both sides of the front end of the wire tube, the ears on both sides of the front end of the wire tube are provided with through holes, the connecting rod is a plate with through holes at both ends, the pliers head is L-shaped, the end of the pliers head is provided with a through hole, the L-shaped corner of the pliers head is provided with a through hole, the ears on both sides of the outer shell are respectively hinged to the two connecting rods, the other ends of the two connecting rods are respectively hinged to the through holes at the corners of the pliers head, the two ears of the wire tube are respectively hinged to the through holes at the ends of the two pliers heads, and a cross screwdriver is provided in the wire tube; by rotating the nut, the wire tube is driven to move back and forth in the outer shell, thereby driving the rotation of the pliers head to realize the closing or separation of the two pliers heads.

[0008] The beneficial effects of the present invention are: the present invention is easy to operate, reduces the duration of the operation, increases the safety of the operation, effectively repairs brain tissue meninges or bone flaps, uses degradable materials, and as the meninges or bone flaps heal, the connecting clips slowly degrade, eliminating the need for a secondary clip removal operation on the patient, which is of great benefit to the patient's recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0010] Figure 1 It is a structural schematic diagram of the present invention.

[0011] Figure 2 This is the front view of the connecting clip.

[0012] Figure 3 A top view of the connecting clip.

[0013] Figure 4 A perspective view of the connecting clip.

[0014] Figure 5 A three-dimensional diagram of the clamp.

[0015] Numbers in the figure:

[0016] 1. Connecting clamp, 101. Lower clamp, 102. First upper clamp, 103. Second upper clamp, 104. Nut sleeve, 105. Cross screw, 106. Screw, 107. Screw seat, 2. Clamp, 201. Housing, 202. Wire tube, 203. Cross screwdriver, 204. Nut, 205. Clamp head, 206. Connecting rod. DETAILED DESCRIPTION

[0017] like Figure 1-5 As shown, a meningeal and bone flap connecting clamp and clamp comprises a connecting clamp 1 and a clamp 2, wherein the connecting clamp 1 comprises a lower splint 101 at the bottom, grooves are arranged on both sides of the upper surface of the lower splint 101, a boss is arranged in the middle position of the upper surface of the lower splint 101, the boss is provided with a through hole running through the front and back, square holes are arranged on both sides of the boss of the lower splint 101, the thick surface of the square hole plate is provided with a through hole running through the front and back, a nut sleeve 104 is arranged in the square hole, the nut sleeve 104 is a three-way type, the third tube of the nut sleeve 104 is provided with an internal thread, the nut sleeve 104 is hinged to the lower splint 101 through a pin shaft and the through hole of the bottom plate, the boss of the lower splint 101 is hinged to the first upper splint 102 and the second upper splint 103 through a pin shaft, the front end of the first upper splint 102 is a straight plate type, the end of the first upper splint 102 is a circular arc plate type, and the middle position of the circular arc plate type at the end of the first upper splint 102 The first upper plate 102 is hollowed out, and a cylindrical countersunk hole is provided in the direction of the center of the arc top of the wide surface of the two side plates of the arc plate type at the end of the first upper splint 102, and the inner hole of the cylindrical countersunk hole is provided with a thread, and the ends of the wide surfaces of the two side plates of the first upper splint 102 are provided with through holes, and notches are provided on both sides of the arc plate-shaped end of the first upper splint 102; the front end of the second upper splint 103 is a straight plate type, and the end of the second upper splint 103 is an arc plate type, and the middle position of the arc plate type at the end of the second upper splint 103 is hollowed out, and a cylindrical countersunk hole is provided in the direction of the center of the arc top of the wide surface of the two side plates of the arc plate type at the end of the second upper splint 103, and the inner side of the arc plate-shaped end of the second upper splint 103 is provided with a notch, the end of the first upper splint 102 is matched with the end of the second upper splint 103, and the hollow position is the boss of the lower splint 101.

[0018] A screw seat 107 is provided at the hollow arc top of the first upper clamping plate 102. The screw seat 107 is cylindrical, and a cylindrical countersunk hole is provided in the middle of the upper surface. Symmetrical cylindrical grooves are provided on the side walls of the screw seat 107. A screw 106 is provided in the inner hole of the cylindrical countersunk hole of the first upper clamping plate 102. A smooth bar is provided on the top of the screw 106. The smooth bar of the screw 106 is topped in the cylindrical groove of the screw seat 107. A cross screw 105 is provided in the cylindrical countersunk hole of the screw seat 107. The cross screw 105 is connected to the nut sleeve 104. A convex ridge is provided on the straight plate lower surface of the first upper clamping plate 102. By tightening the cross screw 105, the straight plate convex ridge of the first upper clamping plate 102 is matched with the groove of the lower clamping plate 101.

[0019] A screw seat 107 is provided at the hollow arc top of the second upper clamping plate 103. The screw seat 107 is cylindrical, and a cylindrical countersunk hole is provided in the middle of the upper surface. Symmetrical cylindrical grooves are provided on the side walls of the screw seat 107. A screw 106 is provided in the inner hole of the cylindrical countersunk hole of the second upper clamping plate 103. A smooth bar is provided on the top of the screw 106. The smooth bar of the screw 106 is topped in the cylindrical groove of the screw seat 107. A cross screw 105 is provided in the cylindrical countersunk hole of the screw seat 107. The cross screw 105 is connected to the nut sleeve 104. A convex ridge is provided on the straight plate lower surface of the second upper clamping plate 103. By tightening the cross screw 105, the straight plate convex ridge of the second upper clamping plate 103 is matched with the groove of the lower clamping plate 101.

[0020] The clamp 2 includes: a shell 201, a wire tube 202, a cross screwdriver 203, a nut 204, two pliers heads 205 and two connecting rods 206. The shell 201 is a tube body, a handle is provided at the end of the tube body, ears are provided on both sides of the front end of the tube body, the ears are provided with through holes, and the tube body is set as a hollow structure near the end. A nut 204 is provided at the hollow part of the shell 201. The nut 204 is circular and has an internal thread. The wire tube 202 is provided in the nut 204. The wire tube 202 is tubular, and an external thread is provided at the end of the wire tube 202. Ears are provided on both sides of the front end of the wire tube 202, and the ears on both sides of the front end of the wire tube 202 are provided with through holes. The connecting rod 206 is a plate with through holes at both ends, the pliers head 205 is L-shaped, a through hole is provided at the end of the pliers head 205, and a through hole is provided at the L-shaped corner of the pliers head 205. The ears on both sides of the shell 201 are respectively hinged to the two connecting rods 206, and the other ends of the two connecting rods 206 are respectively hinged to the through holes at the corners of the pliers head 205. The two ears of the wire tube 202 are respectively hinged to the through holes at the ends of the two pliers heads 205, and a cross screwdriver 203 is provided in the wire tube 202; by rotating the nut 204, the wire tube 202 is driven to move back and forth in the shell 201, thereby driving the pliers head 205 to rotate, thereby realizing the closing or separation of the two pliers heads 205. Specific operation method: fix it with the meninges or bone flap in advance through the connecting clip 1, turn the nut 204, and use the two clamp heads 205 of the clamp 2 to clamp in the cylindrical countersunk holes on the wide sides of the arc plate of the upper clamp plate to achieve the clamping of the connecting clip 1 by the clamp 2, align the cross screwdriver 203 with the cross screw 105, enter the brain, correspond the position of the connecting clip 1 with the meninges or bone flap to be connected, turn the cross screwdriver 203, tighten the cross screw 105, and then turn the nut 204 to separate the two clamp heads 205.

Claims

1. A meningeal and bone flap connection clip, characterized by: The connecting clamp (1) comprises a lower clamping plate (101) at the bottom, grooves are provided on both sides of the upper surface of the lower clamping plate (101), a boss is provided in the middle of the upper surface of the lower clamping plate (101), and a through hole is provided on the boss that passes through the front and back. Square holes are provided on both sides of the boss of the lower clamping plate (101), and a through hole is provided on the thick surface of the square hole plate that passes through the front and back. A nut sleeve (104) is provided in the square hole, and the nut sleeve (104) is a three-way type, and the third tube of the nut sleeve (104) is provided. The inner thread is provided, the nut sleeve (104) is hinged to the lower clamping plate (101) through a pin shaft and a through hole of the bottom plate, the boss of the lower clamping plate (101) is hinged to the first upper clamping plate (102) and the second upper clamping plate (103) through a pin shaft, the front end of the first upper clamping plate (102) is a straight plate type, the end of the first upper clamping plate (102) is an arc plate type, the middle position of the arc plate type at the end of the first upper clamping plate (102) is hollow, and the end of the first upper clamping plate (102) is A cylindrical countersunk hole is provided in the direction of the center of the arc top of the wide surface of the two side plates of the arc plate type, and the inner hole of the cylindrical countersunk hole is provided with a thread, and through holes are provided at the ends of the wide surfaces of the two side plates of the first upper splint (102), and notches are provided on both sides of the arc plate end of the first upper splint (102); the front end of the second upper splint (103) is a straight plate type, the end of the second upper splint (103) is an arc plate type, the middle position of the arc plate type at the end of the second upper splint (103) is hollow, and the second upper splint (103) is a hollow plate. A cylindrical countersunk hole is provided at the center of the arc top of the wide surface of the two side plates of the arc plate type at the end (103), and the inner hole of the cylindrical countersunk hole is provided with a thread. A through hole is provided at the end of the wide surface of the two side plates of the second upper clamping plate (103). A notch is provided on the inner side of the arc plate type end of the second upper clamping plate (103). The end of the first upper clamping plate (102) is matched with the end of the second upper clamping plate (103), and the hollow position of the through hole of the first upper clamping plate (102) is a boss of the lower clamping plate (101).

2. The meningeal and bone flap connecting clamp according to claim 1 is characterized in that: A screw seat (107) is provided at the hollow arc top of the first upper clamping plate (102), the screw seat (107) is cylindrical, a cylindrical countersunk hole is provided in the middle of the upper surface, a symmetrical cylindrical groove is provided on the side wall of the screw seat (107), a screw rod (106) is provided in the inner hole of the cylindrical countersunk hole of the first upper clamping plate (102), a smooth bar is provided at the top of the screw rod (106), the smooth bar of the screw rod (106) is in the cylindrical groove of the screw seat (107), a cross screw (105) is provided in the cylindrical countersunk hole of the screw seat (107), the cross screw (105) is connected to the nut sleeve (104), and a convex ridge is provided on the straight plate lower surface of the first upper clamping plate (102).

3. The meningeal and bone flap connecting clamp according to claim 1 is characterized by: A screw seat (107) is provided at the hollow arc top of the second upper clamping plate (103), the screw seat (107) is cylindrical, a cylindrical countersunk hole is provided in the middle of the upper surface, a symmetrical cylindrical groove is provided on the side wall of the screw seat (107), a screw rod (106) is provided in the inner hole of the cylindrical countersunk hole of the second upper clamping plate (103), a smooth bar is provided at the top of the screw rod (106), the smooth bar of the screw rod (106) is in the cylindrical groove of the screw seat (107), a cross screw (105) is provided in the cylindrical countersunk hole of the screw seat (107), the cross screw (105) is connected to the nut sleeve (104), and a convex ridge is provided on the straight plate lower surface of the second upper clamping plate 9103.

4. The meningeal and bone flap connecting clamp according to claim 1 is characterized in that: The connecting clip (1) is made of a degradable material.

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