A wrist ligament release planing tool

Abstract

The application discloses a wrist ligament release planing tool head and belongs to the field of surgical instruments. The tool head comprises an outer tube sheath assembly and a reciprocating release assembly. The outer tube sheath assembly comprises an outer sheath tail pipe and an outer sheath head end. The other end of the outer sheath tail pipe is connected with the outer sheath head end. The reciprocating release assembly comprises a rotating rod, a fixed block, a spring, a pull rod, a connecting rod, a positioning pin and a release knife. The rotating rod passes through the inner part of the outer sheath tail pipe. The other end of the rotating rod is provided with a rotating rod convex surface. The pull rod comprises a pull rod column. The one end of the pull rod column is provided with a pull rod convex surface. The rotating rod convex surface of the rotating rod is connected with the pull rod convex surface of the pull rod column. The fixed block is provided with the pull rod. The pull rod is connected with the tail end of the connecting rod. The front end of the connecting rod is connected with the release knife. The release knife positioning hole of the release knife is connected with the pin hole of the outer sheath head end through the positioning pin. The tool head can greatly reduce the surgical burden of doctors, shorten the surgical preparation time, improve the surgical efficiency, shorten the recovery period and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of surgical instruments, in particular to a wrist ligament release planing tool bit. BACKGROUND

[0002] Surgical instruments refer to medical instruments used in clinical surgery. In addition to conventional surgical instruments, there are also some specialized instruments for orthopedics, urology, obstetrics and gynecology, burns, plastic surgery, brain surgery, cardiothoracic surgery, general surgery, etc. In clinical practice, carpal tunnel syndrome is the most common peripheral nerve compression disorder and is also the most common surgical treatment for hand surgeons. The pathological basis of carpal tunnel syndrome is the compression of the median nerve in the wrist tunnel, which can cause finger numbness and muscle atrophy, making the patient a very painful disease. Office workers and other manual laborers are more prone to carpal tunnel syndrome. The median nerve of carpal tunnel syndrome patients is compressed in the wrist tunnel, causing numbness, tingling or burning pain in the radial side of the thumb, index finger, middle finger and ring finger. After daytime work, it worsens at night, and even wakes up in pain during sleep; the traditional surgical treatment method is to make a longitudinal incision along the palm and wrist skin lines, the incision is from the palm to the wrist above, the incision is more than 5 cm, after cutting the skin, the wrist transverse ligament is cut to release the compressed nerve.

[0003] The traditional surgical incision is long, the wound is large, the operation time is long, and there are many postoperative complications. Patients have postoperative scars in the exposed area of the hand, and some patients even form painful keloids, which not only cause pain and discomfort but also seriously affect the appearance. At the same time, patients need to be hospitalized, and the medical expenses are also high. SUMMARY

[0004] In view of the existing problems, the purpose of the present application is to provide a wrist ligament release planing tool bit to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A wrist ligament release planing tool head, comprising an outer tube sheath assembly and a reciprocating release assembly, the outer tube sheath assembly comprises an outer sheath tail pipe and an outer sheath head, one end of the outer sheath tail pipe is connected with an outer handle, the other end of the outer sheath tail pipe is connected with the outer sheath head, and a pin hole is arranged on the outer sheath head, the reciprocating release assembly comprises a rotating rod, a fixed block, a spring, a pull rod, a connecting rod, a positioning pin and a release cutter, one end of the rotating rod is connected with an inner handle, the rotating rod passes through the inside of the outer sheath tail pipe, the other end of the rotating rod is provided with a rotating rod convex surface, a rotating shoulder is arranged around the rotating rod convex surface, the pull rod comprises a pull rod column, one end of the pull rod column is provided with a pull rod convex surface, the other end of the pull rod column is provided with a pull rod hole, one end of the fixed block is provided with a rotating groove, the other end of the fixed block is provided with a pull rod groove, the rotating groove of the fixed block is connected with the rotating rod convex surface of the rotating rod, the pull rod groove of the fixed block is connected with the pull rod column, the rotating rod convex surface of the rotating rod is connected with the pull rod convex surface of the pull rod column, the spring is sleeved on the pull rod column, the pull rod is arranged on the fixed block, the pull rod is connected with the tail end of the connecting rod, the front end of the connecting rod is connected with the release cutter, and the release cutter positioning hole of the release cutter is connected with the pin hole of the outer sheath head through the positioning pin.

[0007] As a further scheme of the present application: one end of the outer sheath tail pipe is provided with a flange, and the one end of the outer sheath tail pipe is detachably connected with the outer handle convex block on the outer handle through the flange.

[0008] As a further scheme of the present application: the other end of the outer sheath tail pipe is provided with a protruding part, and the other end of the outer sheath tail pipe is detachably connected with the groove on the outer sheath head through the protruding part.

[0009] As a further scheme of the present application: the other end of the outer sheath tail pipe is detachably connected with the groove on the outer sheath head through the protruding part.

[0010] As a further scheme of the present application: the inner handle is provided with an inner handle hole, and one end of the rotating rod is detachably connected with the inner handle hole on the inner handle.

[0011] As a further scheme of the present application: the pull rod is provided with a pull rod hole, and the pull rod is connected with the tail end of the connecting rod through the pull rod hole.

[0012] As a further scheme of the present application: the release cutter is provided with a release cutter connecting rod hole, and the front end of the connecting rod is connected with the release cutter connecting rod hole of the release cutter.

[0013] Compared with existing technologies, the beneficial effects of this invention are as follows: The technical problem solved by this invention is to provide a disposable surgical instrument with a short surgical preparation cycle, fast cutting speed, wide applicability, low cost, high surgical efficiency, and short recovery period for wrist transverse ligament release shaving head. This invention expands the application range of existing shaving power units, avoiding the waste of existing hospital equipment resources. Compared with traditional surgical procedures, the reciprocating shaving head of this invention can greatly reduce the surgical burden on doctors. This invention reduces surgical preparation time, improves surgical efficiency, and shortens the recovery period. As a disposable surgical instrument, this release knife can reduce the cost of ligament release surgery.

[0014] The lateral movement of the outer sheath of this invention enables the retraction of the ligament release knife, protecting surrounding tissues from damage upon entry into the surgical site. The ligament release knife of this invention achieves reciprocating motion through the rotation of the inner handle, thereby cutting the ligament. This ligament release knife can be a disposable sterile surgical instrument, resulting in low surgical costs; it is ready for use immediately after sterilization packaging. This significantly shortens surgical preparation time. Compared to traditional surgery, this invention offers faster and more convenient cutting, is simpler to operate, and reduces the burden on the surgeon. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a planer head for releasing wrist ligaments.

[0016] Figure 2 A schematic diagram of the outer handle of a planer head used for wrist ligament release.

[0017] Figure 3 A schematic diagram of the outer sheath assembly in a planing head for wrist ligament release.

[0018] Figure 4 A schematic diagram of the inner handle in a planer head for wrist ligament release.

[0019] Figure 5 A schematic diagram of the reciprocating release component in a planer head for wrist ligament release.

[0020] Figure 6 A schematic diagram of the tie rod in a planer head for wrist ligament release.

[0021] Figure 7 A schematic diagram of the fixing block in the planer head for wrist ligament release.

[0022] Figure 8 This is a schematic diagram of the release blade in a planer head for wrist ligament release.

[0023] Figure 9 Diagram showing the reciprocating motion of the release blade in the planer head for wrist ligament release.

[0024] In the figure: 1, inner handle; 110, inner handle hole; 2, outer handle; 21, outer handle protruding block; 3, outer tube sheath assembly; 31, flange; 32, outer sheath tail pipe; 33, protruding part; 34, groove; 35, outer sheath head; 36, pin hole; 4, reciprocating release assembly; 5, rotating rod; 6, fixed block; 61, rotating groove; 62, pull rod groove; 7, spring; 8, pull rod; 81, pull rod convex surface; 82, pull rod column; 83, pull rod hole; 9, connecting rod; 10, positioning pin; 11, release knife; 111, release knife connecting rod hole; 112, release knife positioning hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0026] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connected", "connected" should be understood broadly; for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, or it can be mechanically connected, or it can be electrically connected, or it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Please refer to Figures 1-9 As shown in the figure, a wrist ligament release planing tool head, comprising an outer tube sheath assembly 3 and a reciprocating release assembly 4, the outer tube sheath assembly 3 comprises an outer sheath tail pipe 32 and an outer sheath head 35, the outer sheath tail pipe 32 is provided with a flange 31 at one end, the outer sheath tail pipe 32 is detachably connected to the outer handle protruding block 21 on the outer handle 2 through the flange 31, the outer sheath tail pipe 32 is provided with a protruding part 33 at the other end, the outer sheath tail pipe 32 is detachably connected to the groove 34 on the outer sheath head 35 through the protruding part 33, the outer sheath head 35 is provided with a pin hole 36, during work, the outer tube sheath assembly 3 is moved by the outer handle 2, the movement of the outer sheath head 35 is driven by the outer handle 2, which facilitates the use of the device, is beneficial to the subsequent operation, ensures safety, and facilitates the use of the device.

[0028] The reciprocating loosening assembly 4 comprises a rotating rod 5, a fixed block 6, a spring 7, a pull rod 8, a connecting rod 9, a positioning pin 10 and a loosening cutter 11. One end of the rotating rod 5 is detachably connected with the inner handle hole 110 of the inner handle 1. During operation, the rotating rod 5 is conveniently operated through the inner handle 1, which is beneficial to drive the subsequent loosening cutter 11 to work, ensures safety and facilitates use of the device.

[0029] The rotating rod 5 passes through the outer sheath tail pipe 32, and the other end of the rotating rod 5 is provided with a rotating rod convex surface. A rotating shoulder is arranged around the rotating rod convex surface. The pull rod 8 comprises a pull rod column 82. One end of the pull rod column 82 is provided with a pull rod convex surface 81, and the other end of the pull rod column 82 is provided with a pull rod hole 83. One end of the fixed block 6 is provided with a rotating groove 61, and the other end of the fixed block 6 is provided with a pull rod groove 62. The rotating groove 61 of the fixed block 6 is connected with the rotating rod convex surface of the rotating rod 5 in a matched mode. The pull rod groove 6 of the fixed block 6 is connected with the pull rod column 82 in a matched mode. The rotating rod convex surface of the rotating rod 5 is connected with the pull rod convex surface 81 of the pull rod column 82 in a contact mode. The spring 7 is sleeved on the pull rod column 82. The other end of the rotating rod 5 is provided with the fixed block 6. The fixed block 6 is provided with the pull rod 8. The pull rod hole 83 of the pull rod 8 is connected with the tail end of the connecting rod 9. The front end of the connecting rod 9 is connected with the loosening cutter connecting rod hole 111 of the loosening cutter 11. The loosening cutter positioning hole 112 of the loosening cutter 11 is connected with the pin hole 36 of the outer sheath head end 35 through the positioning pin 10. The rotation of the rotating rod 5 and the pull rod 8 is driven by the inner handle 1, which drives the movement of the loosening cutter 11, facilitates the operation and ensures safety and facilitates use of the device. After the rotating rod is matched with the inner handle hole, the rotating groove of the fixed block and the pull rod groove are matched with the rotating shoulder of the rotating rod and the pull rod column of the pull rod respectively. The pull rod convex surface is kept in contact with the convex surface of the rotating rod. Then the spring is installed in the pull rod column and is pressed into the fixed block. The tail section of the connecting rod is matched with the pull rod hole. The front section of the connecting rod is matched with the loosening cutter and the connecting rod hole. The outer tube sheath is fastened through the flange and the outer handle convex. Then the reciprocating loosening assembly is inserted into the outer handle and the outer tube sheath tail section. Finally, the loosening cutter is fixed in the outer tube sheath head end through the positioning pin. When the wrist ligament loosening planing cutter head enters the operation site, the loosening cutter needs to be retracted into the outer tube sheath head end to prevent the loosening cutter from damaging other tissues. Only the outer tube sheath needs to be pulled out. The outer tube sheath is buckled with the outer handle during operation. The loosening cutter realizes reciprocating cutting through the rotation of the rotating rod. The surgical doctor greatly releases the arm pressure, greatly shortens the operation time and improves the cutting rate.

[0030] The wrist transverse ligament release planing tool provided by the present application has the advantages of short surgical preparation period, fast cutting speed, wide use range, low cost, fast surgical efficiency and short recovery period.

[0031] The left and right movement of the outer tube sheath can realize the release of the tool, and when entering the surgical site, the surrounding tissue can be protected from being damaged. The release tool of the present application can be a disposable sterile surgical instrument, and the surgical cost is low, and it can be used immediately after unpacking.

[0032] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application.

[0033] In addition, it should be understood that, although the present application is described in terms of embodiments, each embodiment does not contain only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A planing tool for releasing wrist ligaments, characterized in that, The assembly includes an outer sheath assembly (3) and a reciprocating release assembly (4). The outer sheath assembly (3) includes an outer sheath tube tail tube (32) and an outer sheath tube head end (35). One end of the outer sheath tube tail tube (32) is connected to an outer handle (2), and the other end of the outer sheath tube tail tube (32) is connected to the outer sheath tube head end (35). The outer sheath tube head end (35) is provided with a pin hole (36). The reciprocating release assembly (4) includes a rotating rod (5), a fixing block (6), a spring (7), a pull rod (8), a connecting rod (9), a positioning pin (10), and a release knife (11). One end of the rotating rod (5) is connected to an inner handle (1). The rotating rod (5) passes through and is set inside the outer sheath tube tail tube (32). The other end of the rotating rod (5) is provided with a rotating rod convex surface. A rotating shoulder is provided around the outer periphery of the rotating rod convex surface. The pull rod (8) includes a pull rod post (82). One end of the pull rod post (82) is provided with a pull rod convex surface (86). 1) The other end of the tie rod column (82) is provided with a tie rod hole (83), one end of the fixing block (6) is provided with a rotating groove (61), and the other end of the fixing block (6) is provided with a tie rod groove (62). The rotating groove (61) of the fixing block (6) and the rotating rod convex surface of the rotating rod (5) are connected in a fit. The tie rod groove (6) of the fixing block (6) and the tie rod column (82) are connected in a fit. The rotating rod convex surface of the rotating rod (5) and the tie rod convex surface of the tie rod column (82) are connected in a fit. (81) Contact connection, spring (7) is sleeved on the pull rod column (82), the other end of the rotating rod (5) is provided with a fixing block (6), the fixing block (6) is provided with a pull rod (8), the pull rod (8) and the tail end of the connecting rod (9) are connected, the front end of the connecting rod (9) is connected to the loosening knife (11), the loosening knife positioning hole (112) on the loosening knife (11) is connected to the pin hole (36) of the head end (35) of the outer sheath tube through the positioning pin (10).

2. The wrist ligament release planing cutter head according to claim 1, characterized in that, The outer sheath tube tail tube (32) is provided with a flange (31) at one end, and the outer sheath tube tail tube (32) is detachably connected to the outer handle protrusion (21) on the outer handle (2) through the flange (31).

3. The wrist ligament release planing cutter head according to claim 2, characterized in that, The other end of the outer sheath tube tail tube (32) is provided with a protrusion (33), and the other end of the outer sheath tube tail tube (32) is detachably connected to the groove (34) on the outer sheath tube head end (35) through the protrusion (33).

4. The wrist ligament release planing cutter head according to claim 3, characterized in that, The other end of the outer sheath tail tube (32) is detachably connected via a protrusion (33) and a groove (34) on the outer sheath head end (35).

5. The wrist ligament release planing cutter head according to claim 4, characterized in that, The inner handle (1) is provided with an inner handle hole (110), and one end of the rotating rod (5) is detachably connected to the inner handle hole (110) on the inner handle (1).

6. The wrist ligament release planing cutter head according to claim 5, characterized in that, The pull rod (8) is provided with a pull rod hole (83), and the pull rod (8) is connected to the tail end of the connecting rod (9) through the pull rod hole (83).

7. The wrist ligament release planing cutter head according to claim 6, characterized in that, The loosening knife (11) is provided with a loosening knife connecting rod hole (111), and the front end of the connecting rod (9) is connected to the loosening knife connecting rod hole (111) of the loosening knife (11).

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