Visual trephine handle and trephine

Abstract

The utility model relates to a visual trephine handle and a trephine, belongs to the technical field of medical instruments, and solves the technical problem that fingers of a doctor are easy to fatigue and damage when the visual trephine handle is used for girdling. The visible trephine handle comprises a trephine hole, a connecting part and an operating part, wherein the operating part comprises a palm area, a thumb area and an index finger area; the thumb area comprises a first concave part, and the first concave part is provided with a first rotating part; the index finger area comprises a second concave part, and the second concave part is provided with a second rotating part; the first rotating part and the second rotating part are two side walls, close to the mirror hole, of the first concave part and the second concave part respectively, and the thumb and the index finger can apply thrust to the first rotating part and the second rotating part respectively to enable the handle to rotate in a reciprocating mode. According to the visible trephine handle and the trephine, fingers are not prone to fatigue and injury, force exerting is convenient, control is easy, and the comfort degree of the hand is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a visual ring saw handle and a ring saw. Background Art

[0002] The visual trephine is a commonly used tool for endoscopic lumbar surgery. Existing visual bone saws usually have a flat handle, a cross handle, and a three-sided handle. When using it, the doctor needs to hold the trephine handle with his hand, press hard toward the spine and rotate the handle at the same time, so that the circular teeth can cut the target area. However, since the trephine handle is thin, the contact with the hand is almost all in the fingers. The fingers need to hold the handle at the same time, and pressure and rotation force need to be applied to the handle. When cutting hard for a long time, the fingers will quickly get tired, and when there are edges and corners on the trephine handle, it will also damage the hand, which not only affects the efficiency of the operation, but also causes trouble for the doctor. Utility Model Content

[0003] In view of the above analysis, the embodiments of the utility model are intended to provide a visual trepanation handle and a trepanation to solve the technical problem that the doctor's fingers are easily fatigued and injured when the visual trepanation handle is used for circumcision.

[0004] The purpose of this utility model is mainly achieved through the following technical solutions:

[0005] A visual trepanation handle, comprising a mirror hole, a connecting portion and an operating portion; the mirror hole is a through hole that runs through both sides of the handle and is used to insert a spinal endoscope; the connecting portion is located on one side of the handle and is used to fix and connect the saw rod of the visual trepanation; the operating portion is located on the other side of the handle and is used to hold and operate after being attached to the palm; the operating portion comprises a palm area, a thumb area and an index finger area; the thumb area and the index finger area both comprise a fingertip segment and a finger root segment, the mirror hole is located between the two finger root segments, and the palm area is connected to the ends of the two finger root segments; the thumb area comprises the A recessed portion, the surface of the first recessed portion is a smooth curved surface that fits the surface of the thumb, and the first recessed portion is provided with a first rotating portion; the index finger area includes a second recessed portion, the surface of the second recessed portion is a smooth curved surface that fits the surface of the index finger, and the second recessed portion is provided with a second rotating portion; the first rotating portion and the second rotating portion are respectively two side walls of the first recessed portion and the second recessed portion close to the mirror hole, and the thumb and index finger can respectively apply thrust to the first rotating portion and the second rotating portion to make the handle rotate back and forth.

[0006] Furthermore, anti-slip parts are provided on both sides of the palm area to prevent the palm from sliding on the palm area when pressing and rotating.

[0007] Furthermore, the anti-slip portion is a raised smooth curved surface.

[0008] Furthermore, the anti-slip portion is medical silica gel or medical rubber.

[0009] Furthermore, the connecting portion comprises a slot, and the inner diameter of the slot matches the outer diameter of the end of the saw bar.

[0010] Furthermore, the connecting portion is also provided with a screw hole communicating with the slot, and the connecting portion is fixedly connected to the end of the saw rod by means of screws.

[0011] Furthermore, the connecting portion also includes a quick connector, and the quick connector includes a clamping cam.

[0012] Furthermore, the connecting portion is used to fix the handle of a standard visual trepanning saw, including a straight handle or a cross handle.

[0013] Furthermore, the connecting portion has a receiving cavity, and the receiving cavity matches the outer wall of the handle of a standard visual trepan saw.

[0014] A visual ring saw has the visual ring saw handle described above, wherein the handle is integrally formed with the saw bar. Compared with the prior art, the utility model can achieve at least one of the following beneficial effects:

[0015] (1) The visual ring saw handle of this embodiment provides a palm area, a thumb area and an index finger area on the operating part, so that the hand can fit with the thumb, index finger and palm respectively in a natural state, which is not easy to make the fingers tired and injured. It is convenient to use force, easy to control, and increases the comfort of the hand.

[0016] (2) The visual trepanation handle of this embodiment reduces the force of pressure exerted by fingers on the trepanation handle by providing a flat palm area, making it less likely for fingers to feel fatigued.

[0017] (3) The visual trephine handle of this embodiment can make the thumb and index finger bend naturally by providing the first groove and the second groove, thereby increasing the fatigue resistance of the hand.

[0018] (4) The visual trephine handle of this embodiment achieves the effect that the hand can apply rotational force to the handle in a natural state by providing the first rotating part and the second rotating part.

[0019] (5) The visual trephine handle of this embodiment can prevent the palm from sliding on the palm area by providing an anti-slip portion, so that the grip of the trephine handle is more stable during circumcision, and the excision process is more controllable and accurate.

[0020] (6) The visual trephine handle of this embodiment, by providing a connecting portion, can be disassembled and assembled as an electric or manual handle according to the needs during the operation, so as to improve the efficiency and quality of foraminal shaping and reduce the workload of the doctor.

[0021] (7) The visual ring saw handle of this embodiment has a receiving cavity at the connecting portion, so that the traditional visual ring saw also has a handle that matches the ergonomic curved surface of the palm surface, thereby avoiding damage to the fingers and base of the thumb caused by the traditional handle.

[0022] (8) The visual ring saw of this embodiment does not need to be disassembled and assembled, and at the same time has the above-mentioned beneficial effects.

[0023] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0025] Figure 1 It is a structural schematic diagram of a visual trephine handle of specific embodiment 1;

[0026] Figure 2 It is a schematic diagram of the connection structure of the visual trephine handle of specific embodiment 1;

[0027] Figure 3 It is a schematic structural diagram of the connection portion of the visual trephine handle of specific embodiment 2;

[0028] Figure 4 It is a structural schematic diagram of the visual ring saw of specific embodiment 3.

[0029] Reference numerals:

[0030] 1-mirror hole; 2-connecting part; 21-card slot; 201-accommodating cavity; 3-operating part; 31-thumb area; 311-first recessed part; 3111-first rotating part; 32-index finger area; 321-second recessed part; 3211-second rotating part; 33-palm area; 331-anti-slip part;

[0031] 101-handle; 102-saw bar; 103-saw teeth. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0033] Example 1

[0034] A specific embodiment of the utility model is as follows Figure 1 , Figure 2 As shown, the visual trephine handle provided by the utility model comprises a mirror hole 1, a connecting portion 2 and an operating portion 3. The mirror hole 1 is a through hole that runs through both sides of the handle, and is used to insert a spinal endoscope to realize the operation of the visual trephine under the microscope; the connecting portion 2 is located on one side of the handle, and is used to be fixedly connected with the saw rod connecting end of the visual trephine; the other side of the handle is the operating portion 3, and when in use, the operating portion 3 is in contact with the palm surface, and the doctor's hand operates the visual trephine under the spinal endoscope by holding the operating portion 3, and completes the foramina shaping after the spine is cut. The visual trephine handle of this embodiment can be disassembled and assembled with the saw rod of the trephine, and the electric or manual handle can be selected and disassembled according to the needs during the operation to improve the efficiency and quality of foramina shaping, while reducing the doctor's workload.

[0035] like Figure 1 As shown, the operating portion 3 of this embodiment includes a thumb area 31, an index finger area 32 and a palm area 33; the palm area 33 is used to place the palm so that the palm can press the ring saw during circumcision; the surfaces of the thumb area 31 and the index finger area 32 are smooth curved surfaces, which can fit with the surfaces of the thumb and the index finger respectively; the thumb area 31 and the index finger area 32 both include a fingertip section and a finger root section, the mirror hole 1 is located between the two finger root sections, and the palm area 33 is connected to the ends of the two finger root sections.

[0036] When performing circumcision, the doctor holds the operating part 3, the thumb and the index finger are naturally bent, the palm and the surface of the operating part 3 are completely fitted, and the mirror hole 1 is located at the base of the thumb. Since the surface of the operating part 3 matches the ergonomic curved surface of the palm surface, the doctor does not need to hold the ring saw handle hard when holding the operating part 3 to perform circumcision, thereby avoiding damage to the fingers and base of the thumb caused by the handle. The visual ring saw handle of this embodiment is particularly suitable for reciprocating rotation ring cutting at an angle of 20 degrees.

[0037] Furthermore, the thumb area 31 includes a first recessed portion 311, the surface of the first recessed portion 311 is a smooth curved surface that fits the surface of the thumb, and the first recessed portion 311 is provided with a first rotating portion 3111; the index finger area 32 includes a second recessed portion, the surface of the second recessed portion 321 is a smooth curved surface that fits the surface of the index finger, and the second recessed portion 321 is provided with a second rotating portion 3211; the first rotating portion 3111 and the second rotating portion 3211 are respectively two side walls of the first recessed portion 311 and the second recessed portion 321 close to the mirror hole 1, and the thumb and index finger can respectively apply thrust to the first rotating portion 3111 and the second rotating portion 3211 to make the handle rotate back and forth.

[0038] Specifically, when the hand operates the handle, the palm fits with the surface of the operating part 3, the thumb and the index finger are respectively located in the first recessed part 311 and the second recessed part 321, and fit with the surfaces of the first recessed part 311 and the second recessed part 321 in a naturally stretched state. Since the first recessed part 311 and the second recessed part 321 both have side walls close to the mirror hole 1, the sides opposite to the thumb and the index finger fit with the two side walls, respectively, thereby forming the first rotating part 3111 and the second rotating part 3211. When it is necessary to rotate the handle, the thumb or the index finger applies a thrust to the first rotating part 3111 or the second rotating part 3211, respectively, so that the handle drives the ring saw to reciprocate around the axis of the ring saw in the working channel.

[0039] Optionally, the bottoms of the fingertip section and the root section of the first recessed portion 311 and the second recessed portion 321 can be located on a plane, or can be smooth curved surfaces that gradually approach one side of the connecting portion 2 from the root section to the fingertip section and bulge out on both sides, so that when the palm fits the operating portion 3, the thumb and index finger can be in a naturally bent state. When the handle is rotated, while the thumb and index finger apply a thrust to the first rotating portion 3111 or the second rotating portion 3211 on the opposite side, the thumb and index finger can also simultaneously pull the bottom of the grooves of the two fingertip sections to further cooperate with the rotation, and at the same time play a role in stabilizing the grip of the handle and increasing the comfort of the hand.

[0040] Furthermore, anti-slip portions 331 are provided on both sides of the palm area 33 to prevent the palm from sliding on the palm area 33 during pressing and rotating.

[0041] Specifically, the surface of the palm area 33 is a smooth curved surface with raised sides. The two sides of the surface of the palm area 33 are raised to form a smooth arc surface protruding from the surface of the palm area 33. The smooth arc surface can fit with the surface of the palm pressing part. When the hand rotates the handle, the anti-slip part 331 protruding from the surface of the palm area 33 can block the two sides of the palm pressing part, thereby preventing the palm from sliding on the palm area 33, making the grip of the ring saw handle more stable during circumcision, and the resection process more controllable and precise.

[0042] Optionally, the anti-slip portion 331 may also be medical silica gel or medical rubber fixed on both sides of the surface of the palm area 33, which can not only prevent the palm from slipping, but also protect the palm.

[0043] like Figure 2 As shown, further, the connecting portion 2 includes a slot 21, and the inner diameter of the slot 21 matches the outer diameter of the end of the saw bar.

[0044] Specifically, the saw bar of a universal detachable ring saw will be provided with a protrusion or polygonal structure for connection at the other end of the saw teeth. The connecting portion 2 of this embodiment can fix the radial position of the saw bar of the ring saw relative to the handle by providing a slot 21 that matches the outer diameter of the end of the saw bar, so that the saw bar can rotate synchronously with the handle to realize the rotation, pressure and circular cutting function of the ring saw.

[0045] In order to fix the axial position of the saw bar of the ring saw relative to the handle, the connecting part 2 is also provided with a screw hole connected to the slot 21. The connecting part 2 is fixedly connected to the end of the saw bar by screws, so that a firm connection is achieved between the saw bar of the ring saw and the handle to ensure the safety and reliability of the ring cutting process.

[0046] Optionally, the connecting part 2 can also fix the axial position of the saw rod by setting a quick connector, which includes a clamping cam or other locking device. When the joint of the saw rod is inserted into the quick connector of the connecting part 2, the joint of the saw rod can be locked on the quick connector by rotating the handle of the clamping cam. This is convenient and easy to operate, saving time occupied by disassembly and assembly.

[0047] Example 2

[0048] The difference between this embodiment and embodiment 1 is that the connecting portion 2 is used for fixedly connecting the handle of other visual trephine saws.

[0049] like Figure 3 As shown, specifically, conventional intervertebral endoscopic foraminal ring saws have several standard types of handles, commonly used ones include a cross handle, a straight handle and a three-sided handle, and the handles are all made of medical stainless steel. In order to increase the versatility of medical equipment, this embodiment provides a receiving cavity 201 at the connecting portion 2, and the receiving cavity 201 matches the outer wall of the handle of the visual ring saw, so that the handle of this embodiment can be fixedly installed on the outside of the commonly used intervertebral endoscopic foraminal ring saw handle, so that the conventional visual ring saw also has a handle that matches the ergonomic curved surface of the palm surface, avoiding damage to the fingers and the base of the thumb caused by the conventional handle.

[0050] It should be noted that in order to ensure the firmness of the connection between the handle of this embodiment and the traditional handle, the handles may be fixed by adopting a fixing solution in the prior art.

[0051] Example 3

[0052] like Figure 4 As shown, this embodiment provides a visual trephine for spinal endoscopy. The visual trephine is integrally formed and has the visual trephine handle of embodiment 1.

[0053] The visual trephine saw of this embodiment includes a handle 101 , a saw bar 102 and saw teeth 103 .

[0054] Preferably, the handle 101 has a length of 12 cm to 20 cm, a width of 8 cm to 15 cm, and a height of 3 cm to 5 cm.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A visual trepanning handle, characterized in that: It includes a mirror hole, a connecting part and an operating part; The mirror hole is a through hole that runs through both sides of the handle and is used to insert a spinal endoscope; The connecting portion is located on one side of the handle and is used to fix the saw rod of the visual ring saw; The operating part is located on the other side of the handle, and is used for holding and operating after being in contact with the palm; The operating part includes a palm area, a thumb area and an index finger area; The thumb area and the index finger area both include a fingertip segment and a finger root segment, the mirror hole is located between the two finger root segments, and the palm area is connected to the ends of the two finger root segments; The thumb area includes a first concave portion, the surface of the first concave portion is a smooth curved surface that fits the surface of the thumb, and the first concave portion is provided with a first rotating portion; The index finger area includes a second recessed portion, the surface of the second recessed portion is a smooth curved surface that fits the surface of the index finger, and the second recessed portion is provided with a second rotating portion; The first rotating part and the second rotating part are respectively two side walls of the first recessed part and the second recessed part close to the mirror hole, and the thumb and index finger can respectively apply thrust to the first rotating part and the second rotating part to make the handle reciprocate.

2. The visual trephine handle according to claim 1, characterized in that: Anti-skid parts are arranged on both sides of the palm area to prevent the palm from sliding on the palm area when pressing and rotating.

3. The visual trephine handle according to claim 2, characterized in that: The anti-slip portion is a raised smooth curved surface.

4. The visual trephine handle according to claim 2, characterized in that: The anti-slip part is medical silica gel or medical rubber.

5. The visual trepanning saw handle according to claim 2, characterized in that: The connecting portion comprises a slot, the inner diameter of which matches the outer diameter of the end of the saw bar.

6. The visual trephine handle according to claim 5, characterized in that: The connecting part is also provided with a screw hole communicated with the clamping slot, and the connecting part is fixedly connected to the end of the saw rod by means of screws.

7. The visual trephine handle according to claim 5, characterized in that: The connecting portion further comprises a quick connector, and the quick connector comprises a clamping cam.

8. The visual trephine handle according to claim 1, characterized in that: The connecting part is used for fixing and connecting the handle of a standard visual trepanning saw, including a straight handle or a cross handle.

9. The visual trephine handle according to claim 8, characterized in that: The connecting portion has an accommodating cavity, and the accommodating cavity matches the outer wall of the handle of a standard visual trepanning saw.

10. A visual trepanning saw, characterized in that: A visual ring saw handle according to any one of claims 1 to 9, wherein the handle is integrally formed with the saw bar.

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