TWI544893B - A crush operation with quick release function - Google Patents

Description

Craniotomy tool with quick release function

The invention relates to a craniotomy tool with a quick release function, in particular to an innovative designer who can quickly change a tool to reduce the operation time.

According to the basic craniotomy procedure, there are two steps: drilling and cutting. In the current surgical equipment, the above two steps need to be performed with their own exclusive instruments, that is, the physician needs to change the tool during the craniotomy, using It is less efficient. In addition, during the drilling and cutting process, if a broken knife occurs, or if the drill needs to be replaced in response to different surgical needs, the operation of replacing the drill will also increase the operation time, so if the cutter has a quick release function, Can effectively reduce the operation time. The following review of currently available and developing craniotomy tools, however, whether it is a commercially available craniotomy tool or a craniotomy tool design that is still under development, there is much room for improvement. First of all, the current craniotomy tools only have one of the functions of drilling or cutting, which is more convenient in the process of craniotomy. Furthermore, the existing craniotomy tools do not have the function of quickly disassembling the drill bit, and it is more troublesome if the drill bit needs to be replaced.

As shown in Fig. 1, it is the patent of the Taiwan Patent No. M277538, "Quick-Removing Cutter Head of Magnetic Drilling Machine". This patent transmits torque spring (6), fastener (5), and shrapnel (3). And the geometry of the knife (1) to design the quick release function, the action mode is as follows: When installing the tool (8), turn the collar to make the guide groove (7) corresponding to the fastener (5), so that the card firmware ( 5) Retracted into the guide pocket (7) by the elastic force of the spring piece (3), then the cutter (8) can be inserted into the knife barrel (1), and after the knife barrel (1) is released, the knife barrel (1) After the return torque of the torsion spring (6) returns to the original position, the inner wall of the knife barrel (1) is pushed against the fastener (5) to extend the perforation (2). And snap into the slot (4) of the tool (8), and fix the tool (8) in the tool holder (1). Conversely, the same is true when removing the tool (8). However, the patented cutter (1) can only hold a single diameter tool (8). It is inconvenient to replace the cutters of different diameters (8). In addition, if the cutter (1) is used, the cutter is used. For the tool (8), the tool (8) must have a card slot (4) to be clamped by the clamp.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation of the above objectives, the present invention has finally become practical. Therefore, in view of the problems existing in the above-mentioned conventional structure, how to develop an innovative structure that is more ideal and practical, and to use the eagerly awaited by consumers, is also the goal and direction of the relevant industry to strive to develop breakthroughs.

The main object of the present invention is to provide a craniotomy knife with a quick release function; the problem to be solved is that it is inconvenient for a conventional tool to replace a drill of different diameters, and if To clamp the drill with the aforementioned cutter, the cutter must have a slot to be improved by the clamp clamping problem; and the technical features of the problem are mainly solved by: an outer sleeve An upper top baffle and a lower top baffle are disposed on the inner layer of the outer sleeve, and a first power source switch is embedded in a predetermined position inside the upper top baffle, and a predetermined position is embedded in the lower top baffle a second power source switch, a first switch portion is disposed at a bottom of the first power source switch, and a second switch portion is disposed at a top of the second power source switch, the first switch portion corresponding to an upper moving plate, and the second The switch portion is corresponding to the moving flat plate, and the upper moving plate and the lower moving plate are oppositely disposed with at least one tension spring, so that the two ends of the tension spring are respectively fixed to the upper moving plate and the lower moving plate, and the lower portion mobile Predetermined positions of the bottom plate has at least three downwardly extending hook fastener, each of the fastener system is provided with a bottom hook portion, the hook portion inside each provided with an elastic body; a drive source provided in the train The upper end of the outer sleeve; a clamping member in the form of a circular cylinder and pivoted inside the outer sleeve, the top end of the clamping member is provided with a driving fixing portion, and the bottom central groove is provided with a tool positioning a groove, the cutter positioning groove can directly position a plurality of different sized tools, and the circumferential side of the clamping member is inclined with at least three clamping holes at a position corresponding to the tool positioning groove, so that the clamping hole is connected to the cutter Positioning the groove, and the outer circumference side of the upper portion of the clamping member is provided with an upper sleeve, and the lower end of the upper sleeve is provided with a sleeve which can be displaced relative to the upper sleeve by a predetermined section, the upper sleeve and the sleeve A torsion spring is disposed between the lower sleeve, the torsion spring is provided with a first fixed end and a second fixed end, wherein the first fixed end is disposed at a predetermined position of the clamping member, and the second fixed end is Provided in a predetermined position inside the lower sleeve, wherein each of the clamping perforations of the clamping member is respectively disposed to assemble a clamping jaw, and the clamping jaw is provided with a clamping portion corresponding to the position of the cutter positioning groove, and the clamping portion a predetermined position of the outer surface of the claw is provided with an outer screw segment, and the lower sleeve phase The outer screw segment is provided with an inner screw segment, so that the inner screw segment can be screwed to the outer screw segment, and the jaw is longitudinally inclined and displaced by screwing to adjust the different outer diameters of the clamp fixing position. a ratchet wheel is fixed at a central position of the top end of the clamping member, and a plurality of ratchet teeth are arranged around the circumference of the ratchet wheel, and one end face of each of the ratchet teeth forms a blocking surface, and the upper sleeve corresponds to the periphery of the ratchet wheel The peripheral side is provided with a plurality of pawls, one end of each of the pawls is provided with a spine end face, and the other end of the pawl is provided with an elastic limiting member, wherein the tightening direction of the ratchet and the pawl is exactly tightened with the elastic force of the torsion spring The compression direction is the same. When the pawl of the upper sleeve is displaced upwardly away from the engagement state of the ratchet, the elastic compression of the torsion spring releases the rotation, so that the upper sleeve drives the lower sleeve to rotate. The steering of the sleeve is just equal to the inner screw segment unscrewing the outer threaded portion of the jaw, thereby causing each of the clamping portions of the jaw to relatively loose the clamping position of the cutter; thereby creating a unique design and making this The invention uses the quick release mechanism to quickly replace the drill bit when the knife is broken, thereby saving In the meantime, it will take a lot of time to avoid changing the tool in the state of the broken knife. In addition, the clamping method of the invention is the same as the conventional clamping tool, and the thread is clamped between the clamping jaw and the sleeve to perform the clamping action. Therefore, it can be clamped For tools of the same diameter and without the need for a card slot for clamping on the tool, any conventional conventional tool can be used, thereby making the invention practical and practical for use.

[study part]

1‧‧‧knife

2‧‧‧Perforation

3‧‧‧Shrap

4‧‧‧ card slot

5‧‧‧ card firmware

6‧‧‧Torque spring

7‧‧‧Guide

8‧‧‧Tools

[part of the invention]

10‧‧‧Outer sleeve

11‧‧‧Upper top baffle

12‧‧‧Under the top baffle

13‧‧‧Upper mobile tablet

14‧‧‧Mobile tablet

15‧‧‧First power source switch

151‧‧‧ first switch

16‧‧‧Second power source switch

161‧‧‧Second switch

17‧‧‧ stretching spring

171‧‧‧Links

20‧‧‧ drive source

21‧‧‧Drive motor

22‧‧‧First reduction gear

23‧‧‧Second reduction gear

30‧‧‧Upper sleeve

31‧‧‧Fixed parts

35‧‧‧ Lower sleeve

36‧‧‧Neuro segment

37‧‧‧Long slot

40‧‧‧ratchet

41‧‧‧ ratchet

42‧‧ ‧ facing

43‧‧‧ pawl

44‧‧‧thorn end face

45‧‧‧Flexible limiter

50‧‧‧Torque spring

51‧‧‧First fixed end

52‧‧‧Second fixed end

60‧‧‧claw

61‧‧‧outer screw

62‧‧‧Clamping Department

70‧‧‧ hook fasteners

71‧‧‧ Elastomers

72‧‧‧ hooking

80‧‧‧Tools

90‧‧‧Clamping parts

91‧‧‧Drive fixing department

92‧‧‧Tool positioning slot

93‧‧‧Clamping perforation

Fig. 1 is a cross-sectional view showing a conventional "drilling chuck of a magnetic drill".

Fig. 2 is a perspective partial cross-sectional view showing a craniotomy tool with a quick release function according to the present invention.

Fig. 3 is a rear perspective view of the craniotomy tool with the quick release function of the present invention.

Fig. 4 is a cross-sectional view showing the operation of the craniotomy tool with a quick release function according to the present invention, which shows the state of not being quickly disassembled.

Fig. 5 is a cross-sectional view of the craniotomy tool with quick-release function of the present invention, which shows the state of quick-release.

Fig. 6 is a cross-sectional view showing a gripping member of a craniotomy tool having a quick release function according to the present invention.

Figure 7 is a side view of the clamp of the craniotomy tool with the quick release function of the present invention.

Fig. 8 is a view showing a ratchet and pawl arrangement of a craniotomy tool with a quick release function according to the present invention.

Please refer to FIGS. 2-8, which are preferred embodiments of the craniotomy tool with quick release function of the present invention, but the embodiments are for illustrative purposes only, and are not applicable to the patent application. Limiting; comprising: an outer sleeve (10), the upper sleeve (10) is provided with an upper top baffle (11) and a lower top baffle (12), the upper top baffle (11) A first power source switch (15) is embedded in the internal predetermined position, and a second power source switch (16) is embedded in the lower position of the lower top baffle (12), and the first power source switch is provided with a first bottom. a switch portion (151), a second switch portion (161) is disposed at a top of the second power source switch (16), the first switch portion (151) corresponding to an upper moving plate (13), and the second switch Department (161) corresponds to the mobile tablet (14), the upper The moving plate (13) is provided with at least one tension spring (17) at a position opposite to the lower moving plate (14), so that both ends of the tension spring (17) are respectively fixed to the upper moving plate (13) and the lower portion Moving the flat plate (14), the bottom of the lower moving plate (14) has a predetermined position downwardly extending at least three hooking members (70), and each of the hooking members (70) is provided with a hook portion (72) at the bottom end thereof. Each of the hook portions (72) is internally provided with an elastic body (71); a driving source (20) is disposed at an upper end position of the outer sleeve (10); wherein the driving source (20) comprises a driving motor (21) driving a first reduction gear (22), the first reduction gear (22) is correspondingly engaged with a second reduction gear (23), and the second reduction gear (23) is shaft-mounted on the clamping member (90) the relative position of the top end; a clamping member (90) in the form of a circular cylinder and pivoted inside the outer sleeve (10), the top end of the clamping member (90) is provided with a driving fixing portion (91), the bottom central slot is provided with a tool positioning groove (92), and the tool positioning groove (92) can directly position various tools (80) of different sizes, and the circumferential side of the clamping member (90) is opposite to the cutter The positioning groove (92) is obliquely arranged to The three clamping holes (93) are arranged to communicate the clamping perforation (93) with the tool positioning groove (92), and the outer circumferential side of the upper portion of the clamping member (90) is provided with an upper sleeve (30) The lower end of the upper sleeve (30) is provided with a sleeve (35) which is displaceable relative to the upper sleeve (30) for a predetermined section, and the upper sleeve (30) is disposed between the upper sleeve (30) and the lower sleeve (35) There is a torsion spring (50), the torsion spring (50) is provided with a first fixed end (51) and a second fixed end (52), wherein the first fixed end (51) is fastened to the clamping member (90) a predetermined position, and the second fixed end (52) is disposed at a predetermined position inside the lower sleeve (35), wherein each of the clamping through holes (93) of the clamping member (90) is separately provided A clamping jaw (60) is assembled, the clamping jaw (60) is provided with a clamping portion (62) corresponding to the position of the cutter positioning groove (92), and the outer edge of the outer surface of the clamping jaw (60) is provided with an outer screw segment (61), the lower sleeve (35) is provided with an inner screw portion (36) at a position relative to the outer screw portion (61), so that the inner screw portion (36) can be screwed to the outer screw portion (61). ), the jaw (60) is tilted longitudinally by screwing a tool (80) for adjusting the different outer diameters of the clamp fixing position; wherein the upper sleeve (30) and the lower sleeve (35) are circumferentially disposed with a plurality of fixing members (31), wherein the lower portion The sleeve (35) is provided with a long slot (37) relative to the fixing member (31) slot, so that the upper sleeve (30) can be relatively displaced relative to the lower sleeve (35) by a predetermined segment distance; a ratchet (40), the top end of the clamping member (90) is rotatably sleeved at a central position of the outer diameter of the clamping member (90), and a plurality of ratchets (41) are disposed around the circumference of the ratchet (40). A stop surface (42) is formed on one end surface of each of the ratchet teeth (41), and the upper sleeve (30) is provided with a plurality of pawls (43) on the peripheral side of the outer periphery of the ratchet wheel (40), and each of the pawls (43) One end is provided with a spine end face (44), and the other end of the pawl (43) is provided with an elastic limiting member (45), wherein the ratchet wheel (40) and the pawl (43) are screwed in the same direction as the torsion spring (50) The elastic torsion compression direction is the same, and the pawl (43) of the upper sleeve (30) is displaced upwardly away from the engagement state of the ratchet (40), by the elasticity of the torsion spring (50) The compression releases the rotation, and the upper sleeve (30) drives the lower sleeve (35) to rotate, The lower sleeve (35) is turned by the inner screw segment (36) to loosen the outer screw portion (61) of the jaw (60), thereby causing each of the clamping portions (62) of the clamping jaw (60) Relatively loosening the clamping position of the cutter (80); by the above structure and composition design, the operation of the present invention is explained as follows: due to the first power source switch (15) and the second power source The switch (16) is mounted on the upper half and the lower half of the upper sleeve (30), such a configuration that the upper moving plate (13) and the lower moving plate (14) are touched to the first The power source switch (15) and the second power source switch (16) further activate the power source; and the quick release tool (80) of the present invention functions mainly by the torsion spring (50), the ratchet wheel (40) and the pawl ( 43) The mechanism is part of the quick release mechanism for achieving the function of quickly disassembling the tool (80), and by the upper moving plate (13) and the lower moving plate (14) and the three sets of hooks Composed of a piece (70) by The upper moving plate (13) and the lower moving plate (14) are used to trigger the first power source switch (15) and the second power source switch (16) to activate the driving source (20) for drilling and cutting, The hook fastener (70) and the hook portion (72) can hook the bottom of the skull to adjust the depth of cut.

Then, the mounting and actuating manner of the quick release mechanism of the cutter (80) is that the clamping member (90) is a fixed rod, and the torsion spring (50) is installed between the clamping member (90) and the lower sleeve (35). The pawl (43) is mounted to the upper sleeve (30) and the upper sleeve (30) is co-operating with the lower sleeve (35). When the cutter (80) is installed, the user first rotates the lower sleeve (35) in the screwing direction, and the lower sleeve (35) drives the upper sleeve (30) to be mounted thereon. The ratchet (40) of the sleeve (30) and the pawl (43) actuate the torsion force mounted on the lower sleeve (35) when the lower sleeve (35) is rotated in the screwing direction The spring (50) will generate elastic force in the loosening direction, but due to the limitation of the ratchet (40) and the pawl (43), the lower sleeve (35) cannot be rotated in the loosening direction, so the whole set of tools (80) will be presented. Clamping state; then when the tool (80) needs to be replaced by the tool (80), as long as the upper sleeve (30) is pulled upward, the pawl (43) is not engaged with the ratchet (40) at this time, The upper sleeve (30) drives the lower sleeve (35) to rotate the lower sleeve (35) in the direction of loosening due to the elastic force of the torsion spring (50) to thereby clamp the jaws (60). ) Retreat, and this quick release concept requires only one action and can achieve the function of quick release without any other auxiliary tools.

Therefore, the quick release mechanism of the present invention can quickly replace the drill bit when the knife is broken to save time, and avoid the loss of a lot of time when the tool (80) is replaced in the state of the broken knife, thereby making the invention reach the use. Convenient and practical progress.

By summarizing the above description, the design of the above structure of the present invention can effectively overcome the shortcomings faced by the conventional invention, and further has the above-mentioned numerous advantages and practical values. Therefore, the present invention is an innovative invention and is identical in the same The same or similar product creation or public use is not seen in the technical field, so the invention has met the invention patents regarding "novelty" and "progress" The requirements for sex are to apply in accordance with the law.

10‧‧‧Outer sleeve

11‧‧‧Upper top baffle

12‧‧‧Under the top baffle

13‧‧‧Upper mobile tablet

14‧‧‧Mobile tablet

20‧‧‧ drive source

21‧‧‧Drive motor

22‧‧‧First reduction gear

23‧‧‧Second reduction gear

30‧‧‧Upper sleeve

31‧‧‧Fixed parts

35‧‧‧ Lower sleeve

36‧‧‧Neuro segment

37‧‧‧Long slot

40‧‧‧ratchet

50‧‧‧Torque spring

60‧‧‧claw

61‧‧‧outer screw

62‧‧‧Clamping Department

70‧‧‧ hook fasteners

71‧‧‧ Elastomers

72‧‧‧ hooking

80‧‧‧Tools

90‧‧‧Clamping parts

Claims (3)

A craniotomy surgical tool with a quick release function includes: an outer sleeve, an upper top baffle and a top baffle are disposed on an inner layer of the outer sleeve, and a predetermined position is embedded in the upper top baffle a power source switch, and a second power source switch is embedded in a predetermined position inside the lower top baffle; a first switch portion is disposed at a bottom of the first power source switch, and a second switch is disposed at a top of the second power source switch The first switch portion corresponds to an upper moving plate, and the second switch portion corresponds to a moving plate, and the upper moving plate and the lower moving plate are oppositely disposed with at least one tension spring, so that the tension spring The two ends are respectively fixed on the upper moving plate and the lower moving plate, and the bottom of the lower moving plate has a predetermined position downwardly extending at least three hooking members, and each of the hooking members is provided with a hook portion at the bottom end thereof. An elastic body is disposed inside the hook portion; a driving source is disposed at an upper end position of the outer sleeve; and a clamping member is formed in a circular cylindrical shape and is pivotally disposed inside the outer sleeve The top of the holder is provided with a driving fixing portion, and the bottom portion The central slot is provided with a cutter positioning groove, and the cutter positioning groove can directly position various cutters of different sizes, and the peripheral side of the clamp member is inclined with at least three clamping perforations relative to the position of the cutter positioning slot, so that the clamp The perforation is connected to the cutter positioning groove, and the outer circumference of the upper portion of the clamping member is provided with an upper sleeve, and the lower end of the upper sleeve is provided with a sleeve which can be displaced relative to the upper sleeve by a predetermined section. a torsion spring is disposed between the upper sleeve and the lower sleeve, the torsion spring is provided with a first fixed end and a second fixed end, wherein the first fixed end is disposed at a predetermined position of the clamping member, and The second fixed end is disposed at a predetermined position inside the lower sleeve, wherein each of the clamping perforations of the clamping member is respectively disposed to assemble a clamping jaw, and the clamping jaw is provided with a clip corresponding to the position of the cutter positioning groove a portion of the outer edge of the jaw is provided with an outer screw portion, and the lower sleeve is provided with an inner screw portion at a position corresponding to the outer screw portion, so that the inner screw portion can be screwed to the outer screw portion Adjusting the clamp fixing position by tilting the jaw longitudinally by screwing a cutter having the same outer diameter; a ratchet wheel is rotatably sleeved at a top end of the clamp member at a center of the outer diameter of the clamp member, and a plurality of ratchet teeth are disposed around the circumference of the ratchet wheel The end surface is formed with a blocking surface, and the upper sleeve is provided with a plurality of pawls on the peripheral side of the ratchet wheel, and one end of each of the pawls is provided with a spine end, and the other end of the pawl is provided with an elastic limiting member, wherein the ratchet and the ratchet The tightening direction of the pawl is exactly the same as the elastic torsion compression direction of the torsion spring. When the pawl of the upper sleeve is displaced upward and disengaged from the engagement state of the ratchet, the elastic compression of the torsion spring releases the rotation. And make the upper sleeve Rotating the lower sleeve, the steering of the lower sleeve is just equal to the inner screw segment loosening the outer screw segment of the jaw, thereby causing each clamping portion of the jaw to relatively loose the clamping position of the cutter By. The craniotomy tool according to claim 1, wherein the driving source comprises a driving motor to drive a first reduction gear, and the first reduction gear is correspondingly engaged with a second reduction gear, The second reduction gear shaft is disposed at a position opposite to the top end of the clamp. The craniotomy tool according to claim 1, wherein the upper sleeve and the lower sleeve are circumferentially disposed with a plurality of fixing members, wherein the lower sleeve is provided with respect to the fixing member groove. The slot is such that the upper sleeve is relatively displaceable relative to the lower sleeve by a predetermined segment distance.