TWI580391B - Fastening structure of electronic surgical device - Google Patents

Description

Fixed structure of electronic surgical device

The invention relates to a fixing structure of an electronic surgical device, in particular to a fixing structure of a metal tube capable of fixing an electronic surgical device.

Traditionally, the operation of the human body is performed by a scalpel. However, it has been clinically found that the use of a scalpel is likely to cause a large amount of bleeding in the wound at the surgical site and a poor healing rate. The use of electric burning to cut the affected part can not only effectively reduce the amount of bleeding in the wound, but also can change the function of cutting the wound to provide the function of blood clotting by appropriately controlling the output current. Therefore, using electric burning instead Surgical scalpels for surgery have become more common.

A conventional electronic surgical device may have a metal tube body whose head portion may have a different structure depending on the function, and may be, for example, needle-shaped or pincer-shaped. However, regardless of the function of the electronic surgical device, the metal tube body is often combined with the outer casing of the electronic surgical device through a complicated assembly, resulting in assembly is not easy. In addition, since it is necessary to use a large number of metal components for assembly and fixation, the entire electronic surgical device is difficult to be lightweight, and the cost is also difficult to reduce. Furthermore, the metal tube of the conventional electronic surgical device cannot be easily rotated with the needs of medical personnel, resulting in considerable inconvenience to the medical personnel performing the electrocautery operation.

In view of the above, the present invention provides a fixed structure of an electronic surgical device. The electronic surgical device includes a metal tube. The fixed structure of the electronic surgical device includes a body, a fixed sleeve and a nut. The body comprises a connecting end and a channel, and the metal tube can penetrate into the channel from the connecting end, and the connecting end is provided with a radial groove. The fixing sleeve is sleeved outside the metal tube, and one end of the fixing sleeve is provided with a deformable portion, and the other end of the fixing sleeve is provided with a hook and an external thread, and the hook is engaged with the radial groove of the body, and is deformable The portion includes a plurality of axial ring plates, and the plurality of axial ring plates are spaced apart and annularly arranged and extend along the axial direction of the fixed sleeve. The nut has a first section and a second section, the first section has an internal thread matched to one of the external threads, one end of the second section is connected to the first section, and the inner diameter of the second section is from the first section The end of the second section connected to the first section tapers toward the other end of the second section, the length of the first section being shorter than the length of the fixed sleeve, and the second section when the internal thread is engaged with the external thread The deformable portion is compressed to hold the metal tube.

One of the concepts of the present invention is that in the fixed structure of the electronic surgical device, the length of the plurality of axial ring plates is between a quarter and a half of the length of the fixed sleeve.

One of the concepts of the present invention is that in the fixed structure of the electronic surgical device, the axial length of the internal thread of the nut is equal to the axial length of the first segment, and the axial length of the internal thread is greater than the fixed sleeve. The axial length of the external thread.

One of the concepts of the present invention is that in the fixed structure of the electronic surgical device, the radial groove is disposed on the inner surface of the connecting end to be connected to the channel.

One of the concepts of the present invention is that in the fixed structure of the above electronic surgical device, the radial groove is disposed on the outer surface of the connecting end.

Another concept of the present invention is a fixed structure of an electronic surgical device. The electronic surgical device includes a metal tube. The fixed structure of the electronic surgical device includes a body, a fixing sleeve and a nut. The body comprises a connecting end and a channel, and the metal tube can be inserted into the channel from the connecting end, and the connecting end is provided with a hook. The fixing sleeve is sleeved outside the metal tube, and one end of the fixing sleeve is provided with a deformable portion, and the other end of the fixing sleeve is provided with a radial groove and an external thread, and the hook of the body is engaged with the fixing sleeve The radial groove of the tube, the deformable portion includes a plurality of axial ring plates extending in the axial direction of the fixed sleeve. The nut has a first section and a second section, the first section has an internal thread matched to one of the external threads, one end of the second section is connected to the first section, and the inner diameter of the second section is from the first section The end of the second section connected to the first section tapers towards the other end of the second section. The length of the first section is shorter than the length of the fixed sleeve, and the second section compresses the deformable portion to clamp the metal tube when the internal thread is engaged with the external thread.

One of the concepts of the present invention is that in the fixed structure of the electronic surgical device, the length of the plurality of axial ring plates is between a quarter and a half of the length of the fixed sleeve.

One of the concepts of the present invention is that in the fixed structure of the above electronic surgical device, the length of the internal thread of the nut is equal to the length of the first section, and the length of the internal thread is greater than the length of the external thread of the fixed sleeve.

One of the concepts of the present invention is that in the fixed structure of the above electronic surgical device, the radial groove is disposed on the inner surface of the other end of the fixed sleeve.

One of the concepts of the present invention is that in the fixed structure of the above electronic surgical device, the radial groove is disposed on the outer surface of the other end of the fixed sleeve.

Please refer to FIG. 1 to FIG. 5 , which are respectively an exploded view (1), an exploded view (2), a combined view (1), a combined view (2) and a cross-sectional view of a first embodiment of the present invention, and discloses a first aspect of the present invention. The electronic surgical device of the present embodiment comprises a metal tube 14 . The fixed structure 1 of the electronic surgical device mainly comprises a body 12 , a fixing sleeve 11 and a nut 13 . The body 12 is composed of a sleeve 12a and a grip portion 12b, and the sleeve 12a and the grip portion 12b are integrally formed, which will be described in detail below.

The sleeve 12a of the body 12 includes a connecting end 121 and a passage 122. The metal tube 14 can be inserted into the passage 122, and the connecting end 121 is provided with a hook 121a. The connecting end 121 of the sleeve 12a has a substantially cylindrical shape, and the hook 121a protrudes from the outer surface of the connecting end 121 toward the center of the connecting end 121. The appearance of the sleeve 12a in the drawings is merely an exemplification, and the body of the non-limiting electronic surgical device necessarily includes a cylindrical member. The sleeve 12a of the present embodiment is characterized in that it must have a passage 122 for accommodating the metal tube 14, and the appearance The contours can vary depending on the electronic surgical device.

The fixing sleeve 11 is sleeved outside the metal tube 14. One end of the fixing sleeve 11 is provided with a deformable portion 111. The other end of the fixing sleeve 11 is provided with a radial groove 112 and an external thread 113. The hook 121a of the sleeve 12a of the body 12 is engaged with the radial groove 112 of the fixed sleeve 11. The deformable portion 111 includes a plurality of axial ring plates 111a, and the plurality of axial ring plates 111a are along the axial direction of the fixed sleeve 11. extend. The axial ring plate 111a is formed by providing slits extending in the axial direction and spaced apart at the deformable portion 111. The fixing sleeve 11 of the embodiment can be made of a plastic material, which not only has the characteristics of being easy to manufacture, but also achieves the effects of light weight and cost reduction.

Referring to FIG. 5, the nut 13 has a first section 131 and a second section 132. The first section 131 has an internal thread 131a matching one of the external threads 113, and one end of the second section 132 is connected to The inner diameter of the first section 131, the second section 132 is tapered from the end of the second section 132 connected to the first section 131 toward the other end of the second section 132. The length L1 of the first section 131 is shorter than the length K1 of the fixing sleeve 11, so that when the internal thread 131a is engaged with the external thread 113, the second section 132 compresses the plurality of axial ring plates 111a of the deformable portion 111 while being clamped. Hold the metal tube 14.

In one aspect of the embodiment, the length of the plurality of axial ring plates 111a is between one quarter and one half of the length of the fixed sleeve 11. If the length of the axial ring plate 111a is shorter than a quarter of the length of the fixed sleeve 11, the clamping force will not be sufficient to securely hold the metal tube 14. If the length of the axial ring plate 111a is greater than one-half of the length of the fixed sleeve 11, the axial ring plate 111a is easily deformed, and the axial ring plate 111a remains with the metal tube 14 when the nut 13 is loosened. contact.

Referring to FIG. 5, in an aspect of the embodiment, the axial length of the internal thread 131a of the nut 13 is equal to the axial length L1 of the first section 131, and the axial direction of the internal thread 131a of the nut 13 The length is greater than the axial length M1 of the external thread 113 of the fixed sleeve 11.

In this embodiment, the radial groove 112 is disposed on the outer surface of the connecting end 121, and in another aspect of the embodiment, the radial groove 112 is disposed on the inner surface of the connecting end 121. The channels 122 are connected such that the hooks 121a of the sleeve 12a must be inserted into the channels 122 to engage the radial grooves 112.

Please refer to FIG. 6 to FIG. 10 , which are respectively an exploded view ( 1 ), an exploded view ( 2 ), a combined view ( 1 ), a combined view ( 2 ) and a cross-sectional view of a second embodiment of the present invention, and discloses a first aspect of the present invention. The fixed structure 2 of the electronic surgical device of the second embodiment, the electronic surgical device to which the embodiment is applied includes a metal tube 14 , and the fixed structure 2 of the electronic surgical device mainly comprises a body 22 , a fixing sleeve 21 and a nut 13 . The body 22 is composed of a sleeve 22a and a grip portion 22b, and the sleeve 12a and the grip portion 12b are integrally formed, which will be described in detail below.

The sleeve 22a of the body 22 includes a connecting end 221 and a passage 222. The metal tube 14 can penetrate into the passage 222 from the connecting end 221, and the connecting end 221 is provided with a radial groove 221a. The connecting end 221 of the sleeve 22a has a substantially cylindrical shape, and the radial groove 221a is recessed from the outer surface of the connecting end 221 toward the center of the connecting end 221 . The appearance of the sleeve 22a of the body 22 in the drawings is merely an illustration, and the body of the non-limiting electronic surgical device necessarily includes a cylindrical member. The sleeve 22a of the present embodiment is characterized in that it must have a passage for accommodating the metal tube 14. 222, the outline of the appearance may vary depending on the electronic surgical device.

The fixing sleeve 21 is sleeved on the outside of the metal tube 14. One end of the fixing sleeve 21 is provided with a deformable portion 211. The other end of the fixing sleeve 21 is provided with a hook 212 and an external thread 213. The hook 212 is engaged with the body. A radial groove 221 of the sleeve 22a of 22. The deformable portion 211 includes a plurality of axial ring plates 211a spaced apart and annularly arranged and extending in the axial direction of the fixed sleeve 21. The axial ring plate 211a is formed by providing slits that are axially extended and spaced apart in the deformable portion 211. The fixing sleeve 21 of the embodiment can be made of a plastic material, which not only has the characteristics of being easy to manufacture, but also achieves the effects of weight reduction and cost reduction.

Referring to FIG. 10, the nut 13 has a first section 131 and a second section 132. The first section 131 has an internal thread 131a matching the external thread 213 of the fixing sleeve 21, and the second section 132 One end is connected to the first section 131, and the inner diameter of the second section 132 is tapered from the end of the second section 132 connected to the first section 131 toward the other end of the second section 132. The length L1 of the first section 131 is shorter than the length K2 of the fixing sleeve 21, and the second section 132 compresses the plurality of deformable portions 211 when the internal thread 131a of the nut 13 is engaged with the external thread 213 of the fixing sleeve 21. The metal tube 14 is sandwiched by the axial ring plate 211a.

In one aspect of the embodiment, the length of the plurality of axial ring plates 211a is between one quarter and one half of the length of the fixed sleeve 21. If the length of the axial ring plate 211a is shorter than a quarter of the length of the fixed sleeve 21, the clamping force will not be sufficient to securely fix the metal tube 14. If the length of the axial ring plate 211a is greater than one-half of the length of the fixed sleeve 21, the axial ring plate 211a is easily deformed, and the axial ring plate 211a remains with the metal tube 14 when the nut 13 is loosened. contact.

Referring to FIG. 10, in an aspect of the embodiment, the axial length of the internal thread 131a of the nut 13 is equal to the axial length L1 of the first section 131, and the axial length of the internal thread 131a is greater than the fixing sleeve. The axial length M1 of the external thread 213 of the tube 21.

In this embodiment, the radial groove 221 is disposed on the outer surface of the connecting end 221 of the sleeve 22a of the body 22, and in another aspect of the embodiment, the radial groove 221 is disposed on the body. The inner surface of the connecting end of the sleeve 22a of 22 is connected to the passage 222, so that the hook 212 of the fixing sleeve 21 must be inserted into the passage 222 of the sleeve 22a to be engaged with the radial groove 221, also That is to say, the hook 212 must protrude from the center of the connecting end 221 toward the outer surface of the connecting end 221.

While the present invention has been described above in the foregoing embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

1‧‧‧Fixed surgical device fixed structure
11‧‧‧Fixed casing
111‧‧‧Deformable Department
111a‧‧‧Axial ring plate
112‧‧‧ Radial grooves
113‧‧‧ external thread
12‧‧‧Ontology
12a‧‧‧Sleeve
12b‧‧‧ grip
121‧‧‧Connecting end
121a‧‧‧ card hook
122‧‧‧ channel
13‧‧‧ Nuts
131‧‧‧First section
131a‧‧‧ internal thread
132‧‧‧second section
14‧‧‧Metal tube
2‧‧‧Fixed surgical device fixed structure
21‧‧‧Fixed casing
211‧‧‧Deformable Department
211a‧‧‧Axial ring plate
212‧‧‧ hook
213‧‧‧ external thread
22‧‧‧Ontology
22a‧‧‧Sleeve
22b‧‧‧ grip
221‧‧‧Connected end
221a‧‧‧radial grooves
222‧‧‧ channel

Fig. 1 is an exploded view (1) of the first embodiment of the present invention. Fig. 2 is an exploded view (2) of the first embodiment of the present invention. Figure 3 is a combination diagram (1) of the first embodiment of the present invention. Figure 4 is a combination diagram (2) of the first embodiment of the present invention. Figure 5 is a schematic cross-sectional view showing a first embodiment of the present invention. Fig. 6 is an exploded view (1) of the second embodiment of the present invention. Figure 7 is an exploded view (2) of the second embodiment of the present invention. Figure 8 is a combination diagram (1) of a second embodiment of the present invention. Figure 9 is a combination diagram (2) of the second embodiment of the present invention. Figure 10 is a schematic cross-sectional view showing a second embodiment of the present invention.

1‧‧‧Fixed surgical device fixed structure

11‧‧‧Fixed casing

111‧‧‧Deformable Department

111a‧‧‧Axial ring plate

112‧‧‧ Radial grooves

113‧‧‧ external thread

12a‧‧‧Sleeve

121‧‧‧Connecting end

121a‧‧‧ card hook

13‧‧‧ Nuts

131a‧‧‧ internal thread

14‧‧‧Metal tube

Claims (8)

A fixed structure of an electronic surgical device, the electronic surgical device comprising a metal tube, the fixed structure of the electronic surgical device comprising: a body, comprising a connecting end and a channel, the metal tube can penetrate into the channel from the connecting end The connecting end is provided with a radial groove; a fixing sleeve is sleeved outside the metal tube, and one end of the fixing sleeve is provided with a deformable portion, and the other end of the fixing sleeve is provided with a hook and an outer portion Threaded, the hook is engaged with a radial groove of the body, the deformable portion includes a plurality of axial ring plates spaced apart and annularly arranged and extending along an axial direction of the fixing sleeve, wherein The length of the plurality of axial ring plates is between a quarter and a half of the length of the fixed sleeve; and a nut having a first section and a second section, the first a section having an internal thread adapted to one of the external threads, one end of the second section being coupled to the first section, the inner diameter of the second section being coupled to the first section from the second section The end tapers toward the other end of the second section, the first section Fixed length shorter than the length of the sleeve, so that the internal thread and the external thread timely locking the second section to compress the deformable portion to sandwich the metal tube. The fixing structure of the electronic surgical device of claim 1, wherein an axial length of the internal thread of the nut is equal to an axial length of the first section, and an axial length of the internal thread is greater than that of the fixed sleeve The axial length of the external thread. The fixing structure of the electronic surgical device according to claim 1 or 2, wherein the radial groove is disposed on an inner surface of the connecting end to be connected to the channel. The fixing structure of the electronic surgical device according to claim 1 or 2, wherein the radial groove is provided on an outer surface of the connecting end. A fixed structure of an electronic surgical device, the electronic surgical device comprising a metal tube, the fixed structure of the electronic surgical device comprising: a body, comprising a connecting end and a channel, the metal tube can be inserted into the channel from the connecting end, The connecting end is provided with a hook; a fixing sleeve is sleeved outside the metal tube, and one end of the fixing sleeve is provided with a deformable portion, and the other end of the fixing sleeve is provided with a radial groove and an outer portion Threaded, the hook of the body is engaged with the radial groove of the fixing sleeve, the deformable portion includes a plurality of axial ring plates extending along the axial direction of the fixing sleeve, wherein the plurality The length of the axial ring plate is between a quarter and a half of the length of the fixed sleeve; and a nut having a first section and a second section, the first zone The segment has an internal thread matching one of the external threads, one end of the second segment is connected to the first segment, and the inner diameter of the second segment is connected to the end of the first segment from the second segment Tapering toward the other end of the second section, the length of the first section Shorter than the length of the fixing sleeve, so that the internal thread and the external thread timely locking the second section to compress the deformable portion to sandwich the metal tube. The fixing structure of the electronic surgical device of claim 5, wherein the length of the internal thread of the nut is equal to the length of the first section, and the length of the internal thread is greater than the length of the external thread of the fixing sleeve. The fixing structure of the electronic surgical device of claim 5 or 6, wherein the radial groove is disposed on an inner surface of the other end of the fixing sleeve. The fixing structure of the electronic surgical device of claim 5 or 6, wherein the radial groove is disposed on an outer surface of the other end of the fixing sleeve.