TW201822730A - Surgical inserter for a medical device - Google Patents

Abstract

A surgical inserter includes a shaft, a lever, a bolt, and a locking mechanism. The shaft includes a shaft body and an engaging head. An end of the lever is adjacent to an inner side of the engaging head. The bolt is mounted on the end of the lever and passes through the engaging head to connect a medical device. The locking mechanism is movably disposed on the other end of the shaft body for selectively locking or releasing angular movement of the lever relative to the shaft body. When the lever is bending relative to the shaft body, the end of the lever pries the bolt, so that the medical device is driven by the bolt to abut against an outer side of the engaging head tightly.

Description

Implant for medical devices

The present invention relates to a surgical tool, and more particularly to an implanter suitable for use in a medical device.

In surgical procedures, surgical tools are often used to connect medical devices (such as implants, implant specimens, or surgical instruments) to assist the user in more flexible operation of the medical device, due to the medical device and surgical tools. The detachment is connected in a detachable manner, so in order to avoid accidental loosening during the surgical operation, it is common to use an auxiliary mechanism to ensure the stability of the medical device and the surgical tool.

The existing auxiliary mechanism is composed of a complicated linkage mechanism, which has many joint joints, small components, deep holes and inner grooves, so the cleaning and sterilization of the surgical tools becomes very difficult, since these components are in each Frequent contact with blood, soft tissue or bone during the operation of the operation, if not thoroughly cleaned and sterilized, will greatly increase the risk of postoperative infection.

Although some surgical tools are designed to be partially disassembled for cleaning, the structure of this design is more complicated and easily damaged, which may not only cause accidents and delays in the surgical procedure, but also complicated cleaning procedures increase the burden on medical personnel and hospitals. Operating costs.

Accordingly, it is an object of the present invention to provide an implanter that can be securely attached to a medical device and that is simple in construction and easy to clean to solve the above problems.

The invention utilizes the rod member to sway the bolt, thereby driving the medical device to abut against the outer side of the joint head; further, the present invention further utilizes the engaging mechanism to limit the angular displacement of the rod member relative to the shaft body to ensure that the medical device is always It is close to the outer side of the joint head, thereby effectively avoiding accidental loosening during the surgical operation, thereby improving operational reliability and surgical precision. In addition, compared with the prior design, the implanter of the present invention has the advantages of simple structure and convenient operation and easy cleaning and sterilization, thereby effectively reducing the burden on medical personnel and reducing the risk of postoperative infection of patients.

Referring to FIG. 1 and FIG. 2, the implanter 1 of the first embodiment of the present invention is used for connecting a medical device 2, and the implanter 1 includes a shaft member 10, a rod member 11, a bolt 12, and a The engaging mechanism 13 has a handle 14 and a plate member 15. The shaft member 10 includes a shaft body 100 and an engaging head portion 101. The joint head portion 101 is disposed at one end of the shaft body 100.

The rod member 11 is movably disposed on the shaft body 100, one end of the rod member 11 is adjacent to one inner side of the joint head portion 101, and the bolt 12 is mounted to the end of the rod member 11 and passes through the joint head portion 101 to connect the medical device 2, the card The engaging mechanism 13 is movably disposed at the other end of the shaft body 100, that is, the engaging mechanism 13 is located at one end of the shaft body 100 away from the joint head 101. The engaging mechanism 13 selectively limits or allows the rod member 11 relative to the shaft body 100. One angular displacement. In this embodiment, a accommodating groove 102 is formed on one side of the shaft body 100 for accommodating the rod member 11 and the engaging mechanism 13 . The rod member 11 is detachably disposed in the accommodating groove 102 . However, in other embodiments, the rod member 11 and the shaft body 100 may also be disposed side by side. The handle 14 extends to the other end of the shaft 100. The plate member 15 is coupled to the handle 14. The user can conveniently manipulate and apply the handle 14 and the plate member 15 to place the medical device 2 in the surgical site. In this embodiment, the implant 1 can be a hip cup implant, the medical device 2 can be a hip cup implant, and in other embodiments, the medical device 2 can also be a other surgical device (eg, implant Implants, implant specimens or surgical instruments).

In this embodiment, the implanter 1 further includes a first ratchet 16 disposed at the other end of the rod member 11. The engaging structure 13 includes a latching body 130 and a second ratchet 131. The sliding body 130 is slidably coupled to the shaft body 100. For example, the engaging body 130 can be slidably coupled to the shaft body 100 by the cooperation of the latch and the sliding slot. The second ratchet teeth 131 are disposed on one side of the engaging mechanism 130 and corresponding to In the first ratchet 16, the first ratchet 16 is selectively engaged or disengaged from the second ratchet 131 to limit or allow the angular displacement of the rod 11 relative to the shaft 100. However, in other embodiments, the first ratchet 16 and the second ratchet 131 may also be replaced by other components such as cams, gears or toggle mechanisms.

Furthermore, the first ratchet 16 includes a plurality of first engaging teeth 160, a first engaging hook 161 and a first ratchet body 162. The first engaging teeth 160 and the first engaging hooks 161 protrude from the first engaging teeth 160. The first ratchet body 162 is located on one side of the first engaging teeth 160 , and one of the first engaging teeth 160 has a height lower than a height of the first engaging hook 161 .

Referring to FIG. 2, in this embodiment, the shaft body 100 and the rod member 11 are respectively in a straight rod shape, and one of the head portions 123 of the bolt 12 is received in the rod member 11 and is rotatable with the shaft body 100 and the rod member 11. A notch 110 is formed on the end of the rod member 11. The notch 110 is adjacent to the engaging head portion 101. The bolt 12 includes a neck portion 120 for engaging with the notch 110 and a connecting portion 121 for connecting the medical device 2. In this embodiment, the connecting portion 121 is connected to the medical device 2 by screwing. In other embodiments, the connecting portion 121 can also be connected to the medical device 2 indirectly or directly by means of a plug or a dovetail.

Please refer to FIG. 3 to FIG. 5 . FIG. 3 to FIG. 5 are respectively schematic diagrams showing the implant 1 in the unlocked state, the locked state and the disassembled state according to the first embodiment of the present invention, and the shaft member 10 further includes two The latch 103 is disposed at the other end of the shaft body 100. The latching body 130 is formed with two sliding slots 132. The two latching pins 103 pass through the two sliding slots 132 respectively, so that the engaging mechanism 13 can be coupled to the sliding slot 132 by the latch 103. The fit is slid relative to the shaft 100, and the sliding arrangement of the present invention is not limited to the embodiment.

In addition, the implanter 1 further includes an elastic member 17 disposed between the engaging structure 13 and the shaft body 100 for driving the latching mechanism 13 to elastically reset to engage with the first ratchet 16, and the shaft body 100 A escaping region 104 is formed on the other side, and the escaping region 104 is disposed opposite to the accommodating groove 102 to prevent the rod member 11 and the shaft body 100 from interfering with each other.

When the medical device 2 is to be attached to the implant device 1, the user can operate the engaging body 130 to slide relative to the shaft body 100 to disengage the second ratchet teeth 131 from the first ratchet teeth 16, thereby allowing the rod member to be engaged. This angular displacement relative to the shaft 100 is such that the lever member 11 can be adjusted to a release position. When the engaging body 130 is released, the elastic member 17 drives the engaging body 130 to be reset, so that the second ratchet 131 is engaged with the first engaging hook 161 to position the rod 11 as shown in FIG. The unlocking position is shown. At this time, the medical device 2 can be connected to the implanter 1 by the connecting portion 121 of the bolt 12, for example, the connecting portion 121 is pre-locked to one of the bolt holes of the medical device 2.

After the medical device 2 is attached to the implanter 1, the user can then operate the lever member 11 to be bent relative to the shaft body 100 by the release position as shown in FIG. 3 to lock as shown in FIG. Position, in the above process, the end of the rod 11 will gradually tilt the bolt 12 so that the medical device 2 can be driven by the bolt 12 to abut against one of the outside of the head 101. At the same time, the user can operate the engaging body 130 to drive the second ratchet 131 to disengage from the first engaging hook 161, and the second ratchet 131 is engaged with the corresponding first engaging tooth 160 to The lever member 11 is positioned in the locked position, thereby ensuring that the medical device 2 always abuts against the outside of the head portion 101. However, in other embodiments, the lever member 11 can also be positioned in the unlocking position as shown in FIG. 3 and the fourth embodiment by engaging the second ratchet teeth 131 with the other first engaging teeth 160. Show any of the engagement positions between the locked positions.

When the medical device 2 is to be separated from the implant device 1, the user can operate the engaging body 130 to slide relative to the shaft body 100, so that the second ratchet teeth 131 are disengaged from the first engaging teeth 160, thereby allowing the rods to be engaged. 11 with respect to the angular displacement of the shaft body 100, at this time, the force-bending rod member 11 is reset by the locking position as shown in Fig. 4 to the unlocking position as shown in Fig. 3, so that the first The engaging hook 161 contacts the second ratchet 131. Then, when the engaging body 130 is released, the elastic member 17 drives the engaging body 130 to engage the second ratchet 131 with the first engaging hook 161. When the lever 11 is in the release position, the lever 11 no longer tilts the bolt 12, so that the medical device 2 no longer abuts the outer side of the engagement end 101, so the medical device 2 can be easily used by the implanter 1 Remove it on the top.

In addition, when the lever member 11 is to be detached from the shaft body 100 for cleaning or sterilization, the user can operate the engaging body 130 to slide relative to the shaft body 100 such that the second ratchet teeth 131 and the first ratchet teeth 16 are completely When the engagement is released, the lever member 11 is moved to a disassembled position as shown in Fig. 5, so that the lever member 11 and the bolt 12 can be easily removed from the accommodating groove 102.

Since the height of each of the first engaging teeth 160 is smaller than the height of the first engaging hooks 161, when the engaging body 130 is operated to slide a predetermined distance to disengage the second ratchet teeth 131 from the first engaging teeth 160 When engaging, the second ratchet 131 will first contact the first engaging hook 161, so that the rod 11 does not suddenly move to the disassembling position, and the two-stage operation mode can prevent the rod 11 and the shaft 100 from being accidental. Separation.

Referring to FIGS. 6 and 7, the implant 1' of the second embodiment differs from the implant 1 of the first embodiment in that the implanter 1' further includes a screwdriver 180 for driving the bolt 12. 'One of the bolts 12' is formed with a set of joints 124 for engaging the screwdriver 180, while in other embodiments, the bolts 12' may be driven by bevel gears or other transmission elements. A shaft member 100' is curved, and a shaft member 10' includes a pivot pin 105 disposed at the other end of the shaft body 100'. The engaging body 130' is rotatably coupled to the shaft by a pivot pin 105. The body 100', in order to limit or allow the angular displacement of the rod member 11' relative to the shaft body 100', the embodiment has the same structure and function as the elements having the same reference numerals in the foregoing embodiments, and details are not described herein.

Please refer to FIG. 8 to FIG. 10 . FIG. 8 to FIG. 10 are schematic diagrams showing the implant device 1 ′ in the unlocked state, the locked state and the disassembled state according to the second embodiment of the present invention, when the medical device 2 is to be connected. By the implant 1', the user can operate the engaging body 130' to rotate relative to the shaft 100' to allow the angular displacement of the rod 11' relative to the shaft 100' such that the rod 11' can be adjusted to As one of the unlocking positions shown in Fig. 8, the medical device 2 can be coupled to the implant 1' by the cooperation of the screwdriver 180 and the bolt 12'.

After the medical device 2 is attached to the implanter 1', the user operable lever 11' is bent relative to the shaft 100' to be moved by the unlocking position as shown in Fig. 8 to Fig. 9 One of the locking positions is shown, in which one end of the rod 11' gradually tilts the bolt 12' such that the medical device 2 abuts against the outside of the engaging head 101. Then, the user can operate the engaging body 130 ′ to rotationally drive the second ratchet 131 to disengage from the first engaging hook 161 and engage with the corresponding first engaging tooth 160 to connect the rod 11 ′. Positioned in the locked position, thereby ensuring that the medical device 2 abuts against the outside of the engaging head 101.

When the medical device 2 is to be separated from the implant device 1', the user can operate the engaging body 130' to rotate relative to the shaft body 100', so that the second ratchet teeth 131 are disengaged from the first engaging teeth 160, thereby Allowing the angular displacement of the rod member 11' relative to the shaft body 100', at which time the force-stretched rod member 11' is biased toward the lock position as shown in Fig. 8 toward the lock shown in Fig. 8. The position is reset such that the first snap hook 161 contacts the second ratchet 131. Then, when the engaging body 130' is released, the elastic member 17 drives the engaging body 130' to be reset and engaged with the first engaging hook 161. When the lever 11' is in the unlocked position, the lever 11' no longer tilts the bolt 12', so that the medical device 2 no longer abuts against the outer side of the engagement end 101, so the medical device 2 can be easily implanted Remove it from the 1'.

Moreover, when the rod member 11' is to be detached from the shaft body 100' for cleaning and sterilization, the user can operate the engaging body 130' to rotate relative to the shaft body 100', so that the second ratchet teeth 131 and the first The ratchet 16 is completely disengaged from the engagement. At this time, the rod 11' is in a disassembled position as shown in Fig. 10, so that the rod 11', the bolt 12' and the screwdriver 180 can be easily accommodated by the receiving groove 102. Disassemble for thorough cleaning and sterilization.

Compared with the prior art, the present invention utilizes a rod to sway the bolt to drive the medical device against the outer side of the joint head; further, the embodiment of the invention further utilizes a snap mechanism to selectively limit the rod relative to the shaft The angular displacement of the body ensures that the medical device abuts the outer side of the head, thereby effectively avoiding accidental loosening during the surgical operation, thereby improving operational reliability and surgical precision. In addition, compared with the conventional design, the present invention is simple and reliable, and has the advantages of convenient operation and easy cleaning and sterilization, thereby effectively reducing the burden on medical personnel and reducing the risk of postoperative infection of patients. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

1, 1'‧‧‧ implanter

10, 10'‧‧‧ shaft parts

100, 100’‧‧‧ shaft body

101‧‧‧ joint head

102‧‧‧ accommodating slots

103‧‧‧Tram

104‧‧‧ escaping area

105‧‧‧ pivot pin

11, 11'‧‧‧ rods

110‧‧‧ gap

12, 12’‧‧‧ bolts

120‧‧‧ neck

121‧‧‧Connecting Department

123, 123’‧‧‧ head

124‧‧‧ Sockets

13, 13' ‧ ‧ engaging institutions

130, 130’‧‧‧ engaged body

131‧‧‧second ratchet

132‧‧‧Chute

14‧‧‧Hands

15‧‧‧ boards

16‧‧‧First ratchet

160‧‧‧First engagement tooth

161‧‧‧First card hook

162‧‧‧First ratchet body

17‧‧‧Flexible parts

180‧‧‧ Screwdriver

2‧‧‧ medical devices

Fig. 1 is a schematic view showing the appearance of an implanter according to a first embodiment of the present invention. Fig. 2 is an exploded view of the components of the implanter of the first embodiment of the present invention. Fig. 3 is a schematic view showing the state in which the implanter is in the unlocked state according to the first embodiment of the present invention. Figure 4 is a schematic view showing the implanter in a locked state according to the first embodiment of the present invention. Fig. 5 is a schematic view showing the implanter in a disassembled state according to the first embodiment of the present invention. Figure 6 is a schematic view showing the appearance of an implanter according to a second embodiment of the present invention. Figure 7 is an exploded view of the components of the implanter of the second embodiment of the present invention. Figure 8 is a schematic view of the second embodiment of the present invention in which the implanter is in a released state. Figure 9 is a schematic view showing the implanter in a locked state according to a second embodiment of the present invention. Figure 10 is a schematic view showing the implanter in a disassembled state according to a second embodiment of the present invention.

Claims (10)

An implant device suitable for use in a medical device, comprising: a shaft member comprising a shaft body and one of the one end of the shaft body engaging the head; a rod member movably disposed on the shaft body, One end of the rod is adjacent to an inner side of the joint head; a bolt mounted to the end of the rod and passing through the joint head to connect the medical device; and a snap mechanism movably disposed At the other end of the shaft body and away from the joint head, the engaging mechanism selectively limits or allows angular displacement of the rod relative to the shaft body; wherein when the rod member is bent relative to the shaft body The end of the rod sways the bolt such that the medical device is driven by the bolt to abut one of the outside of the engagement head. The implanter of claim 1, further comprising a first ratchet disposed at the other end of the rod, the engaging mechanism comprising a latching body and a second ratchet, the second ratchet And disposed on one side of the engaging body and corresponding to the first ratchet, and the first ratchet is configured to be engaged with the second ratchet to limit the angular displacement of the rod relative to the shaft . The implanter of claim 2, wherein the first ratchet comprises a plurality of first engaging teeth, a first engaging hook and a first ratchet body, the plurality of first engaging teeth and The first engaging hook protrudes from the first ratchet body, the first engaging hook is disposed on one side of the plurality of first engaging teeth, and a height of each of the first engaging teeth is smaller than the first engaging The hook has a height, and the second ratchet is selectively engaged with the corresponding first engaging tooth or the first engaging hook to limit the angular displacement of the rod relative to the shaft. The implanter of claim 3, wherein when the second ratchet is engaged with the corresponding first engaging tooth, the lever is in a locked position, and when the second ratchet is engaged When the first latch is hooked, the lever is in a release position, and when the second ratchet is disengaged from the first ratchet, the lever is in a disassembled position. The implant device of claim 1, wherein the shaft body and the rod member are respectively in the shape of a straight rod, and a head of the bolt is received in the rod member and rotatable with the shaft member and the rod member. The implanter of claim 1, wherein the shaft body is curved, the implanter further comprises a screwdriver, wherein a head of one of the bolts is formed with a set of joints for engaging the screwdriver. The screwdriver can drive the bolt to rotate. The implant of claim 1, wherein the rod is detachably disposed on the shaft. The implant of claim 1, wherein the end of the rod is formed with a notch adjacent to the engaging head, and the bolt includes a neck for engaging the notch on the rod . The implant of claim 1, wherein the bolt comprises a connecting portion connected to the medical device by means of a thread, a plug or a dovetail. The implant of claim 1, wherein the medical device is an implant, an implant test piece, or a surgical instrument.