Retriever for intervertebral fusion cage

Abstract

The application provides a holder for an intervertebral fusion cage, comprising an outer tube, an inner tube penetrating into the outer tube, the inner tube comprising an inner tube body and a clamping tube, a partition groove being arranged at the front end of the clamping tube, the partition groove separating the clamping tube into two structurally symmetrical tube bodies, a holding piece being arranged at the front end of each tube body, a connecting rod being connected with the outer tube at the first end, and a buckle being arranged on the inner tube body and movably connected with the second end of the connecting rod. The holder for the intervertebral fusion cage is simple in operation, convenient for holding and taking the intervertebral fusion cage, and effective in saving the operation time for driving the intervertebral fusion cage into the intervertebral space and separating the intervertebral fusion cage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of holding tools, in particular to a holder for an intervertebral fusion cage. BACKGROUND

[0002] The holder for an intervertebral fusion cage is the most critical tool for an intervertebral fusion surgery, which needs to stably hold the intervertebral fusion cage so as to insert the intervertebral fusion cage into the intervertebral space. Especially for the expandable intervertebral fusion cage, the conventional holder for an intervertebral fusion cage cannot be used because the interface of the expandable intervertebral fusion cage cannot be designed as a threaded interface.

[0003] In view of the above, it is particularly important to design a holder which can hold both the conventional intervertebral fusion cage and the expandable intervertebral fusion cage, and the holder needs to be easily separated from the intervertebral fusion cage after the intervertebral fusion cage is installed into the intervertebral space. How to design a holder which is easy to operate and convenient to separate from the intervertebral fusion cage is a problem to be solved by those skilled in the art. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present application is to provide a holder for an intervertebral fusion cage which is easy to operate, convenient to quickly hold the intervertebral fusion cage, facilitates the effective insertion of the intervertebral fusion cage into the intervertebral space, and easily separates from the intervertebral fusion cage.

[0005] To achieve the above object and other related objects, the present application provides a holder for an intervertebral fusion cage, comprising:

[0006] an outer tube;

[0007] an inner tube inserted into the outer tube, the inner tube comprising an inner tube body and a clamping tube connected to the front end of the inner tube body, the front end of the clamping tube being provided with a partition groove which divides the clamping tube into two structurally symmetrical tube bodies, and the front end of each tube body being provided with a holding piece;

[0008] a handle connected to the inner tube;

[0009] a connecting rod, the first end of the connecting rod being connected to the outer tube through a first hinge;

[0010] and a clasp connected to the inner tube body through a third hinge, the second end of the connecting rod being connected to the clasp through a second hinge;

[0011] The pulling member can drive the outer tube to move along the front-back direction of the inner tube; when the outer tube moves forward and the inner wall of the outer tube presses the two tube bodies, the two tube bodies are in the collapsed state; when the outer tube moves backward and the inner wall of the outer tube is separated from the two tube bodies, the two tube bodies are in the expanded state.

[0012] Preferably, the front end of the clamping tube is provided with an inner tube taper surface, the size of the cross section of the inner tube taper surface decreases from front to back; the front end of the inner wall of the outer tube is provided with an outer tube taper part, the size of the cross section of the outer tube taper part decreases from front to back; the outer tube taper part can press the inner tube taper surface.

[0013] Further, the inner part of the outer tube is provided with an expansion driving member;

[0014] The outer side of the clamping tube is provided with a horn-shaped sliding groove for inserting the expansion driving member, the horn-shaped sliding groove extends along the front-back direction of the clamping tube; the size of the cross section of the horn-shaped sliding groove decreases from front to back; the separation groove is communicated with the horn-shaped sliding groove;

[0015] When the expansion driving member moves to the front end of the horn-shaped sliding groove, the tube body is in the collapsed state; when the expansion driving member moves to the rear end of the horn-shaped sliding groove, the two tube bodies are in the expanded state.

[0016] Further, the inner part of the outer tube is provided with an expansion guiding member; the outer side of the clamping tube is provided with a tube guiding groove for inserting the expansion guiding member, the tube guiding groove extends along the front-back direction of the clamping tube.

[0017] Preferably, the two opposite sides of the intervertebral fusion cage are each provided with a receiving part, and the holding member of the two tube bodies can hold the two receiving parts.

[0018] Preferably, the pulling member is installed on the inner tube body through a sliding sleeve, the sliding sleeve is provided with a pulling limiting member; when the pulling limiting member blocks the rotation of the pulling member, the two tube bodies are in the collapsed state.

[0019] Further, the pulling member is provided with a protruding member; when the pulling limiting member abuts against the protruding member, the two tube bodies are in the expanded state.

[0020] Further, the outer tube is connected with the connecting rod through a transmission sleeve, the transmission sleeve is sleeved on the outer tube; the transmission sleeve is provided with a guiding through hole extending along the front-back direction of the transmission sleeve; a limiting sliding member is connected with the outer tube and penetrates into the guiding through hole.

[0021] Further, the transmission sleeve is internally provided with a buffer spring between the rear end of the outer tube and the transmission sleeve.

[0022] Further, the outer tube is provided with a fixing groove, and the fixing elastic ring is clamped between the fixing groove and the inner cavity of the transmission sleeve.

[0023] Further, the front side wall of the sliding sleeve is provided with an insertion hole for the insertion of the inner tube; the sliding sleeve is internally provided with a driving button, and the driving button is movable along the up-down direction of the sliding sleeve; a support spring is arranged between the bottom surface of the driving button and the inner cavity of the sliding sleeve; the driving button is provided with a button through hole for the insertion of the inner tube, and the button through hole is provided with a blocking piece, and the front side of the blocking piece is provided with a tube guide part;

[0024] The rear end of the inner tube body is connected with a lead-in tube, and the lead-in tube has a structure that the cross-sectional dimension gradually decreases from front to rear; the lead-in tube is movable along the tube guide part; a clamping groove is arranged along the outer peripheral surface of the rear end of the inner tube body, and the clamping groove is used for clamping the blocking piece.

[0025] Preferably, a plurality of tube grooves are arranged on the outer side surface of the inner tube along the circumferential direction of the inner tube;

[0026] The handle is connected with the inner tube through a conversion mechanism; the conversion mechanism comprises:

[0027] A sleeve is used for the insertion of the inner tube; a plurality of support grooves are arranged on the outer side surface of the sleeve along the circumferential direction of the sleeve; the groove bottom surface of each support groove is provided with a groove bottom through hole in communication with the inner cavity of the sleeve; and each support groove internally accommodates a conversion body;

[0028] A positioning spring is sleeved on the sleeve;

[0029] A sliding sleeve is sleeved on the sleeve, and the positioning spring supports the rear end surface of the sliding sleeve; the inner wall of the sliding sleeve is provided with a pressing piece, and the front side of the pressing piece is provided with a conversion guide part; the pressing piece can press all the conversion bodies, so that each conversion body passes through the groove bottom through hole and extends into the tube groove; when the sliding sleeve is moved backward and the sleeve is rotated, the conversion body is moved out of the tube groove, and the conversion body moves along the conversion guide part.

[0030] Further, the outer side surface of the sleeve is provided with a cylinder installation groove, and the cylinder elastic ring is clamped between the cylinder installation groove and the inner cavity of the sliding sleeve.

[0031] Further, a barrel guiding groove is arranged on the outer side of the sleeve; a sleeve guiding part is arranged on the inner wall of the sliding sleeve, and the sleeve guiding part is inserted into the barrel guiding groove.

[0032] Preferably, a barrel positioning groove is arranged on the inner wall of the sleeve; a rod positioning groove is arranged on the outer side of the extractor rod for inserting the inner tube; and a positioning ring is sleeved on the extractor rod and is clamped between the rod positioning groove and the barrel positioning groove.

[0033] Preferably, the number of the connecting rod parts is two, and the two connecting rod parts are oppositely arranged, and a limiting protrusion is arranged on the opposite side of each of the two connecting rod parts.

[0034] As described above, the holder of the intervertebral fusion cage has the following beneficial effects:

[0035] The holder of the intervertebral fusion cage drives the rotation of the buckle part, so that the buckle part drives the movement of the outer tube through the connecting rod part, the outer tube moves along the front-back direction of the inner tube, and the adjustment between the folding state and the distraction state of the two tube bodies is realized, so that the two tube bodies can stably hold the intervertebral fusion cage and quickly separate from the intervertebral fusion cage; the holder of the intervertebral fusion cage is simple to operate, is convenient for quickly holding and taking the intervertebral fusion cage, is convenient for effectively driving the intervertebral fusion cage into the intervertebral space and easily separating from the intervertebral fusion cage, and effectively saves the operation time. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 A perspective structural schematic view showing that the holder of the embodiment of the present application is in the folding state and holds the intervertebral fusion cage.

[0037] Figure 2 A perspective structural schematic view showing that the holder of the embodiment of the present application is in the disassembled state.

[0038] Figure 3 A perspective structural schematic view showing that the holder of the embodiment of the present application is in the folding state.

[0039] Figure 4 An enlarged structural schematic view of position A of Figure 3 An enlarged structural schematic view of position A of

[0040] Figure 5 An enlarged structural schematic view of position B of Figure 3 An enlarged structural schematic view of position B of

[0041] Figure 6 A cross-sectional structural schematic view showing that the holder of the embodiment of the present application is in the folding state.

[0042] Figure 7 An enlarged structural schematic view of Figure 6enlarged structural schematic view at C of

[0043] Figure 8 shown as Figure 6 enlarged structural schematic view at D of

[0044] Figure 9 shown as Figure 6 enlarged structural schematic view at E of

[0045] Figure 10 shown as a front plan view of the holder of the embodiment of the application in the collapsed state.

[0046] Figure 11 shown as a perspective view of the outer tube of the holder of the embodiment of the application.

[0047] Figure 12 shown as a cross-sectional view of the outer tube of the holder of the embodiment of the application.

[0048] Figure 13 shown as a front view of the holder of the embodiment of the application in the collapsed state, without the outer tube.

[0049] Figure 14 shown as a perspective view of the inner tube of the holder of the embodiment of the application.

[0050] Figure 15 shown as a side view of the holder of the embodiment of the application in the collapsed state.

[0051] Figure 16 shown as a perspective view of the intervertebral cage of the embodiment of the application.

[0052] Figure 17 shown as a perspective view of the holder of the embodiment of the application in the expanded state.

[0053] Figure 18 shown as Figure 17 enlarged structural schematic view at F of

[0054] Figure 19 shown as Figure 17 enlarged structural schematic view at G of

[0055] Figure 20 shown as a cross-sectional view of the holder of the embodiment of the application in the expanded state.

[0056] Figure 21 shown as Figure 20 enlarged structural schematic view at H of

[0057] Figure 22 shown asFigure 20 An enlarged structural schematic view of I in FIG. 1.

[0058] Figure 23 A front plan view structural schematic view of the holder of the present application in an open state.

[0059] Figure 24 A side view structural schematic view of the holder of the present application in an open state.

[0060] Figure 25 A perspective view structural schematic view of the holder of the present application without the inner tube and the opener rod.

[0061] Figure 26 An exploded view structural schematic view of the holder of the present application without the inner tube and the opener rod.

[0062] Figure 27 An enlarged structural schematic view of J in FIG. 1. Figure 26

[0063] Figure 28 A perspective view structural schematic view of the holder of the present application with the limiting protrusion on the connecting rod.

[0064] Figure 29 A perspective view structural schematic view of the holder of the present application with the snap element.

[0065] Figure 30 A perspective view structural schematic view of the holder of the present application with the sliding sleeve.

[0066] Figure 31 A perspective view structural schematic view of the holder of the present application with the driving button.

[0067] Figure 32 A sectional view structural schematic view of the holder of the present application with the driving button.

[0068] Figure 33 A perspective view structural schematic view of the holder of the present application with the transmission sleeve.

[0069] Figure 34 A perspective view structural schematic view of the holder of the present application with the sleeve and the handle connected.

[0070] Figure 35 An exploded view structural schematic view of the holder of the present application with the sleeve and the handle connected.

[0071] Figure 36 An internal structural schematic view of the holder of the present application with the conversion body passing through the bottom through hole of the slot.

[0072] ​Figure 37 It is a schematic diagram showing the internal structure of the holder according to an embodiment of the present invention when the conversion body has not passed through the through hole at the bottom of the groove.

[0073] Figure 38 Shown is a schematic structural diagram of a sleeve of a holder according to an embodiment of the present invention.

[0074] Figure 39 Shown is a schematic cross-sectional structure diagram of a sleeve of a holder according to an embodiment of the present invention.

[0075] Figure 40 Shown is a schematic diagram of the internal structure of the sliding sleeve of the holder of this embodiment.

[0076] Figure 41 It is a structural schematic diagram showing that a positioning collar is sleeved on the screwdriver rod of the holder according to an embodiment of the present invention.

[0077] Figure 42 It is a schematic structural diagram showing the location of the rod positioning groove on the screwdriver rod of the holder of this embodiment.

[0078] Figure 43 The figure shows a guide through hole structure of a holder according to an embodiment of the present invention, in which the guide through hole is a schematic diagram of a three-dimensional structure of a circumferentially closed channel.

[0079] Figure 44 The figure shows a cylindrical guide groove structure of a holder according to an embodiment of the present invention, in which the cylindrical guide groove of the sleeve is a structure with closed groove side walls, and a schematic three-dimensional structure diagram of the sleeve and the sliding sleeve when they are disassembled.

[0080] Figure 45 It shows another cylindrical guide groove structure of the holder according to an embodiment of the present invention, which is a schematic three-dimensional structure diagram when the cylindrical guide groove of the sleeve is a structure with closed groove side walls.

[0081] Figure 46 The diagram shows a holding piece structure of a holder according to an embodiment of the present invention, in which the holding piece is a three-dimensional structural diagram of a double-sided ear structure.

[0082] Figure 47 It is a schematic cross-sectional view showing the tube body of the holder extending from the outer tube according to an embodiment of the present invention.

[0083] Figure 48 Shown is a schematic structural diagram of another intervertebral fusion cage structure according to an embodiment of the present invention, in which the receiving portion on the intervertebral fusion cage is a slot.

[0084] Explanation of Figure Numbers

[0085] 10 Interbody fusion cage

[0086] 101 Undertaking Department

[0087] 11 receiving groove

[0088] 12 notch

[0089] 13 insertion hole

[0090] 100 outer tube

[0091] 110 expansion driving member

[0092] 120 expansion guiding member

[0093] 130 outer tube taper

[0094] 140 fixing groove

[0095] 150 terminal plate direction marker

[0096] 200 inner tube

[0097] 210 inner tube body

[0098] 211 clamping groove

[0099] 220 clamping tube

[0100] 221 tube guiding groove

[0101] 222 horn-shaped sliding groove

[0102] 223 partition groove

[0103] 224 tube body

[0104] 225 inner tube taper

[0105] 226 holding member

[0106] 2261 hook plate member

[0107] 2262 embedded head

[0108] 2263 connecting plate

[0109] 2264 ear

[0110] 227 flange

[0111] 230 introduction tube

[0112] 240 extension tube

[0113] 241 tube recess

[0114] 300 handle

[0115] 400 connecting rod member

[0116] 410 limiting convex portion

[0117] 500 buckle member

[0118] 510 protruding member

[0119] 520 buckle body

[0120] 530 buckle handle

[0121] 540 recessed groove

[0122] 610 sliding sleeve

[0123] 611 access hole

[0124] 620 buckle limiting member

[0125] 630 driving button

[0126] 631 button through hole

[0127] 632 blocking member

[0128] 633 pipe guiding portion

[0129] 634 supporting hole

[0130] 635 supporting member

[0131] 640 supporting spring

[0132] 710 transmission sleeve

[0133] 711 guiding through hole

[0134] 712 blocking portion

[0135] 713 installation inclined surface

[0136] 714 sleeve portion dismounting hole

[0137] 715 cleaning hole

[0138] 720 buffer spring

[0139] 730 limiting sliding member

[0140] 740 fixed portion elastic snap ring

[0141] 741 fixed portion ring body opening

[0142] 810 sleeve

[0143] 811 supporting groove

[0144] 812 groove bottom through hole

[0145] 813 positioning member

[0146] 814 barrel portion installation groove

[0147] 815 barrel guide slot

[0148] 816 barrel positioning slot

[0149] 818 impact disc

[0150] 820 conversion body

[0151] 830 positioning spring

[0152] 840 sliding sleeve

[0153] 841 top presser

[0154] 842 conversion guide

[0155] 843 sleeve guide

[0156] 850 barrel elastic snap ring

[0157] 910 pick rod

[0158] 911 rod positioning slot

[0159] 921 first hinged member

[0160] 922 second hinged member

[0161] 923 third hinged member

[0162] 930 positioning snap ring

[0163] L center point of end face of first hinged member

[0164] M center point of end face of second hinged member

[0165] N center point of end face of third hinged member DETAILED DESCRIPTION

[0166] The present application is explained by specific embodiments as follows, and other advantages and effects of the present application can be easily understood by those skilled in the art from the contents disclosed in the present specification.

[0167] Please refer to the drawings. It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the defined conditions under which the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship is also considered as the implementation of the present application without changing the technical content.

[0168] In the present application, as Figure 1 indicated, when the holder of the intervertebral fusion cage holds the intervertebral fusion cage 10, "front end" or "forward" refers to the end or direction closer to the intervertebral fusion cage 10, away from the operator, and "rear end" or "backward" refers to the end or direction farther away from the intervertebral fusion cage 10, closer to the operator.

[0169] As Figures 1 to 3 , Figures 6 to 8 , Figures 13 to 18 , Figures 20 to 24 indicated, the holder of the intervertebral fusion cage of the present embodiment comprises:

[0170] an outer tube 100;

[0171] an inner tube 200 penetrating in the outer tube 100; the inner tube 200 comprises an inner tube body 210 and a clamping tube 220 connected to the front end of the inner tube body 210; the front end of the clamping tube 220 is provided with a partition groove 223, which divides the clamping tube 220 into two structurally symmetrical tube bodies 224; the front end of each tube body 224 is provided with a holding piece 226;

[0172] a handle 300 connected to the inner tube 200;

[0173] a connecting rod 400, the first end of the connecting rod 400 is connected to the outer tube 100 through a first hinge 921;

[0174] and a trigger 500 connected to the inner tube body through a third hinge 923, the second end of the connecting rod 400 is connected to the trigger 500 through a second hinge 922;

[0175] The toggle member 500 can drive the outer tube member 100 to move along the front-back direction of the inner tube member 200 through the connecting rod member 400; when the outer tube member 100 moves forward and the inner wall of the outer tube member 100 presses the two tube bodies 224, the two tube bodies 224 are in the closing state; when the outer tube member 100 moves backward and the inner wall of the outer tube member 100 is separated from the two tube bodies 224, the two tube bodies 224 are in the opening state.

[0176] The holder of the intervertebral fusion cage of the present application drives the toggle member 500 to rotate, so that the toggle member 500 drives the outer tube member 100 to move through the connecting rod member 400, the outer tube member 100 moves along the front-back direction of the inner tube member 200, and the two tube bodies 224 are adjusted between the closing state and the opening state; when the two tube bodies 224 are in the closing state, the two tube bodies 224 can stably hold the intervertebral fusion cage 10; when the two tube bodies 224 are in the opening state, the two tube bodies 224 can quickly separate from the intervertebral fusion cage 10. That is, the inner tube member 200 is in the opening state in the natural state and is in the closing state under the limitation of the outer tube member 100.

[0177] The holder of the intervertebral fusion cage of the present application only needs to drive the toggle member 500 when used, which realizes one-key fast holding of the intervertebral fusion cage 10 and one-key fast separation from the intervertebral fusion cage 10. The holder of the intervertebral fusion cage of the present application is simple to operate, is convenient for fast holding and separation of the intervertebral fusion cage 10, is convenient for effectively driving the intervertebral fusion cage 10 into the intervertebral space and easily separating from the intervertebral fusion cage 10, and effectively saves the operation time.

[0178] As shown in Figure 7 , Figure 11 , Figure 12 , Figure 14 and Figure 21 , the front end of the clamping tube 220 is provided with an inner tube conical surface 225, the size of the cross section of the inner tube conical surface 225 decreases from front to back; the front end of the inner wall of the outer tube member 100 is provided with an outer tube conical part 130, the size of the cross section of the outer tube conical part 130 decreases from front to back; the outer tube conical part 130 can press the inner tube conical surface 225. The structure of the inner tube conical surface 225 and the outer tube conical part 130 is convenient for the outer tube conical part 130 to press the inner tube conical surface 225 when the two tube bodies 224 are in the closing state, and is also convenient for the outer tube member 100 to separate from the inner tube member 200 when the outer tube member 100 moves backward. In the embodiment, the size of the diameter of the cross section of the inner tube conical surface 225 decreases from front to back, and the size of the diameter of the cross section of the outer tube conical part 130 decreases from front to back. The inner part of the outer tube member 100 is provided with an opening driving member 110;

[0179] In some embodiments, the outer side of the clamping tube 220 is provided with a trumpet-shaped sliding groove 222 for the insertion of the expansion driving member 110, which extends along the front-rear direction of the clamping tube 220; the cross-sectional dimension of the trumpet-shaped sliding groove 222 decreases from front to back; the partition groove 223 communicates with the trumpet-shaped sliding groove 222;

[0180] When the expansion driving member 110 moves to the front end of the trumpet-shaped sliding groove 222, i.e., the expansion driving member 110 at the front end of the outer tube 100 slides along the trumpet-shaped sliding groove 222 of the inner tube 200 to expand the front end of the inner tube 200, the tube body 224 is in the collapsed state; when the expansion driving member 110 moves to the rear end of the trumpet-shaped sliding groove 222, the expansion driving member 110 pushes the two tube bodies 224 to move away from each other, and the two tube bodies 224 are in the expanded state.

[0181] Both opposite sides of the intervertebral fusion cage 10 are provided with receiving portions 101, and the holding members 226 of the two tube bodies 224 can clamp the two receiving portions 101. The structure of the holding member 226 cooperates with the receiving portion 110, and the holding member 226 can be arbitrarily structured to stably hold the intervertebral fusion cage 10.

[0182] The driving buckle member 500 is rotated to move the outer tube 100 through the connecting rod 400, and the expansion driving member 110 of the outer tube 100 moves in the trumpet-shaped sliding groove 222 to adjust the two tube bodies 224 between the collapsed state and the expanded state; when the two tube bodies 224 are in the collapsed state, the two holding members 226 clamp the two receiving portions 101, and the inner wall of the outer tube 100 presses the two tube bodies 224, so that the two tube bodies 224 clamp the intervertebral fusion cage 10, and the two tube bodies 224 stably hold the intervertebral fusion cage 10; when the tube body 224 is in the expanded state, the expansion driving member 110 pushes the two tube bodies 224 to move away from each other, and the expansion driving member 110 applies a pushing force to the two tube bodies 224, so that the two tube bodies 224 are always in the expanded state, preventing the two tube bodies 224 from being unable to expand due to the pressure of human tissues or other operating devices, and preventing the holding member 226 at the front end of the holder of the intervertebral fusion cage from being unable to disengage from the intervertebral fusion cage 10.

[0183] The inner part of the outer tube 100 is provided with a distraction guide 120; the outer side of the clamping tube 220 is provided with a tube guide groove 221 for the insertion of the distraction guide 120, the tube guide groove 221 extends along the front-rear direction of the clamping tube 220, preventing the rotation of the outer tube 100. The distraction guide 120 is in the tube guide groove 221, keeping the outer tube 100 moving along the front-rear direction of the inner tube 200, preventing the outer tube 100 from rotating relative to the inner tube 200.

[0184] The receiving part 101 includes a receiving groove 11 provided on the two opposite sides of the intervertebral fusion cage 10 and a notch 12 provided on the groove bottom surface of the receiving groove 11; the holding member 226 is a hook structure; two hook structures can be respectively inserted into two notches 12. When the two tube bodies 224 are in the folded state, the two holding members 226 can be respectively inserted into the two notches 12, so that the two tube bodies 224 can stably clamp the intervertebral fusion cage 10.

[0185] As shown in Figure 1 , Figure 4 and Figure 16 , in this embodiment, the holding member 226 is a hook structure, which includes a hook plate member 2261 connected to the front end of the tube body 224 and an embedded head 2262 connected to the hook plate member 2261. The embedded heads 2262 of the two hook structures are oppositely arranged, the hook plate member 2261 can be inserted into the receiving groove 11, and the embedded head 2262 can be inserted into the notch 12. This structure makes the hook structure stably connected with the intervertebral fusion cage 10, and facilitates the hook structure to quickly grip or separate from the intervertebral fusion cage 10 when the two tube bodies 224 are distracted.

[0186] In some alternative embodiments, as shown in Figures 46 to 48 , the holding member 226 can also be a bilateral ear structure, which includes a connecting plate 2263 connected to the front end of the tube body 224 and an ear part 2264 provided on the two opposite sides of the connecting plate 2263; the receiving part 101 can be a insertion slot for the insertion of the bilateral ear structure, the insertion slot is matched with the bilateral ear structure, and the shape of the insertion slot is the same as that of the bilateral ear structure. Figure 48 The intervertebral fusion cage 10 in is a regular intervertebral fusion cage with fixed specifications, and does not need a distraction operation procedure.

[0187] In this embodiment, the cross section of the inner tube body 210 is circular, the plane passing through the central axis of the inner tube body 210 and parallel to the front-rear direction of the inner tube body 210 is a vertical plane, and the two tube bodies 224 are symmetrically arranged with the vertical plane as the central axis plane.

[0188] As shown in Figure 7 and Figure 14As shown, the outer side of the front end of the clamping tube 220 is provided with a flange 227, which is behind the holding piece 226; when the two tube bodies 224 are in the folded state, the front end of the outer tube 100 contacts the flange 227. This structure makes the two tube bodies 224 in the folded state, and the outer tube 100 is pressed against the flange 227, so that the two tube bodies 224 can be kept in a more stable folded state.

[0189] As shown in Figure 1 , Figure 13 and Figure 14 , the expansion drive 110 is a cylindrical structure, the cross-sectional diameter of the expansion drive 110 is smaller than the cross-sectional width W1 of the front end of the trumpet-shaped sliding groove 222, and the cross-sectional diameter of the expansion drive 110 is greater than the cross-sectional width W2 of the rear end of the trumpet-shaped sliding groove 222. The structure of the expansion drive 110 is convenient for processing, and the expansion drive 110 can stably move in the trumpet-shaped sliding groove 222. In this embodiment, the expansion drive 110 is a cylindrical pin.

[0190] The tube guide groove 221 communicates with the trumpet-shaped sliding groove 222, which can facilitate the processing of the inner tube 200, and also facilitate the quick installation of the outer tube 100 and the inner tube 200. The tube guide groove 221 penetrates to the rear end of the inner tube 200, which facilitates the removal of the inner tube 200 from the outer tube 100.

[0191] In order to make the movement of the outer tube 100 relative to the inner tube 200 more stable, the number of trumpet-shaped sliding grooves 222 and tube guide grooves 221 is two, and the number of expansion drives 110 and expansion guides 120 is two. The two trumpet-shaped sliding grooves 222 are symmetrically arranged on the outer side of the inner tube 200, and the two tube guide grooves 221 are symmetrically arranged on the outer side of the inner tube 200. Each trumpet-shaped sliding groove 222 is inserted with an expansion drive 110, and each tube guide groove 221 is inserted with an expansion guide 120.

[0192] As shown in Figure 1 , Figure 5 , Figure 14 and Figure 29 , the buckle 500 is installed on the inner tube body 210 through the sliding sleeve 610, and the sliding sleeve 610 is provided with a buckle limiting piece 620; when the buckle limiting piece 620 blocks the rotation of the buckle 500, the two tube bodies 224 are in the folded state. The rotation of the buckle 500 is limited by the buckle limiting piece 620, so that the position of the buckle 500 is stable when the two tube bodies 224 are in the folded state.

[0193] As shown in Figure 1 , Figure 5 , Figures 24 to 27 , Figure 29As shown, the buckle member 500 includes a buckle body 520 and a buckle handle 530 connected with the buckle body 520, and the buckle body 520 is movably connected with the sliding sleeve 610. Driving the buckle handle 530 to move forward, the buckle handle 530 drives the buckle body 520 to rotate, and the buckle body 520 drives the outer tube member 100 to move backward through the connecting rod member 400; driving the buckle handle 530 to move backward, the buckle handle 530 drives the buckle body 520 to rotate, and the buckle body 520 drives the outer tube member 100 to move forward through the connecting rod member 400.

[0194] A recessed groove 540 is arranged at the connection between the buckle body 520 and the buckle handle 530. When the buckle limiting member 620 blocks the rotation of the buckle member 500, the buckle limiting member 620 is inserted into the recessed groove 540. This structure makes the two tube bodies 224 in the folded state, and the buckle member 500 and the sliding sleeve 610 do not move relative to each other, and the position of the buckle member 500 is locked.

[0195] As shown in Figure 1 , Figure 5 , Figure 8 , Figure 15 , Figure 24 , Figure 29 and Figure 33 , the outer tube member 100 is connected with the connecting rod member 400 through a transmission sleeve 710, and the transmission sleeve 710 is sleeved on the outer tube member 100. The transmission sleeve 710 is provided with a guide through hole 711 (as shown in Figure 5 and Figure 33 ), and the guide through hole 711 extends along the front and back directions of the transmission sleeve 710. A limiting sliding member 730 is connected with the outer tube member 100, and the limiting sliding member 730 penetrates into the guide through hole 711. In this embodiment, the buffer spring 720 is a wave spring.

[0196] Driving the buckle member 500 to move forward, the buckle member 500 moves backward through the connecting rod member 400, the connecting rod member 400 drives the transmission sleeve 710 to move backward, and the transmission sleeve 710 drives the outer tube member 100 to move backward, so that the two tube bodies 224 reach the open state; driving the buckle member 500 to move backward, the buckle member 500 moves forward through the connecting rod member 400, the connecting rod member 400 drives the transmission sleeve 710 to move forward, and the transmission sleeve 710 drives the outer tube member 100 to move forward until the two tube bodies 224 reach the folded state.

[0197] In some preferred embodiments, the inside of the transmission sleeve 710 is provided with a buffer spring 720, and the buffer spring 720 is arranged between the rear end of the outer tube member 100 and the transmission sleeve 710. The buffer spring 720 can achieve the buffering effect, protect the outer tube member 100 and the transmission sleeve 710, and reduce the tolerance requirement, which is helpful to the processing qualification rate.

[0198] When the two tube bodies 224 reach the expanded state, the center point L of the end face of the first hinge 921 is above the center point M of the end face of the second hinge 922, and the center point N of the end face of the third hinge 923 is above the center point M of the end face of the second hinge 922.

[0199] The driving buckle 500 moves backward, the buckle 500 moves forward through the connecting rod 400, the connecting rod 400 drives the transmission sleeve 710 to move forward, the transmission sleeve 710 pushes the outer tube 100 to move forward through the buffer spring 720, until the two tube bodies 224 reach the folded state, at this time, the center point L of the end face of the first hinge 921, the center point M of the end face of the second hinge 922 and the center point N of the end face of the third hinge 923 are on a straight line, and the front end of the outer tube 100 contacts the flange 227; when the outer tube 100 cannot move forward, the pressure on the outer tube 100 acts on the buffer spring 720, the buffer spring 720 pushes the transmission sleeve 710 to move backward, so that the second end of the connecting rod 400 moves upward, so that the center point M of the end face of the second hinge 922 moves above the line connecting the center point L of the end face of the first hinge 921 and the center point N of the end face of the third hinge 923, until the buckle limiting piece 620 blocks the rotation of the buckle 500, the connecting rod 400 stops moving. Therefore, after the two tube bodies 224 reach the folded state, the buckle 500 can automatically move to the locked position blocked by the buckle limiting piece 620, so that the holder can realize one-key self-locking of the buckle 500, and the buckle 500 one-key releases the intervertebral fusion cage 10. The buffer spring 720 provides continuous buffer thrust and a certain size tolerance, reducing the processing difficulty.

[0200] In the embodiment, the first hinge 921, the second hinge 922 and the third hinge 923 are all pins.

[0201] The limiting sliding piece 730 penetrates into the guide through hole 711, so that the transmission sleeve 710 is kept moving in the forward and backward direction of the outer tube 100, preventing the transmission sleeve 710 from rotating relative to the outer tube 100. In the embodiment, the front end of the guide through hole 711 is provided with an opening, so that the stroke of the backward movement of the transmission sleeve 710 is larger.

[0202] As Figure 19 , Figure 24 and Figure 29As shown, the buckle member 500 is provided with a protruding member 510; when the buckle limiting member 620 abuts against the protruding member 510, the two tube bodies 224 are in the expanded state, and the force of the buckle limiting member 620 against the protruding member 510 makes the relative position of the buckle limiting member 620 and the buckle member 500 stable. In this embodiment, when the two tube bodies 224 are in the expanded state, the holder is loaded into and separated from the intervertebral fusion cage 10, and the buckle handle 530 of the buckle member 500 abuts against the transmission sleeve 710, so that the position of the buckle member 500 is stable.

[0203] As shown in Figure 8 , Figure 11 and Figure 33 , the outer tube member 100 is provided with a fixed groove 140, and the fixed portion elastic snap ring 740 is clamped between the fixed groove 140 and the inner cavity of the transmission sleeve 710. The arrangement of the fixed portion elastic snap ring 740 can prevent the transmission sleeve 710 from moving backward and disengaging from the outer tube member 100. The limiting sliding member 730 is located behind the fixed portion elastic snap ring 740, and the inner side surface of the front end of the transmission sleeve 710 is provided with a blocking portion 712, which prevents the fixed portion elastic snap ring 740 from moving outward.

[0204] As shown in Figure 8 , Figure 11 , Figure 27 and Figure 33 , the fixed portion elastic snap ring 740 is provided with a fixed portion ring body opening 741, and the rear end of the fixed portion elastic snap ring 740 is provided with a fixed portion ring body guide surface 742; the front end of the blocking portion 712 of the transmission sleeve 710 is provided with a mounting inclined surface 713, and the transmission sleeve 710 is provided with a sleeve portion dismounting hole 714 which communicates with the inner cavity of the transmission sleeve 710 and contacts with the fixed portion elastic snap ring 740; when the fixed portion elastic snap ring 740 is sleeved in the fixed groove 140, the mounting inclined surface 713 of the transmission sleeve 710 can move forward along the ring body guide surface 742; when the mounting inclined surface 713 of the transmission sleeve 710 moves forward along the ring body guide surface 742 until the blocking portion 712 moves to the front of the fixed portion elastic snap ring 740, the fixed portion elastic snap ring 740 is clamped between the fixed groove 140 and the inner cavity of the transmission sleeve 710; by pressing the fixed portion elastic snap ring 740 through the sleeve portion dismounting hole 714, the fixed portion elastic snap ring 740 can be contracted, and the transmission sleeve 710 can be dismounted from the outer tube member 100.

[0205] In some alternative embodiments, as shown in Figure 43 , in order to make the structure more compact, the fixed portion elastic snap ring 740 is not sleeved on the outer tube member 100, and the guide through hole 711 is a circumferentially closed hole.

[0206] As in some alternative embodiments, the transmission sleeve 710 is provided with a plurality of cleaning holes 715, facilitating the cleaning of the transmission sleeve 710 before its reuse.

[0207] As Figure 1 , Figure 9 , Figure 14 , Figures 25 to 27 , Figures 30 to 32 As shown in the drawings, the front side wall of the sliding sleeve 610 is provided with an entry hole 611 for the insertion of the inner tube 200; the sliding sleeve 610 is internally provided with a drive button 630, which is movable in the up-down direction of the sliding sleeve 610; a support spring 640 is provided between the bottom surface of the drive button 630 and the inner cavity of the sliding sleeve 610; the drive button 630 is provided with a button through hole 631 for the inner tube 200 to pass through, and the button through hole 631 is provided with a blocking piece 632, the front side of the blocking piece 632 is provided with a tube guiding part 633.

[0208] The rear end of the inner tube body 210 is connected to a lead-in tube 230, which has a structure in which the cross-sectional dimension gradually decreases from front to rear; the lead-in tube 230 is movable along the tube guiding part 633; a clamping groove 211 is provided along the outer peripheral surface of the rear end of the inner tube body 210, and the clamping groove 211 is for the clamping of the blocking piece 632. The rear end of the lead-in tube 230 of the inner tube 200 is connected to an extension tube, which passes out of the sliding sleeve 610.

[0209] When the inner tube 200 passes through the entry hole 611 and enters the button through hole 631 of the drive button 630, the lead-in tube 230 of the inner tube 200 moves along the tube guiding part 633, the inner tube 200 pushes the drive button 630 to move downward, the support spring 640 is compressed, the lead-in tube 230 passes through the button through hole 631, and when the blocking piece 632 is clamped in the clamping groove 211 of the inner tube body 210, the inner tube body 210 is clamped with the drive button 630. When the drive button 630 is pressed downward, the blocking piece 632 is removed from the clamping groove 211 of the inner tube body 210, and then the inner tube 200 can be removed from the sliding sleeve 610. This structure makes the inner tube 200 and the sliding sleeve 610 a detachable connection structure, and is convenient to operate.

[0210] In some embodiments, in order to facilitate processing, the lead-in tube 230 is a conical structure; the tube guiding part 633 is an arc surface corresponding to the structure of the lead-in tube 230. The drive button 630 is provided with a support hole 634 above the button through hole 631, a support member 635 is installed in the inner cavity of the sliding sleeve 610, and the support member 635 passes through the support hole 634, the support member 635 can prevent the drive button 630 from being separated from the sliding sleeve 610.

[0211] As Figure 9 , Figure 14 , Figure 34 andFigure 42 As shown in the drawings, along the circumference of the inner tube 200, a plurality of tube grooves 241 are arranged on the outer side of the inner tube 200;

[0212] The handle 300 is connected with the inner tube 200 through a conversion mechanism; the conversion mechanism comprises:

[0213] A sleeve 810 is provided for the inner tube 200 to be inserted into; along the circumference of the sleeve 810, a plurality of support grooves 811 are arranged on the outer side of the sleeve 810, the bottom surface of each support groove 811 is provided with a bottom hole 812 which is in communication with the inner cavity of the sleeve 810, and each support groove 811 internally places a conversion body 820; the outer side of the sleeve 810 is further provided with a positioning member 813;

[0214] A positioning spring 830 is sleeved on the sleeve 810;

[0215] A sliding sleeve 840 is sleeved on the sleeve 810, the rear end surface of the sliding sleeve 840 is supported by the positioning spring 830, and the positioning spring 830 is between the rear end surface of the sliding sleeve 840 and the positioning member 813; the sliding sleeve 840 is movable along the front-rear direction of the sleeve 810; the inner wall of the sliding sleeve 840 is provided with a pressing member 841, and the front side of the pressing member 841 is provided with a conversion guide part 842; the pressing member 841 can press against all the conversion bodies 820, so that each conversion body 820 passes through the bottom hole 812 and extends into the tube groove 241; the sliding sleeve 840 is moved backward, and the sleeve 810 is rotated, the conversion body 820 is moved out of the tube groove 241, and the conversion body 820 moves along the conversion guide part 842.

[0216] The sleeve 810 can be rotated relative to the inner tube 200, and at this time, the inner tube 200 can also be detached from the sleeve 810; when the sleeve 810 is rotated and the conversion body 820 can be aligned with other tube grooves 241, the sliding sleeve 840 is released, the restoring force of the positioning spring 830 pushes the sliding sleeve 840 to move forward, and the conversion body 820 enters other tube grooves 241. By rotating the sleeve 810, the position of the handle 300 relative to the inner tube 200 can be adjusted, which facilitates the adjustment of the angle of the handle 300 during the operation, which can avoid the handle 300 from blocking the view of medical staff and other instruments. The positioning spring 830 is a wave spring and plays a buffering role.

[0217] In the embodiment, the conversion body 820 is a ball, and the ball can be a steel ball. The support groove 811 is a ball groove, and the tube groove 241 is an arc-shaped groove. Through the movement of the sliding sleeve 840, the movement of the conversion body 820 is controlled, and the adjustment of the rotation direction of the handle 300 is realized.

[0218] The outer side of the sleeve 810 is provided with a barrel mounting groove 814, and the barrel elastic snap ring 850 is clamped between the barrel mounting groove 814 and the inner cavity of the sliding sleeve 840. The barrel elastic snap ring 850 is arranged to prevent the sliding sleeve 840 from moving backward and disengaging from the sleeve 810.

[0219] As shown in Figure 9 , Figure 14 , Figure 34 and Figure 42 , the outer side of the sleeve 810 is provided with a barrel guide groove 815, and the inner wall of the sliding sleeve 840 is provided with a sleeve guide 843, which is inserted into the barrel guide groove 815 to prevent the sliding sleeve 840 from rotating relative to the sleeve 810. The front end of the barrel guide groove 815 is in communication with the outside to increase the movement stroke of the sleeve guide 843.

[0220] In some alternative embodiments, as shown in Figure 44 and Figure 45 , in order to make the structure more compact, the outer side of the sleeve 810 is not provided with the barrel elastic snap ring 850, and the barrel guide groove 815 is a structure with closed groove side walls.

[0221] The inner wall of the sleeve 810 is provided with a barrel positioning groove 816, and the outer side of the pick rod 910 for inserting the inner tube 200 is provided with a rod positioning groove 911. The positioning ring 930 is sleeved on the pick rod 910, and the positioning ring 930 is clamped between the rod positioning groove 911 and the barrel positioning groove 816. The positioning ring 930 is arranged to fix the position of the pick rod 910 and prevent the pick rod 910 from moving axially relative to the inner tube 200. When the intervertebral fusion cage 10 is a expandable structure, the rear end of the intervertebral fusion cage 10 is provided with a plug-in hole 13, which is a keyhole structure. The front end of the pick rod 910 is a keyhole structure in cross section, the plug-in hole 13 is provided for the front end of the pick rod 910 to be inserted, and the plug-in hole 13 is plugged with the front end of the pick rod 910. After the front end of the pick rod 910 is plugged with the plug-in hole 13 of the rear end of the intervertebral fusion cage 10, the pick rod 910 is rotated to drive the intervertebral fusion cage 10 to expand. In a conventional cage (non-expandable cage), the mechanism of the pick rod is not involved.

[0222] The sleeve 810 is provided with a striking disc 818, which is a disc. Striking the striking disc 818 can move the holder forward, and the intervertebral fusion cage 10 held by the holder can enter the intervertebral space. The striking disc 818 can be struck with a hand hammer, so that the expandable intervertebral fusion cage 10 can be normally driven into the intervertebral space without hard insertion, avoiding the instability caused by hard insertion of the existing handheld holder, and avoiding the risk of the existing handheld holder being easily inserted too deep.

[0223] AsFigure 1 and Figure 28 As shown in the figure, the number of connecting rod members 400 is two, the two connecting rod members 400 are oppositely arranged, and the opposite sides of the two connecting rod members 400 are provided with limiting protrusions 410. The limiting protrusions 410 limit the rotation angle of the connecting rod member 400 relative to the transmission sleeve 710.

[0224] The outer side of the outer tube member 100 is also provided with an end plate direction marking part 150, which extends along the front-rear direction of the outer tube member 100, and is used to confirm the position of the intervertebral fusion cage in the body. In this embodiment, the end plate direction marking part 150 is an end plate marking line.

[0225] As shown in the figure, Figure 1 , Figure 2 , Figure 14 , Figure 17 and Figure 21 When the holder of the intervertebral fusion cage of the present application is used, the driving buckle member 500 is rotated, so that the buckle member 500 drives the outer tube member 100 to move forward through the connecting rod member 400, the two tube bodies 224 are folded, the two hook head structures can be respectively inserted into the two notches 12, and the inner wall of the outer tube member 100 presses the two tube bodies 224, and the two tube bodies 224 clamp the intervertebral fusion cage 10; then the holder clamping the intervertebral fusion cage is sent into the intervertebral space of the human body through the working channel tube, and the impact disc 818 is knocked, so that the intervertebral fusion cage 10 reaches the preset position, the screwdriver rod 910 in the holder is inserted into the plug-in hole 13 at the rear end of the intervertebral fusion cage 10, the screwdriver rod 910 is rotated, and the intervertebral fusion cage 10 is driven to distract; then the buckle member 500 is rotated, so that the buckle member 500 drives the outer tube member 100 to move backward through the connecting rod member 400, the two tube bodies 224 are distracted, the holder is separated from the intervertebral fusion cage 10, and the holder is removed through the working channel tube.

[0226] The outer tube member 100, the inner tube member 200, the transmission sleeve 710 and the conversion mechanism of the holder can be disassembled, which is convenient for cleaning and disinfection.

[0227] The two tube bodies 224 of the holder can be infinitely distracted or folded. After the distractible intervertebral fusion cage 10 is distracted to an appropriate height, the holder can be easily separated from the distractible intervertebral fusion cage 10. The holder is easy to operate, convenient to clean, durable and reliable.

[0228] The present application is a holder which can hold and take both conventional intervertebral fusion cages and distractible intervertebral fusion cages, and can be used for minimally invasive surgery and open surgery.

[0229] ​​The above embodiments are only illustrative of the principles of the present application and its efficacy, and are not intended to limit the present application. Any modification or change made by any person skilled in the art without departing from the spirit and scope of the present application shall be covered by the claims of the present application.

Claims

1. A holder for an intervertebral fusion cage, characterized in that: include: Outer pipe (100); An inner tube member (200) is inserted into the outer tube member (100); the inner tube member (200) comprises an inner tube body (210) and a clamping tube (220) connected to the front end of the inner tube body (210); a separation groove (223) is provided at the front end of the clamping tube (220), and the separation groove (223) separates the clamping tube (220) into two tube bodies (224) with symmetrical structures; A holding piece (226) is provided at the front end of each tube (224); A handle (300) connected to the inner tube (200); a connecting rod (400), wherein a first end of the connecting rod (400) is connected to the outer tube (100) via a first hinge (921); and a pull-button member (500) connected to the inner tube body via a third hinge member (923); and a second end of the connecting rod member (400) connected to the pull-button member (500) via a second hinge member (922); The pull-button member (500) can drive the outer tube member (100) to move along the front-rear direction of the inner tube member (200) through the connecting rod member (400); when the outer tube member (100) moves forward and the inner wall of the outer tube member (100) presses the two tube bodies (224), the two tube bodies (224) are in a closed state; when the outer tube member (100) moves backward and the inner wall of the outer tube member (100) separates from the two tube bodies (224), the two tube bodies (224) are in an open state; The pull-button member (500) is mounted on the inner tube body (210) via a sliding sleeve (610), and a pull-button limiting member (620) is provided on the sliding sleeve (610); the pull-button member (500) comprises a pull-button body (520) and a pull-button handle (530) connected to the pull-button body (520), and the pull-button body (520) is movably connected to the sliding sleeve (610); a recessed groove (540) is provided at the connection between the pull-button body (520) and the pull-button handle (530), and when the pull-button limiting member (620) blocks the pull-button member (500) from rotating, the pull-button limiting member (620) is inserted into the recessed groove (540), and the two tube bodies (224) are in a closed state.

2. The intervertebral fusion cage holder according to claim 1, characterized in that: The front end of the clamping tube (220) is provided with an inner tube tapered surface (225), and the size of the cross section of the inner tube tapered surface (225) decreases from front to back; the front end of the inner wall of the outer tube member (100) is provided with an outer tube tapered portion (130), and the size of the cross section of the outer tube tapered portion (130) decreases from front to back; the outer tube tapered portion (130) can press the inner tube tapered surface (225).

3. The intervertebral fusion cage holder according to claim 1 or 2, characterized in that: An expansion driving member (110) is provided inside the outer tube (100); A trumpet-shaped chute (222) is provided on the outer surface of the clamping tube (220) for the expansion drive member (110) to be inserted, and the trumpet-shaped chute (222) extends along the front-to-back direction of the clamping tube (220); the cross-sectional size of the trumpet-shaped chute (222) decreases from front to back; the separation groove (223) is connected to the trumpet-shaped chute (222); when the expansion drive member (110) moves to the front end of the trumpet-shaped chute (222), the tube body (224) is in a closed state; when the expansion drive member (110) moves to the rear end of the trumpet-shaped chute (222), the two tube bodies (224) are in an expanded state.

4. The intervertebral fusion cage holder according to claim 3, characterized in that: An expansion guide (120) is provided inside the outer tube (100); a tube guide groove (221) for inserting the expansion guide (120) is provided on the outer side surface of the clamping tube (220), and the tube guide groove (221) extends along the front-to-back direction of the clamping tube (220).

5. The intervertebral fusion cage holder according to claim 1, characterized in that: The two oppositely disposed side surfaces of the intervertebral fusion cage (10) are both provided with receiving portions (101), and the holding pieces (226) of the two tube bodies (224) can clamp the two receiving portions (101).

6. The intervertebral fusion cage holder according to claim 1, characterized in that: A protruding piece (510) is provided on the pull-button piece (500); when the pull-button limiting piece (620) abuts against the protruding piece (510), the two tube bodies (224) are in an open state.

7. The intervertebral fusion cage holder according to claim 1, characterized in that: The outer tube member (100) is connected to the connecting rod member (400) via a transmission sleeve (710), the transmission sleeve (710) is sleeved on the outer tube member (100), and the transmission sleeve (710) is provided with a guide through hole (711), and the guide through hole (711) extends along the front-back direction of the transmission sleeve (710); a limiting sliding member (730) is connected to the outer tube member (100), and the limiting sliding member (730) penetrates into the guide through hole (711).

8. The intervertebral fusion cage holder according to claim 7, characterized in that: A buffer spring (720) is provided inside the transmission sleeve (710), and the buffer spring (720) is located between the rear end of the outer tube (100) and the transmission sleeve (710).

9. The intervertebral fusion cage holder according to claim 7, characterized in that: The outer tube (100) is provided with a fixing groove (140), and the fixing portion elastic snap ring (740) is clamped between the fixing groove (140) and the inner cavity of the transmission sleeve (710).

10. The intervertebral fusion cage holder according to claim 1, characterized in that: The front side wall of the sliding sleeve (610) is provided with an inlet hole (611) for inserting the inner tube (200); a driving button (630) is installed inside the sliding sleeve (610), and the driving button (630) can move in the up and down directions of the sliding sleeve (610); a supporting spring (640) is provided between the bottom surface of the driving button (630) and the inner cavity of the sliding sleeve (610); the driving button (630) is provided with a button through hole (631) for the inner tube (200) to penetrate, and a blocking member (632) is provided on the button through hole (631), and a tube guide portion (633) is provided on the front side of the blocking member (632); The rear end of the inner tube body (210) is connected to an introduction tube (230), and the introduction tube (230) is a structure in which the cross-sectional dimension gradually decreases from the front to the rear, and the introduction tube (230) can move along the pipe guide portion (633); a clamping groove (211) is provided along the outer peripheral surface of the rear end of the inner tube body (210), and the blocking member (632) is clamped into the clamping groove (211).

11. The intervertebral fusion cage holder according to claim 1, characterized in that: A plurality of pipe grooves (241) are provided on the outer surface of the inner pipe (200) along the circumference of the inner pipe (200); The handle (300) is connected to the inner tube (200) via a conversion mechanism; the conversion mechanism comprises: A sleeve (810) is provided for inserting the inner tube (200); a plurality of supporting grooves (811) are provided on the outer surface of the sleeve (810) along the circumference of the sleeve (810); a bottom surface of each supporting groove (811) is provided with a bottom through hole (812) communicating with the inner cavity of the sleeve (810); and a converter (820) is placed inside each supporting groove (811); A positioning spring (830) is sleeved on the sleeve (810); The sliding sleeve (840) is sleeved on the sleeve (810), and the positioning spring (830) supports the rear end face of the sliding sleeve (840); a pressing piece (841) is provided on the inner wall of the sliding sleeve (840), and a conversion guide (842) is provided on the front side of the pressing piece (841); the pressing piece (841) can support all the conversion bodies (820), so that each conversion body (820) passes through the groove bottom through hole (812), and the conversion body (820) extends into the pipe groove (241); the sliding sleeve (840) is moved backward and the sleeve (810) is rotated, so that the conversion body (820) is removed from the pipe groove (241), and the conversion body (820) moves along the conversion guide (842).

12. The intervertebral fusion cage holder according to claim 11, characterized in that: A cylindrical mounting groove (814) is provided on the outer side surface of the sleeve (810), and a cylindrical elastic clamping ring (850) is clamped between the cylindrical mounting groove and the inner cavity of the sliding sleeve (840).

13. The intervertebral fusion cage holder according to claim 11, characterized in that: A barrel guide groove (815) is provided on the outer surface of the sleeve (810); a sleeve guide member (843) is provided on the inner wall of the sliding sleeve (840), and the sleeve guide member (843) is inserted into the barrel guide groove (815).

14. The intervertebral fusion cage holder according to claim 11, characterized in that: The inner wall of the sleeve (810) is provided with a barrel positioning groove (816); the outer surface of a screwdriver rod (910) for inserting the inner tube (200) is provided with a rod positioning groove (911); a positioning collar (930) is sleeved on the screwdriver rod (910), and the positioning collar (930) is clamped between the rod positioning groove (911) and the barrel positioning groove (816).

15. The intervertebral fusion cage holder according to claim 1, characterized in that: There are two connecting rods (400), and the two connecting rods (400) are arranged opposite to each other. Position limiting protrusions (410) are provided on opposite sides of the two connecting rods (400).

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