CN113509297B

CN113509297B - Combined osseointegration system

Info

Publication number: CN113509297B
Application number: CN202110340961.7A
Authority: CN
Inventors: 陈山林; 刘畅; 李岩; 李海元; 罗爱民; 黄馨; 李东贤; 秦保祯
Original assignee: Beijing Zhong An Tai Hua Science & Technology Co ltd; Beijing Jishuitan Hospital
Current assignee: Beijing Zhong An Tai Hua Science & Technology Co ltd; Beijing Jishuitan Hospital
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2024-02-27
Anticipated expiration: 2041-03-30
Also published as: CN113509297A

Abstract

The application relates to a modular osseointegration system, including planting body, connector and meaning indicate, the one end of planting body is the installation end, and the connector includes connector and connection parent-metal, and connector fixed mounting is in the installation end department of planting body, and connection parent-metal fixed mounting indicates on the meaning, and connector and connection parent-metal detachable fixed connection are in the same place. The implant embedded in the human body is fixed firmly, the connecting mode of the artificial finger and the human body is improved, the wearing and the dismounting of the artificial finger are facilitated, the wearing compliance of the Gao Yi finger is improved, and the service life of the artificial finger is prolonged.

Description

Combined osseointegration system

Technical Field

The present application relates to the field of medical prosthetic devices, and more particularly to a modular osseointegration system.

Background

An implanted osseointegrative prosthesis, also known as a bone implant prosthesis deployment technique, is a technique that provides an amputee with a prosthetic implant integrated with the patient's bone, i.e. an implant with direct contact between the living bone and the implant bearing surface. The osseointegration technology can assist the implant to be combined with bone more firmly, remarkably improves the success rate of the implant, and provides better life quality for the prosthesis wearer.

At present, if a patient with finger deficiency is treated by adopting a finger meaning technology, the finger meaning and human body are connected in a silica gel sleeve type mode, so that the problem that adverse reactions such as skin reactions are easy to occur at the finger stump is caused, sensory signal feedback at the finger tip cannot be obtained through the finger meaning, the appearance of the finger meaning is only improved, and the normal finger functionality is not provided.

In view of the above-mentioned problems, the inventors believe that a completely new way of wearing the artificial finger can be achieved using the osseointegrated prosthetic technique. Good bone ingrowth is obtained between the implant and the bone residues of the finger, and the implant has enough stability. The implant body is connected with the sense finger through a connector, so that the sense finger obtains partial sensory feedback through the sensory conduction path in the bone.

Disclosure of Invention

In order to improve the sense finger fixation mode, the Gao Yi finger is convenient to wear, and the application provides a combined osseointegration system.

The combined osseointegration system provided by the application adopts the following technical scheme:

the utility model provides a modular osseointegration system, includes planting body, connector and meaning indicate, and the one end of planting body is the installation end, and the connector includes connector and connection parent component, and connector fixed mounting is in the installation end department of planting body, and connection parent component fixed mounting indicates on the meaning, and connector and connection parent component detachable fixed connection are in the same place.

By adopting the technical scheme, the implant is used for being implanted into a patient, when the implant is just started, the artificial finger is not installed, the human tissue adjacent to the implant heals, after the implant is kept stable, the connecting sub-piece and the artificial finger provided with the connecting parent piece are installed, and therefore the implant and the artificial finger are connected. Or the connecting sub-piece is arranged on the implant in advance, and the artificial finger provided with the connecting parent piece is arranged after healing. Since the implant is buried in the bone marrow cavity, a part of the sensory conduction function can be obtained by the artificial finger to the connector and the implant, and thus the wearing compliance of the Gao Yi finger can be improved. And because the implant is buried in the human body, and the volume of the connector piece is smaller, the connector piece is not easy to collide, so that the implant buried in the human body is not easy to have the phenomenon of position deviation, and further human tissues near the implant are not easy to have the phenomenon of cracking or even infection, thereby being beneficial to postoperative recovery.

Optionally, the lateral surface of the implant is provided with a planting thread, the diameter of the implant far away from the installation end is not greater than the diameter of the implant near the installation end, a gap is arranged between the planting thread and the installation end, and the surface of the implant at the gap is smooth.

By adopting the technical scheme, the screw thread on the outer side surface of the implant can facilitate the implant to be implanted into a human body, and is beneficial to the healing of peripheral tissues. The one end that the installation end was kept away from to the implant can set to the less structure of diameter, when being convenient for implant, is difficult for appearing leading to the phenomenon that narrow portion cortex is too thin because of the implant diameter is too big, has reduced the risk of fracture. And after the part close to the mounting end is subjected to smooth treatment, soft tissue irritation can be reduced, and postoperative recovery is facilitated.

Optionally, a guide groove is formed in the end face of the mounting end, a positioning groove is formed in the bottom face of the guide groove, a threaded hole is formed in the bottom face of the positioning groove, and the diameter of one end, away from the positioning groove, of the guide groove is not smaller than that of the other end of the guide groove; the connecting sub-piece comprises a connecting part and a positioning part fixedly arranged on the connecting part, the positioning part can be embedded in the positioning groove, the connecting sub-piece can not rotate along the axis of the connecting part, a countersunk hole penetrating the connecting sub-piece is formed in the end face, far away from the positioning part, of the connecting part, countersunk screws penetrate through the countersunk hole, and the countersunk screws are arranged in the threaded holes.

Through adopting above-mentioned technical scheme, after the locating part in the connector piece inlays and establishes in the constant head tank to make the connector piece can not rotate along self axis, and wear to establish countersunk head screw in the countersink can restrict the connector piece, make the connector piece can not remove along self axis, thereby fix the position of connector piece. The diameter of one end of the guide groove far away from the positioning groove is larger, so that the guide groove can guide, and the positioning part is easier to embed in the positioning groove.

Optionally, a sub-connection mechanism is arranged at one end of the connection sub-piece far away from the implant, and a female connection mechanism which is matched with the sub-connection mechanism and fixes the connection female piece is arranged on the connection female piece.

Through adopting above-mentioned technical scheme, link together through son coupling mechanism and female coupling mechanism between connecting son spare and the connection female spare.

Optionally, the son coupling mechanism is the son coupling screw thread of setting on the counter bore inside wall, and son coupling screw thread sets up the one end department of keeping away from the installation end at the counter bore, and female coupling mechanism is the female spliced pole of fixed setting on connecting female spare, and female spliced pole is installed in the counter bore and with son coupling screw thread cooperation.

Through adopting above-mentioned technical scheme, son coupling mechanism is the screw thread, and female coupling mechanism is the screw thread post with screw thread complex, can be together with the simple installation of connection son spare and connection mother spare through the screw thread.

Optionally, the connecting female part is fixedly provided with a connecting block, the end face of the artificial finger is provided with a connecting groove for accommodating the connecting block, the connecting female part and the artificial finger are provided with a positioning mechanism, and the positioning mechanism enables the connecting block to be fixedly kept relative to the connecting groove when the connecting block is embedded in the connecting groove.

Through adopting above-mentioned technical scheme, the connecting block of fixed setting on the connection female spare can inlay and establish in the spread groove on the meaning indicates, later through positioning mechanism, makes the connecting block keep fixed relative to the spread groove to make the meaning indicate to keep fixed relative to the connection female spare, can indicate fixed mounting with the meaning on the connector.

Optionally, the positioning mechanism includes the regulation logical groove of seting up on the spread groove lateral wall, adjusts the terminal surface coincidence that leads to one side and meaning of groove and indicates, and two sides adjacent with this side are the regulation limit, and the fixed regulating plate that sets up along the regulation limit that is provided with on the lateral surface of meaning indicates, and two regulating plates are worn to establish by same locking screw.

Through adopting above-mentioned technical scheme, wear to establish two regulating plates simultaneously through locking screw, later install the nut, can extrude two regulating plates. When the adjusting plates are mutually closed, the two adjusting edges of the adjusting through groove are driven to be mutually closed, so that the connecting groove clamps the connecting block, thereby fixing the position of the artificial finger and fixedly mounting the artificial finger on the connecting body.

Optionally, the connecting block is inlayed and is established and can not rotate along self axis when the spread groove, has seted up the jackscrew hole on inlaying the lateral wall of establishing the groove, wears to be equipped with in the jackscrew hole and to connect with the connecting block butt and make the connecting block can not follow the fixed jackscrew of sliding out in the spread groove.

Through adopting above-mentioned technical scheme, unable rotation when the connecting block inlays to be established in the spread groove, and fixed jackscrew restriction connecting block makes the connecting block can not the roll-off spread groove to can fix the position of meaning finger, make meaning finger fixed mounting on the connector.

Optionally, the connecting parent component is further fixedly provided with a protecting handle, one end of the protecting handle is connected with the connecting parent component, the connecting block is fixedly arranged at the other end of the protecting handle, and one end, connected with the connecting block, of the protecting handle is arranged to be a foldable part.

Through adopting above-mentioned technical scheme, the structure that the one end diameter that is close to the connecting block is less than the other end diameter can be set to the protection handle to make the artificial limb when receiving great external force, easy broken portion breaks off more easily. The artificial finger is not easy to drive the implant to move, so that the probability of implant damage and fracture is reduced.

Optionally, the secondary connection mechanism is a secondary engagement tooth arranged at the end face of the connection secondary member, the end face of the secondary connection mechanism close to the sense finger is provided with a primary engagement tooth matched with the secondary engagement tooth, the end face of the connection primary member is provided with a primary connection through groove, the section of the primary connection through groove is in a strip shape, one end of the strip shape is overlapped with the side face of the connection primary member, the inner side wall of the primary connection through groove is fixedly provided with two mutually parallel limit convex strips, the limit convex strips are not parallel to the axis of the connection through groove, and the secondary connection mechanism and the sense finger are provided with limit grooves; the child connecting mechanism and the artificial finger are engaged and simultaneously embedded in the female connecting through groove, and the two limiting grooves are embedded with limiting convex strips.

By adopting the technical scheme, after the child engagement teeth and the mother engagement teeth are engaged with each other, the sense finger arranged on the connecting sub-piece cannot rotate. After the connecting parent component is arranged on the connecting child component and the sense finger, the child engagement teeth on the connecting child component and the parent engagement teeth on the sense finger can not be separated from each other under the clamping of the limiting convex strips, so that the sense finger is fixedly arranged on the connecting body.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the wearing mode of the artificial finger is improved, the wearing mode is changed from external wearing of a silica gel sleeve to intra-osseous implant wearing, the wearing is more comfortable, and the artificial finger has partial sensory conduction function.

2. The implant embedded in the human body is not easy to have the phenomenon of position deviation, so that human tissues near the implant are not easy to crack or even infect, and the postoperative recovery is facilitated;

3. the probability of implant damage and fracture phenomenon is reduced.

Drawings

Fig. 1 is an installation schematic of the first embodiment.

Fig. 2 is a schematic structural diagram of the first embodiment.

Fig. 3 is a schematic view showing the installation of the implant and the connection body according to the first embodiment.

Fig. 4 is a schematic diagram of the attachment of the connector and the finger of the first embodiment.

Fig. 5 is a schematic structural diagram of the second embodiment.

Fig. 6 is a schematic diagram of the attachment of the connector and the finger of the second embodiment.

Fig. 7 is a schematic structural view of the third embodiment.

Fig. 8 is a schematic diagram of the attachment of the connector and the finger of the third embodiment.

Fig. 9 is a schematic structural view of the fourth embodiment.

Fig. 10 is a schematic diagram of the attachment of the connector and the finger of the fourth embodiment.

Reference numerals illustrate: 1. an implant; 11. a tail section; 12. a middle section; 13. a head section; 14. a mounting end; 15. a guide groove; 16. a positioning groove; 17. a threaded hole; 18. a cutting edge; 2. a connecting body; 21. a connector piece; 211. a connection part; 212. a guide part; 213. a positioning part; 214. a countersunk hole; 215. countersunk head screws; 22. connecting a parent piece; 221. a female connection column; 222. a protective handle; 223. a connecting block; 3. meaning; 31. a connecting groove; 32. regulating the through groove; 33. an adjusting plate; 34. a locking screw; 4. a first block; 41. a second block; 42. a locking clamping groove; 43. a first groove; 44. a second groove; 45. a top thread hole; 46. fixing a jackscrew; 5. a child bite tooth; 51. female engagement teeth; 52. the female connection through groove; 53. limit raised strips; 54. a limit groove; 55. a limit convex edge; 56. a smooth section; 6. a head bolt.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-10.

The embodiment of the application discloses a combined osseointegration system.

Example 1

Referring to fig. 1 and 2, the combined osseointegration system comprises an implant 1, a connecting body 2 and a sense finger 3; the implant 1 is buried in a human body, the connector 2 is arranged on the implant 1, and the artificial finger 3 is arranged on the implant 1. The connector 2 comprises a connector piece 21 and a connector female piece 22, wherein the connector piece 21 is connected with the implant 1, and the connector female piece 22 is connected with the artificial finger 3.

Referring to fig. 2 and 3, the implant 1 has a cylindrical shape, and one end of the implant 1 is a mounting end 14. The implant 1 is divided into three sections in proper order, be afterbody section 11, middle part section 12 and head section 13 in proper order by the installation end 14 to the other end, afterbody section 11 and head section 13 all are round platform form, middle part section 12 is cylindric, the one end that middle part section 12 was kept away from to afterbody section 11 is round platform big one end, the one end that afterbody section 11 is adjacent with middle part section 12, the one end diameter that middle part section 12 and middle part section 12 are adjacent with head section 13 equals, the one end that middle part section 12 was kept away from to head section 13 is round platform little one end, three cutting edges 18 have been offered to equidistant circumference on the lateral surface of head section 13, the resistance when implant 1 can be reduced to cutting edges 18. Planting threads are also arranged on the outer side surface of the implant 1. The head section 13 is arranged in a truncated cone shape, so that implantation is facilitated, and the phenomenon that the cortex of the narrow part is too thin due to the too large diameter of the implant 1 is not easy to occur, and the risk of fracture is reduced. The tail section 11 is arranged in a truncated cone shape, so that the strength of the implant 1 is increased, and the locking force of the implant 1 is increased. The planting threads arranged on the outer side face of the implant 1 can facilitate the implantation of the implant 1 into a human body, and the healing of peripheral tissues is facilitated.

Referring to fig. 2 and 3, a guide groove 15 is formed in an end surface of the mounting end 14 of the implant 1, and a diameter of an end of the guide groove 15 near the mounting end 14 is larger than a diameter of an end far from the mounting end 14. The bottom surface of the guide groove 15 is provided with a positioning groove 16, the positioning groove 16 is hexagonal in shape, and the center of the bottom surface of the positioning groove 16 is provided with a threaded hole 17. The positioning groove 16 having a hexagonal shape can facilitate the use of the connection screwdriver by the doctor to implant the implant 1. The connector sub-member 21 includes a connecting portion 211, a guide portion 212, and a positioning portion 213, which are sequentially connected. The shape of the positioning portion 213 is the same as the shape of the positioning groove 16, so that the positioning portion 213 cannot rotate when being embedded in the positioning groove 16. The shape of the guide part 212 is the same as that of the guide groove 15, so that when the guide part 212 is embedded in the guide groove 15, the connection between the connector piece 21 and the implant 1 is stable, and the loosening phenomenon is not easy to occur. The connection portion 211 is located outside the guide groove 15 for connection with the connection female member 22. A counter bore 214 is formed in the end surface of the connecting portion 211 away from the positioning portion 213, and the counter bore 214 is located at the center of the end surface and penetrates through the connector 21. Countersunk screws 215 are inserted into the countersunk holes 214, and the countersunk screws 215 are simultaneously screwed into the threaded holes 17, so that the connector piece 21 is fixed on the implant 1.

Referring to fig. 3 and 4, the depth of the head of the countersunk hole 214 is greater than the thickness of the head of the countersunk screw 215, so that a gap is formed between the countersunk screw 215 and the opening of the countersunk hole 214 after the countersunk screw 215 is mounted in the countersunk hole 214. Sub-coupling threads as sub-coupling mechanisms are provided on the inner side wall of the counterbore 214. The female connection post 221 as a female connection mechanism is integrally formed on the connection female member 22, and the female connection post 221 is installed in the counter bore 214 and is engaged with the male connection screw, thereby fixedly connecting the connection female member 22 with the connection male member 21. The outer hexagonal structures are cut on the side surfaces of the connection female member 22 and the connection male member 21, so that the doctor can screw the tool conveniently.

Referring to fig. 3 and 4, the connection female member 22 is integrally formed with a protection handle 222, the protection handle 222 is in a shape of a truncated cone, one end of the protection handle 222 close to the connection sub-member 21 is a large-diameter end, a spherical connection block 223 is integrally formed at a small-diameter end of the protection handle 222, the diameter of the connection block 223 is larger than that of the minimum end of the protection handle 222, and the connection part for protecting and connecting the connection block 223 is a frangible part. The end face of the artificial finger 3 is provided with a connecting groove 31, and the connecting block 223 is embedded in the connecting groove 31, so that the direction of the artificial finger 3 can be adjusted at will. An elongated adjusting through groove 32 is formed on the side wall of the connecting groove 31, one end of the adjusting through groove 32 coincides with the end face of the sense finger 3, and two side edges adjacent to the end are called adjusting edges. Two adjusting plates 33 are integrally formed on the outer side face of the finger 3, the adjusting plates 33 are in one-to-one correspondence with the adjusting edges, and the adjusting plates 33 are arranged along the corresponding adjusting edges. Both adjusting plates 33 are penetrated by the same locking screw 34, and a nut may be mounted on the locking screw 34. After people adjust the sense finger 3, the locking screw 34 is rotated to drive the adjusting plates 33 to approach each other, so that the connecting grooves 31 clamp the connecting blocks 223, and the sense finger 3 is kept fixed relative to the connecting female member 22, so that the sense finger 3 can be fixedly mounted on the connecting body 2. When the artificial limb is subjected to larger external force, the easily-broken part is more easily broken. The artificial finger 3 is not easy to drive the implant 1 to move, so that the probability of the occurrence of the phenomena of injury and fracture of the implant 1 is reduced.

The implementation principle of the first embodiment is as follows: when the planting is started, the implant 1 is firstly used for being implanted into a patient, then the sealing cap is installed, so that the human tissues around the implant 1 heal, and the sealing cap is removed after the implant 1 is kept stable. The connector piece 21 can then be mounted on the implant 1 and the finger 3 with the connector female piece 22 mounted on the implant 1.

Since the implant 1 is buried in the bone marrow cavity, the sense finger 3 can obtain a partial sensory conduction function through the connector 2 and the implant 1, and thus wearing compliance of the sense finger 3 can be improved. Because the implant 1 is buried in the human body, and the connector 21 has a smaller volume and is not easy to collide, the implant 1 buried in the human body is not easy to have the phenomenon of position deviation, and further human tissues near the implant 1 are not easy to crack or even infect, thereby being beneficial to postoperative recovery.

Example two

Referring to fig. 5 and 6, the present embodiment is different from the first embodiment in that the connection block 223 is divided into a first block 4 and a second block 41, and the first block 4 is integrally formed on the connection female member 22. The first block 4 is cylindrical in shape and the outer side of the first block 4 is provided with engagement teeth. The second block 41 is integrally formed at one end of the first block 4 away from the connector 21, and a locking slot 42 is formed in the outer side surface of the second block 41, and the locking slot 42 is annular and circumferentially arranged along the outer side surface of the second block 41. The connecting groove 31 is also divided into a first groove 43 and a second groove 44, the first groove 43 is provided on the end face of the finger 3, the second groove 44 is provided on the bottom face of the first groove 43, the cross-sectional shape of the first groove 43 is the same as the cross-sectional shape of the first block 4, and the cross-sectional shape of the second groove 44 is the same as the cross-sectional shape of the second block 41. A top thread hole 45 is formed in the side wall of the second groove 44, a fixed top thread 46 is embedded in the top thread hole 45, and one end of the fixed top thread 46 is embedded in the locking clamping groove.

The implementation principle of the second embodiment is as follows: the first block 4 is restricted by the first groove 43, the connection block 223 is prevented from rotating in the connection groove 31, and the second block 41 is restricted by the fixing jack 46, so that the connection block 223 cannot be taken out from the connection groove 31, and the position of the finger 3 can be fixed, and the finger 3 can be fixedly mounted on the connector 2.

Example III

Referring to fig. 7 and 8, this embodiment is different from the first embodiment in that the countersunk head 214 has a head depth equal to the head thickness of the countersunk head screw 215, the sub-engagement teeth 5 as the sub-connection mechanism are provided on the end surface of the connection sub-member 21 away from the implant 1, and the female engagement teeth 51 engaged with the sub-engagement teeth 5 are provided on the end surface of the sense finger 3 close to the sub-connection mechanism. The connection female member 22 is in a shape of a cake, and a female connection through groove 52 is formed on the end surface of the connection female member 22. The cross section of the female connecting through groove 52 is in a long strip shape, and one end of the female connecting through groove 52 coincides with the side face of the connecting female member 22. The inner side wall of the female connecting through groove 52 is integrally provided with a limit convex strip 53, a group of limit convex strips 53 are respectively arranged at two ends of the connecting through groove, and the limit convex strips 53 are arranged along the edge of the opening of the connecting through groove. Annular limiting grooves 54 are cut on the outer side of the connector piece 21 and on the outer side of the finger 3. The bottom surface of the limiting groove 54 on the connector 21 is configured as an outer hexagonal structure, and when the limiting convex strip 53 is embedded in the limiting groove 54, the limiting convex strip 53 is tightly attached to two opposite sides of the bottom surface of the limiting groove 54. The section of the limiting groove 54 on the artificial finger 3 is in a circular ring shape, when the limiting convex strips 53 are embedded in the limiting groove 54, the limiting convex strips 53 are attached to the bottom surface of the limiting groove 54, the limiting convex strips 53 are integrally formed with limiting convex edges 55, the limiting convex edges 55 are arranged at one end of the female connecting through groove 52, which coincides with the side surface of the connecting female part 22, and the distance between the two limiting convex edges 55 is small Yu Yi, namely the diameter of the bottom surface of the limiting groove 54 on the artificial finger 3.

Referring to fig. 7 and 8, the implant 1 is divided into four sections in order, a smooth section 56, a tail section 11, a middle section 12 and a head section 13 from the mounting end 14 to the other end. The implant threads on the outer side of the implant 1 are provided only on the tail section 11, the middle section 12 and the head section 13. The surface of the implant 1 at the smooth section 56 is provided in a rounded configuration. By rounding the smooth section 56 near the mounting end 14, soft tissue irritation can be reduced, facilitating post-operative recovery.

The implementation principle of the third embodiment is as follows: by attaching the sense finger 3 to the child attachment mechanism, the child engagement teeth 5 and the female engagement teeth 51 are engaged with each other, and the sense finger 3 attached to the attachment sub-member 21 is prevented from rotating. After the connection female member 22 is mounted on the connection sub-member 21 and the sense finger 3, the sub-engagement teeth 5 on the connection sub-member 21 and the female engagement teeth 51 on the sense finger 3 cannot be separated from each other under the clamping of the limit convex strips 53, so that the sense finger 3 is fixedly mounted on the connection body 2. This structure can be fixed the connection parent component 22 on connection child component 21 and meaning finger 3 under the centre gripping of spacing chimb 55 when the dismouting, is difficult to drop.

Example IV

Referring to fig. 9 and 10, this embodiment is different from the second embodiment in that the connection sub-member 21 further includes a head bolt 6, the head bolt 6 is engaged with the sub-connection screw thread on the inner side wall of the counter bore 214, the head of the head bolt 6 is located outside the counter bore 214, and the head diameter of the head bolt 6 is the same as the diameter of the end face of the sense finger 3 close to the implant 1. The child engagement teeth 5 are provided at the end face of the head bolt 6.

The implementation principle of the fourth embodiment is as follows: the child-engaging teeth 5 are provided on the head bolt 6 so that the child-engaging teeth 5 can be replaced after wear without the need to disassemble the connector piece 21.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A modular osseointegration system, characterized by: the artificial finger comprises an implant (1), a connecting body (2) and an artificial finger (3), wherein one end of the implant (1) is a mounting end (14), the connecting body (2) comprises a connecting sub-piece (21) and a connecting parent piece (22), the connecting sub-piece (21) is fixedly arranged at the mounting end (14) of the implant (1), the connecting parent piece (22) is fixedly arranged on the artificial finger (3), and the connecting sub-piece (21) and the connecting parent piece (22) are detachably and fixedly connected together;

a guide groove (15) is formed in the end face of the mounting end (14), a positioning groove (16) is formed in the bottom face of the guide groove (15), a threaded hole (17) is formed in the bottom face of the positioning groove (16), and the diameter of one end, far away from the positioning groove (16), of the guide groove (15) is not smaller than the diameter of the other end of the guide groove (15); the connecting sub-piece (21) comprises a connecting part (211) and a positioning part (213) fixedly arranged on the connecting part (211), the positioning part (213) can be embedded in the positioning groove (16) and enables the connecting sub-piece (21) not to rotate along the axis of the connecting sub-piece, a countersunk hole (214) penetrating the connecting sub-piece (21) is formed in the end face, far away from the positioning part (213), of the connecting part (211), countersunk screws (215) are arranged in the countersunk hole (214) in a penetrating mode, and the countersunk screws (215) are arranged in the threaded holes (17).

2. A modular osseointegration system according to claim 1, wherein: the implant is characterized in that an implant thread is arranged on the outer side face of the implant (1), the diameter of the implant (1) away from the mounting end (14) is not larger than that of the implant close to the mounting end (14), a gap is reserved between the implant thread and the mounting end (14), and the surface of the implant (1) at the gap is of a smooth structure.

3. A modular osseointegration system according to claim 1, wherein: one end of the connecting sub-piece (21) far away from the implant (1) is provided with a sub-connecting mechanism, and the connecting parent piece (22) is provided with a parent connecting mechanism which is matched with the sub-connecting mechanism and fixes the connecting parent piece (22).

4. A modular osseointegration system according to claim 3, wherein: the son coupling mechanism is son coupling screw thread on countersink (214) inside wall, son coupling screw thread setting is in countersink (214) one end department of keeping away from installation end (14), and female coupling mechanism is female spliced pole (221) of fixed setting on connecting female spare (22), and female spliced pole (221) are installed in countersink (214) and with son coupling screw thread cooperation.

5. A modular osseointegration system according to claim 4, wherein: connecting block (223) is fixedly arranged on connecting parent component (22), connecting groove (31) for accommodating connecting block (223) is formed in the end face of artificial finger (3), positioning mechanism is arranged on connecting parent component (22) and artificial finger (3), and when connecting block (223) is embedded in connecting groove (31), connecting block (223) is kept fixed relative to connecting groove (31).

6. A modular osseointegration system according to claim 5, wherein: the positioning mechanism comprises an adjusting through groove (32) formed in the side wall of the connecting groove (31), one side of the adjusting through groove (32) is overlapped with the end face of the artificial finger (3), two sides adjacent to the side are adjusting sides, an adjusting plate (33) arranged along the adjusting sides is fixedly arranged on the outer side face of the artificial finger (3), and the two adjusting plates (33) are penetrated by the same locking screw (34).

7. A modular osseointegration system according to claim 5, wherein: the connecting block (223) is embedded in the connecting groove (31) and cannot rotate along the axis of the connecting block, a jackscrew hole (45) is formed in the side wall of the embedded groove, and a fixed jackscrew (46) which is abutted with the connecting block (223) and enables the connecting block (223) not to slide out of the connecting groove (31) is arranged in the jackscrew hole (45) in a penetrating mode.

8. A modular osseointegration system according to claim 5, wherein: the connecting female part (22) is also fixedly provided with a protecting handle (222), one end of the protecting handle (222) is connected with the connecting female part (22), the connecting block (223) is fixedly arranged at the other end of the protecting handle (222), and one end, connected with the connecting block (223), of the protecting handle (222) is arranged as an easy-to-break part.

9. A modular osseointegration system according to claim 4, wherein: the child connecting mechanism is a child engaging tooth (5) arranged at the end face of the connecting child piece (21), a female engaging tooth (51) matched with the child engaging tooth (5) is arranged on the end face, close to the child connecting mechanism, of the artificial finger (3), a female connecting groove (52) is formed in the end face, connected with the female connecting groove (22), of which the cross section is in a strip shape, one end is overlapped with the side face, of the connecting female piece (22), of which the cross section is in a strip shape, two mutually parallel limit raised strips (53) are fixedly arranged on the inner side wall of the female connecting groove (52), the limit raised strips (53) are not parallel to the axis of the connecting groove, and limit grooves (54) are formed in the child connecting mechanism and the artificial finger (3); the son connecting mechanism and the meaning finger (3) are engaged and simultaneously embedded in the mother connecting through groove (52), and the two limiting grooves (54) are embedded with limiting convex strips (53).