CN210749458U

CN210749458U - Bone grafting device

Info

Publication number: CN210749458U
Application number: CN201921359521.0U
Authority: CN
Inventors: 周华
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-06-16
Anticipated expiration: 2029-08-20

Abstract

The utility model belongs to the technical field of medical utensil and specifically relates to a bone grafting device is related to, including syringe, magazine and installation component, the magazine sets up the one end at the syringe leakage fluid dram, and the installation component sets up and is used for installing the magazine on the syringe between magazine and syringe, and inside and the inside intercommunication of magazine of syringe have reached the waste that reduces bone tissue or biomaterial, and the effect that convenient transplanting to bone tissue or biomaterial moreover.

Description

Bone grafting device

Technical Field

The utility model relates to a medical utensil field especially relates to a bone grafting device.

Background

Currently, in the field of orthopedics, bone grafting is mainly performed by transplanting bone tissues or fillers such as biomaterials to the bone defect or bone reinforcing or fusion guiding part of a patient, and in the process of the bone grafting, bone tissues or biomaterials need to be transplanted by a bone grafting device.

Existing surgeons often add bone tissue or biological material to an open container through which the surgeon directly transplants the bone tissue or biological material into the patient's bone defect or bone augmentation or fusion-inducing site during the procedure. However, if the open container is used for transplantation, the amount of bone tissue or biomaterial transplanted cannot be well controlled, and excessive bone tissue or biomaterial transplantation often occurs to the site of bone defect or bone reinforcement or guided fusion of the patient, which results in waste of the bone tissue or biomaterial.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bone grafting device has reached the waste that reduces bone tissue or biomaterial, and the effect that conveniently transplants bone tissue or biomaterial moreover.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the bone grafting device comprises an injector, a feeding hopper and a mounting assembly, wherein the feeding hopper is arranged at one end of a liquid discharge port of the injector, the mounting assembly is arranged between the feeding hopper and the injector and used for mounting the feeding hopper on the injector, and the interior of the injector is communicated with the interior of the feeding hopper.

By adopting the scheme, if a doctor needs to transplant bone tissues or biological materials to the bone defect or the part where the bone is strengthened or the guided fusion is carried out of a patient, the doctor can add the bone tissues or the biological materials into the injector, and because the injector is provided with scales for indicating the volume, the doctor can add a proper amount of bone tissues or biological materials into the injector according to the needs, so that the effects of reducing the waste of the bone tissues or the biological materials and conveniently transplanting the bone tissues or the biological materials are achieved; then the feeding hopper is arranged on the end head of the liquid outlet of the injector by using the mounting assembly; during the transplanting process, a doctor aligns the edge of a port of the feeding hopper, which is far away from the injector, with the bone defect or the part where the bone is strengthened or the part where the guided fusion is carried out of the patient, then presses a piston in the injector, and the piston can push bone tissues or biological materials into the feeding hopper and finally enters the part where the bone defect or the bone is strengthened or the part where the guided fusion is carried out of the patient, so that the treatment process of the patient is completed; and because the part of the patient with bone defect or bone reinforcement or guided fusion is often required to be cleaned before the patient is transplanted, the patient can also use the injector to clean the part and then perform the transplanting process, thereby achieving the effect of expanding the application range of the bone grafting device.

The utility model discloses further set up to, the installation component includes two at least installation poles and tenons, a plurality of installation poles evenly distributed on feeding hopper, the installation pole is to the direction extension that is close to the syringe, the surface looks butt of installation pole and syringe, the cross sectional shape of tenon is right angled triangle, the tenon setting is on the tip that feeding hopper was kept away from to the installation pole, the inside inclined plane of tenon is located the installation pole and is close to one side of syringe, set up the draw-in groove with tenon looks adaptation on the surface of syringe.

By adopting the scheme, when the feeding hopper needs to be installed by using the installation assembly, the feeding hopper is coaxially placed at one end close to the liquid discharge port of the injector, and then the feeding hopper is moved towards the direction close to the injector, because the side surface of the installation rod close to the injector is abutted against the outer surface of the injector, and the inclined surface inside the tenon is positioned at one side of the installation rod close to the injector, the injector can drive the installation rod to bend towards the direction far away from the injector through the tenon in the process of moving the feeding hopper by a doctor; after the feeding hopper drives the mounting rod and the tenon to move for a certain distance, the tenon can enter the clamping groove on the outer surface of the injector, and meanwhile, the mounting rod can restore to the original shape and is abutted against the outer surface of the injector, so that the feeding hopper is mounted; because the feeding hopper is installed on the injector through the installation rod and the tenon, a doctor can disassemble the feeding hopper according to own needs, and during disassembly, the doctor only needs to stir the installation rod to the direction far away from the injector to enable the tenon to be separated from the clamping groove on the injector, and meanwhile, the feeding hopper is moved to the direction far away from the injector. Thus, the effect of facilitating the disassembly and the assembly of the feeding hopper is achieved.

The utility model discloses further set up to, be provided with the spacing ring on the feeding hopper, when the draw-in groove of syringe was inside, the terminal surface looks butt that spacing ring and syringe are close to the feeding hopper.

Through adopting above-mentioned scheme, when the doctor was installed the magazine, the doctor can remove the magazine to the direction that is close to the syringe, and when the magazine removed the terminal surface looks butt of spacing ring and syringe, the doctor can rotate the magazine, and the magazine can drive installation pole and tenon and rotate together, and inside the draw-in groove was entered into to the tenon, just so reached and made the doctor conveniently carry out the effect of installing to the magazine.

The utility model discloses further set up to, feeding hopper's cross sectional shape is the horn mouth form to feeding hopper is along being close to the direction cross sectional area grow gradually of keeping away from the syringe.

By adopting the scheme, the cross section of the feeding hopper is in the shape of the horn mouth, and the cross section area of the feeding hopper is gradually increased along the direction from the close position to the far position of the injector, so that after a doctor pushes bone tissue or biological materials into the feeding hopper by using a piston in the injector, the bone tissue or the biological materials can slide to a required position along the side wall of the feeding hopper, and the bone tissue or the biological materials can be prevented from remaining in the feeding hopper.

The utility model is further arranged in such a way that the end surface of the injector close to the feeding hopper is completely open.

By adopting the scheme, because the bone tissue or the biological material put by the bone grafting device is powdery, the end surface of the injector close to the feeding hopper is completely opened, and the materials can be prevented from being accumulated inside the end of the injector close to the feeding hopper due to the extrusion effect of the piston.

The utility model discloses further set up to, the spacing ring sets up on the inner wall of magazine, and the magazine cup joints on the global of syringe.

By adopting the scheme, the feeding hopper is sleeved on the circumferential surface of the injector, so that the bone tissue or the biological material can be prevented from leaking to the outer side of the bone grafting device to cause the waste of the bone tissue or the biological material in the process of entering the feeding hopper from the injector.

The utility model discloses further set up to, the installation pole is provided with threely altogether, and three installation pole evenly sets up on the terminal surface that hopper is close to the syringe.

By adopting the scheme, the three mounting rods can enable the feeding hopper to be mounted on the injector more stably.

The utility model discloses further set up as, the internal diameter of spacing ring is the same with the internal diameter of syringe.

By adopting the scheme, because the inner diameter of the limiting ring is the same as that of the injector, when a doctor uses the piston in the injector to push the bone tissue or the biological material to move towards the direction close to the feeding hopper, the situation that part of the bone tissue or the biological material is blocked by the limiting ring to cause that part of the bone tissue or the biological material is remained in the feeding hopper can be avoided, and further the waste of the bone tissue or the biological material is caused.

To sum up, the utility model discloses following technological effect has:

1. through setting up the bone grafting device comprising syringe, when needing to implant bone tissue or biomaterial to the patient, the doctor can add bone tissue or biomaterial into syringe inside first, because there are scales to express the volume on the syringe, so the doctor can add bone tissue or biomaterial of the appropriate volume into syringe according to his own needs; in the transplanting process, the bone tissue or the biological material can be pushed to the required part of the patient by pressing the piston in the injector, so that the waste of the bone tissue or the biological material is reduced, and the effect of transplanting the bone tissue or the biological material is facilitated;

2. by arranging the mounting assembly, the feeding hopper is detachably mounted on the injector through the mounting assembly, so that a doctor can detach or mount the feeding hopper according to the needs of the doctor, and the effect of more convenient use of the bone grafting device is achieved;

3. through having set up the spacing ring, when the doctor installed the magazine, can make the inside spacing ring of magazine and the terminal surface looks butt of syringe earlier, then rotate the magazine on the syringe, inside the draw-in groove that enters into the syringe up to the tenon, reached and made the doctor conveniently carry out the effect installed to the magazine.

Drawings

FIG. 1 is an overall structure of the present invention;

fig. 2 is a partial exploded view of the present invention.

In the figure, 1, syringe; 11. a card slot; 2. a feeding hopper; 3. mounting the component; 31. mounting a rod; 32. a tenon; 4. a limit ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model provides a bone grafting device, including syringe 1, feeding hopper 2 and installation component 3, the axis homolevel of syringe 1 and feeding hopper 2, feeding hopper 2 sets up on being close to the leakage fluid dram one end of syringe 1 and through installation component 3 demountable installation on syringe 1 to feeding hopper 2 and the inside intercommunication of syringe 1.

When a doctor needs to transplant bone tissues or biological materials to a patient, because the peripheral surface of the injector 1 is provided with the indicating number for indicating the volume, the doctor can add a proper amount of bone tissues or biological materials into the injector 1 according to the needs of the doctor, so that the waste of the bone tissues or the biological materials is reduced in the process of transplanting the patient; then the feeding hopper 2 is arranged on the injector 1 by using the mounting component 3; when the bone tissue or biomaterial transplanting device is used, the edge position of the port of the feeding hopper 2 far away from the injector 1 is aligned with the required part of a patient, then the piston inside the injector 1 is pressed, the piston inside the injector 1 can drive the bone tissue or biomaterial inside the injector 1 to enter the feeding hopper 2 through the liquid outlet of the injector 1 and finally enter the required part of the patient, and thus, the bone tissue or biomaterial transplanting process is completed; moreover, because the part of the patient with bone defect or bone reinforcement or guided fusion needs to be cleaned before the patient is transplanted, the patient can also use the injector 1 to clean the part and then perform the transplanting process, thus achieving the effect of expanding the application range of the bone grafting device.

Referring to fig. 2, when the doctor moves the bone tissue or biomaterial in a direction approaching the hopper 2 by pushing the bone tissue or biomaterial using the piston, the bone tissue or biomaterial is in a powder state and the discharge port of the syringe 1 is relatively small, so that the tip of the syringe 1 approaching the hopper 2 is completely opened in order to prevent a large amount of bone tissue or biomaterial from being accumulated at a position of the syringe 1 approaching the discharge port.

Referring to fig. 1, in the process of pushing bone tissue or biomaterial inside a syringe 1 into a feeding hopper 2 by a doctor using the syringe 1, in order to avoid waste of the bone tissue or biomaterial due to leakage, an end of the feeding hopper 2 close to the syringe 1 is sleeved on the outer surface of the syringe 1.

Referring to fig. 1, after a doctor pushes bone tissue or biomaterial inside a syringe 1 into a hopper 2, the hopper 2 is configured to have a bell-mouth shape in cross section so that the bone tissue or biomaterial smoothly enters a desired portion of a patient, and the cross-sectional area of the hopper 2 gradually increases from the side close to the syringe 1 to the side away from the syringe 1.

Referring to fig. 2, the mounting assembly 3 includes mounting rods 31 and tenons 32, the number of the mounting rods 31 is three, three mounting rods 31 are uniformly arranged on the end surface of the feeding hopper 2 close to the injector 1, the extending direction of the mounting rods 31 is the same as the axial direction of the injector 1, the side surface of the mounting rods 31 close to the injector 1 is abutted to the injector 1, the number of the tenons 32 is three, the three tenons 32 are respectively arranged at one end of the single mounting rod 31 far away from the feeding hopper 2, the cross-sectional shape of the tenons 32 is a right triangle, the side surface of the mounting rods 31 far away from the injector 1 is flush with a right-angle surface inside the tenons 32, one end of the tenons 32 close to the injector 1 extends into the outer surface of the injector 1, and the outer surface of the injector 1 is provided with a clamping groove.

When the feeding hopper 2 needs to be installed by using the installation component 3, the feeding hopper 2 is coaxially placed at one end close to the liquid outlet of the injector 1, and then the feeding hopper 2 is moved towards the direction close to the injector 1, because the side surface of the installation rod 31 close to the injector 1 is abutted to the outer surface of the injector 1, and the inclined surface inside the tenon 32 is positioned at one side of the installation rod 31 close to the injector 1, the injector 1 can drive the installation rod 31 to bend towards the direction far away from the injector 1 through the tenon 32 in the process of moving the feeding hopper 2 by a doctor; after the feeding hopper 2 drives the mounting rod 31 and the tenon 32 to move for a certain distance, the tenon 32 enters the clamping groove 11 on the outer surface of the injector 1, and meanwhile, the mounting rod 31 returns to the original shape and is abutted against the outer surface of the injector 1, so that the mounting of the feeding hopper 2 is completed; because the feeding hopper 2 is installed on the injector 1 through the installation rod 31 and the tenon 32, a doctor can disassemble the feeding hopper 2 according to own needs, and during disassembly, the doctor only needs to stir the installation rod 31 to the direction far away from the injector 1 to enable the tenon 32 to be separated from the clamping groove 11 on the injector 1, and meanwhile, the feeding hopper 2 is moved to the direction far away from the injector 1. Thus, the effect of facilitating the disassembly and assembly of the feeding hopper 2 is achieved.

Referring to fig. 1, in order to further facilitate the installation of the feeding hopper 2 by a doctor, a limiting ring 4 is arranged inside the feeding hopper 2, the limiting ring 4 and the feeding hopper 2 are coaxially arranged, the inner diameter of the limiting ring 4 is the same as that of the injector 1, and when the tenon 32 on the installation rod 31 enters the clamping groove 11, the limiting ring 4 abuts against the end face of the injector 1.

To sum up, the utility model discloses a use does: when a doctor needs to transplant bone tissues or biological materials into a patient, the doctor can firstly add cleaning fluid into the injector 1, and then the doctor uses the injector 1 to clean and disinfect the part of the patient needing to be transplanted; then, a doctor uses the mounting component 3 to mount the feeding hopper 2, during mounting, firstly, the feeding hopper 2 and the injector 1 are coaxially arranged, then the injector 1 and the feeding hopper 2 are moved towards the mutually approaching direction, when the limiting ring 4 in the feeding hopper 2 is abutted to the injector 1, the doctor can rotate the feeding hopper 2, the feeding hopper 2 can drive the mounting rod 31 and the tenon 32 to rotate together, and after the mounting rod 31 rotates for a certain angle, the tenon 32 on the mounting rod 31 can enter the clamping groove 11, so that the mounting of the feeding hopper 2 is completed; then, the doctor can add bone tissue or biological materials into the injector 1, in the process of transplantation, the doctor aligns the edge of the end of the feeding hopper 2 far away from the injector 1 with the required part of the patient, and then presses the piston in the injector 1, and the piston can push the bone tissue or the biological materials and the like in the injector 1 into the feeding hopper 2; since the cross-sectional shape of the hopper 2 is flared and the cross-sectional area of the hopper 2 is gradually increased from the proximal side to the distal side of the syringe 1, the bone tissue or biomaterial introduced into the inside of the hopper 2 is automatically introduced into a desired portion of the patient, thereby completing the implantation process for the patient.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A bone grafting device which is characterized in that: the device comprises a syringe (1), a feeding hopper (2) and a mounting assembly (3), wherein the feeding hopper (2) is arranged at one end of a liquid discharge port of the syringe (1), the mounting assembly (3) is arranged between the feeding hopper (2) and the syringe (1) and used for mounting the feeding hopper (2) on the syringe (1), and the interior of the syringe (1) is communicated with the interior of the feeding hopper (2).

2. The bone grafting device of claim 1, wherein: installation component (3) are including two at least installation pole (31) and tenon (32), a plurality of installation pole (31) evenly distributed on feeding hopper (2), installation pole (31) extend to the direction that is close to syringe (1), the surface looks butt of installation pole (31) and syringe (1), the cross sectional shape of tenon (32) is right triangle, tenon (32) set up on installation pole (31) keep away from feeding hopper (2) the end, the inside inclined plane of tenon (32) is located the one side that installation pole (31) are close to syringe (1), draw-in groove (11) with tenon (32) looks adaptation is seted up on the surface of syringe (1).

3. The bone grafting device of claim 2, wherein: the feeding hopper (2) is provided with a limiting ring (4), and when the tenon (32) enters the clamping groove (11) of the injector (1), the limiting ring (4) is abutted to the end face, close to the feeding hopper (2), of the injector (1).

4. A bone grafting device as claimed in claim 3, wherein: the cross section of the feeding hopper (2) is in a bell mouth shape, and the cross section area of the feeding hopper (2) is gradually increased along the direction from the close to the far away from the injector (1).

5. The bone grafting device of claim 1, wherein: the end surface of the injector (1) close to the feeding hopper (2) is completely open.

6. The bone grafting device of claim 4, wherein: the limiting ring (4) is arranged on the inner wall of the feeding hopper (2), and the feeding hopper (2) is sleeved on the circumferential surface of the injector (1).

7. The bone grafting device of claim 6, wherein: the number of the mounting rods (31) is three, and the three mounting rods (31) are uniformly arranged on the end surface of the feeding hopper (2) close to the injector (1).

8. A bone grafting device as claimed in claim 3, wherein: the inner diameter of the limiting ring (4) is the same as that of the injector (1).