CN212066888U

CN212066888U - Placing device for osteochondral scaffold

Info

Publication number: CN212066888U
Application number: CN202020282720.2U
Authority: CN
Inventors: 陈慧敏; 汪争光
Original assignee: Huaxia Siyin Shanghai Biotechnology Co ltd
Current assignee: Huaxia Siyin Shanghai Biotechnology Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-12-04
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses a placing device for osteochondral bone scaffold, which comprises a cylinder body and a push rod, wherein one end of the cylinder body is provided with a conical head which is integrally formed with the cylinder body, an inner cavity is arranged in the cylinder body along the axial direction of the cylinder body, and the inner cavity penetrates through the cylinder body; the inner cavity is internally provided with the push rod, and the push rod head of the push rod can extend into the inner cavity at the position of the conical head. The utility model discloses a placer places the cartilage support of usefulness through the cartilage support that will perform the operation in advance in the barrel, aim at the hole of placing of the cartilage support that drills in advance with the cone of barrel when performing the operation, rethread push rod pushes away the cartilage support and places downtheholely, not only avoided the cartilage support difficult when performing the operation put in place, easily lost, the problem of fragile and easy inversion, still reduced the time of placing the cartilage support among the operation process effectively, patient and medical personnel's burden has been alleviateed.

Description

Placing device for osteochondral scaffold

Technical Field

The utility model relates to the field of medical supplies, concretely relates to placer for osteochondral support.

Background

Articular cartilage damage is intractable damage in the medical field, and symptoms such as joint swelling and pain are often caused after cartilage damage. Because the cartilage tissue has special structure and no nerves, blood vessels and lymphatic vessels, the nutrition supply of the cartilage is indirectly provided by joint synovial fluid; therefore, the damaged articular cartilage is difficult to repair and regenerate, and obvious dysfunction is easy to cause. At present, the injury of the articular cartilage tissue of a human body is mainly repaired by a cartilage bracket, so that a patient avoids or delays joint replacement operation, and meanwhile, the operation cost is also greatly reduced.

When the cartilage repair operation is performed, blood can overflow from the drilling hole at the cartilage position, so that the operation visual field is not clear, the osteochondral scaffold is small in size and has certain elasticity, the osteochondral scaffold is not easy to put in place, is easy to lose and difficult to distinguish in direction, the problem that the osteochondral scaffold is easy to damage by using forceps and the like can be solved, the time for placing the osteochondral scaffold in the operation process is increased, and the burden of patients and medical staff is increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a placer for cartilage support in order to overcome among the prior art when carrying out the cartilage repair operation, cartilage support is difficult for putting in place, easily loses, fragile problem.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the placing device for the osteochondral scaffold is characterized by comprising a barrel and a push rod, wherein one end of the barrel is provided with a conical head which is integrally formed with the barrel, an inner cavity is formed in the barrel along the axial direction of the barrel and penetrates through the barrel;

the inner cavity is internally provided with the push rod, and the push rod head of the push rod can extend into the inner cavity at the position of the conical head.

In this scheme, adopt above-mentioned structural style, place in the barrel in advance through the cartilage support that will operate usefulness, aim at the hole of placing of the good cartilage support of drilling in advance with the conical head of barrel when the operation, it is downthehole to push away the placing with the cartilage support to the rethread push rod, not only avoided the cartilage support difficult when the operation put in place, easily lose, fragile problem, still reduced the time of placing the cartilage support among the operation process effectively, patient and medical personnel's burden has been alleviateed.

Preferably, the wall thickness of the barrel at the conical head decreases in the direction in which the outer diameter of the conical head becomes smaller.

In this scheme, adopt above-mentioned structural style, the wall thickness of cone head open end department is very thin, makes things convenient for medical personnel to align the open end of cone head and the hole of placing of bone cartilage support, reduces the operation time.

Preferably, the placing device further comprises a limit safety buckle, and the limit safety buckle is used for buckling on the push rod to prevent the push rod head from pushing out the osteochondral scaffold.

In this scheme, adopt above-mentioned structural style, establish on the push rod through spacing safe knot card, can avoid carelessly promoting the push rod and release the osteochondral support in the barrel, cause the loss.

Preferably, the limit safety buckle is connected to the barrel or the push rod through a connecting piece.

In this scheme, adopt above-mentioned structural style, can avoid spacing safety to detain and lose.

Preferably, one end of the cylinder body, which is far away from the conical head, is provided with a finger supporting part, and the finger supporting part is used for preventing the cylinder body from sliding towards the moving direction of the push rod when the push rod is pushed.

In this scheme, adopt above-mentioned structural style, when using, through forefinger and middle finger grip barrel, the thumb pushes away the push rod and releases the osteochondral support on the push rod, the one-hand operation of being convenient for.

Preferably, the finger supporting parts are two supporting plates which extend outwards along the radial direction of the cylinder body and extend in opposite directions.

Preferably, the contact side of the push rod head and the osteochondral scaffold is a plane.

Preferably, a rubber pad is further arranged on one side of the push rod head, which is in contact with the osteochondral scaffold.

Preferably, an opening communicated with the inner cavity is formed in the side wall of the cylinder body, and the opening is used for placing the osteochondral scaffold in the inner cavity.

In this scheme, adopt above-mentioned structural style, set up the opening on the barrel, the medical personnel of being convenient for carry out the operation of implanting of many times cartilage support to same patient simultaneously, need not place cartilage support in the barrel again after taking out the push rod, have greatly reduced operation time, have alleviateed patient and medical personnel's burden.

Preferably, the opening is provided near one end of the conical head.

Preferably, an observation groove is formed in one end, close to the conical head, of the cylinder body, and the observation groove is used for observing the position of the osteochondral scaffold.

In the scheme, the structural form is adopted, so that a doctor can know the operation process more clearly, and the follow-up operation is facilitated.

Preferably, the observation groove is an open groove arranged along the axial direction of the cylinder, and one end of the open groove is close to the open end of the conical head.

Preferably, a shielding piece made of transparent material is arranged on the opening groove.

Preferably, the barrel is made of a transparent material.

Preferably, the cross-section of the inner cavity is circular.

Preferably, the placement device further comprises a seal for sealing the lumen opening at the conical head.

In the scheme, the osteochondral scaffold in the cylinder body can be prevented from being lost or polluted by the external environment by adopting the structural form.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: the utility model discloses a placer places the cartilage support of usefulness through the cartilage support that will perform the operation in advance in the barrel, aim at the hole of placing of the cartilage support that drills in advance with the cone of barrel when performing the operation, rethread push rod pushes away the cartilage support and places downtheholely, not only avoided the cartilage support difficult when performing the operation put in place, easily lost, the problem of fragile and easy inversion, still reduced the time of placing the cartilage support among the operation process effectively, patient and medical personnel's burden has been alleviateed.

Drawings

Fig. 1 is a schematic structural diagram of a placement device according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the placement device according to the preferred embodiment of the present invention.

Fig. 3 is a schematic structural view of the barrel according to the preferred embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a placement device according to another preferred embodiment of the present invention.

Fig. 5 is an exploded view of a placement device according to another preferred embodiment of the present invention.

Fig. 6 is a schematic structural view of a barrel according to another preferred embodiment of the present invention.

Description of reference numerals:

cylinder 1

Inner cavity 11

Conical head 12

Finger-supporting part 13

Opening 14

Observation tank 15

Push rod 2

Shaft 21

Putter head 22

Pressing part 23

Limit safety buckle 3

Soft rope 4

Detailed Description

The present invention is further illustrated by way of the following examples, but is not intended to be limited thereby within the scope of the following examples.

As shown in fig. 1-3, the placement device for osteochondral scaffold of the present embodiment is shown. The placing device can be a disposable device, and the osteochondral bone bracket with the corresponding specification is placed in the cylinder body 1 before use so as to be directly used. The placing device can also be recovered after use, and the bone cartilage bracket is placed again after cleaning and disinfection for the next use.

As shown in fig. 1-3, the placing device comprises a cylinder 1 and a push rod 2, wherein one end of the cylinder 1 is provided with a conical head 12 which is integrally formed with the cylinder 1, an inner cavity 11 is formed in the cylinder 1 along the axial direction of the cylinder 1, and the inner cavity 11 penetrates through the cylinder 1; the push rod 2 is arranged in the inner cavity 11, and the push rod head 22 of the push rod 2 can extend into the inner cavity 11 at the position of the conical head 12.

In this embodiment, place the cartilage support of operation usefulness in barrel 1 in advance through the cartilage support, with the placing hole of the cartilage support of drilling in advance of the conical head 12 alignment of barrel 1 when the operation, rethread push rod 2 pushes away the cartilage support and places downtheholely, not only avoided the cartilage support difficult when the operation put in place, easily lost, fragile problem, still reduced the time of placing the cartilage support among the operation process effectively, patient and medical personnel's burden has been alleviateed.

As shown in fig. 3, in the present embodiment, the wall thickness of the cylinder 1 at the conical head 12 is reduced in the direction in which the outer diameter of the conical head 12 becomes smaller. In other alternative embodiments, the wall thickness of the barrel 1 at the conical head 12 may be thinned only at the outlet, and the thickness may be constant at other positions.

The wall thickness of the opening end of the conical head 12 is very thin, so that medical workers can align the opening end of the conical head 12 with the placing hole of the osteochondral scaffold conveniently, and the operation time is shortened.

As shown in figure 1, the placing device also comprises a limit safety buckle 3, and the limit safety buckle 3 is used for buckling on the push rod 2 to prevent the push rod head 22 from pushing out the osteochondral scaffold. The limit safety buckle 3 is clamped on the rod body 21 of the push rod 2, so that the situation that the push rod 2 is pushed carelessly to push out the osteochondral bone bracket in the cylinder body 1 to cause loss can be avoided. In this embodiment, the safety buckle 3 has a semicircular structure. Before the placing device is used, the limit safety buckle 3 is clamped on the rod body 21 of the push rod 2, and the limit safety buckle 3 is taken down when the placing device is used. Wherein, in order to avoid spacing safety buckle 3 to drop from push rod 2 under the condition of no external force, spacing safety buckle 3 sets to the arc structure that has big semicircle, for the convenience of spacing safety buckle 3's installation and take off, selects the material that has certain elasticity to make.

The limit safety buckle 3 has the function of limiting the movement of the push rod 2, and can be used for limiting the movement distance of the push rod 2 during early production and manufacturing, for example, the height of the limit safety buckle 3 is just equal to the length of the osteochondral scaffold, and when an operation is performed, after the limit safety buckle 3 is removed, the push rod 2 is pushed to the bottom and just pushes out the osteochondral scaffold completely. If each cylinder 1 is provided with 3 osteochondral supports, 3 limit safety buckles 3 are correspondingly arranged, and one limit safety buckle 3 is correspondingly taken down when each osteochondral support is used.

In order to avoid the loss of the limit safety buckle 3, the limit safety buckle 3 can be connected to the barrel 1 or the push rod 2 through connecting pieces such as a soft rope 4. As shown in fig. 1, the limit safety catch 3 is connected to the barrel 1.

As shown in fig. 1 and 2, the end of the barrel 1 away from the conical head 12 is provided with a finger-supporting part 13, and the finger-supporting part 13 is used for preventing the barrel 1 from sliding towards the moving direction of the push rod 2 when the push rod 2 is pushed.

By adopting the structure, when in use, the barrel body 1 is clamped by the index finger and the middle finger, and the thumb pushes the pressing part 23 on the push rod 2 to push out the osteochondral bone scaffold, thereby facilitating the operation with one hand. The finger rest 13 may be provided at the end of the barrel 1 remote from the end of the conical head 12 or may be spaced from the end.

In this embodiment, the finger receiving portions 13 are two receiving plates extending outward in the radial direction of the barrel 1 and extending in opposite directions. The supporting plate can be flat, or the surface of the supporting plate contacted with the finger can be arranged into an arc shape, or the finger supporting part 13 is in a ring-shaped structure.

The shaft 21 of the push rod 2 is provided with a guide part which is matched with the inner cavity 11 to slide. The push rod head 22 of the push rod 2 can not generate deviation when moving, and the bone cartilage bracket can be conveniently placed.

As shown in fig. 2, in this embodiment, the whole body of the shaft 21 of the push rod 2 is a guide part, the shaft 21 is composed of a plurality of strip-shaped plates, and a gap is formed between the strip-shaped plates, so that air can conveniently overflow during the pushing process of the push rod 2, and the resistance is reduced. The outward flange of bar shape board and the inner wall contact of inner chamber 11, and the outward flange of bar shape board is the arcwall face. In other alternative embodiments, the push rod 2 and the cylinder 1 may have other guiding structures, for example, a slide block or the like is provided on the shaft 21 to match with the inner cavity 11.

In this embodiment, the side of the putter head 22 that contacts the osteochondral scaffold is flat. This avoids damage to the side of the osteochondral scaffold that contacts the putter head 22.

Since the putter head 22 is made of a hard material, in order to prevent the putter head 22 from being damaged by the direct contact with the osteochondral scaffold, a flexible or elastic material such as a rubber pad may be disposed on the contact side of the putter head 22 and the osteochondral scaffold.

In other embodiments, as shown in fig. 4-6, the side wall of the barrel 1 is provided with an opening 14 communicating with the inner cavity 11, and the opening 14 is used for placing the osteochondral scaffold in the inner cavity 11. Wherein the opening 14 is provided near one end of the conical head 12.

In this embodiment, adopt above-mentioned structural style, the implantation operation of bone cartilage support is carried out many times simultaneously to the same patient to the medical personnel of being convenient for, need not take out push rod 2 and then place bone cartilage support in barrel 1, has greatly reduced the operation time, has alleviateed patient and medical personnel's burden.

In other embodiments, as shown in fig. 4-6, the barrel 1 is provided with a viewing slot 15 at an end thereof adjacent to the conical head 12, the viewing slot 15 being used to view the position of the osteochondral scaffold.

The observation groove 15 is an open groove arranged along the axial direction of the cylinder 1, and one end of the open groove is close to the open end of the conical head 12. In other embodiments, a shield of transparent material is disposed over the open slot.

In the embodiment, the structural form is adopted, so that a doctor can know the operation process more clearly, and the follow-up operation is facilitated.

Of course, alternatively, the barrel 1 is made of a transparent material. This eliminates the need for the observation groove 15 in the cylinder 1.

As shown in fig. 3, in the present embodiment, the cross section of the inner cavity 11 is circular. The inner diameters of the inner cavities 11 are all the same. In other alternatives, the upper section of the cavity 11 may have other shapes, but the cavity 11 in the conical head 12 is circular in section.

In this embodiment, the placement device further comprises a seal for sealing the lumen opening at the conical head 12. The sealing element arranged at the inner cavity opening of the conical head 12 can prevent the osteochondral scaffold in the cylinder body 1 from being lost or polluted by the external environment.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The placing device for the osteochondral scaffold is characterized by comprising a barrel and a push rod, wherein a conical head integrally formed with the barrel is arranged at one end of the barrel, an inner cavity is formed in the barrel along the axial direction of the barrel and penetrates through the barrel;

2. The placement device for osteochondral scaffold of claim 1, wherein the wall thickness of the barrel at the conical head decreases in a direction in which the outer diameter of the conical head becomes smaller.

3. The placement device for osteochondral scaffold of claim 1, further comprising a safety stop buckle for buckling on the push rod to prevent the push rod from pushing out the osteochondral scaffold.

4. The placing device for the osteochondral scaffold of claim 3, wherein the safety stopper is connected to the barrel or the push rod through a connector.

5. The placement device for osteochondral scaffold according to claim 1, wherein the end of the barrel body away from the conical head is provided with a finger-holding portion for preventing the barrel body from sliding in the moving direction of the pushing rod when the pushing rod is pushed.

6. The placement device for osteochondral scaffolds of claim 5, wherein the finger portions are two plates extending outward in the radial direction of the barrel and extending in opposite directions.

7. The placing device for the osteochondral scaffold of claim 1, wherein a side of the push rod head contacting the osteochondral scaffold is a flat surface.

8. The placing device for the osteochondral scaffold of claim 1, wherein the side of the push rod head contacting the osteochondral scaffold is further provided with a rubber pad.

9. The placing device for the osteochondral scaffold as defined in claim 1, wherein the barrel body is provided with a viewing slot at an end thereof adjacent to the conical head, the viewing slot being used to view the position of the osteochondral scaffold.

10. The placement device for osteochondral scaffolds as defined in claim 9, wherein the observation groove is an open groove disposed along the axial direction of the cylinder, and one end of the open groove is close to the open end of the conical head.

11. The placing device for the osteochondral scaffold of claim 10, wherein the open slots are provided with shielding members made of transparent material.

12. The placement device for osteochondral scaffold of any one of claims 1-8, wherein the barrel is made of a transparent material.

13. The placement device for osteochondral scaffold of any one of claims 1-8, wherein the lumen is circular in cross-section.

14. The placement device for osteochondral scaffold of any one of claims 1-11, further comprising a seal for sealing the lumen opening at the conical head.