CN111012437A

CN111012437A - Operation bone meal extraction component

Info

Publication number: CN111012437A
Application number: CN202010077458.2A
Authority: CN
Inventors: 谷昌德
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-29
Filing date: 2020-01-29
Publication date: 2020-04-17

Abstract

The invention relates to the technical field of medical instruments, and mainly solves the technical problem of how to reduce the depth of a needle tube inserted into the body of a patient and improve the operation quality. The surgical bone powder extraction component comprises a needle tube, a needle core and a bone powder collection device; one end of the needle tube is rotatably connected with a sucking disc, the insides of the needle tube and the sucking disc are communicated to form a bone meal channel, and a sliding groove is arranged on the side wall of the needle tube; the needle core is sleeved in the needle tube, the needle core is sleeved with a pushing piece, the pushing piece and the needle core are in threaded fit, a pushing part extending out of the sliding groove is arranged on the pushing piece, and the pushing part is driven to push the pushing piece along the sliding groove so as to enable the needle core to rotate; one end of the needle core is provided with a drill bit, the drill bit is used for penetrating out of the sucking disc through the bone meal channel, and the drill bit is provided with a spiral chip groove used for being communicated with the bone meal channel; the bone meal collecting device is used for collecting bone meal from the bone meal channel. The technical scheme provided by the invention can reduce the extra damage caused by unnecessary insertion in the prior art and improve the quality of the operation.

Description

Operation bone meal extraction component

Technical Field

The invention relates to the technical field of medical instruments, in particular to an operation bone meal extraction assembly.

Background

At present, allogenic chemical synthetic materials such as silica gel, bone meal, bulked body and the like are used in plastic cosmetic surgery of hump nose, hump jaw and other parts, and the materials often generate foreign body rejection reaction to cause discomfort of the body of a patient, so that the bone meal of the patient is generally adopted as a filler for cosmetic surgery at present. Wherein, when extracting the bone meal of the patient, a bone meal extraction component is needed.

As shown in fig. 1, patent with publication number CN205379334 discloses a bone meal extracting assembly, which comprises a needle tube 1 and a needle core 2 capable of being inserted into the needle tube 1, wherein an open slot 11 is arranged on the side wall of the front end of the needle tube 1, a plurality of conical protrusions 22 for scraping bone meal are arranged on the side wall of the front end of the needle core 2, the conical protrusions 22 extend out of the open slot 11, a collecting channel 21 for sucking bone meal is arranged in the needle core 2, and the tail end of the needle core 2 is used for connecting an injector communicated with the collecting channel 21. When the bone scraping needle is used, the needle tube 1 is inserted into cartilage tissue of a patient, then the needle core 2 is pulled out, the needle core 2 drives the conical protrusion 22 to move back and forth in the open slot 11, and bone powder is scraped from the cartilage tissue of the patient. The syringe is then withdrawn and the scraped bone meal can be sucked into the syringe via the collection channel 21.

The above technical solution has at least the following drawbacks in implementation: the needle cannula 1 is inserted into the cartilage tissue of the patient to a depth greater than the actual extraction depth of the bone meal, which causes unnecessary damage to the patient's body, and improvement is urgently needed.

Disclosure of Invention

In view of this, the invention provides an operation bone meal extraction component, mainly solving the technical problems that: how to reduce the depth of the needle tube inserted into the body of a patient and improve the operation quality.

In order to achieve the purpose, the invention mainly provides the following technical scheme:

the embodiment of the invention provides a surgical bone meal extraction assembly, which comprises a needle tube, a needle core and a bone meal collection device, wherein the needle tube is provided with a needle core; one end of the needle tube is rotatably connected with a sucking disc, the interiors of the needle tube and the sucking disc are communicated to form the bone meal channel, and a sliding groove is axially formed in the side wall of the needle tube; the needle core is sleeved in the needle tube, a pushing piece is sleeved on the needle core and in threaded fit with the needle core, a pushing part extending out of the sliding groove is arranged on the pushing piece, and the pushing part is driven to push the pushing piece along the sliding groove so as to enable the needle core to rotate; a drill bit is arranged at one end of the needle core and is used for penetrating out of the sucking disc through the bone meal channel, and a spiral chip groove used for being communicated with the bone meal channel is formed in the drill bit; the bone meal collecting device comprises a collecting cavity and a piston which can stretch relative to the collecting cavity, one end of the collecting cavity is provided with an inlet and an outlet, the inlet is communicated with the bone meal channel, the inlet and the outlet are both provided with one-way valves, and the outlet is also provided with a filter screen for filtering the bone meal; the sucking disc is a flexible sucking disc, and one end of the needle tube is hermetically connected with one end of the flexible sucking disc in a bonding mode; the pushing part is provided with a bulge, the pushing part is provided with a groove, and the bulge and the groove are fixedly connected in an inserting mode.

By means of the technical scheme, the surgical bone meal extraction component at least has the following beneficial effects:

1. because the drill bit directly drills the bone powder on the cartilage tissue, the drilling depth is the actual extraction depth of the bone powder, thereby reducing the extra damage caused by unnecessary insertion in the prior art, improving the quality of the operation and being beneficial to the postoperative recovery of a patient.

2. Because the needle core is sleeved in the needle tube, the needle tube is adsorbed on the skin of a patient through the sucking disc without being inserted into the body of the patient, and the damage to the body of the patient can be further reduced.

3. Due to the protection of the needle tube, the bone powder drilled by the drill bit can be collected in the bone powder channel without leakage to cause loss of the collection component.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic cross-sectional view of a bone meal extractor of the prior art;

FIG. 2 is a schematic structural view of a pushing member of a surgical bone powder extraction assembly at one end of a chute according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the pushing member of the surgical bone powder extraction assembly at the other end of the sliding chute according to an embodiment of the invention.

Reference numerals: 1. a needle tube; 2. a suction cup; 3. a needle core; 4. a pusher member; 5. a pushing part; 6. a guide cylinder; 7. an end cap; 8. an elastic member; 9. a bone meal collecting device; 13. a bone meal channel; 31. a drill bit; 41. a groove; 51. a protrusion; 61. a guide hole; 91. an inlet; 92. a one-way valve; 93. a collection chamber; 94. a piston; 95. an outlet; 96. a filter screen; 101. a chute; 311. spiral chip grooves.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly. In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

As shown in fig. 2, the surgical bone meal extracting assembly provided by one embodiment of the invention comprises a needle tube 1, a needle core 3 and a bone meal collecting device 9. One end of the needle tube 1 is rotatably connected with a suction cup 2, for example, the two can be connected through a flexible material or a rotating shaft. The needle tube 1 and the suction cup 2 are communicated with each other to form a bone meal channel 13. The needle core 3 is sleeved in the needle tube 1 and can be inserted into and pulled out of the needle tube 1. The needle core 3 is sleeved with the pushing piece 4 and is in threaded fit with the pushing piece and the pushing piece, specifically, the side wall of the needle core 3 is provided with an external thread, the pushing piece 4 is provided with an internal thread, and the needle core 3 is in threaded connection with the internal thread of the pushing piece 4 through the external thread.

As shown in fig. 2, a slide groove 101 is provided in the side wall of the needle tube 1 in the axial direction. The shape of the needle tube 1 is not limited, and may be a circular tube, a square tube, or a tube having another shape. When the needle tube 1 is a non-circular tube, the "axial direction" refers to the longitudinal direction of the tube hole of the needle tube 1. The pushing piece 4 is provided with a pushing part 5. The pushing part 5 may be block-shaped, and the pushing part 5 extends out of the sliding groove 101, so that the user can push the pushing part 5 with fingers conveniently. The pushing portion 5 is for being driven to push the pushing member 4 along the slide groove 101. Fig. 2 shows a schematic structural view of the pushing portion 5 at one end of the sliding chute 101, and fig. 3 shows a schematic structural view of the pushing portion 5 at the other end of the sliding chute 101. Because the pushing piece 4 is in threaded fit with the needle core 3, the pushing piece 4 can drive the needle core 3 to rotate when driven by the pushing part 5. The drill 31 is disposed at one end of the stylet 3, preferably, the drill 31 and the stylet 3 are fixedly connected, and more preferably, the drill 31 and the stylet 3 are integrally formed. The drill 31 is used for penetrating out of the suction cup 2 through the bone meal channel 13. The drill 31 is provided with a spiral chip groove 311 which is communicated with the bone meal channel 13.

When in use, firstly, the sucker 2 is absorbed on the skin of the cartilage tissue of a patient; then the needle tube 1 is rotated relative to the suction cup 2 to adjust the drilling position of the drill 31 on the needle core 3; then push the pushing part 5 along the sliding slot 101, the pushing part 5 drives the stylet 3 to rotate through the pushing piece 4, and the stylet 3 is also pushed downwards by the pushing piece 4 when rotating, so that the stylet 3 drives the drill 31 to drill holes in the cartilage tissue. The bone powder drilled on the cartilage tissue by the drill 31 is discharged into the bone powder channel 13 through the spiral chip discharge groove 311, and then the bone powder is collected from the bone powder channel 13 by the bone powder collecting device 9.

In the above example, on the one hand, the drill 31 directly drills bone powder on the cartilage tissue, and the drilling depth is the actual extraction depth of the bone powder, so that the extra damage caused by unnecessary insertion in the prior art can be reduced, the quality of the operation is improved, and the postoperative recovery of the patient is facilitated. On the other hand, because the needle core 3 is sleeved in the needle tube 1, the needle tube 1 is adsorbed on the skin of the patient through the sucking disc 2 without being inserted into the body of the patient, thereby further reducing the damage to the body of the patient. In addition, due to the protection of the needle tube 1, the bone meal drilled by the drill 31 can be collected in the bone meal channel 13 without leakage to cause loss of collection component.

In order to collect bone meal from the bone meal channel 13 by the bone meal collecting device 9, as shown in fig. 2, the bone meal collecting device 9 may include a collecting cavity 93 and a piston 94. The bone meal collecting device 9 may be shaped like a syringe. One end of the collection chamber 93 has an inlet 91 and an outlet 95. The inlet 91 is connected to the bone meal channel 13, and preferably, the inlet 91 is connected to the side wall of the needle tube 1. Wherein, the inlet 91 and the outlet 95 are both provided with one-way valves 92, the one-way valve 92 at the inlet 91 only allows the external substances to enter the collection cavity 93 in one way, and the one-way valve 92 at the outlet 95 only allows the substances in the collection cavity 93 to flow out. The check valve 92 is commercially available and is constructed and arranged in accordance with the prior art and will not be described further herein. In order to prevent the bone meal collected in the collection cavity 93 from flowing out of the outlet 95, a filter screen 96 for filtering the bone meal is further disposed at the outlet 95, and the filter screen 96 may be gauze or the like. For ease of operation, the piston 94 may have a piston rod. The piston 94 can stretch out and draw back relative to the collection cavity 93, so the piston 94 can be repeatedly drawn to suck the bone powder from the bone powder channel 13, and the bone powder in the collection cavity 93 can be uniformly taken out after the bone powder is collected.

As shown in fig. 2, the surgical bone powder extraction assembly of the present invention may further include a guide cylinder 6. The guide cylinder 6 is fixedly sleeved in the needle tube 1, for example, the guide cylinder and the needle tube can be fixed in an interference fit manner. The guide cylinder 6 is provided with a guide hole 61, and the stylet 3 passes through the guide hole 61 to guide the movement of the stylet 3, thereby improving the movement precision of the stylet 3.

When the needle core 3 passes through the guide hole 61 on the guide cylinder 6, as shown in fig. 2, the guide cylinder 6 can cooperate with the needle core 3 to seal the end of the bone meal channel 13 departing from the suction cup 2, so that the leakage of the bone meal from the end of the bone meal channel 13 departing from the suction cup 2 can be reduced. In addition, the suction cup 2 is adsorbed on the skin of the patient, so that the bone meal drilled by the drill 31 can not leak from the suction cup 2 side of the bone meal channel 13, and the leakage loss of the bone meal can be reduced to the maximum extent.

Since the joint between the suction cup 2 and the needle tube 1 may leak bone powder, it is preferable that the suction cup 2 is a flexible suction cup, such as a silica gel suction cup. One end of the needle tube 1 is connected with one end of the flexible sucker in a sealing manner by means of adhesion, for example, one end of the flexible sucker can be connected with one end of the needle tube 1 by means of hot melting or glue.

As shown in fig. 2, the surgical bone powder extraction assembly of the present invention may further include an elastic member 8, and the elastic member 8 may be a spring, a flexible rubber, or the like. The elastic member 8 is used for providing a force for moving the pushing part 5 to the initial position; wherein, in the initial position, the pushing part 5 is located at one end of the chute 101 away from the suction cup 2. In this example, the elastic member 8 can push the pushing portion 5 to automatically return, which has the effect of saving manpower.

When the surgical bone powder extraction assembly of the present invention includes the guide cylinder 6, as shown in fig. 2, the above-mentioned elastic member 8 may be located between the guide cylinder 6 and the pushing member 4. Preferably, one end of the elastic member 8 abuts against one end of the guide cylinder 6, and the other end abuts against one end of the pushing member 4. More preferably, one end of the guide cylinder 6 is provided with a first convex column, one end of the pushing member 4 is provided with a second convex column, one end of the elastic member 8 is sleeved on the first convex column, and the other end of the elastic member is sleeved on the second convex column, so that the effect of preventing the elastic member 8 from loosening is achieved.

As shown in fig. 2, the surgical bone powder extraction assembly of the present invention may further include an end cap 7, wherein the end cap 7 is adapted to be fastened to an end of the needle tube 1 facing away from the suction cup 2. In a specific application example, the end cap 7 may be screwed on the end of the needle cannula 1 facing away from the suction cup 2. Specifically, the end cap 7 may have an annular flange with an internal thread, and the end of the needle cannula 1 facing away from the suction cup 2 is provided with an external thread for screwing with the internal thread. The end cap 7 can cover the needle core 3 in the needle tube 1, and prevent the needle core 3 from coming off from one end of the needle tube 1 away from the suction cup 2. In addition, the appearance of the needle tube 1 is more concise and beautiful by covering the end cap 7.

Since the pushing part 5 of the pushing member 4 is protruded from the inside of the needle tube 1 through the sliding groove 101, it is preferable that both the pushing part 5 and the pushing member 4 are combined for easy installation. Specifically, as shown in fig. 2, the pushing portion 5 and the pushing member 4 may be fixed in an inserting manner, for example, a protrusion 51 is disposed on the pushing portion 5, and a groove 41 is disposed on the pushing member 4, or a groove 41 is disposed on the pushing portion 5 and a protrusion 51 is disposed on the pushing member 4, wherein the protrusion 51 and the groove 41 are fixed in an inserting manner. Therefore, the pushing part 4 can be sleeved on the needle core 3, and then the pushing part 5 is inserted and fixed on the pushing part 4 from the sliding groove 101.

The operating principle of the surgical bone meal extraction component is as follows:

firstly, the sucking disc 2 is adsorbed and fixed on the skin outside the cartilage tissue of a patient, then the needle tube 1 is rotated, and the drilling direction of the drill 31 on the needle core 3 is adjusted; then, the pushing part 5 is pressed along the chute 101 to drive the drill 31 on the needle core 3 to drill holes in the cartilage tissue, and bone meal drilled by the drill 31 is discharged into the bone meal channel 13 through the spiral chip discharge groove 311; pushing and pulling the pushing piece 4 in a reciprocating way until the drill 31 drills enough bone powder; then the piston 94 of the bone powder collecting device 9 is pulled and pulled back and forth until all the bone powder in the bone powder channel 13 is collected in the collecting cavity 93; and finally, uniformly taking out the bone meal in the collecting cavity 93 so as to finish the extraction work of the bone meal for doctors to use when relevant operations are performed.

Here, it should be noted that: in the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. An operation bone meal extraction component is characterized by comprising a needle tube (1), a needle core (3) and a bone meal collecting device (9);

one end of the needle tube (1) is rotatably connected with a sucking disc (2), the interiors of the needle tube and the sucking disc are communicated to form the bone meal channel (13), and a sliding groove (101) is axially arranged on the side wall of the needle tube (1);

the needle core (3) is sleeved in the needle tube (1), a pushing piece (4) is sleeved on the needle core (3) and is in threaded fit with the needle core, a pushing part (5) extending out of the sliding groove (101) is arranged on the pushing piece (4), and the pushing part (5) is used for being driven to push the pushing piece (4) along the sliding groove (101) so as to enable the needle core (3) to rotate; one end of the needle core (3) is provided with a drill bit (31), the drill bit (31) is used for penetrating out of the suction disc (2) through the bone meal channel (13), and a spiral chip groove (311) used for being communicated with the bone meal channel (13) is arranged on the drill bit (31);

the bone meal collecting device (9) comprises a collecting cavity (93) and a piston (94) which can stretch relative to the collecting cavity (93), one end of the collecting cavity (93) is provided with an inlet (91) and an outlet (95), the inlet (91) is communicated with the bone meal channel (13), the inlet (91) and the outlet (95) are both provided with one-way valves (92), and the outlet (95) is also provided with a filter screen (96) for filtering bone meal;

the sucking disc (2) is a flexible sucking disc, and one end of the needle tube (1) is connected with one end of the flexible sucking disc in a sealing manner in a bonding manner;

the pushing part (5) is provided with a protrusion (51), the pushing part (4) is provided with a groove (41), and the protrusion (51) and the groove (41) are fixedly connected in an inserting mode.