CN110215317B

CN110215317B - Bone pressing device

Info

Publication number: CN110215317B
Application number: CN201910568292.1A
Authority: CN
Inventors: 陈为坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2021-08-13
Anticipated expiration: 2039-06-27
Also published as: CN110215317A

Abstract

The invention discloses a bone pressing device which comprises a molding cavity, and a first pressing device and a second pressing device which are arranged at two ends of the molding cavity, wherein the first pressing device and the second pressing device are respectively in threaded connection with the molding cavity, a cavity for containing a broken bone block is arranged in the molding cavity, a first pressing piece and a second pressing piece for pressing and crushing the bone block are respectively arranged in the first pressing device and the second pressing device, an annular notch is formed between the outer wall of the first pressing piece and the inner wall of the second pressing device and between the outer wall of the first pressing piece and the inner wall of the second pressing device, and the first pressing piece and the second pressing piece are respectively matched with the cavity to enable the broken bone block to be pressed in the cavity to form the required molded bone block. Compared with the prior art, the invention has the advantages of powerful pressurization on two sides of the broken bone blocks, quick forming, time saving and labor saving; simple structure, it is small, for dismantling the connection between each part, portable use and abluent beneficial effect.

Description

Bone pressing device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a bone pressing device.

Background

The skeleton of the human body plays a role in supporting the body, is a part of a human body movement system, plays a vital role in the human body and is difficult to replace. Because the regeneration capacity of the bone cells of the human body is extremely weak, the bone cells can only be limited to a small range of bone injury repair, and the regeneration and reconstruction are not of practical significance, once the bone is damaged, the bone cells are permanently lost and can only be replaced by scar repair, so that once the bone cells of the human body are seriously damaged, the normal function of the human body is greatly influenced, and even the motor function is lost.

Currently, for a small range of bone injuries, such as bone fracture loss and the like, clinical medicine mainly includes the following two types of repair treatments for human bones:

one is a method of repair using surrogate. Bone cement or biological materials are more commonly used to repair or bond the missing part. Bone cement, i.e., bone cement or bone cement, is made of a compound such as polymethylmethacrylate, and mainly serves to perform a bonding and fixing action. Although the bone cement has good repairing and fixing effects on human bones and can also realize long-term stabilization, researches prove that adverse reactions occur when approximately 1/3 patients are filled with the bone cement, most of the adverse reactions are sudden transient mild hypotension, and about 0.6 per thousand patients have sudden death due to circulatory failure, so that the adverse effects are large. Repair or bonding using biomaterials, however, has little adverse effect, but requires periodic replacement and maintenance, and has a high material cost.

And secondly, a method for quickly adhering and repairing broken bones is adopted. The traditional broken bone quick-adhesion repair mainly adheres one piece of broken bone to the position of the missing bone of a human body, so that the operation is complex and unstable. The existing bone fragment repairing method mainly carries out compression molding on the bone fragments to form a required bone shape, and then fills the bone fragments to the bone position missing from a human body, so that the bone fragments are more stable, and the operation is simple and convenient.

However, the existing bone pressing device has large volume, is heavy, is inconvenient to carry and use, is inconvenient to clean after an operation, and increases the inconvenience of medical staff.

Disclosure of Invention

In order to overcome at least one defect of the prior art, the invention provides the bone pressing device which is small in size, simple in structure and convenient to use and carry.

In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose:

the utility model provides a press bone device, includes the shaping cavity and locates the first device and the second biasing means of exerting pressure at shaping cavity both ends, first device and the second biasing means of exerting pressure respectively with shaping cavity threaded connection, be equipped with the cavity that is used for holding the broken bone piece in the shaping cavity, first inside of exerting pressure device and second biasing means is equipped with first extruded article and the second extruded article that is used for crowded crushing bone piece respectively, and the outer wall of first extruded article and second extruded article forms annular notch with between the inner wall of first device and the second biasing means of exerting pressure respectively, and first extruded article and second extruded article mutually support with the cavity respectively, make the broken bone piece extrude and form required shaping bone piece in the cavity.

Among this technical scheme, be equipped with the cavity that is used for holding garrulous bone piece in the shaping cavity, the inside shape of cavity is unanimous with the bone piece shape of required extrusion. After one of the pressure applying devices is fixedly installed with the molding cavity, the broken bone blocks are placed into the cavity, the adhesive is added, the other pressure applying device is screwed with the molding cavity in a rotating mode, the first extrusion piece and the second extrusion piece are arranged in the cavity and abut against the broken bone blocks from two ends, the broken bone blocks are extruded in the cavity, and finally the molded bone blocks with the same shape as the inner portion of the cavity are formed.

The two ends of the molding cavity are provided with the first pressure applying device and the second pressure applying device, the first pressure applying device and the second pressure applying device are respectively internally provided with the first extrusion piece and the second extrusion piece, so that strong pressurization can be formed at the two ends of the molding cavity, and the formed molded bone block is higher in density and firmer.

The shape of the chamber can be set according to the requirement, and can be round, square or other shapes.

Further, a handle for assisting screwing is arranged on the first pressing device and/or the second pressing device.

In the technical scheme, after the handle is arranged, the first/second pressing devices and the forming cavity are screwed or unscrewed more quickly, conveniently and labor-saving; on the other hand, the handle can effectively increase the force for screwing the pressure device and the molding cavity, so that the two ends of the molding cavity are pressed strongly.

Further, the first/second pressing device is detachably connected to the first/second pressing member.

The pressure device is detachably connected with the extrusion piece, so that the subsequent maintenance and cleaning are facilitated; and secondly, after the formed bone blocks are manufactured, the formed bone blocks are convenient to take out.

Further, a handle through hole is formed in the first pressure applying device and/or the second pressure applying device, the handle penetrates through the handle through hole, and the handle is abutted to the first/second extrusion piece in the first/second pressure applying device.

Through set up the handle through-hole in pressure device for under the condition that need not other connecting pieces of peripheral hardware, can be fixed in pressure device with the handle on, thereby simplify the structure of pressing the bone device.

The handle is connected with first/second extruded part, and in for the broken bone piece pressurization process, the one end of extruded part supports tight broken bone piece, and the other end supports tight handle, and then forms powerful strong pressure for the operator need not to exert too much power and can compress tightly the broken bone piece and compact.

Further, the first/second pressing member is a magnetic member.

Furthermore, an extrusion piece through hole is formed in the first/second pressing device, and the first/second extrusion piece is in magnetic attraction and abutting connection with the handle through the extrusion piece through hole.

The first/second extrusion piece is a magnetic piece, and the first/second extrusion piece is magnetically attracted with the handle, so that the first/second extrusion piece can be easily fixed in the pressure applying device, and is not easy to loosen and drop to lose, the connection between the first/second extrusion piece and the handle is greatly simplified, the operation is more convenient, and the carrying is also convenient.

Further, the first/second pressing device is non-magnetically connected with the first/second pressing member.

The first/second pressure applying device is connected with the first/second extrusion piece in a non-magnetic attraction manner, so that the first/second extrusion piece is positioned more accurately in the first/second pressure applying device and the handle.

Further, the presser through-hole is provided in the middle of the first/second pressing device.

Further, the handle is of a cylindrical structure, the forming cavity is hollow inside to form a through hole, and the cross section size of the handle is smaller than that of the through hole.

When the broken bone blocks are pressed to form the formed bone blocks, the handle can be detached from the pressing device and then is led in from one end of the forming cavity body to extrude the formed bone blocks in the forming cavity body, so that the operation is simplified, and the time is saved.

Furthermore, an internal thread is arranged in the first/second pressure applying device, an external thread is arranged on the forming cavity, two ends of the forming cavity are abutted by being screwed into the first/second pressure applying device, and the first/second extrusion piece enters a through hole of the forming cavity in the screwing process of the forming cavity.

Furthermore, one end part of the first/second pressure applying device is provided with an external thread, the other end of the first/second pressure applying device is provided with an internal thread, and the external thread of the first/second pressure applying device is matched with the internal thread of the second/first pressure applying device.

In this technical scheme, first pressure applying device's external screw thread matches with the internal screw thread of second pressure applying device, first pressure applying device's internal screw thread matches with the external screw thread of second pressure applying device, compress tightly broken bone piece in-process, the accessible continues to increase pressure applying device and design the extruded article in pressure applying device, the internal screw thread of the pressure applying device who increases matches with first/second pressure applying device's external screw thread and screws up, the extruded article that increases continues to extrude and crush the bone piece along with the screwing up of screw thread, make broken bone piece extruded more durable, the density nature is stronger, more firm. On the other hand, the pressing device on one side of the lower molding cavity can be detached first, then the pressing device is screwed into the external thread part of the other pressing device, and in the process of continuously screwing the thread, the extrusion piece in the pressing device continuously extrudes and pushes the molded bone block to move towards the side of the molding cavity where the pressing device is detached, so that the molded bone block is extruded and pushed out.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention has simple structure and small volume, and all the parts are detachably connected, thereby being convenient for carrying, using and cleaning.

(2) The first extrusion piece and the second extrusion piece are arranged to pressurize the bone fragments in the molding cavity, and the handle is used for assisting the first pressure applying device and the second pressure applying device to screw the molding cavity, so that the bone fragments are pressed by double-sided pressure in the molding cavity, and the molded bone fragments formed by extrusion have the characteristics of high density, high strength and strong stability.

(3) The first/second pressure applying device is fixed with the molding cavity through threads, and the handle is used for assisting the first/second pressure applying device to spin the molding cavity, so that broken bone blocks in the molding cavity can be pressed without excessive force, time and labor are saved, and operation is simplified.

(4) After the formed bone block is manufactured and formed, the formed bone block can be quickly taken out from the forming cavity body through the handle, and the handle plays a dual role.

Drawings

Fig. 1 is a schematic structural view after disassembly.

Fig. 2 is a schematic view of the assembled structure of the present invention.

Fig. 3 is a schematic view of the present invention after assembling one side thereof.

Fig. 4 is a schematic structural view of a molding cavity.

Fig. 5 is a schematic structural view of the pressing device.

Fig. 6 is a schematic structural view of the handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Example 1

As shown in fig. 1, a bone pressing device comprises a molding cavity 1, and a first pressing device 2 and a second pressing device 3 which are arranged at two ends of the molding cavity 1, wherein the first pressing device 2 and the second pressing device 3 are symmetrically arranged with the molding cavity 1 as a center. First biasing means 2 and second biasing means 3 respectively with 1 threaded connection of shaping cavity, be equipped with the cavity that is used for holding the garrulous bone piece in the shaping cavity 1, the inside of first biasing means 2 and second biasing means 3 is equipped with first extruded article 4 and the second extruded article 5 that are used for crowded crushing bone piece respectively, and first extruded article 4 and second extruded article 5 symmetry set up in shaping cavity 1. Annular notches A are formed between the outer walls of the first extrusion piece 4 and the second extrusion piece 5 and the inner walls of the first pressure applying device 2 and the second pressure applying device 3 respectively; and the first extrusion member 4 and the second extrusion member 5 respectively cooperate with the chamber to cause the pieces of comminuted bone to be extruded within the chamber to form the desired shaped pieces of bone.

In this technical scheme, be equipped with the cavity that is used for holding the garrulous bone piece in the shaping cavity 1, the inside shape of cavity is unanimous with the bone piece shape of required extrusion. After one of the

pressure applying devices

2 and 3 is fixedly installed with the molding cavity 1, the broken bone blocks are placed in the cavity, the adhesive is added, the other

pressure applying device

2 and 3 is screwed with the molding cavity 1 in a rotating mode, the first extrusion piece 4 and the second extrusion piece 5 are in the cavity and abut against the broken bone blocks from two ends, the broken bone blocks are extruded in the cavity, and finally the molded bone blocks with the same shape as the inner shape of the cavity are formed.

The two ends of the molding cavity 1 are provided with the first pressing device 2 and the second pressing device 3, the first pressing device 2 and the second pressing device 3 are internally provided with the first extrusion piece 4 and the second extrusion piece 5 respectively, so that strong pressurization can be formed on the two ends of the molding cavity 1, and the formed molded bone block has higher density and is firmer.

As shown in fig. 4, the shape of the cavity may be configured according to the desired bone shape, and may be circular, square, or other shapes.

As shown in fig. 3, the first pressing device 2 and/or the second pressing device 3 is provided with a handle 6 for assisting screwing.

In the technical scheme, after the handle 6 is arranged, the first/second

pressing devices

2 and 3 and the molding cavity 1 are screwed or unscrewed more quickly, conveniently and labor-saving; on the other hand, the handle 6 can also effectively increase the force for screwing the pressure device and the molding cavity, so that strong pressure is formed at two ends of the molding cavity 1.

As shown in fig. 1 and 3, the first/second

pressing means

2, 3 is detachably connected to the first/

second presser

4, 5.

The

pressure applying devices

2 and 3 are detachably connected with the

extrusion parts

4 and 5, so that the subsequent maintenance and cleaning are facilitated; and secondly, after the formed bone blocks are manufactured, the formed bone blocks are convenient to take out.

As shown in fig. 5, a handle through hole is provided in the first pressure applying means 2 and/or the second pressure applying means 3, the handle passes through the handle through hole, and abuts against the first/second pressing

members

4, 5 in the first/second

pressure applying means

2, 3.

The handle through holes are arranged in the

pressing devices

2 and 3, so that the handle 6 can be fixed on the

pressing devices

2 and 3 without other connecting pieces arranged outside, and the structure of the bone pressing device is simplified.

Handle 6 and first/second

extruded piece

4, 5 butt, at for the broken bone piece pressurization in-process, the one end of extruded

piece

4, 5 supports tight broken bone piece, and the other end supports tight handle 6, and then forms powerful strong pressure for the operator need not to apply too much power and can compress tightly the compaction with broken bone piece.

Wherein the first/second pressing member is a magnetic member. Extrusion part through holes are formed in the first/second

pressing devices

2 and 3, and the first/

second extrusion parts

4 and 5 are magnetically attracted and abutted with the handle 6 through the extrusion part through holes.

First/second

extruded article

4, 5 are the magnetism spare, and first/second

extruded article

4, 5 and handle 6 magnetism inhale and be connected, can easily be fixed in

pressure device

2, 3 with first/second

extruded article

4, 5 in, and difficult not hard up and drop the loss, simplified first/second

extruded article

4, 5 and handle 6 between be connected greatly, make the operation more convenient, also portable.

Wherein the first/second

pressure applying means

2, 3 are non-magnetically connected to the first/second pressing

member

4, 5. The first/second

pressure applying devices

2 and 3 are connected with the first/

second extrusion parts

4 and 5 in a non-magnetic attraction way, so that the first/

second extrusion parts

4 and 5 are positioned in the first/second

pressure applying devices

2 and 3 and the handle 6 more accurately.

Wherein the extrusion through-hole is provided in the middle of the first/second

pressing devices

2, 3.

Wherein the handle 6 is shown as having a cylindrical configuration, as shown in figure 6.

The forming cavity 1 is hollow to form a through hole, and the cross section size of the handle 6 is smaller than that of the through hole. When the broken bone blocks are pressed to form the formed bone blocks, in order to take out the formed bone blocks conveniently, the handle 6 can be detached from the

pressing devices

2 and 3 and then is led in from one end of the forming cavity 1, and the formed bone blocks in the forming cavity 1 are extruded and pushed out, so that the operation is simplified, and the time is saved.

As shown in fig. 3 and 4, the first/second

pressing devices

2 and 3 are internally provided with internal threads, and the molding cavity 1 is provided with external threads. The two ends of the molding cavity 1 are in threaded fit with the first/second

pressure applying devices

2 and 3 respectively and are screwed in the first/second

pressure applying devices

2 and 3, the two ends of the molding cavity 1 are abutted through screwing in the first/second

pressure applying devices

2 and 3, the first/

second extrusion pieces

4 and 5 enter the through holes of the molding cavity 1 in the screwing-in process of the molding cavity 1, and the through holes on the two sides of the molding cavity 1 respectively abut against the broken bone blocks in the middle of the molding cavity 1.

As shown in fig. 1, 3 and 5, one end of the first/second

pressure applying device

2, 3 is further provided with an external thread, the external thread is matched with an internal thread of the other pressure applying device, in the process of compressing the broken bone blocks, the pressure applying devices and the extrusion pieces designed in the pressure applying devices can be continuously added, the internal thread of the added pressure applying devices is matched with the external thread of the first/second

pressure applying device

2, 3 for screwing, and the added extrusion pieces continuously extrude the broken bone blocks along with the screwing of the threads, so that the broken bone blocks are extruded more firmly, and have stronger density and are firmer. When the formed bone block needs to be extruded and pushed out, the pressing device on one side of the forming cavity 1 can be detached firstly, then the pressing device is screwed into the external thread part of the other pressing device, and in the process of continuously screwing the thread, the extrusion part in the pressing device continuously extrudes and pushes the formed bone block to move towards one side of the forming cavity 1 from which the pressing device is detached, so that the formed bone block is extruded and pushed out.

The operation steps of this embodiment are as follows:

(1) as shown in fig. 1, the first/second

pressure applying devices

2 and 3, the handle 6, the first/

second extrusion pieces

4 and 5 and the molding cavity are detachable, firstly, the handle 6 is inserted into the handle through hole of the first pressure applying device 2, then the first extrusion piece 4 is put into the extrusion piece through hole of the first pressure applying device 2, and then the first pressure applying device 2 is screwed with one end of the molding cavity 1 in a rotating way; the through hole of the extrusion part is communicated with the through hole of the handle, and the first extrusion part 4 and the handle 6 are magnetically attracted, so that the first extrusion part can be stably fixed in the through hole of the extrusion part; wherein, the handle 6 can be firstly inserted into the handle through hole of the second pressure applying device 3, then the second extrusion piece 5 is put into the extrusion piece through hole of the second pressure applying device 3, and then the second pressure applying device 3 is screwed with one end of the molding cavity 1 in a rotating way, as shown in fig. 3; only one end of the molding cavity 1 is assembled with the stroke sealing structure;

(2) on the basis of the step (1), putting the broken bone blocks and the adhesive liquid into the forming cavity 1 from the other opening end, and then screwing the opening end of the forming cavity 1 and a pressure device in a rotating manner according to the method in the step (1); in the process of screwing, the broken bone blocks are extruded by the overstocking pieces at two sides in the molding cavity 1, so as to be molded by pressing; furthermore, a pressure applying device and an extrusion piece can be continuously added to one end part of the external thread of the pressure applying device, and the extrusion piece in the pressure applying device continuously extrudes into the molding cavity 1, so that the crushed bone pieces are extruded more tightly and firmly;

(3) pressing and molding the broken bone blocks, unscrewing the first and second

pressure applying devices

2 and 3 on two sides of the molding cavity 1, and knocking out the molded bone blocks or pushing out the molded bone blocks from one end of the molding cavity 1 to the other end by using a handle 6; or one of the pressure applying devices can be detached and screwed into the external thread of the other pressure applying device, and the extrusion piece in the pressure applying device continuously extrudes and pushes the molded bone block to move towards the end of the molding cavity 1 without the pressure applying device, so that the molded bone block is extruded and pushed out;

(4) when in cleaning and disinfection, the components are small in size and can be disassembled, so that the cleaning can be quickly carried out.

Claims

1. A bone pressing device is characterized by comprising a molding cavity (1), a first pressing device (2) and a second pressing device (3) which are arranged at the two ends of the molding cavity (1), the first pressure applying device (2) and the second pressure applying device (3) are respectively in threaded connection with the molding cavity (1), a cavity used for containing broken bone blocks is arranged in the molding cavity (1), a first extrusion piece (4) and a second extrusion piece used for extruding and crushing the bone blocks are respectively arranged in the first pressure applying device (2) and the second pressure applying device (3), annular notches (A) are respectively formed between the outer walls of the first extrusion piece (4) and the second extrusion piece (5) and the inner walls of the first pressure applying device (2) and the second pressure applying device (3), the first extrusion piece (4) and the second extrusion piece (5) are respectively matched with the chamber, so that the broken bone blocks are extruded in the chamber to form the required molded bone blocks;

and the first pressure applying device (2) and the second pressure applying device (3) are provided with handles (6) for assisting in screwing.

2. A bone compression device according to claim 1, characterised in that the first/second pressure applicator means (2, 3) is detachably connected to the first/second pressure extrusion (4, 5).

3. A bone compression device according to claim 1, characterised in that a handle through hole is provided in the first and/or second pressure applying means (2, 3), the handle (6) passing through the handle through hole and abutting the first/second pressing member (4, 5) in the first/second pressure applying means (2, 3).

4. A bone compression device according to claim 1 or 2, characterised in that the first/second expression members (4, 5) are magnetic members.

5. A bone pressing device according to claim 4, characterized in that the first/second pressing device (2, 3) is provided with a pressing piece through hole, and the first/second pressing piece (4, 5) is magnetically abutted with the handle (6) through the pressing piece through hole; the first/second pressure applying devices (2, 3) are connected with the first/second pressing pieces (4, 5) in a non-magnetic attraction way.

6. A bone pressing device according to claim 5, characterized in that the extrusion through hole is provided in the middle of the first/second pressing means (2, 3).

7. A bone compression device according to claim 1, characterized in that said handle (6) is of cylindrical configuration, said shaped cavity (1) being internally hollow, forming a through hole, said handle (6) having a cross-sectional dimension smaller than the cross-sectional dimension of the through hole.

8. The bone pressing device according to claim 7, characterized in that the first/second pressing device (2, 3) is internally provided with an internal thread, the molding cavity (1) is provided with an external thread, two ends of the molding cavity (1) are abutted by screwing into the first/second pressing device (2, 3), and the first/second pressing piece (4, 5) enters into a through hole of the molding cavity (1) in the screwing process of the molding cavity (1).

9. A bone compression device according to claim 1, characterized in that the first/second pressure means (2, 3) is provided with an external thread at one end and an internal thread at the other end, and that the external thread of the first/second pressure means (2, 3) matches the internal thread of the second/first pressure means (3, 2).