CN213310212U - Bone cement auxiliary injection device for orthopedic surgery - Google Patents
Bone cement auxiliary injection device for orthopedic surgery Download PDFInfo
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- CN213310212U CN213310212U CN202021838754.1U CN202021838754U CN213310212U CN 213310212 U CN213310212 U CN 213310212U CN 202021838754 U CN202021838754 U CN 202021838754U CN 213310212 U CN213310212 U CN 213310212U
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Abstract
The utility model discloses a bone cement auxiliary injection device for orthopedic surgery, which comprises an inner rod of a bone guider and an outer rod of the bone guider, wherein the outer rod of the bone guider comprises a hollow guide pipe and a second boosting handle communicated with the hollow guide pipe, a water injection cavity is arranged inside the second boosting handle, a movable ring body is sleeved on the upper part of the hollow guide pipe in a sliding manner, the movable ring body is connected with the bottom of the second boosting handle through a link mechanism circumferentially arranged on the outer side of the hollow guide pipe, the outer side of the movable ring body is circumferentially and elastically connected with a sucker, and a fusiform air bag fixed on the outer wall of the hollow guide pipe is arranged right above the movable ring body; the utility model can not only fix the whole device well in the bone cement injection process, and ensure the smooth proceeding of the bone cement operation; and the viscosity of the bone cement at the two ends of the outer rod of the bone guide device can be ensured to be at the optimal value within a certain time, and the injection effect of the bone cement operation is ensured.
Description
Technical Field
The application relates to the field of medical auxiliary instruments, in particular to a bone cement auxiliary injection device for orthopedic surgery.
Background
Bone cement is a common name of bone cement, is a medical material used for orthopedic surgery, and has a popular name due to partial physical properties and appearance and properties after solidification rather like white cement for building and decoration.
With the progress of aging, osteoporotic fracture becomes a common skeletal disease that seriously affects the health of the middle-aged and elderly people. The minimally invasive percutaneous vertebroplasty/percutaneous kyphoplasty can remarkably relieve pain of a patient with vertebral fracture, improve the quality of life and remarkably improve the survival rate, and is widely applied clinically.
At present, when a patient is treated by a bone cement related injection device in a hospital, a guider passes through a puncture needle sleeve to realize smooth injection of the bone cement. However, the puncture needle cannula may be fixed to the patient in a loose manner (i.e., poor stability) during the bone cement injection, which may interrupt the bone cement injection and thus may impair smooth operation. Furthermore, during the injection of the bone cement, the bone cement at the two ends of the outer rod of the bone guide is contacted with air, so that the setting is accelerated. Under the condition of low or high temperature, the viscosity of the bone cement at the two end parts of the bone cement can be changed, thereby influencing the injection effect of the bone cement operation.
Disclosure of Invention
The utility model discloses the purpose is: the utility model provides an injection device is assisted to bone cement for bone surgery, can not only carry out fine fixed to whole device at bone cement injection in-process for whole injection process is stable very, guarantees going on smoothly of bone cement operation. Moreover, the viscosity of the bone cement at the two ends of the outer rod of the bone guide device can be ensured to be at the optimal value within a certain time, and the injection effect of the bone cement operation is ensured.
The technical scheme of the utility model is that: a bone cement auxiliary injection device for orthopedic surgery comprises a bone guide inner rod and a bone guide outer rod, wherein the bone guide inner rod comprises a bone guide push rod and a first boosting handle positioned at the top of the bone guide push rod; the bone guider outer rod comprises a hollow guide tube and a second boosting handle communicated with the hollow guide tube, the bone guider inner rod is inserted into an inner cavity in the middle of the bone guider outer rod, a water injection cavity is formed in the second boosting handle, a movable ring body is sleeved on the upper portion of the hollow guide tube in a sliding mode, the movable ring body is connected with the bottom of the second boosting handle through a connecting rod mechanism circumferentially arranged on the outer side of the hollow guide tube, a sucker is elastically connected to the outer side of the movable ring body in the circumferential direction, an air guide tube is arranged on the side wall of the sucker, and a fusiform air bag fixed to the outer wall of the hollow guide tube is arranged right above the movable ring body.
Preferably, the middle part of the outer rod of the bone guide device is provided with an inner cavity of a cylindrical structure for accommodating the inner rod of the bone guide device, and the aperture of the inner cavity is equal to the diameter of the inner rod of the bone guide device. The inner cavity is convenient for accommodating or pushing the inner rod of the bone guide device, so that smooth injection of bone cement is ensured; meanwhile, the bore diameter of the inner cavity is equal to the diameter of the inner rod of the bone guide device, so that the bone cement in the inner cavity is injected into a patient body to the maximum extent, and the waste of the bone cement is reduced.
Preferably, the upper portion of the handheld portion of second boosting handle is equipped with the water injection pipe, the water injection pipe is linked together with the water injection chamber, and the free end threaded connection of water injection pipe has the pipe cap. Wherein, warm water with the temperature of 21 ℃ is injected into the water injection cavity in the second boosting handle through the water injection pipe. Before the bone cement is injected into a patient, when the front end of the inner rod of the bone guide device is inserted into the front end part of the cavity of the second boosting handle, the phenomenon that the bone cement at the front end of the inner cavity of the second boosting handle is solidified due to the fact that the placing time is relatively too long (the general time is within 5 min) can be effectively reduced due to the use of warm water. Therefore, when a doctor injects bone cement into the body of a patient by pushing the inner rod of the bone guide, the whole pushing process is smooth, no blocking feeling exists, and the hand feeling and the control on the injection speed of the doctor during injection are ensured.
Preferably, a plurality of connecting pieces perpendicular to the moving ring body are circumferentially arranged on the side wall of the moving ring body, a round mounting piece is connected to the bottom of each connecting piece in a spring mode, a sucker is connected to the bottom of each round mounting piece in an adhesive mode, and a pipe plug is arranged at the free end portion of each air guide pipe. Wherein, under the effect of spring force, can catch up with the air in the sucking disc of patient's skin contact for the sucking disc can firmly adsorb on patient's skin surface, thereby will the utility model discloses firmly fix on patient's health, avoided the phenomenon that bone director outer pole takes place to incline or empty, guaranteed the stability of operation when doctor's later stage is patient's injection bone cement. The air duct and the pipe plug are matched for use, so that air can be conveniently injected into the sucker, and a doctor can take the utility model down from the body of a patient under the condition that the pain of the patient is not increased.
Preferably, the fusiform air bag is connected to the outer wall of the hollow guide tube in an adhesive manner, the side wall of the fusiform air bag is connected with an air duct communicated with the inner cavity of the fusiform air bag, and the other end of the air duct is communicated with the medical latex inflatable ball. The doctor manually extrudes the medical latex inflatable ball to fill air into the fusiform air bag, so that the fusiform air bag is in an expansion state to push the connecting rod mechanism to expand outwards, and meanwhile, the movable ring body is pushed to move horizontally along the direction of the hollow guide tube. Meanwhile, the air bag can indirectly extrude habits after being expanded, so that the suction cup can be firmly adsorbed on the body of a patient (the skin near a wound part), the aim of firmly fixing the outer rod of the bone guider with different insertion depths on the body of the patient is fulfilled, and the stability during bone cement injection is ensured.
Preferably, the lower part of the second boosting handle and the top of the movable ring body are circumferentially provided with a plurality of groups of mounting lugs for mounting the link mechanism. The arrangement of the mounting lug facilitates the mounting and dismounting of the connecting rod mechanism and the maintenance of the connecting rod mechanism.
Compared with the prior art, the beneficial effects of the utility model are that:
1. warm water with the temperature of 21 ℃ is injected into a water injection cavity in the second boosting handle through a water injection pipe. Before the bone cement is injected into a patient, when the front end of the inner rod of the bone guide device is inserted into the front end part of the cavity of the second boosting handle, the warm water is used for effectively reducing the phenomenon that the bone cement at the front end of the inner cavity of the second boosting handle is solidified due to the relatively overlong placing time (the general time is within 5 min), and the viscosity of the bone cement at the two ends of the outer rod of the bone guide device is ensured to be at the optimal value within a certain time. Thereby guaranteed that the doctor when injecting into the patient internal with bone cement through promoting the bone director in, whole promotion process is more smooth and easy, does not have the sense of blocking, the injection effect of assurance bone cement operation of feeling and the control of injection speed when guaranteeing the doctor injection.
2. Under the effect of spring force, can catch up with the air in the sucking disc of patient's skin contact for the sucking disc can firmly adsorb on patient's skin surface, thereby will the utility model discloses firmly fix on patient's health, avoided the phenomenon that bone director outer pole takes place to incline or empty, guaranteed the stability of operation when doctor's later stage is patient's injection bone cement. The air duct and the pipe plug are matched for use, so that air can be conveniently injected into the sucker, a doctor can take the utility model off from the body of a patient without increasing the pain of the patient,
3. the doctor manually extrudes the medical latex inflatable ball to fill air into the fusiform air bag, so that the fusiform air bag is in an expansion state to push the connecting rod mechanism to expand outwards, and meanwhile, the movable ring body is pushed to move horizontally along the direction of the hollow guide tube. Meanwhile, the air bag can indirectly extrude habits after being expanded, so that the suction cup can be firmly adsorbed on the body of a patient (the skin near a wound part), the aim of firmly fixing the outer rod of the bone guider with different insertion depths on the body of the patient is fulfilled, and the stability during bone cement injection is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a partial structural schematic diagram of the present invention;
FIG. 3 is a schematic view of the connection of the partial structure of the present invention;
fig. 4 is a schematic longitudinal sectional view of a partial structure of the present invention.
Wherein: 1 bone guider inner rod, 2 bone guider outer rods, 3 bone guider push rods, 4 first boosting handles, 5 hollow guide tubes, 6 second boosting handles, 7 water injection cavities, 8 movable ring bodies, 9 connecting rod mechanisms, 10 sucking discs, 11 fusiform air bags, 12 water injection tubes, 13 connecting pieces, 14 circular mounting pieces, 15 medical latex inflatable balls and 16 mounting lug pieces.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions employed in the examples may be further adjusted according to specific conditions, and the conditions not specified are generally conditions in routine experiments.
As shown in fig. 1 to 4, an auxiliary bone cement injection device for orthopedic surgery comprises a bone guide inner rod 1 and a bone guide outer rod 2, wherein the bone guide inner rod 1 comprises a bone guide push rod 3 and a first boosting handle 4 positioned at the top of the bone guide push rod; bone director outer pole 2 includes hollow stand pipe 5 and the second boosting handle 6 that is linked together with it, peg graft in the inner chamber at bone director outer pole 2 middle part in 1 pole in the bone director, water injection chamber 7 has been seted up to the inside of second boosting handle 6, the upper portion of hollow stand pipe 5 is slided and has been cup jointed and is removed ring body 8, it is connected at the link mechanism 9 in the hollow stand pipe 5 outside through circumference setting to remove ring body 8 and second boosting handle 6's bottom, the outside circumference elastic connection who removes ring body 8 has sucking disc 10, be equipped with the air duct on the lateral wall of sucking disc 10, be equipped with directly over removing ring body 8 and fix the fusiform gasbag 11 at hollow stand pipe 5 outer wall.
In this embodiment, the middle part of the outer rod 2 of the bone guide is provided with an inner cavity for accommodating the cylindrical structure of the inner rod 1 of the bone guide, and the aperture of the inner cavity is equal to the diameter of the inner rod 1 of the bone guide. The inner cavity is convenient for accommodating or pushing the inner rod 1 of the bone guide device, so that smooth injection of bone cement is ensured; meanwhile, the diameter of the inner cavity is equal to the diameter of the inner rod 1 of the bone guide device, so that the bone cement in the inner cavity is injected into the body of a patient to the maximum extent, and the waste of the bone cement is reduced.
In this embodiment, a water injection pipe 12 is disposed on the upper portion of the handle of the second boosting handle 6, the water injection pipe 12 is communicated with the water injection cavity 7, and a cap is screwed to the free end of the water injection pipe 12. Wherein warm water at a temperature of 21 ℃ is injected into the water injection cavity 7 in the second boost handle 6 through the water injection pipe 12. Before the bone cement is injected into a patient, when the front end of the inner rod 1 of the bone guide device is inserted into the front end part of the cavity of the second boosting handle 6, the phenomenon that the bone cement at the front end of the cavity of the second boosting handle 6 is solidified due to the fact that the placing time is relatively overlong (the general time is within 5 min) can be effectively reduced due to the use of warm water. Therefore, when a doctor injects bone cement into the body of a patient by pushing the inner rod 1 of the bone guide device, the whole pushing process is smooth, no blocking feeling exists, and the hand feeling and the control on the injection speed of the doctor during injection are ensured.
In this embodiment, a plurality of connecting pieces 13 perpendicular to the side wall of the movable ring body 8 are circumferentially arranged on the side wall of the movable ring body, a circular mounting piece 14 is connected to the bottom of the connecting piece 13 through a spring, a suction cup 10 is glued to the bottom of the circular mounting piece 14, and a pipe plug is arranged at the free end of the air guide pipe. Wherein, under the effect of spring force, can catch up with the air in the sucking disc 10 of patient's skin contact for sucking disc 10 can firmly adsorb on patient's skin surface, thereby will the utility model discloses firmly fix on patient's health, avoided the phenomenon that bone director outer pole 2 takes place to incline or empty, guaranteed the stability of operation when doctor's later stage is patient's injection bone cement. The air duct and the pipe plug are matched for use, so that air can be conveniently injected into the sucker 10, and a doctor can take the utility model down from the body of a patient under the condition that the pain of the patient is not increased.
In this embodiment, the fusiform air bag 11 is glued on the outer wall of the hollow guide tube 5, the side wall of the fusiform air bag 11 is connected with an air duct communicated with the inner cavity of the fusiform air bag, and the other end of the air duct is communicated with the medical latex inflatable ball 15. The doctor manually squeezes the medical latex inflatable ball 15 to fill air into the shuttle-shaped air bag 11, so that the shuttle-shaped air bag 11 is in an inflated state to push the connecting rod mechanism 9 to expand outwards, and meanwhile, the movable ring body 8 is pushed to move horizontally along the direction of the hollow guide tube 5. Meanwhile, the air bag can indirectly extrude the habit after being expanded, so that the suction cup 10 can be firmly adsorbed on the body of a patient (the skin near a wound part), the aim of firmly fixing the bone guider outer rod 2 with different insertion depths on the body of the patient is fulfilled, and the stability during bone cement injection is ensured.
In this embodiment, the lower portion of the second boosting handle 6 and the top portion of the movable ring body 8 are circumferentially provided with a plurality of sets of mounting lugs 16 for mounting the link mechanism 9. The installation lug 16 is convenient for the installation and the disassembly of the connecting rod mechanism 9 and the maintenance of the connecting rod mechanism.
Use the utility model discloses before, pour into the warm water that the injection temperature is 21 ℃ into the water injection chamber 7 in the second boosting handle 6 through water injection pipe 12 earlier, the pipe cap is installed to the water injection after finishing. Then, the prepared bone cement is injected into the hollow guide tube 5 of the bone guide device outer rod 2 through the injector, and before the bone cement is injected into the body of a patient, when the front end of the bone guide device inner rod 1 is inserted into the front end part of the cavity of the second boosting handle 6, the use of the warm water can effectively reduce the phenomenon that the bone cement at the front end of the cavity of the second boosting handle 6 is solidified due to the fact that the placing time is relatively overlong (the general time is within 5 min). The viscosity of the bone cement at the two ends of the outer rod 2 of the bone guider is ensured to be at the optimal value in a certain time. Thereby guaranteed that the doctor when injecting into the patient internal with bone cement through promoting bone director inner rod 1, whole promotion process is more smooth and easy, does not have the sense of blocking, and the injection effect of assurance bone cement operation is guaranteed to the handle accuse to the injection speed to the feel when guaranteeing the doctor injection.
Furthermore, after the doctor inserts the bone guide outer rod 2 into the patient, the doctor manually squeezes the medical latex inflatable ball 15 to inflate the air into the shuttle-shaped air bag 11, so that the shuttle-shaped air bag 11 is in an inflated state to push the link mechanism 9 to expand outwards and push the movable ring body 8 to move horizontally along the hollow guide tube 5. Meanwhile, the air bag can indirectly extrude the habit after being expanded, so that the suction cup 10 can be firmly adsorbed on the body of a patient (the skin near a wound part), and the purpose of firmly fixing the bone guider outer rod 2 with different insertion depths on the body of the patient is realized by matching with the use of a spring, thereby ensuring the stability during the injection of bone cement.
In addition, under the effect of spring force, can catch up with the air in the sucking disc 10 of patient's skin contact for sucking disc 10 can firmly adsorb on patient's skin surface, thereby will the utility model discloses firmly fix on patient's health, avoided the phenomenon that bone director outer pole 2 takes place to incline or empty, guaranteed the stability of operation when doctor's later stage is patient's injection bone cement. The air duct and the pipe plug are matched for use, so that air can be conveniently injected into the sucker 10, and a doctor can take the utility model down from the body of a patient under the condition that the pain of the patient is not increased.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. In addition to the above embodiments, other embodiments of the present invention are also possible. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.
Claims (6)
1. The utility model provides an injection device is assisted to bone cement for bone surgery, includes pole (1) and bone guide ware outer pole (2) in the bone guide ware, its characterized in that: the inner rod (1) of the bone guide comprises a bone guide push rod (3) and a first boosting handle (4) positioned at the top of the bone guide push rod; the bone guider outer rod (2) comprises a hollow guide tube (5) and a second boosting handle (6) communicated with the hollow guide tube, the bone guider inner rod (1) is inserted into an inner cavity at the middle part of the bone guider outer rod (2), a water injection cavity (7) is formed in the second boosting handle (6), a movable ring body (8) is sleeved on the upper part of the hollow guide tube (5) in a sliding mode, the movable ring body (8) is connected with the bottom of the second boosting handle (6) through a connecting rod mechanism (9) circumferentially arranged on the outer side of the hollow guide tube (5), a sucker (10) is elastically connected to the outer side of the movable ring body (8) in the circumferential direction, an air guide tube is arranged on the side wall of the sucker (10), and a fusiform air bag (11) fixed on the outer wall of the hollow guide tube (5) is arranged right above the movable ring body (8).
2. The bone cement auxiliary injection device for orthopedic surgery according to claim 1, characterized in that: the middle part of the outer rod (2) of the bone guide device is provided with an inner cavity of a cylindrical structure for accommodating the inner rod (1) of the bone guide device, and the aperture of the inner cavity is equal to the diameter of the inner rod (1) of the bone guide device.
3. The bone cement auxiliary injection device for orthopedic surgery according to claim 1, characterized in that: the upper portion of the handheld portion of second boosting handle (6) is equipped with water injection pipe (12), water injection pipe (12) are linked together with water injection chamber (7), and the free tip threaded connection of water injection pipe (12) has the pipe cap.
4. The bone cement auxiliary injection device for orthopedic surgery according to claim 1, characterized in that: remove on the lateral wall of ring body (8) circumference be equipped with a plurality of rather than mutually vertically connection piece (13), the bottom spring coupling of connection piece (13) has circular installation piece (14), the bottom of circular installation piece (14) is glued and is had sucking disc (10), just the free end of air duct is equipped with the stopcock.
5. The bone cement auxiliary injection device for orthopedic surgery according to claim 1, characterized in that: the fusiform air bag (11) is connected to the outer wall of the hollow guide tube (5) in an adhesive mode, an air guide tube communicated with the inner cavity of the fusiform air bag is connected to the side wall of the fusiform air bag (11), and the other end of the air guide tube is communicated with the medical latex inflatable ball (15).
6. The bone cement auxiliary injection device for orthopedic surgery according to claim 1, characterized in that: the lower part of the second boosting handle (6) and the top of the movable ring body (8) are circumferentially provided with a plurality of groups of mounting lugs (16) for mounting the link mechanism (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021838754.1U CN213310212U (en) | 2020-08-28 | 2020-08-28 | Bone cement auxiliary injection device for orthopedic surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021838754.1U CN213310212U (en) | 2020-08-28 | 2020-08-28 | Bone cement auxiliary injection device for orthopedic surgery |
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| Publication Number | Publication Date |
|---|---|
| CN213310212U true CN213310212U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021838754.1U Active CN213310212U (en) | 2020-08-28 | 2020-08-28 | Bone cement auxiliary injection device for orthopedic surgery |
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| Country | Link |
|---|---|
| CN (1) | CN213310212U (en) |
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2020
- 2020-08-28 CN CN202021838754.1U patent/CN213310212U/en active Active
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