CN111419381A - Zero-degree bone cement pushing and injecting sleeve and zero-degree bone cement pushing and injecting device - Google Patents

Zero-degree bone cement pushing and injecting sleeve and zero-degree bone cement pushing and injecting device Download PDF

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Publication number
CN111419381A
CN111419381A CN202010375346.5A CN202010375346A CN111419381A CN 111419381 A CN111419381 A CN 111419381A CN 202010375346 A CN202010375346 A CN 202010375346A CN 111419381 A CN111419381 A CN 111419381A
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China
Prior art keywords
bone cement
sleeve
zero
main body
degree
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Pending
Application number
CN202010375346.5A
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Chinese (zh)
Inventor
徐伟
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Zhongshan Shiyitang Medical Equipment Co ltd
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Zhongshan Shiyitang Medical Equipment Co ltd
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Priority to CN202010375346.5A priority Critical patent/CN111419381A/en
Publication of CN111419381A publication Critical patent/CN111419381A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7061—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant for stabilising vertebrae or discs by improving the condition of their tissues, e.g. using implanted medication or fluid exchange
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
    • A61B17/8816—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by the conduit, e.g. tube, along which fluid flows into the body or by conduit connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
    • A61B17/8825—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by syringe details
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A61B17/8833—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A61B17/8833—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means
    • A61B17/8836—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means for heating, cooling or curing of bone cement or fluid fillers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/564—Methods for bone or joint treatment

Abstract

The invention discloses a zero-degree bone cement injection sleeve and a zero-degree bone cement injector, wherein the bone cement injection sleeve comprises a transparent sleeve main body, the upper end of the sleeve main body is provided with a feed inlet capable of filling bone cement into the sleeve main body, the lower end of the sleeve main body is provided with an injection port capable of pushing out the bone cement, the outer side wall of the sleeve main body is provided with a cooling device mounting area and an observation area capable of observing the bone cement allowance inside the sleeve main body, and the cooling device mounting area is provided with a cooling device; the zero-degree bone cement injector comprises a sleeve nut, a spiral injection rod and the zero-degree bone cement injection sleeve. The zero-degree bone cement injector adopts a mode of screwing the spiral injection rod to inject bone cement, the injection process can be realized by observing the residual amount of the bone cement in the sleeve main body through the observation area, the amount of the injected bone cement in an operation can be accurately grasped, and an operator does not need to exert force all the time, so that the zero-degree bone cement injector is very convenient.

Description

Zero-degree bone cement pushing and injecting sleeve and zero-degree bone cement pushing and injecting device
Technical Field
The invention relates to the technical field of bone cement injection, in particular to a zero-degree bone cement injection sleeve and a zero-degree bone cement injector.
Background
Percutaneous vertebroplasty is a treatment operation developed in recent ten years and suitable for vertebral body compression pain caused by senile osteoporosis, compression fracture, primary or metastatic tumor of vertebral body, myeloma and vertebral body pain caused by invasive hemangioma of vertebral body. The method is to inject bone cement into a pathological vertebral body through a percutaneous puncture way under the guidance of various images so as to prevent the vertebral body from being compressed and collapsed due to the influence of various factors and relieve or alleviate the pain of a patient.
Research indicates that at normal temperature, the bone cement is still in a rarefied stage, the viscosity of the bone cement is low, and the fluidity is high, so that if the bone cement is injected in the rarefied stage, the leakage rate of the bone cement is more than 50%; the bone cement is in a viscous stage, and particularly, when the bone cement is injected in a high-viscosity state, the leakage rate can be reduced to about 10 percent; after mixing for more than 10min, no leakage of cement was observed when the cement was injected at high viscosity (dough phase). Therefore, the viscosity of the bone cement is a key factor influencing the leakage of the bone cement, the whole polymerization time of the bone cement is inversely proportional to the temperature, the lower the temperature is, the longer the polymerization time is, the dough period is prolonged, and the control of the viscosity of the bone cement during injection is a key link for preventing the leakage of the bone cement.
In the prior art, the common way to extend the cement polymerization process is: the polymerization process of the bone cement is prolonged by refrigerating and cooling the bone cement in advance, but the polymerization process of the bone cement can still be directly influenced by the room temperature (generally 18-25 ℃) of an operating room in practical application, so that the polymerization process of the bone cement cannot be obviously prolonged.
To address the above-mentioned problems, the invention of application No. 201611196392.9 discloses a bone cement bolus device comprising: the bone cement pipe is used for placing bone cement; one end of the bone cement pipe is an open end, the open end is provided with a pushing and injecting mechanism, the other end of the bone cement pipe is a closed end, and the closed end is provided with a circulation hole for circulation of bone cement; an outer pipe wall is arranged around the outer side of the bone cement pipe; a cavity is formed between the outer tube wall and the outer side wall of the bone cement tube and is used for placing a condensing agent, so that the bone cement can be maintained to be used in a low-temperature environment for a long time. However, this device also has problems in that, since the condensing agent completely surrounds the bone cement tube, it affects the view, and it is difficult to judge the remaining amount of bone cement in the bone cement tube and the amount of bone cement that has been injected during the injection of bone cement; in addition, the pushing mechanism adopts a piston type direct pushing mechanism, the resistance is large in the pushing process, an operator must push and press the piston rod all the time in the whole pushing process, fatigue is easy to occur, and the amount of injected bone cement is difficult to control.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a zero-degree bone cement injection cannula capable of ensuring that the bone cement therein is maintained at a lower temperature for a longer time and facilitating the determination of the injection amount.
The invention also aims to provide the zero-degree bone cement injection device which comprises the zero-degree bone cement injection sleeve, is convenient and labor-saving to use and is beneficial to controlling injection amount.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the utility model provides a sleeve pipe is pushed to zero degree bone cement, its includes transparent sleeve pipe main part, the upper end of sleeve pipe main part is provided with the feed inlet that can pack into bone cement into to it, the lower extreme of sleeve pipe main part is provided with the injection mouth that can push out bone cement, be provided with the viewing area of cooling device installing zone and the bone cement surplus that can observe inside on the lateral wall of sleeve pipe main part, the cooling device installing zone be provided with cooling device.
Preferably, the cooling device includes a housing disposed on an outer sidewall of the casing main body, a cavity is formed inside the housing or between the housing and the casing main body, and a condensing agent is disposed in the cavity.
Preferably, the number of the shells is at least two, each shell is arranged on the outer side wall of the sleeve main body at intervals, and the observation area is formed in the area between two shells.
Preferably, the outer side wall of the sleeve main body is provided with a clamping groove, and the edge of the shell is inserted into the clamping groove and is connected with the sleeve main body in a sealing manner.
The utility model provides a zero degree bone cement injector, its include sleeve nut, spiral inject the pole and as above zero degree bone cement inject the sleeve pipe, sleeve nut connect in the upper end of sleeve pipe main part, the lower extreme of spiral inject the pole pass sleeve nut and pass through in the feed inlet stretches into the sleeve pipe main part, the lower extreme of spiral inject the pole be provided with sheathed tube hole complex inject head, be provided with on the spiral inject the pole lateral wall with sleeve nut complex screw thread.
Preferably, the upper end of the spiral injection rod is connected with a handle perpendicular to the spiral injection rod, and the handle and the spiral injection rod form a T-shaped structure together.
The invention has the beneficial effects that:
firstly, before the bone cement injection device of the zero-degree bone cement injection sleeve is used for injecting bone cement, the whole injection device is placed in a refrigerator, a freezer and the like for refrigeration, a condensing agent is cooled to a certain temperature, when an operation is performed, the bone cement is filled in the sleeve main body, and then the injection piston is adopted to push out the bone cement. In the process of pushing, the residual amount of the bone cement in the sleeve main body can be seen through the observation area, and the amount of the bone cement injected in the operation can be accurately controlled;
secondly, the zero-degree bone cement injector adopts a screwing spiral injection rod to inject bone cement, an operator does not need to exert force all the time in the injection process, the injection amount can be controlled conveniently, and the zero-degree bone cement injector is very convenient.
Drawings
FIG. 1 is a longitudinal cross-sectional view of a zero degree bone cement bolus cannula;
FIG. 2 is a transverse cross-sectional view of a zero degree bone cement bolus cannula;
FIG. 3 is an exploded view of the zero degree bone cement injector;
fig. 4 is a longitudinal sectional view of the zero degree bone cement injector.
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.
Referring to fig. 1 to 2, the invention provides a zero-degree bone cement injection sleeve, which comprises a transparent sleeve main body 1, wherein a feed inlet 11 capable of filling bone cement into the sleeve main body 1 is formed in the upper end of the sleeve main body 1, an injection port 12 capable of pushing out the bone cement is formed in the lower end of the sleeve main body 1, a cooling device installation area 101 and an observation area 102 capable of observing the residual amount of the bone cement in the sleeve main body 1 are formed on the outer side wall of the sleeve main body 1, the observation area 102 is generally provided with scale marks along the axial direction of the sleeve main body 1, and the cooling device installation area 101 is provided with a cooling device.
Referring to fig. 1 and 2, the cooling device includes a housing 2 disposed on an outer sidewall of the casing main body 1, a cavity 3 is formed inside the housing 2 or between the housing 2 and the casing main body 1, and a condensing agent is disposed in the cavity 3. The condensing agent is made of materials with higher specific heat capacity, such as: water and colloid ice, wherein the colloid ice has better cold storage performance.
A push injection piston is arranged at the upper end of the sleeve main body 1, a puncture needle is connected to the lower end of the sleeve main body 1, a bone cement push injection device can be formed, and the lower end of the sleeve main body 1 can be directly connected with the puncture needle or connected with the puncture needle through a thin tube. Before the bone cement is injected by using the bone cement injection device, the whole injection device is placed in a refrigerator, a freezer and the like for refrigeration, a condensing agent is cooled to a certain temperature, when an operation is performed, the bone cement is filled in the sleeve main body 1, and then the bone cement is pushed out by adopting the injection piston. In the process of pushing, the residual amount of the bone cement in the cannula main body 1 can be seen through the observation area 102, and the injection amount of the bone cement in the operation can be accurately grasped.
Preferably, the number of the housings 2 is at least two, each housing 2 is arranged on the outer side wall of the casing main body 1 at intervals, the observation area 102 is formed in the area between two housings 2, and the rest area of the outer side wall of the casing main body 1 is the cooling device installation area 101.
In one aspect of the present invention, a clamping groove 13 is formed on an outer side wall of the casing main body 1, and an edge of the housing 2 is inserted into the clamping groove 13 and is hermetically connected with the casing main body 1, generally by welding. In this embodiment, the cavity 3 is formed between the housing 2 and the outer side wall of the sleeve body 1. In some embodiments of the invention, a separate cavity may be provided in the housing 2, in which the coolant is provided.
Referring to fig. 3 to 4, the invention further provides a zero-degree bone cement injector, which includes a sleeve nut 4, a spiral injection rod 53 and the zero-degree bone cement injection sleeve as above, the sleeve nut 4 is connected to the upper end of the sleeve main body 1, the upper part of the sleeve nut 4 protrudes out of the upper end face of the sleeve main body 1, the lower end of the spiral injection rod 53 penetrates through the sleeve nut 4 and extends into the sleeve main body 1 through the feed port 11, the lower end of the spiral injection rod 53 is provided with an injection head 51 matched with the inner hole of the sleeve, and the outer side wall of the spiral injection rod 53 is provided with a thread matched with the sleeve nut 4. Such zero degree bone cement injector adopts to twist the mode of spiral injection pole 53 and injects bone cement, and the in-process of injecting need not to exert oneself always by the operator, and does benefit to and holds the volume of injecting, and is very convenient.
In order to facilitate screwing of the spiral injection rod 53, the upper end of the spiral injection rod 53 is connected with a handle 52 perpendicular to the upper end, the handle 52 and the spiral injection rod 53 form a T-shaped structure, and the structure is adopted, so that labor is saved in the process of screwing the spiral injection rod 53.
The above is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.

Claims (6)

1. The utility model provides a sleeve pipe is pushed to zero degree bone cement, its includes transparent sleeve pipe main part (1), the upper end of sleeve pipe main part (1) is provided with feed inlet (11) that can pack into bone cement into to it, the lower extreme of sleeve pipe main part (1) is provided with can push out the injection mouth (12) of bone cement, its characterized in that, be provided with cooling device installing zone (101) and can observe observation area (102) of its inside bone cement surplus on the lateral wall of sleeve pipe main part (1), cooling device installing zone (101) be provided with cooling device.
2. The zero-degree bone cement bolus cannula according to claim 1, wherein the cooling device comprises a shell (2) arranged on the outer side wall of the cannula main body (1), a cavity (3) is formed inside the shell (2) or between the shell (2) and the cannula main body (1), and a condensing agent is arranged in the cavity (3).
3. The zero degree bone cement bolus cannula according to claim 2, wherein the number of the housings (2) is at least two, each housing (2) being spaced apart on an outer sidewall of the cannula body (1), the viewing zone (102) being formed in a region between two of the housings (2).
4. The zero-degree bone cement bolus cannula according to claim 2, wherein the outer side wall of the cannula main body (1) is provided with a clamping groove (13), and the edge of the shell (2) is inserted into the clamping groove (13) and is connected with the cannula main body (1) in a sealing manner.
5. The zero-degree bone cement injector is characterized by comprising a sleeve nut (4), a spiral injection rod (53) and the zero-degree bone cement injection sleeve according to any one of claims 1 to 4, wherein the sleeve nut (4) is connected to the upper end of the sleeve main body (1), the lower end of the spiral injection rod (53) penetrates through the sleeve nut (4) and extends into the sleeve main body (1) through the feed port (11), the lower end of the spiral injection rod (53) is provided with an injection head (51) matched with an inner hole of the sleeve, and the outer side wall of the spiral injection rod (53) is provided with a thread matched with the sleeve nut (4).
6. The zero-degree bone cement injector according to claim 5, characterized in that the upper end of the spiral injection rod (53) is connected with a handle (52) perpendicular thereto, and the handle (52) and the spiral injection rod (53) form a T-shaped structure.
CN202010375346.5A 2020-05-07 2020-05-07 Zero-degree bone cement pushing and injecting sleeve and zero-degree bone cement pushing and injecting device Pending CN111419381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010375346.5A CN111419381A (en) 2020-05-07 2020-05-07 Zero-degree bone cement pushing and injecting sleeve and zero-degree bone cement pushing and injecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010375346.5A CN111419381A (en) 2020-05-07 2020-05-07 Zero-degree bone cement pushing and injecting sleeve and zero-degree bone cement pushing and injecting device

Publications (1)

Publication Number Publication Date
CN111419381A true CN111419381A (en) 2020-07-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010375346.5A Pending CN111419381A (en) 2020-05-07 2020-05-07 Zero-degree bone cement pushing and injecting sleeve and zero-degree bone cement pushing and injecting device

Country Status (1)

Country Link
CN (1) CN111419381A (en)

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