Disposable bone marrow puncture outfit

Abstract

The utility model belongs to the technical field, and discloses a disposable bone marrow puncture outfit which comprises a shell, a puncture outfit body and a puncture outfit body. The output shaft and the power mechanism are sequentially arranged in the axial direction of the shell, the output shaft and the power mechanism are both located in the shell, the input end of the output shaft is connected with the power mechanism, the power mechanism can drive the output shaft to work, and the output end of the output shaft extends out of the shell; and the control mechanism is arranged on the shell, and the control mechanism is connected with the power mechanism so that the working state of the power mechanism can be switched. The components are sequentially arranged in the axial direction of the shell, so that the whole structure can be more compact, the number of parts forming the whole structure is smaller, the whole tends to be simplified, and batch machining is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to bone marrow puncture technical field especially relates to a disposable bone marrow puncture outfit. BACKGROUND

[0002] Bone marrow puncture is a technique for taking bone marrow fluid. Commonly selected puncture sites include the anterior superior iliac spine, the posterior superior iliac spine, etc. When puncturing, first, the skin is disinfected, then the puncture needle is inserted, after the puncture needle enters the bone marrow cavity, the needle core is pulled out, and the bone marrow fluid is extracted using a syringe for examination or bone marrow culture; finally, the needle core is inserted, and the puncture needle is pulled out. Now, bone marrow puncture often uses electric tools to drive the puncture needle to rotate and penetrate into the bone marrow cavity.

[0003] For example, a medical power mobile phone is disclosed in Chinese patent (CN211560255U), and specifically disclosed is "including a shell body and a handle connected below the shell body, further including a battery, a motor and an output shaft, the output shaft is provided with a through hole for the cutter to pass through in the axial direction, the output shaft is rotatably arranged in the shell body along its own axis, the battery and the motor are arranged in the handle, and the output end of the motor is connected with the output shaft through a transmission structure", the above-mentioned medical power mobile phone, considering that disinfection and sterilization are needed after use to enable the product to be repeatedly used, so the overall structure is usually relatively complex. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a disposable bone marrow puncture outfit with simple structure.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a disposable bone marrow puncture outfit, which comprises:

[0007] A shell body is internally hollow.

[0008] An output shaft and a power mechanism are sequentially arranged in the axial direction of the shell body, and the output shaft and the power mechanism are both located in the shell body interior, the input end of the output shaft is connected with the power mechanism, the power mechanism can drive the output shaft to work, and the output end of the output shaft extends from the shell body.

[0009] A control mechanism is arranged on the shell body, and the control mechanism is connected with the power mechanism to switch the working state of the power mechanism.

[0010] Preferably, the cross section of the shell body is circular or elliptical.

[0011] Preferably, the shell comprises a sleeve and a housing, the housing is sleeved outside the sleeve, and the output shaft, the power mechanism and the control mechanism are arranged in the sleeve.

[0012] Preferably, the sleeve comprises an inner sleeve and an outer sleeve, the outer sleeve is connected in a sleeved mode with the inner sleeve, and a predetermined gap is formed between the outer sleeve and the inner sleeve, the power mechanism is arranged inside the inner sleeve, and the control mechanism is arranged in the gap between the inner sleeve and the outer sleeve.

[0013] Preferably, the hardness of the outer sleeve is greater than the hardness of the inner sleeve.

[0014] Preferably, a plurality of limiting columns are arranged in the inner sleeve.

[0015] Preferably, the sleeve is of a split structure.

[0016] Preferably, the housing comprises a front housing and a rear housing, the front housing and the rear housing are respectively sleeved at front and rear ends of the sleeve in an axial direction.

[0017] Preferably, the hardness of the front housing is greater than the hardness of the rear housing.

[0018] Preferably, the shell further comprises a connecting piece, the connecting piece is arranged at one end close to the output shaft, and the connecting piece is connected with the sleeve.

[0019] The disposable bone marrow puncture device has the following advantages:

[0020] The disposable bone marrow puncture device has the following advantages: ATTACHED DRAWINGS

[0021] Figure 1 is a structural schematic view of the disposable bone marrow puncture device of the utility model;

[0022] Figure 2 is a partial structural schematic view of the disposable bone marrow puncture device as shown in the figure; Figure 1

[0023] Figure 3 is a sectional view of the disposable bone marrow puncture device as shown in the figure. Figure 1 In the figure:

[0024]

[0025] ​​1, housing; 101, sleeve; 1011, inner sleeve; 1012, outer sleeve; 102, shell; 1021, front shell; 1022, rear shell; 103, adapter; 1031, flange; 2, output shaft; 3, power mechanism; 4, control mechanism; 5, limiting column. DETAILED DESCRIPTION

[0026] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0027] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0029] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0030] Reference Figures 1-3The embodiment discloses a disposable bone marrow puncture device which comprises a shell 1, an output shaft 2 and a power mechanism 3 arranged along the axial direction of the shell 1 in sequence and a control mechanism 4 arranged on the shell 1, wherein the shell 1 is hollow, that is to say, the inside of the shell 1 has a certain accommodation space, the output shaft 2 and the power mechanism 3 are located in the inside of the shell 1, the input end of the output shaft 2 is connected with the power mechanism 3, the power mechanism 3 can drive the output shaft 2 to work, the output end of the output shaft 2 extends from the shell 1, the output shaft 2 is used for connecting with a puncture needle matched with the bone marrow puncture device, so that the puncture needle is driven by the output shaft 2 to work to perform a puncture action, and the control mechanism 4 is connected with the power mechanism 3 to switch the working state of the power mechanism 3, that is to say, the disposable bone marrow puncture device in the embodiment can be more compact in overall structure, has fewer parts constituting the overall structure, is simple in whole and is beneficial to batch processing.

[0031] Specifically, in the embodiment, the cross section of the shell 1 is circular or elliptical. It can be understood that the disposable bone marrow puncture device is usually manually operated, that is to say, the device needs to be manually held, the cross section of the shell 1 is arranged in the approximate circular structure, the edge is more rounded, the hand fatigue during operation can be reduced, the holding demand is met, on the other hand, the shell 1 with the shape has better mechanical properties and deformation resistance. Further, the cross section of the shell 1 is circular, the axial force distribution is more uniform, so that the deflection phenomenon during use can be effectively limited. Meanwhile, compared with the polygonal structure, the shell 1 in the embodiment simplifies the mold and is easier to realize batch processing.

[0032] Specifically, in the embodiment, the shell 1 comprises a sleeve 101 and an outer shell 102, the outer shell 102 is arranged outside the sleeve 101, and the output shaft 2, the power mechanism 3 and the control mechanism 4 are arranged in the sleeve 101. It can be understood that the shell 1 in the embodiment is in a layered form, and the layered structure has relatively better sealing performance, for example, the sealing performance is improved by arranging a sealing ring.

[0033] On the basis of the above, the sleeve 101 comprises an inner sleeve 1011 and an outer sleeve 1012, the outer sleeve 1012 is connected with the inner sleeve 1011 in a sleeved manner, and there is a predetermined gap between the outer sleeve 1012 and the inner sleeve 1011; wherein the power mechanism 3 is arranged inside the inner sleeve 1011, and the control mechanism 4 is arranged in the gap between the inner sleeve 1011 and the outer sleeve 1012, that is, on the basis of the above, the layering is further realized, thereby improving the sealing performance, at the same time, since there is a predetermined gap between the outer sleeve 1012 and the inner sleeve 1011, the assembly difficulty is reduced, and the friction and wear are reduced, the overall performance is improved, the service life is improved, and the storage for a relatively longer time can be realized. The control mechanism 4 can be realized by referring to the structure in the prior art, and only the setting method thereof is described here, and the control part thereof will not be described in detail, and it can be known that the control mechanism 4 necessarily exists a certain number of lines, which is arranged in the gap between the inner sleeve 1011 and the outer sleeve 1012, which can help to clarify the lines and make the mechanism more compact.

[0034] Further, the hardness of the outer sleeve 1012 is greater than that of the inner sleeve 1011, that is, it can be understood that since the power mechanism 3 is arranged in the inner sleeve 1011, the inner sleeve 1011 with lower hardness can better adapt to the assembly action, and at the same time, the mechanical properties are improved by the outer sleeve 1012 with higher hardness to prevent the deformation of the overall structure. Preferably, a plurality of limiting columns 5 are arranged in the inner sleeve 1011, thereby being capable of limiting the power mechanism 3, limiting the free movement of the power mechanism 3 in the inner sleeve 1011, the limiting columns 5 can be arranged in a circumferential array, or can be adaptively arranged corresponding to different power mechanisms 3 to achieve the condition of limiting at least three degrees of freedom. It should be noted that the power mechanism 3 can be realized by referring to the structure in the prior art, such as a motor comprising a speed reducer.

[0035] Further, the sleeve 101 is a split structure, for example, a half split, that is, it can be known that since the power mechanism 3 needs to be arranged in the sleeve 101, specifically in the inner sleeve 1011, if it is placed along the axial direction, it is difficult to limit the degree of freedom, therefore, by arranging the sleeve 101 in a split structure, the assembly of the overall structure is facilitated, the split sleeve 101 can be assembled by, for example, welding or buckling to form a complete sleeve 101 structure, in the embodiment, specifically, the inner sleeve 1011 and the outer sleeve 1012 are split structures. It can be known that since the sleeve is composed of two parts, it is easier to process in batches.

[0036] Specifically, in the embodiment, the shell 102 includes a front shell 1021 and a rear shell 1022, and the front shell 1021 and the rear shell 1022 are respectively sleeved on the front end and the rear end of the sleeve 101 in the axial direction. It can be understood that, on the one hand, through the above arrangement mode, the sleeving connection can be more easily realized, that is, the two ends of the sleeve 101 can be assembled respectively, and on the other hand, a part of gap can be reserved between the front shell 1021 and the rear shell 1022, so that the possibility of adaptive assembly with the remaining devices is reserved. Preferably, the hardness of the front shell 1021 is greater than the hardness of the rear shell 1022. Since the rear shell 1022 is mainly held by the human hand during holding, the rear shell 1022 with lower hardness is arranged, which is more in line with the holding requirement, and the stability of the overall structure is ensured through the front shell 1021 with higher hardness.

[0037] Specifically, in the embodiment, the shell 102 includes a front shell 1021 and a rear shell 1022, and the front shell 1021 and the rear shell 1022 are respectively sleeved on the front end and the rear end of the sleeve 101 in the axial direction. It can be understood that, on the one hand, through the above arrangement mode, the sleeving connection can be more easily realized, that is, the two ends of the sleeve 101 can be assembled respectively, and on the other hand, a part of gap can be reserved between the front shell 1021 and the rear shell 1022, so that the possibility of adaptive assembly with the remaining devices is reserved. Preferably, the hardness of the front shell 1021 is greater than the hardness of the rear shell 1022. Since the rear shell 1022 is mainly held by the human hand during holding, the rear shell 1022 with lower hardness is arranged, which is more in line with the holding requirement, and the stability of the overall structure is ensured through the front shell 1021 with higher hardness.

[0038] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be carried out without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made in the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A single-use bone marrow puncture device, characterized by, The utility model relates to a kind of power take-off mechanism, including: Housing (1), the housing (1) inside hollow; Output shaft (2) and power mechanism (3) are sequentially arranged along the housing (1) axis direction, the output shaft (2) and power mechanism (3) are located in the housing (1) inside, the input end of the output shaft (2) is connected with the power mechanism (3), the power mechanism (3) can drive the output shaft (2) work, the output end of the output shaft (2) is from the housing (1) and extends; Control mechanism (4), the control mechanism (4) is arranged on the housing (1), the control mechanism (4) is connected with the power mechanism (3), to be able to switch the working state of the power mechanism (3).

2. The single-use bone marrow puncture device according to claim 1, wherein The cross section of the housing (1) is circular or elliptical.

3. The single-use bone marrow puncture device according to claim 1, wherein The housing (1) includes sleeve (101) and shell (102), the shell (102) is sleeved on the outside of the sleeve (101);Wherein, the output shaft (2), power mechanism (3) and control mechanism (4) are all arranged in the sleeve (101).

4. The single-use bone marrow puncture device according to claim 3, wherein The sleeve (101) includes inner sleeve (1011) and outer sleeve (1012), the outer sleeve (1012) is connected with the inner sleeve (1011) and is sleeved, and there is predetermined gap between the outer sleeve (1012) and the inner sleeve (1011);Wherein, the power mechanism (3) is arranged in the inner sleeve (1011), and the control mechanism (4) is arranged in the gap between the inner sleeve (1011) and the outer sleeve (1012).

5. The single-use bone marrow puncture device according to claim 4, wherein The hardness of the outer sleeve (1012) is greater than the hardness of the inner sleeve (1011).

6. The single-use bone marrow puncture device according to claim 4, wherein A plurality of limiting columns (5) are arranged in the inner sleeve (1011).

7. The single-use bone marrow puncture device according to any one of claims 3 to 6, wherein The sleeve (101) is a split structure.

8. The single-use bone marrow puncture device according to any one of claims 3 to 6, wherein The shell (102) includes front shell (1021) and rear shell (1022), the front shell (1021) and rear shell (1022) are respectively sleeved on the front and rear ends of the sleeve (101) along the axial direction.

9. The single-use bone marrow puncture device of claim 8, wherein, The hardness of the front shell (1021) is greater than the hardness of the rear shell (1022).

10. The single-use bone marrow puncture device according to any one of claims 3 to 6, wherein The housing (1) further includes a connecting piece (103), which is arranged near one end of the output shaft (2), and the connecting piece (103) is connected with the sleeve (101).

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