CN215384176U

CN215384176U - Lateral position forearm support applied to ultrasonic interventional operation

Info

Publication number: CN215384176U
Application number: CN202122115065.9U
Authority: CN
Inventors: 张蕾; 崔浩
Original assignee: Harbin Medical University
Current assignee: Harbin Engineering University; Harbin Medical University
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-01-04
Anticipated expiration: 2031-09-02

Abstract

A lateral position forearm support applied to an ultrasonic interventional operation belongs to the field of medical instruments. This is novel in order to solve current arm bracket and only to make patient's forearm keep a fixed gesture, can not let it swing, can't promote the problem of patient comfort level in the art. The lateral position forearm support include arm layer board, multi freedom coupling mechanism, telescopic machanism and fixing base, the bottom of arm layer board link firmly through multi freedom coupling mechanism and telescopic machanism's one end, telescopic machanism's the other end is adorned on the up end of fixing base admittedly, the fixing base install on the bed edge. The utility model is mainly used for supporting forearms in ultrasonic interventional operations.

Description

Lateral position forearm support applied to ultrasonic interventional operation

Technical Field

The utility model belongs to the field of medical instruments, and particularly relates to a lateral position forearm support applied to an ultrasonic interventional operation.

Background

The operation position is the lying position of the patient during the operation and consists of three parts of the lying position of the patient, the use of a position cushion and the operation of an operation table. The selection of the correct surgical position is of great significance to the success rate of the surgery. The lateral position is one of the commonly used body positions in the surgical operation, is commonly used in thoracic and lumbar operations, hip operations, neurosurgery operations and the like, and particularly in some clinical examinations and operations applying ultrasound, a patient is often required to take the lateral position and abduct one upper limb so as to achieve the purposes of fully exposing an operation area and expanding a intercostal space, but since the ultrasound interventional operation generally requires 30 minutes to 1 hour, the operation time is long, and the patient is difficult to raise the arm and keep the abducted state for a long time; in order to keep the patient in a lateral recumbent position, raise the arm and stretch out, a plurality of arm brackets are available on the market, but the forearm of the patient needs to keep a posture, cannot swing freely and cannot improve the comfort level of the patient in the operation.

SUMMERY OF THE UTILITY MODEL

The technical problems to be solved by the utility model are as follows: the existing arm bracket can only enable the forearm of a patient to keep a fixed posture, cannot swing freely and cannot improve the comfort level of the patient in the operation; further provides a lateral position forearm support applied to the ultrasonic interventional operation.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the lateral recumbent position forearm support applied to the ultrasonic interventional operation comprises an arm supporting plate, a multi-degree-of-freedom connecting mechanism, a telescopic mechanism and a fixed seat, wherein the bottom end of the arm supporting plate is fixedly connected with one end of the telescopic mechanism through the multi-degree-of-freedom connecting mechanism, the other end of the telescopic mechanism is fixedly arranged on the upper end face of the fixed seat, and the fixed seat is arranged on a bed edge.

Furthermore, the multi-degree-of-freedom connecting mechanism comprises a universal ball, a spherical seat, a first fastening screw, a vertical connecting rod, a first transverse connecting rod, a rotating shaft, a sleeve and a second transverse connecting rod; the universal ball is arranged in the spherical seat and is connected to the bottom end of the arm supporting plate through a vertical connecting rod; the first fastening screw is in threaded connection with the spherical seat, and when the universal ball needs to be fixed, the tip of the first fastening screw abuts against the outer surface of the universal ball; one end of the first transverse connecting rod is fixedly connected with the bottom end of the spherical seat, and the other end of the first transverse connecting rod is fixedly connected with the top end of the sleeve; the rotating shaft is vertically arranged at one end of the second transverse connecting rod, and the sleeve is sleeved on the rotating shaft and can rotate with the rotating shaft; the other end of the second transverse connecting rod is fixedly connected with one end of the telescopic mechanism.

Furthermore, the telescopic mechanism comprises a telescopic rod, a telescopic sleeve and a clamping ring, the clamping ring is sleeved on the telescopic rod and fastened through a bolt, one end of the telescopic rod extends into the telescopic sleeve, and the other end of the telescopic rod is fixedly connected with the other end of the second transverse connecting rod; the bottom end of the telescopic sleeve is fixedly connected with the fixed seat.

Furthermore, the one end of telescopic link is provided with the stopper, telescope tube's top open and to have the round hole, the round hole internal diameter on telescope tube top is greater than the external diameter of telescopic link, and is less than the external diameter of stopper.

Further, the snap ring include ring, bolt and two auricles, the ring open along its axis direction and have the opening, two auricles set up respectively in the both sides of opening and link firmly, and all opened the bolt hole on every auricle, the bolt spiro union is in the bolt hole.

Furthermore, the telescopic mechanism further comprises a plurality of U-shaped gaskets, and the minimum inner diameter of each U-shaped gasket is larger than the outer diameter of the telescopic rod and smaller than the outer diameters of the telescopic sleeve and the circular ring.

Furthermore, the telescopic rod is provided with scale marks along the axis direction, and the 0 point position of the scale marks is arranged at the top end of the telescopic rod.

Furthermore, a rubber gasket is arranged on the inner wall of the clamping ring.

Further, the fixed seat comprises an upper transverse plate, a lower transverse plate, a vertical connecting plate and two second fastening screws; the upper transverse plate and the lower transverse plate are arranged in parallel up and down and are connected through a vertical connecting plate, two bolt holes are formed in the lower transverse plate in parallel, and two second fastening screws are screwed on the lower transverse plate; the length of the upper transverse plate is longer than that of the lower transverse plate.

Furthermore, one end of the arm supporting plate is provided with a hand-holding rod, and two ends of the hand-holding rod are fixed on the inner walls of two opposite sides of the arm supporting plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model can be adjusted according to the shoulder width of a patient, overcomes the defects that the lateral position operation body position is difficult to fix and the operation area is not exposed fully, simultaneously relieves the pain of the patient caused by the discomfort of the operation body position, and increases the comfort level of the patient;

2. the utility model can ensure the fixed posture of the arm of the patient before the device is placed in the body, and can also ensure the free movement of the upper arm and the forearm after the device is placed;

3. the novel structure is simple, easy to implement and can be put into the market;

4. this novel be applicable to left side position of lying and right side position of lying, can not be because of the direction change of patient's side position of lying and need change the support hand rack of new, save the cost, the suitability is strong.

Drawings

FIG. 1 is a schematic view of the overall structure of a forearm support in a lateral decubitus position;

fig. 2 is a vertical sectional view of fig. 1.

Detailed Description

The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1 and fig. 2 below:

as shown in figure 1, the lateral position forearm support applied to the ultrasonic interventional operation comprises an arm supporting plate 1, a multi-degree-of-freedom connecting mechanism, a telescopic mechanism and a fixed seat 6, wherein the bottom end of the arm supporting plate 1 is fixedly connected with one end of the telescopic mechanism through the multi-degree-of-freedom connecting mechanism, the other end of the telescopic mechanism is fixedly arranged on the upper end face of the fixed seat 6, and the fixed seat 6 is arranged on a bed edge.

When a patient is in an ultrasonic interventional operation, in order to fully expose an operation area and expand costal space, the patient needs to raise the arm and keep an abduction state, and in order to ensure the comfort of the patient, the forearm support is arranged on the bed edge through the fixed seat 6; before operation, a patient places the forearm on the arm supporting plate 1, and the height of the telescopic mechanism is adjusted and maintained according to the shoulder width and requirements of the patient; in operation, before the instrument is placed in the body of a patient, the patient needs to put the forearm on the arm supporting plate 1 and keep the forearm still, and the burden of the patient can be reduced due to the support of the arm supporting plate 1; after the instrument is placed in a body, the forearm and the upper arm of a patient can move freely, but the upper arm still needs to be kept in a lifting state and cannot be put down, otherwise, the subsequent operation of a doctor can be influenced, and the forearm of the patient can drive the arm supporting plate 1 to move and rotate under the cooperation of the multi-degree-of-freedom connecting mechanism, so that the elbow joint between the forearm and the upper arm can move, the numb feeling caused by long-time immobility is prevented, and the comfort level of the patient is increased.

As shown in fig. 2, the multi-degree-of-freedom connecting mechanism comprises a universal ball 2, a spherical seat 3, a first fastening screw 4, a vertical connecting rod 5, a first transverse connecting rod 7, a rotating shaft 8, a sleeve 9 and a second transverse connecting rod 10; the universal ball 2 is arranged in the spherical seat 3 and can rotate, the universal ball 2 is connected to the bottom end of the arm supporting plate 1 through a vertical connecting rod 5, namely one end of the vertical connecting rod 5 is connected to the universal ball 2, the other end of the vertical connecting rod 5 is connected to the bottom end of the arm supporting plate 1, and the lower end face of the vertical connecting rod 5 is provided with a taper; the spherical seat 3 is provided with a threaded hole, the first fastening screw 4 is screwed on the spherical seat 3, when the arm supporting plate 1 needs to keep a certain fixed posture, the first fastening screw 4 is screwed inwards, the tip of the first fastening screw 4 is enabled to be abutted against the outer surface of the universal ball 2, and the universal ball 2 does not rotate any more; when the arm supporting plate 1 needs to rotate freely, the first fastening screws 4 are screwed outwards, and the tips of the first fastening screws 4 are far away from the outer surface of the universal ball 2, so that the arm supporting plate 1 is ensured to rotate freely by taking the universal ball 2 as a sphere center, and the adjustment of multiple degrees of freedom is realized; one end of the first transverse connecting rod 7 is fixedly connected with the bottom end of the spherical seat 3, and the other end of the first transverse connecting rod 7 is fixedly connected with the top end of the sleeve 9; the other end of the first transverse connecting rod 7 is provided with a pin hole, the aperture of the pin hole is larger than the outer diameter of the rotating shaft 8, the rotating shaft 8 is vertically arranged at one end of the second transverse connecting rod 10 and is fixedly connected with the second transverse connecting rod, the sleeve 9 and the other end of the first transverse connecting rod 7 are sleeved on the rotating shaft 8 and can rotate 360 degrees by taking the axis direction of the rotating shaft as an axis, so that the arm supporting plate 1 can rotate within a certain range in the horizontal direction; the other end of the second transverse connecting rod 10 is fixedly connected with one end of the telescopic mechanism.

The telescopic mechanism comprises a telescopic rod 11, a telescopic sleeve 13 and a clamping ring 12, scale marks are arranged on the telescopic rod 11 along the axis direction of the telescopic rod, and the position of 0 point of each scale mark is arranged at the top end of the telescopic rod 11; the clamping ring 12 is sleeved on the telescopic rod 11 and fastened through a bolt, so that the clamping ring 12 and the telescopic rod 11 are fixed, and in order to increase the friction force between the clamping ring 12 and the telescopic rod 11, a rubber gasket is arranged on the inner wall of the clamping ring 12; one end of the telescopic rod 11 extends into the telescopic sleeve 13 and can move up and down along the axis direction of the telescopic sleeve 13, and meanwhile, the telescopic rod can rotate 360 degrees by taking the axis direction of the telescopic sleeve 13 as an axis, so that the moving range of the arm supporting plate 1 in the horizontal direction is increased, and the other end of the telescopic rod 11 is fixedly connected with the other end of the second transverse connecting rod 10; the bottom end of the telescopic sleeve 13 is fixedly connected with the fixed seat 6.

Through the vertical degree of freedom on the multi-degree-of-freedom connecting mechanism and the vertical degree of freedom on the telescopic mechanism, the two vertical degrees of freedom increase the range of the arm supporting plate 1 moving in the horizontal direction, can be suitable for patients with different arm lengths, and increase the application range of the arm supporting plate.

One end of the telescopic rod 11 is provided with a limiting block 11-1, the top end of the telescopic sleeve 13 is provided with a round hole, and the inner diameter of the round hole at the top end of the telescopic sleeve 13 is larger than the outer diameter of the telescopic rod 11 and smaller than the outer diameter of the limiting block 11-1.

The clamping ring 12 comprises a circular ring 12-1, a bolt and two lug plates 12-2, the circular ring 12-1 is provided with an opening along the axis direction, the two lug plates 12-2 are respectively arranged at two sides of the opening and are fixedly connected, each lug plate 12-2 is provided with a bolt hole, the bolt is inserted into the bolt holes on the two lug plates 12-2, the inner diameter of the circular ring 12-1 is adjusted by adjusting the distance between the two lug plates 12-2, so that the fixing degree between the clamping ring 12 and the telescopic rod 11 is adjusted, and the circular ring 12-1 and the two lug plates 12-2 are integrally manufactured.

The telescopic mechanism further comprises a plurality of U-shaped gaskets 14, the thickness of each U-shaped gasket 14 is 1cm, and the minimum inner diameter of each U-shaped gasket 14 is larger than the outer diameter of the telescopic rod 11 and smaller than the outer diameters of the telescopic sleeve 13 and the circular ring 12-1; when the height of the telescopic mechanism is adjusted according to the shoulder width of a patient, in order to quickly obtain accurate height, the U-shaped gaskets 14 are padded between the clamping ring 12 and the telescopic sleeve 13 one by one until the height which can be accepted by the patient is reached, the scale of the bottom end face of the lowest U-shaped gasket 14 is checked, the U-shaped gasket 14 is taken down, and the position of the clamping ring 12 is adjusted until the scale of the bottom end face of the clamping ring 12 is the same as the scale of the bottom end face of the U-shaped gasket 14.

The fixed seat 6 comprises an upper transverse plate 6-1, a lower transverse plate 6-2, a vertical connecting plate 6-4 and two second fastening screws 6-3; the upper transverse plate 6-1 and the lower transverse plate 6-2 are arranged in parallel up and down and are connected through a vertical connecting plate 6-4, two bolt holes are formed in the lower transverse plate 6-2 in parallel, and two second fastening screws 6-3 are screwed on the lower transverse plate 6-2; the length of the upper transverse plate 6-1 is longer than that of the lower transverse plate 6-2, and the upper transverse plate 6-1, the lower transverse plate 6-2 and the vertical connecting plate 6-4 are integrally manufactured.

When the forearm fixing frame needs to be fixed on the bed edge, a mattress with a leather surface is arranged on the bed, if the forearm fixing frame is clamped on the mattress, the surface of the mattress is relatively smooth due to the material, when an ultrasonic intervention operation is performed, the arm needs to be placed on the bracket for a long time, the phenomenon that the arm fixing frame possibly inclines or even falls off from the bed edge can occur, therefore, in general conditions, the fixing seat 6 is fixed below the mattress, the upper transverse plate 6-1 is placed below the mattress, in order to ensure the stability of the forearm support, the length of the upper transverse plate 6-1 is longer, the forearm fixing frame can be pressed by the weight of a patient and the weight of the mattress, the condition that the forearm support inclines or even falls off is prevented, and the safety of the operation is finally influenced.

And one end of the arm supporting plate 1 is provided with a hand-holding rod 15, and two ends of the hand-holding rod 15 are fixed on the inner walls of two opposite sides of the arm supporting plate 1. When the forearm and the upper arm of the patient can move freely, in order to ensure that the arm of the patient cannot be separated from the arm supporting plate 1 when moving (if the arm is separated, the arm can fall off the side of the body due to the fact that the arm is not moved for a long time and the operation result is influenced), the patient holds the hand grasping rod 15 with the hand to drive the arm supporting plate 1 to horizontally move and vertically rotate, and the action is repeated to relieve the discomfort of the arm of the patient.

Claims

1. The utility model provides a be applied to lateral position forearm support in ultrasonic intervention operation which characterized in that: the lateral position forearm support include arm layer board (1), multi freedom coupling mechanism, telescopic machanism and fixing base (6), the bottom of arm layer board (1) link firmly through multi freedom coupling mechanism and telescopic machanism's one end, telescopic machanism's the other end is adorned on the up end of fixing base (6) admittedly, fixing base (6) install on the bed edge.

2. The lateral recumbent forearm support of claim 1, wherein: the multi-degree-of-freedom connecting mechanism comprises a universal ball (2), a spherical seat (3), a first fastening screw (4), a vertical connecting rod (5), a first transverse connecting rod (7), a rotating shaft (8), a sleeve (9) and a second transverse connecting rod (10); the universal ball (2) is arranged in the spherical seat (3) and is connected to the bottom end of the arm supporting plate (1) through a vertical connecting rod (5); the first fastening screw (4) is screwed on the spherical seat (3), and when the universal ball (2) needs to be fixed, the tip of the first fastening screw (4) is propped against the outer surface of the universal ball (2); one end of the first transverse connecting rod (7) is fixedly connected with the bottom end of the spherical seat (3), and the other end of the first transverse connecting rod (7) is fixedly connected with the top end of the sleeve (9); the rotating shaft (8) is vertically arranged at one end of the second transverse connecting rod (10), and the sleeve (9) is sleeved on the rotating shaft (8) and can rotate with the rotating shaft (8); the other end of the second transverse connecting rod (10) is fixedly connected with one end of the telescopic mechanism.

3. The lateral recumbent forearm support of claim 2, wherein: the telescopic mechanism comprises a telescopic rod (11), a telescopic sleeve (13) and a clamping ring (12), the clamping ring (12) is sleeved on the telescopic rod (11) and is fastened through a bolt, one end of the telescopic rod (11) extends into the telescopic sleeve (13), and the other end of the telescopic rod (11) is fixedly connected with the other end of the second transverse connecting rod (10); the bottom end of the telescopic sleeve (13) is fixedly connected with the fixed seat (6).

4. The lateral recumbent forearm support of claim 3, wherein: one end of the telescopic rod (11) is provided with a limiting block (11-1), the top end of the telescopic sleeve (13) is provided with a round hole, and the inner diameter of the round hole in the top end of the telescopic sleeve (13) is larger than the outer diameter of the telescopic rod (11) and smaller than the outer diameter of the limiting block (11-1).

5. The lateral recumbent forearm support of claim 4, wherein: the clamping ring (12) comprises a circular ring (12-1), a bolt and two lug plates (12-2), the circular ring (12-1) is provided with an opening along the axis direction, the two lug plates (12-2) are respectively arranged on two sides of the opening and fixedly connected, each lug plate (12-2) is provided with a bolt hole, and the bolt is in threaded connection with the bolt holes.

6. The lateral position forearm support of claim 5, wherein: the telescopic mechanism further comprises a plurality of U-shaped gaskets (14), and the minimum inner diameter of each U-shaped gasket (14) is larger than the outer diameter of the telescopic rod (11) and smaller than the outer diameters of the telescopic sleeve (13) and the circular ring (12-1).

7. The lateral position forearm support of claim 6, wherein: the telescopic rod (11) is provided with scale marks along the axis direction, and the 0 point position of the scale marks is arranged at the top end of the telescopic rod (11).

8. The lateral position forearm support of claim 7, wherein: and a rubber gasket is arranged on the inner wall of the snap ring (12).

9. The lateral position forearm support of claim 8, wherein: the fixed seat (6) comprises an upper transverse plate (6-1), a lower transverse plate (6-2), a vertical connecting plate (6-4) and two second fastening screws (6-3); the upper transverse plate (6-1) and the lower transverse plate (6-2) are arranged in parallel up and down and are connected through a vertical connecting plate (6-4), two bolt holes are formed in the lower transverse plate (6-2) in parallel, and two second fastening screws (6-3) are screwed on the lower transverse plate (6-2); the length of the upper transverse plate (6-1) is longer than that of the lower transverse plate (6-2).

10. The lateral position forearm support of claim 9, wherein: one end of the arm supporting plate (1) is provided with a hand-holding rod (15), and two ends of the hand-holding rod (15) are fixed on the inner walls of two opposite sides of the arm supporting plate (1).