Puncture needle holding and fixing device

Abstract

The utility model provides a puncture needle supports and fixes the device, relate to medical instrument technical field, the utility model discloses two clamps, two the clamp side through the volute spring rotation connection, one side of the clamp symmetry fixed mounting has half ring, the inner wall of half ring is provided with adjusting device, adjusting device passes through setting two adjustable shape change degree's air bag instead of two half ring's inner wall and puncture needle or the outer surface of rubber tube abuts, the utility model discloses two air bags are set, utilize the feature that air bag can utilize the in and out of gas and take place shape change, adjust air bag, and make air bag and rubber tube or the outer surface of puncture needle abut, then can carry out the auxiliary fixing between rubber tube and puncture needle and two half rings, and then also convenient according to actual need to carry out the compatible adjustment of air bag, be favorable to make two half rings can to different model puncture needle or rubber tube play more stable clamping effect.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a puncture needle support and fixation device. Background Technology

[0002] A puncture needle support and fixation device, also known as a puncture tube clamp, is a tool used to fix the puncture needle and rubber tube together, preventing them from slipping or falling off during the operation.

[0003] When using a needle support and fixation device to clamp the puncture tube, the main method is to use a clamp with two pairs of half-rings to clamp and fix the puncture tube and the rubber tube respectively. However, the inner diameter of the two half-rings is fixed, while the outer diameter of different models of puncture needles and rubber tubes is different. This may lead to the problem that the needle support and fixation device is not able to clamp the puncture needle and rubber tube securely enough. Utility Model Content

[0004] This utility model proposes a puncture needle support and fixation device to address the problem that the inner diameter of the two semi-rings is fixed, while the outer diameters of different models of puncture needles and rubber tubes are different, which may lead to insufficient clamping of the puncture needle and rubber tube by the puncture needle support and fixation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a puncture needle support and fixation device, comprising two clamps, the two clamps being rotatably connected on their adjacent sides by a coil spring, and a semi-ring being symmetrically fixedly installed on one side of each clamp, the inner wall of each semi-ring being provided with an adjustment device, the adjustment device using two adjustable airbags to replace the inner walls of the two semi-rings to abut against the outer surface of the puncture needle or rubber tube, thereby fixing the puncture needle or rubber tube.

[0006] The effect achieved by the above-mentioned components is as follows: by setting two airbags, the airbags can be adjusted to conform to the shape of the airbags as gas enters and exits, so that the airbags abut against the outer surface of the rubber tube or puncture needle. This can provide auxiliary fixation between the rubber tube or puncture needle and the two semi-rings. It also makes it easier to adjust the airbags according to the actual model and outer diameter of the puncture needle or rubber tube, which helps the two semi-rings to provide a more stable clamping effect for different models of puncture needles or rubber tubes.

[0007] Preferably, the adjusting device includes an airbag, which is installed on the inner wall of the semi-ring. A push plate is slidably installed on the inner wall of the airbag. A push rod is fixedly installed on one side of the push plate. A limit plate is fixedly installed on one side of the airbag. The outer surface of the push plate is slidably installed on the inner wall of the limit plate. A spring is sleeved on the outer surface of the push rod. The two ends of the spring are respectively fixedly installed on one side of the push plate and the limit plate.

[0008] The effect achieved by the above components is as follows: when the puncture needle or rubber tube is placed between the two semi-rings, the two push rods are pushed respectively. The push rods will drive the push plate to move to one side of the airbag. This will cause one end of the airbag to deform until one end of the airbag is completely in contact with the outer surface of the puncture needle or rubber tube, thus providing auxiliary fixation between the rubber tube and the puncture needle and the two semi-rings.

[0009] Preferably, the portion of the airbag located inside the two semi-rings is made of rubber, and the portion of the airbag located outside the two semi-rings is made of hard resin.

[0010] The effect achieved by the above components is that the rigid resin material has poor deformation ability, while the rubber material has good deformation ability. Therefore, when the push plate moves on the rigid resin airbag part, it will not cause the rigid resin part of the airbag to deform and cause a gap between the push plate and the airbag. In this way, the gas can be completely pushed into the rubber airbag, causing the rubber airbag to deform.

[0011] Preferably, each of the two airbags has several rubber protrusions on the side where they are close to each other.

[0012] The effect achieved by the above components is that by setting rubber protrusions, the friction on one side of the two airbags can be increased, making the fixation of the puncture needle and rubber tube by the two airbags more stable.

[0013] Preferably, a rubber ring is fixedly installed on the outer surface of the push plate, and the outer surface of the rubber ring abuts against the inner wall of the airbag.

[0014] The effect achieved by the above components is that by setting the rubber ring, the space between the push plate and the inner wall of the airbag can be sealed, which helps to prevent the airbag from leaking.

[0015] Preferably, one end of the push rod is provided with an auxiliary component, the auxiliary component includes an auxiliary block, the auxiliary block is fixedly installed on one end of the push rod, threaded pins are fixedly installed on both sides of the auxiliary block, a slot plate is symmetrically fixedly installed on one side of the airbag, the outer surface of the threaded pin is inserted into the inner wall of the slot plate, and a nut is threadedly connected to the outer surface of the threaded pin.

[0016] The effect achieved by the above components is as follows: when the push plate slides on the inner wall of the airbag, it will drive the push rod and the auxiliary block to move synchronously. The auxiliary block will drive the threaded pin to slide on the inner wall of the slot plate. Rotating the nut will cause one side of the nut to press against the slot plate, so that the nut and the slot plate abut against each other. The nut can fix the threaded pin and the slot plate, thereby fixing the push plate. This helps to prevent the push plate from shifting and causing the airbag to loosen its grip on the puncture needle and rubber tube.

[0017] Preferably, rubber blocks are symmetrically installed on both sides of the auxiliary block, the outer surface of the threaded pin is inserted into the inner wall of the rubber block, and the slot plate is disposed on one side of the rubber block.

[0018] The effect achieved by the above-mentioned components is that by setting the rubber block, when the nut squeezes the slot plate, the slot plate will come into contact with the rubber block, which helps to prevent the nut from squeezing the slot plate excessively and causing the slot plate to deform.

[0019] Preferably, a circular block is fixedly installed at one end of the threaded pin, and the outer diameter of the circular block is larger than the outer diameter of the threaded pin.

[0020] The effect achieved by the above-mentioned components is that by setting up a circular block, one end of the threaded pin can be blocked, which helps to prevent the nut from coming off the threaded pin.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, by setting two airbags, the airbags can be adjusted to conform to the shape of the airbags as gas enters and exits, so that the airbags abut against the outer surface of the rubber tube or puncture needle. This provides auxiliary fixation between the rubber tube, puncture needle and the two semi-rings, and also facilitates the adjustment of the airbags according to actual needs. This allows the two semi-rings to provide a more stable clamping effect on different types of puncture needles or rubber tubes. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the adjusting device of this utility model;

[0025] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0026] Figure 4 This is a three-dimensional structural diagram of the fixing component of this utility model;

[0027] Figure 5 This utility model Figure 4 A magnified structural diagram at point B.

[0028] Legend: 1. Clamping plate; 2. Half ring; 3. Adjustment device; 31. Airbag; 32. Push plate; 33. Limiting plate; 34. Push rod; 35. Spring; 36. Rubber ring; 4. Fixing component; 41. Auxiliary block; 42. Threaded pin; 43. Slot plate; 44. Nut; 45. Rubber block; 46. Round block. Detailed Implementation

[0029] Example 1, referring to Figures 1-3 As shown, this embodiment discloses a puncture needle support and fixation device, including two clamps 1. The two clamps 1 are connected by a coil spring on their adjacent sides. A semi-ring 2 is symmetrically fixed on one side of the clamps 1. An adjustment device 3 is provided on the inner wall of the semi-ring 2. The adjustment device 3 uses two adjustable airbags 31 to replace the inner wall of the two semi-rings 2 and abut against the outer surface of the puncture needle or rubber tube to fix the puncture needle or rubber tube. By setting two airbags 31, the airbags 31 can deform by the entry and exit of gas. The airbags 31 can be adjusted so that they abut against the outer surface of the rubber tube or puncture needle, which can provide auxiliary fixation between the rubber tube and the puncture needle and the two semi-rings 2. It is also convenient to adjust the airbags 31 according to the actual model and outer diameter of the puncture needle or rubber tube, so that the two semi-rings 2 can provide a more stable clamping effect for puncture needles or rubber tubes of different models.

[0030] Reference Figure 2 and Figure 3As shown, the adjusting device 3 includes an airbag 31, which is installed on the inner wall of the semi-ring 2. A push plate 32 is slidably installed on the inner wall of the airbag 31. A push rod 34 is fixedly installed on one side of the push plate 32. A limit plate 33 is fixedly installed on one side of the airbag 31. The outer surface of the push plate 32 is slidably installed on the inner wall of the limit plate 33. A spring 35 is sleeved on the outer surface of the push rod 34. The two ends of the spring 35 are respectively fixedly installed on one side of the push plate 32 and the limit plate 33. When a puncture needle or rubber tube is placed between the two semi-rings 2, the two push rods 34 are pushed. The push rods 34 will drive the push plate 32 to move towards one side of the airbag 31. This will cause one end of the airbag 31 to deform until one end of the airbag 31 is completely in contact with the outer surface of the puncture needle or rubber tube. During this process, the spring 35 continuously compresses the push plate 32, which helps prevent the push plate 32 from loosening and thus provides auxiliary fixation between the rubber tube and the puncture needle and the two semi-rings 2. The part of the airbag 31 inside the two semi-rings 2 is made of rubber, while the part of the airbag 31 outside the two semi-rings 2 is made of hard resin. The hard resin material has poor deformation ability, while the rubber material has good deformation ability. Therefore, when the push plate 32 moves over the hard resin part of the airbag 31, it will not cause the hard resin part of the airbag 31 to deform, thus preventing a gap from appearing between the push plate 32 and the airbag 31. This allows the gas to be completely pushed into the rubber airbag 31, causing the rubber airbag 31 to deform.

[0031] Reference Figure 2 and Figure 3 As shown, several rubber protrusions are provided on the side of the two airbags 31 that are close to each other. By providing airbags 31 with rubber protrusions, the friction on one side of the two airbags 31 can be increased, making the two airbags 31 more secure in fixing the puncture needle and rubber tube. A rubber ring 36 is fixedly installed on the outer surface of the push plate 32. The outer surface of the rubber ring 36 abuts against the inner wall of the airbag 31. By providing the rubber ring 36, the push plate 32 and the inner wall of the airbag 31 can be sealed, which helps to prevent the airbag 31 from leaking.

[0032] Reference Figure 4 and Figure 5As shown, an auxiliary component 4 is provided at one end of the push rod 34. The auxiliary component 4 includes an auxiliary block 41, which is fixedly installed at one end of the push rod 34. Threaded pins 42 are fixedly installed on both sides of the auxiliary block 41. A slotted plate 43 is symmetrically fixedly installed on one side of the airbag 31. The outer surface of the threaded pin 42 is inserted into the inner wall of the slotted plate 43. A nut 44 is threadedly connected to the outer surface of the threaded pin 42. When the push plate 32 slides on the inner wall of the airbag 31, it will drive the push rod 34 and the auxiliary block 41 to move synchronously. The auxiliary block 41 will drive the threaded pin 42 to slide on the inner wall of the slotted plate 43. Rotating the nut 44 will cause one side of the nut 44 to press against the slotted plate 43, so that the nut 44 and the slotted plate 43 abut against each other. The nut 44 can fix the threaded pin 42 and the slotted plate 43, thereby fixing the push plate 32. This helps to prevent the push plate 32 from shifting and causing the airbag 31 to loosen its grip on the puncture needle and rubber tube.

[0033] Reference Figure 4 and Figure 5 As shown, rubber blocks 45 are symmetrically installed on both sides of the auxiliary block 41. The outer surface of the threaded pin 42 is inserted into the inner wall of the rubber block 45. The slot plate 43 is set on one side of the rubber block 45. By setting the rubber block 45, when the nut 44 squeezes the slot plate 43, the slot plate 43 will abut against the rubber block 45, which helps to prevent the nut 44 from squeezing the slot plate 43 excessively and causing the slot plate 43 to deform. A round block 46 is fixedly installed on one end of the threaded pin 42. The outer diameter of the round block 46 is larger than the outer diameter of the threaded pin 42. By setting the round block 46, one end of the threaded pin 42 can be blocked, which helps to prevent the nut 44 from disengaging from the threaded pin 42.

[0034] Working principle: The puncture needle or rubber tubing is placed between the two semi-rings 2. Pushing the two push rods 34 causes the push plate 32 to move along the inner wall of the rigid resin airbag 31. This pushes the gas from the rigid resin part of the airbag 31 into the rubber part, causing it to deform until the rubber-protruding end of the airbag 31 is completely in contact with the outer surface of the puncture needle or rubber tubing. Simultaneously, as the push plate 32 slides along the inner wall of the airbag 31, it causes the push rods 34 and the auxiliary block 41 to move synchronously. The auxiliary block 41 causes the threaded pin 42 to slide along the inner wall of the slot plate 43. Rotating the nut 44 causes one side of the nut 44 to press against the slot plate 43, thus... Nut 44 abuts against the slot plate 43, and slot plate 43 abuts against the rubber block 45. Nut 44 can fix the threaded pin 42 and slot plate 43, and thus fix the push plate 32. Under the combined action of spring 35 compression, it helps to prevent the push plate 32 from shifting and causing the airbag 31 to loosen its contact with the puncture needle and rubber tube. The airbag 31 on one side of the two half rings 2 can provide auxiliary fixation between the rubber tube and the puncture needle and the two half rings 2. It also makes it easy to adjust the airbag 31 according to the actual model and outer diameter of the puncture needle or rubber tube, so that the two half rings 2 can achieve a more stable clamping effect on different models of puncture needles or rubber tubes.

Claims

1. A puncture needle support and fixation device, comprising two clamps (1), characterized in that: The two clamps (1) are connected by a coil spring on their adjacent sides. A semi-ring (2) is symmetrically fixed on one side of the clamp (1). An adjustment device (3) is provided on the inner wall of the semi-ring (2). The adjustment device (3) uses two airbags (31) with adjustable deformation to replace the inner wall of the two semi-rings (2) and abut against the outer surface of the puncture needle or rubber tube to fix the puncture needle or rubber tube.

2. The puncture needle support and fixation device according to claim 1, characterized in that: The adjusting device (3) includes an airbag (31), which is installed on the inner wall of the semi-ring (2). A push plate (32) is slidably installed on the inner wall of the airbag (31). A push rod (34) is fixedly installed on one side of the push plate (32). A limit plate (33) is fixedly installed on one side of the airbag (31). The outer surface of the push plate (32) is slidably installed on the inner wall of the limit plate (33). A spring (35) is sleeved on the outer surface of the push rod (34). The two ends of the spring (35) are respectively fixedly installed on one side of the push plate (32) and the limit plate (33).

3. The puncture needle support and fixation device according to claim 2, characterized in that: The part of the airbag (31) inside the two semi-rings (2) is made of rubber, and the part of the airbag (31) outside the two semi-rings (2) is made of hard resin.

4. The puncture needle support and fixation device according to claim 2, characterized in that: Several rubber protrusions are provided on the side of the two airbags (31) that are close to each other.

5. The puncture needle support and fixation device according to claim 2, characterized in that: A rubber ring (36) is fixedly installed on the outer surface of the push plate (32), and the outer surface of the rubber ring (36) abuts against the inner wall of the airbag (31).

6. The puncture needle support and fixation device according to claim 2, characterized in that: An auxiliary component (4) is provided at one end of the push rod (34). The auxiliary component (4) includes an auxiliary block (41). The auxiliary block (41) is fixedly installed at one end of the push rod (34). Threaded pins (42) are fixedly installed on both sides of the auxiliary block (41). A slot plate (43) is symmetrically fixedly installed on one side of the airbag (31). The outer surface of the threaded pin (42) is inserted into the inner wall of the slot plate (43). A nut (44) is threadedly connected to the outer surface of the threaded pin (42).

7. The puncture needle support and fixation device according to claim 6, characterized in that: Rubber blocks (45) are symmetrically installed on both sides of the auxiliary block (41), the outer surface of the threaded pin (42) is inserted into the inner wall of the rubber block (45), and the slot plate (43) is set on one side of the rubber block (45).

8. The puncture needle support and fixation device according to claim 6, characterized in that: A round block (46) is fixedly installed at one end of the threaded pin (42), and the outer diameter of the round block (46) is larger than the outer diameter of the threaded pin (42).

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