CN210727758U - Novel needle holder - Google Patents
Novel needle holder Download PDFInfo
- Publication number
- CN210727758U CN210727758U CN201921109132.2U CN201921109132U CN210727758U CN 210727758 U CN210727758 U CN 210727758U CN 201921109132 U CN201921109132 U CN 201921109132U CN 210727758 U CN210727758 U CN 210727758U
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- CN
- China
- Prior art keywords
- sliding plate
- needle
- sleeve
- grooves
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000004369 blood Anatomy 0.000 claims abstract description 47
- 239000008280 blood Substances 0.000 claims abstract description 47
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 210000003462 vein Anatomy 0.000 description 5
- 238000010241 blood sampling Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 210000005224 forefinger Anatomy 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
The utility model discloses a novel needle holder, which comprises a sleeve with two open ends, wherein one end of the sleeve is provided with a connecting seat, the connecting seat is provided with a connecting hole along the axial direction of the sleeve, the connecting hole is used for leading the tail end of a blood collecting needle to penetrate into the sleeve and fix the sleeve, the connecting seat is internally provided with a first sliding plate and a second sliding plate which are parallel, the first sliding plate and the second sliding plate are arranged perpendicular to the central shaft of the sleeve, the first sliding plate and the second sliding plate can both slide along the same direction in a plane where the first sliding plate and the second sliding plate are arranged, one end of the first sliding plate corresponding to the sliding direction is provided with a first spring, and the other end of; a first pinhole is formed in the first sliding plate, a second pinhole is formed in the second sliding plate, and the overlapped part of the first pinhole and the second pinhole forms a connecting hole. The utility model discloses convenient operation can accomplish the loading and unloading of blood taking needle by one hand, and collection blood needle is connected stably.
Description
Technical Field
The utility model belongs to the field of medical equipment, concretely relates to novel needle holder.
Background
The split type blood taking needle is a disposable blood taking needle which is generally used clinically, basically replaces a blood taking mode of an injector used in the last century, and is often matched with a disposable blood taking tube for use. The structure is that a blood collecting needle is connected with a needle seat at the tail end of a hose of an intravenous infusion needle. When the vacuum blood collection needle is used, the blood collection needle is required to be connected to the front end of the outer cylinder of the needle holder, the vein puncture is carried out by holding the vein puncture needle by hand, after the vein puncture is successfully carried out, the vacuum blood collection tube is inserted into the cavity at the rear end of the needle holder, the blade opening of the blood collection needle penetrates through the blood blocking sleeve and penetrates into the rubber plug of the vacuum tube, and blood is sucked into the blood collection tube under the action of negative pressure. When needed, the blood can be collected by multiple tubes by repeating the steps; after blood sampling is finished, the vein puncture needle is pulled out, local hemostasis is carried out, the blood sampling needle is taken down from the needle holder, and the blood sampling needle and the vein puncture needle are discarded in a waste box. The conventional blood collection needle is manually screwed to the opening of the needle holder by a screw thread.
Chinese patent CN201005707Y discloses a blood taking needle holder, wherein a connecting seat capable of moving horizontally is arranged at the end of a sleeve, and the connecting seat is moved with small force to open or close a blood taking needle fixing ring on the connecting seat, so as to realize the assembly and disassembly of a blood taking needle. However, in practical use, the needle holder needs to use a large force when pushing the connecting seat, generally needs two hands to operate together, is inconvenient to operate, and may influence the blood taking efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects existing in the prior art, the utility model provides a needle holder which can complete the assembly and disassembly of a blood taking needle with one hand, the specific scheme is as follows:
the blood collection needle comprises a sleeve with two open ends, wherein one end of the sleeve is provided with a connecting seat, the connecting seat is provided with a connecting hole along the axial direction of the sleeve, the connecting hole is used for allowing the tail end of the blood collection needle to penetrate into the sleeve and fix the sleeve, a first sliding plate and a second sliding plate which are parallel are arranged in the connecting seat, the first sliding plate and the second sliding plate are arranged perpendicular to the central shaft of the sleeve, the first sliding plate and the second sliding plate can slide in the same direction in a plane where the first sliding plate and the second sliding plate are located, one end of the first sliding plate corresponding to the sliding direction is provided with a first spring, and the other end of the second sliding plate corresponding to the sliding direction is; the first sliding plate is provided with a first pinhole, the second sliding plate is provided with a second pinhole, and the overlapped part of the first pinhole and the second pinhole forms a connecting hole.
Further, the connecting seat comprises a cylindrical body coaxial with the sleeve, two first grooves which are oppositely arranged are formed in the side wall of the cylindrical body, the first grooves are perpendicular to the central axis of the cylindrical body, convex strips for connecting the two first grooves are formed in the inner wall of the cylindrical body, grooves matched with the convex strips are formed in two sides of the first sliding plate, and the first sliding plate can slide between the two first grooves; two second grooves corresponding to the two first grooves are arranged below the two first grooves on the inner wall of the cylindrical body, and the second sliding plate can slide between the two second grooves;
a limiting cylinder is sleeved outside the cylindrical body, the first spring is arranged between the inner wall of the limiting cylinder and the first sliding plate, and the second spring is arranged between the inner wall of the limiting cylinder and the second sliding plate; the first sliding plate is provided with a first rod penetrating through the limiting cylinder relative to the other end of the first spring, and the second sliding plate is provided with a second rod penetrating through the limiting cylinder relative to the other end of the second spring.
Further, the inner walls of the first needle hole and the second needle hole are both formed into an upper half section of conical cylindrical structure and a lower half section of conical cylindrical structure, the lower half section of the inner wall of the second needle hole is provided with clamping grooves arranged in the circumferential direction, and the outer wall of the blood collection needle is provided with clamping protrusions matched with the clamping grooves.
The utility model provides a novel needle holder, convenient operation can accomplish the loading and unloading of blood taking needle by one hand, and collection blood needle connects stably.
Drawings
Figure 1 is a schematic structural diagram of the present invention,
FIG. 2 is a schematic structural view of the cylindrical body of the present invention,
FIG. 3 is a schematic structural view of a first slide plate of the present invention,
figure 4 is a schematic view (in plan view) of the working state of the cylindrical body of the present invention,
fig. 5 is an enlarged schematic view of the structures of the first needle hole and the second needle hole of the present invention.
Figure number and name: 1. the sleeve, 2, first slide, 3, second slide, 4, first spring, 5, second spring, 6, first pinhole, 7, second pinhole, 8, cylindric body, 9, first groove, 10, sand grip, 11, recess, 12, second groove, 13, spacing section of thick bamboo, 14, first pole, 15, second pole, 16, draw-in groove.
Detailed Description
In order to explain the technical content, structural features, achieved objects and functions of the present invention in detail, the following embodiments are described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 4, the utility model discloses a novel needle holder, which comprises a sleeve 1 with two open ends, wherein one end of the sleeve 1 is provided with a connecting seat, the connecting seat is provided with a connecting hole along the axial direction of the sleeve 1, the connecting hole is used for allowing the tail end of a blood collection needle to penetrate into the sleeve and fix the sleeve, the connecting seat is internally provided with a first sliding plate 2 and a second sliding plate 3 which are parallel, the first sliding plate 2 and the second sliding plate 3 are arranged perpendicular to the central shaft of the sleeve 1, the first sliding plate 2 and the second sliding plate 3 can both slide along the same direction in the plane where the first sliding plate is arranged, one end of the first sliding plate 2 corresponding to the sliding direction is provided with a first spring 4, and the other end of the second sliding plate 3 corresponding to; first pinhole 6 has been seted up on first slide 2, has seted up second pinhole 7 on the second slide 3, and the part that first pinhole 6 and second pinhole 7 overlap constitutes the connecting hole promptly.
With reference to fig. 1 to 3, the connecting seat includes a cylindrical body 8 coaxial with the sleeve 1, two first grooves 9 arranged oppositely are formed in a side wall of the cylindrical body 8, the first grooves 9 are perpendicular to a central axis of the cylindrical body 8, a protruding strip 10 connecting the two first grooves 9 is formed in an inner wall of the cylindrical body 8, grooves 11 matched with the protruding strips 10 are formed in two sides of the first sliding plate 2, and the first sliding plate 2 can slide between the two first grooves 9; two second grooves 12 corresponding to the two first grooves 9 are arranged below the two first grooves 9 on the inner wall of the cylindrical body 8, and the second sliding plate 3 can slide between the two second grooves 12;
a limiting cylinder 13 is sleeved outside the cylindrical body 8, the first spring 4 is arranged between the inner wall of the limiting cylinder 13 and the first sliding plate 2, and the second spring 5 is arranged between the inner wall of the limiting cylinder 13 and the second sliding plate 3; the other end of the first sliding plate 2 relative to the first spring 4 is provided with a first rod 14 penetrating out of the limiting cylinder 13, and the other end of the second sliding plate 3 relative to the second spring 5 is provided with a second rod 15 penetrating out of the limiting cylinder 13. The spacing section of thick bamboo has solved the fixed problem of first spring and second spring on the one hand, and on the other hand has injectd the maximum displacement distance of first slide and second slide.
When the blood collection needle is inserted into the connecting hole under stress, the first sliding plate and the second sliding plate are respectively pushed to slide towards two sides, so that the area of the overlapped part of the first needle hole and the second needle hole is increased, the overlapped part of the first needle hole and the second needle hole can tightly clamp the blood collection needle under the action of the spring, and the blood collection needles of different types can be accommodated in the connecting hole.
As figure 5, the inner walls of the first needle hole 6 and the second needle hole 7 are all formed into a cylindrical structure with a conical upper half section and a cylindrical lower half section, so that the blood collection needle can smoothly push the first sliding plate and the second sliding plate to slide along the horizontal direction when receiving a downward force, the lower half section of the inner wall of the second needle hole 7 is provided with a clamping groove 16 arranged in the circumferential direction, and the outer wall of the blood collection needle is provided with a clamping protrusion (not shown in the figure) matched with the clamping groove 16. When the blood collection needle receives an upward force (for example, a blood collection tube is inserted from the lower part of the sleeve), the position of the blood collection needle cannot be changed, and when the clamping groove on the outer wall of the blood collection needle is clamped into the clamping protrusion on the inner wall of the second needle hole, the position of the blood collection needle cannot be changed even if the blood collection needle receives a downward force (for example, the action of pulling out the blood collection tube during replacement).
The working process of the utility model is as follows:
the sleeve is held by the right hand to be adjusted to a proper position, the blood collecting needle is pinched by the thumb and the forefinger of the right hand and is inserted into the first needle hole, and the blood collecting needle is pressed downwards until a click sound is heard (the clamping bulge on the outer wall of the blood collecting needle is clamped into the clamping groove of the second needle hole), and blood can be collected normally at the moment; after blood sampling, handstand the sleeve in abandonment box top, rotate sleeve to suitable position, first pole and second pole are pressed respectively to right hand thumb and forefinger, and blood collection needle is deviate from the connecting seat and is fallen into abandonment box under the effect of gravity.
In summary, the preferred embodiments of the present invention are only examples, and the scope of the present invention is not limited thereto, and all equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification are within the scope covered by the present invention.
Claims (3)
1. The utility model provides a novel needle holder, includes open sleeve (1) in both ends, the one end of sleeve (1) is equipped with the connecting seat, be equipped with on the connecting seat and follow sleeve (1) axial connecting hole, the connecting hole is used for supplying blood collection needle end to penetrate the sleeve is fixed its characterized in that to it: a first sliding plate (2) and a second sliding plate (3) which are parallel to each other are arranged in the connecting seat, the first sliding plate (2) and the second sliding plate (3) are arranged perpendicular to a central shaft of the sleeve (1), the first sliding plate (2) and the second sliding plate (3) can slide in the same direction in a plane where the first sliding plate (2) is located, a first spring (4) is arranged at one end of the first sliding plate (2) corresponding to the sliding direction, and a second spring (5) is arranged at the other end of the second sliding plate (3) corresponding to the sliding direction; the first sliding plate (2) is provided with a first needle hole (6), the second sliding plate (3) is provided with a second needle hole (7), and the overlapped part of the first needle hole (6) and the second needle hole (7) forms a connecting hole.
2. The novel needle holder of claim 1, wherein: the connecting seat comprises a cylindrical body (8) coaxial with the sleeve (1), two first grooves (9) which are oppositely arranged are formed in the side wall of the cylindrical body (8), the first grooves (9) are perpendicular to the central axis of the cylindrical body (8), convex strips (10) for connecting the two first grooves (9) are arranged on the inner wall of the cylindrical body (8), grooves (11) matched with the convex strips (10) are formed in two sides of the first sliding plate (2), and the first sliding plate (2) can slide between the two first grooves (9); two second grooves (12) corresponding to the first grooves (9) are arranged below the first grooves (9) on the inner wall of the cylindrical body (8), and the second sliding plate (3) can slide between the two second grooves (12);
a limiting cylinder (13) is sleeved outside the cylindrical body (8), the first spring (4) is arranged between the inner wall of the limiting cylinder (13) and the first sliding plate (2), and the second spring (5) is arranged between the inner wall of the limiting cylinder (13) and the second sliding plate (3); the other end of the first sliding plate (2) corresponding to the first spring (4) is provided with a first rod (14) penetrating out of the limiting cylinder (13), and the other end of the second sliding plate (3) corresponding to the second spring (5) is provided with a second rod (15) penetrating out of the limiting cylinder (13).
3. The novel needle holder of claim 2, wherein: the inner wall of the first needle hole (6) and the inner wall of the second needle hole (7) are both formed into an upper half section of conical lower half section cylindrical structure, the lower half section of the inner wall of the second needle hole (7) is provided with clamping grooves (16) which are circumferentially arranged, and the outer wall of the blood collection needle is provided with clamping protrusions matched with the clamping grooves (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921109132.2U CN210727758U (en) | 2019-07-15 | 2019-07-15 | Novel needle holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921109132.2U CN210727758U (en) | 2019-07-15 | 2019-07-15 | Novel needle holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210727758U true CN210727758U (en) | 2020-06-12 |
Family
ID=71004232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921109132.2U Expired - Fee Related CN210727758U (en) | 2019-07-15 | 2019-07-15 | Novel needle holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210727758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932479A (en) * | 2021-02-05 | 2021-06-11 | 甘肃省动物疫病预防控制中心 | Animal doctor uses animal blood collection system |
-
2019
- 2019-07-15 CN CN201921109132.2U patent/CN210727758U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932479A (en) * | 2021-02-05 | 2021-06-11 | 甘肃省动物疫病预防控制中心 | Animal doctor uses animal blood collection system |
| CN112932479B (en) * | 2021-02-05 | 2022-05-20 | 甘肃省动物疫病预防控制中心 | Animal doctor uses animal blood collection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 Termination date: 20210715 |