CN215900573U - Venous transfusion port puncture fixer - Google Patents
Venous transfusion port puncture fixer Download PDFInfo
- Publication number
- CN215900573U CN215900573U CN202120744339.8U CN202120744339U CN215900573U CN 215900573 U CN215900573 U CN 215900573U CN 202120744339 U CN202120744339 U CN 202120744339U CN 215900573 U CN215900573 U CN 215900573U
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- China
- Prior art keywords
- fixed cylinder
- puncture
- bearing
- bearings
- nuts
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- 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
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 230000008093 supporting effect Effects 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 12
- 238000001802 infusion Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 210000003811 finger Anatomy 0.000 description 5
- 206010067484 Adverse reaction Diseases 0.000 description 2
- 244000241796 Christia obcordata Species 0.000 description 2
- 206010051837 Skin induration Diseases 0.000 description 2
- 230000006838 adverse reaction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process 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
- 230000000474 nursing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a puncture fixer for a venous transfusion port, which comprises a fixed cylinder, wherein a supporting plate is arranged at the rear inside the fixed cylinder, mounting plates are arranged on the left and right sides of the front surface of each supporting plate, supports for lead screws are respectively mounted on the two mounting plates, two-way lead screws are respectively mounted in the two supports for the lead screws, nuts are respectively mounted on the left and right sides of each two-way lead screw, linear optical axes are respectively arranged on the upper and lower sides of each two-way lead screw, linear bearings are respectively mounted on the left and right sides of each linear optical axis, L-shaped connecting plates are respectively arranged between the two linear bearings and the nuts on the left side and between the two linear bearings and the nuts on the right side, positioning blocks are respectively arranged on the front surfaces of the two L-shaped connecting plates, puncture holes are formed in a sealing cover, and needle withdrawing grooves are respectively formed in the fixed cylinder and the sealing cover. The utility model is sleeved on the injection base through the fixed cylinder, thereby determining the central point for puncture, and having accurate positioning and convenient operation.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a puncture fixer for a venous transfusion port.
Background
Because the venous transfusion port has no catheter on the body surface, a transfusion needle without damage needs to be used for puncture from the body surface into the subcutaneous transfusion seat for transfusion. In the current clinical transfusion operation specification, a nurse is required to palpate to find an injection seat, confirm the edge of the injection seat, fix the injection seat by using the thumb, the index finger and the middle finger of a non-dominant hand, make the injection seat into a triangle, arch up a transfusion port and determine the centers of the three fingers. The butterfly wing needle handle is held to the principal power, and the syringe needle pierces perpendicularly from the mid point, has the sense of falling empty to stop, avoids puncture dynamics too big and causes the needle point crooked, sucks 2 ~ 3ml of blood that returns, confirms that the butterfly wing needle is located the injection seat after, fills up the little gauze of jag below the not damaged needle, can confirm gauze pad thickness according to actual conditions, reuse 10 x 12 transparent application external fixation needle.
However, since the injection base is subcutaneous and the body surface has no mark, a nurse needs to manually fix the injection base by using three fingers, and the center point of the injection base is difficult to estimate for puncture, and if the technique is not skilled, the puncture may be unsuccessful.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a puncture fixer for an intravenous infusion port, which solves the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a puncture fixer for venous transfusion harbors comprises a fixed cylinder, wherein a supporting plate is arranged at the rear inside the fixed cylinder, mounting plates are arranged on the left side and the right side of the front of the supporting plate, two supporting seats for lead screws are arranged on the two mounting plates, two bidirectional lead screws are arranged in the two supporting seats for lead screws, nuts are arranged on the left side and the right side of each bidirectional lead screw, linear optical axes are arranged on the upper side and the lower side of each bidirectional lead screw and between opposite surfaces of the two mounting plates, linear bearings are arranged on the left side and the right side of each linear optical axis, L-shaped connecting plates are arranged between the two linear bearings on the left side and the nuts and between the two linear bearings on the right side and the nuts, positioning blocks are arranged on the front of the two L-shaped connecting plates, a plurality of semicircular through holes are respectively arranged on the two positioning blocks, and the semicircular through holes on the left side and the right side are combined into positioning holes, the outer side that just is located two mounting panels on the two-way lead screw is provided with driven gear, the up end of solid fixed cylinder is provided with sealed lid, sealed covering installs the bearing frame, the internally mounted of bearing frame has the bearing, the internally mounted of bearing has the axis of rotation, the inside that just is located solid fixed cylinder in the axis of rotation is provided with the driving gear, the driving gear is connected with the meshing between the driven gear tooth, the regulating wheel is installed to the upper end of axis of rotation, sealed covering and the top that is located a plurality of locating holes is provided with the puncture hole, gu fixed cylinder and sealed covering all open there is the needle groove that moves back.
Preferably, the inner diameter of the fixed barrel is the same as the outer diameter of the hypodermic base.
Preferably, a dressing is attached to the lower end face of the fixed cylinder.
Preferably, the plurality of positioning holes are the infusion injection range of the hypodermic base.
Preferably, the number of the bearings in the bearing seat is two, the two bearings are angular contact ball bearings and are installed oppositely, and the upper end face and the lower end face of the bearing seat are both provided with bearing seat sealing covers.
Preferably, the sealing cover is fixedly connected with the fixed cylinder through a screw, and a mounting hole for mounting the bearing seat is reserved on the sealing cover.
Preferably, the outer side surface of the adjusting wheel is provided with anti-skid stripes.
Compared with the prior art, the utility model has the beneficial effects that: the utility model relates to a puncture fixer for a venous transfusion port, which is sleeved on an injection base through a fixing cylinder, thereby determining the central point of the injection base for puncture, and having accurate positioning and convenient operation; the utility model is provided with a plurality of positioning holes, any positioning hole can enter the injection base, adverse reactions such as skin induration damage of local puncture points and the like caused by repeated puncture agreeing positions can be avoided, the positioning blocks on two sides can be close to or far away from each other by rotating the adjusting wheel, the positioning holes are formed when the positioning blocks are attached together, the positioning holes can be used for puncture positioning, gaps are formed after separation, and the device main body can be taken down from the transfusion damage-free needle.
Drawings
FIG. 1 is a schematic sectional front view of the present invention;
FIG. 2 is a schematic view of the structure at A-A in FIG. 1;
FIG. 3 is a schematic top view of the present invention;
fig. 4 is a schematic front view of the present invention.
In the figure: the automatic needle withdrawing device comprises a fixed cylinder 1, a supporting plate 2, a mounting plate 3, a screw rod 4, a support for the screw rod, a bidirectional screw rod 5, a nut 6, a linear optical axis 7, a linear bearing 8, a 9-L-shaped connecting plate 10, a positioning block 11, a positioning hole 11, a driven gear 12, a sealing cover 13, a bearing seat 14, a rotating shaft 15, a driving gear 16, an adjusting wheel 17, a puncture hole 18 and a needle withdrawing groove 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a puncture fixer for venous transfusion harbors comprises a fixed cylinder 1, wherein a supporting plate 2 is arranged at the rear inside the fixed cylinder 1, mounting plates 3 are respectively arranged at the left side and the right side of the front of the supporting plate 2, the supporting plate 2 and the two mounting plates 3 both play a role in supporting and mounting, two screw rod supports 4 are respectively arranged on the two mounting plates 3, two bidirectional screw rods 5 are respectively arranged inside the two screw rod supports 4, nuts 6 are respectively arranged at the left side and the right side of each bidirectional screw rod 5, linear optical axes 7 are respectively arranged between the opposite surfaces of the two mounting plates 3 at the upper side and the lower side of each bidirectional screw rod 5, linear bearings 8 are respectively arranged at the left side and the right side of each linear optical axis 7, the linear optical axes 7 and the linear bearings 8 play a role in guiding and supporting, L-shaped connecting plates 9 are respectively arranged between the left two linear bearings 8 and the nuts 6 and between the right side linear bearings 8 and the nuts 6, the front surfaces of the two L-shaped connecting plates 9 are respectively provided with a positioning block 10, the two positioning blocks 10 are respectively provided with a plurality of semicircular through holes, the semicircular through holes with opposite left and right sides are combined into a positioning hole 11, the positioning hole 11 is used for puncture positioning, a driven gear 12 is arranged on the bidirectional screw 5 and positioned outside the two mounting plates 3, the upper end surface of the fixed cylinder 1 is provided with a sealing cover 13, the sealing cover 13 is provided with a bearing seat 14, a bearing is arranged inside the bearing seat 14, a rotating shaft 15 is arranged inside the bearing, the bearing is used for rolling and supporting the rotating shaft 15, a driving gear 16 is arranged on the rotating shaft 15 and positioned inside the fixed cylinder 1, the driving gear 16 is meshed with the driven gear 12, an adjusting wheel 17 is arranged at the upper end of the rotating shaft 15, and the adjusting wheel 17 is rotated to drive the rotating shaft 15 to rotate, through the intertooth meshing effect of driving gear 16 and driven gear 12's intertooth, drive two-way lead screw 6 and rotate, under the guide supporting effect of upper and lower both sides linear bearing 8 and sharp optical axis 7, make the nut 6 and the ascending motion of opposite side of L type connecting plate 9 of the left and right sides, and then drive the locating piece 10 of both sides and be close to each other or keep away from, sealed lid 13 is last and be located the top of a plurality of locating holes 11 and be provided with puncture hole 18 for through the infusion not damaged needle, all open needle withdrawal groove 19 on fixed cylinder 1 and the sealed lid 13, be used for taking off the device main part from the infusion not damaged needle.
Particularly, the inner diameter of the fixed cylinder 1 is the same as the outer diameter of the hypodermic base, and the fixed cylinder can be clamped on the hypodermic base on the body surface, so that the hypodermic base is convenient to move, and unstable fixation of three fingers of a hand is avoided.
Particularly, dressing is attached to the lower end face of the fixing barrel 1, so that the fixing after puncture is convenient.
Specifically, a plurality of the positioning holes 11 are within the infusion injection range of the hypodermic injection base, any one positioning hole 11 can enter the injection base, the positioning holes 11 at different positions can be used in a planned way every time, and adverse reactions such as skin induration and damage of local puncture points caused by repeated puncture agreeing positions are avoided.
Specifically, the number of the bearings in the bearing seat 14 is two, the two bearings are angular contact ball bearings and are installed oppositely to bear the axial force and the radial force applied to the rotating shaft 15, and the upper end face and the lower end face of the bearing seat 14 are both provided with bearing seat sealing covers to play a role in sealing protection.
Specifically, the sealing cover 13 is fixedly connected with the fixed cylinder 1 through a screw, and a mounting hole for mounting the bearing seat 14 is reserved on the sealing cover 13.
Particularly, the lateral surface of regulating wheel 17 sets up anti-skidding stripe, increase frictional force, convenient to use.
The working principle is as follows: when the puncture needle is used, firstly, a nursing worker holds the fixing cylinder 1 with the left hand and sleeves the injection base embedded under the skin, so that the puncture hole 18 and the midpoint of the injection base are positioned on the same axis; then, the right hand vertically holds the transfusion atraumatic needle and gently punctures the skin from the puncture hole 18 and any one positioning hole 11; then, the adjusting wheel 17 is rotated, the adjusting wheel 17 drives the rotating shaft 15 to rotate, the bidirectional screw 5 is driven to rotate through the inter-tooth meshing action of the driving gear 16 and the driven gear 12, the nuts 6 and the L-shaped connecting plates 9 on the left side and the right side move in opposite directions under the guiding and supporting action of the linear bearings 8 on the upper side and the lower side and the linear optical axis 7, the positioning blocks 10 on the two sides are further driven to be away from each other, and the fixing cylinder 1 can be taken down from the transfusion damage-free needle according to the orientation of the needle withdrawing groove 19; finally, the lower end surface dressing of the fixed cylinder 1 is left on the skin and fixed by using the application.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a venous transfusion port puncture fixer, includes a fixed section of thick bamboo (1), its characterized in that: the fixing device is characterized in that a supporting plate (2) is arranged at the rear inside the fixing barrel (1), mounting plates (3) are arranged on the left side and the right side of the front of the supporting plate (2), two supporting seats (4) for a lead screw are arranged on the two mounting plates (3), two bidirectional lead screws (5) are arranged inside the two supporting seats (4) for the lead screw, nuts (6) are arranged on the left side and the right side of the bidirectional lead screws (5), linear optical axes (7) are arranged on the upper side and the lower side of the bidirectional lead screws (5) and between opposite surfaces of the two mounting plates (3), linear bearings (8) are arranged on the left side and the right side of each linear optical axis (7), L-shaped connecting plates (9) are arranged between the left two linear bearings (8) and the nuts (6) and between the right side of the two linear bearings (8) and the nuts (6), and positioning blocks (10) are arranged on the front of the two L-shaped connecting plates (9), two it has a plurality of semi-circular through-holes to open respectively on locating piece (10), left and right sides position is relative semi-circular through-hole makes up into locating hole (11), the outside that just is located two mounting panels (3) on two-way lead screw (5) is provided with driven gear (12), the up end of solid fixed cylinder (1) is provided with sealed lid (13), install bearing frame (14) on sealed lid (13), the internally mounted of bearing frame (14) has the bearing, the internally mounted of bearing has axis of rotation (15), the inside that just is located solid fixed cylinder (1) on axis of rotation (15) is provided with driving gear (16), driving gear (16) and driven gear (12) intertooth meshing are connected, regulating wheel (17) are installed to the upper end of axis of rotation (15), sealed lid (13) are gone up and are located the top of a plurality of locating holes (11) and are provided with puncture hole (18), needle withdrawing grooves (19) are formed in the fixed cylinder (1) and the sealing cover (13).
2. The venous access port puncture anchor of claim 1, wherein: the inner diameter of the fixed cylinder (1) is the same as the outer diameter of the hypodermic base.
3. The venous access port puncture anchor of claim 1, wherein: dressing is attached to the lower end face of the fixed cylinder (1).
4. The venous access port puncture anchor of claim 1, wherein: the positioning holes (11) are the infusion injection range of the hypodermic base.
5. The venous access port puncture anchor of claim 1, wherein: the bearing seat comprises a bearing seat (14), wherein the number of the bearings in the bearing seat (14) is two, the two bearings are angular contact ball bearings and are oppositely installed, and the upper end face and the lower end face of the bearing seat (14) are provided with bearing seat sealing covers.
6. The venous access port puncture anchor of claim 1, wherein: the sealing cover (13) is fixedly connected with the fixed cylinder (1) through screws, and mounting holes for mounting the bearing seats (14) are reserved on the sealing cover (13).
7. The venous access port puncture anchor of claim 1, wherein: the outer side surface of the adjusting wheel (17) is provided with anti-skid stripes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120744339.8U CN215900573U (en) | 2021-04-13 | 2021-04-13 | Venous transfusion port puncture fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120744339.8U CN215900573U (en) | 2021-04-13 | 2021-04-13 | Venous transfusion port puncture fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215900573U true CN215900573U (en) | 2022-02-25 |
Family
ID=80286304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120744339.8U Expired - Fee Related CN215900573U (en) | 2021-04-13 | 2021-04-13 | Venous transfusion port puncture fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215900573U (en) |
-
2021
- 2021-04-13 CN CN202120744339.8U patent/CN215900573U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20220225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |