CN211094463U - Sheath-protecting saw blade with water injection pipe - Google Patents
Sheath-protecting saw blade with water injection pipe Download PDFInfo
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- CN211094463U CN211094463U CN201921854690.1U CN201921854690U CN211094463U CN 211094463 U CN211094463 U CN 211094463U CN 201921854690 U CN201921854690 U CN 201921854690U CN 211094463 U CN211094463 U CN 211094463U
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- sheath
- water injection
- injection pipe
- saw blade
- cover plate
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Abstract
The utility model provides a protect sheath saw bit with water injection pipe, including protecting the sheath and installing in protecting the sheath and can be protecting the reciprocal wobbling saw bit in the sheath, the saw head of saw bit is followed protect the front end of sheath and stretch out, wherein, still include and protect the water injection pipe that the sheath is connected, it is by the water injection passageway to the back forward to form on the sheath, the water injection pipe with water injection passageway intercommunication, the front portion of protecting the sheath is provided with the delivery port. The utility model discloses, can carry out the water injection to saw cutting the position through water injection pipe and the water injection passageway on protecting the sheath, be convenient for wash and cool down saw cutting the position, with the water injection structure with protect the sheath integration together, the one-man operation of being convenient for to the water injection position is more accurate.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to protect sheath saw bit with water injection pipe.
Background
When the medical saw blade works, the cutting of bone tissues is realized by the high-frequency reciprocating swing of the saw blade, and as the saw blade is easy to generate heat by friction when cutting bones at a high speed, the heat loss or necrosis of bone cells is easy to cause under the condition of overhigh temperature; in addition, at the in-process that saw cuts bone tissue, the bone tissue body fluid, blood and the piece that are sawed can shelter from the saw cutting position, and the cutting situation is observed clearly to the not convenient for, therefore needs the water injection to wash the grinding position to reach the purpose of cooling in abluent while. The existing mode is that when a doctor operates a sheath protection saw blade, water injection is assisted by other medical personnel, two persons are needed for operation, and operation is inconvenient for the focus position with narrow space.
SUMMERY OF THE UTILITY MODEL
In view of the above the not enough of prior art, the utility model aims to provide a protect sheath saw bit with water injection pipe is convenient for cool down the saw bit when wasing the cutting position.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
the utility model provides a protect sheath saw bit with water injection pipe, is including protecting the sheath and installing protect in the sheath and can protect the reciprocal wobbling saw bit in the sheath, the saw head of saw bit is followed protect the front end of sheath and stretch out, wherein, still include and protect the water injection pipe that the sheath is connected, it is by the water injection passageway of back forward to form on the sheath, the water injection pipe with water injection passageway intercommunication, the front portion of protecting the sheath is provided with the delivery port.
By adopting the structure, water can be injected to the cutting position through the water injection pipe and the water injection channel on the protective sheath, so that the cutting position can be conveniently cleaned and cooled, and the cooling water at the water outlet can simultaneously cool the saw blade; the water injection structure and the sheath are integrated together, so that the water injection structure is convenient for single-person operation, and the water injection position is more accurate.
Optionally, the sheath includes an upper cover plate and a lower cover plate, and the mounting cavity for accommodating the saw blade and the water injection channel are formed by an inner cavity between the upper cover plate and the lower cover plate.
Optionally, the water injection tube is connected to the rear portion of the sheath.
Optionally, the water injection tube is welded to the sheath.
Optionally, the water injection pipe is connected to one side of the sheath in the width direction.
Optionally, two sides of the upper cover plate are hermetically welded with two sides of the lower cover plate.
Optionally, a water inlet is formed in the side edge of the upper cover plate or the lower cover plate, and the water injection pipe is connected with the water inlet.
Optionally, the front end of the sheath is open and forms the water outlet.
Optionally, the front portion of the sheath is provided with a chip removal hole and/or a chip removal port, and the chip removal hole and/or the chip removal port form the water outlet.
Optionally, one end of the water injection pipe is connected with the sheath, and the other end of the water injection pipe is connected with a water injection hose.
As mentioned above, the utility model has the advantages that: the utility model discloses, can carry out the water injection to the cutting position through the water injection pipe with the water injection passageway on protecting the sheath, be convenient for wash and cool down the cutting position, with the water injection structure with protect the sheath integration together, the one-man operation of being convenient for to the water injection position is more accurate.
Drawings
FIG. 1 is a schematic structural view of a sheath saw blade according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic view of one of the cover plates according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a water injection pipe according to an embodiment of the present invention;
fig. 6 and 7 are schematic views showing the flow direction of water injection.
Part number description:
1-sheath protection; 11-an upper cover plate; 12-a lower cover plate; 12 a-a ledge; 13-a water inlet; 14-chip removal holes; 15-chip removal port; 2-a saw blade; 3-water injection pipe; 31-pawl; 4-water injection hose.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Examples
As shown in fig. 1 to 5, the sheath-protecting saw blade with a water injection pipe in this example comprises a sheath 1 and a saw blade 2 mounted in the sheath 1 and capable of oscillating back and forth in the sheath 1, wherein the rear end of the saw blade 2 is a driving part matched with a driving mechanism, the front end of the saw blade 2 is a saw head, and the end part of the saw head is toothed for sawing tissues; the saw blade 2 can swing back and forth along the width direction of the saw blade 2 under the action of the driving mechanism; the saw head of saw bit 2 stretches out the front end of protecting sheath 1, and the key lies in still including the water injection pipe 3 of being connected with protecting sheath 1, protect and form the water injection passageway B along the front and back direction on the sheath 1, water injection pipe 3 with water injection passageway B intercommunication supplies water to water injection passageway B, the front portion of protecting sheath 1 is provided with the delivery port, and the delivery port can be one or more.
Can carry out the water injection to the cutting position through water injection pipe 3 and water injection passageway B on protecting sheath 1, be convenient for wash and cool down the cutting position, with the water injection structure with protect sheath 1 integrated to together, the one-man operation of being convenient for, and the water injection position is more accurate, adapt to more constrictive position, as long as protect the place that sheath 1 saw bit 2 can reach and can both clean and cool down the water injection, and the cooling water of delivery port can cool down the saw bit head at least, avoid the high temperature damage tissue.
In one embodiment, said water injection channel B is formed by the lumen of the sheath 1 for ease of manufacturing, i.e. the sheath 1 provides both mounting space for the saw blade 2 and the water injection channel B. And the water injection pipe 3 is connected with the rear part of the sheath 1, injects water from the rear part of the sheath 1 and flows out from a water outlet at the front part of the sheath 1. Not only simplifies the installation structure, realizes water injection, but also cools the saw blade 2 in the sheath 1, and is beneficial to the discharge of bone fragments.
In one embodiment, the water injection pipe 3 is welded with the sheath 1, and the joint is full-welded to prevent water leakage.
In one embodiment, the water injection pipe 3 is connected to one side of the sheath 1 in the width direction, i.e., the side of the sheath 1, i.e., the left side or the right side in fig. 3.
In order to facilitate water supply, one end of the water injection pipe 3 is connected with the sheath 1, the other end of the water injection pipe is connected with the water injection hose 4, the water injection hose 4 is detachably connected with the water injection pipe 3, in this example, in order to ensure firm connection, the water injection pipe 3 is provided with inverted teeth 31, and the water injection hose 4 is sleeved on the inverted teeth 31 of the water injection hose 4 to prevent slipping; other embodiments may also employ threaded connections, etc., as shown in fig. 1 and 5.
As shown in fig. 3, the sheath 1 includes an upper cover plate 11 and a lower cover plate 12 connected to each other, two side edges (left and right sides) of the upper cover plate 11 are hermetically connected to two side edges (left and right sides) of the lower cover plate 12, and an installation cavity for accommodating the saw blade 2 and the water injection channel B are enclosed between the upper cover plate 11 and the lower cover plate 12.
The left and right sides of the upper cover plate 11 are welded to the left and right sides of the lower cover plate 12, wherein the left and right sides of the upper cover plate 11 are provided with convex edges 12a, or the left and right sides of the lower cover plate 12 are provided with convex edges 12a, or both are provided with convex edges 12 a.
In this embodiment, the two side edges of the lower cover plate 12 are provided with convex edges 12a, as shown in fig. 3 and 4, the convex edges 12a of the lower cover plate 12 are welded to the upper cover plate 11, the convex edges 12a of the lower cover plate 12 are provided with water inlets 13, and the water injection pipes 3 are welded to the convex edges 12a and are communicated with the water inlets 13.
Wherein, the opening at the front end of the protective sheath 1 forms a water outlet, and the injected water can flow out from the front end of the protective sheath 1 (the gap between the saw blade 2 and the protective sheath 1).
In one embodiment, a plurality of chip removal holes 14 are formed in the upper cover plate 11 and the lower cover plate 12, and the chip removal holes 14 also form water outlets; in one embodiment, the side of the sheath 1 is provided with a chip removal port 15, in this case, the chip removal port 15 is opened on the convex edge 12a, and the chip removal port 15 also forms a water outlet. And water is discharged from a plurality of positions, so that the requirements of cleaning and cooling are met, and the coverage is wider.
During installation, after the saw blade 2 is installed in the lower cover plate 12, the upper cover plate 11 is installed, the upper cover plate 11 and the two sides of the lower cover plate 12 are welded in a full welding mode, then the water injection pipe 3 and the side face of the lower cover plate 12 (or the upper cover plate 11) are welded in the full welding mode, water leakage is avoided, the water injection hose 4 is sleeved into the tail end of the water injection pipe 3 in use, and the water injection hose 4 cannot fall off from the water injection pipe 3 due to the fact that the inverted teeth 31 are designed at the tail end of the water injection.
As shown in fig. 6 and 7, the cooling water flows to each part of the saw blade 2 and the surgical site in the direction of the arrows shown in the drawing, thereby cooling the saw blade 2 and the surgical site. Through the reciprocating swing of saw bit 2, form a negative pressure region and positive pressure region in turn between saw bit 2 and sheath 1, can absorb water during the negative pressure, extrude water during the positive pressure, partly backward flow, partly flow to the operation region.
The utility model discloses, can carry out the water injection to the cutting position through water injection pipe 3 and water injection passageway B on protecting sheath 1, be convenient for wash and cool down the cutting position, with the water injection structure with protect sheath 1 integrated together, the one-man operation of being convenient for to the water injection position is more accurate.
Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a protect sheath saw bit with water injection pipe, is including protecting the sheath and installing and protecting in the sheath and can be in protect the saw bit of sheath internal reciprocating swing, the saw head of saw bit follow the front end of protecting the sheath stretches out its characterized in that: the water injection device is characterized by further comprising a water injection pipe connected with the protective sheath, a water injection channel from back to front is formed in the protective sheath, the water injection pipe is communicated with the water injection channel, and a water outlet is formed in the front of the protective sheath.
2. The sheath saw blade with a water injection pipe according to claim 1, wherein: the sheath comprises an upper cover plate and a lower cover plate, and an installation cavity for accommodating the saw blade and the water injection channel are formed by an inner cavity between the upper cover plate and the lower cover plate.
3. The sheath saw blade with a water injection pipe according to claim 1, wherein: the water injection pipe is connected with the rear part of the sheath.
4. The sheath saw blade with a water injection pipe according to claim 1, wherein: and the water injection pipe is welded with the sheath.
5. The sheath saw blade with a water injection pipe according to claim 1, wherein: the water injection pipe is connected to the side surface of the sheath.
6. The sheath saw blade with a water injection pipe according to claim 2, wherein: and two side edges of the upper cover plate are hermetically welded with two side edges of the lower cover plate.
7. The sheath saw blade with a water injection pipe according to claim 6, wherein: the side of upper cover plate or lower apron is seted up the water inlet, the water injection pipe with the water inlet is connected.
8. The sheath saw blade with a water injection pipe according to claim 1, wherein: the front end of the sheath is open and forms the water outlet.
9. The sheath saw blade with a water injection pipe according to claim 8, wherein: the front part of the sheath is provided with a chip removal hole and/or a chip removal port, and the chip removal hole and/or the chip removal port form the water outlet.
10. The sheath-protecting saw blade with a water injection pipe according to any one of claims 1 to 9, wherein: one end of the water injection pipe is connected with the sheath, and the other end of the water injection pipe is connected with a water injection hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921854690.1U CN211094463U (en) | 2019-10-31 | 2019-10-31 | Sheath-protecting saw blade with water injection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921854690.1U CN211094463U (en) | 2019-10-31 | 2019-10-31 | Sheath-protecting saw blade with water injection pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211094463U true CN211094463U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921854690.1U Active CN211094463U (en) | 2019-10-31 | 2019-10-31 | Sheath-protecting saw blade with water injection pipe |
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| CN (1) | CN211094463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115227332A (en) * | 2022-06-30 | 2022-10-25 | 重庆西山科技股份有限公司 | Sheath saw blade with cooling system |
-
2019
- 2019-10-31 CN CN201921854690.1U patent/CN211094463U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115227332A (en) * | 2022-06-30 | 2022-10-25 | 重庆西山科技股份有限公司 | Sheath saw blade with cooling system |
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